what happens when the transformer is connected to DC supply?

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

why the Parameters : Base Voltage & Maximum Voltage can't be equal in value in a VFD (Variable Frequency Drive) ? How much the base voltage would be lower than the maximum voltage ? If 400 V is the 3 phase output of a VFD ... then what should be the base voltage ? thanks a lot

1 Answers   Yaskawa,


when will be the iocl interview results ifaced the interview on september 8 th

0 Answers   IOCL,


how water and air molecules are conduct the heat?

1 Answers  


What is star-delta transformer?

0 Answers  


Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??

2 Answers  






How to calculate the Sizes of the cable required for one specific load? Is there any formula for that? ( EX: For 400KW load,50mtr Length, What is the LT cable Size required?)

2 Answers   Texmo,


Why Trasformers rated in KVA

13 Answers   College School Exams Tests, HAL, Oil and Gas Jobs,


Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????

0 Answers  


What is the use for cable entry in control room?

0 Answers  


what is XLPE type cable

8 Answers   Areva,


What is the difference between body earthing and neutral earthing?

2 Answers  


Why temperature rise test is conducted in bus bars and Isolators?

5 Answers   Areva,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)