Answer / s k sudhakar

TO ATTEND ANY PROBLEM IN A PARTICULAR SYSTEM, THAT SYSTEM
IS REQUIRED TO BE ISOLATED. IF LINK IS NOT PROVIDED COMLETE
ISOLATION IS NOT POSSIBLE.

Answer / suseendran

Phase will have voltage(potential) whereas neutral is
potential free.

Imagine
if a phase conductor(wire) gets cut and touches the earth.
Fault current flows thro it and fuses are required to
isolate the circuit.

Whereas if a neutral conductor gets cut and touches the
earth. Nothing will happen since it is potential free. So
fuses are not required.(Links are cheaper than fuses)

Answer / mritunjay singh yadav

neutral link is provided in neutral to protect the current
transformer from being the open circuit in faulty condition.

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