Apparatus for switching windings of AC three-phase motor
Automatic fault protection system for power recovery control
Control system for a wound-rotor motor
Control system for a.c. motors
Controlled rotor rectifier arrangement for a slip-recovery drive
Device for controlling the commutating angle of an inverter devi
Electric apparatus
Electric motor
Electric rotating apparatus
Electronic shorting of wound rotor windings
Induction generator/motor system
Induction motors having squirrel cage rotors analogous to commut
Low frequency feeder fault protection
Method of controlling speed of at least one induction motor and
Method of controlling the power of an induction motor
Protecting apparatus for secondary excitation type variable spee
Sensorless drive control and method for doubly-fed reluctance mo
Slip recovery system for wound rotor motor
Two-quadrant operation system for a slip-recovery drive
Variable-speed generator/motor system