practically all d.c machines are started with the starter other wise d.c motor is burned because large current is flowing through armature. When ever a voltage is applied across the d.c motor with out a starter a large current is flowing through motor because at starting motor armature is standstill therefore back e.m.f is zero therefore it requires large current to start. For eliminate this situation we must insert a starter into the dc motor circuit then we control the starting current in the dc motor armature circuit.Starter is limit the starting current in the dc motor armature circuit.
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