JPH0287912A - Enclosed switchboard - Google Patents

Abstract

PURPOSE:To miniaturize an installation space with a compact design by arranging a high tension main circuit equipment and low tension main circuit equipment to the inside of an enclosed box in which insulating gas such as SF6 gas and the like is sealed. CONSTITUTION:SF6 gas is sealed into the inside of an enclosed box 1 and, at the same time, a low tension main circuit equipment constituted of a power fuse 12, a current transformer 13, a circuit breaker 14, etc., and a high tension main circuit equipment constituted of a disconnecting switch 22, a cable head 23, an outside cable 24, etc., are stored all together. In other words, the low tension main circuit equipment and high tension main circuit equipment were stored to the inside of each independent box so far, and they are now stored to the inside of the same enclosed box 1 in which the SF6 gas is sealed. According to the constitution, an installation space can be reduced as well as compaction.

Description

【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、複数の受電回線と複数の配電回線の間に、複
数バンク構成の変圧器を介し゛て電気的に接続され、高
圧主回路機器および低圧主回路機器を備えた閉鎖配電盤
に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides electrical connection between a plurality of power receiving lines and a plurality of power distribution lines via transformers having a plurality of banks. and relates to closed switchboards equipped with high-voltage main circuit equipment and low-voltage main circuit equipment.

（従来の技術） この種従来の閉鎖配電盤の一例として第３図のように構
成したものがある。第３図は３バンク構成の配電設備を
有する閉鎖配電盤の概略構成を示す斜視図であって、単
線結線図で示しである。(Prior Art) An example of a conventional closed switchboard of this type is one constructed as shown in FIG. FIG. 3 is a perspective view showing a schematic configuration of a closed power distribution board having power distribution equipment having a three-bank configuration, and is shown in a single line diagram.

このうち、１バンクの構成は、低圧閉鎖箱１０、高圧閉
鎖箱２０、変圧器盤３０およびフィーダ盤４０とからな
っている。Among these, one bank consists of a low voltage closed box 10, a high voltage closed box 20, a transformer panel 30, and a feeder panel 40.

低圧閉鎖箱１０は、第５図の詳細な構成図に示すように
、空気を絶縁媒体とした箱１１内に、この前方側にパワ
ーヒユーズ１２、変流器１３およびしゃ断器１４が収納
され、また箱１１内の後方には図示しない配電線としゃ
断器１４を接続する母線１５、しゃ断器１４とパワーヒ
ユーズ１１を接続する接続線１６、パワーフユーズ１１
と変圧器盤３０内の変圧ｒｉ３１の二次端子３２にたわ
み導体３３を介して接続するための接続導体１７がそれ
ぞれ収納されている。As shown in the detailed configuration diagram of FIG. 5, the low-pressure closed box 10 includes a power fuse 12, a current transformer 13, and a breaker 14 housed in a box 11 using air as an insulating medium on the front side. Further, at the rear of the box 11, there is a bus bar 15 that connects the breaker 14 to a distribution line (not shown), a connection line 16 that connects the breaker 14 and the power fuse 11, and a power fuse 11.
and a connecting conductor 17 for connecting to the secondary terminal 32 of the transformer ri 31 in the transformer panel 30 via a flexible conductor 33, respectively.

高圧閉鎖箱２０は、第４図の詳細な構成図に示すように
空気を絶縁媒体とした箱２１内に、この背面には断路器
２２、前方側にはケーブルヘッド２３と外部ケーブル２
４および断路器操作機構２５、また後方側底面には前述
の母線１５を包囲するための隔壁箱２６がそれぞれ収納
されている。As shown in the detailed configuration diagram of FIG. 4, the high voltage closed box 20 is housed in a box 21 using air as an insulating medium, with a disconnector 22 on the back side and a cable head 23 and an external cable 2 on the front side.
4 and a disconnector operating mechanism 25, and a bulkhead box 26 for surrounding the aforementioned bus bar 15 is housed in the rear bottom surface.

なお、２７は正面保護カバー　３４は変圧器３】−の−
次端子、３５は変圧器３１の一次接続導体である。In addition, 27 is the front protective cover, and 34 is the transformer 3]-'s-
The next terminal, 35, is the primary connection conductor of the transformer 31.

