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
- 13260 Views
- wbsedcl, I also Faced
- E-Mail Answers
Answer Posted / baljinder singh
First of all ,when we give the dc supply to
transformer,flux set up around the winding or in core ,but
this flux is statoinary and not link with winding so there
is not produce the back emf .The resistence of primary is a
few ohm(1-5).According to ohm law I=V/R .
When voltage applied across ,the back emf is not
produce ,resistence is very low ,so heavy current flowing
throw it .The winding will burn.
| Is This Answer Correct ? | 17 Yes | 2 No |
Post New Answer View All Answers
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
What is the equivalent circuit of a transformer and its vector diagram?
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
what is frequency response?
define the active power?
what rectifiers is and what are the types of rectifiers?
Merits & Demarits of Oil circuit & Air circuit breakers ?
How can we measure the residual voltage in dc machines?
how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???
working principle of AC Servo Motor with its construction
3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw
Could you measure voltage in series?
How we calculate the size of ht cable for any transformer
What is the instrument to check the rotating diode fuse of alternator in running conditions?
1.What is captive power plant? 2.What is national grid?Give brief idea.
