变电站无功补偿装置故障分析及其改进措施

Fault analysis and improvement measures of reactive power compensation device in substation

无功补偿装置在变电站得到大力推广及应用,效果显著。然而,由于系统谐波因素、操作过电压影响以及本地使用的无功补偿装置保护定值设计不当,装置损坏故障时有发生,严重影响了电网的安全运行,如果处理不当,事故范围就将进一步扩大。本文通过变电站运行过程中出现的故障问题,深入分析了无功补偿装置故障的原因并对无功补偿装置进行改进,使之能充分发挥作用,安全并可靠运行。

Reactive power compensation device has been widely promoted and applied in substation, the effect is remarkable. However, due to improper design, system harmonic factors, operation over-voltage influence, reactive power compensation device damage occurs frequently, seriously affecting the safe operation of the power grid, if not handled properly, the scope of the accident will be further expanded. In this paper, through the substation operation in the process of fault problems, in-depth analysis of the reactive power compensation device failure reasons, and reactive power compensation device is improved, give full play to its important role, to achieve its safe and reliable operation.