Answer / shahulsnfa

in lagging PF the load will consume more current to provide
the power required by the load. the voltage remains the
same and current varies w.r.t PF.

Answer / simon

Laggin of means Xc<Xl it means the impedance of coil is low as compared of Xc components.

Answer / ikab

PF lagging means there is an inductive load connected along with active load. more inductive load or less pf means more current in conductor which results copper losses and generates heat. with temperature increase resistance of a conductor would also increase hence voltage drop as a result. so Increasing voltage will result in more current.

I want to know that a 160kva diesel generator contains capacity of 160kva on each phase like R=160 Y=160 B=160 total RYB=480kva or it is total capacity of all there phases like RYB=160kva ... thanks in advance ...

2 Answers   jlpl, JP Saraswat Engineers,

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what is the funda of earthing? Explain breifly about earthing?

5 Answers   IOCL,

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What is the difference between SSR drive& AC drive?

1 Answers   ITC Infotech,

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what's the simultenous maximum demand (SMD)..what the diffrent MD and SMD?

0 Answers   HAL,

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what are advantage and disadvantage of hvdc transmission . please tell us technic of hvdc technology

2 Answers  

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what is the principle of operation of synchronous motor and generator? explain in detail.

2 Answers   Maruti Suzuki,

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what is phase voltage phase current line current and their usage? provide diagram

1 Answers  

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Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

0 Answers  

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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.

1 Answers  

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how to reduce the transformer size in ups ?

2 Answers  

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What is meant by cold loop test in instrument

0 Answers   Transnet,

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what is the definition of Nominal current or voltage

1 Answers  

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