JPH1084607A - Gas-insulated safety enclosed switchgear - Google Patents

Gas-insulated safety enclosed switchgear

Info

Publication number
JPH1084607A
JPH1084607A JP9044987A JP4498797A JPH1084607A JP H1084607 A JPH1084607 A JP H1084607A JP 9044987 A JP9044987 A JP 9044987A JP 4498797 A JP4498797 A JP 4498797A JP H1084607 A JPH1084607 A JP H1084607A
Authority
JP
Japan
Prior art keywords
insulating
gas
disconnector
phase
insulating bushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9044987A
Other languages
Japanese (ja)
Inventor
Masaru Miyagawa
勝 宮川
Tetsuo Yoshida
哲雄 吉田
Akira Sato
章 佐藤
Kazuhito Horikiri
和仁 堀切
Osamu Sakaguchi
修 阪口
Tomio Go
冨夫 郷
Ryoichi Kodama
良一 児玉
Junichi Ikeda
順一 池田
Takeshi Hiramoto
武 平本
Nobuo Masaki
信男 正木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP9044987A priority Critical patent/JPH1084607A/en
Priority to TW086109504A priority patent/TW343401B/en
Priority to IDP972483A priority patent/ID18420A/en
Priority to CN97117452A priority patent/CN1073298C/en
Priority to KR1019970033577A priority patent/KR100271678B1/en
Priority to MYPI97003267A priority patent/MY131531A/en
Publication of JPH1084607A publication Critical patent/JPH1084607A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/202—Cable lay-outs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0358—Connections to in or out conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/045—Details of casing, e.g. gas tightness

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a gas-insulated safety enclosed switchgear capable of exhibiting the advantage of gas insulation by reducing the depth of the box. SOLUTION: A space P1 in the interphase direction of insulating bushings 7N, 7O, 7P provided parallel the top part of a box is made narrower than the width W of the head part 7a of the insulating bushings 7N, 7O, 7P. Therefore, the side surface of a trapezoidal part formed at the right side of the first phase insulating bushing 7N is opposed and mutually adjacent to the side surface of a trapezoidal part at the left side of the second phase insulating bushing 7O. The third insulating 7P to be provided at the rear of the second insulating bushing 7O is positioned in the same manner.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、ガス絶縁金属閉鎖
形スイッチギヤに関する。The present invention relates to a gas-insulated metal closed switchgear.

【０００２】[0002]

【従来の技術】従来のガス絶縁金属閉鎖形スイッチギヤ
の一例を図11の主回路単線結線配置図に示し、この図11
の平面組立図を図12に示す。図11及び図12に示したガス
絶縁金属閉鎖形スイッチギヤは、いわゆる一次２ＣＢ−
１ＶＣＴ−２次２ＣＢ方式の２回線受電設備で、受電側
の引込みは箱体の床下から行い、相互間と負荷側は天井
部で接続した場合である。2. Description of the Related Art An example of a conventional gas insulated metal closed type switchgear is shown in FIG.
FIG. 12 shows a plan assembly view of the above. The gas-insulated metal closed switchgear shown in FIGS. 11 and 12 is a so-called primary 2CB-
In a two-line power receiving facility of the 1VCT-secondary 2CB system, the power receiving side is pulled in from under the floor of the box, and the mutual connection and the load side are connected by a ceiling.

【０００３】図11及び図12において、中央部に設置され
電力取引用計器用変成器（以下、ＶＣＴと表わす。）40
が収納された計器用変成器盤（以下、ＶＣＴ盤と表わ
す）51の両側には、このＶＣＴ盤51の負荷側にケーブル
で並列に接続される１号変圧器一次盤50Ａと２号変圧器
一次盤50Ｂが対称的に隣設されている。In FIGS. 11 and 12, a transformer for an instrument for electric power trading (hereinafter referred to as VCT) 40 is provided at the center.
Are mounted on both sides of an instrument transformer board (hereinafter, referred to as a VCT board) 51 in which a first transformer 50A and a second transformer 50 are connected in parallel by a cable to the load side of the VCT board 51. The primary board 50B is symmetrically disposed adjacent to the primary board 50B.

【０００４】これらの１号変圧器一次盤50Ａと２号変圧
器一次盤50Ｂの外側には、ＶＣＴ盤51の電源側に接続さ
れる１号受電盤49Ａと、この１号受電盤49と異なる系統
の電源側に接続される２号受電盤49Ｂが対称的に隣設さ
れている。[0004] Outside the primary transformer 50A and the primary transformer 50B, the first power receiving panel 49A connected to the power supply side of the VCT board 51 is different from the first power receiving panel 49. A No. 2 power receiving panel 49B connected to the power supply side of the system is symmetrically provided adjacently.

【０００５】このうち、左端の１号受電盤49Ａの後部下
端に収納されたケーブルヘッド32Ａの下端には、このガ
ス絶縁金属閉鎖形スイッチギヤが設置される受電設備の
引込線に接続されるケーブルが接続され、このケーブル
には、変流器31Ａが取り付けられている。[0005] A cable connected to a lead-in wire of a power receiving facility in which the gas-insulated metal closed switchgear is installed is provided at a lower end of a cable head 32A housed in a rear lower end of a leftmost No. 1 power receiving panel 49A. The current transformer 31A is attached to this cable.

【０００６】ケーブルヘッド32Ａの上端は、このケーブ
ルヘッド32Ａの上部に順に収納された避雷器33Ａ，検電
器34Ａ及び接地断路器35Ａと一次断路器36Ａの電源側に
接続され、この一次断路器36Ａの負荷側は、真空遮断器
37Ａの電源側に接続されている。[0006] The upper end of the cable head 32A is connected to the power supply side of a lightning arrester 33A, a voltage detector 34A, a grounding disconnector 35A and a primary disconnector 36A which are housed in order in the upper part of the cable head 32A. Load side is vacuum circuit breaker
It is connected to the power supply side of 37A.

【０００７】この真空遮断器37Ａの負荷側は、二次断路
器38Ａを経て、１号受電盤49Ａの箱体の天井部に縦貫さ
れた外部接続用の図13で詳述する絶縁ブッシング46Ａの
下端に接続されている。The load side of the vacuum circuit breaker 37A is connected to an insulating bushing 46A for external connection, which is vertically penetrated through the secondary disconnecting switch 38A to the ceiling of the box of the first power receiving panel 49A, as shown in FIG. It is connected to the lower end.

【０００８】同じく、右端の２号受電盤49Ｂの後部下端
に収納されたケーブルヘッド32Ｂの下端には、このガス
絶縁金属閉鎖形スイッチギヤが設置される受電設備の異
系統の引込線に接続されるケーブルが接続され、このケ
ーブルには、変流器31Ｂが取り付けられている。Similarly, the lower end of the cable head 32B housed at the rear lower end of the No. 2 power receiving panel 49B at the right end is connected to a service line of a different system of the power receiving equipment in which the gas-insulated metal closed switch gear is installed. A cable is connected, and a current transformer 31B is attached to the cable.

【０００９】ケーブルヘッド32Ｂの上端は、このケーブ
ルヘッド32Ｂの上部に順に収納された避雷器33Ｂ，検電
器34Ｂ及び接地断路器35Ｂと一次断路器36Ｂの電源側に
接続され、この一次断路器36Ｂの負荷側は、真空遮断器
37Ｂの電源側に接続されている。The upper end of the cable head 32B is connected to the power supply side of a lightning arrester 33B, a voltage detector 34B, a grounding disconnector 35B and a primary disconnector 36B which are housed in order in the upper part of the cable head 32B. Load side is vacuum circuit breaker
It is connected to the power supply side of 37B.

【００１０】この真空遮断器37Ｂの負荷側は、二次断路
器38Ｂを経て、母線接地用の接地断路器39と２号受電盤
49Ｂの箱体の天井部に縦貫された外部接続用の図13で詳
述する絶縁ブッシング46Ｂの下端に接続されている。The load side of the vacuum circuit breaker 37B passes through a secondary disconnector 38B, and a ground disconnector 39 for bus grounding and a No. 2 power receiving board.
It is connected to the lower end of an insulating bushing 46B for external connection, which will be described in detail in FIG.

【００１１】この絶縁ブッシング46Ｂの上端には、１号
受電盤49Ａの天井部に縦貫された前述の絶縁ブッシング
46Ａの上端と、ＶＣＴ盤51の天井部に縦貫される電源側
の絶縁ブッシング46Ｅの上端に接続されるＲ相の高圧架
橋ポリエチレンケーブル（以下、単にケーブルという）
47ａ及びＳ相のケーブル47ｂとＴ相のケーブル47ｃとで
一次側の母線を構成する第１母線47の右端が接続されて
いる。At the upper end of the insulating bushing 46B, the above-mentioned insulating bushing penetrating the ceiling of the No. 1 power receiving panel 49A.
An R-phase high-pressure cross-linked polyethylene cable (hereinafter simply referred to as a cable) connected to the upper end of 46A and the upper end of an insulating bushing 46E on the power supply side penetrating the ceiling of the VCT panel 51.
The right end of the first bus 47 that forms the primary bus is connected to the 47a and S-phase cables 47b and the T-phase cable 47c.

【００１２】なお、この第１母線47は、後述する第２母
線48とともに、１号受電盤49Ａ，１号変圧器一次盤50
Ａ，ＶＣＴ盤51，２号変圧器一次盤50Ｂと２号受電盤49
Ｂの上部に載置された図示しないケーブルダクトで覆わ
れている。The first bus 47 is connected to a first power receiving board 49A and a first transformer primary board 50 together with a second bus 48 to be described later.
A, VCT board 51, No. 2 transformer primary board 50B and No. 2 power receiving board 49
B is covered by a cable duct (not shown) placed on the upper part of B.

【００１３】次に、１号変圧器一次盤50Ａの上端に縦貫
され図示しない１号変圧器に接続されるケーブルには、
図11で示す変流器45Ａが接続され、ケーブルヘッド44Ａ
の下端は、接地断路器43Ａの電源側と真空遮断器42Ａの
負荷側に接続されている。[0013] Next, a cable that runs through the upper end of the primary transformer 50A and is connected to the primary transformer (not shown) includes:
The current transformer 45A shown in FIG.
Is connected to the power supply side of the ground disconnecting switch 43A and the load side of the vacuum circuit breaker 42A.

【００１４】この真空遮断器42Ａの電源側に接続された
導体は、この真空遮断器42Ａの下部に収納された断路器
41Ａを経て、この１号変圧器一次盤50Ａの後部を立ち上
がり、天井部の後部に縦貫された外部接続用の絶縁ブッ
シング46Ｃの下端に接続されている。The conductor connected to the power supply side of the vacuum circuit breaker 42A is a disconnector housed under the vacuum circuit breaker 42A.
After passing through 41A, the rear part of the primary panel 50A of the No. 1 transformer rises and is connected to the lower end of an insulating bushing 46C for external connection penetrating the rear part of the ceiling.

【００１５】同じく、２号変圧器一次盤50Ｂの上端に縦
貫され図示しない２号変圧器に接続されるケーブルに
は、変流器45Ｂが接続され、ケーブルヘッド44Ｂの下端
は、接地断路器43Ｂの電源側と真空遮断器42Ｂの負荷側
に接続されている。Similarly, a current transformer 45B is connected to a cable extending through the upper end of the No. 2 transformer primary panel 50B and connected to a No. 2 transformer (not shown), and a lower end of the cable head 44B is connected to a ground disconnector 43B. And the load side of the vacuum circuit breaker 42B.

【００１６】この真空遮断器42Ｂの電源側に接続された
導体は、この真空遮断器42Ｂの下部に収納された断路器
41Ｂを経て、この２号変圧器一次盤50Ｂの後部を立ち上
がり、天井部の後部に縦貫された外部接続用の絶縁ブッ
シング46Ｄの下端に接続されている。A conductor connected to the power supply side of the vacuum circuit breaker 42B is a disconnector housed under the vacuum circuit breaker 42B.
After passing through 41B, the rear part of the No. 2 transformer primary board 50B rises, and is connected to the lower end of an external connection insulating bushing 46D penetrating the rear part of the ceiling.

【００１７】この絶縁ブッシング46Ｄの上端には、１号
変圧器一次盤50Ａの天井部に縦貫された前述の絶縁ブッ
シング46Ｃの上端と、ＶＣＴ盤51の天井部に縦貫された
負荷側の絶縁ブッシング46Ｆの上端に接続される第２母
線48の右端が接続されている。At the upper end of the insulating bushing 46D, the upper end of the above-mentioned insulating bushing 46C penetrating the ceiling of the primary transformer primary panel 50A and the load-side insulating bushing penetrating the ceiling of the VCT panel 51. The right end of the second bus bar 48 connected to the upper end of 46F is connected.

【００１８】また、ＶＣＴ盤51に収納されたＶＣＴ40の
電源側端子に接続された導体の上端は、ＶＣＴ盤51の天
井部の中央やや前方に縦貫された絶縁ブッシング46Ｅの
下端に接続され、ＶＣＴ40の負荷側端子に接続された導
体の上端は、ＶＣＴ盤51の天井部の中央やや後方に縦貫
された絶縁ブッシング46Ｆの下端に接続されている。The upper end of the conductor connected to the power supply side terminal of the VCT 40 housed in the VCT board 51 is connected to the lower end of an insulating bushing 46E which extends vertically in the middle of the ceiling of the VCT board 51 and slightly forward. The upper end of the conductor connected to the load-side terminal is connected to the lower end of an insulating bushing 46F which extends vertically through the center of the ceiling of the VCT board 51 and slightly behind.

【００１９】また、図13は、図11及び図12で示した１号
受電盤49Ａ及び２号受電盤49Ｂの縦断面拡大詳細図で、
右側から見た図を示す。図13において、箱体52には、中
央部と前後を仕切る略Ｕ字状の仕切り52ａが設けられ、
この仕切り52ａの前側の中央部と天井板との間にＬ字形
の仕切り52ｂが設けられ、仕切り52ａの前方にコ字状の
仕切り52ｃが設けられている。これらの仕切り52ａ，52
ｂ，52ｃの内部には、六フッ化硫黄ガスが封入されてい
る。FIG. 13 is an enlarged longitudinal sectional detail view of the first power receiving panel 49A and the second power receiving panel 49B shown in FIGS. 11 and 12.
The figure seen from the right side is shown. In FIG. 13, the box 52 is provided with a substantially U-shaped partition 52a for partitioning the central portion from the front and rear,
An L-shaped partition 52b is provided between the front central portion of the partition 52a and the ceiling plate, and a U-shaped partition 52c is provided in front of the partition 52a. These partitions 52a, 52
A sulfur hexafluoride gas is sealed in the insides of b and 52c.

【００２０】このうち、仕切り52ｃの内部には、図11で
示した真空遮断器37Ａ（37Ｂ）が収納され、この真空遮
断器37Ａ（37Ｂ）の上極は、仕切り52ａの前側の上部に
横に貫設された上部スペーサの前端に接続され、真空遮
断器37Ａ（37Ｂ）の下極は、前述した上部スペーサの下
側の仕切りに貫設された下部スペーサの前端に接続され
ている。Among them, a vacuum circuit breaker 37A (37B) shown in FIG. 11 is housed inside the partition 52c, and the upper electrode of the vacuum circuit breaker 37A (37B) The lower pole of the vacuum circuit breaker 37A (37B) is connected to the front end of a lower spacer penetrating the lower partition of the upper spacer.

【００２１】真空遮断器37Ａ（37Ｂ）の下部には、仕切
り52ｃの下側に対して、真空遮断器37Ａ（37Ｂ）の操作
機構部37ａが収納されている。仕切り52ａの前側の下部
には、一次断路器36Ａ（36Ｂ）の断路部が背面側に固定
され、この一次断路器36Ａ（36Ｂ）の上極は、下部スペ
ーサの後端に接続されている。The operation mechanism 37a of the vacuum circuit breaker 37A (37B) is housed below the partition 52c below the vacuum circuit breaker 37A (37B). The disconnecting portion of the primary disconnector 36A (36B) is fixed to the rear side below the front side of the partition 52a, and the upper pole of the primary disconnector 36A (36B) is connected to the rear end of the lower spacer.

【００２２】一次断路器36Ａ（36Ｂ）の下部には、接地
断路器35Ａ（35Ｂ）の断路部が組み込まれ、この接地断
路器35Ａ（35Ｂ）の操作機構部35ａは、仕切り52ｃの前
端下部に突設されている。The disconnecting portion of the grounding disconnector 35A (35B) is incorporated below the primary disconnecting switch 36A (36B), and the operating mechanism 35a of the grounding disconnector 35A (35B) is located below the front end of the partition 52c. It is protruding.

