Answer / sujit nandi

ya if we know the resistance and impedence of load...as we know cos phi equals to R/ z...

When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

1 Answers   Shasun Chemicals,

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seromechanism

4 Answers   Bhel,

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On what cycle does thermal power plant operate?

0 Answers  

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why the starting current of a motor is high?

3 Answers   ITC Infotech,

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what ll happen if neutral is not shorted with phases while doing transformer short circuit test & what ll happen if neutral is connected to ground?

1 Answers  

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What are the basic elements used for modeling mechanical rotational system?

0 Answers  

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What types of motors are used in cranes

9 Answers   BPDB, BUBT, CNH,

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what is the mho relay

3 Answers  

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how and why are capacitors are used to improve powerfactor?

4 Answers  

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If two generator running parallel, at that condition both ngr Taken in line or taken any one ngr, but why any one or both Ngr in line? Ngr is use for which purpose?

3 Answers  

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What is the minimum distance between taransformer (say 2000 kva)and its earth pit?

2 Answers   Bhel,

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Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

0 Answers   HAL,

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