What will happen if we give transformer a dc not ac

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Question Posted / yogesh

5 Answers
7745 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What will happen if we give transformer a dc not ac..

Answer / iamdon

If we supply DC to primary of transformer no emf is induced
in primary side(Accordibg to Faraday laws).It means whole
applied voltage is droped in primary winding resistance
which is very low.So high current will flow through the
primary winding which ultimately burn the primary winding.

Is This Answer Correct ?

20 Yes

0 No

What will happen if we give transformer a dc not ac..

Answer / shariff

If DC is applied to the Power Transformer, this is basically a inductive coil, as freq. is zero is DC, inductive reactance offered is zero i.e. XL=0, then it is as good as short circuiting the DC power supply, if the DC power supply can feed that much current, then that power transformer wdg will burn or due to its resistance the wdg may get heated up.

Is This Answer Correct ?

7 Yes

0 No

What will happen if we give transformer a dc not ac..

Answer / chatap

No flux will generat and primary takes high current and may burn

Is This Answer Correct ?

7 Yes

2 No

What will happen if we give transformer a dc not ac..

Answer / jyoti

NO FLUX WILL TRANSFER FROM PRIMARY SIDE TO THE SECONDARY
SIDE.HENCE THE TRANSFORMER DOESN'T PERFORM.

Is This Answer Correct ?

5 Yes

2 No

What will happen if we give transformer a dc not ac..

Answer / aravind

if current is very high it may burn out the windings
but if current is low then primary winding acts as an inductor

Is This Answer Correct ?

4 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

difference between elcb and rccb

3 Answers ITC Infotech,

In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???

6 Answers College School Exams Tests, GE, MVR, Practical Viva Questions,

Classify driling machines.

0 Answers Essar,

why we use 3 phase in our country?..why no 4,5 or 2??

2 Answers Siemens,

what is PDU in transformer?? which company manufacture??

0 Answers

What is gain margin?

0 Answers

In separately excited m/c,we excite the field by a dc source,what not with ac source?

1 Answers

USE OF 8 WAY PAN ASSEMBLY

0 Answers TCS,

how to decide choke rating for drive?

0 Answers Reliance,

how many synchronous motor are there in any power plant

0 Answers L&T,

How can get C license i am complete I.T.I electrician trade and 10 years experiance this field and i complete the dee from ksou by distance mode of this year.ksou means karnataka south open university but i want Tnelb license

2 Answers C License,

Calculation for the adequacy of 380 KVA neutral earth flat size

1 Answers Electrical,

For more Electrical Engineering Interview Questions Click Here