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How to calculate percentage impedance of a power transformer.

1 Answers  

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what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 Answers  

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Leading power factor means what? what is the power factor value while in power factor is leading? is power factor greater than one? In some cases i heard pf 0.8 leading then what about 0.8 lagging?

1 Answers   Rockfort Engineering,

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3phase lt motor winding how to checking with megger

1 Answers  

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How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?

0 Answers   ADS Spirits,

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If the secondary winding will be open in current transformer, how to damage the insulators

2 Answers   TPDDL,

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what is meant by 2 within a star in a voltmeter dial?

0 Answers  

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Why collecting electrode of ESP to be earthed

0 Answers   NBVL,

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I have 2 transformers in two different plants, both are without OLTC but i am facing problem of voltage fluctuation at LV side from only one transformer. i have to change its taps manually twice in a day. Another transformer delivering voltage is ok. Please guide me about the problem

1 Answers  

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in thermal power plant the steam produced is made to cool after falling on the turbine blades. my question is why this is done while the same is needed to heat up again. "jab pani ko wapis garam hi karna hai to thanda kyu karte hai"

11 Answers   Bhel,

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what is the difference between kva and kw ?

5 Answers   TCS,

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explain types of electric welding and its applications

0 Answers  

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