Question { 3304 }

What happend if we connect star point to
ground of a star connected motor?
And what will be effect on system and
effeciency of motor?

Answer

If we connect star point of star connected motor the star connections will be city converted into line to ground network which will increase the system voltage by 73% and it will cause a high current flow through motor and all motor design factor will effected seriously and there is high risk of insulation destruction