Earth Resistance Tester Circuit Diagram. This is the working principle of earth tester aet 23. John lemau says 10 09 2017 at 12 52 am.
All the equipment of the power system is connected to the earth through the earth electrode. Can you us a regular megger to test earth ground and if so how thanks. The instrument used for measuring the resistance of the earth is known as earth tester.
To obtain the earth resistance rg ω divide the potential difference v by ac current i.
Regarding the connections stick all the 4 auxiliary earth electrodes into the ground at the same interdistance a m. Earth resistance for electrical grounding systems. The tester measures the complete resistance path loop that the signal is taking. Then use the formula.
