In this paper

the control strategy on switching shunt reactor by the phase controlled circuit breaker is described and a kind of phase-control opening controller for shunt reactor based on FPAG is proposed and designed. The circuit breaker operation is controlled by the calculation and with coordination of high accuracy permanent magnet operating mechanism. The test circuit is set up in accordance with the existing condition of the test laboratory and the accuracy test is finished and single phase loading experiment is performed further. It is shown by the experiment result that the control system can send out effectively trigger signal complying with requirement to make the thyristor at conducting condition so to control operation of the permanent magnet operating mechanism

and the phase-controlled system

compared to random closing

can

to a certain extent

restrain the transient overvoltage of the shunt reactors.