摘要
瓷柱式双断口断路器的断口并联参数发生变化时,其中一个断口将承受过重的恢复电压,从而使断路器发生复燃或重击穿。通过建立单相双断口断路器切除滤波器组仿真模型,针对两个断口并联电阻取值相等和不相等两种情况,仿真与计算断口间的暂态过程,分析并联电阻对暂态恢复电压的影响,并给出了计算与评估断路器两个断口上恢复电压的案例。
When the parameters of the parallel connection of the live tank double-break circuit breaker is changed,one of the interrupters suffer a severer recovery voltage,and this can lead re-ignition or re-strike on the circuit-breaker.A simulation model of single phase circuit-breaker with double interrupters switching the filter group is established to simulate and calculate the transient process of the interrupters.The influence of parallel resistance to transient recovery voltage is analyzed in both cases of the parallel resistance of two interrupters with equal and unequal value.Finally,an example of calculation and evaluation on the recovery voltage of two interrupters under the specific parameters is given.
作者
赵普志
李之洪
张陵
路峰
何常根
ZHAO Puzhi;LI Zhihong;ZHANG Ling;LU Feng;HE Changgen(State Grid Xinjiang Electric Power Corporation,Wulumuqi 839000,China)
出处
《电子器件》
CAS
北大核心
2020年第1期200-204,共5页
Chinese Journal of Electron Devices
关键词
双断口断路器
恢复电压
不均匀性
交流滤波器组
circuit-breaker with double interrupters
recovery voltage
inhomogeneity
AC filter group