What will happen if I apply DC to AC transformer? please
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Answer Posted / ranjith
The principle involved in working of a transformer is
mutual induction. Both electrical and magnetic energy are
interchangeable.
Simply saying change in magnetic field creates emf.
i.e., if flux linking with a coil changes due to the
current flowing in the same coil, then the type of emf
induced is called self induce emf.
Similarly if the flux linking with the coil is changing due
to the current flowing in another coil, then the type of
emf induced is called mutually induce emf. This is the
principle involved in transformer.
The transformer has two windings namely low voltage (L.V)
and high voltage (H.V). These two coils (windings)
magnetically coupled but electrically isolated. The
connection between these two coils existing when there is a
change in flux which is only set up by AC. This is not the
case in that of DC.
Dc means no change in flux-> no emf -> no coupling between
two coils.
So the winding which we give supply is just seems to be
short circuited. So if the resistance is not capable to
oppose the current-> high current-> coil burns.
What will happen if I apply DC to AC transformer?
Theoretically not works
But practically the transformer will burn. It may be
varying for rating of the transformer also.
Transformer means it is for ac only
No need to say it as ac transformer.
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