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explain why the secondary terminal of current transformer
should not be lift open circuited.
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Answer Posted / ramesh kumar k
Mainly the current Transformer works on the principle that
Primary mmf = secondary mmf
i.e
Primary AmpereTurns(AT) = Secondary AT
so if the secondary is Open circuited, there is no current
in the Secondary hence secondary AT=0. In that case there
is no opposing mmf in the secondary to neutralize the
primary mmf. So the CT secondary will induce heavy
voltages and winding of the secondary will burn...
simply to understand guess what happends if we pump water
into a tank without opening valves for water to go out..
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