Answer / niti

alternator star point should be given to double earth.

Answer / vinod.c

Yes,this is correct Answer.Ther is 2 Neutral Earthing.
And also 1 Body Earthing is necessary.

Answer / gunasekaran

resistance earthing

Answer / saravanan

if the 3 phase supply is balanced(ir+iy+ib=0) that time only
you earthed the mid point of earth else you must use some
proper earthing methods like resistance earthing,plate
earthing like that...

Answer / ram singh

DG Neutral earthing should be connected after neutral
contactor connected towards load side because to avoide
neutral neutral failure to load side which is danger incase
of neutral contactor contact tips carbonise or breakes.
Second reason is to balance load during synchronising.
Third reason is to install REF.

Answer / ashwini

resistance earthing

To check the earth condition (In plug points); the voltage between earth and Neutral is in below 5 volts. Is it correct

6 Answers  

How conventional fire alarm system works?

1 Answers  

i want to run 11kv star connected motor in 6.6kv with delta connected throught inverter, is it possible?

0 Answers  

What is ideal IR values for ground and neutral.

0 Answers   Hindustan Power Projects,

What is core balancing in Power Transformer. What is the affect of an unbalabce core.

1 Answers  

How to calculate cable size? How to O&m of vcb?

0 Answers  

starting torque is increased and current is decreased by using external resistance in a slip ring induction motor. How??

3 Answers  

Why can't we parallel the secondary circuits of two voltage transformers?

0 Answers  

Hi frnds :) plz tell me that i have 100 KVA 3 phase generator so by thumb rule 100*1.4 = 144 amps and generaly we can operate at 80% load...so it will 144*0.8 =112 amps.... so now i m confused about single phase load.....if we use that generator only for single phase the that 112 amps is total single phase load or i can give 112 amps at red 112 amps at yellow and 112 amps at blue.... i mean that total single phase load that 100 KVA generator will take is 112+112+112=336 amp ??

2 Answers   FWO,

what is the iron loss in a 11KV/440V transformer?

2 Answers   Bhel, TVS,

a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5

0 Answers  

in telecom we are using neutral?

1 Answers