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what isthe emf eqation of a transformer
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Answer / reshi
Emf in primary
E1=4.44fN1BmA
Emf induced in the secondary
E2=4.44fN2BmA
Bm -flux density in weber /sq m (Tesla)
A-net cross sectional area of core in sq m.
| Is This Answer Correct ? | 12 Yes | 5 No |
Answer / loki
E=4.44*A*B*N*f
where A=area of cross section of core
B=fux density
N=no.of turns
f=operating frequency
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / anil bhatia
sorry my earliar reply there was a mistake ignore it .
new reply
Emf in primary
E1=4.44fN1Bm
Emf in secondary
E2=4.44fN2Bm
where Bm is maximum /peak flux density, in weber /sq m
(Tesla)
under no load condition E!=v1, E2=v2 , assuming negligible
Magnetizing current.
equation is v=4.44FNBm
or say V/N= 4.44FBm
1) Thus reduction in frequency F causes the increase in
flux and their by flux density.
2) Thus increase in volt/turn , V/N causes increase in the
flux and thereby flux density.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / anil bhatia
Emf in primary
E1=4.44fN1Bm
Emf in secondary
E2=4.44fN2Bm
where Bm is maximum /peak flux density, in weber /sq m
(Tesla)
under no load condition E!=v1, E@=v2 , asuming neglesible
magnetising current.
equation is v=4.44NBm
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / malvik
e= 4.44 f Bm Ai Kw Tph
wer Kw is winding factor
Tph is turn per phase
Bm is maxflux density
Ai area of iron part
| Is This Answer Correct ? | 5 Yes | 7 No |
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