Answer / bijay

V = 4.44 F X PHI X N

TO INCREASE V AT F=50HZ,
SPEED OF GENERATOR IS INCREASED WHICH INTURN WILL INCREASE
THE FREQ. ALSO.
FOR THIS REASON DROOP CURVE IS FOLLOWED.WHICH PROVIDES A
STABLE SYSTEM.
FOR MORE EXPLANATION REFER BOOKS ON GENERATOR STABILITY

Answer / felixraj

it is necessary to maintain in all magnetic circuit to avoid
saturation.

Answer / gbs

V/f determine the overfluxing condition..
normally its used for over excitation condition in generator protion. if v/f increases core will saturate.

why the air gap is necessary in the transformer core

1 Answers   Eskom,

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I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok

1 Answers  

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what is the relation between KVAR,KVA,KW?why we are mentioning capcitor rating in kvar?what is meant by arcing horn and horn gap in transformer?what is equipotential wire?

1 Answers  

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What happens if the secondary of the transformer is shorted?

2 Answers  

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Which UPS (inverter) is better and why ? 12 V inverter and 24 V (two 12 V batteries in series) inverter which is better ......... which has the longer backup which has the greater charging time which has the greater discharging time thank you

2 Answers  

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What is difference between mcb and mccb.

1 Answers  

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Can Dy11 and Dy1 vector group transformers be paralleled?

1 Answers  

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How we select the vector group of 3phase power transformer?

1 Answers   wbsedcl,

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how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1 Answers  

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Can you explain about pole discrepancy scheme

1 Answers   NCC,

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how to calculate unit consumption on 3phase 380-415 v0lt kilowatt motor eg ( 55kw,380v,3phase 50-60hz)

1 Answers  

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Why two main buses and one transfer bus scheme not using for 400kV switchyard

5 Answers  

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