JP4686343B2 - Metal closed switchgear - Google Patents

Metal closed switchgear Download PDF

Info

Publication number
JP4686343B2
JP4686343B2 JP2005346947A JP2005346947A JP4686343B2 JP 4686343 B2 JP4686343 B2 JP 4686343B2 JP 2005346947 A JP2005346947 A JP 2005346947A JP 2005346947 A JP2005346947 A JP 2005346947A JP 4686343 B2 JP4686343 B2 JP 4686343B2
Authority
JP
Japan
Prior art keywords
phase detection
box
metal closed
network
phase
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.)
Expired - Fee Related
Application number
JP2005346947A
Other languages
Japanese (ja)
Other versions
JP2007159180A (en
Inventor
洋輔 松野
雅隆 宮崎
秀二 菊地
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 JP2005346947A priority Critical patent/JP4686343B2/en
Publication of JP2007159180A publication Critical patent/JP2007159180A/en
Application granted granted Critical
Publication of JP4686343B2 publication Critical patent/JP4686343B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Patch Boards (AREA)

Description

本発明は、金属閉鎖形スイッチギヤに係り、特にスポットネットワーク受変電設備のプロテクタ盤として用いられる金属閉鎖形スイッチギヤに関する。   The present invention relates to a metal closed type switchgear, and more particularly to a metal closed type switchgear used as a protector panel of a spot network receiving / transforming equipment.

従来、この種のビル、工場などのスポットネットワーク受変電設備のプロテクタ盤として用いられる金属閉鎖形スイッチギヤは、ネットワーク変圧器と負荷間に設けられ、負荷の保護が行われる。そして、これらのネットワーク変圧器や金属閉鎖形スイッチギヤは、電気室の据付面積を縮小化するため、一体化されているものが知られている（例えば、特許文献１参照。）。
実開平５−１１７０６号公報 （第６ページ、図１） Conventionally, a metal closed type switchgear that is used as a protector panel of a spot network receiving / transforming equipment of this type of building, factory, etc. is provided between the network transformer and the load to protect the load. These network transformers and metal closed type switchgear are known to be integrated in order to reduce the installation area of the electric room (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 5-11706 (6th page, Fig. 1)

上記の従来の金属閉鎖形スイッチギヤにおいては、次のような問題がある。
最近のスポットネットワーク受変電設備は、道路などに面した地下孔に設置されることがある。このため、プロテクタ盤として用いられる金属閉鎖形スイッチギヤは、冠水にも耐え得るようにガスケットやOリングを用いた気密構造が採用されている。しかしながら、スポットネットワーク受変電設備のネットワーク変圧器などの点検後においては、主回路がネットワークを組んでいるので、検相が重要な点検項目であり、その都度金属閉鎖形スイッチギヤの気密構造を開放し、主回路導体に検相器を接続して相回転を測定していた。 The conventional metal closed switchgear described above has the following problems.
Recent spot network substation equipment is sometimes installed in underground holes facing roads. For this reason, the metal closed type switchgear used as a protector board adopts an airtight structure using a gasket and an O-ring so as to withstand flooding. However, after the inspection of the network transformer of the spot network receiving / transforming equipment, the main circuit forms a network, so phase inspection is an important inspection item, and the metal-sealed switchgear airtight structure is opened each time. The phase rotation is measured by connecting a phase detector to the main circuit conductor.

このため、ネットワーク変圧器などの点検後に、金属閉鎖形スイッチギヤの気密構造を開放しなくても主回路の検相ができ、検相作業を容易にし得るものが望まれていた。   For this reason, after inspection of a network transformer or the like, it has been desired that the main circuit can be phase-detected without opening the airtight structure of the metal closed type switchgear and the phase-checking work can be facilitated.

本発明は上記問題を解決するためになされたもので、気密構造を開放しなくても主回路の検相が可能となる金属閉鎖形スイッチギヤを提供することを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a metal closed switchgear that enables phase detection of a main circuit without opening an airtight structure.

上記目的を達成するために、本発明の金属閉鎖形スイッチギヤは、地下孔に設置される箱体の天井面に設けられるとともに、ネットワーク変圧器側およびネットワーク母線側の主回路にそれぞれ接続され、且つ前記主回路の相回転を測定する検相用端子と、前記検相用端子に前記箱体外から着脱自在に接続される検相用プラグとを備え、前記箱体の気密を保った状態で、前記検相用プラグが前記検相用端子に接続固定されることを特徴とする。 To achieve the above object, a metal closed type switch gear of the present invention is provided in the ceiling surface of the box to be installed underground hole Rutotomoni are connected to the main circuit of the network transformer side and the network bus side And a phase detection terminal for measuring the phase rotation of the main circuit , and a phase detection plug detachably connected to the phase detection terminal from the outside of the box, and the box is kept airtight. In this state, the phase detection plug is connected and fixed to the phase detection terminal.

