whati s the sludge current in ups

1700

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1492

what is meant by vector group of a transformer? How can it be derived?

1519

What is measurement?

755

What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

1170

we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain

1723

If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

1545

Difference between ac parallel circuit and ac series circuit?

1609

describe the A.C. Generator Testing procedure

1644

Do u know any one? how to find out in motor rated amps? formula?

1539

How to synchronization will be done between two DGs ?

1317

new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection

1363

What is the problem of internal failure in ship engine telegraph system norcontrol?

1754

what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1494

Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

2341