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can d.c.transformer exist? if yes then what its max. rating?
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Answer Posted / hemanth
Practically IMPOSSIBLE..
ONLY CHANGE IN FLUX LINKED can INDUCE EMF in a coil
In case of DC..FLUX REMAINS CONSTANT AND NO EMF IS INDUCED..
NOTE:
There will be a momentary raise in voltage in secondary when
switching ON or OFF because sudden change in flux linkage..
THIS MIGHT DAMAGE THE WINDING...
Source: Theory and performance of electrical machines by
J.B.GUPTA
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