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首页> 外文会议>Asia-Pacific conference on environmental electromagnetics(CEEM' 2003) >The Method of Intelligent Operation of Circuit Breaker to Reduce Overvoltage
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The Method of Intelligent Operation of Circuit Breaker to Reduce Overvoltage

机译：断路器智能操作降低过电压的方法

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摘要

The operating overvoltage appears when a circuit breaker, especially a high-vottage circuit breaker is opening and closing, which causes strong Electro Magnetic Iinterference (EMI) and even damage to power and electric equipments near the circuit breaker. In this paper the factors which create operating overvoltage are analyzed. Based on the breakdown theory of critical electric strength, the sensitivity of the gap between open contacts to non-uniform coefficient of electric field is considered, the characteristics of dielectric recovery are calculated, the methods of reducing or avoiding operating overvoltage are put forward, which are realized by the changing the simplex moving characteristics of circuit breaker, such as the initial phase confirmed in closing, the current phase selected and the diameter of the drain oil aperture of operating mechanism adjusted in opening of intelligent operation circuit breaker.
机译：当断路器（尤其是高压断路器）打开和闭合时，会出现工作过电压，这会导致强烈的电磁干扰（EMI），甚至损坏断路器附近的电源和电气设备。本文分析了产生工作过电压的因素。基于临界电气强度的击穿理论，考虑了开路触点间隙对非均匀电场系数的敏感性，计算了介质的恢复特性，提出了降低或避免工作过电压的方法，通过改变断路器的单纯形运动特性，例如在闭合时确定的初始相位，选择的当前相位以及在智能操作断路器断开时调整操作机构的排油孔直径来实现。

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