本発明によれば、箱体内の一側面に主回路と接続された検相用端子を設け、箱体外からこの検相用端子に着脱自在で気密を保って検相用プラグを接続するようにしているので、スポットネットワーク受変電設備の点検後に、箱体の気密構造を開放しなくても主回路の検相を行うことができ、検相作業を容易にすることができる。   According to the present invention, the phase detection terminal connected to the main circuit is provided on one side surface of the box, and the phase detection plug is connected to the phase detection terminal from the outside of the box in a detachable and airtight manner. Therefore, after the inspection of the spot network receiving / transforming equipment, the phase detection of the main circuit can be performed without opening the airtight structure of the box body, and the phase detection operation can be facilitated.

以下、図面を参照して本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

本発明の実施例に係る金属閉鎖形スイッチギヤを図１乃至図４を参照して説明する。図１は、本発明の実施例に係る金属閉鎖形スイッチギヤの構成を示す正面図、図２は、本発明の実施例に係る金属閉鎖形スイッチギヤの単線結線図、図３は、本発明の実施例に係る金属閉鎖形スイッチギヤの運転時の要部拡大図、図４は、本発明の実施例に係る金属閉鎖形スイッチギヤの検相時の要部拡大図である。なお、金属閉鎖形スイッチギヤをスポットネットワーク受変電設備のプロテクタ盤を用いて説明する。   A metal closed switchgear according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view showing a configuration of a metal closed switchgear according to an embodiment of the present invention, FIG. 2 is a single line connection diagram of a metal closed switchgear according to an embodiment of the present invention, and FIG. FIG. 4 is an enlarged view of a main part at the time of phase detection of the metal closed switchgear according to the embodiment of the present invention. The metal closed type switchgear will be described using a protector panel of a spot network receiving / transforming equipment.

図１に示すように、箱体１内には、図示上段にプロテクタヒューズ２、中段にプロテクタ遮断器３、下段にネットワークリレー４および制御電源５が設けられている。なお、図１は、気密をするための図示しない蓋を取り外した状態である。   As shown in FIG. 1, a protector fuse 2 is provided in the upper part of the figure, a protector circuit breaker 3 is provided in the middle part, and a network relay 4 and a control power source 5 are provided in the lower part. FIG. 1 shows a state where a lid (not shown) for airtightness is removed.

以下、図１および図２を参照して説明する。箱体１の図示上部には、ネットワーク変圧器側ブッシング６が設けられ、接続導体７によりプロテクタ遮断器３の一方の主回路端子に接続されている。接続導体７には、計器用変流器８が接続され、二次側が短絡片９と保護抵抗１０とを介してネットワークリレー４に接続されている。プロテクタ遮断器３の他方の主回路端子には、プロテクタヒューズ２が接続され、箱体１の図示上部（図２では図示下部）に設けたネットワーク母線側ブッシング１１に接続されている。   Hereinafter, a description will be given with reference to FIGS. 1 and 2. A network transformer side bushing 6 is provided on the upper portion of the box 1 in the figure, and is connected to one main circuit terminal of the protector circuit breaker 3 by a connection conductor 7. An instrument current transformer 8 is connected to the connection conductor 7, and the secondary side is connected to the network relay 4 via a short-circuit piece 9 and a protective resistor 10. A protector fuse 2 is connected to the other main circuit terminal of the protector circuit breaker 3, and is connected to a network bus side bushing 11 provided in the upper part of the box 1 (the lower part of the figure in FIG. 2).

箱体１内のネットワーク変圧器側ブッシング６端子には、計器用変圧器１２ａが保護抵抗１０を介して接続されている。計器用変圧器１２ａの二次側には、箱体１と気密を保って、主回路の相回転を測定する検相用端子１３が接続されている。ネットワーク母線側ブッシング１１端子にも、計器用変圧器１２ｂが保護抵抗１０を介して接続され、二次側が検相用端子１３に接続されている。これらの計器用変圧器１２ａ、１２ｂの二次側は、ネットワークリレー４にも接続されている。   An instrument transformer 12 a is connected via a protective resistor 10 to the network transformer-side bushing 6 terminal in the box 1. A phase detection terminal 13 for measuring the phase rotation of the main circuit is connected to the secondary side of the instrument transformer 12a while maintaining airtightness with the box 1. An instrument transformer 12 b is also connected to the network bus-side bushing 11 terminal via the protective resistor 10, and a secondary side is connected to the phase detection terminal 13. The secondary sides of these instrument transformers 12 a and 12 b are also connected to the network relay 4.

