What is over fluxing in transformer?
Answer / krishan chand tyagi
Transfomer overfluxing can be result of
1. Overvoltage
2. Low system frequency
A transformer is designed to operate at or below a maximum
magnetic flux density in the transformer core. Above this
design limit the eddy current in the core and nearby
conductive components cause overheating which within a very
short time may cause severe damage.The magnetice flux in
the core is proportional to the voltage applied to the
winding divided by thhe impedence of the winding.The flux
in the core increase with either increasing voltage or
decreasing frequency.During starrtup or stardown of
generator connected transformers, o following a
loadrejection, the transformer may exeperience an excessive
ratio of volts to hertz, that is, become overexcited.
Is This Answer Correct ? | 95 Yes | 8 No |
1)What will be full load current for 1000kva 3 phase generator. 2)What will be full load current for 20Kva 1 phase inverter.
How to do the REF Stability test for power transformers in Site?
How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?
can anyone give an idea about dia calculation in cold rolling mill
what is the meaning of knee point in current transformer and how to calculate?
what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?
What is the main difference between generator and alternator
hi sir i have load of 17.5kw in 3 phase lighting circuit which mcb i can use
why we use shunt in a rectifier system ?
Which type of questions well asked. ?
what is ceiling voltage in an exciter?
1 Answers KEPCO Energy Service Company,
What are thermo couple cables and where they are used.