sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

0 Answers   HPCL,

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Safety measures in air circuit breaker

5 Answers   Megatron Solutions, TCS,

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what is the carona effects meaning in HT line transmmission system

0 Answers  

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A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

0 Answers   Jindal,

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how to calculate the mf of kwh meter,if ct the ratio on meter is 100/5A

2 Answers  

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How do we check transformer losses and what are the ways to minimise it.

5 Answers  

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What is use of starter and choke in tube light

0 Answers  

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How wire size can define in electrical wiring? What is the ratio?

0 Answers   Descon,

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why current flows from +ve to -ve terminal

7 Answers  

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hi can you give any body fault level calculation, generator fault level calculation,transformer fault level calculation for system fault level with equation? i have 3.3kv generation voltage three gas gen sets, one is 1.9MW,2nd is 2.5MW,& 3rd is 3.8MW & i have 11 kv generation voltage one gas gen sets is 3.8MW, we are step up to 22kv by transformer

3 Answers   Hindalco, Piramal Healthcare,

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AVR is used for the Voltage regulation of the Generator using the feedback signal by exciting the field winding of the generator.But how the field winding will be excited & using what?

2 Answers   Alstom,

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what is the formula for converting KW into KWH ?

3 Answers   Blue Star, Essar,

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