. What should be the minimum and maximum ohmic value for
earthing?
Answer Posted / shariff
There is no specific value as such, but usual values are as follows.
1) Generating Stations less than 1 Ohm.
2) 220kV Sub stations up to 1 Ohm.
3) 66kV S/S up to 2 Ohm.
This should be as low as possible.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?
ht side line to earth voltage
What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?
Explain the working of variable frequency transformer?
How to calculate the phase to phase clearness of HT /// LT bus bar?????
we have 15 ampere variyac but we want 30 ampere variyac what we do
Define ohm’s law for a.c (alternating current)?
In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?
what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....
2. What are the parameters of EHT sub-station?
What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?
What are protections for dty type transformers
diff. between tension mode & speed mode
How to know th details about an electrical Drawing ? Please mention the easy method.
distribution is maximum done by a)radial b)network c) parallel d)b & c