同时具有欠电压保护和过电压保护的漏电断路器

Residual current circuit breaker with both under-voltage protection and over-voltage protection

Abstract

本实用新型公开了一种同时具有欠电压保护和过电压保护的漏电断路器,漏电断路器内部具有漏电检测电路和执行机构动作电路,电动操作机构固定在漏电断路器的外封盖上,控制器固定在电动操作机构上;在电动操作机构上安装滑块和电动机,滑块卡在漏电断路器上的手柄上,电动机通过齿轮传动机构连接漏电断路器上的操作手柄,在控制器上设置微处理器、按钮开关和编码开关,微处理器分别电连接按钮开关、编码开关电路、电压检测电路以及发光二极管。将电压信号直接输送给微处理器,经过与门值比对,确认每一相的过电压或者欠电压故障,同时具有欠电压保护和过电压保护功能,使线路和负载免受欠电压和过电压的危害。
The utility model discloses a residual current circuit breaker with both under-voltage protection and over-voltage protection, and the interior of the residual current circuit breaker is provided with a current leakage detection circuit and an actuating circuit of actuating mechanism. An electric operating mechanism is fixed on the external capping of the residual current circuit breaker, and a controller is fixed on the electric operating mechanism; a slide block and an electric motor are mounted on the electric operating mechanism, the slide block is clamped on the handle of the residual current circuit breaker, and the electric motor is connected with the operating handle of the residual current circuit breaker through a gear transmission mechanism microprocessor, a button switch and a coding switch are arranged on the controller, and the microprocessor is electrically connected with the button switch, a coding switching circuit, a voltage detection circuit and an LED. The voltage signals are directly transmitted to the microprocessor, and the over-voltage and under-voltage fault of every phase is determined through the gate value comparison; the utility model is provided with under-voltage protection and over-voltage protection functions at the same time, which can prevent the circuit and load from being damaged by the under voltage as well as over voltage.

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    CN-102610452-AJuly 25, 2012江苏辉能电气有限公司Leakage circuit breaker