218151 ⎘
Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by progressive increase of frequency of supply to primary circuit of motor
WIRELINE POWER SUPPLY DURING ELECTRIC POWERED FRACTURING OPERATIONS
#2Hybrid drive circuit for variable speed induction motor system and methods of control
#3Wireline power supply during electric powered fracturing operations
#4ELECTRIFIED VEHICLE CONTROL TO DETECT STATUS OF INDIVIDUAL PHASES OF THREE-PHASE MOTOR
#5Arc resistant drive with bypass and synch transfer
#6Hybrid drive circuit for variable speed induction motor system and methods of control
#7Motor starter and method for starting an electric motor
#8Method for identifying the magnetic anisotropy of an electric rotary field machine
#9Motor control device
#10Three-phase AC/AC converter with quasi-sine wave HF series resonant link
#11Motor control system with integrated solid-state contactor and relays and method of operation thereof
#12Frequency converter, bypass frequency conversion control system and switching control method thereof
#13Hybrid drive circuit for variable speed induction motor system and methods of control
#14Method and device for operating an electric motor
#15Acceleration method for V/F controlled induction motor in flux-weakening region
#16Driver circuit and method for single-phase and three-phase induction motors
#17Hybrid drive circuit for variable speed induction motor system and methods of control
#18Circuit and method for reducing inrush current of a three phase motor
#19Wireline power supply during electric powered fracturing operations
#20Circuit and method for reducing inrush current of phase converter motor
#21Integrated controller for closure operator unit
#22Connecting device for motor and supply network
#23Cooling system with increased efficiency
#24SWITCH CONFIGURATION FOR A MATRIX CONVERTOR
#25Motor control apparatus and method for controlling motor
#26Control device and control method for vehicular power system
#27Method for starting an electric motor
#28Systems, apparatus, and methods for soft starting large AC motors with a variable frequency drive
#29Method and device for starting motors in weak grids
#30Hybrid electric-power supplying system
#31Cooling system with increased efficiency
#32Method and apparatus for controlling motor torque
#33Method and device for an induction motor start
#34Control methodology for an AC starter-generator system
#35ELECTROMECHANICAL SYSTEM HAVING A VARIABLE FREQUENCY DRIVE POWER SUPPLY FOR 3-PHASE AND 1-PHASE MOTORS
#36HVAC/R system with variable frequency drive power supply for three-phase and single-phase motors
#37Bypass and synchronous transfer arrangement for a medium voltage drive control system
#38Fan and controlling device thereof
#39GARAGE DOOR OPENER
#40Soft starting method and system thereof in the way of wave-skipping with stepped frequency and stepless voltage regulating for a motor
#41Connection of an electric motor to a supply network
#42Motorized system for closing a building
#43CONSTRUCTIVE ARRANGEMENT IN A SOFT-STARTER
#44Motor controller and method of controlling the motor
#45Solid state reversing AC motor starter with DC power source
#46System and method for limiting AC inrush current
#47Device and method to monitor an apparatus
#48Method and system for limiting the current output by a speed controller operating according to a U/F control law