Answer Posted / pkv

actually delta star trnasformer used in step down
trnasformer to avoid earthfault give effect of over
current on hv side of the trnaformer

What is the function of under voltage release ?

1436

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where are the circulat the diesel in DG parts name with pictue

2143

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What is the universal motor?

1122

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How many devices can be connected in one zone of FACP

2325

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When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?

2017

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What is inductance?

1204

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

2008

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WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

2045

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Why does the rotor rotate?

2286

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How to select a cable size for particular load?

1834

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it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

2036

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what percent do you derate your copper wire when you change from copper buss to copper wire

1997

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Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

1679

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The moisture in air will condense at

1191

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what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.

2206

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