how much earthings are mendatory at a 25kva sub station?

Question Posted / mehul sharma

Answers were Sorted based on User's Feedback

how much earthings are mendatory at a 25kva sub station?..

Answer / pckundapur@gmail.com

For pole mounted SS ,minimum 3 earth electrodes are
required. Neutral, metal parts including body and L.A.

Is This Answer Correct ?

7 Yes

0 No

how much earthings are mendatory at a 25kva sub station?..

Answer / krajeshkumar1989

for every stucture,ct,cvt,la,isolator 2 eathing is madatory.

Is This Answer Correct ?

2 Yes

2 No

how much earthings are mendatory at a 25kva sub station?..

Answer / niki

In 25 kva s.s. only 1.1 MVA fault level so , we should use oonly 2 earthing pit. One for body grnd and neutral grng.

Is This Answer Correct ?

0 Yes

0 No

More Electrical Engineering Interview Questions

What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?

how many synchronous motor are there in any power plant

What is the difference between acs 550 & acs 850

what is the function of supervison relay?Draw its wiring diagram.

What is the differance between Digital Energy meter & Static energy meter? why the KWH diferance between both meters.

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why transformer rating in KVA instead of KW?.

what is the minimum distance between substation wall and LT panel outer surface?

Can i use to 3 phase 4 wire energy meter inplace of 3 phase 3 wire energy meter ?

What is the difference between an ELCB and a RCD?

Is RTCC panel needs any control supply.

how LT meggar works

Whether we used insulated line for 33KV supply. what we called it.

For more Electrical Engineering Interview Questions Click Here