摘要
针对近年来频发的35 kV并抗开断过电压故障,对多起故障实例进行了汇总调查,对故障现象及规律进行了分析,对故障原因及机理进行了仿真解析,对过电压治理措施进行了研究验证。调查发现35 kV并抗开断操作过电压极为严重,空母线开断并抗母线侧存在显著风险,采用断路器并抗中性点侧投切可有效治理35 kV并抗操作过电压。
Aiming at the frequent faults of 35 kV shunt reactor in interrupting overvoltage in recent years, the few cases of faults are collected and investigated,and the fault phenomena and regularity is analyzed, the failure causes and mechanism is simulated and overvohage control measures are studied and verified. It is found in the investigation that the switching overvohage of 35 kV shunt reactor is very serious, remarkable risk is existed at the shunt reactor busbar side when switching no load busbar,and adoption of circuit breaker switching at the side of neutral point of shunt reactor can control the switching overvohage very well.
出处
《电力电容器与无功补偿》
北大核心
2016年第5期107-112,125,共7页
Power Capacitor & Reactive Power Compensation
关键词
并联电抗器
真空断路器
操作过电压
空母线
故障
shunt reactor
vacuum circuit breaker
switching overvohage
no-load busbar
fault
