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Question { 6037 }
if the stetor speed (N S) increase by 20% then the rotor speed will be increased by 20% is it true. ?
Answer
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 4089 }
what is function of reactor coil in Power factor correction
panel
Answer
| Is This Answer Correct ? | 4 Yes | 0 No |
Question { 5357 }
what r the tests on the 3 phase transformers
can any one explain how to test using megger on transformers
thx
Answer
body 3.Between Pr and Sec .Find PI value also
| Is This Answer Correct ? | 1 Yes | 0 No |
Question { 3854 }
How to calculate amount of copper used in a motor (AC&DC), generator and transformer? Datasheet provides power rating and mass of the equipment....can we somehow use this available info.
Answer
| Is This Answer Correct ? | 3 Yes | 0 No |
Question { 3608 }
what is the MF if CT ratio is 500/5 and in meter
specification is 3.75 REVS/KWH?
Thanks and Regards
Selvendran.N
Answer
| Is This Answer Correct ? | 4 Yes | 0 No |
Question { 4287 }
Why relay connected R
phase and B phase.?
Answer
and they can be connected any two phases
| Is This Answer Correct ? | 2 Yes | 0 No |
Question { 3310 }
If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?
Answer
| Is This Answer Correct ? | 2 Yes | 0 No |
Question { 6336 }
i HP = ??
746 watts or 735.5
and how??
Answer
| Is This Answer Correct ? | 1 Yes | 12 No |
Why not connect relay
Y phase for over
current and earth fault
Answer
phase . In case of 2 OCR + 1 EFR scheme ,EFR is not
connected to Y phase . You think so ,as OCR s are provided
to R and B phases
| Is This Answer Correct ? | 0 Yes | 1 No |
Question { 5825 }
why write 500v on line tester (Test pen)
Answer
| Is This Answer Correct ? | 1 Yes | 0 No |
Question { 3272 }
How much width of the land shall have to be left below the
EHT line of 440 kv as per the rule. i am told that a
corridor of 35 M width is to be left free below 220 kv line.
please confirm
Answer
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 5312 }
I have a generator of 300kw.400V,50hz . what is means
can i assume the load Red Phase with Neutral 300kw.Yellow phase with neutral 300kw and Blue with neutral also 300Kw. or - red with neutral 100kw same as yelloe and blue phase also giving 100kw with neutral respectively
Answer
| Is This Answer Correct ? | 2 Yes | 0 No |
Question { 4215 }
Why we are testing cables with dc?
Answer
| Is This Answer Correct ? | 4 Yes | 0 No |
Question { 3551 }
why using earth testing rod 15 meter 30 meter long to each
other?
Answer
and that will be more accurate
| Is This Answer Correct ? | 3 Yes | 0 No |
L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW
MOTOR STARTS WITH EARTH FAULT RELEASE
Answer
neutral instead of phase.If not , mostly due to pole
discrimination ( all poles not closing simultaneously ).
Disable instant element while closing .
| Is This Answer Correct ? | 0 Yes | 0 No |
