Answer / amit

Function
The earthing truck has the function of connecting the
busbars in one
half-switchboard to earth. Naturally, the earthing
operation must be carried out
when de-energised so as not to create a short-circuit.

when a machine act as genartor and as motor?

2 Answers  

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What is the meaning of CT 400-200/1-1 A ?

2 Answers   Home,

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HOW TO CALCULATE THE LOSSES OF CURRENT FOR LT CABLE JOINTING TO MOTOR SUPPLY.

2 Answers  

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calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

0 Answers  

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Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

0 Answers  

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how does capacitor oppose sudden chane in voltage? how does inductor oppose sudden change in current?

4 Answers   AAA, Iqra University,

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why vector group is ued

2 Answers  

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

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Generally in d.c. circuits the direction of current is from possitive to negative.In a.c.circuits what is the direction fo current flow

4 Answers  

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what is meaning of bus riser

0 Answers   TeamLease,

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25 kva load,

1 Answers   Voltas,

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There is one 40MVA oil cooled transformer (yet to commission), filled with 95% oil and we are trying to fill 5% Nytrogen in that transformer so that there should not be any foreign component inside. But even though there is no leakage, nytrogen is not withstanding inside transformer, within a day or two pressure guage is showing 0. Why is it soooo? Pls reply.

1 Answers  

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