Answer Posted / vivek kumar
at no load the current passing through the field is minimum
and almost zero ,so the flux at the field will be also
almost zero and we know that the speed is inversly
perpotional to the flux in the field so due to almost zero
flux the speed will be maximum and almost infinite at the
starting and it will cause damege of the beerings armatures
shaft due to sudden break in its inertia.
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