A Method for Substation’s Grounding Resistance Measurement based on Frequency Spectrum Analysis
Hen R · Microcomputer Information · 2007
This paper introduces the principle of the frequency-changing method on grounding resistance measurement for substation, analyses advantages and disadvantages of the method. 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, it gives a frequency analysis algorithm in data process.