【００２３】一次断路器36Ａ, 36Ｂ及び接地断路器35
Ａ，35Ｂと操作機構部35ａは、箱体の側面に配置された
一点鎖線で示す操作ロッドとこれらを連結する図示しな
い傘歯車などで連結されている。Primary disconnectors 36A, 36B and ground disconnector 35
A, 35B and the operating mechanism 35a are connected by operating rods indicated by alternate long and short dash lines disposed on the side surfaces of the box and bevel gears (not shown) for connecting these.

【００２４】一次断路器36Ａ（36Ｂ）の下極は、仕切り
52ａの後部に縦に貫設されたケーブルヘッド32Ａ（32
Ｂ）の上端を経て、仕切り52ａの後端の前面に横に固定
された検電器34Ａ（34Ｂ）の前端に接続され、この検電
器（34Ａ，34Ｂ）の前端には、ケーブルヘッド32Ａ（32
Ｂ）の後側に縦に貫設された避雷器33Ａ（33Ｂ）の上端
が接続されている。The lower pole of the primary disconnector 36A (36B) is a partition
A cable head 32A (32
B), is connected to the front end of a voltage detector 34A (34B) fixed laterally to the front of the rear end of the partition 52a. The front end of the voltage detector (34A, 34B) is connected to the cable head 32A (32).
B) The upper end of a lightning arrester 33A (33B) vertically penetrating the rear side is connected.

【００２５】仕切り52ｂの底面には、二次断路器38Ａ
（38Ｂ）の断路部が固定されている。この二次断路器38
Ａ（38Ｂ）の前端は、上部スペーサの後端に接続されて
いる。仕切り52ｃの前面には、中央部のやや上方に対し
て、二次断路器38Ａ（38Ｂ）の操作機構部38ａが突設さ
れている。A secondary disconnector 38A is provided on the bottom surface of the partition 52b.
The disconnecting portion of (38B) is fixed. This secondary disconnector 38
The front end of A (38B) is connected to the rear end of the upper spacer. On the front surface of the partition 52c, an operation mechanism 38a of the secondary disconnector 38A (38B) protrudes slightly upward from the center.

【００２６】この操作機構部38ａの一点鎖線で示す操作
ロッドなどは、箱体52の側面を立ち上り、仕切り52ａの
前側上部を気密に後方に貫通し、さらに側面を下降した
後、二次断路器38Ａ（38Ｂ）の取付ベースの中央部の軸
に連結されている。An operating rod or the like indicated by a dashed line in the operating mechanism portion 38a rises on the side surface of the box 52, penetrates the upper front side of the partition 52a in a gas-tight manner, and descends on the side surface. 38A (38B) is connected to the central shaft of the mounting base.

【００２７】２号受電盤49Ｂに設置された二次断路器38
Ｂの後部には、一点鎖線で示す接地断路器39が組み込ま
れ、この接地断路器39の操作機構部は、操作機構部38ａ
の横に並設されている。Secondary disconnector 38 installed on No. 2 power receiving panel 49B
At the rear of B, a grounding disconnector 39 indicated by a dashed line is incorporated. The operating mechanism of the grounding disconnector 39 is an operating mechanism 38a.
Are arranged side by side.

【００２８】二次断路器38Ａ（38Ｂ）の上部の天井板に
は、図11及び図12で示した絶縁ブッシング46Ａ（46Ｂ）
が取付ベースを介して気密に貫設されている。これらの
絶縁ブッシング46Ａ（46Ｂ）の下端は、前述した二次断
路器38Ａ（38Ｂ）の後端に接続され、絶縁ブッシング46
Ａ（46Ｂ）の上端には、図12で示した第１母線のＡ相の
ケーブル47ａ，Ｂ相のケーブル47ｃ及びＣ相のケーブル
47ｃがそれぞれ接続されている。なお、１号変圧器一次
盤50Ａ及び２号変圧器一次盤50ＢとＶＣＴ盤51の縦断面
図は省略する。The ceiling bushing above the secondary disconnector 38A (38B) has an insulating bushing 46A (46B) shown in FIG. 11 and FIG.
Are airtightly provided through the mounting base. The lower ends of these insulating bushings 46A (46B) are connected to the rear ends of the aforementioned secondary disconnectors 38A (38B).
At the upper end of A (46B), the first bus A-phase cable 47a, the B-phase cable 47c, and the C-phase cable shown in FIG.
47c are respectively connected. The vertical sectional views of the primary transformer 50A, the primary transformer 50B, and the VCT board 51 are omitted.

【００２９】[0029]

【発明が解決しようとする課題】ところが、このように
構成されたガス絶縁金属閉鎖形スイッチギヤにおいて
は、箱体の奥行深さは、天井部に縦貫される絶縁ブッシ
ングの個数と幅で制約される。However, in the gas insulated metal closed switchgear configured as described above, the depth of the box is limited by the number and width of the insulating bushings penetrating the ceiling. You.

【００３０】その理由は、図13で示した１号受電盤49Ａ
と２号受電盤49Ｂの箱体52の天井部に縦設された絶縁ブ
ッシング46Ａ（46Ｂ）の後部に対して、図11及び図12で
示した１号変圧器一次盤50Ａ及び２号変圧器一次盤50Ｂ
とＶＣＴ盤51を結ぶケーブル用の絶縁ブッシング３相分
46Ｃ，46Ｄを取り付けるためのスペースを図12に示すよ
うに避けて設ける必要があり、この条件で１号変圧器一
次盤と２号変圧器一次盤とＶＣＴ盤51の絶縁ブッシング
の取付部を含む主回路機器の配置を決めなくてはならな
いからである。The reason is that the first power receiving panel 49A shown in FIG.
The first transformer 50A and the second transformer shown in FIGS. 11 and 12 are attached to the rear of the insulating bushing 46A (46B) vertically installed on the ceiling of the box 52 of the second power receiving board 49B. Primary 50B
Insulation bushing for cable connecting VCT board and VCT board 51
It is necessary to provide a space for mounting 46C and 46D, as shown in FIG. 12, including the mounting parts of the primary bushing of the No. 1 transformer, the primary board of the No. 2 transformer, and the insulating bushing of the VCT board 51. This is because the layout of the main circuit devices must be determined.

【００３１】そのため、１号変圧器一次盤50Ａと２号変
圧器一次盤50Ｂでは、負荷側に接続されるケーブルヘッ
ド45Ａ，45Ｂを図12に示すように前方に設け、さらにそ
の取付方向も、後方の絶縁ブッシング46Ｃ，46Ｄと直交
方向にして前後方向に占める幅を減らしているが、この
方法も、新しく開発され小形化された真空遮断器や断路
器に対応して、更に小形化を図る箱体には対応できな
い。For this reason, in the first transformer 50A and the second transformer 50B, the cable heads 45A and 45B connected to the load side are provided in the front as shown in FIG. The width occupied in the front-rear direction is made orthogonal to the rear insulating bushings 46C and 46D, but this method is further downsized to accommodate newly developed and downsized vacuum circuit breakers and disconnectors. It cannot be used for boxes.

【００３２】特に、ユーザの要求によって、ＶＣＴ盤51
が図11，図12のように中央に組み込まれなくて、左端又
は右端に隣設される場合や負荷が３バンクとなるときに
は、図12において前後方向に６列に配設されるケーブル
が９列となるので、箱体の奥行が増え、小形化を図った
ガス絶縁金属閉鎖形スイッチギヤの特長を損う。そこ
で、本発明の目的は、箱体の奥行きを減らしガス絶縁の
特長を発揮することのできるガス絶縁金属閉鎖形ガス絶
縁スイッチギヤを得ることである。In particular, at the request of the user, the VCT board 51
When the cables are not installed at the center as shown in FIGS. 11 and 12, but are installed next to the left end or the right end, or when the load has three banks, the cables arranged in six rows in the front-rear direction in FIG. Since the rows are arranged, the depth of the box body is increased, and the feature of the miniaturized gas insulated metal closed switchgear is impaired. SUMMARY OF THE INVENTION An object of the present invention is to provide a gas-insulated metal-closed gas-insulated switchgear which can reduce the depth of a box and exhibit the characteristics of gas insulation.

【００３３】[0033]

【課題を解決するための手段】請求項１に対応する発明
は、頭部の両側に形成された台形部の少なくとも一側に
ケーブルが接続される複数の絶縁ブッシングが箱体の外
壁に隣接して平行に貫挿されたガス絶縁金属閉鎖形スイ
ッチギヤにおいて、第１の絶縁ブッシングの片側の台形
部の側面と第２の絶縁ブッシングの他側の台形部の側面
を隣接させ、第２の絶縁ブッシングの片側の台形部の側
面と第３の絶縁ブッシングの他側の台形部の側面を隣接
させたことを特徴とする。According to a first aspect of the present invention, a plurality of insulating bushings to which a cable is connected on at least one side of a trapezoid formed on both sides of a head are adjacent to an outer wall of a box. In the gas-insulated metal closed switchgear inserted in parallel with each other, the side of the trapezoid on one side of the first insulating bushing and the side of the trapezoid on the other side of the second insulating bushing are adjacent to each other. The side surface of the trapezoid on one side of the bushing is adjacent to the side surface of the trapezoid on the other side of the third insulating bushing.

【００３４】また、請求項２に対応する発明は、第１の
系統の電力を受電する第１の受電盤と第２の系統の電力
を受電する第２の受電盤の負荷側に片側が接続され他側
が互いに接続される第１，第２の受電側母線連絡断路器
と、第１の受電盤の負荷側に片側が接続された第１の負
荷側母線連絡断路器と、第２の受電盤の負荷側に計器用
変成器を介して片側が接続され他側が第１の負荷側母線
断路器の負荷側と負荷側変圧器に接続される第２の負荷
側母線連絡断路器とが箱体に収納された母線連絡用のガ
ス絶縁金属閉鎖形スイッチギヤにおいて、第１の受電盤
の負荷側と第１の受電側母線連絡断路器の片側に接続さ
れる第１の絶縁ブッシング群を箱体の天井部の片側前方
に貫設し、第２の受電盤の負荷側と第２の母線連絡断路
器の片側に接続される第２の絶縁ブッシング群を箱体の
天井部の他側前方に貫設し、第１の受電盤の負荷側と第
１の負荷側母線連絡断路器の片側に接続される第３の絶
縁ブッシング群を箱体の天井部の他側後方に貫設し、計
器用変圧器に片側が接続され他側が第２の負荷側母線連
絡断路器の他側に接続される第４の絶縁ブッシング群を
箱体の天井部の他側前方に貫設したことを特徴とする。According to a second aspect of the present invention, one side is connected to a load side of a first power receiving panel for receiving the power of the first system and a second power receiving panel for receiving the power of the second system. First and second power receiving-side bus connecting / disconnecting devices, the other sides of which are connected to each other, a first load-side bus connecting / disconnecting device having one side connected to the load side of the first power receiving panel, and a second power receiving device One side is connected to the load side of the panel via a transformer for an instrument, and the other side is a load side of the first load side bus disconnector and a second load side bus connecting disconnector connected to the load side transformer. In a gas insulated metal closed switchgear for bus communication housed in a body, a first insulating bushing group connected to a load side of a first power receiving panel and one side of a first power receiving side bus connecting disconnector is provided. It penetrates one side forward of the ceiling of the body and is connected to the load side of the second power receiving panel and one side of the second busbar connecting disconnector. A second insulating bushing group extending in front of the other side of the ceiling of the box body, and a third insulating bushing connected to the load side of the first power receiving panel and one side of the first load-side bus connecting disconnector; A fourth insulated bushing group in which a bushing group extends through the other side of the ceiling part of the box body and one side is connected to the instrument transformer and the other side is connected to the other side of the second load-side bus connecting / disconnecting device. Is provided in front of the other side of the ceiling of the box body.

【００３５】また、請求項３に対応する発明のガス絶縁
金属閉鎖形スイッチギヤは、第１，第２，第３及び第４
の絶縁ブッシング群の第１相の絶縁ブッシングの片側の
台形部の側面と第２層の絶縁ブッシングの他側の台形部
を隣接し、第２相の絶縁ブッシングの片側の台形部の側
面と第３相の絶縁ブッシングの他側の台形部の側面を隣
接したことを特徴とする。Further, the gas insulated metal closed type switchgear according to the third aspect of the present invention comprises a first, a second, a third and a fourth.
The side of the trapezoid on one side of the first phase insulating bushing of the group of insulating bushings is adjacent to the side of the trapezoid on the other side of the insulating bushing of the second layer. The three-phase insulating bushing is characterized in that the side surfaces of the trapezoid on the other side are adjacent to each other.

【００３６】また、請求項４に対応する発明のガス絶縁
金属閉鎖形スイッチギヤは、第５の絶縁ブッシング群の
第２相の絶縁ブッシングを第２の絶縁ブッシング群の第
３相と第４の絶縁ブッシング群の第１相の間に設け、第
５の絶縁ブッシング群の第１相の絶縁ブッシングを第
１，第２の絶縁ブッシング群の第１相の中間部の片側に
設け、第５の絶縁ブッシング群の第３相を第３，第４の
絶縁ブッシング群の第３相の他側に設けたことを特徴と
する。Further, in the gas insulated metal closed switchgear according to the fourth aspect of the present invention, the second phase insulating bushing of the fifth insulating bushing group is connected to the third phase and the fourth phase of the second insulating bushing group. A first phase insulating bushing of a fifth insulating bushing group provided between the first phases of the insulating bushing group, and a first phase insulating bushing of the fifth phase of the first and second insulating bushing groups; The third phase of the insulating bushing group is provided on the other side of the third phase of the third and fourth insulating bushing groups.

【００３７】また、請求項５に対応する発明のガス絶縁
金属閉鎖形スイッチギヤは、箱体を前後に仕切る第１，
第２，第３の縦仕切りとこれらの縦仕切りの間を上下に
仕切る横仕切りにより、第１，第２の縦仕切りの下部に
第１のガス絶縁室を形成し第１，第２の仕切りの上部に
第２のガス絶縁室を形成し第２，第３の縦仕切りの下部
に第３のガス絶縁室を形成し、第２，第３の縦仕切りの
上部に第４のガス絶縁室を形成し、第１のガス絶縁室に
第１の受電側母線連絡断路器を収納し、第２のガス絶縁
室に第２の受電側母線連絡断路器を収納し、第３のガス
絶縁室に第１の負荷側母線連絡断路器を収納し、第４の
ガス絶縁室に第２の負荷側母線連絡断路器を収納したこ
とを特徴とする。The gas insulated metal closed switchgear of the invention according to claim 5 is provided with a first and a first partitioning the box body back and forth.
A first gas insulating chamber is formed below the first and second vertical partitions by a horizontal partition that vertically separates the second and third vertical partitions and the vertical partitions between the first and second vertical partitions. A second gas insulating chamber is formed at the upper part of the first and second gas insulating chambers, a third gas insulating chamber is formed at the lower part of the second and third vertical partitions, and a fourth gas insulating chamber is formed at the upper part of the second and third vertical partitions. And the first gas-insulated chamber houses the first power-receiving-side bus-connection disconnector, the second gas-insulated chamber houses the second power-receiving-side bus-connection disconnector, and the third gas-insulated chamber. And a second load-side bus connection disconnector housed in the fourth gas insulating chamber.

