Answer Posted / ashraf majid

BHEL's interview will mainly consist of questions regarding
ELECTRICAL MACHINARY and its CONTROL. The questions
relating to electrical machines will be based on simple
fundamentals of Electrical machines.These will include the
questions about
1.Induction Machines(mainly)
2.Transformers
3.Synchronous machines
4.Dc machines(not generally asked)
5.Control of AC & DC machines

for compensate 315mh inductance ,how many capaciance required?

1629

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what is the function of gss in the dg set.

1484

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what are the differant std sizes of cable trenches?

1538

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WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

1980

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Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

740

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Tell me all plants load factors i.e which plant operating on which load?

1564

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can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

896

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What is the armature mmf in a D.C machine?

807

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Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

1769

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how we will deside the high voltage value

1470

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is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

1185

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why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

1706

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Please tell me the earthing procedures adopted for the STAR-STAR 3 Phase transformer in india and give a better sugession for earthing

1515

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what is the mechanical safety of DG ?

1703

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what about GD square and its important for motor design?

3301

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