Question
Download Solution PDFFor measuring the earth resistance by the fall-of-potential method, how many auxiliary electrodes are used?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFFall-of-potential method
In the fall-of-potential method for measuring earth resistance, three electrodes are typically used. One is earth electrode and 2 are auxiliary electrodes.
1.) Current Electrode (C): This electrode is also known as the "energizing electrode" or "current injection electrode." A current is injected into the ground through this electrode.
2.) Potential Electrode (P): This electrode is also known as the "voltage measurement electrode" or "potential probe." It is placed at a certain distance from the current electrode to measure the voltage drop in the ground.
3.) Earth Electrode (E): The earth electrode is the grounding system or the electrode under test. It is the system for which you are measuring the resistance.
Last updated on May 29, 2025
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