Technical Research for the Measurement of Power Frequency Grounding Resistance
Yan Tai · Quality and Technical Supervision Research · 2014
The measurement of power frequency grounding resistance is one of the basic parameters of electrical measurements. But there are many problems in the actual measurement, which lead to inaccurate results.The article uses an example for the most commonly used three pole straight-line method measuring power frequency grounding resistance. Based on relevant national norms and standards requirements, the article analyzes and summarizes the measuring principle of grounding resistance for grounding device, and puts forward opinions and suggestions to improve the accuracy of measurement results.