Answer / chaitanya

the rating of the exciter for generator is generally taken as
2-3% of the rating of the generator....

can a rotating machine give the DC output without commutator? if yes, how? if no, why?

6 Answers   BARC,

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To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

0 Answers  

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what is current actully?significance of current...not rate of change of flow.....

3 Answers  

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In separetly excited m/c,we excite the field by a dc source,what not with ac source?

2 Answers  

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can any one tell me the formula for calculating the power and unit consumpetion

9 Answers   Avalon,

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which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

0 Answers   Dalkia,

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How to conduct Magnetic Balance Test, Measurement of Excitation Current (both on HV- and LV-side) and vector group on a 1000 KVA distribution transformer. There is a neutral on HV side.

1 Answers  

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can some one clearly explain why -48 volt DC use in telecom site????

0 Answers  

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why is the earthing pin on 3 pin top are big and thick

3 Answers   Marriott,

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What is difference between stable and steady?

1 Answers  

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How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.

8 Answers  

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if one of the phase is failed to 3 phase IM. what will happen?

6 Answers  

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