【００３８】また、請求項６に対応する発明は、第１の
系統の電力を受電し負荷側に接続される第１の絶縁ブッ
シング群が箱体の天井部に貫設された第１の受電盤と、
第２の系統の電力を受電し負荷側に接続される第２の絶
縁ブッシング群が天井部に貫設された第２の受電盤と、
第１，第２の受電盤の対向側に隣接され負荷側に給電す
る第１，第２の変圧器一次盤と、この第１，第２の変圧
器一次盤の間に隣設され箱体の天井部に貫設された第３
の絶縁ブッシング群を介して第１，第２の絶縁ブッシン
グ群と接続され内部に収納した計器用変成器と天井部に
貫設された第４の絶縁ブッシング群を介して第１，第２
の変圧器一次盤の天井部に貫設された第５，第６の絶縁
ブッシング群に接続されるＶＣＴ盤とでなるガス絶縁金
属閉鎖形スイッチギヤにおいて、第４の絶縁ブッシング
群の第１相及び第２相を第３の絶縁ブッシング群の前後
に設け、第４の絶縁ブッシング群の第２相を第３の絶縁
ブッシング群の第２相と共用とし、第５，第６の絶縁ブ
ッシング群の第２相を第１，第２の絶縁ブッシング群の
第２相と接続したことを特徴とする。According to a sixth aspect of the present invention, there is provided the first power receiving apparatus, wherein the first insulating bushing group connected to the load side and receiving the power of the first system is provided through the ceiling of the box. Board and
A second power receiving panel that receives the power of the second system and has a second insulating bushing group connected to the load side penetrated through the ceiling;
A first and a second transformer primary panel adjacent to opposite sides of the first and second power receiving panels and supplying power to a load side, and a box disposed between the first and second transformer primary panels The third penetrating the ceiling
The first and second insulating bushings are connected to the first and second insulating bushing groups through the instrument transformer housed therein and the first and second insulating bushing groups penetrating the ceiling.
And a VCT board connected to a fifth and a sixth insulating bushing group penetrating the ceiling of the transformer primary board, the first phase of the fourth insulating bushing group. And the second phase are provided before and after the third insulating bushing group, the second phase of the fourth insulating bushing group is shared with the second phase of the third insulating bushing group, and the fifth and sixth insulating bushing groups are provided. Is connected to the second phase of the first and second insulating bushing groups.

【００３９】さらに、請求項７に対応する発明のガス絶
縁金属閉鎖形スイッチギヤは、第１，第２及び第３の絶
縁ブッシング群の第１相の片側の台形部の側面と第２相
の他側の台形部の側面を隣接させ、第２相の片側の台形
部の側面と第３相の他側の台形部の側面を隣接させたこ
とを特徴とする。Furthermore, the gas insulated metal closed switchgear according to the invention according to claim 7 is characterized in that the trapezoidal portion on one side of the first phase of the first, second and third insulating bushing groups is connected to the side of the second phase. The side surface of the trapezoid on the other side is adjacent, and the side surface of the trapezoid on one side of the second phase is adjacent to the side surface of the trapezoid on the other side of the third phase.

【００４０】また、請求項８に対応する発明のガス絶縁
金属閉鎖形スイッチギヤは、箱体の上部に設けられ前端
に負荷側断路器が貫設された上部絶縁ガス室と、この上
部絶縁ガス室の下側に形成され上極が負荷側断路器の下
極に接続される受電用真空遮断器が前端上部に貫設さ
れ、この受電用真空遮断器の下側にこの受電用真空遮断
器の下極に上極が接続される電源側断路器が貫設された
下部絶縁ガス室と、上部絶縁ガス室の天井部に貫設され
下端が負荷側断路器の上極に接続され箱体に並設された
箱体に上部が接続される絶縁ブッシングとを備えたこと
を特徴とする。A gas insulated metal closed switchgear according to the invention according to claim 8 is provided in an upper insulating gas chamber provided at an upper portion of a box body and having a load-side disconnector provided at a front end thereof. A power receiving vacuum circuit breaker formed below the chamber and having an upper electrode connected to a lower electrode of the load-side disconnector is provided at an upper portion of the front end, and the power receiving vacuum circuit breaker is provided below the power receiving vacuum circuit breaker. A lower insulating gas chamber in which a power-supply disconnector is connected through the lower pole to the upper pole, and a box body penetrating through the ceiling of the upper insulating gas chamber and having a lower end connected to the upper pole of the load-side disconnector And an insulating bushing whose upper part is connected to the boxes arranged side by side.

【００４１】また、請求項９に対応する発明のガス絶縁
金属閉鎖形スイッチギヤは、箱体の中間部に形成され負
荷側の変圧器に接続されるケーブルヘッドが天井部に貫
設され前端に負荷側真空遮断器が貫設されたガス絶縁遮
断器室と、このガス絶縁遮断器室の後部と下部に形成さ
れ上極が負荷側真空遮断器の下極に接続される断路器が
前端に貫設され、この断路器の下極が下端に接続され箱
体に並設された箱体に上部が接続される絶縁ブッシング
が天井部に貫設されたガス絶縁断路器室とを備えたこと
を特徴とする。According to a ninth aspect of the present invention, there is provided a gas insulated metal closed switchgear, wherein a cable head formed at an intermediate portion of the box body and connected to a transformer on a load side is penetrated through a ceiling portion and is provided at a front end. A gas-insulated circuit breaker chamber through which the load-side vacuum circuit breaker is passed, and a disconnector formed at the rear and lower portions of the gas-insulated circuit breaker chamber and having an upper electrode connected to a lower electrode of the load-side vacuum circuit breaker at the front end. A gas insulated disconnector chamber having a lower pole connected to the lower end of the disconnector connected to the lower end and an upper part connected to the box arranged side by side with the box, and an insulating bushing penetrated through the ceiling; It is characterized by.

【００４２】さらに、請求項10に対応する発明のガス絶
縁金属閉鎖形スイッチギヤは、天井部に絶縁ブッシング
が貫設されこの絶縁ブッシングの下端に上極が接続され
る断路器が前端に貫設され絶縁ガスが封入された断路器
室と、この断路器室の下部と後部に形成され断路器の下
極に上極が接続される負荷側真空遮断器が前端に貫設さ
れこの負荷側真空遮断器の下極に下端が接続され上部が
負荷側の変圧器に接続されるケーブルヘッドが天井部に
貫設され絶縁ガスが封入された遮断器室とを備えたこと
を特徴とする。このような手段によって、本発明のガス
絶縁金属閉鎖形スイッチギヤにおいては、絶縁ブッシン
グが箱体の外壁や天井部に占める占有面積を減らす。Further, in the gas-insulated metal closed switchgear according to the tenth aspect of the present invention, an insulating bushing extends through the ceiling, and a disconnector having an upper pole connected to the lower end of the insulating bushing extends through the front end. A disconnector chamber filled with insulating gas and a load-side vacuum circuit breaker formed at the lower and rear portions of the disconnector chamber and connected to the lower pole of the disconnector and having an upper pole connected to the front end thereof. A cable head having a lower end connected to the lower pole of the circuit breaker and an upper side connected to the transformer on the load side is provided with a circuit breaker chamber penetrating through the ceiling and filled with insulating gas. By such means, in the gas insulated metal closed switchgear of the present invention, the area occupied by the insulating bushing on the outer wall and ceiling of the box is reduced.

【００４３】[0043]

【発明の実施の形態】以下、本発明のガス絶縁金属閉鎖
形スイッチギヤの一実施形態を図面を参照して説明す
る。図１は、本発明のガス絶縁金属閉鎖形スイッチギヤ
の第１の実施形態を示す平面図で、請求項１乃至請求項
４に対応し、従来の技術で示した図12に対応する図であ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the gas-insulated metal switchgear of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a first embodiment of a gas insulated metal closed switchgear according to the present invention, which corresponds to claims 1 to 4 and corresponds to FIG. 12 shown in the prior art. is there.

【００４４】但し、後述する図３で示すように負荷側が
３バンク（変圧器）で、列盤の中間部に対して、図１の
Ａ−Ａ断面図を示す図２の母線連絡盤３と詳細は図示し
ない断路器盤が組み込まれており、その結果、各箱体の
内部の機器を各箱体の天井部で接続するケーブルと絶縁
ブッシングの数が増えて錯綜している。However, as shown in FIG. 3, which will be described later, the load side has three banks (transformers), and the bus bar connecting board 3 shown in FIG. A disconnecting switchboard (not shown) is incorporated in detail, and as a result, the number of cables and insulating bushes connecting the equipment inside each box at the ceiling of each box increases, and the numbers are complicated.

【００４５】また、図３は、図１で示した受電設備の主
回路単線結線図で、図４は、図３で示した主回路機器が
図１で示した各箱に分散収納された状態を示す主回路単
線結線配置図で、従来の技術で示した図11に対応する。FIG. 3 is a single-line diagram of the main circuit of the power receiving equipment shown in FIG. 1, and FIG. 4 is a state in which the main circuit devices shown in FIG. 3 are distributed and stored in the respective boxes shown in FIG. Is a main circuit single line connection layout diagram corresponding to FIG. 11 shown in the related art.

【００４６】まず、図１において、後列の右端に示した
間口幅の広いＶＣＴ盤１の左側には、２号変圧器一次盤
２Ｂが隣設され、ＶＣＴ盤１の右側にも、紙面の制約上
ＶＣＴ盤１の前方に示した３号変圧器一次盤２Ｃが隣設
されている。First, in FIG. 1, on the left side of the wide-width VCT panel 1 shown at the right end of the rear row, a No. 2 transformer primary panel 2B is provided next to the VCT panel 1, and also on the right side of the VCT panel 1 due to space restrictions. A No. 3 transformer primary panel 2C shown in front of the upper VCT panel 1 is adjacently provided.

【００４７】このうち、左側の２号変圧器一次盤２Ｂの
更に左側には、図２で詳細後述する間口幅の広い母線連
絡盤３が隣設され、この母線連絡盤３の左側には、図３
及び図４で後述する断路器盤４が隣設されている。On the left side of the left-side No. 2 transformer primary panel 2B, a bus bar 3 having a wide width, which will be described in detail later with reference to FIG. FIG.
A disconnecting switchboard 4, which will be described later with reference to FIG.

【００４８】この断路器盤４の左側には、１号変圧器一
次盤２Ａが隣設され、この１号変圧器一次盤２Ａの左側
には、片側の系統に接続される受電盤６Ａが隣接され、
前述した３号変圧器一次盤２Ｃの右側には、他側の異な
る系統の電源に接続される受電盤６Ｂが隣設されてい
る。On the left side of the disconnecting switchboard 4, a primary transformer primary panel 2 A is provided adjacently, and on the left side of the primary transformer primary board 2 A, a power receiving panel 6 A connected to one system is adjacent. And
On the right side of the above-mentioned No. 3 transformer primary panel 2C, a power receiving panel 6B connected to a power supply of a different system on the other side is provided adjacently.

【００４９】このうち、左側の受電盤６Ａの天井部に
は、図１のＢ−Ｂ断面拡大図を示す図６で後述するよう
に、断路器盤４と母線連絡盤３に接続される第１母線の
片側を構成するＡ相ケーブル11Ａ，Ｂ相ケーブル11Ｂと
Ｃ相ケーブル11Ｃを介して接続される接続端子としての
絶縁ブッシング７Ａ，７Ｂ，７Ｃが、詳細を図５で詳述
するように平面図では千鳥状に縦貫されている。Among them, on the ceiling of the left power receiving panel 6A, as will be described later with reference to FIG. 6, which is an enlarged sectional view taken along the line BB of FIG. As shown in FIG. 5, insulating bushings 7A, 7B, 7C as connection terminals connected via A-phase cables 11A, B-phase cables 11B and C-phase cables 11C, which constitute one side of one bus, will be described in detail. In the plan view, it runs in a zigzag pattern.

【００５０】受電盤６Ａの右側の１号変圧器一次盤２Ａ
の天井部の前端には、負荷側の図示しない降圧変圧器に
接続されるケーブルヘッド10Ａ，10Ｂ，10Ｃが従来の技
術で示した図12と同様に貫設され、天井部の後部には、
右側に隣設された断路器盤４に接続される絶縁ブッシン
グ８Ａ，８Ｂ，８Ｃが左側の絶縁ブッシング７Ａ，７
Ｂ，７Ｃと同様に千鳥状に貫設されている。No. 1 transformer primary panel 2A on the right side of power receiving panel 6A
Cable heads 10A, 10B and 10C connected to a step-down transformer (not shown) on the load side are penetrated at the front end of the ceiling part in the same manner as in FIG.
The insulating bushings 8A, 8B, 8C connected to the disconnecting switchboard 4 provided on the right side are the insulating bushings 7A, 7 on the left side.
As in B and 7C, they are provided in a staggered manner.

【００５１】この１号変圧器一次盤２Ａの右側に隣設さ
れた断路器盤４の天井部には、前述したＡ相ケーブル11
Ａ，Ｂ相ケーブル11Ｂ，Ｃ相ケーブル11Ｃの右端に左端
が接続される絶縁ブッシング７Ｄ，７Ｅ，７Ｆが前方に
千鳥状に貫設されている。The above-mentioned A-phase cable 11 is attached to the ceiling of the disconnecting switchboard 4 adjacent to the right side of the first transformer primary board 2A.
Insulating bushings 7D, 7E, 7F to which the left ends are connected to the right ends of the A, B phase cables 11B, C phase cables 11C are provided in a staggered manner in the front.

【００５２】これらの絶縁ブッシング７Ｄ，７Ｅ，７Ｆ
の後方には、前述した１号変圧器一次盤２Ａの天井部に
貫設された絶縁ブッシング８Ａ，８Ｂ，８Ｃに左端がケ
ーブル12Ａ，12Ｂ，12Ｃで接続される絶縁ブッシング８
Ｄ，８Ｅ，８Ｆが、同じく千鳥状に貫設されている。These insulating bushings 7D, 7E, 7F
Behind, a left end is connected to the insulating bushings 8A, 8B, 8C penetrating the ceiling of the above-mentioned No. 1 transformer primary panel 2A by cables 12A, 12B, 12C.
D, 8E and 8F are also provided in a staggered manner.

【００５３】また、母線連絡盤３の天井部には、左側の
中間部から前方に対して、左側の断路器盤４の絶縁ブッ
シング７Ｄ，７Ｅ，７Ｆに左端がケーブルで接続される
絶縁ブッシング７Ｇ，７Ｈ，７Ｊが千鳥状に貫設されて
いる。In addition, an insulating bushing 7G whose left end is connected to the insulating bushing 7D, 7E, 7F of the left disconnecting switchboard 4 by a cable is provided on the ceiling of the busbar connecting panel 3 from the left intermediate portion to the front. , 7H, 7J are provided in a zigzag pattern.

【００５４】これらの絶縁ブッシング７Ｇ，７Ｈ，７Ｊ
の後方には、同じく左側の絶縁ブッシング８Ｄ，８Ｅ，
８Ｆの右端に左端がケーブル12Ｄ，12Ｅ，12Ｆで接続さ
れる絶縁ブッシング８Ｇ，８Ｈ，８Ｊが貫設されてい
る。These insulating bushings 7G, 7H, 7J
Behind the same, the left insulating bushing 8D, 8E,
Insulating bushings 8G, 8H, 8J whose left ends are connected by cables 12D, 12E, 12F extend through the right end of 8F.

【００５５】さらに、絶縁ブッシング７Ｇ，７Ｈ，７Ｊ
の右側には、絶縁ブッシング７Ｋ，７Ｌ，７Ｍが貫設さ
れ、これらの絶縁ブッシング７Ｋ，７Ｌ，７Ｍの後方に
は、絶縁ブッシング８Ｋ，８Ｌ，８Ｍが貫設されてい
る。Further, insulating bushings 7G, 7H, 7J
Insulating bushings 7K, 7L, and 7M are provided on the right side, and insulating bushings 8K, 8L, and 8M are provided behind these insulating bushes 7K, 7L, and 7M.

【００５６】左右の二組の絶縁ブッシング群の間には、
右側の２号変圧器一次盤２Ｂの天井部の後述する絶縁ブ
ッシング間を接続する第３母線を構成するケーブルのう
ちの、Ａ相ケーブル13Ａの左端が右端に接続される絶縁
ブッシング９Ａが前方に貫設されている。Between the two sets of left and right insulating bushings,
Among the cables constituting the third busbar connecting the below-described insulating bushings on the ceiling of the No. 2 transformer primary panel 2B, the insulating bushing 9A in which the left end of the A-phase cable 13A is connected to the right end is located forward. It is penetrated.

【００５７】この絶縁ブッシング９Ａの後方には、同じ
くＢ相ケーブル13Ｂの左端が右端に接続される絶縁ブッ
シング９Ｂが間隔をあけて天井部のほぼ中央に貫設さ
れ、この後方には、Ｃ相ケーブル13Ｃの左端が右端に接
続される絶縁ブッシング９Ｃが後端に貫設されている。Behind the insulating bushing 9A, an insulating bushing 9B, which is also connected to the left end of the B-phase cable 13B at the right end, is provided at substantially the center of the ceiling with an interval. An insulating bushing 9C is formed at the rear end of the cable 13C. The left end of the cable 13C is connected to the right end.

