| Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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| 01/22/2002 | US6340878 Silicon equivalent PTC circuit |
| 01/22/2002 | US6340872 Movable barrier operator having force and position learning capability |
| 01/16/2002 | EP0981849B1 Circuit for the protection of electrical devices |
| 01/16/2002 | EP0746899B1 Switching regulator having high current prevention features |
| 01/16/2002 | CN2472389Y Phase-off protecting contactor |
| 01/16/2002 | CN2472388Y Passive protector for motor |
| 01/16/2002 | CN2472387Y Protector for three phase motor |
| 01/16/2002 | CN2472386Y Energy saving motor protector |
| 01/16/2002 | CN2472385Y Instrument for testing CET3 motor protector |
| 01/16/2002 | CN1331517A Integrated transmitting/receiving radio frequency device |
| 01/16/2002 | CN1331507A Dual-loop current limitation controller of motor controller |
| 01/15/2002 | US6339526 Low voltage cutoff circuit with short circuit detection capability and method of operation thereof |
| 01/15/2002 | US6339310 Motor driving control device |
| 01/13/2002 | CA2313993A1 Apparatus for preventing thermal damage to an electrical power transformer |
| 01/10/2002 | DE10032655A1 Elektrischer Überstromauslöser für einen Niederspannungs-Leistungsschalter Electrical overcurrent release for low-voltage circuit breakers |
| 01/10/2002 | DE10031925A1 Elektromotor, insbesondere Wischermotor Electric motor, in particular wiper motor |
| 01/09/2002 | CN2471003Y Automatic protective controller for three-phase water-pump motor |
| 01/09/2002 | CN2471002Y Comprehesive protection device for multiple motors |
| 01/09/2002 | CN2470838Y Insulated charged detecting-sampling protector of high-voltage electric equipment |
| 01/09/2002 | CN1330441A High power current limiter |
| 01/09/2002 | CN1330440A Electronic controller for over-current protection |
| 01/09/2002 | CN1077739C Control system for three-phase motor |
| 01/08/2002 | US6338026 Method for limiting an electric current through an electrical component, and limiting apparatus |
| 01/08/2002 | US6338016 Method and apparatus for detecting a motor stall condition in an electric assist steering system |
| 01/08/2002 | US6337788 Fault condition protection |
| 01/08/2002 | CA2141420C Detecting faults in power lines |
| 01/08/2002 | CA2018938C Microprocessor-based stand-alone digital protective relay for power transformers |
| 01/03/2002 | WO2002001693A1 Electronic overload trip for a low-voltage circuit breaker |
| 01/03/2002 | WO2002001324A2 Protection zone selection in an electric power system |
| 01/03/2002 | WO2002000354A1 Electrostatic painting device |
| 01/03/2002 | US20020000782 Electric motor, in particular wiper motor |
| 01/03/2002 | DE19835183A1 Protection circuit for accumulator is based on thyristor principle with two transistors that keep each other conducting or not conducting, and protects against short circuit and excessive discharge |
| 01/03/2002 | DE10029853A1 Circuit for reducing contact current during contact bounce in switch device e.g. for use in motor vehicles, has drop resistor which receives switch-on current until parallel switch responds |
| 01/02/2002 | EP1168644A2 Transmission/reception integrated radio-frequency apparatus |
| 01/02/2002 | EP1168621A1 Integrated circuit with protection device |
| 01/02/2002 | EP1168591A1 Torque limited electric motor, in particular windshield wiper motor |
| 01/02/2002 | EP1168561A2 Reverse battery protection circuit |
| 01/02/2002 | EP1168560A2 High electrical power current limiter being useful in electrical power system |
| 01/02/2002 | EP1168559A1 Window object detection with start-up compensation |
| 01/02/2002 | EP1166419A1 Power line protection devices and methods for providing overload protection to multiple outputs |
| 01/02/2002 | CN2469600Y Automatic protecting device of air compressing machine |
| 01/01/2002 | WO2002091541A1 Protection of electrical power lines |
| 01/01/2002 | US6335871 Motor operation controller and insulation type bidirectional DC voltage converter |
| 01/01/2002 | US6335851 Current-limiting device |
| 01/01/2002 | US6335608 Fault protection circuitry for motor controllers |
| 01/01/2002 | US6335602 Squeeze protection system |
| 01/01/2002 | US6335600 Motor drive unit and method of detecting malfunction of motor drive unit |
| 01/01/2002 | US6334503 Electrically operated power steering apparatus selectively restricting electric power supply to motor by using initial value and subsequent increase of temperature of heated portion therein |
| 01/01/2002 | CA2198096C A self-excited oscillator type switch power supply with overcurrent protection |
| 01/01/2002 | CA2108444C Distance relay with load encroachment protection for use with power transmission lines |
| 12/27/2001 | WO2001099252A1 Method for controlling the displacement of a part, displaced by an electromotor, of a closure device in a motor vehicle |
| 12/27/2001 | US20010054847 Power supplying apparatus for a vehicle and an intensive wiring apparatus |
| 12/26/2001 | CN1328373A Automatic control and all-weather monitor device for three-phase motor |
