if u give d.c. supply to transformer primary then what happen.&why??????????

if u give d.c. supply to transformer primary then what happen.&why??????????????

Question Posted / aab.bharti

4 Answers
9418 Views
DCS, DRDO, HCL, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / anirudh garg

if we give a dc suppy to a transformer then as the rate of change of flux is zero so no induction process ill occur but in primanry current is there ans it will effect the primary coil if it is kept for long time (if small dc applied )the wire get heated up and burn .

Is This Answer Correct ?

29 Yes

0 No

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / harish

In DC there will not be any rate of change of flux.. so transforming action will not take place

Is This Answer Correct ?

20 Yes

0 No

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / aab.bharti

winding becomes burn because resistance of winding is very low &frequency of d.c is 0 hz so indutance is 0 result net impedence is very very low

Is This Answer Correct ?

12 Yes

5 No

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / p.senthil kumaar

DC Has no change in emf.
So, primary coil becomes burn.

Is This Answer Correct ?

4 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,

15 Answers Bhel,

What do you mean by boost voltage in case of battery charger?

3 Answers MahaGenco,

What are the necessary conditions for production of rotating magnetic field.

4 Answers BARC,

What is the stander resistance value between the neutral and earth?

10 Answers Crossdomain, Sepco,

how a flip flop can be used as a latch?

0 Answers

How to convert a two phase power into a three phase power in induction machine?

0 Answers

What is meant by CFL & PL lamps

1 Answers

what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

5 Answers

How many types Switchgears?

4 Answers

What does ampere turns shows?

0 Answers

HOW DO I CALCULATE THE SETTINGS FOR THE DIFFERENTIAL PROTECTION OF A 12kV/6.6kV, 6MVA,DYN11 XMER WITH PRIMARY SIDE CTR 400/1 AND SEC SIDE CTR 600/1?

0 Answers Adhunik,

Why pmg used in electrical generators for excitation.is there any other method without pmg ?

1 Answers

For more Electrical Engineering Interview Questions Click Here