if u give d.c. supply to transformer primary then what happen.&why??????????????
Answers were Sorted based on User's Feedback
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 |
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 |
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 |
Answer / p.senthil kumaar
DC Has no change in emf.
So, primary coil becomes burn.
Is This Answer Correct ? | 4 Yes | 0 No |
is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.
How to do the meggering for a cable.
what happen if the secondry winding of the transformer is having less no of turns compare to the primery winding.
Can u Explain about the electronic trivector meter and the use of data converters in them?
Type of motor stater detail and working detail
22kV HT incoming should be 3 phase or 4 phase? why is it not 4 phase?
what is the difference between DOL starter&star-delta starter& automatic star-delta starter
What will the effect on a motor designed at 60 HZ, and operated on 50 HZ ??
how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.
What happen if an alternator rotates in reverse direction?
When measuring the Insulation resistance of a motor winding (winding to earth) using a megger meter, Applied voltage(1000V) was automatically reduced to 500V. and the measured insulation resistance values are also very low (in Kohm range) Can anyone give me a reason???
can we check the resistance of earthing electrode while it is connected with the neutral of UPS system