When used with a load that has a torque curve that increases with speed, the motor will operate at the speed where the torque developed by the motor is equal to the load torque. Reducing the load will cause the motor to speed up, and increasing the load will cause the motor to slow down until the load and motor torque are equal. Operated in this manner, the slip losses are dissipated in the secondary resistors and can be very significant. The speed regulation and net efficiency is also very poor. COUNT 4
QSN1 What will a motor do if the load is reduced? ANS1 speed up QSN2 What will a motor do if the load is increased? ANS2 slow down QSN3 Where are slip losses dissipated? ANS3 secondary resistors QSN4 How efficient is such a design? ANS4 very poor