Answer Posted / sainianil
starter is mainly used for the protection of machine and we with the help of starter we can able to isolate the machine from the main power supply in case of fault ,
the following items used in starter are:-
1 isolator: to cut the main supply to the machine without effecting the system
2 fuse: for shortcircuit protection
3relay for the overcurrent
4 contactor controlled by the control ckt
now a days it is replaced by the MCB because of its longlife..{FOR SHORT CKT AND OVERCURRENT}
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