Patents
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)
05/2002
05/08/2002CN1348623A Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection
05/08/2002CN1348243A Digital relay protector
05/08/2002CN1084536C Automatic demagnetizing and slip over-voltage protection apparatus for large electric generator
05/07/2002US6384584 Current control circuit
05/07/2002US6384558 Driving device for motor-driven compressor
05/02/2002WO2002035674A1 Method for controlling an adjustment process for a piece
05/02/2002WO2002035673A1 Flash over avoidable voltage conversion circuit
05/02/2002EP1202422A2 Improved hermetic refrigeration compressor motor protector
05/01/2002CN1084072C 电源监控集成电路器件及电池组 Power monitoring integrated circuit device and battery pack
05/01/2002CN1084070C Controlling system, protection controlling system for power system and storage medium for storing program
05/01/2002CN1083924C Window opening and closing apparatus
04/2002
04/30/2002US6381152 Method of driving semiconductor switching device in non-saturated state and power supply apparatus containing such a switching device
04/30/2002US6381110 Method and apparatus for detecting isolation faults in motor/inverter systems
04/30/2002US6381109 Method of controlling safety tripping means in a high voltage generator, and high voltage generator using the method
04/30/2002US6380763 Charge switch control circuit
04/25/2002WO2001058005A3 Exciter assembly telemetry
04/25/2002US20020048134 Protective device and communication device
04/25/2002US20020048129 Systems and methods for a safety circuit for an electric motor
04/24/2002EP1198871A1 Malfunction detection of a machine driven by an electric motor
04/24/2002CN2488213Y Substraction phase running protector for main transformer of power substation
04/24/2002CN1346174A Two-line controlled protection-control integrated motor
04/24/2002CN1083561C Control circuit for refrigerating system
04/23/2002US6377431 Non-automatic power circuit breaker including trip mechanism which is disabled after closure of separable contacts
04/23/2002US6377429 Protective circuit for battery
04/18/2002US20020045972 Load-adaptive control system, in particular for transport devices and used in aircraft
04/18/2002US20020044037 High electrical power current limiter being useful in electrical power systems
04/18/2002US20020043962 Voltage regulator for alternator and method of controlling power generation of alternator
04/18/2002DE10113081C1 Arrangement for protecting multi-voltage on-board electrical system against breakdown between voltage levels, external crossed polarity has voltage limiting unit for low voltage plane
04/17/2002EP1198048A2 Voltage regulator for alternator and method of controlling power generation of alternator
04/16/2002US6373671 Apparatus with an over-current shutdown means and an over-temperature shutdown means
04/16/2002US6373670 Fault protection apparatus
04/16/2002US6373669 Process and arrangement for selective network monitoring for switchgear
04/16/2002CA2193317C Method and apparatus for remote testing of coordination of overcurrent protection devices in an electrical power system
04/11/2002WO2002029951A1 Device and method for detecting a jamming situation at moving surfaces in a motor vehicle
04/11/2002US20020041504 Converter system having converter modules connected by a DC intermediate circuit, and method for operating such a system
04/11/2002US20020041213 PLL circuit
04/11/2002US20020041172 Starting system for an electric motor
04/11/2002DE10048602A1 Vorrichtung und Verfahren zur Detektion einer Einklemmsituation bei bewegten Flächen am Kraftfahrzeug Apparatus and method for detecting a jamming situation with moving surfaces on the vehicle
04/11/2002DE10048601A1 Motorised setting movement control method e.g. for automobile electric window or sunroof, involves operating electric drive motor with reduced power during motor run-up phase
04/10/2002EP1195877A1 Inverter system with dc-link connected inverter modules and method of operation
04/10/2002EP1195876A2 Digital protective relay system
04/10/2002CN2485854Y Protector for reserve nickel hydrogen battery in instruments from excessive discharge
04/10/2002CN1344051A Protector and communicating device
04/09/2002US6369996 Fault protection scheme
04/09/2002US6369995 Protection relay device for distribution equipment
04/09/2002US6369543 Method for symmetrizing asymmetric faults
04/09/2002US6369533 Piloting circuit for an inductive load in particular for a DC electric motor
04/09/2002US6369460 Power supply monitoring apparatus for vehicle
04/04/2002WO2002027890A1 Reduction of sheath losses on high voltage cables
04/04/2002WO2002027132A1 Power closure sensor system and method
04/04/2002US20020040266 Power closure sensor system and method
04/04/2002US20020039671 Battery with protection circuit for preventing malfunction
04/04/2002US20020039269 Intelligent power module
