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why should series motor be started with load and shunt
motor should be started without load??????
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Answer Posted / ali
in series motor field winding also carries armature current
so that flux is proportinal to armature current.and speed
is inversly proportional to flux i.e is armature current
N=1/Ia hence during starting the current is very low if
there is no load hence speed of the motor is dangerously
high which can cause mechanical damage to the motor.
in shunt motor field winding is parallel to armature
winding.the field is current is mostly constant.so flux
also constant.sppeed also constant
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