WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?
Electrical Engineering 1474
Question { 3182 }
in a three pin socket y the pin of earthng is longer n
bigger...?
Answer
Is This Answer Correct ? | 1 Yes | 0 No |
Question { 10731 }
Which ciass CT can be use in diff. protection. Can be use
5p20?
Answer
Is This Answer Correct ? | 10 Yes | 0 No |
protection used for alternator , feeder , transmission line
Answer
Is This Answer Correct ? | 7 Yes | 2 No |
Question { 11811 }
what is the difference between potential Transformers and
capacitive voltage transfoemers and where it is used?
Answer
Is This Answer Correct ? | 19 Yes | 1 No |
why Batteries & Battery chargers are used in substation?
what is the different between UPS & battery charger?
Answer
Is This Answer Correct ? | 17 Yes | 9 No |
Question { 8514 }
The capacity of the transformer is 20/25 MVA, Ratio is
132/11 KV, Vactor group YNyno. and impedance is 10.07%. As
per the calculation the secondary current is 1312.2Amps.
The maximum fault current the transformer should sustain is
13.030KA. How many times the transformer should sustain the
maximum short circuit current of 13.030KA over a period up
1 Year. The transformer is repaired one & 10 Years old.
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { 2934 }
How does the sensitive earth fault protection provided by cbct
for motor can help in reducing the size of cable used to supply the motor?
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { 5928 }
Two alternators say 1 & 2 are poised to parallel operation.
But at the time of paralleing alternator 2 gets out of the
system by tripping Earth fault relay. Please send me reply
why this is happening?
Answer
Is This Answer Correct ? | 1 Yes | 0 No |
Question { 5846 }
What is the advantage of Neutral graunding transformer
insted of Neutral graunding Resistance in generating
station explain briefly.
Answer
Is This Answer Correct ? | 3 Yes | 2 No |
what is the advantages of Lighting transformer?.. is it
possible to reduce the power consumption ?.
Answer
Is This Answer Correct ? | 12 Yes | 27 No |
Question { 89152 }
What is the difference between XLPE & FRLS cables? Is FRLS
cables is a type of XLPE cable or both r different?
Answer
Is This Answer Correct ? | 26 Yes | 12 No |
What is the basic difference between 90% stator earth fault
and 100% stator earth fault, and its phenmenona?
Answer
Is This Answer Correct ? | 10 Yes | 1 No |
What is Partial Discharge test .Please specify that this
test can be test on 11/0.433 KV,630 KVA Transformer.
Answer
Is This Answer Correct ? | 0 Yes | 0 No |