Answer / pillay

You need a magnetic field to produce electrical energy.This
can be produced from electro magnetic means . What if during
a power failure when the DG set usage is most wanted and the
electrical source from a battery is also not available say
due to battery failure or discharged battery.To avoid such
situation a permanent magnet is used instead for initial
excitation.

can you give main difference between ELCB And RCCB?

38 Answers   MCB Bank, Reliance, Wipro,

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800A 22KV TP OCB. explain

1 Answers  

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what is the difference between H.T Or HV lines...?

1 Answers  

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How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.

0 Answers   Wipro,

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what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

0 Answers   ME,

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What is PQA???Applications........

0 Answers   Emerson,

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how many BUSBAR is in electrical system?

3 Answers  

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how to convert single phase supply to 3 phase or 3 phase to single..?

7 Answers   Wipro,

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if any one phase of the 11kv/415v distribution transformer not delivering the supply voltage what will happen

2 Answers  

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what u meant by shock ? whether it depends on voltage or current

12 Answers  

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Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

0 Answers   Bajaj,

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What is the power rate of power transformer?

1 Answers  

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