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Impact analysis of STATCOM on Distance Relay

Gorakshanath Abande, M.F.A.R. Satarkar, Mohan Thakre, Dr.V.S. Kale, Ganesh patil

This paper presents simulation model of distance relay with STATCOM and simulation results for investigating the operation of Distance relay in a power system containing flexible alternating current transmission (FACTS) controller such as static synchronous compensator (STATCOM).when STATCOM is connected at the midpoint and fault is after STATCOM have great impact on distance relay tripping characteristics. The simulation results shows the impact of STATCOM on distance relay when STATCOM is connected at starting end, mid-point and at end side during phase to ground fault condition. In the presence of STATCOM, its controlling parameters as well as its installation location also affect the tripping characteristic. Here, simulate the Distance Relay and plot the zones and create fault in different zones and show the result with and without STATCOM. The simulation results are presented in relation to typical 300km, 400kv transmission system employing STATCOM.