串联电抗器噪声分析及其电抗率的选择

Noise Analysis of Series Reactor and Its Reactance Ratio Selection

针对某新建110k V变电站启动调试过程中电容器柜内电抗器噪声严重超标问题,经过分析和测试,将其电抗率由1%提高到5%,谐振被遏制,噪声也大幅度下降。文章通过理论分析与计算,验证了该改造的合理性。最后总结了串联电抗器电抗率选取的一般原则,并提出了处理建议。

For the serious noise overweight problem of reactor during the startup debugging process of a newly built 110kV substation, the reactance ratio of the series reactor is turned from 1% up to 5 % after analysis and test, which restrains the resonance and sharply reduce the noise. This paper proves the rationality of the alteration project through theoretical analysis and calculation. Based on this conclusion, this paper summarizes the general principles of the reactance ratio selection and proposes some suggestions.