why dc power can not be used in transformer?
- 33 Answers
- 61668 Views
- GE, Sail, I also Faced
- E-Mail Answers
Answer Posted / jinen dand
Transformer works on Mutual Induction principle. Mutual
induction principle works only on Ac suppy.
So dc power cannot be used in transformer.
If dc power is supplied to transformer following things
will happen
1. if winding resistance is low then according to ohm law
high current will flow through winding which will cause
high temp rise if supply sustains then winding may get
damage.
2. If winding resistance is high compare to applied voltage
then only contant flux around winding will be there.
It is very good question..........
| Is This Answer Correct ? | 37 Yes | 5 No |
Post New Answer View All Answers
What are the roles and responsibilities of electrical engineer in cement plant
How isolater function when installed inelectrical 440V wiring
What is the voltage gain or transfer function of amplifier?
How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.
What do you mean by screen of power cables?
How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
Do you know what is dry-out test in x'mer
What is the universal motor?
what is the best method of grounding in 30 MW generator?
1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?
pls tell us AC plant are how do work and parts name with picture
fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be
When are the directional relays used?
why we r not earthed Control cable of C.T. terminals
