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What is the need of ISOLATION Transformer?

Answer Posted / lakshmi

isolation transformer is a 1:1 transformer. its basic
principle is same as that of ordinary transformer. only the
difference is it can`t step up or step down the voltage. it
provides only isolation between primary and secondary.
strikly speaking that isolation transformer provides more
safety for electrically operated equipment like hand
drilling machines, electric shaving kit etc.

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