Fault location system with injection scheme based on mobile phone remote control in distribution network

摘要

The signal source based on signal injection scheme which is the main equipment of fault location in distribution network injects AC constant current signal to fault lines. However, its constant current value can't be changed according to characteristics of lines. This paper proposes a high power signal source which can be controlled remotely through an Android mobile phone application. Firstly, the signal source has remote data sent-receive ability through GPRS module. Then data forwarding is realized by cloud server which has a fixed IP. Finally, data exchange between mobile client application and signal source GPRS module is realized by the connection to the cloud server. This achieves that Android client application can remote control the high power signal source for fault location in distribution network.