model question paper for supervisor trainee

0 Answers   Bhel,

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In Power cable specification what is U0/U and Um.

0 Answers  

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what are tpes of insulaors& its uses

1 Answers   ABC,

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Define phase cross over?

0 Answers  

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Is it necessary to seperate the DG earth grid with Electricity Board earth grid for protecting the DG set. if yes why?

2 Answers   BARC,

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

0 Answers   MTN,

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what happen when power factor of 2 parallely operated transformer become equle?

0 Answers   Flextronics,

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In a circuit a capacitor (paper capacitor ) was burned due to over voltage in this case can we replace that type cappacitor with other tye capacitor ?

1 Answers  

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In Fluorescent tube there is a writing like 6500k . what this 6500k represents?

4 Answers  

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Can i connect all earth pits in ring system..., And wat IS 3043 says...please help me

1 Answers  

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Mention the methods for starting an induction motor?

0 Answers  

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in house wiring when two wires are same colour coding and there is no any connection one end how to find which wire is earthing wire

1 Answers  

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