Answer / k.prakashchandra

A synchronous motor running on no load, draws a leading
current when over excited and hence acts like a
capacitor.Then it is called a synchronous condenser.Its
leading current partly neutralises the lagging reactive
component of the load resulting in improvement of power
factor.

Can we convert off load tap changer transformer to on load tap changer transformer

2 Answers  

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what is recovery voltage & transient voltage ?

1 Answers   Bhel,

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why the motor running in delta connection ? it can be in star?

13 Answers   NTPC,

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We have a 62.5 KVA DG with Leyland engine and kirloskar slipring alternator. We have earthed the neutral, and another earthing for the dg body. is it necessary to isolate the dg foundation with rubber pads?

1 Answers  

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How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?

0 Answers  

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How to select HT/MV cable size ?

0 Answers  

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Explain why inductance of the iron cored coil changes with current?

2 Answers  

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what is transformer tap change HT side and LT side

1 Answers   Alstom, Sodexo,

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some practicle study shows that the reactive power at the receiving end is not equal to the reactive power at the sending end.But according to theory the reactive power is exchanged by different parts of the network – capacitors and reactors permanently, but is never consumed or produced. Then Where that reacrtive power loss occuring?is there any formula to calculate reactive power loss?

3 Answers  

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what is RMU ?

26 Answers   MacLellan, Shalaka Infra Tech,

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Installation method of self treated earth electrode.

0 Answers  

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when voltage increases then current also increases then what is the need of over voltage relay and over current relay? can we measure over voltage and over current by measuring current only?

1 Answers  

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