how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

1 Answers   Havells,

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am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

0 Answers   L&T,

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Does the isolator has a making capacity????????

2 Answers  

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what is the maintaining Cf in UPS.

0 Answers   Enercon,

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What are the main parts of central chiller plant? Explain the function of each stage.

0 Answers   HSL, Shankar Electricals,

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Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

0 Answers  

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whats happen if we disconnect the NGR of alternator in running condition?. Generally we observed that transformer netrul is directly grounded but alternator connected with NGR, then ground?

1 Answers  

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what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.

0 Answers  

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what is meant by IGBT how they differ from tyristor ?

0 Answers  

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how to get more than 1000 ohms between 2 earth pits ?

2 Answers   HCL,

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what is the functioning of cvt in a substation?

2 Answers  

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what is power factor when in view of a lineman

3 Answers   KSEB,

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