| 12/25/2001 | US6333614 Method and circuit for monitoring the operating condition of electric motors |
| 12/25/2001 | US6332506 Motor driven power steering device |
| 12/20/2001 | WO2001097367A1 Thermal protection circuit for high output power supplies |
| 12/20/2001 | WO2001097357A2 Electronic protective relay with variable and fixed delay tally time of current protection |
| 12/20/2001 | WO2001097356A1 Electrical switchgear comprising a number of switches |
| 12/20/2001 | US20010052761 Vehicular AC generator having voltage control unit |
| 12/20/2001 | DE10126177A1 Circuit for monitoring electric load has switching device that opens on reaching or exceeding defined operating characteristic value placed in memory when initializing device |
| 12/20/2001 | DE10028492A1 System for controlling mains controlled a.c. synchronous motor, operates motor in asynchronous mode at reduced speed if speed deviation persists for defined period |
| 12/20/2001 | DE10028445A1 Door movement control method for vehicle involves stopping operation of electric motor after preset duration when jamming is detected, and then reversing electric motor |
| 12/20/2001 | CA2412614A1 Electronic protective relay with variable and fixed delay tally time of current protection |
| 12/19/2001 | EP1164679A1 Window object detection system with vibration compensation |
| 12/19/2001 | EP1164245A2 Window characteristic mapping for object detection |
| 12/19/2001 | EP1163712A1 An improvement in a starting system for an electric motor |
| 12/19/2001 | EP1082798B1 Electronic tripping device for a circuit breaker |
| 12/19/2001 | EP1012955B1 Precharging circuit for a capacitor connected to the output of a line-commutated power converter |
| 12/19/2001 | CN2466838Y Immersed pump with overcurrent protector |
| 12/19/2001 | CN1327630A Method and apparatus for limiting and protecting software to coordinate volume of a turbine generator for revising a synchronous generator exitation device |
| 12/19/2001 | CN1327603A Silicon equivalent PTC circuit |
| 12/19/2001 | CA2350984A1 High electrical power current limiter being useful in electrical power system |
| 12/18/2001 | US6331941 Short circuit detection method and apparatus and motor drive incorporating same |
| 12/18/2001 | US6331764 Supplemental battery overcharge protection device |
| 12/18/2001 | US6331763 Devices and methods for protection of rechargeable elements |
| 12/13/2001 | WO2001095474A1 Method for determining the position of an element driven by the drive shaft of a direct current motor |
| 12/13/2001 | WO2001094733A1 Method for determining the rotational position of the drive shaft of a direct current motor |
| 12/13/2001 | DE10111986A1 Halbleiterversorgungsschaltung Semiconductor supply circuit |
| 12/13/2001 | DE10028038A1 Position determining method for DC-motor-driven element, involves moving element to block position on system side and afterwards to mechanically defined block position, and normalizing block position on system side |
| 12/13/2001 | DE10028037A1 Determining the rotating position of the rotor of a DC motor, involves determining current ripple to be expected during slowdown of rotor of DC motor |
| 12/12/2001 | EP1162126A1 Electric power steering system |
| 12/12/2001 | EP0809822B1 Delayed safety braking apparatus for a servomotor control system |
| 12/12/2001 | CN2465375Y :Automatic protection controller for single phase water pump motor |
| 12/12/2001 | CN1076133C Dual bus system computer work-off protection |
| 12/12/2001 | CN1076132C Overcurrent protection circuit |
| 12/11/2001 | US6330141 Electronic protective relay with variable and fixed delay tally time of current protection |
| 12/11/2001 | US6329777 Motor drive control apparatus and method having motor current limit function upon motor lock |
| 12/11/2001 | CA2236228C Multiple winding sensing control and protection circuit for electric motors |
| 12/06/2001 | WO2001065677A3 Remote command and control device for at least an electrical element |
| 12/06/2001 | DE10122085A1 Superconductive switch element for altering electrical resistance has HF magnetic radiation used for switching between superconductive and normally conducting modes |
| 12/05/2001 | CN2463999Y Overvoltage and overcurrent protection and warning device for main distributing frame |
| 12/05/2001 | CN1325185A Technological method of raising the reliability of power-saving switch |
| 12/05/2001 | CN1325166A Sealed compressor with temp. feed-back provided to motor protector |
| 11/29/2001 | WO2001091265A2 Fault tolerant motor drive arrangement with independent phase connections and monitoring system |
| 11/29/2001 | WO2000032443A3 Electrical system with battery and security disconnection |
| 11/29/2001 | EP1144224A3 Electrical system with battery and security disconnection |
| 11/28/2001 | EP1158642A1 System for detecting the end position of a mobile part by detecting the blocking current |
| 11/28/2001 | EP1158641A2 Sealed compressor with temperature feedback to motor protector unit |
| 11/28/2001 | CN1324511A Method for limiting an electric current passing through an electrical component and limiting device |
| 11/28/2001 | CN1324087A New-type digital quantity output circuit |