| A
variety of applications such as machine tools, fan and pumps,
hoists and cranes, positioning equipments and manu others need
dual speed motors. Dual speeds can be achieved either by separate
winding or by changing pole connections. By and large, by changing
the speed, the output power of the motor changes but the torque
remains almost constant. The best motor for the application can
be selected from the table below. For quantity requiremenents
special ratings can be developed. |