if u give d.c. supply to transformer primary then what happen.&why??????????????

Answers were Sorted based on User's Feedback



if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / anirudh garg

if we give a dc suppy to a transformer then as the rate of change of flux is zero so no induction process ill occur but in primanry current is there ans it will effect the primary coil if it is kept for long time (if small dc applied )the wire get heated up and burn .

Is This Answer Correct ?    29 Yes 0 No

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / harish

In DC there will not be any rate of change of flux.. so transforming action will not take place

Is This Answer Correct ?    20 Yes 0 No

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / aab.bharti

winding becomes burn because resistance of winding is very low &frequency of d.c is 0 hz so indutance is 0 result net impedence is very very low

Is This Answer Correct ?    12 Yes 5 No

if u give d.c. supply to transformer primary then what happen.&why??????????????..

Answer / p.senthil kumaar

DC Has no change in emf.
So, primary coil becomes burn.

Is This Answer Correct ?    4 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

in three pin pluge there three pins one is phase and second is earth third is nutral why nutral high diameter compare with phase and earth

10 Answers   Radiant,


What are the three major categories of error?

0 Answers  


what is the resistance value of our human body?

9 Answers  


What is R/X ratio? I have heard that this ratio is higher in a radial distribution system.Why is it so? I would appreciate a word. Thank you

1 Answers   Power Grid, Vignan University,


when transformer oil should be filtered/tested?

3 Answers  






regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

0 Answers   Reliance, Southco Utility,


What is the function of induction motor when low voltage is apply.

6 Answers  


why the motor running in delta connection ? it can be in star?

13 Answers   NTPC,


why we cant use AC supply products in DC supply?

21 Answers  


in india per day how much power is generated including all power station

0 Answers  


Why NGR is provided in sub station?

4 Answers   MMS,


What are the main parts of central chiller plant? Explain the function of each stage.

0 Answers   HSL, Shankar Electricals,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • 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)