【００５８】一方、２号変圧器一次盤２Ｂの天井部の前
端にも、図３で示す２号変圧器の一次側に前端が接続さ
れるケーブルヘッド10Ｄ，10Ｅ，10Ｆが左側の１号変圧
器一次盤２Ａと同様に貫設されている。On the other hand, cable heads 10D, 10E, and 10F whose front ends are connected to the primary side of the No. 2 transformer shown in FIG. 3 are also connected to the No. 1 transformer on the left side at the front end of the ceiling of the No. 2 transformer primary panel 2B. It is penetrated similarly to the container primary panel 2A.

【００５９】これらのケーブルヘッド10Ｄ，10Ｅ，10Ｆ
の後方には、前述したＡ相ケーブル13Ａ，13Ｂ，13Ｃを
介して、絶縁ブッシング９Ａ，９Ｂ，９Ｃの右端に接続
される絶縁ブッシング９Ｄ，９Ｅ，９Ｆが、左側の絶縁
ブッシング９Ａ，９Ｂ，９Ｃと同一間隔で千鳥状に貫設
されている。These cable heads 10D, 10E, 10F
Are connected to the right ends of the insulating bushings 9A, 9B, 9C via the above-mentioned A-phase cables 13A, 13B, 13C, and the left insulating bushings 9A, 9B, 9C are connected to the left side. It is provided in a zigzag pattern at the same interval as.

【００６０】さらに、ＶＣＴ盤１の天井部には、母線連
絡盤３の天井部の右前方に貫設された絶縁ブッシング７
Ｋ，７Ｌ，７Ｍの右端に対して、第１母線の一部を構成
するケーブル11Ｄ，11Ｅ，11Ｆを介して接続される絶縁
ブッシング７Ｎ，７Ｏ，７Ｐが貫設されている。Further, an insulating bushing 7 is provided on the ceiling of the VCT panel 1 at the right front of the ceiling of the busbar connecting panel 3.
Insulating bushings 7N, 7O, 7P connected through cables 11D, 11E, 11F constituting a part of the first bus are penetrated to the right ends of K, 7L, 7M.

【００６１】これらの絶縁ブッシング７Ｎ，７Ｏ，７Ｐ
の右側の後方には、絶縁ブッシング８Ｎ，８Ｏ，８Ｐが
貫設され、これらの絶縁ブッシング８Ｎ，８Ｏ，８Ｐの
左端は、第２母線の他側を構成するケーブル12Ｇ，12
Ｈ，12Ｊを介して、母線連絡盤３の天井部の右側後方に
貫設された絶縁ブッシング８Ｋ，８Ｌ，８Ｍの右端に接
続されている。These insulating bushings 7N, 7O, 7P
Insulating bushings 8N, 8O, 8P are provided through the right side of the rear side, and the left ends of these insulating bushings 8N, 8O, 8P are connected to the cables 12G, 12
Through H, 12J, it is connected to the right end of the insulating bushings 8K, 8L, 8M penetrating the right rear part of the ceiling of the busbar communication panel 3.

【００６２】このうち、前方の絶縁ブッシング７Ｎ，７
Ｏ，７Ｐの右端に接続された第１母線の右端を構成する
ケーブル11Ｈ，11Ｊ，11Ｋの右端は、ＶＣＴ盤１の右側
に隣設された３号変圧器一次盤２Ｃの更に右側に隣設さ
れた２号系の受電盤６Ｂの天井部に貫設された絶縁ブッ
シング７Ｑ，７Ｒ，７Ｓの左端に接続されている。Of these, the front insulating bushings 7N, 7N
The right ends of the cables 11H, 11J, and 11K constituting the right end of the first bus bar connected to the right ends of the O and 7P are further provided on the right side of the primary transformer 2C of the No. 3 transformer provided on the right side of the VCT board 1. Insulated bushings 7Q, 7R, 7S penetrated through the ceiling of the power receiving panel 6B of the second system.

【００６３】同じく、後方の絶縁ブッシング８Ｎ，８
Ｏ，８Ｐの右端に接続されたケーブルの右端は、ＶＣＴ
盤１の右側に隣設された３号変圧器一次盤２Ｃの天井部
の後方に貫設された絶縁ブッシング８Ｑ，８Ｒ，８Ｓの
左端に接続されている。Similarly, the rear insulating bushings 8N, 8
The right end of the cable connected to the right end of O, 8P is VCT
It is connected to the left ends of insulating bushings 8Q, 8R, 8S that are provided behind the ceiling of the No. 3 transformer primary board 2C adjacent to the right side of the board 1.

【００６４】この結果、母線連絡盤３の天井部には、合
計５群（合計15個）の絶縁ブッシングが、ケーブルの配
置と接続が可能なように、前後方向に隣接して貫設さ
れ、前後方向には、以下説明する図２のように９列の配
置となっている。As a result, a total of five (15 in total) insulating bushings are penetrated in the ceiling of the busbar communication panel 3 so as to be adjacent to each other in the front-rear direction so as to be able to arrange and connect the cables. In the front-rear direction, nine rows are arranged as shown in FIG. 2 described below.

【００６５】図２は、母線連絡盤３の天井部に貫設され
た絶縁ブッシングと、箱体の内部の主回路機器の配置を
示す図１のＡ−Ａ縦断面拡大図である。図２において、
この母線連絡盤３の箱体22には、中央部に対して縦に仕
切り22ｂが設けられ、この仕切り22ｂの前方に仕切り22
ａが、仕切り22ｂの後方に仕切り22ｃが縦設されてい
る。これらの仕切り22ａ，22ｂ，22ｃの中間部には、横
の仕切り22ｆが仕切り22ａ，22ｂ間に、仕切り22ｇが仕
切り22ｂ，22ｃ間にそれぞれ横設されている。FIG. 2 is an enlarged longitudinal sectional view taken along the line AA of FIG. 1 showing the arrangement of the insulating bushing penetrating the ceiling of the busbar communication panel 3 and the main circuit equipment inside the box. In FIG.
The box 22 of the busbar 3 is provided with a vertical partition 22b with respect to the center, and a partition 22b is provided in front of the partition 22b.
a, a partition 22c is provided vertically behind the partition 22b. In the middle of these partitions 22a, 22b and 22c, a horizontal partition 22f is provided between the partitions 22a and 22b, and a partition 22g is provided between the partitions 22b and 22c.

【００６６】このうち、仕切り22ａ，22ｂ，22ｆで囲ま
れたガス絶縁室には、図３及び図４で後述する断路器14
Ａの断路部が断路器14Ａの上部に組み込まれた接地断路
器14ａとともに収納され、仕切り22ｂ，22ｃ，22ｇで囲
まれたガス室には、同じく断路器14Ｂの断路部が接地断
路器14ｂとともに対称的に収納されている。これらの断
路器14Ａ，14Ｂの下側にも、上極がスペーサ22ｈ，22ｊ
に接続される断路器14Ｃ，14Ｄの断路部が収納されてい
る。The gas insulation chamber surrounded by the partitions 22a, 22b and 22f has a disconnector 14 described later with reference to FIGS.
The disconnecting portion of A is housed together with the grounding disconnector 14a incorporated above the disconnector 14A, and the gas chamber surrounded by the partitions 22b, 22c and 22g also has the disconnecting portion of the disconnector 14B together with the grounding disconnector 14b. It is stored symmetrically. On the lower side of these disconnectors 14A, 14B, the upper poles are also spacers 22h, 22j.
The disconnecting portions of the disconnecting devices 14C and 14D connected to are connected.

【００６７】このうち、左側の断路器14Ａ，14Ｃの左側
に形成された低圧室には、これらの断路器及び接地断路
器の操作機構部が組み込まれ、同じく右側の断路器14
Ｂ，14Ｄの右側に形成された低圧室にも操作機構部が組
み込まれている。Of these, the low pressure chamber formed on the left side of the left disconnectors 14A and 14C incorporates the operating mechanisms of these disconnectors and the ground disconnector, and also includes the right disconnectors 14A and 14C.
An operating mechanism is also incorporated in the low-pressure chamber formed on the right side of B and 14D.

【００６８】仕切り22ｆ，22ｇの対向側には、上端が断
路器14Ａ，14Ｂの下極に接続されるスペーサ22ｈ，22ｊ
が対称的に貫設され、これらのスペーサ22ｈ，22ｊの下
端は、仕切り22ｆ，22ｇの下側に形成されたガス室に収
納された断路器14Ｃ，14Ｄの上部の接地断路器14ｃ，14
ｄにそれぞれ接続されている。On opposite sides of the partitions 22f and 22g, spacers 22h and 22j whose upper ends are connected to lower poles of the disconnectors 14A and 14B.
The spacers 22h and 22j have lower ends connected to the grounding disconnectors 14c and 14D above the disconnectors 14C and 14D housed in gas chambers formed below the partitions 22f and 22g.
d.

【００６９】さらに、天井板には、前側の断路器室の上
方に対して、図１で示した絶縁ブッシング７Ｋ，７Ｌ，
７Ｍが縦貫され、これらの絶縁ブッシング７Ｋ，７Ｌ，
７Ｍの右側に対して、同じく図１で示した絶縁ブッシン
グ８Ｋ，８Ｌ，８Ｍが縦貫されている。Further, the insulating bushings 7K, 7L, shown in FIG.
7M are pierced and these insulating bushings 7K, 7L,
Insulating bushings 8K, 8L, 8M also shown in FIG. 1 extend through the right side of 7M.

【００７０】さらに、これらの絶縁ブッシングの前端に
は、図１の母線連絡盤３の中央部前端に示した絶縁ブッ
シング９Ａとケーブル13Ａが示され、同じく、天井板の
中央部には、絶縁ブッシング９Ｂとケーブル13Ｂが示さ
れ、天井板の後端には、絶縁ブッシング９Ｃとケーブル
13Ｃが示されている。Further, at the front end of these insulating bushings, there are shown an insulating bushing 9A and a cable 13A shown at the front end of the central part of the bus bar 3 in FIG. 9B and a cable 13B are shown, and an insulating bushing 9C and a cable are provided at the rear end of the ceiling panel.
13C is shown.

【００７１】このうち、絶縁ブッシング７Ｋ，７Ｌ，７
Ｍの下端に接続された導体は、接地断路器14ａの後端に
接続され、絶縁ブッシング８Ｋ，８Ｌ，８Ｍの下端に接
続された導体は、接地断路器14ｂの前端に接続されてい
る。The insulating bushings 7K, 7L, 7
The conductor connected to the lower end of M is connected to the rear end of the grounding disconnector 14a, and the conductor connected to the lower ends of the insulating bushings 8K, 8L, 8M is connected to the front end of the grounding disconnector 14b.

【００７２】同じく、断路器14Ｃの後端に接続された導
体は、箱体の底板に固定されたがいしを介して紙面直交
方向に配設された後、箱体の左側面を立ち上って、天井
板に貫設された絶縁ブッシング７Ｇ，７Ｈ，７Ｊの下端
に接続されている。Similarly, the conductor connected to the rear end of the disconnecting switch 14C is disposed in a direction perpendicular to the plane of the drawing via an insulator fixed to the bottom plate of the box, and then rises on the left side of the box to form a ceiling. It is connected to the lower ends of insulating bushings 7G, 7H, 7J penetrating the plate.

【００７３】同様に、断路器14Ｄの下端の前端に接続さ
れた導体は、この下方の底板に固定されたがいしを介し
て紙面直交方向に配設された後、箱体の左側面を立ち上
って、天井板に貫設された絶縁ブッシング８Ｇ，８Ｈ，
８Ｊの下端に接続されている。Similarly, the conductor connected to the front end of the lower end of the disconnector 14D is disposed in a direction perpendicular to the plane of the drawing via an insulator fixed to the lower bottom plate, and then rises on the left side of the box. , Insulating bushings 8G, 8H,
8J is connected to the lower end.

【００７４】また、仕切り22ｇに貫設された絶縁スペー
サ22ｊから下側の接地断路器14ｄの前端に接続される導
体は、中間部を固定したがいしで分岐して、紙面直交方
向に配設された後、天井部に貫設された絶縁ブッシング
９Ａ，９Ｂ，９Ｃに接続されている。天井部には、図示
しないダクトカバーが取り付けられ、天井部に貫設され
た各絶縁ブッシングやケーブルヘッドは、ダクトカバー
で覆われている。The conductor connected from the insulating spacer 22j penetrating through the partition 22g to the front end of the lower grounding disconnector 14d branches off with a fixed insulator at the middle part and is disposed in the direction perpendicular to the plane of the paper. After that, it is connected to insulating bushings 9A, 9B, 9C penetrating the ceiling. A duct cover (not shown) is attached to the ceiling, and each of the insulating bushings and cable heads penetrating the ceiling are covered with the duct cover.

【００７５】図３は、図１及び図２で示したガス絶縁金
属閉鎖形スイッチギヤの主回路単線結線図を示し、図４
は、図３で示した主回路機器が図１で示した箱体に分散
収納された状態を示す主回路配置単線結線配置図を示
し、従来の技術で示した図11に対応する。FIG. 3 shows a single-line diagram of the main circuit of the gas insulated metal closed switchgear shown in FIGS. 1 and 2 and FIG.
3 shows a main circuit arrangement single-wire connection arrangement diagram showing a state in which the main circuit devices shown in FIG. 3 are dispersed and housed in the box shown in FIG. 1, and corresponds to FIG. 11 shown in the prior art.

【００７６】図３で示すように、このガス絶縁金属閉鎖
形スイッチギヤは、二つの系統から受電し３台の変圧器
で降圧して負荷に電力を供給する、特別高圧受電設備の
場合を示している。As shown in FIG. 3, this gas insulated metal closed switchgear is a special high-voltage power receiving equipment in which power is received from two systems and stepped down by three transformers to supply power to a load. ing.

【００７７】このうち、図３の左側後方の変流器（Ｃ
Ｔ）から、符号７Ａ，Ｂ，Ｃで示す絶縁ブッシングまで
の器具が、左側の接地断路器を含めて図１で示した１号
受電盤６に収納され、符号７Ａ，Ｂ，Ｃは、図１の天井
部に貫設された絶縁ブッシング７Ａ，７Ｂ，７Ｃを示
す。Of these, the current transformer (C
T) to the insulating bushings indicated by reference numerals 7A, B and C are housed in the No. 1 power receiving panel 6 shown in FIG. 1 including the grounding disconnector on the left side. 1 shows an insulating bushing 7A, 7B, 7C penetrating the ceiling portion of FIG.

【００７８】また、図３の右側後方の変流器（ＣＴ）か
ら符号７Ｑ，Ｒ，Ｓで示す絶縁ブッシングとこの右側の
接地断路器までの器具は、図１で先述した２号受電盤６
Ｂに収納される器具を示す。The components from the current transformer (CT) on the right rear side in FIG. 3 to the insulating bushings indicated by reference numerals 7Q, R and S and the grounding disconnector on the right side are the No. 2 power receiving board 6 described in FIG.
3 shows the instruments stored in B.

【００７９】以下、図３の左側に示した絶縁ブッシング
７Ａ，７Ｂ，７Ｃの負荷側に示した符号７Ｄ，Ｅ，Ｆと
符号８Ｄ，Ｅ，Ｆは、図１で示した断路器盤４の天井部
に縦貫された絶縁ブッシングを示す。Hereinafter, reference numerals 7D, E, F and 8D, E, F shown on the load side of the insulating bushings 7A, 7B, 7C shown on the left side of FIG. 3 denote the disconnecting switchboard 4 shown in FIG. The insulating bushing penetrated the ceiling part is shown.

【００８０】また、図３において、符号７Ｇ…，８Ｊ
…，９Ａ…も、図４に示すように、各箱体の天井部に縦
貫された絶縁ブッシングを示すが、これらの絶縁ブッシ
ングを介して互いに接続される他の主回路器具を含めて
説明は省略する。In FIG. 3, reference numerals 7G...
, 9A, as shown in FIG. 4, show insulating bushings penetrating the ceiling of each box body. The description including other main circuit devices connected to each other via these insulating bushings will be omitted. Omitted.

【００８１】図４において、母線連絡盤３の天井部に
は、左右の箱体にケーブルで接続される絶縁ブッシング
が、図１でも示したように合計５群貫設されている。こ
の受電設備では、この母線連絡盤３の天井部における絶
縁ブッシングが最も多くなっている。In FIG. 4, on the ceiling of the bus bar 3, there are provided a total of five insulating bushings connected to the left and right boxes by cables, as shown in FIG. In this power receiving facility, the number of insulating bushings on the ceiling of the bus bar 3 is the largest.

