金属氧化物避雷器对牵引网谐波过电压的响应分析

Analysis of Response from Metal Oxide Lightning Arrestor to Harmonic Over-voltage of Traction Network

电气化铁路牵引网谐波过电压可以达到很高数值。以实测的牵引母线电压为数据源,仿真分析变电所避雷器和机车避雷器在该过电压激励下的电流响应和热量累积效应,以采取相应措施有效避免避雷器故障,保障供电设备运行安全。

The harmonic over-voltage of traction network of electrified railway may reach a very high value. With the real tested voltage of traction bus bar as the data source, the current response and heat accumulation effect of the substation lightning arrestor and locomotive lightning arrestor under the voltage excitation so as to take relative measures to avoid the faults of lightning arrestors and guarantee the safety operation of power supply equipment.