Simulation and Analysis of Induced Current of HV Parallel Reactor Disconnector for 500kV Double Circuit Line on the Same Tower

Abstract

The 500 kV double circuit line with HV parallel reactors has a long outage time in ice melting operation.In this paper, we discussed the possibility of directly switching HV parallel reactor disconnector under the cold standby state,in order to further optimize the operation mode of DC ice melting line.We calculated the induced current of the HV parallel reactors disconnector in the 500kV LG A and B lines, and analyzed the related factors. We also calculate the overvoltage level of the HV parallel reactor disconnector, and put forward the parameter requirements, which provides reference for the type selection.