What will happen if we give transformer a dc not ac

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Question Posted / yogesh

5 Answers
9384 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

how withstand of hi-pot test outputs of transformer wire 2.5mm

0 Answers

when the control mechanism is present for an ammeter(1-10A) and 1A current is apllied what will be the reading of the meter?

2 Answers GATE,

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

0 Answers

How to maintaine ht motor efficiancy

1 Answers

what is mean by xlpe cables?

3 Answers

Why is starter necessary for a three-phase induction motor?

37 Answers BMM, Essar, Hero MotoCorp, ITI, Maruti Suzuki, Supertech, Watt,

How many methods to take IR value of Current Transformer?

1 Answers

what are the ratings of sockets?

10 Answers L&T,

What will be the full load current of 60KVA UPS. Suggest for this formula.

8 Answers ABC, Sodexo,

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

What kind of preventive maintenance are there for transformer?

0 Answers Gulf,

Is possible to increase the voltage without using transformer? why?

9 Answers

For more Electrical Engineering Interview Questions Click Here