摘要
针对某火电厂10 kV厂用母线电压互感器(TV)由于加装一次消谐非线性电阻器(一次消谐器)后发生二次三相相电压不平衡的问题,通过试验数据及原理分析原因,并提出解决措施,避免由于相电压不平衡导致继电保护动作不正确,保障机组安全、稳定运行。
Aiming at the problem that the secondary three-phase phase voltage imbalance occurs after installing a primary harmonic elimination nonlinear resistor(primary resonance elimination)in a thermal power plant 10 kV auxiliary bus voltage transformer(TV),the reasons are analyzed through test data and principles.It proposes measures to avoid incorrect operation of the relay protection due to unbalanced phase voltage,and to ensure the safe and stable operation of the unit.
作者
张瑞明
ZHANG Ruiming(Zhejiang Zheneng Jiahua Power Generation Co.,Ltd.,Jiaxing,Zhejiang 314201,China)
出处
《东北电力技术》
2020年第10期52-54,共3页
Northeast Electric Power Technology
关键词
一次消谐器
电压互感器
相电压不平衡
原因分析
primary harmonic elimination
voltage transformer
phase voltage imbalance
cause analysis
