Answer Posted / 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 |
Post New Answer View All Answers
How to find out damper winding failure for synchronous machine?
If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?
oltc of a transformer, how it works? and what are the equipment consist of describe briefly?
Discribe type of fault in DOL and stardelta startor.
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
What do you mean by an instrument transformer?
what is the safety of voltage power transformer(2250KVA0
What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)
difference between crane drive and line drive.
pls tell me function of closing coil of A.C.B.
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?
Direction of flow of active power and reactive power with logic?
The simple way of finding the leakage quantity and % in compressed air distribution system
why we can use 1 to 5V dc
What is force on parallel conductors ?
