Secondary thyristor control for AC wound rotor motors
Sparkless circuit for low horsepower electronic motor brake
Speed control means for squirrel-cage motor
Speed varying device
Squirrel cage induction motors
Static traction/braking switch-over circuit for a variable speed
Traveling control apparatus for electric vehicles
Two stage electrical braking for a variable speed AC induction m
Variable speed motor system
Voltage source inverter and variable frequency, constant voltage