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zero rpm

hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E

1927

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WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

1739

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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.

1798

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What is Traction? 1KVA Alternator, How much urrent taken?

2044

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Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

1700

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Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

2332

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What is precision of a measurement?

1047

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Safety of dry type transformer

1903

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what is meant by impulse voltage?

1950

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how can see the ac indoor or out door ac which Tr

1953

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Define peak time.

1088

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i want to run 11kv star connected motor in 6.6kv with delta connected throught inverter, is it possible?

1979

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bsnl tta exam question

1828

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in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer 

1747

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What is the rate of WCT on the Electrical Contracts comprising of DG Sets and Civil Works in Delhi ?

2135

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