Interested to Buy Any Domain ? << Click Here >> for more details...
If DC supply is given to a transformer it may
a) Work
b)Not Work
c)Give lower voltage than the rated voltage on secondary
side.
d)burn the winding
- 12 Answers
- 16386 Views
- wbsedcl, I also Faced
- E-Mail Answers
Answer Posted / abhishek
d)burn the winding
Ans-If we apply dc supply across the transformer primary side,there will be no pulsating or alternating flux in the transformer core.Hence there will be no mutual as well as self induced emf as the flux is not a time varying one.As there is no self induced emf in transformer primary,there will be no back emf and as transformer primary resistance is low,there will be a high current in the primary side.Hence high copper loss and it will damage the winding insulation.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.
On what basis the the size of Lightning arrester for buildings are selected ?
sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence
What are the application of filter?
hi friends this is a newcomer in your community of enthusiastic peoples. i am preparing for SSC (CPWD JUNIOE ENGG EXAM FOR ELECTRICAL) pls guide me on the same how to crack it? PLS LET ME KNOW IS ANYONE THERE WHO PASED IT? CAN I GET THE QUESTION PAPERS OF PREVIOUS EXAMINATIONS?
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
how to changeover ups in this power failur time?
Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.
why do we carry out winding resistance test?
we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)
What is Fire Panel ? How it works ?
How to check the cable fault / hv test of transformer cable.
can you any one give exact mathematical relation between AC current and DC current?
What is meant by RVT and NDR ? expansion and details of it
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?