（発明が解決しようとする課題） 以上述べたように従来の閉鎖配電盤は、低圧閉鎖箱１０
と高圧閉鎖箱２０は独立した構成となっているので、構
造を簡素化することができず、これにともない設置スペ
ースを縮小化および標準化が図かれなく、製造コストも
高くなる。また、高圧閉鎖箱２０は、箱２１内は特別に
絶縁ガス等を封入せず、単に内部にある空気のみで所定
の絶縁距離を確保しなければならないので、箱２１の容
積が大きくなり、これにともない製造コストも高くなる
。さらに、第３図に示すように２バンク構成以上になる
と、閉鎖配電盤に水平に配設する母線１５は、高圧閉鎖
箱２０を貫通する場合には、第４図に示すように母線１
５を収納するとともに、ＳＦ８ガスを封入する隔壁箱２
６を必要とし、盤の標準化を図ることができない。(Problems to be Solved by the Invention) As described above, the conventional closed switchboard has a low voltage closed box 10
Since the high-pressure closure box 20 and the high-pressure closure box 20 are constructed independently, the structure cannot be simplified, and as a result, the installation space cannot be reduced or standardized, and the manufacturing cost increases. In addition, in the high-pressure closed box 20, the inside of the box 21 is not specially filled with insulating gas, etc., and a predetermined insulation distance must be secured only with the air inside, so the volume of the box 21 becomes large. As a result, manufacturing costs also increase. Furthermore, when the configuration is two banks or more as shown in FIG.
Bulkhead box 2 that stores SF8 gas and also seals SF8 gas.
6 is required, and it is not possible to standardize the board.

そこで、本発明は構造が簡素化でき、コンパクトで設置
スペースの縮小化を図ることができ、標準化が可能な閉
鎖配電盤を提供することを目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a closed power distribution board that can be simplified in structure, compact, and require less installation space, and can be standardized.

［発明の構成］ （課題を解決するための手段） 本発明は、前記［コ的を達成するため、複数の受電回線
と複数の配電回線の間に、複数バンク構成の変圧器を介
して電気的に接続され、しゃ断器、母線等の低圧主回路
機器と、断路器、隔壁箱、母線等からなる高圧主回路機
器を備えた閉鎖配電盤において、ＳＦ６ガス等の絶縁ガ
スを封入した閉鎖箱内に、この後方側および前方側に前
記高圧主回路機器と前記低圧主回路機器をそれぞれ配設
したものである。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides electrical connection between a plurality of power receiving lines and a plurality of power distribution lines via transformers having a plurality of banks. In a closed switchboard equipped with low-voltage main circuit equipment such as circuit breakers, busbars, etc. and high-voltage main circuit equipment consisting of disconnectors, bulkhead boxes, busbars, etc., which are connected to the The high-voltage main circuit equipment and the low-voltage main circuit equipment are arranged on the rear side and the front side, respectively.

（作用） 本発明によれば、ＳＦ８ガス等の絶縁ガスを封入した同
一閉鎖箱内に、高圧主回路機器と低圧主回路機器をそれ
ぞれ配設したので、構造が簡素化でき、コンパクトで設
置スペースの縮小化を図ることができ、標章化が可能と
なる。(Function) According to the present invention, the high-voltage main circuit equipment and the low-voltage main circuit equipment are each arranged in the same closed box filled with an insulating gas such as SF8 gas, so the structure can be simplified, and the installation space is compact. It is possible to reduce the size of the image and make it possible to create a mark.

（実施例） 以下、本発明による閉鎖配電盤の実施例について図面を
参照して説明する。第１図は第３図の従来例のように３
バンク構成の配電設備を有する閉鎖配電盤の概略構成を
示す斜視図であって、単線結線図で示しである。このう
ち、１バンクの構成は、閉鎖箱１、変圧器盤３０および
フィーダ盤４０とからなっている。(Example) Hereinafter, an example of a closed switchboard according to the present invention will be described with reference to the drawings. Figure 1 shows the conventional example shown in Figure 3.
FIG. 1 is a perspective view showing a schematic configuration of a closed power distribution board having power distribution equipment in a bank configuration, and is shown in a single line diagram. Among these, one bank consists of a closed box 1, a transformer panel 30, and a feeder panel 40.

