Do you know how to measure the earth resistance? if so
explain it
Answer Posted / meshach
Earth resistance, is measured by Earth Resistance Device.
Which a good Earthing Resistance is suppose to give:
1) E to N = 0.7 V
2) P to N = 228.6 V
3) P to E = 228.7 V
And Bad Earthing is:
1) E to N = 0.5 V
2) P to E = 16.2 V
3) P to N = 228.6 V
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
sir, Is their any measuring unit of knoking? please explian?
What is the different between digital phase converter and ordinary phase converter?
What does the letter CTNM in negative phase sequence relay means?
How to calculate the fuse rating depend upon the DC circuit?
Why is water motor not taking the pressure? what is the problem?
what are the sample questions asking to the test cunducting for electrical superwising lisence test?
How to Decide(calculate) Bush bar size for copper and aluminiam ?
how to select electronic timer(Star-Delta) setting for diff. rating motors
What are the advantages and disadvantages of negative feed back?
What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?
Why the earth to phase voltage is high 250 compare to other two phases
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
How to check the Bushings of the transformer?
are there rmu for 3 transformer?