220 kV MOA 带电测量相间干扰的研究与分析

Ｒesearch and Analysis on Interphase Interference of On － line Measurement for 220 kV Metal Oxide Arrester

摘要:

提出了一种将“场”和“路”相结合的方法用于计算 220 kV MOA 带电测量相间干扰问题。并运用 ANSYS Maxwell 和 EMTP 软件联合仿真计算加以验证，为 MOA 在线监测减小相间干扰提供了理论依据和切实可行的办法。仿真 计算结果显示，A 相和 C 相受干扰影响比较明显，而 B 相幅值和相位变化相对较小。

Abstract:

A method combined with " field" and " circuit" is proposed to calculate the interphase interference of 220 kV metal oxide arrester． It is verified by the joint simulation with ANSYS Maxwell and EMTP，which provides a theoretical basis and a practical way to reduce interference effects． The simulation computation results show that the interference effect on phase A and phase C is more obvious，however the amplitude and phase changes of phase B are relatively small．