閉鎖箱１は内部にＳＦ６ガスが封入されるとともに、前
述のパワーヒユーズ１２、変流器１３、しゃ断器１４等
の低圧主回路機器および新路器２２、ケーブルヘッド２
３、外部ケーブル２４等からなる高圧主回路機器がとも
に収納さ・れている。The closed box 1 is filled with SF6 gas, and also contains low-voltage main circuit equipment such as the aforementioned power fuse 12, current transformer 13, and breaker 14, a new line switch 22, and a cable head 2.
3. High-voltage main circuit equipment consisting of external cables 24 and the like are housed together.

第２図は第１図の側面図であり、閉鎖箱１内の前方側底
面にはしゃ断器１４が配設され、この上には断路器操作
機構２が配置され、この断路器操作機構２の上方に、変
流器１３およびパワーヒユーズ１２が配設されている。FIG. 2 is a side view of FIG. 1, in which a breaker 14 is disposed on the front bottom surface of the closure box 1, and a disconnector operating mechanism 2 is disposed on top of the breaker 14. A current transformer 13 and a power fuse 12 are arranged above.

また、密閉箱１の後方側には、この底面側に母線１５が
水平に配設され、またこの母線１５の上方の背面には、
断路器２２が配設されている。Further, on the rear side of the sealed box 1, a bus bar 15 is arranged horizontally on the bottom side, and on the back surface above the bus bar 15,
A disconnector 22 is provided.

断路器２２は、密閉箱２２ａ内にＳＦ６ガスが封入され
るとともに、ブレード２２ｂ１枢若導体２２Ｃ、ケーブ
ルヘッド２２ｄ、一端が断路器操作機ｔ１が２に連結さ
れたロッド２２ｅが収納されている。密閉箱２２ａ内の
断路器２２の下部には、地下から立上るように外部ケー
ブル２４が配設され、これがケーブルヘッド２２ｄに接
続されている。The disconnector 22 has an airtight box 22a filled with SF6 gas, and houses a blade 22b1, a pivot conductor 22C, a cable head 22d, and a rod 22e whose one end is connected to the disconnector operating device t1 2. An external cable 24 is disposed below the disconnector 22 in the sealed box 22a so as to rise from underground, and is connected to the cable head 22d.

このような構成の閉鎖箱１の後方側には、変圧器３１を
収納した変圧器盤３０が配置され、断路器２２の上部側
のケ・−プルヘッド２２ｄは変圧器３１の一次端子導体
３４に接続ケーブル３５により接続されている。パワー
フユーズ１２に接続された接続導体１７はたわみ導体３
３を介して変圧器３１の二次端子３２に接続されている
。A transformer panel 30 housing a transformer 31 is arranged at the rear of the closed box 1 having such a configuration, and the cable pull head 22d on the upper side of the disconnector 22 is connected to the primary terminal conductor 34 of the transformer 31. They are connected by a connection cable 35. The connecting conductor 17 connected to the power fuse 12 is the flexible conductor 3
3 to a secondary terminal 32 of a transformer 31.

以上のような各構成は、電気的に次のように接続されて
いる。すなわち、外部ケーブル２４−ケーブルヘッド２
２ｄ−断路器２２−ケーブルヘッド２２ｄ−変圧器３１
の一次接続ケーブルー変圧器３１の一次端子導体３４−
変圧器３１の二次端子３２−たわみ導体３３−接続導体
１７−バワーヒユーズ１２−変流器１３−しゃ断器１４
−母線１５−各フィーダ盤４０である。Each of the above configurations is electrically connected as follows. That is, external cable 24 - cable head 2
2d-disconnector 22-cable head 22d-transformer 31
Primary connection cable - primary terminal conductor 34 of transformer 31 -
Secondary terminal 32 of transformer 31 - Flexible conductor 33 - Connection conductor 17 - Power fuse 12 - Current transformer 13 - Breaker 14
- bus bar 15 - each feeder board 40;

