Answer Posted / anilram
for perfect earting it should be zero ohms. for pratically
at site it 1-5 ohms . in large substations the should be
below one ohm
| Is This Answer Correct ? | 22 Yes | 3 No |
Post New Answer View All Answers
Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.
how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...
What is Fire Panel ? How it works ?
what is the affect of earth's magnetic field on the frequency used in aircraft???
what is RFCT and Insulgard Relay & It's function?
If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?
What is the difference between indoor and outdoor transformer
Name the test signals used in control system
What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.
Dyn1 transformer vector group testing how to do
Why the symbol of register is "zig zag"
ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant
What is a parabolic signal?
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
wow to calculate the transformer rating(KVA)