how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
Answer Posted / aruna devi
By using earth megger .It should be less than 2ohm.
Is This Answer Correct ? | 227 Yes | 72 No |
Post New Answer View All Answers
What are the types of piano switches?
what is a bus riser in power system and why it is used
I need HT sphere gap calibration table. Can any body help me.
What is mean by hot and cold loop testing? What is the difference between them?
what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.
what is the formula of starting current of 3phase and 1 phase motor???
How we select the vector group of 3phase power transformer?
What is meant by positive and negative feedback?
How it can worked plc based electrical system And which type of software using.
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker
Classify drilling machines.
what is under coal gassification?
what is meant by k-rating in isolation transformer?what is k9, k14 stands for?
how can motor both beasrings insulation resistance can be check?
what is the use of power transformer in GSS.