Answer Posted / pravin kumar

The minimum Insulation Resistance value for the power cables
2mega-ohm/kv this is both applicable for LT& HT side
for ex:
11 kv power cable need IR value is 22 mega-ohm

what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

1798

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what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

2290

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for a 400kv t/m line with 10 ampere current will corona occur?

2193

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I have experienced electrical maintenance HT ,but I completed be ECE ....can I apply c license or not ???? Pls help me friend s...

1570

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what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?

2365

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how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????

2392

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Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

2214

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What is installed in PAC that is control the humidity

1509

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a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------

1919

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what is advertised hop count

1773

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How the over load setting for HT Motors calculated-provided in Numerical Relay

1814

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iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

2253

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If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?

2311

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what is ramping rate of generator

2069

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While testing LA mast,What are the parameter limits ?

1899

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