04/04/2002US20020039037 Load driving device
04/04/2002US20020039008 Power closure sensor system and method
04/04/2002DE10045341A1 Verfahren zur Berücksichtigung der Fahrzeugneigung bei Betätigung von Schließteilsystemen an Kraftfahrzeugen Procedures to take account of the vehicle inclination when operating closing part systems on motor vehicles
04/04/2002DE10044312A1 Steuerschaltung und Verfahren zur Steuerung einer Schließeinrichtung Control circuit and method for controlling a closing device
04/03/2002EP1193838A1 Overload-protected electric motor, specially DC conmutator motor
04/03/2002EP1193579A2 Control system and method for controlling a closing device
04/03/2002EP1192706A1 Direct current motor safety circuits for fluid delivery systems
04/03/2002EP1192695A1 Protective device for preventing the overload of capacitors by high-frequency voltages
04/03/2002EP1088318B1 Device for safely disconnecting an electrical load with especially high inductivity from an electrical dc-voltage supply
04/03/2002CN2484687Y Alpha-angle overload protector of lange-capacity silicon controlled rectifier cabinet
04/03/2002CN1343385A Improvement in starting system for electric motor
04/03/2002CN1082270C Intelligent protector of accumulators for diesel locomotive
04/02/2002US6366434 Apparatus for safely disconnecting an electrical load from an electrical DC voltage supply
04/02/2002US6366042 Anti-pinch power window system and method
04/02/2002US6364619 Sealed compressor with temperature feedback to motor protector unit
03/2002
03/28/2002WO2002025791A2 Apparatus and method for detecting a short circuit in a lighting system
03/28/2002WO2001082437A3 Method and apparatus for detecting ground fault current
03/28/2002US20020036909 Phase control circuit and switching regulator
03/28/2002DE10115480A1 Protection device of electric power steering device for e.g. motor vehicle limits current supply to motor based on limiting values determined based on thermal time constants of motor and control circuit
03/28/2002DE10043139A1 Monitoring unit for fuel cell stack including at least one cell group each having at least 2 groups of fuel cells in series and each group has voltage within group voltage range and range
03/27/2002EP1191658A2 Load adaptive control system, in particular for transport devices such as in airplanes
03/27/2002EP0927447B1 Actuator, in particular an electric motor gear drive system, for moving closure parts operated by extraneous force
03/27/2002CN2483878Y Microelectronic motor protector with high performance price ratio
03/27/2002CN2483877Y Multi-functional electronic protector for motor
03/27/2002CN1341860A Device and method for determining local short-circuit
03/26/2002US6362584 Virtual sensor for window position
03/26/2002US6360486 Window object detection system with vibration compensation
03/26/2002CA2252393C Coaxial cable protection device
03/21/2002WO2002023709A1 A method and a device for controlling the operation of an actuator unit
03/21/2002WO2002023691A1 Method for making allowance for the vehicle attitude on operating closing piece systems on motor vehicles
03/21/2002WO2001097357A3 Electronic protective relay with variable and fixed delay tally time of current protection
03/21/2002US20020033683 Movable barrier operator
03/21/2002DE10041606A1 Elektromotorischer Antrieb und Verfahren zum Betreiben eines elektronisch kommutierten Elektromotors Electric motor drive and method for operating an electronically commutated electric motor
03/21/2002DE10040080A1 Motor protection e.g. for choke flap in IC engine, involves computing direct current motor winding temperature from motor parameters; power is at least temporarily interrupted if threshold winding temperature exceeded
03/20/2002EP1188240A1 Load control system having an overload protection circuit
03/20/2002EP1188211A1 An electrical machine winding ground-fault protection system
03/20/2002EP1119891A4 A protective relay-based monitoring system of dc power within an electric power substation
03/20/2002CN1081406C Semiconductor apparatus for use in low voltage power supply
03/19/2002US6359408 Low cost object detection circuit for vehicle closure
03/14/2002US20020030957 Off-line converter with digital control
03/14/2002US20020030459 Power window system with control unit for detecting foreign object caught in car window
03/14/2002DE10043020A1 Monitoring unit for loading-conveyor of aircraft, determines threshold after certain operating state is reached and checks if control value exceeds or falls below threshold
03/14/2002DE10041607A1 Elektrisches Arbeitsgerät sowie Verfahren zu dessen Betreiben Electrical work device and method of operation
03/13/2002EP1187289A1 Control device for an electric motor powered by ac
03/13/2002EP1187288A2 Device and method for determining rare short circuit
03/13/2002EP1186086A1 Current distribution system
03/13/2002EP1186085A1 Electromotive drive