2015年1月23日星期五

Air circuit breaker Feature and Works

Permanent magnet AC contactor is the use of magnetic repulsion of the same principle that opposites attract, and the formation of permanent magnet drive mechanism to replace the Circuit breaker traditional magnet drive mechanism of a micro-power contacts air circuit breaker. Contacts mounted on the linkage of the permanent magnet fixed polar interactions and curing on the contactor base variable soft magnetic polarity to achieve pull, aim to maintain and release. Soft magnetic polarity variable cured together by its electronic module generates a dozen to two dozen milliseconds forward and reverse pulse current, and to produce a different polarity. According to the site required, the electronic control module to control the release of the voltage set value, may be a delay before the reverse pulse current is sent in order to achieve low-voltage time-release or delayed release of the power-off purposes, so that the motor control Akira power from the grid and jump stop, so as to maintain stable production system.
Innovative technical features of the permanent Switchgear & Substation magnet AC contactor with permanent magnet drive mechanism to replace the traditional magnet drive mechanism, namely the use of a permanent magnet and microelectronic modules control devices, replacement of the traditional products of the electromagnetic device, no run current, only by the weak signal current (0.8-1.5mA). Microelectronic module contains six basic parts: a power rectifier; 2. Control power supply voltage detected in real time; 3. Release the storage (some also have pull storage, but not necessarily any); 4. energy storage capacitor voltage. detection; 5. interference threshold voltage detection; 6 release logic. This is a permanent part of the operating mechanism 6 essential part of the composition of the electronic control, the absence of any one part of the operating mechanism will not work under certain circumstances. This six part, will determine the operating Cncelegroup mechanism may have anti-shake electrical function.

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