Description : The speed of a 4-pole induction motor is controlled by varying the supply frequency while maintaining the ratio of supply voltage to supply frequency (V/f ) constant. At rated frequency of 50 Hz and rated voltage of 400 V ... load torque is constant (A) 882 rpm (B) 864 rpm (C) 840 rpm (D) 828 rpm
Last Answer : The speed of a 4-pole induction motor is controlled by varying the supply frequency while maintaining the ratio of supply voltage to supply frequency (V/f ) constant. At rated frequency of 50 Hz and rated voltage of 400 ... torque is constant (A) 882 rpm (B) 864 rpm (C) 840 rpm (D) 828 rpm