Evaluation of Auto-reclose Performance of 500kV Transmission Line with Shunt Reactor in Indonesia

This paper evaluate the effect of shunt reactor installation on 500kV transmission line in Indonesia. Secondary arc duration and transient overvoltage during the opening process of single pole auto reclose (SPAR) are considered in this paper. Variations of earth fault location on 500kV transmission line and inductance grounding magnitude of reactor are performed in this paper. All of the scenarios for non-transposed and transposed transmission line then simulated on application of transient analysis. Based on simulation results, it is found that transposition on 500kV transmission line which compensated by shunt reactor should be performed. Transposition is intended to prevent the failure of auto reclose due to long duration of secondary arc and also intended to reduce the magnitude of transient overvoltage. This paper also recommend to apply SPAR on the circuit breaker of shunt reactor if transposition on 500kV transmission line cannot be performed.