JPS60103230U

JPS60103230U - Circuit breaker tripping circuit monitoring device

Info

Publication number: JPS60103230U
Application number: JP19520483U
Authority: JP
Inventors: 裕山田; 須田　典夫
Original assignee: 株式会社明電舎
Priority date: 1983-12-19
Filing date: 1983-12-19
Publication date: 1985-07-13

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の遮断器外用し回路の監視装置の回路構成
例を示す回路図、第２図は本考案の一実施例を示す回路
図である。ＴＣ・・・遮断器の引外しコイル、ＴＸ及びＴＹ・・・
シールインリに一１ＫＸｌ〜ＫＸ３・・・監視リレー、
ＫＸ　１−１　ａ％ＫＸ３−１　ａ”’リレー常開接点
、ＫＸＩ−１ｂ−ＫＸ３−１　ｂ・・・リレー常閉接点
、Ｔ・・・タイマー、５２ａ・・・遮断器パレットスイ
ッチ。FIG. 1 is a circuit diagram showing an example of the circuit configuration of a conventional circuit breaker monitoring device for external use, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. TC... tripping coil of circuit breaker, TX and TY...
1KXl~KX3...monitoring relay in seal inri,
KX 1-1 a%KX3-1 a"' Relay normally open contact, KXI-1b-KX3-1 b... Relay normally closed contact, T... Timer, 52a... Circuit breaker pallet switch.

Claims

[Scope of utility model registration request]

A normally closed contact of a seal-ron relay that forms an excitation circuit for the circuit breaker tripping coil, an OR circuit with a normally open contact of a monitoring relay in which an excitation coil is connected in parallel to the self-holding circuit of the seal-in circuit, and the monitoring relay. A circuit breaker tripping circuit monitoring device comprising: an OR circuit with normally closed contacts; and a time limit circuit that outputs an abnormality detection signal when the conditions of the two-wheel OR sum circuit are satisfied and continue for a certain period of time or more.