JPS6062746U

JPS6062746U - Simultaneous closing prevention circuit for breaker group

Info

Publication number: JPS6062746U
Application number: JP15435083U
Authority: JP
Inventors: 甲斐　好夫
Original assignee: 株式会社東芝
Priority date: 1983-10-06
Filing date: 1983-10-06
Publication date: 1985-05-02

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

[Brief explanation of the drawing]

第１図は複数台のしゃ断器を収納した配電盤の主回路の
一例を示す図、第２図は第１図に対応するしゃ断器投入
用制御電源を示す回路図、第３図は従来のしゃ断器の投
入回路図、第４図は本考案を用いたしゃ断器の投入回路
図、第５図は本考案に用いられる同時投入防止リレーの
動作回路の一例を示す図、第６図は本考案の他の実施例
を示す投入回路図である。５・・・・・・配電盤、６．８−１〜８−５・・・・・
・しゃ断器、１０・・・・・・制御電源、１−４−１〜
１４−６・・・・・・操作スイッチ、１９−１・・・・
・・投入指令接点、２２−１・・・・・・例外指令接点
、Ａ−Ｆ・・・・・・補助リレー、Ｘ・−・・・・同時
投入防止リレー、Ｙ・・・・・・同時投入防止用補助リ
レー、Ｔ・・・・・・しゃ断器投入用限時リレＯFigure 1 is a diagram showing an example of the main circuit of a switchboard housing multiple circuit breakers, Figure 2 is a circuit diagram showing the control power supply for turning on the circuit breaker corresponding to Figure 1, and Figure 3 is a diagram of a conventional circuit breaker. 4 is a closing circuit diagram of a breaker using the present invention, FIG. 5 is a diagram showing an example of the operation circuit of the simultaneous closing prevention relay used in the present invention, and FIG. 6 is a diagram showing the operation circuit of the breaker using the present invention. FIG. 3 is a closing circuit diagram showing another embodiment of the present invention. 5...Switchboard, 6.8-1 to 8-5...
- Breaker, 10...Control power supply, 1-4-1~
14-6... Operation switch, 19-1...
... Closing command contact, 22-1 ... Exception command contact, A-F ... Auxiliary relay, X ... Simultaneous closing prevention relay, Y ...... Auxiliary relay for preventing simultaneous closing, T... Time limit relay for closing circuit breaker O

Claims

[Scope of Claim for Utility Model Registration] (1) A command to close when a closing operation command is given to each breaker in the closing cycle of a group of circuit breakers in which each circuit breaker is closed using one control power source. Each circuit breaker is provided with an operation contact that closes later than the command contact and an operation contact that closes later than the command contact, and a simultaneous closing prevention relay that operates when a predetermined number or more of the command contacts close simultaneously. A circuit for preventing simultaneous closing of a group of circuit breakers, characterized in that a closing coil of a corresponding circuit breaker is excited through a series circuit of a normally closed contact of a relay and the operating contact. - (2) A utility model that uses a switch contact that closes when the operating switch is placed on a person as the operating contact, and a switch contact that closes as the command contact immediately after twisting the operating switch toward the entry side. A circuit for preventing simultaneous closing of a group of circuit breakers as claimed in claim 1. (3) Utility Model Registration Claim No. 1 in which a time-limited relay contact that closes after a predetermined time period in response to an automatic closing command is used as the operating contact, and an auxiliary relay contact that closes instantaneously in response to the automatic closing command is used as the command contact. Simultaneous closing prevention circuit for the circuit breaker group described in item 1.