【００８２】次に、図５は、図１で示したように各箱体
の天井部に縦貫された絶縁ブッシングのうち、両側にケ
ーブルが接続されたＶＣＴ盤の絶縁ブッシング７Ｎ，７
Ｏ，７Ｐなどのように、密着して配置された各相間の取
付間隔などを示す拡大詳細図で、他の箱体の天井部に密
着して貫設された各群の絶縁ブッシングも同一間隔であ
る。Next, FIG. 5 shows the insulating bushings 7N, 7 of the VCT panel to which cables are connected on both sides, among the insulating bushings penetrating the ceiling of each box as shown in FIG.
Enlarged detailed view showing the mounting interval between each closely arranged phase, such as O, 7P, etc., wherein the insulating bushings of each group penetrating closely to the ceiling of another box are also at the same interval. It is.

【００８３】すなわち、Ｒ相，Ｓ相，Ｔ相で１群となる
絶縁ブッシング７Ｎ，７Ｏ，７Ｐは、各相間の取付間隔
Ｐ１が、各絶縁ブッシング７Ｎ，７Ｏ，７Ｐの頭部７ａ
の最大幅Ｗよりも僅かに狭くなっている。That is, the insulating bushings 7N, 7O, and 7P, which form a group of the R, S, and T phases, have a mounting interval P1 between the phases, the head 7a of each of the insulating bushings 7N, 7O, and 7P.
Is slightly narrower than the maximum width W.

【００８４】そのため、各相の絶縁ブッシング７Ｎ，７
Ｏ，７Ｐの長手方向（図５においては左右方向）の取付
間隔Ｐ２は、各絶縁ブッシング７Ｎ，７Ｏ，７Ｐの頭部
７ａの長さＬと比べて短くなっている。Therefore, the insulating bushings 7N, 7
The mounting interval P2 in the longitudinal direction of O and 7P (the horizontal direction in FIG. 5) is shorter than the length L of the head 7a of each of the insulating bushings 7N, 7O and 7P.

【００８５】なお、頭部７ａは、内部の中心に埋め込ま
れた図示しない中心導体の外周に対してエポキシ樹脂に
よる絶縁層が形成され、この絶縁層の両端は、台形状と
なっていて、この外面側に対して、ケーブルの接続押え
金具11ａのフランジ部がボルトで締め付けられている。The head 7a has an insulating layer made of epoxy resin formed around the center conductor (not shown) embedded in the center of the inside, and both ends of the insulating layer are trapezoidal. The flange portion of the cable connection holding member 11a is tightened with a bolt to the outer surface side.

【００８６】各絶縁ブッシング７Ｎ，７Ｏ，７Ｐは、前
述した台形状の部分において、図５の左右方向で重なっ
ている。したがって、ケーブル接続押え金具11ａの筒部
の外周と隣接した絶縁ブッシングの頭部側面との間に
は、絶縁ブッシングを箱体の天井部に固定する図示しな
い固定金具を締め付ける工具を挿入するだけの僅かな間
隙が形成されている。なお、頭部７ａの表面には、接地
層が形成され、各絶縁ブッシングの頭部の外面は、箱体
の天井部と同様に接地電位となっている。Each of the insulating bushings 7N, 7O, 7P overlaps in the left-right direction in FIG. Therefore, between the outer periphery of the cylindrical portion of the cable connection holding bracket 11a and the side surface of the head of the adjacent insulating bushing, only a tool for fastening a fixing bracket (not shown) for fixing the insulating bushing to the ceiling of the box is required. A slight gap is formed. Note that a ground layer is formed on the surface of the head 7a, and the outer surface of the head of each insulating bushing is at the ground potential similarly to the ceiling of the box.

【００８７】このように３相分の絶縁ブッシングを長手
方向と幅方向に密着させて天井部に貫設させたガス絶縁
金属閉鎖形スイッチギヤにおいては、従来のガス絶縁金
属閉鎖形スイッチギヤのＰ２≧Ｌ，Ｐ１≧Ｗの間隔に絶
縁ブッシングが配置された天井部に比べて、箱体の奥行
きと間口幅を減らすことができるので、受変電設備の設
置床面積を減らすことができる。As described above, in a gas insulated metal closed switchgear in which three phases of insulating bushings are closely attached in the longitudinal and width directions and penetrated through the ceiling, the conventional gas insulated metal closed switchgear P2 Since the depth and width of the box can be reduced as compared with the ceiling in which the insulating bushings are arranged at intervals of ≧ L, P1 ≧ W, the installation floor area of the power receiving and transforming equipment can be reduced.

【００８８】また、図１に示した間口幅の広い母線連絡
盤３においては、左右前後の４群の絶縁ブッシングの間
に対して、１群の絶縁ブッシングを貫設し、これらの絶
縁ブッシングに接続されるケーブル13Ａ，13Ｂ，13Ｃ
は、前後の二組の絶縁ブッシングの前後端と中央部の間
に配設することで、合計５群の絶縁ブッシングを最小限
のスペースに配置するとともに、左右に隣設された断路
器盤４と２号変圧器一次盤２とのケーブル接続も行うこ
とができる。In the bus bar 3 having a wide frontage shown in FIG. 1, one group of insulating bushings is provided between the four groups of insulating bushings on the left, right, front and rear sides. Cables 13A, 13B, 13C to be connected
Is arranged between the front and rear ends of the two front and rear insulation bushings and the center, so that a total of five groups of insulation bushings are arranged in the minimum space, and the disconnecting switchboards 4 adjacently arranged on the left and right sides. Cable connection between the power supply and the No. 2 transformer primary panel 2 can also be performed.

【００８９】また、受電盤６の天井部の上方からＶＣＴ
盤１の天井部の上方に配設された各ケーブルは、ケーブ
ル13Ａ，13Ｂ，13Ｃを除いて、各群の各３相間において
長さを等しくすることができるので、各絶縁ブッシング
を含めて互換性があり、組立が容易となる。Also, the VCT from above the ceiling of the power receiving panel 6
Except for the cables 13A, 13B, and 13C, each cable disposed above the ceiling of the panel 1 can be made equal in length among the three phases of each group. And easy to assemble.

【００９０】また、母線連絡盤３の中央部に前後に貫設
した絶縁ブッシング９Ａ，９Ｂ，９Ｃは、右側の２号変
圧器一次盤２の絶縁ブッシング９Ｄ，９Ｅ，９Ｆと同様
に千鳥状とするか、又は、絶縁ブッシング９Ｄ，９Ｅ，
９Ｆの配置を、左側の絶縁ブッシング９Ａ，９Ｂ，９Ｃ
と同様に天井部の中央に一列に配置することで、ケーブ
ル13Ａ，13Ｂ，13Ｃの長さも揃えることができる。The insulating bushings 9A, 9B, 9C penetrating in the front and rear at the center of the bus bar 3 are staggered similarly to the insulating bushings 9D, 9E, 9F of the right No. 2 transformer primary panel 2. Or insulating bushings 9D, 9E,
9F is arranged on the left insulating bushing 9A, 9B, 9C.
By arranging them in a line in the center of the ceiling in the same manner as in the above, the lengths of the cables 13A, 13B, and 13C can be made uniform.

【００９１】次に、図６は、図１左端に設置された受電
盤６ＡのＢ−Ｂ断面拡大図を示し、天井部に貫設した絶
縁ブッシングのうち、破線で示した絶縁ブッシングは、
図１と異なる仕様の受電設備において、受電盤が列盤の
中間部に配置された場合を示す。Next, FIG. 6 is an enlarged cross-sectional view taken along the line BB of the power receiving panel 6A installed at the left end of FIG. 1. Among the insulating bushes penetrating the ceiling, the insulating bushings indicated by broken lines are:
1 shows a case in which a power receiving panel is arranged in an intermediate portion of a row board in power receiving equipment having a specification different from that in FIG. 1.

【００９２】図６において、箱体18の上部には、Ｕ字状
の仕切り18ａが設けられて、天井板との間に絶縁ガス室
18ｄを形成し、この絶縁ガス室18ｄの前端に負荷側の主
回路断路器15Ａが貫設されている。In FIG. 6, a U-shaped partition 18a is provided on the upper part of the box body 18, and an insulating gas chamber is provided between the box 18 and the ceiling plate.
A load-side main circuit disconnector 15A is formed at the front end of the insulating gas chamber 18d.

【００９３】この主回路断路器15Ａには、上部に接地断
路器が組み込まれ、仕切り18ａの前端の前側の大気絶縁
室側に対して、主回路断路器15Ａの操作機構部15ａと接
地断路器の操作機構部15ｂが取り付けられている。The main circuit disconnector 15A has a grounding disconnector incorporated in the upper part thereof. The operating mechanism 15a of the main circuit disconnecting device 15A and the grounding disconnector are connected to the front side of the front end of the partition 18a. Operating mechanism 15b is attached.

【００９４】仕切り18ａの前側下部から垂設された仕切
り18ｂの上部には、真空遮断器16Ａが貫設され、仕切り
18ｂの前面側に対して、真空遮断器16Ａの操作機構部16
ａが取り付けられている。A vacuum circuit breaker 16A penetrates the upper part of the partition 18b which is suspended from the front lower part of the partition 18a.
The operation mechanism 16 of the vacuum circuit breaker 16A
a is attached.

【００９５】真空遮断器16Ａの下側には、電源側の主回
路断路器15Ｂが仕切り18ａに貫設されている。この主回
路断路器15Ｂの操作機構15ｃと接地断路器の操作機構15
ｄも、仕切り18ｂの下部の前面側に固定されている。Below the vacuum circuit breaker 16A, a main circuit disconnector 15B on the power supply side is provided through the partition 18a. The operation mechanism 15c of the main circuit disconnector 15B and the operation mechanism 15 of the ground disconnector
d is also fixed to the lower front surface of the partition 18b.

【００９６】主回路断路器15Ｂの下側には、図３及び図
４の電源側に示した避雷器19が仕切り18ｂに貫設され、
この避雷器19の後端の端子は、上側の主回路断路器15Ｂ
の下極に接続されている。Under the main circuit disconnector 15B, a lightning arrester 19 shown on the power supply side in FIGS. 3 and 4 is provided through the partition 18b.
The terminal at the rear end of the lightning arrester 19 is connected to the upper main circuit disconnector 15B.
Is connected to the lower pole.

【００９７】仕切り18ａの後部下端から垂設された仕切
り18ｃの上部には、ケーブルヘッド17の前端が気密に貫
設され、このケーブルヘッド17の下端には、箱体18の後
部の下側の床から立ち上げられた電源側のケーブルの上
端が接続され、このケーブルは、仕切り18ｃの後方下部
に固定された貫通形の変流器ＣＴを貫通している。A front end of a cable head 17 is air-tightly provided on an upper part of a partition 18c vertically suspended from a rear lower end of the partition 18a. The upper end of a power-supply-side cable raised from the floor is connected, and this cable passes through a through-type current transformer CT fixed to a lower rear portion of the partition 18c.

【００９８】箱体18の天井部には、絶縁ブッシング７
Ａ，７Ｂ，７Ｃが前側から順に配設され、これらの絶縁
ブッシング７Ａ，７Ｂ，７Ｃの下端は、負荷側の主回路
断路器15Ａの上極に導体で接続されている。これらの絶
縁ブッシング７Ａ，７Ｂ，７Ｃの中心部には、図１に示
した第１母線を構成するケーブル11Ａ，11Ｂ，11Ｃが示
されている。[0098] The insulating bushing 7
A, 7B and 7C are arranged in order from the front side, and the lower ends of these insulating bushings 7A, 7B and 7C are connected by conductors to the upper pole of the main circuit disconnector 15A on the load side. At the center of these insulating bushings 7A, 7B, 7C, cables 11A, 11B, 11C constituting the first bus shown in FIG. 1 are shown.

【００９９】破線で示した絶縁ブッシングとともに示し
た符号12Ａ，12Ｂ，12Ｃと符号13Ａ，13Ｂ，13Ｃは、前
述したように、受電盤６Ａがユーザの仕様によって、変
圧器盤２Ａと断路器盤４との間、又は、母線連絡盤３と
２号変圧器一次盤２Ｂとの間などに配置された場合で
も、対応可能なことを示す。Reference numerals 12A, 12B and 12C and reference numerals 13A, 13B and 13C shown together with the insulating bushings indicated by broken lines indicate that the power receiving panel 6A is connected to the transformer panel 2A and the disconnecting switch panel 4 according to the user's specifications as described above. , Or between the bus bar 3 and the No. 2 transformer primary panel 2B.

【０１００】次に、図７は、変圧器一次盤２Ａの縦断面
拡大詳細図で、図１のＣ−Ｃ断面図に対応する図であ
る。図７において、箱体23の中間部の前方には、仕切り
23ａが縦設され、この仕切り23ａの後方に対して仕切り
23ｂが設けられている。さらに、この仕切り23ｂの後方
には、仕切り23ｃが縦設され、これらの仕切り23ａ，23
ｂ，23ｃの間には、絶縁ガスが封入されている。Next, FIG. 7 is an enlarged vertical cross-sectional detailed view of the transformer primary panel 2A, and corresponds to the CC cross-sectional view of FIG. In FIG. 7, a partition is provided in front of the middle portion of the box 23.
23a is installed vertically, and a partition is provided behind the partition 23a.
23b is provided. Further, a partition 23c is provided vertically behind the partition 23b, and these partitions 23a, 23c are provided.
An insulating gas is sealed between b and 23c.

【０１０１】箱体23の前端には、前面扉23ｄが設けら
れ、箱体23の後端には、上部扉23ｅと下部扉23ｆが取り
付けられている。箱体23の天井部には、仕切り23ａと仕
切り23ｂの間の前端の位置に、図１，図３及び図４で示
したケーブルヘッド10Ａ，10Ｂ，10Ｃがケーブル接続側
を前方にして貫設され、仕切り23ｂの後部上方に対し
て、絶縁ブッシング８Ａ，８Ｂ，８Ｃが貫設されてい
る。これらの絶縁ブッシングの間に対して、図１で示し
たケーブル11Ａ，11Ｂ，11Ｃが示されている。At the front end of the box 23, a front door 23d is provided, and at the rear end of the box 23, an upper door 23e and a lower door 23f are attached. At the front end between the partition 23a and the partition 23b, the cable heads 10A, 10B and 10C shown in FIGS. 1, 3 and 4 penetrate the ceiling portion of the box 23 with the cable connection side forward. Insulating bushings 8A, 8B, 8C extend through the rear of the partition 23b. Between these insulating bushings, the cables 11A, 11B and 11C shown in FIG. 1 are shown.

【０１０２】仕切り23ａには、上部に対して、接地断路
器16ｃが前後に貫設され、この接地断路器16ｃの後端に
は、ケーブルヘッド10Ａ，10Ｂ，10Ｃの下端に接続され
た導体23ｇの下端が接続されている。The partition 23a is provided with a grounding disconnector 16c extending forward and backward with respect to the upper part, and a conductor 23g connected to the lower ends of the cable heads 10A, 10B and 10C is provided at the rear end of the grounding disconnector 16c. Are connected at the lower end.

【０１０３】接地断路器16ｃの下側には、真空遮断器16
Ｂが前後に貫設され、この真空遮断器16Ｂの後端の上部
端子は、接地断路器16ｃの後端に接続されている。仕切
り23ｂの下端の水平部には、絶縁スペーサ23ｊが縦に貫
設され、この絶縁スペーサ23ｊの上端は、真空遮断器16
Ｂの後端の下部端子に接続されている。[0103] A vacuum circuit breaker 16 is provided below the grounding disconnector 16c.
B is penetrated back and forth, and the upper terminal at the rear end of the vacuum circuit breaker 16B is connected to the rear end of the ground disconnecting switch 16c. An insulating spacer 23j is vertically provided in a horizontal portion at a lower end of the partition 23b, and an upper end of the insulating spacer 23j is connected to the vacuum circuit breaker 16b.
B is connected to the lower terminal at the rear end.

【０１０４】仕切り23ａの下端には、断路器15Ｃが前後
に貫設され、この断路器15Ｃの後端の上部端子は、絶縁
スペーサ23ｊの下部端子に接続されている。断路器15Ｃ
の後端の下部端子は、箱体23の底板に立設されたがいし
23ｋと仕切り23ｂの後方に固定されたがいし23ｂに固定
された導体23ｍ，23ｎを介して、天井部の後方に貫設さ
れた絶縁ブッシング８Ａ，８Ｂ，８Ｃの下端に接続され
ている。At the lower end of the partition 23a, a disconnecting switch 15C is provided penetrating back and forth, and the upper terminal at the rear end of the disconnecting switch 15C is connected to the lower terminal of the insulating spacer 23j. Disconnector 15C
The lower terminal at the rear end of the insulator stands on the bottom plate of the box 23.
It is connected to lower ends of insulating bushings 8A, 8B and 8C provided behind the ceiling via conductors 23m and 23n fixed to the insulator 23b and the insulator 23b fixed to the rear of the partition 23b.

