JPS5879441A - Remote switching circuit for electric facility - Google Patents
Remote switching circuit for electric facilityInfo
- Publication number
- JPS5879441A JPS5879441A JP17568381A JP17568381A JPS5879441A JP S5879441 A JPS5879441 A JP S5879441A JP 17568381 A JP17568381 A JP 17568381A JP 17568381 A JP17568381 A JP 17568381A JP S5879441 A JPS5879441 A JP S5879441A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- switching circuit
- cable
- remote switching
- battery
- 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
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は電気所設備の遠方切替回路の改良に関する。[Detailed description of the invention] The present invention relates to improvements in remote switching circuits for electrical station equipment.
発（所、変電所等の電気所設備は中央盤と遠く離れた現
場盤とから構成されている。中央盤には複数の切替スイ
ッチを設けている。切替スイッチは現場盤に設けた複数
の投入スイッチとケーブルを介して接続している。複数
の切替スイッチと複数の投入スイッチとの間の各々′は
、並列に配置されている。投入スイッチを励磁、無励磁
にすることにより、しゃ断器は投入、しゃ断をする。切
替スイッチおよび投入スイッチの一端は、電池の正極お
よび負極に接続している。電池の正極は接地線を介して
接地している。したがって、切替スイッチを閉じれば、
電流は、電池の正極→切替スイッチ→ケーブル→投入ス
イッチ→負極の順に流れる。現場盤たとえばしゃ断器、
断路部等の電気機器を保守・点検する時には、切替スイ
ッチを開いた状態にして、現場盤に電流を流れないよう
にして行なう。Electrical station equipment such as power stations and substations consists of a central panel and distant field panels.The central panel is equipped with multiple changeover switches. It is connected to the closing switch via a cable.The plural changeover switches and the plurality of closing switches are arranged in parallel.By energizing or de-energizing the closing switch, the breaker turns on and off.The changeover switch and one end of the make-on switch are connected to the positive and negative poles of the battery.The positive pole of the battery is grounded via the ground wire.Therefore, when the changeover switch is closed,
Current flows in the order of battery positive electrode → selector switch → cable → closing switch → negative electrode. On-site panel, such as a circuit breaker,
When maintaining or inspecting electrical equipment such as disconnectors, keep the changeover switch open to prevent current from flowing to the field panel.
ところで、中央盤と現場盤との間は、距離数１００ｍ離
れて、ケーブルを埋設する場合もある。By the way, the cable may be buried several hundred meters away between the central panel and the field panel.
ケーブルを埋設した個所にブルドーザなどが通過すると
、ケーブルを切断して、地絡事故を起こすことがある。If a bulldozer or similar vehicle passes through a place where cables are buried, the cables may be severed, causing a ground fault.
地絡事故たとえば切替スイッチと投入スイッチとの間の
ケーブルで生じると、地絡事故個所に接地線から地絡電
流が流れる。地絡′電流は、地絡事故個所→没入スイッ
チ→負極に流れる。When a ground fault occurs, for example, in a cable between a changeover switch and a closing switch, a ground fault current flows from the ground wire to the location of the ground fault. The ground fault current flows from the ground fault location to the immersion switch to the negative pole.
そうすると、現場盤で保守・点検をしている作業が感電
する恐れがある。If this happens, there is a risk of electric shock to those performing maintenance and inspection at the field panel.
本発明の目的は、現場盤での感電事故をなくした安全な
電気所設備の遠方切替回路を提供することにある。An object of the present invention is to provide a safe remote switching circuit for electrical plant equipment that eliminates electric shock accidents at field panels.
以下、本発明の実施列を図面に示す電気所設備の遠方切
替回路１により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An implementation of the present invention will be explained below using a remote switching circuit 1 for electric station equipment shown in the drawings.
中央盤２には、腹数個の切替スイッチ３Ａ〜３Ｃと切替
スイッチと同じ動作をする補助スイッチ４Ａ〜４Ｃを並
置する。切替スイッチ３は遠く離れた現場盤５の投入ス
イッチ６Ａ〜６Ｂに第１ケーブル７Ａ〜７Ｃを介して直
列啜続している。各投入スイッチは図示していないしゃ
断器と接続し、投入スイッチを励磁したり、無励磁にし
たり、つ″！シ開閉して、しゃ断器を投入・しゃ断する
。投入スイッチ６八〜６Ｂの各々の一端は第２ケーブル
８に接続され、第２ケーブル８は補助スイッチ４Ａに接
続している。第２ケーブル８と残りの補助スイッチ４Ｂ
、４Ｃの一端は、連絡線９により接続している。各補助
スイッチ４八〜４Ｃの曲端は、電池１０の負極１１に接
続している。電池１０の正極１２は切替スイッチ３Ａ〜
３Ｃの一端と接続すると共に、接地線１３を介して接地
１４している。On the center panel 2, several changeover switches 3A to 3C and auxiliary switches 4A to 4C which operate in the same way as the changeover switches are arranged side by side. The changeover switch 3 is connected in series to input switches 6A to 6B on a remote field panel 5 via first cables 7A to 7C. Each closing switch is connected to a breaker (not shown), and the closing switch is energized, de-energized, and opened/closed to close and close the breaker.Each of the closing switches 68 to 6B One end is connected to the second cable 8, and the second cable 8 is connected to the auxiliary switch 4A.The second cable 8 and the remaining auxiliary switch 4B are connected to each other.
