what happens when the transformer is connected to DC supply?

Question Posted / kure

4 Answers
13028 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what happens when the transformer is connected to DC supply?..

Answer / shyamkr

when dc supply is given to the transformer,since dc can't
produce fluctuating flux ,it will not induce e.m.f in the
primary winding of the transformer.when this counter emf is
not induced in the primary ,the almost full applied
voltage(except little voltage drop in the primary winding
resistance and leakage reactance) is forced in the primary
winding and it may burn.
as far as secondary is concerned ,no emf is induced in it
because emf doesn't vary in case of dc current.

Is This Answer Correct ?

37 Yes

3 No

what happens when the transformer is connected to DC supply?..

Answer / piyush sharma

tha transformer work on mutual induction and key fector is frequency and in dc supply no frequency so primary winding work as heater and after sometime its burn

Is This Answer Correct ?

20 Yes

1 No

what happens when the transformer is connected to DC supply?..

Answer / dharmans

when we r transformer connected to the DC supply it 's
winding should be burnt. because, in DC supply there is no
back EMF. when there is no back EMF then the primary winding
get higher current then the winding will be burst. so any
were any time we don't connect the DC supply to the
transformer.

Is This Answer Correct ?

4 Yes

0 No

what happens when the transformer is connected to DC supply?..

Answer / pem

excuse me bosses,

if we connect DC voltage the core become
magnet, then why it doest produce emf
. could yourself explain in detail

Is This Answer Correct ?

1 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

0 Answers Kirloskar,

What is the estimated total hydropower potential of india?

0 Answers

please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

0 Answers

in transformer the unit of power is in kva why?

4 Answers Videocon,

why are use star delta startor.

4 Answers

why and how fault current flows through ground?

1 Answers

how to save the power in company?

0 Answers

what is the value of voltage & current lightning during rainy season.

0 Answers

Why iron core losses are constant at all loads in a transformer ?

1 Answers GATE,

How would you calculate power loss in a resistor?

0 Answers

When we use a multimeter, while checking continuity of a closed circuit , what is happening inside multimeter, how it is working to produce a beep wheather it is closed or open.. is there any internaly voltage/current source inside multimeter?

3 Answers TNEB Tamil Nadu Electricity Board,

what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?

0 Answers

For more Electrical Engineering Interview Questions Click Here