Research on Measurement of Grounding Resistance for Substation
Qingyun Wang · Jiangsu Electrical Engineering · 2008
This paper introduces some measurement methods of grounding resistance for substation,and analyses respective advantages and disadvantages.Then a design of the instrument structure for grounding resistance measurement based on C8051F410 chip is proposed.In order to set proper frequency for the frequency-changing power,this paper puts forward a frequency analysis algorithm in data process and implements it by C program,which resolves the problem of disturb by 50 Hz signal.