Author(s)

Shuheng Dan^*, Lei Ning

Department of Electrical Engineering, Shanghai University of Electric Power, Shanghai, China.

Shunt capacitor is the main method to intensively compensate reactive power in the power system. The external discharge circuit, commonly discharge coil which is an inductance coil with low resistance, must be allocated to the large capacity of capacitor. This paper calculates and compares two kinds of circuit, capacitor placed with a discharge coil or a resistance, to find the best way to discharge the residual charge of capacitor. Through the study, in the under damped case, these two kinds of circuit present different discharge properties. In over damped mode, their discharge properties are similar.

Discharge Coil; Discharge Property; Capacitor

Dan, S. and Ning, L. (2014) The Research on the Quick Discharge Circuit of Shunt Capacitor. Journal of Power and Energy Engineering, 2, 579-585. doi: 10.4236/jpee.2014.24078.