Interested to Buy Any Domain ? << Click Here >> for more details...
what is neutral grounding? why is it required? what is
neutral grounding resistor and how is its value calculated??
- 11 Answers
- 65675 Views
- NTPC, ONGC, I also Faced
- E-Mail Answers
Answer Posted / santhosh(adityabirla group)
tranformer neutral is connected to earth is called neutral
grounding
if neutral is not earthed in case of one phase is ground
faulty then other two healthy phases voltage become
dangerously high which result insulation failure
generator neutral is connected to earth through resistance
is called NGR
R(NGR) = vph / FAULT CURRENT
EX VPH = 3.8KV , FAULT =100
R= 38OHM
| Is This Answer Correct ? | 17 Yes | 0 No |
Post New Answer View All Answers
Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?
what happen when power factor of 2 parallely operated transformer become equle?
Single line diagram for dbb (double bus bar)system.
sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com
Formulae for calculating the transmission line losses for different voltage levels
what will happen if there is a voltage leakage or current leakage in an electrical train
11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??
How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.
HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?
why the projects getting loss?
how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take
What is load boxes ?
what is charger supervision and control supervision?
could you measure current in parallel?
How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?