【０１０５】なお、図１及び図４の右側に示した３号変
圧器一次盤２Ｃも、全く同様に構成されている。また、
図１，図４の中間部に示した２号変圧器一次盤２Ｂも、
内部の機器の配置は図７と同一であるが、仕切り23ｂの
上端が一点鎖線で示すように前方に延びていて、この上
方の天井板に対して、図１で示したように絶縁ブッシン
グ９Ｄ，９Ｅ，９Ｆが前後方向の間隔をあけて縦設され
ている。The primary transformer 2C of the No. 3 transformer shown on the right side of FIGS. 1 and 4 has exactly the same configuration. Also,
The No. 2 transformer primary panel 2B shown in the middle part of FIGS.
The arrangement of the internal equipment is the same as in FIG. 7, but the upper end of the partition 23b extends forward as shown by the dashed line, and the insulating bushing 9D shown in FIG. , 9E, and 9F are vertically installed at an interval in the front-rear direction.

【０１０６】したがって、仕切り板23ｂの形状と、天井
板の開口部の位置だけが異なっている。なお、図３の２
号変圧器Ｔ用の２号変圧器盤の符号９Ｄ，９Ｅ，９Ｆで
示す絶縁ブッシングの部分にも、左右の変圧器盤と同様
に接地断路器を結線図上に示すべきであるが、図面が錯
綜するので省いている。Therefore, only the shape of the partition plate 23b and the position of the opening of the ceiling plate are different. In addition, 2 in FIG.
In the same manner as the left and right transformer boards, grounding disconnectors should be shown on the connection diagram also at the portions of the insulating bushings indicated by reference numerals 9D, 9E and 9F of the No. 2 transformer board for the No. 2 transformer T. Is omitted because it is complicated.

【０１０７】図８は、本発明のガス絶縁閉鎖形スイッチ
ギヤの第２の実施形態を示す縦断面拡大図で、請求項10
に対応し、変圧器一次盤の負荷側の絶縁ブッシングがユ
ーザの仕様によって、後部に設けられた場合を示し、前
述した第１の実施形態で示した図７に対応する図であ
る。FIG. 8 is an enlarged longitudinal sectional view showing a second embodiment of the gas-insulated closed switchgear according to the present invention.
FIG. 8 is a diagram corresponding to FIG. 7 showing the case where the insulating bushing on the load side of the transformer primary panel is provided at the rear part according to the user's specification, and corresponding to FIG. 7 shown in the first embodiment.

【０１０８】図８において、箱体24の天井板には、隣接
箱体に接続される絶縁ブッシング８Ｘ，８Ｙ，８Ｚが中
間部の前方に貫設され、天井板の後端には、負荷側の変
圧器に接続されるケーブルヘッド10Ｘ，10Ｙ，10Ｚがケ
ーブル接続側を後方に向けて貫設されている。In FIG. 8, insulating bushings 8X, 8Y, 8Z connected to adjacent box bodies are provided in the ceiling plate of the box body 24 in front of the intermediate portion. Cable heads 10X, 10Y and 10Z connected to the transformers are provided so as to face the cable connection side rearward.

【０１０９】前後の絶縁ブッシングの間には、この箱体
24の両側に隣接された箱体内の機器を接続するケーブル
11Ｘ，11Ｙ，11Ｚが示されている。左側の絶縁ブッシン
グ８Ｘ，８Ｙ，８Ｚの下部には、Ｕ字形に形成された仕
切り24ａが垂設され、この仕切り24ａの前面に対して、
断路器15Ｄが前後方向に貫設されている。[0109] Between the front and rear insulating bushings,
Cables connecting devices inside the box adjacent to both sides of 24
11X, 11Y and 11Z are shown. A U-shaped partition 24a is vertically provided below the left insulating bushings 8X, 8Y, 8Z.
A disconnector 15D extends through in the front-rear direction.

【０１１０】仕切り24ａの底板と箱体24の底板との間に
は、仕切り24ｂが縦設されている。この仕切り24ｂに対
して真空遮断器16Ｃが取り付けられ、この真空遮断器16
Ｃの下方に対して、接地断路器16ｃが取り付けられてい
る。The partition 24b is provided vertically between the bottom plate of the partition 24a and the bottom plate of the box 24. A vacuum circuit breaker 16C is attached to the partition 24b.
A ground disconnecting switch 16c is mounted below C.

【０１１１】仕切り24ａの底板には、絶縁スペーサ24ｋ
が貫設され、この絶縁スペーサ24ｋの上端は、断路器15
Ｄの後部の下端に接続され、絶縁スペーサ24ｋの下端
は、真空遮断器16Ｃの後部の上端に接続されている。The insulating spacer 24k is provided on the bottom plate of the partition 24a.
The insulating spacer 24k has an upper end connected to the disconnector 15.
D is connected to the lower end of the rear part, and the lower end of the insulating spacer 24k is connected to the upper end of the rear part of the vacuum circuit breaker 16C.

【０１１２】真空遮断器16Ｃの後部の下部端子は、接地
断路器16ｃの後端に導体24ｆで接続され、さらに導体24
ｇ，24ｈ，24ｊを介して、天井板の後端に貫設されたケ
ーブルヘッド10Ｘ（Ｙ，Ｚ）の下端に接続されている。The lower terminal at the rear of the vacuum circuit breaker 16C is connected to the rear end of the ground disconnecting switch 16c via a conductor 24f.
g, 24h, and 24j are connected to the lower end of a cable head 10X (Y, Z) penetrating the rear end of the ceiling plate.

【０１１３】天井板の前方に貫設された絶縁ブッシング
８Ｘ，８Ｙ，８Ｚの下端は、断路器15Ｄの後部の上端に
接続されている。箱体24の前端には、前面扉24ｃが示さ
れ、箱体24の後端には、仕切り24ｅと背面扉24ｄが示さ
れている。The lower ends of the insulating bushings 8X, 8Y, 8Z penetrating the front of the ceiling plate are connected to the rear upper end of the disconnector 15D. A front door 24c is shown at the front end of the box 24, and a partition 24e and a rear door 24d are shown at the rear end of the box 24.

【０１１４】仕切り24ｂと仕切り24ｅとの間及び仕切り
24ａの内部に対して、絶縁ガスが封入されている。この
ように構成することによって、降圧変圧器が箱体の後方
に設置される場合にも対応することができる。Between and between the partition 24b and the partition 24e
An insulating gas is sealed in the inside of 24a. With this configuration, it is possible to cope with the case where the step-down transformer is installed behind the box.

【０１１５】次に図９は、本発明のガス絶縁金属閉鎖形
スイッチギヤの第３の実施形態を示す平面図で、請求項
５及び請求項６に対応し、図10は、図９のＤ−Ｄ断面拡
大詳細図である。Next, FIG. 9 is a plan view showing a third embodiment of the gas insulated metal closed switchgear according to the present invention, corresponding to claims 5 and 6, and FIG. FIG. 4 is an enlarged detail view of a cross section D.

【０１１６】図９及び図10においては、従来の技術で示
した図９と同様に受電系統が２ＣＢ−１ＶＣＴ−２ＣＢ
又は２ＣＢ−１ＶＣＴ−２ＤＳの受電設備の場合を示
し、中央部に設置されたＶＣＴ盤１Ａの両側に対して、
変圧器一次盤５Ａ，５Ｂが隣設され、これらの両側に受
電盤６Ａ，６Ｂが設置されている。In FIGS. 9 and 10, the power receiving system is 2CB-1VCT-2CB as in FIG. 9 shown in the prior art.
Or show the case of 2CB-1VCT-2DS power receiving equipment, for both sides of the VCT panel 1A installed in the center,
Transformer primary panels 5A and 5B are provided adjacent to each other, and power receiving panels 6A and 6B are installed on both sides of these.

【０１１７】図９及び図10に示すように、ＶＣＴ盤１Ａ
の天井部には、第１母線としてのケーブル11Ｒ，11Ｓ，
11Ｔが配設されて各絶縁ブッシング７Ｒ，７Ｓ，７Ｔに
接続されている。As shown in FIGS. 9 and 10, VCT board 1A
Cables 11R, 11S as the first bus,
11T is provided and connected to each of the insulating bushings 7R, 7S, 7T.

【０１１８】これらの絶縁ブッシングの７Ｒ，７Ｓ，７
Ｔの前方に対して、第２母線のケーブル12Ｒが接続され
る絶縁ブッシング８Ｒが貫設され、後端に対して第２母
線のケーブル12Ｔが以下説明するように接続される絶縁
ブッシング８Ｔが貫設され、第２母線としてのＳ相の絶
縁ブッシングとケーブルは第１母線のＳ相と共通で省略
されている。The insulating bushings 7R, 7S, 7
An insulation bushing 8R to which the second bus cable 12R is connected extends through the front of T, and an insulation bushing 8T to which the second bus cable 12T is connected to the rear end as described below. The S-phase insulated bushing and the cable as the second bus are omitted in common with the S-phase of the first bus.

【０１１９】このうち、絶縁ブッシング７Ｒと絶縁ブッ
シング８Ｒの下端は、ＶＣＴのＵ相変流器20Ａに接続さ
れ、絶縁ブッシング７Ｔと絶縁ブッシング８Ｔの下端
は、ＶＣＴのＷ相変流器20Ｂに接続され、絶縁ブッシン
グ７Ｓの下端は、計器用変圧器21の電源側に接続されて
いる。The lower ends of the insulating bushings 7R and 8R are connected to the VCT U-phase current transformer 20A, and the lower ends of the insulating bushings 7T and 8T are connected to the VCT W-phase current transformer 20B. The lower end of the insulating bushing 7S is connected to the power supply side of the instrument transformer 21.

【０１２０】このように構成されたガス絶縁金属閉鎖形
スイッチギヤにおいても、各群の絶縁ブッシングの幅方
向の間隔を、各絶縁ブッシングの頭部の最大幅と比べ
て、図５に示したように僅かに狭くするとともに、第２
母線としてのＳ相を省き、第１母線のＳ相と共用するこ
とで、ケーブルの接続作業を減らすことができるので、
設置場所における据付工事の作業量を減らすこともでき
る。In the gas insulated metal closed switchgear thus configured, the width of the insulation bushings of each group in the width direction is compared with the maximum width of the head of each insulation bushing as shown in FIG. Slightly narrower and the second
By omitting the S phase as the bus and sharing it with the S phase of the first bus, the cable connection work can be reduced,
The amount of work for installation work at the installation site can be reduced.

【０１２１】[0121]

【発明の効果】以上、請求項１に対応する発明によれ
ば、第１の絶縁ブッシングの片側の台形部の側面と第２
の絶縁ブッシングの他側の台形部の側面を隣接させ、第
２の絶縁ブッシングの片側の台形部の側面と第３の絶縁
ブッシングの他側の台形部の側面を隣接させることで、
絶縁ブッシングが箱体の外壁や天井部に占める占有面積
を減らしたので、箱体の奥行きを減らしガス絶縁の特長
を発揮することのできるガス絶縁金属閉鎖形スイッチギ
ヤを得ることができる。As described above, according to the invention corresponding to claim 1, the side surface of the trapezoidal portion on one side of the first insulating bushing and the second
The side of the trapezoid on the other side of the insulating bushing is made adjacent, and the side of the trapezoid on one side of the second insulating bushing and the side of the trapezoid on the other side of the third insulating bushing are made adjacent to each other.
Since the area occupied by the insulating bushing on the outer wall and ceiling of the box is reduced, it is possible to obtain a gas-insulated metal-closed switchgear that can reduce the depth of the box and exhibit the characteristics of gas insulation.

【０１２２】また、請求項２に対応する発明によれば、
第１の受電盤の負荷側と第１の受電側母線連絡断路器の
片側に接続される第１の絶縁ブッシング群を箱体の天井
部の片側前方に貫設し、第２の受電盤の負荷側と第２の
母線連絡断路器の片側に接続される第２の絶縁ブッシン
グ群を箱体の天井部の他側前方に貫設し、第１の受電盤
の負荷側と第１の負荷側母線連絡断路器の片側に接続さ
れる第３の絶縁ブッシング群を箱体の天井部の他側後方
に貫設し、計器用変圧器に片側が接続され他側が第２の
負荷側母線連絡断路器の他側に接続される第４の絶縁ブ
ッシング群を箱体の天井部の他側前方に貫設すること
で、絶縁ブッシングが箱体の天井部に占める占有面積を
減らしたので、箱体の奥行きを減らしガス絶縁の特長を
発揮することのできるガス絶縁金属閉鎖形スイッチギヤ
を得ることができる。According to the invention corresponding to claim 2,
A first insulated bushing group connected to the load side of the first power receiving panel and one side of the first power receiving side bus bar connecting / disconnecting device is provided in front of one side of the ceiling portion of the box, and the second power receiving panel A second group of insulating bushings connected to the load side and one side of the second bus bar connecting / disconnecting device is provided in front of the other side of the ceiling of the box body, and the load side of the first power receiving panel and the first load are connected to each other. A third group of insulating bushings connected to one side of the side bus connection disconnector is pierced behind the other side of the ceiling of the box, and one side is connected to the instrument transformer and the other side is connected to the second load side bus connection. The fourth insulating bushing group connected to the other side of the disconnector is provided in front of the other side of the ceiling of the box so as to reduce the area occupied by the insulating bushing on the ceiling of the box. It is possible to obtain a gas-insulated metal-closed switchgear that can reduce the depth of the body and exhibit the features of gas insulation.

【０１２３】また、請求項３に対応する発明によれば、
第１，第２，第３及び第４の絶縁ブッシング群の第１相
の絶縁ブッシングの片側の台形部の側面と第２層の絶縁
ブッシングの他側の台形部を隣接し、第２相の絶縁ブッ
シングの片側の台形部の側面と第３相の絶縁ブッシング
の他側の台形部の側面を隣接することで、絶縁ブッシン
グが箱体の天井部に占める占有面積を減らしたので、箱
体の奥行きを減らしガス絶縁の特長を発揮することので
きるガス絶縁金属閉鎖形スイッチギヤを得ることができ
る。According to the third aspect of the present invention,
The side surface of the trapezoid on one side of the first-phase insulating bushing of the first, second, third and fourth insulating bushing groups and the trapezoidal portion on the other side of the second-layer insulating bushing are adjacent to each other. Since the side of the trapezoid on one side of the insulating bushing and the side of the trapezoid on the other side of the third phase insulating bushing are adjacent to each other, the area occupied by the insulating bushing on the ceiling of the box is reduced. A gas-insulated metal-closed switchgear that can reduce the depth and exhibit the features of gas insulation can be obtained.

【０１２４】また、請求項４に対応する発明によれば、
第５の絶縁ブッシング群の第２相の絶縁ブッシングを第
２の絶縁ブッシング群の第３相と第４の絶縁ブッシング
群の第１相の間に設け、第５の絶縁ブッシング群の第１
相の絶縁ブッシングを第１，第２の絶縁ブッシング群の
第１相の中間部の片側に設け、第５の絶縁ブッシング群
の第３相を第３，第４の絶縁ブッシング群の第３相の他
側に設けることで、絶縁ブッシングが箱体の天井部に占
める占有面積を減らしたので、箱体の奥行きを減らしガ
ス絶縁の特長を発揮することのできるガス絶縁金属閉鎖
形スイッチギヤを得ることができる。Further, according to the invention corresponding to claim 4,
A second phase insulating bushing of the fifth insulating bushing group is provided between a third phase of the second insulating bushing group and a first phase of the fourth insulating bushing group, and a first phase of the fifth insulating bushing group is provided.
A phase insulating bushing is provided on one side of an intermediate portion of the first phase of the first and second insulating bushing groups, and a third phase of the fifth insulating bushing group is a third phase of the third and fourth insulating bushing groups. By providing the switch on the other side, the area occupied by the insulating bushing on the ceiling of the box is reduced, so that a gas-insulated metal closed switchgear that can reduce the depth of the box and exhibit the characteristics of gas insulation is obtained. be able to.

