why contactor not provided between output of VFD and motor?

6 Answers   Siemens,

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why field winding in synchronous machine connecting in star position?

1 Answers   HCL,

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what is PI value and its significance for insulation testing?

3 Answers  

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why dont we connect the two 12 V DC batteries in parallel, for an inverter (UPS)? is there any harm ?

3 Answers  

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if we convert kw into Ampers,which one formula use by us,pls tell me?

9 Answers   ABB, Essar,

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which connection is safer series or parallel?usually which connection we prefer at home?

5 Answers  

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How can you limit the fault level in a power system?

1 Answers   Alfanar,

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without any theoretical calculations, can u approximately tell the current rating of a motor(above 30hp)working at 415VAC.

7 Answers  

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How a synchronous generator practically work? what is the function of avr(automatic voltage regulator)in synchronous generator?how the connection of avr to the generator made practically?please give me the answer.

6 Answers   Accenture, Heineken,

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In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

0 Answers   RRB,

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What is the life of MCCB

1 Answers   Siemens,

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we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

0 Answers   NHPC,

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