また、ネットワーク変圧器側ブッシング６端子には、計器用変圧器１４ａが保護抵抗１０を介して接続されており、二次側が制御電源５に接続されている。ネットワーク母線側ブッシング１１端子にも、計器用変圧器１４ｂが保護抵抗１０を介して接続されており、二次側が制御電源５に接続されている。制御電源５からは、非常用電源端子１５が取り出されている。   Further, an instrument transformer 14 a is connected to the network transformer-side bushing 6 terminal via the protective resistor 10, and a secondary side is connected to the control power supply 5. An instrument transformer 14 b is also connected to the network bus side bushing 11 terminal via the protective resistor 10, and the secondary side is connected to the control power supply 5. An emergency power supply terminal 15 is taken out from the control power supply 5.

箱体１外の図示上部（天井部）には、プロテクタ遮断器３などを制御する制御用プラグ１６がＯリングを介してボルト１７で取り付けられている。また、検相用端子１３に接続される検相用プラグ１８が着脱自在にＯリングやガスケットを介してボルト１７で取り付けられている。検相用プラグ１８は、多芯ケーブルであり三相分の検相が行えるようになっている。また、検相用プラグ１８を外したときには、その開口部を気密に塞ぐための蓋１９が別置されている。なお、ネットワーク変圧器側ブッシング６とネットワーク母線側ブッシング１１は、保護カバー２０で保護されている。制御用プラグ１６は、支え板２１で固定されるようになっている。 A control plug 16 for controlling the protector circuit breaker 3 and the like is attached to the upper portion (ceiling portion) of the figure outside the box 1 with a bolt 17 via an O-ring. Further, a phase detection plug 18 connected to the phase detection terminal 13 is detachably attached by a bolt 17 via an O-ring or a gasket. The phase detection plug 18 is a multi-core cable and can perform phase detection for three phases. In addition, when the phase detection plug 18 is removed, a lid 19 is installed separately for hermetically closing the opening. The network transformer side bushing 6 and the network bus side bushing 11 are protected by a protective cover 20. The control plug 16 is fixed by a support plate 21.

次に、スポットネットワーク受変電設備のネットワーク変圧器などの点検後の主回路の検相方法を図３および図４を参照して説明する。   Next, a phase detection method for the main circuit after inspection of the network transformer of the spot network receiving / transforming equipment will be described with reference to FIGS.

図３に示すように、スポットネットワーク受変電設備の運転中には、蓋１９が取り付けられ、検相用プラブ１８を挿入する開口部の気密が保持されている。そして、ネットワーク変圧器などの点検後には、図４に示すように、蓋１９を外し、検相用プラブ１８を開口部に挿入し、検相用端子１３と接続する。検相用プラグ１８の端子に図示しない検相器を接続すれば、主回路の相回転を測定することができる。   As shown in FIG. 3, during the operation of the spot network receiving / transforming equipment, the lid 19 is attached, and the airtightness of the opening for inserting the phase detection plug 18 is maintained. After the inspection of the network transformer or the like, as shown in FIG. 4, the lid 19 is removed, the phase detection probe 18 is inserted into the opening, and connected to the phase detection terminal 13. If a phase detector (not shown) is connected to the terminal of the phase detection plug 18, the phase rotation of the main circuit can be measured.

相回転の測定時においては、図示しないＯリングやガスケットを介して検相用プラブ１８をボルト１７で固定し、気密を保っているので、例えば冠水などに耐え得るものとなる。即ち、箱体１の気密構造を開放することなく、気密を保った状態で検相用プラグ１８を検相用端子１３に接続固定することができる。検相後は、検相用プラグ１８を外し、蓋１９を取り付ける。   At the time of measuring the phase rotation, the phase detection probe 18 is fixed with the bolt 17 via an O-ring or a gasket (not shown) and is kept airtight, so that it can withstand, for example, submergence. That is, the phase detection plug 18 can be connected and fixed to the phase detection terminal 13 while keeping the airtightness without opening the airtight structure of the box 1. After phase detection, the phase detection plug 18 is removed and a lid 19 is attached.

