JPS58108728U

JPS58108728U - Electric leakage or disconnection

Info

Publication number: JPS58108728U
Application number: JP16333782U
Authority: JP
Inventors: 山木　正一
Original assignee: 富士電機株式会社
Priority date: 1982-10-28
Filing date: 1982-10-28
Publication date: 1983-07-25
Also published as: JPS642501Y2

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]

第１図〜第３図は本考案による漏電しゃ断器の漏電検出
原理を説明するための図で、第１図は漏電しゃ断器要部
および警戒回路の結線図、第２図は警戒回路健全時にお
ける変成器の作用を示す線−図、第３図は漏電発生時の
変成器の作用を示す線図、第４図は本考案による漏電し
ゃ断器の実施例の結線図である。　　　　− １・・・変成器、２・・・鉄心、３・・・−次コイル、
４・・・二次コイル、５・・・警戒主回路、８・・・開
閉しゃ断部、１０・・・閉鎖電磁石、１１・・・永久磁
石、１２・・・継鉄、１４・・・接極子、１６．１７・
・・励磁コイル。 ′２−３聞１４図Figures 1 to 3 are diagrams for explaining the leakage detection principle of the earth leakage breaker according to the present invention. Figure 1 is a wiring diagram of the main parts of the earth leakage breaker and the warning circuit, and Figure 2 is when the warning circuit is healthy. FIG. 3 is a line diagram showing the action of the transformer when an earth leakage occurs, and FIG. 4 is a wiring diagram of an embodiment of the earth leakage breaker according to the present invention. - 1...Transformer, 2...Iron core, 3...-order coil,
4...Secondary coil, 5...Warning main circuit, 8...Opening/closing breaker, 10...Closing electromagnet, 11...Permanent magnet, 12...Yoke, 14...Connection Polar child, 16.17・
...excitation coil. '2-3, Figure 14

Claims

[Scope of utility model registration request]

The warning circuit is a DC circuit, an opening/closing means for opening and closing the warning circuit, an annular core through which the warning circuit is fully inserted and magnetically saturated by the DC leakage current of the circuit, a primary coil wound around the annular core and excited with alternating current; an oscillator that supplies AC power to the secondary coil from the warning circuit; a secondary coil in which an AC voltage is induced by AC magnetic flux in the annular core that is wound around the annular core and excited by the primary coil; It is equipped with a yoke and an armature and is excited by direct current by a permanent magnet, and the above-mentioned -
A closing electromagnet around which is wound a first excitation coil through which an alternating current excitation current flows to the secondary coil and a second excitation coil excited by an alternating current voltage induced in the secondary coil, and the armature is a yoke. A tripping mechanism is provided to open the opening/closing means when the circuit is separated from the opening/closing means, so that when the warning circuit is healthy, the alternating current excitation ampere turns of the first excitation coil and the second excitation coil are approximately equal and cancel each other out. An earth leakage breaker characterized by comprising: