Research of Fault Location and Rapid Repair System of Distribution Network

Abstract

In view of problems of difficult location for fault section and low efficiency of rush-repair in traditional manual patrolling mode when distribution network happens fault, a fault location and rapid repair system of distribution network based on pole fault location monitoring terminal was designed. The system uses pole fault location monitoring terminal to real-timely measure data of distribution network, and uses instantaneous over-current method to judge short-circuit fault and uses total current method to judge grounding fault. When fault happens, pole fault location monitoring terminal sends fault data to monitoring host through GPRS wireless communication module, monitoring host uses improved matrix location algorithm to realize accurate location for fault section. The fault type and position is noticed to related working personnel by message way and is displayed on interface of monitoring host to realize rapid repair for fault. The simulation result validates feasibility of the system.

Keywords

• distribution network, fault location, fault judgement, instantaneous over-current method, total current method, matrix location algorithm, rush-repair of fault, message notice