Answer / praveenkumar erroju

energy in electromagnetic field is =1/2 li2

the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

3 Answers   Bhel,

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Can somebody tell me the type and amp of transformer used to implement 600VA UPS? Thanks in advance.

1 Answers  

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how to calculate the change over time for star delta starter for different KW motor?

0 Answers  

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what efficiency of transformer at 100% load

0 Answers   Emerson,

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what is the differebt between ac and dc fuse?

0 Answers   IBM,

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What happen if 200KVAR capacitor continuesly connected to load and all the plant machinaries are not in working?

4 Answers  

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whati s the sludge current in ups

0 Answers   Future Group,

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When we synchronize the Generator BKR with TIE BKR then Gen BKR is hold but TIE BKR is Tripped on Non directional over current but when TIE BKR is Syn. with Gen. BKR then no fault occur so what is the problem

1 Answers   ABB,

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Is there any option to replace two Genset of capacity 125KVA with one higher capacity for same office?

8 Answers  

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will 1050kva DG set withstand for back charge of 16MVA transformer

0 Answers  

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why dont we use the same pylon to carry 400 kv plus 220kv and 33 kv ?

2 Answers   Focus, Focus Energy,

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how to set the time in digital timer ?

0 Answers  

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