What happens when DC supply is given to transformer

Question Posted / guest

4 Answers
6652 Views
CESC, IBM, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What happens when DC supply is given to transformer..

when dc supply is given to the transformer momentary emf is generated at the secondary side and collapse suddenly.
because flux does not change periodically due to dc supply.

Is This Answer Correct ?

20 Yes

4 No

What happens when DC supply is given to transformer..

Answer / tirupathi rao

transformer winding will get damaged, why because for Dc flux produced will be zero,emf generated in winding i zero so difference in supply voltage and emf produced high. as the transformer winging resistance also less so high current flow through winding so transformer get damaged

Is This Answer Correct ?

8 Yes

1 No

What happens when DC supply is given to transformer..

Answer / arun singh mehra

when a dc supply is given to a transformer initially a flux is generated in primary windings but there is no emf produced because of e=-d(change in flux)/change in time.and there is no
output produced in the secondary output.

Is This Answer Correct ?

10 Yes

7 No

What happens when DC supply is given to transformer..

Answer / dineshkumar

when the dc supply passes through the transformer winding transformer core will gets magnatised (electro magnetic energy generated)

Is This Answer Correct ?

0 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

how to calculate the battery AH

0 Answers Turbo,

what is diff b/w electrical & electronics ?

6 Answers Bhel, UltraTech,

Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers

Why the transformers making noise?

2 Answers L&T,

what is need of air gap in expansion section in busbar?

3 Answers

What is the kva?

2 Answers Makino Auto, SAL Steel Power, Sapphire Group,

Why dnt we generate 5-ph or 7-ph supply like as 3-ph supply

2 Answers

why core losses and copper losses does not depend on power factor?

5 Answers

What are linear elements and non linear elements? and I don't want answers with graph related

1 Answers

what is the role of energy meter in distribution system ?

0 Answers

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 Answers

wat is meant by PX class in ct?

0 Answers

For more Electrical Engineering Interview Questions Click Here