
x Contents
Deep bar rotors 186
Starting and run-up of slipring motors 188
Influence of Supply Voltage on Torque-speed Curve 191
Generating and Braking 192
Generating region - overhauling loads 193
Plug reversal and plug braking 194
Injection braking 196
Speed Control 197
Pole-changing motors 198
Voltage control of high-resistance cage motors 199
Speed control of wound-rotor motors 200
Power-factor Control and Energy Optimization 201
Slip energy recovery (wound-rotor motors) 203
Single-phase Induction Motors 204
Principle of operation 204
Capacitor-run motors 206
Split-phase motors 207
Shaded-pole motors 208
7 INVERTER-FED INDUCTION MOTOR DRIVE ...