Research on parallel operation of active intervention type arc extinguishing device and arc suppression coil

Abstract

The arc extinguishing mode of neutral grounding via arc suppression coil (ASC) is widely used in the distribution network. With the increasing application of active intervention type arc extinguishing device (AIT-AED), there is a situation that the AIT-AED and the ASC operate in parallel, but the parallel operation technology of these two devices is not mature. Hence, An experimental study was carried out to analyze the effect of parallel operation on the function of AIT-AED in this paper. The results show that the parallel operation of AIT-AED and ASC improves the high resistance grounding identification ability of AIT-AED, but the judgment of fault phase and fault type is disturbed. The relevant conclusion can provide reference for developing the parallel operation strategy of AIT-AED and ASC.

Keywords

• Distribution network
• Active intervention type arc extinguishing device
• Arc suppression coil
• Parallel operation