【０１２５】また、請求項５に対応する発明によれば、
箱体を前後に仕切る第１，第２，第３の縦仕切りとこれ
らの縦仕切りの間を上下に仕切る横仕切りにより、第
１，第２の縦仕切りの下部に第１のガス絶縁室を形成
し、第１，第２の仕切りの上部に第２のガス絶縁室を形
成し、第２，第３の縦仕切りの下部に第３のガス絶縁室
を形成し、第２，第３の縦仕切りの上部に第４のガス絶
縁室を形成し、第１のガス絶縁室に第１の受電側母線連
絡断路器を収納し、第２のガス絶縁室に第２の受電側母
線連絡断路器を収納し、第３のガス絶縁室に第１の負荷
側母線連絡断路器を収納し、第４のガス絶縁室に第２の
負荷側母線連絡断路器を収納することで、絶縁ブッシン
グが箱体の外壁や天井部に占める占有面積を減らしたの
で、箱体の奥行きを減らしガス絶縁の特長を発揮するこ
とのできるガス絶縁金属閉鎖形スイッチギヤを得ること
ができる。According to the invention corresponding to claim 5,
A first gas insulating chamber is provided below the first and second vertical partitions by the first, second, and third vertical partitions that partition the box body back and forth, and the horizontal partition that vertically separates these vertical partitions. Forming a second gas-insulated chamber above the first and second partitions, and forming a third gas-insulated chamber below the second and third vertical partitions; A fourth gas insulating chamber is formed above the vertical partition, a first power receiving side bus connecting / disconnecting device is housed in the first gas insulating chamber, and a second power receiving side bus connecting / disconnecting is installed in the second gas insulating chamber. By storing the first load-side bus connection disconnector in the third gas insulation chamber and the second load-side bus connection disconnector in the fourth gas insulation chamber, the insulation bushing is reduced. Gas insulated metal that can reduce the depth of the box and exhibit the gas insulation characteristics because the area occupied by the outer wall and ceiling of the box has been reduced. It is possible to obtain a closed type switch gear.

【０１２６】さらに、請求項６に対応する発明によれ
ば、第４の絶縁ブッシング群の第１相及び第２相を第３
の絶縁ブッシング群の前後に設け、第４の絶縁ブッシン
グ群の第２相を第３の絶縁ブッシング群の第２相と共用
とし、第５，第６の絶縁ブッシング群の第２相を第１，
第２の絶縁ブッシング群の第２相と接続することで、絶
縁ブッシングが箱体の天井部に占める占有面積を減らし
たので、箱体の奥行きを減らしガス絶縁の特長を発揮す
ることのできるガス絶縁金属閉鎖形スイッチギヤを得る
ことができる。Further, according to the invention corresponding to claim 6, the first and second phases of the fourth insulating bushing group are changed to the third phase.
The second phase of the fourth insulating bushing group is shared with the second phase of the third insulating bushing group, and the second phase of the fifth and sixth insulating bushing groups is the first phase. ,
By connecting to the second phase of the second insulating bushing group, the area occupied by the insulating bushing on the ceiling of the box is reduced, so that the gas that can reduce the depth of the box and exhibit the characteristics of gas insulation. An insulated metal closed switchgear can be obtained.

【０１２７】また、請求項８に対応する発明によれば、
箱体の上部に設けられ前端に負荷側断路器が貫設された
上部絶縁ガス室と、この上部絶縁ガス室の下側に形成さ
れ上極が負荷側断路器の下極に接続される受電用真空遮
断器が前端上部に貫設され、この受電用真空遮断器の下
側にこの受電用真空遮断器の下極に上極が接続される電
源側断路器が貫設された下部絶縁ガス室と、上部絶縁ガ
ス室の天井部に貫設され下端が負荷側断路器の上極に接
続され箱体に並設された箱体に上部が接続される絶縁ブ
ッシングとを備えることで、絶縁ブッシングが箱体の天
井部に占める占有面積を減らしたので、箱体の奥行きを
減らしガス絶縁の特長を発揮することのできるガス絶縁
金属閉鎖形スイッチギヤを得ることができる。Further, according to the invention corresponding to claim 8,
An upper insulating gas chamber provided at the top of the box and having a load-side disconnector penetrating at the front end thereof, and a power receiver formed below the upper insulating gas chamber and having an upper electrode connected to a lower electrode of the load-side disconnector. Insulating gas through which a vacuum circuit breaker is penetrated at the top of the front end, and a power-supply-side disconnector through which the upper electrode is connected to the lower electrode of the vacuum circuit breaker for power reception is provided below the vacuum circuit breaker for power reception. Chamber, and an insulating bushing penetrating the ceiling of the upper insulating gas chamber, the lower end of which is connected to the upper pole of the load-side disconnector and the upper part of which is connected to a box juxtaposed to the box. Since the area occupied by the bushing on the ceiling of the box is reduced, it is possible to obtain a gas-insulated metal-closed switchgear that can reduce the depth of the box and exhibit the characteristics of gas insulation.

【０１２８】また、請求項９に対応する発明によれば、
箱体の中間部に形成され負荷側の変圧器に接続されるケ
ーブルヘッドが天井部に貫設され前端に負荷側真空遮断
器が貫設されたガス絶縁遮断器室と、このガス絶縁遮断
器室の後部と下部に形成され上極が負荷側真空遮断器の
下極に接続される断路器が前端に貫設され、この断路器
の下極が下端に接続され箱体に並設された箱体に上部が
接続される絶縁ブッシングが天井部に貫設されたガス絶
縁断路器室とを備えることで、絶縁ブッシングが箱体の
天井部に占める占有面積を減らしたので、箱体の奥行き
を減らしガス絶縁の特長を発揮することのできるガス絶
縁金属閉鎖形スイッチギヤを得ることができる。Further, according to the invention corresponding to claim 9,
A gas-insulated circuit breaker chamber in which a cable head formed in the middle of the box and connected to a load-side transformer penetrates the ceiling and a load-side vacuum circuit breaker extends through the front end; A disconnector formed at the rear and lower part of the chamber and having an upper pole connected to the lower pole of the load-side vacuum circuit breaker was provided at the front end, and the lower pole of the disconnector was connected to the lower end and arranged side by side with the box. By providing an insulating bushing whose upper part is connected to the box body and a gas-insulated disconnector room penetrating the ceiling, the area occupied by the insulating bushing on the ceiling part of the box body is reduced. Thus, it is possible to obtain a gas-insulated metal-closed switchgear which can reduce the power consumption and exhibit the characteristics of gas insulation.

【０１２９】さらに、請求項10に対応する発明のガス絶
縁金属閉鎖形スイッチギヤは、天井部に絶縁ブッシング
が貫設されこの絶縁ブッシングの下端に上極が接続され
る断路器が前端に貫設され絶縁ガスが封入された断路器
室と、この断路器室の下部と後部に形成され断路器の下
極に上極が接続される負荷側真空遮断器が前端に貫設さ
れこの負荷側真空遮断器の下極に下端が接続され上部が
負荷側の変圧器に接続されるケーブルヘッドが天井部に
貫設され絶縁ガスが封入された遮断器室とを備えること
で、絶縁ブッシングが箱体の天井部に占める占有面積を
減らしたので、箱体の奥行きを減らしガス絶縁の特長を
発揮することのできるガス絶縁金属閉鎖形スイッチギヤ
を得ることができる。Further, in the gas insulated metal closed switchgear according to the tenth aspect of the present invention, an insulating bushing extends through the ceiling, and a disconnector having an upper pole connected to the lower end of the insulating bushing extends through the front end. A disconnector chamber filled with insulating gas and a load-side vacuum circuit breaker formed at the lower and rear portions of the disconnector chamber and connected to the lower pole of the disconnector and having an upper pole connected to the front end thereof. A circuit breaker room in which the lower end is connected to the lower pole of the circuit breaker and the upper side is connected to the transformer on the load side is provided in the ceiling and a circuit breaker room filled with insulating gas is provided. Since the occupation area occupied by the ceiling portion is reduced, it is possible to obtain a gas-insulated metal closed switchgear which can reduce the depth of the box and exhibit the characteristics of gas insulation.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明のガス絶縁金属閉鎖形スイッチギヤの第
１の実施形態を示す平面図。FIG. 1 is a plan view showing a first embodiment of a gas-insulated metal closed switchgear of the present invention.

【図２】１のＡ−Ａ断面拡大詳細図。FIG. 2 is an enlarged detailed view taken along the line AA of FIG.

【図３】本発明のガス絶縁金属閉鎖形スイッチギヤの第
１の実施形態を示す主回路単線結線図。FIG. 3 is a main circuit single line connection diagram showing a first embodiment of the gas insulated metal closed switchgear of the present invention.

【図４】本発明のガス絶縁金属閉鎖形スイッチギヤの第
１の実施形態を示す主回路単線結線配置図。FIG. 4 is a main circuit single line connection layout diagram showing a first embodiment of the gas insulated metal closed switchgear of the present invention.

【図５】図１の部分拡大詳細図。FIG. 5 is a partially enlarged detailed view of FIG. 1;

【図６】図１のＢ−Ｂ断面拡大詳細図。FIG. 6 is an enlarged detailed view taken along the line BB of FIG. 1;

【図７】図１のＣ−Ｃ断面拡大詳細図。FIG. 7 is an enlarged detailed sectional view taken along the line CC of FIG. 1;

【図８】本発明のガス絶縁金属閉鎖形スイッチギヤの第
２の実施形態を示す縦断面拡大詳細図。FIG. 8 is an enlarged vertical cross-sectional detail view showing a second embodiment of the gas insulated metal closed switchgear of the present invention.

【図９】本発明のガス絶縁金属閉鎖形スイッチギヤの第
３の実施形態を示す平面図。FIG. 9 is a plan view showing a third embodiment of the gas-insulated metal closed switchgear of the present invention.

【図１０】図９のＣ−Ｃ断面拡大詳細図。10 is an enlarged detailed cross-sectional view taken along the line CC of FIG. 9;

【図１１】従来のガス絶縁金属閉鎖形スイッチギヤの一
例を示す主回路単線結線配置図。FIG. 11 is a main circuit single line connection layout diagram showing an example of a conventional gas insulated metal closed switchgear.

【図１２】従来のガス絶縁金属閉鎖形スイッチギヤの一
例を示す平面図。FIG. 12 is a plan view showing an example of a conventional gas insulated metal closed switchgear.

【図１３】図10のＤ−Ｄ断面拡大詳細図。FIG. 13 is an enlarged detailed sectional view taken along the line DD of FIG. 10;

【符号の説明】[Explanation of symbols]

１…計器用変成器（ＶＣＴ）盤、２Ａ…１号変圧器一次
盤、２Ｂ…２号変圧器一次盤、２Ｃ…３号変圧器一次
盤、３…母線連絡盤、４…断路器盤、５Ａ…１号変圧器
一次盤、６Ａ，６Ｂ…受電盤、７Ａ，７Ｂ，７Ｃ，７
Ｄ，７Ｅ，７Ｆ，７Ｇ，７Ｈ，７Ｊ，７Ｋ，７Ｌ，７
Ｍ，７Ｎ，７Ｏ，７Ｐ，７Ｒ，７Ｓ，７Ｔ，８Ａ，８
Ｂ，８Ｃ，８Ｄ，８Ｅ，８Ｆ，８Ｇ，８Ｈ，８Ｊ，８
Ｋ，８Ｌ，８Ｍ，８Ｎ，８Ｏ，８Ｐ，８Ｒ，８Ｔ，８
Ｘ，８Ｙ，８Ｚ，９Ａ，９Ｂ，９Ｃ，９Ｄ，９Ｅ，９Ｆ
…絶縁ブッシング、10Ａ，10Ｂ，10Ｃ，10Ｄ，10Ｅ，10
Ｆ，10Ｒ，10Ｓ，10Ｔ，10Ｕ，10Ｖ，10Ｗ，10Ｘ，10
Ｙ，10Ｚ，17…ケーブルヘッド、11Ａ，11Ｂ，11Ｃ，11
Ｄ，11Ｅ，11Ｆ，12Ａ，12Ｂ，12Ｃ，12Ｄ，12Ｅ，12
Ｆ，12Ｇ，12Ｈ，12Ｊ，13Ａ，13Ｂ，13Ｃ…ケーブル、
14Ａ，14Ｂ，15Ａ，15Ｂ，15Ｃ，15Ｄ…断路器、16Ａ，
16Ｂ，16Ｃ…真空遮断器、18，22，23，24…箱体、19…
避雷器，20Ａ，20Ｂ…変流器、21…Ｖ相計器用変圧器。1 ... Transformer for instrument (VCT) panel, 2A ... Primary board of No.1 transformer, 2B ... Primary board of No.2 transformer, 2C ... Primary board of No.3 transformer, 3 ... Bus connection board, 4 ... Disconnector board, 5A: No. 1 transformer primary panel, 6A, 6B: Power receiving panel, 7A, 7B, 7C, 7
D, 7E, 7F, 7G, 7H, 7J, 7K, 7L, 7
M, 7N, 7O, 7P, 7R, 7S, 7T, 8A, 8
B, 8C, 8D, 8E, 8F, 8G, 8H, 8J, 8
K, 8L, 8M, 8N, 80, 8P, 8R, 8T, 8
X, 8Y, 8Z, 9A, 9B, 9C, 9D, 9E, 9F
... Insulating bushings, 10A, 10B, 10C, 10D, 10E, 10
F, 10R, 10S, 10T, 10U, 10V, 10W, 10X, 10
Y, 10Z, 17 ... cable head, 11A, 11B, 11C, 11
D, 11E, 11F, 12A, 12B, 12C, 12D, 12E, 12
F, 12G, 12H, 12J, 13A, 13B, 13C ... cable,
14A, 14B, 15A, 15B, 15C, 15D ... disconnector, 16A,
16B, 16C: vacuum circuit breaker, 18, 22, 23, 24 ... box, 19 ...
Lightning arrester, 20A, 20B ... current transformer, 21 ... transformer for V-phase instrument.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀切 和仁 東京都府中市東芝町１番地 株式会社東芝 府中工場内 (72)発明者 阪口 修 東京都府中市東芝町１番地 株式会社東芝 府中工場内 (72)発明者 郷 冨夫 東京都府中市東芝町１番地 株式会社東芝 府中工場内 (72)発明者 児玉 良一 東京都府中市東芝町１番地 株式会社東芝 府中工場内 (72)発明者 池田 順一 東京都府中市東芝町１番地 株式会社東芝 府中工場内 (72)発明者 平本 武 東京都府中市東芝町１番地 株式会社東芝 府中工場内 (72)発明者 正木 信男 東京都港区芝浦一丁目１番１号 株式会社 東芝本社事務所内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuhito Horikiri, 1 Toshiba-cho, Fuchu-shi, Tokyo, Japan Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Osamu Sakaguchi 1, 1-Toshiba-cho, Fuchu-shi, Tokyo, Japan 72) Inventor Tomio Go Go 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Ryoichi Kodama 1-go Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant Toshiba Corporation (72) Inventor Junichi Ikeda Tokyo No. 1, Toshiba-cho, Fuchu City Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Takeshi Hiramoto No. 1, Toshiba Town, Fuchu City, Tokyo, Japan Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Nobuo Masaki 1-1-1, Shibaura, Minato-ku, Tokyo No. 1 Toshiba Corporation head office

Claims (10)

