JPS59185934U

JPS59185934U - Electric leakage or disconnection

Info

Publication number: JPS59185934U
Application number: JP8245483U
Authority: JP
Inventors: 牧永　仁
Original assignee: 松下電工株式会社
Priority date: 1983-05-30
Filing date: 1983-05-30
Publication date: 1984-12-10

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 the drawing]

図面第１図及び第２図は本考案の漏電しゃ断器の一実施
例を示し、第１図は回路図、第２図は第１図の回路図の
動作タイムチャート図である。１．１・・・電路、２・・・零相変流器、２ｂ・・・２
次巻線、４・・・増幅回路、４ａ、　　４ｂ・・・入、
力端子、８・・・スイッチング素子、１１・・・引外し
コイル、１２・・・電路接点、１３・・・限流抵抗、１
４・・・整流平滑回路、１８・・・平滑コンデンサ、１
９・・・コンデンサ、２１゜２２．２３・・・、コンデ
ンサ、Ｇ・・・アース。1 and 2 show an embodiment of the earth leakage breaker of the present invention, FIG. 1 is a circuit diagram, and FIG. 2 is an operation time chart of the circuit diagram in FIG. 1. 1.1...Electric circuit, 2...Zero phase current transformer, 2b...2
Next winding, 4...Amplification circuit, 4a, 4b...In,
Power terminal, 8... Switching element, 11... Trip coil, 12... Electric circuit contact, 13... Current limiting resistor, 1
4... Rectifier smoothing circuit, 18... Smoothing capacitor, 1
9...Capacitor, 21°22.23..., Capacitor, G...Ground.

Claims

[Scope of utility model registration request]

A zero-phase current transformer that detects a leakage current flowing in an electric line, an amplifier circuit that is supplied with power from the electric line through a rectifying and smoothing circuit, which connects the secondary winding of this zero-phase current transformer to an input terminal, and An earth leakage breaker consisting of a switching element that performs a switching operation in response to an output signal from an amplifier circuit, and a tripping coil that opens a circuit contact provided in the circuit in response to the operation of the knee switching element. , a capacitor is connected between the input terminals of the amplifier circuit and between both input terminals and the ground, and a current-limiting resistor is connected to the input of a rectifier and smoothing circuit that collects power to the amplifier circuit; An earth leakage breaker characterized by a smoothing capacitor connected to a capacitor with a smaller capacity than the smoothing capacitor.