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

what is the working difference b/w softstarter and Variable frequency drive ?

6 Answers   Parle,

Can you explain about pole discrepancy scheme

0 Answers   NCC,

what is difference between fuse and breaker?

6 Answers   ABB,

what is the reason for choosing DYn11 in transformer, why not DYn12 or something else

1 Answers  

5MVA TRANSFORMER SUDDENLY FAIL WITH THE PRV TRIPPING AND LARGE AMOUNT OF OIL SPREAD OUT? SO IT CAME BACK WITH THE REPAIRING WITH REASON THAT IT FAILS BCOZ OF TRANSIENT EFFECT? SO PLZ EXPLAIN HOW DOES IT HAPPENED?

1 Answers  

can you check the current and voltage of a 12 V battery by a digital multimeter in this fashion that apply the digital multimeter across the battery terminals directly ? say yes or no ... i sais yes ........... is this true or false ? plzz tell me and also explain ........ plzz thanks

4 Answers  

in 33/11kv stepdown transfomer, transformer will stepdown to 11kv & remaining 22kv where it will go..

3 Answers  

can any one help me? 1.what is corona extinction voltage&corona inception volatage 2.what is mean by CFVV?

1 Answers   KSEB,

Can we use same copper cable for both AC & DC power.

3 Answers  

Why the brushes used in dc machines are made of carbon not from other metal?

2 Answers  

How do we calculate conductor size?

1 Answers   Hero Honda,

What are the common sources of energy?

0 Answers