Research of 750kV Controllable High Voltage Shunt Reactor

This paper describes a stepped switching controllable high voltage shunt reactor´s basic operating principle, the device can regulate the system reactive power, voltage and frequency over inhibition of arc current, with a continuous smooth power adjustable harmonic current small and the advantages of fast response. It analyzes the stepped switching controllable high voltage shunt reactor protection features and functionality, protection and circuit breaker protection, Article uses Fourier series decomposition method. This method analyzed about current harmonic content of 300Mvar 750kV controllable high voltage shunt reactor´s work winding which will put into operation in Hexi 750kV transmission project Dunhuang substation.