In a 3 point starter, the no volt release coil is connected in series with the shunt field shunt field circuit so that it carries the shunt field current. When the speed control of the dc motor is carried out by shunt field control, the field current may be weakened to such an extent, at which the no volt release coil may not be able to keep the stator arm in the on position. Thus, a 3 point starter often trips when the speed control is carried out by shunt field control.