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Why Lightning arrester used? Can we use piece of iron as a
core material of transformer, if No, why? In CRGOSS
material what is meaning of cold rolled grain oriented? Why
Impegrenation of Transformer is done? Properties of
Insulator? what is phase angle? Testing of transformers
(Routine & Monthly)?
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Answer Posted / deepak
lightning arrestor is a highly pointed device , which can
make the ehv coming from the lightning to split into
positive and negative ions...this ions are absorbed by the
carriers and they are byepassed to the earth ,which is
basically a zero potential.we cannot use iron because eddy
current produced in the iron will be very high .
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