Quenching of Partial Discharges in medium voltage networks by traditional arc suppression coil

Abstract

In this article, we describe a possibility to quench Partial Discharges (PD) in medium voltage networks by using Residual Current Compensation (RCC) device (Swedish Neutral), proposed by K. Winter. If voltage network phase PD activity increases in one of medium, the RCC device shifts network neutral potential in such a way, that voltage of spoiled phase to earth decreases below PD extinction level. The expensive RCC device is necessary.