Answer Posted / surya

Megger is used to find the resistance.It is used in Surge
arrestor, and will be in Mega Ohms. But the value is not
known.

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

2036

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1.what is the difference between ct and cvt? 2.what is the difference between pt and cvt? 3.what is the difference between relays and circuit breakers?

2811

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does any one know where we can purchase insulation oil for high voltage oil filled cables

2400

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what is meaning of bus riser

2666

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Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

2337

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what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..

2150

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some basic standard questions on transformer.

1853

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how to compute kvar in substation feeder to improve power factor and sending voltage

2202

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If o/p power is doubled by how much does the sound increase

1137

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What is bridge rectifier and explain with details

1980

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Is RTCC panel needs any control supply.

2109

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

5368

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In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

1908

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What are the advantages of speed control using thyristor?

1168

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what do u understand from filter factor of reactor?

2000

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