why the secondary winding of the transformer is not open circuited ?

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Question Posted / aka.tech.agg

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why the secondary winding of the transformer is not open circuited ?..

Answer / raghavendran.r

I believe that the questioner meant to ask about Current Transformer where it will result in CT BURN OUT if the secondary is left open due to immense flux built up at the secondary.This is why the CT is built to operate in subtractive polarity which will cancel out the flux built from the primary on secondary.

Otherwise in a VT or in normal power transformer the secondary winding should never be shorted bcoz it will result in severe short circuit.which is very dangerous.

Hopes this answers your query.

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why the secondary winding of the transformer is not open circuited ?..

Answer / priya

I hope the question relates to current transformer.If the secondary is open circuited,the whole of the primary current will work as magnetising current.A dangerously high voltage will be induced in sec wdg bcoz the sec has large no of turns as compared to primary in CT.And this high voltage gives fatal shocks and for this reason secondary of CT must always be earthed.

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why the secondary winding of the transformer is not open circuited ?..

Answer / hm

it will draw a large no load current.

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4 No

why the secondary winding of the transformer is not open circuited ?..

Answer / arun

In order to carry the load,secondary wdg should be closed
circuited.