Q. Three phase induction motor started by DOL starter, the short circuit current is protected by __.

A
No volt coil
B
Overload relay
C
Back off fuse
D
Protective earth connection
Solution:

3 Phase Motor Starter with Overload Protection Overload is also the type of over current. So overload relays are employed to limit the amount of current drawn. But that does not mean that protects the short circuit. Fuse or MCB used in the system protects the over current.

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