, 4C are connected by a connecting line 9. The curved ends of each of the auxiliary switches 48 to 4C are connected to the negative electrode 11 of the battery 10. The positive electrode 12 of the battery 10 is connected to the changeover switch 3A~
It is connected to one end of 3C and is also grounded 14 via a grounding wire 13.
次に、遠方切替回路１の動作について説明する。Next, the operation of the remote switching circuit 1 will be explained.
通常時、切替スイッチ３を閉じると、それに応じて補助
スイッチも閉じる。そのため、正極１２−切替スイッチ
３−第１ケーブル７−投入スイッチ６−第２ケーブル８
一連絡線９−補助スイッチ４−負極１１に流れる。現場
盤５側で保守・点検する時、切替スイッチ３および補助
スイヅチ４を開放した状態で行なうので、現場盤５には
電流が流ｒない。Normally, when the selector switch 3 is closed, the auxiliary switch is also closed accordingly. Therefore, positive electrode 12 - selector switch 3 - first cable 7 - closing switch 6 - second cable 8
Flows from one connecting line 9 to the auxiliary switch 4 to the negative electrode 11. When maintenance and inspection are performed on the field panel 5 side, the changeover switch 3 and the auxiliary switch 4 are opened, so no current flows through the field panel 5.
この状態で、第１ケーブル７Ａの１部に地絡事故１５が
起きたとすると、地絡電流１．は、地絡事故１５→第１
ケーブル７Ａ→投入スイツチ６Ａ→第２ケーブル８を介
して流れることはない。何故ならば、補助スイッチ４が
開放されているからである。したがって、現場盤側では
感電する恐れがない。また、連絡線９を設けたので、第
２ケーブル８は最少では１本でよく、最大では本数をｎ
とすれば、２ｎ−１本でよい。このように連絡線９を設
けることにより、第２ケーブルを１本から２１−１の範
囲内で任意に選択できる。したがって、ケーブル布施作
業、接続作業を任意に調整できる。In this state, if a ground fault 15 occurs in a part of the first cable 7A, the ground fault current 1. is ground fault accident 15 → 1st
It does not flow through the cable 7A → the input switch 6A → the second cable 8. This is because the auxiliary switch 4 is open. Therefore, there is no risk of electric shock on the field panel side. In addition, since the connecting line 9 is provided, the number of second cables 8 may be at least one, and at the maximum the number may be n.
If so, 2n-1 pieces are sufficient. By providing the communication line 9 in this way, the number of second cables can be arbitrarily selected within the range of 1 to 21-1. Therefore, cable installation work and connection work can be adjusted as desired.
以上のように本発明の電気所設備の遠方切替回路によれ
ば、感電することなく、安全である。As described above, according to the remote switching circuit for electric station equipment of the present invention, there is no electric shock and it is safe.
図は本発明の実施例として示した電気所設備の遠方切替
回路図である。The figure is a remote switching circuit diagram of electric station equipment shown as an embodiment of the present invention.
Claims (1)
開閉器を開閉する投入スイッチとの間を第１ケーブルで
連絡し、上記各切替スイッチおよび各投入スイッチの一
端を電池の正極および負極と接続し、上記電池の正極に
接続した線地線を介して接地したものにおいて、上記各
切替スイッチと同動作をする補助スイッチを設け、補助
スイッチの一端を負極に、他端を第２ケーブルを介して
投入スイッチに接続することを特徴とする電気所設備の
遠方切替回路。 ２、一端を負極に接続した少なくとも１つ以上の補助ス
イッチの他端と、投入スイッチの一端との間を第２ケー
ブルで接続し、第２ケーブルと残りの補助スイッチとの
間を連絡線で接続することを特徴とする特許請求の範囲
第１項記載の電気所設備の遠方切替回路。[Claims] 1. A plurality of changeover switches are arranged side by side, each changeover switch and a closing switch for opening and closing a switch are connected by a first cable, and one end of each changeover switch and each closing switch is connected to a battery. Connected to the positive and negative terminals of the battery, and grounded via a wire connected to the positive terminal of the battery, an auxiliary switch that operates in the same manner as each of the changeover switches described above is provided, and one end of the auxiliary switch is set to the negative pole, and the other end is connected to the negative pole of the battery. A remote switching circuit for electrical station equipment, characterized in that the circuit is connected to a closing switch via a second cable. 2. Connect the other end of at least one auxiliary switch whose one end is connected to the negative pole and one end of the closing switch with a second cable, and connect the second cable and the remaining auxiliary switches with a connecting wire. 2. A remote switching circuit for electric station equipment according to claim 1, wherein the remote switching circuit is connected to a remote switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17568381A JPS5879441A (en) | 1981-11-04 | 1981-11-04 | Remote switching circuit for electric facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17568381A JPS5879441A (en) | 1981-11-04 | 1981-11-04 | Remote switching circuit for electric facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5879441A true JPS5879441A (en) | 1983-05-13 |
Family
ID=16000404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17568381A Pending JPS5879441A (en) | 1981-11-04 | 1981-11-04 | Remote switching circuit for electric facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5879441A (en) |
-
1981
- 1981-11-04 JP JP17568381A patent/JPS5879441A/en active Pending
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