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
9669 Views
DRDO, HCL, DCS, 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

If the capacitor bank is installed in switchyard say 132/22kv then on LT side say 22kv/0.433kv is it necessary to install capacitor bank for maintaining power factor. if pf is maintained on HT side then will that be maintained on LT side as well.if not then how&why??????/ please explain...........

3 Answers MacLellan,

what is carona and how is occur?

5 Answers

How to Calculate Transformer Earthing Electrode Rod Size both Body and neutral Earthing ? Any Standard Formula? Please Suggted

1 Answers EnPro,

How to select busbar?

2 Answers

in DG synchronization system can i short R,Y,B- phase(DG-1) to R,Y,B Phase (DG-2), HOW IT WORK . WHAY WE NEED TO SYNCHRONIZATION.

1 Answers

Difference between ELCB and RCCB?

5 Answers

how to identify the direction flow of electrons in a conductor? if i want to check the sequence in kv lines, is any device is available?

3 Answers

Which motor has more efficiency ;Synchoronous or Induction motor ?

4 Answers TATA,

define displacement & magnitude ?

1 Answers

is there any lightning by passer is arranged in ship like buildings?

1 Answers

i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

1 Answers

What is the high tension lines voltage and low tension lines voltage?33 kv is high tension line or low tension.

1 Answers MPSEB,

For more Electrical Engineering Interview Questions Click Here