Answer Posted / saleem khan

Clearance between neutral and earth should not be less
than 20mm.

what is reactive power?, why its measured in VA ? is it transient behavior of system?

2349

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how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

1881

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reason of diode failure in alternator

1917

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how ceiling fan worked?

1963

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What is the maximum percentage voltage drop (vd%)for a motor control center

2057

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Ac generato how produce power I need for camplet defination

1828

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1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

2632

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in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1786

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Define peak overshoot.

1319

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Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha

2219

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What safety precaution are to be taken for avoiding electric hazards ?

1912

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Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

2085

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What is the formula to calculate the rating of a three phase miniature circuit breaker

2205

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What is meant by short-pitched winding?

1260

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1)Explain why the cradle guard is used on railway crossing in overhead line construction?

5110

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