摘要
针对10kV电网中频发的由于铁磁谐振而造成电压互感器烧损现象,介绍了几种为消除铁磁谐振所采取的措施,并进行了分析比较。通过理论分析及实际验证,证明了每种措施都有一定的效果,但就比较而言,一次消谐的效果好于二次消谐的效果。
Aiming at appearances of frequent voltage transformer burning damaged caused by ferro-resonance in 10 kV power network, introduction was made to the measures taken to eliminate ferro-resonance and analysis and comparison were made. Via theoretical analysis and actual verification, each kind of measure is proved to have certain effect, but in comparison to say, primary resonance eliminating effect is better than secondary one.
关键词
电压互感器
铁磁谐振
消谐器
开口三角绕组
voltage transformer
ferro-resonance
resonance eliminator
open-delta winding