以上述べたことから、本発明の実施例によれば、従来低
圧主回路機器（パワーヒユーズ１２゜変流器１３．しゃ
断器１４）および高圧主回路機器（断路ｒ！２２　、ケ
ーブルヘッド２３．外部ケーブル２４）をそれぞれ独立
した閉鎖箱１１．．２ｉ内に収納していたものを、ＳＦ
６ガスが封入された同一の閉鎖箱１内に収納したので、
構造が簡素され、しかもコンパクトで設置スペースが縮
小でき、製造コストが低減できる。また、高圧主回路機
器は、完全密封されているので、従来のように低圧主回
路機器を収納する閉鎖箱２０と隔壁箱２６を設ける必要
がなく、配電設備の機器配置のレイアウトの自由度を高
めることができ、閉鎖箱の標章化を図ることができる。From the above, according to the embodiment of the present invention, conventional low voltage main circuit equipment (power fuse 12° current transformer 13. breaker 14) and high voltage main circuit equipment (disconnection r! 22, cable head 23. external The cables 24) are placed in separate closed boxes 11. ．． What was stored in 2i, SF
Since they were stored in the same closed box 1 filled with 6 gases,
The structure is simple and compact, reducing installation space and reducing manufacturing costs. In addition, since the high-voltage main circuit equipment is completely sealed, there is no need to provide a closed box 20 and a bulkhead box 26 to house the low-voltage main circuit equipment as in the past, which increases flexibility in the layout of the equipment arrangement of the power distribution equipment. It is possible to increase the number of trademarks and mark the closed box.

さらに、高圧主回路機器と低圧主回路機器はいずれもＳ
Ｆ６ガスが封入された閉鎖箱１内に収納されているので
、保守点検作業が安全であってかつ削減できる。Furthermore, both high-voltage main circuit equipment and low-voltage main circuit equipment are
Since it is housed in a closed box 1 filled with F6 gas, maintenance and inspection work is safe and can be reduced.

なお、本発明は以上述べた実施例に限定されるものでは
なく、高圧主回路機器と低圧主回路機器の配置、その他
を変形してもよい。Note that the present invention is not limited to the embodiments described above, and the arrangement of the high-voltage main circuit equipment and the low-voltage main circuit equipment, etc. may be modified.

［発明の効果コ 本発明によれば、構造が簡素化でき、コンパクトで設置
スペースの縮小化を図ることができ、標準化が可能な閉
鎖配電盤を提供することができる。[Effects of the Invention] According to the present invention, it is possible to provide a closed switchboard that has a simplified structure, is compact, can reduce the installation space, and can be standardized.

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

第１図は本発明による閉鎖配電盤の一実施例の概略構成
を示す斜視図、第２図の第１図の側面図、第３図は従来
の閉鎖配電盤の一例を示す斜視図、第４図および第５図
は第３図の高圧閉鎖箱および低圧閉鎖箱内部を示す側面
図である。 １・・・閉鎖箱、２・・・断路器操作機構、１２・・・
パワーフユーズ、１３・・・変流器、１４・・・しゃ断
器、１５・・・母線、２２・・・断路器、２３・・・ケ
ーブルヘッド、２４・・・外部ケーブル、３０・・・変
圧器盤、３１・・・変圧器。FIG. 1 is a perspective view showing a schematic configuration of an embodiment of a closed switchboard according to the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a perspective view showing an example of a conventional closed switchboard, and FIG. and FIG. 5 is a side view showing the inside of the high-pressure closed box and low-pressure closed box of FIG. 3. 1... Closed box, 2... Disconnector operating mechanism, 12...
Power fuse, 13... Current transformer, 14... Breaker, 15... Bus bar, 22... Disconnector, 23... Cable head, 24... External cable, 30... Transformer Board, 31...Transformer.

Claims (1)

【特許請求の範囲】[Claims] 複数の受電回線と複数の配電回線の間に、複数バンク構
成の変圧器を介して電気的に接続され、し、断器、母線
等の低圧主回路機器と、断路器、隔壁箱、母線等からな
る高圧主回路機器を備えた閉鎖配電盤において、ＳＦ６
ガス等の絶縁ガスを封入した同一閉鎖箱内に、この後方
側および前方側に前記高圧主回路機器と前記低圧主回路
機器をそれぞれ配設した閉鎖配電盤。Electrically connected between multiple power receiving lines and multiple power distribution lines via transformers with multiple banks, and low voltage main circuit equipment such as disconnectors, busbars, disconnectors, bulkhead boxes, busbars, etc. In a closed switchboard equipped with high-voltage main circuit equipment consisting of SF6
A closed switchboard in which the high-voltage main circuit equipment and the low-voltage main circuit equipment are arranged respectively on the rear side and the front side in the same closed box filled with insulating gas such as gas.