JPS58638U

JPS58638U - nose breaker

Info

Publication number: JPS58638U
Application number: JP9313681U
Authority: JP
Inventors: 上符　敏昭
Original assignee: 株式会社明電舎
Priority date: 1981-06-24
Filing date: 1981-06-24
Publication date: 1983-01-05

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図は本考案に係るＮＦＢの一実施例を示す要部回路
図、第２図は本考案の他の実施例を示す要部回路図、第
３図は本考案に係るＮＦＢの使用を示すブロック図であ
る。　　　　　　　　　　　′１・・・整流回路、２・
・・平滑回路、３・・・定電圧回路、４・・・無安定マ
ルチバイブレータ（ＤＣ／ＡＣ変換器）、５・・・無電
圧検出用のコイル、６・・・接点、１１・・・順変換部
、１２・・・平滑コンデンサ、１３・・・逆変換部。Figure 1 is a circuit diagram of the main part showing one embodiment of the NFB according to the present invention, Figure 2 is a circuit diagram of the main part showing another embodiment of the invention, and Figure 3 shows the use of the NFB according to the invention. FIG. '1... Rectifier circuit, 2.
... Smoothing circuit, 3... Constant voltage circuit, 4... Astable multivibrator (DC/AC converter), 5... Coil for no-voltage detection, 6... Contact, 11... Forward conversion section, 12... Smoothing capacitor, 13... Inverse conversion section.

Claims

[Scope of utility model registration request]

In a no-fuse breaker equipped with a no-voltage detection coil that detects no-voltage in an electric circuit and causes the switching mechanism to start an opening operation, a DC/AC converter is provided, and the no-voltage is connected to the output end of the DC/AC converter. A no-fuse breaker, characterized in that a detection coil is connected and the input end is connected via a rectifier/smoothing circuit to an AC line to be used or directly to a DC line of a device to be protected.