并联电抗器电流开合试验电源侧参数对TRV的影响研究  

Research of the Impacts on TRV Caused by Parameters of the Supply Circuit in Shunt Reactor Current Switching Tests

作　　者：者永祥 冯伦 孟康 何冰[1] 李阳 ZHE Yongxiang;FENG Lun;MENG Kang;HE Bing;LI Yang(Xi’an High Voltage Apparatus Research Institute Co.,Ltd.,Xi’an 710077,China)

机构地区：[1]西安高压电器研究院有限责任公司,西安710077

出　　处：《高压电器》2020年第8期143-147,共5页High Voltage Apparatus

摘　　要：高压交流断路器的并联电抗器电流开合试验中,试验回路的预期TRV由负载侧参数决定,但在实际试验中电源侧参数对断路器断口间TRV也会产生一定影响,电源侧参数的合理选定是正确考核高压交流断路器开合并联电抗器性能的基础。针对一台145 kV的SF6断路器,利用PSCAD仿真软件,对比分析了不同电源侧电感、电容对TRV的影响。得出电源侧参数会导致TRV峰值和电压上升率不同程度增大的结论,其中电感值的增加会提升其增幅,电容值在一定范围内的增加会降低其增幅。进一步结合实际试验数据,验证了仿真分析结果。In shunt reactor current switching tests of high voltage alternating circuit⁃breakers,the prospective TRV parameters determined by the parameters of the load circuit.However,the TRV parameters between the gap of the circuit⁃breaker will be impacted by the parameters of the supply circuit in real tests.The rational method for deter⁃mining parameters of the supply circuit is the foundation for correctly checking the performance of switching shunt re⁃actor of high⁃voltage alternating circuit⁃breakers.For a SF6 circuit⁃breaker of 145 kV,analyzed the different impacts on TRV caused by various inductance and capacitance of supply circuit by simulating with PSCAD software.Con⁃cluded that the parameters of the supply circuit will lead to the increase of peak value and RRRV of TRV,the in⁃crease of the inductance will enhance the increase of TRV,the increase of the capacitance in a certain range will weaken the increase of TRV.Further combining the results of real tests demonstrated the results from the simulation.

关 键 词：高压交流断路器 并联电抗器电流开合 电源侧参数 瞬态恢复电压 

分 类 号：TM561[电气工程—电器] TM47