上記実施例１の金属閉鎖形スイッチギヤによれば、箱体１の天井部に主回路と接続された検相用端子１３を設け、箱体１外からこの検相用端子１３に着脱自在の検相用プラグ１８を接続するようにしているので、スポットネットワーク受変電設備の点検後に、箱体１の気密構造を開放しなくても主回路の相回転を測定することができ、検相作業を容易にすることができる。   According to the metal closed type switchgear of the first embodiment, the phase detection terminal 13 connected to the main circuit is provided on the ceiling of the box body 1, and the phase detection terminal 13 can be attached to and detached from the outside of the box body 1. Since the phase detection plug 18 is connected, the phase rotation of the main circuit can be measured without opening the airtight structure of the box 1 after the inspection of the spot network receiving / transforming equipment. Can be made easier.

なお、本発明は、上記実施例に限定されるものではなく、発明の要旨を逸脱しない範囲で、種々変形して実施することができる。上記実施例では、検相用プラグ１８を箱体１の天井部で着脱するようにして説明したが、箱体１の周りに検相用プラグ１８を着脱するスペースがあれば、検相用プラグ１８を接続固定する個所が箱体１の側面や床面でもよい。なお、地下孔に設置される金属閉鎖形スイッチギヤでは、箱体１の天井部に比較的に作業スペースがとれ易い。   In addition, this invention is not limited to the said Example, In the range which does not deviate from the summary of invention, it can implement in various deformation | transformation. In the above embodiment, the phase detection plug 18 has been described as being attached / detached at the ceiling of the box 1. However, if there is a space for attaching / detaching the phase detection plug 18 around the box 1, the phase detection plug 18 may be used. The place where 18 is connected and fixed may be the side surface or floor surface of the box 1. In addition, in the metal closed type switchgear installed in the underground hole, a working space can be relatively easily taken in the ceiling portion of the box 1.

本発明の実施例に係る金属閉鎖形スイッチギヤの構成を示す正面図。The front view which shows the structure of the metal closed type switchgear which concerns on the Example of this invention. 本発明の実施例に係る金属閉鎖形スイッチギヤの単線結線図。The single wire connection diagram of the metal closed type switchgear which concerns on the Example of this invention. 本発明の実施例に係る金属閉鎖形スイッチギヤの運転時の要部拡大図。The principal part enlarged view at the time of the driving | operation of the metal closed type switchgear which concerns on the Example of this invention. 本発明の実施例に係る金属閉鎖形スイッチギヤの検相時の要部拡大図。The principal part enlarged view at the time of phase detection of the metal closed type switchgear which concerns on the Example of this invention.

符号の説明Explanation of symbols

１ 箱体
２ プロテクタヒューズ
３ プロテクタ遮断器
４ ネットワークリレー
５ 制御電源
６ ネットワーク変圧器側ブッシング
７ 接続導体
８ 計器用変流器
９ 短絡片
１０ 保護抵抗
１１ ネットワーク母線側ブッシング
１２ａ、１２ｂ、１４ａ、１４ｂ 計器用変圧器
１３ 検相用端子
１５ 非常用電源端子
１６ 制御用プラグ
１７ ボルト
１８ 検相用プラグ
１９ 蓋
２０ 保護カバー
２１ 支え板 DESCRIPTION OF SYMBOLS 1 Box body 2 Protector fuse 3 Protector breaker 4 Network relay 5 Control power supply 6 Network transformer side bushing 7 Connection conductor 8 Current transformer 9 Short circuit piece 10 Protection resistor 11 Network bus side bushing 12a, 12b, 14a, 14b Instrument Transformer 13 phase detection terminal 15 emergency power terminal 16 control plug 17 bolt 18 phase detection plug 19 lid 20 protective cover 21 support plate

Claims (1)

地下孔に設置される箱体の天井面に設けられるとともに、ネットワーク変圧器側およびネットワーク母線側の主回路にそれぞれ接続され、且つ前記主回路の相回転を測定する検相用端子と、
前記検相用端子に前記箱体外から着脱自在に接続される検相用プラグとを備え、
前記箱体の気密を保った状態で、前記検相用プラグが前記検相用端子に接続固定されることを特徴とする金属閉鎖形スイッチギヤ。 Rutotomoni provided in the ceiling surface of the box to be installed underground hole, are connected to the main circuit of the network transformer side and the network bus side, and and test phase terminal for measuring the phase rotation of the main circuit,
A phase detection plug detachably connected to the phase detection terminal from the outside of the box,
The metal closed switchgear, wherein the phase detection plug is connected and fixed to the phase detection terminal in a state where the box is kept airtight.
JP2005346947A 2005-11-30 2005-11-30 Metal closed switchgear Expired - Fee Related JP4686343B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005346947A JP4686343B2 (en) 2005-11-30 2005-11-30 Metal closed switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005346947A JP4686343B2 (en) 2005-11-30 2005-11-30 Metal closed switchgear