【特許請求の範囲】[Claims] 【請求項１】 頭部の両側に形成された台形部の少なく
とも一側にケーブルが接続される複数の絶縁ブッシング
が箱体の外壁に隣接して平行に貫挿されたガス絶縁金属
閉鎖形スイッチギヤにおいて、第１の絶縁ブッシングの
片側の前記台形部の側面と第２の絶縁ブッシングの他側
の前記台形部の側面を隣接させ、第２の絶縁ブッシング
の片側の前記台形部の側面と第３の絶縁ブッシングの他
側の前記台形部の側面を隣接させたことを特徴とするガ
ス絶縁金属閉鎖形スイッチギヤ。1. A gas insulated metal closed switch in which a plurality of insulating bushes are connected in parallel to at least one side of a trapezoid formed on both sides of a head and adjacent to an outer wall of a box. In the gear, the side of the trapezoid on one side of the first insulating bushing and the side of the trapezoid on the other side of the second insulating bushing are adjacent to each other, and the side of the trapezoid on one side of the second insulating bushing is 3. A gas-insulated metal-closed switchgear, wherein a side surface of the trapezoidal portion on the other side of the insulating bushing of No. 3 is adjacent. 【請求項２】 第１の系統の電力を受電する第１の受電
盤と第２の系統の電力を受電する第２の受電盤の負荷側
に片側が接続され他側が互いに接続される第１，第２の
受電側母線連絡断路器と、前記第１の受電盤の負荷側に
片側が接続された第１の負荷側母線連絡断路器と、前記
第２の受電盤の負荷側に計器用変成器を介して片側が接
続され他側が前記第１の負荷側母線断路器の負荷側と負
荷側変圧器に接続される第２の負荷側母線連絡断路器と
が箱体に収納された母線連絡用のガス絶縁金属閉鎖形ス
イッチギヤにおいて、前記第１の受電盤の負荷側と前記
第１の受電側母線連絡断路器の片側に接続される第１の
絶縁ブッシング群を前記箱体の天井部の片側前方に貫設
し、前記第２の受電盤の負荷側と前記第２の母線連絡断
路器の片側に接続される第２の絶縁ブッシング群を前記
箱体の天井部の他側前方に貫設し、前記第１の受電盤の
負荷側と前記第１の負荷側母線連絡断路器の片側に接続
される第３の絶縁ブッシング群を前記箱体の天井部の他
側後方に貫設し、前記計器用変圧器に片側が接続され他
側が前記第２の負荷側母線連絡断路器の他側に接続され
る第４の絶縁ブッシング群を前記箱体の天井部の他側前
方に貫設したことを特徴とするガス絶縁金属閉鎖形スイ
ッチギヤ。2. A first power receiving panel for receiving power of a first system and a second power receiving panel for receiving power of a second system, one of which is connected to a load side and a first of which is connected to the other side. A second power receiving side bus connecting / disconnecting device, a first load side bus connecting / disconnecting device having one side connected to the load side of the first power receiving panel, and a measuring instrument on the load side of the second power receiving panel. A bus in which one side is connected via a transformer and the other side is housed in a box with a load side of the first load side bus disconnector and a second load side bus connecting disconnector connected to the load side transformer. In a gas insulated metal closed switchgear for communication, a first insulating bushing group connected to a load side of the first power receiving panel and one side of the first power receiving side bus connecting disconnector is connected to a ceiling of the box body. Part, and is connected to the load side of the second power receiving panel and one side of the second busbar connecting disconnector. A second group of insulating bushings is provided in front of the other side of the ceiling of the box body, and is connected to the load side of the first power receiving panel and one side of the first load-side bus connecting disconnector. An insulation bushing group of No. 3 is penetrated behind the other side of the ceiling of the box body, and one side is connected to the instrument transformer, and the other side is connected to the other side of the second load side bus connection disconnector. A gas insulated metal closed switchgear, wherein a fourth group of insulating bushings is provided in front of the other side of the ceiling of the box body. 【請求項３】 前記第１，第２，第３及び第４の絶縁ブ
ッシング群の第１相の絶縁ブッシングの片側の台形部の
側面と第２相の絶縁ブッシングの他側の台形部を隣接
し、第２相の絶縁ブッシングの片側の台形部の側面と第
３相の絶縁ブッシングの他側の台形部の側面を隣接した
ことを特徴とする請求項２に記載のガス絶縁金属閉鎖形
スイッチギヤ。3. A side face of a trapezoid on one side of the first phase insulating bushing of the first, second, third and fourth insulating bushing groups and a trapezoidal section on the other side of the second phase insulating bushing. 3. The gas insulated metal closed type switch according to claim 2, wherein the side surface of the trapezoid on one side of the second phase insulating bushing is adjacent to the side surface of the trapezoid on the other side of the third phase insulating bushing. gear. 【請求項４】 前記第５の絶縁ブッシング群の第２相の
絶縁ブッシングを前記第２の絶縁ブッシング群の第３相
と前記第４の絶縁ブッシング群の第１相の間に設け、前
記第５の絶縁ブッシング群の第１相の絶縁ブッシングを
前記第１，第２の絶縁ブッシング群の第１相の中間部の
片側に設け、前記第５の絶縁ブッシング群の第３相を前
記第３，第４の絶縁ブッシング群の第３相の他側に設け
たことを特徴とする請求項２又は請求項３に記載のガス
絶縁金属閉鎖形スイッチギヤ。4. A second phase insulating bushing of the fifth insulating bushing group is provided between a third phase of the second insulating bushing group and a first phase of the fourth insulating bushing group. A first-phase insulating bushing of the fifth insulating bushing group is provided on one side of an intermediate portion of the first phase of the first and second insulating bushing groups, and a third phase of the fifth insulating bushing group is connected to the third phase. 4. The gas insulated metal closed switchgear according to claim 2, wherein said switchgear is provided on the other side of the third phase of the fourth insulating bushing group. 【請求項５】 前記箱体を前後に仕切る第１，第２，第
３の縦仕切りとこれらの縦仕切りの間を上下に仕切る横
仕切りにより、前記第１，第２の縦仕切りの下部に第１
のガス絶縁室を形成し、前記第１，第２の仕切りの上部
に第２のガス絶縁室を形成し、前記第２，第３の縦仕切
りの下部に第３のガス絶縁室を形成し、前記第２，第３
の縦仕切りの上部に第４のガス絶縁室を形成し、前記第
１のガス絶縁室に前記第１の受電側母線連絡断路器を収
納し、前記第２のガス絶縁室に前記第２の受電側母線連
絡断路器を収納し、前記第３のガス絶縁室に前記第１の
負荷側母線連絡断路器を収納し、前記第４のガス絶縁室
に前記第２の負荷側母線連絡断路器を収納したことを特
徴とする請求項２乃至請求項４に記載のガス絶縁金属閉
鎖形スイッチギヤ。5. A lower part of the first and second vertical partitions by first, second, and third vertical partitions that partition the box body back and forth and a horizontal partition that vertically separates these vertical partitions. First
Forming a second gas insulating chamber above the first and second partitions, and forming a third gas insulating chamber below the second and third vertical partitions. , The second and third
Forming a fourth gas insulating chamber above the vertical partition, housing the first power receiving side bus connecting disconnector in the first gas insulating chamber, and storing the second gas insulating chamber in the second gas insulating chamber. A power receiving side bus connection disconnector is housed, the first load side bus connection disconnector is housed in the third gas insulation chamber, and the second load side bus connection disconnector is housed in the fourth gas insulation chamber. 5. The gas insulated metal closed switchgear according to claim 2, wherein the switchgear is accommodated. 【請求項６】 第１の系統の電力を受電し負荷側に接続
される第１の絶縁ブッシング群が箱体の天井部に貫設さ
れた第１の受電盤と、第２の系統の電力を受電し負荷側
に接続される第２の絶縁ブッシング群が天井部に貫設さ
れた第２の受電盤と、前記第１，第２の受電盤の対向側
に隣接され負荷側に給電する第１，第２の変圧器一次盤
と、この第１，第２の変圧器一次盤の間に隣設され箱体
の天井部に貫設された第３の絶縁ブッシング群を介して
前記第１，第２の絶縁ブッシング群と接続され内部に収
納した計器用変成器と天井部に貫設された第４の絶縁ブ
ッシング群を介して前記第１，第２の変圧器一次盤の天
井部に貫設された第５，第６の絶縁ブッシング群に接続
されるＶＣＴ盤とでなるガス絶縁金属閉鎖形スイッチギ
ヤにおいて、前記第４の絶縁ブッシング群の第１相及び
第２相を前記第３の絶縁ブッシング群の前後に設け、前
記第４の絶縁ブッシング群の第２相を前記第３の絶縁ブ
ッシング群の第２相と共用とし、前記第５，第６の絶縁
ブッシング群の第２相を前記第１，第２の絶縁ブッシン
グ群の第２相と接続したことを特徴とするガス絶縁金属
閉鎖形スイッチギヤ。6. A first power receiving panel, which receives a power of a first system and has a first group of insulating bushings connected to a load side penetrating a ceiling portion of a box, and a power of a second system. And a second group of insulating bushings connected to the load side, and a second power receiving panel penetrating the ceiling, and a power supply to the load side adjacent to the first and second power receiving panels on opposite sides. The first and second transformer primary panels and a third insulating bushing group disposed adjacent to the first and second transformer primary panels and penetrating the ceiling of the box body. A ceiling part of the first and second transformer primary panels via an instrument transformer connected to the first and second insulation bushing groups and housed therein and a fourth insulation bushing group penetrating the ceiling part; A gas-insulated metal switchgear comprising a VCT panel connected to fifth and sixth groups of insulating bushings penetrating through the gasket. A first phase and a second phase of the fourth insulating bushing group are provided before and after the third insulating bushing group, and a second phase of the fourth insulating bushing group is provided with a second phase of the third insulating bushing group. A gas insulated metal closed type switchgear, wherein a second phase of the fifth and sixth insulating bushings is connected to a second phase of the first and second insulating bushings. 【請求項７】 前記第１，第２及び前記第３の絶縁ブッ
シング群の第１相の片側の前記台形部の側面と第２相の
他側の前記台形部の側面を隣接させ、第２相の片側の前
記台形部の側面と第３相の他側の前記台形部の側面を隣
接させたことを特徴とする請求項６に記載のガス絶縁金
属閉鎖形スイッチギヤ。7. A side surface of the trapezoidal portion on one side of the first phase of the first, second, and third insulating bushing groups is adjacent to a side surface of the trapezoidal portion on the other side of the second phase. 7. The gas insulated metal closed switchgear according to claim 6, wherein a side surface of the trapezoid on one side of a phase is adjacent to a side surface of the trapezoid on the other side of the third phase. 【請求項８】 箱体の上部に設けられ前端に負荷側断路
器が貫設された上部絶縁ガス室と、この上部絶縁ガス室
の下側に形成され上極が前記負荷側断路器の下極に接続
される受電用真空遮断器が前端上部に貫設され、この受
電用真空遮断器の下側にこの受電用真空遮断器の下極に
上極が接続される電源側断路器が貫設された下部絶縁ガ
ス室と、前記上部絶縁ガス室の天井部に貫設され下端が
前記負荷側断路器の上極に接続され前記箱体に並設され
た箱体に上部が接続される絶縁ブッシングとを備えた受
電用のガス絶縁金属閉鎖形スイッチギヤ。8. An upper insulating gas chamber provided at an upper portion of a box body and having a load-side disconnector penetrating at a front end thereof, and an upper electrode formed below the upper insulating gas chamber and below the load-side disconnector. A power-receiving vacuum circuit breaker connected to the pole is provided at the upper end of the front end, and a power-supply-side disconnector to which an upper electrode is connected to a lower pole of the power-receiving vacuum circuit breaker extends below the power-receiving vacuum circuit breaker. A lower insulating gas chamber provided, and a lower end connected to the upper pole of the load-side disconnector penetrating through a ceiling portion of the upper insulating gas chamber and an upper part connected to a box juxtaposed to the box. A gas-insulated metal-closed switchgear for receiving power provided with an insulating bushing. 【請求項９】 箱体の中間部に形成され負荷側の変圧器
に接続されるケーブルヘッドが天井部に貫設され前端に
負荷側真空遮断器が貫設されたガス絶縁遮断器室と、こ
のガス絶縁遮断器室の後部と下部に形成され上極が前記
負荷側真空遮断器の下極に接続される断路器が前端に貫
設され、この断路器の下極が下端に接続され前記箱体に
並設された箱体に上部が接続される絶縁ブッシングが天
井部に貫設されたガス絶縁断路器室とを備えたガス絶縁
金属閉鎖形スイッチギヤ。9. A gas insulated circuit breaker chamber having a cable head formed in an intermediate portion of a box body and connected to a transformer on a load side penetrating a ceiling portion and a vacuum circuit breaker on a load side penetrating at a front end. A disconnector formed at the rear and lower portions of the gas-insulated circuit breaker chamber and having an upper electrode connected to a lower electrode of the load-side vacuum circuit breaker is provided at a front end, and a lower electrode of the disconnector is connected to a lower end thereof. A gas insulated metal switchgear comprising a gas insulated disconnector chamber in which an insulating bushing connected to an upper part of a box arranged side by side with a box penetrates a ceiling portion. 【請求項１０】 天井部に絶縁ブッシングが貫設されこ
の絶縁ブッシングの下端に上極が接続される断路器が前
端に貫設され絶縁ガスが封入された断路器室と、この断
路器室の下部と後部に形成され前記断路器の下極に上極
が接続される負荷側真空遮断器が前端に貫設されこの負
荷側真空遮断器の下極に下端が接続され上部が負荷側の
変圧器に接続されるケーブルヘッドが天井部に貫設され
絶縁ガスが封入された遮断器室とを備えたガス絶縁金属
閉鎖形スイッチギヤ。10. A disconnector chamber in which an insulating bushing is provided through the ceiling, an upper electrode is connected to a lower end of the insulating bushing, and a disconnector is provided at a front end of the disconnecting bush and filled with insulating gas. A load-side vacuum circuit breaker formed at a lower portion and a rear portion and having an upper electrode connected to a lower electrode of the disconnector is provided at a front end thereof. A gas-insulated metal-closed switchgear comprising: a circuit breaker chamber in which a cable head connected to a switch penetrates a ceiling and is filled with an insulating gas.
JP9044987A 1996-07-18 1997-02-28 Gas-insulated safety enclosed switchgear Pending JPH1084607A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP9044987A JPH1084607A (en) 1996-07-18 1997-02-28 Gas-insulated safety enclosed switchgear
TW086109504A TW343401B (en) 1996-07-18 1997-07-05 Gas-insulated metal enclosed switchgear
IDP972483A ID18420A (en) 1996-07-18 1997-07-16 CONNECTION TOOLS AND DISTRIBUTORS CLOSED METAL GAS SUPPLIERS
CN97117452A CN1073298C (en) 1996-07-18 1997-07-18 Gas-insulated metal enclosed switchgear
KR1019970033577A KR100271678B1 (en) 1996-07-18 1997-07-18 Gas insulated metal closed type switchgear
MYPI97003267A MY131531A (en) 1996-07-18 1997-07-18 Gas-insulated metal enclosed switchgear.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP18915896 1996-07-18
JP8-189158 1996-07-18
JP9044987A JPH1084607A (en) 1996-07-18 1997-02-28 Gas-insulated safety enclosed switchgear

Publications (1)

Publication Number Publication Date
JPH1084607A true JPH1084607A (en) 1998-03-31

Family

ID=26384949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9044987A Pending JPH1084607A (en) 1996-07-18 1997-02-28 Gas-insulated safety enclosed switchgear

Country Status (6)

Country Link
JP (1) JPH1084607A (en)
KR (1) KR100271678B1 (en)
CN (1) CN1073298C (en)
ID (1) ID18420A (en)
MY (1) MY131531A (en)
TW (1) TW343401B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100364826B1 (en) * 2000-12-12 2002-12-16 엘지산전 주식회사 Power switch for gas insulated fused potential transformer
JP2007104753A (en) * 2005-09-30 2007-04-19 Mitsubishi Electric Corp Gas-insulated switchgear
JP2011061899A (en) * 2009-09-07 2011-03-24 Hitachi Ltd Vacuum insulated switchgear
WO2013021678A1 (en) * 2011-08-05 2013-02-14 三菱電機株式会社 Gas-insulated switchgear

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3107911C2 (en) * 1981-03-02 1985-01-10 Siemens AG, 1000 Berlin und 8000 München Metal-enclosed, gas-filled three-pole medium-voltage switchgear

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100364826B1 (en) * 2000-12-12 2002-12-16 엘지산전 주식회사 Power switch for gas insulated fused potential transformer
JP2007104753A (en) * 2005-09-30 2007-04-19 Mitsubishi Electric Corp Gas-insulated switchgear
JP4624230B2 (en) * 2005-09-30 2011-02-02 三菱電機株式会社 Gas insulated switchgear
JP2011061899A (en) * 2009-09-07 2011-03-24 Hitachi Ltd Vacuum insulated switchgear
WO2013021678A1 (en) * 2011-08-05 2013-02-14 三菱電機株式会社 Gas-insulated switchgear
JP5484638B2 (en) * 2011-08-05 2014-05-07 三菱電機株式会社 Gas insulated switchgear

Also Published As

Publication number Publication date
CN1174432A (en) 1998-02-25
CN1073298C (en) 2001-10-17
KR100271678B1 (en) 2000-11-15
ID18420A (en) 1998-04-09
TW343401B (en) 1998-10-21
KR980012755A (en) 1998-04-30
MY131531A (en) 2007-08-30

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