断路器短路试验引起的电压扰动分析

Analysis of Voltage Disturbance Caused by Short Circuit Test of Circuit Breaker

通过对比分析电压波动和电压暂降的定义、产生原因及危害,结合断路器短路试验的实施过程,对某试验站短路试验对电网电压的冲击影响进行了仿真计算,计算结果表明短路试验对电力系统的电压扰动应满足电压波动、电压暂降等电能质量国家相关标准,对电能质量评估工作具有一定的参考意义。

By the comparative analysis of the definition, causes and hazards of voltage fluctuation and voltage sag, combined with the implementation process of breaker short-circuit test, the infulence of the short circuit test on the impact of the grid voltage is simulated, the calculation results show that the voltage short-circuit test of power system disturbance should meet the national standards of power quality, the conclusion for the similar project has certain reference significance in power quality assessment.