Answer / k.prakashchandra

They are also called bypass isolators which are connected
across an equipment especially CB to bypass it for certain
operation.

Answer / er.gurpreet singh

the isolators connected in series for isolating the
particular equipment from the system while the isolators
connected in parallel are used to connect that particular
equipment to earth.they are also called as earth switch.

Answer / k.prakashchandra

Series isolators are in series with the equipment for
isolating it,parallel one is connected across the equipment
to bypass it

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