Publications (2)

Publication Number Publication Date
JP2007159180A JP2007159180A (en) 2007-06-21
JP4686343B2 true JP4686343B2 (en) 2011-05-25

Family

ID=38242836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005346947A Expired - Fee Related JP4686343B2 (en) 2005-11-30 2005-11-30 Metal closed switchgear

Country Status (1)

Country Link
JP (1) JP4686343B2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0397842U (en) * 1990-01-25 1991-10-09
JPH0553092U (en) * 1991-12-24 1993-07-13 日新電機株式会社 Grounding device
JPH0677409U (en) * 1993-04-12 1994-10-28 東芝エンジニアリング株式会社 Voltage presence / absence display device for PT test terminal
JP2001286018A (en) * 2000-04-03 2001-10-12 Toshiba Corp Switch gear
JP2002078123A (en) * 2000-08-29 2002-03-15 Fuji Electric Co Ltd Attachment structure of voltage detection insulator for enclosed electrical equipment in container
JP2007151306A (en) * 2005-11-28 2007-06-14 Toshiba Corp Closed type metallic switch gear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647548Y2 (en) * 1980-08-21 1989-02-28
JP3587389B2 (en) * 1994-03-18 2004-11-10 株式会社東芝 Conductor support
JPH09219912A (en) * 1996-02-15 1997-08-19 Nissin Electric Co Ltd Gas-insulated equipment fitted with current detecting electrode

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0397842U (en) * 1990-01-25 1991-10-09
JPH0553092U (en) * 1991-12-24 1993-07-13 日新電機株式会社 Grounding device
JPH0677409U (en) * 1993-04-12 1994-10-28 東芝エンジニアリング株式会社 Voltage presence / absence display device for PT test terminal
JP2001286018A (en) * 2000-04-03 2001-10-12 Toshiba Corp Switch gear
JP2002078123A (en) * 2000-08-29 2002-03-15 Fuji Electric Co Ltd Attachment structure of voltage detection insulator for enclosed electrical equipment in container
JP2007151306A (en) * 2005-11-28 2007-06-14 Toshiba Corp Closed type metallic switch gear

Also Published As

Publication number Publication date
JP2007159180A (en) 2007-06-21

Similar Documents

Publication Publication Date Title
KR100876586B1 (en) Metal-clad compartment and air-insulated compact panel
EP3076506B1 (en) Electrical enclosure including an exhaust duct and method
KR200429128Y1 (en) airtight electric distribution panel capable of checking degradation of bus bar
JP4686343B2 (en) Metal closed switchgear
US20210305789A1 (en) Three phase switchgear or control gear
CN209993929U (en) Electric control cabinet with fault feedback function
JP4679353B2 (en) Metal closed switchgear
KR20130137276A (en) Transparent distribution box
KR200360638Y1 (en) Digital measurement and control box for distributing board
JP3521678B2 (en) High-voltage power receiving equipment
CN210838592U (en) Distribution box with line concentration function
KR200443499Y1 (en) The cable safety device having inner cover panel
CN219873296U (en) Circuit breaker mechanism box on secondary degree of depth fuses post
JP7306041B2 (en) control panel
KR101640748B1 (en) Power monitoring distribution board for easy maintenance
CN110911998B (en) Automatic distribution box of line concentration
JP5622979B1 (en) Switchgear
CN212812421U (en) Breaker switch board structure
JPH01138908A (en) Gas insulation switching controller
JP2005051909A (en) Distribution board
JP5137698B2 (en) Switchgear and installation method thereof
JP3131499U (en) Skeleton type low voltage switchboard
CN209881172U (en) Electric automatization safety block terminal
JP3130212U (en) Device adapter for memory recorder measurement line connection
JPH035076Y2 (en)

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080724

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100924

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101109

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101222

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110121

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110214

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140218

Year of fee payment: 3

R151 Written notification of patent or utility model registration

Ref document number: 4686343

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140218

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees