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)
03/2000
03/08/2000EP0984462A2 Electrical transformer
03/08/2000CN2368208Y Abnormal prompting protector for refrigerator
03/08/2000CN2368207Y Electronic protector for motor
03/08/2000CN2368206Y Microcomputor delay protection device for power equipment
03/08/2000CN1246985A Switched-mode power supply with current and voltage limitation
03/08/2000CN1246972A Series compensation of electric alternating current machines
03/08/2000CN1246969A Synchronous machine
03/08/2000CN1246745A Automatic demagnetizing and slip over-voltage protecting unit for large electric generator
03/08/2000CN1246620A Current transformer saturation crrection using analog nerval net
03/08/2000CN1050245C Circuit for avoiding instantaneous short circuit of lower power tube with higher one of dc-to-ac converter
03/07/2000US6034855 Method and apparatus for attenuation of, and damage protection from, high energy electromagnetic pulses
03/07/2000US6034497 Apparatus for detecting pinching of an object in a power window
03/07/2000US6034495 Apparatus for detecting pinching of an object in a power window
03/04/2000CA2281406A1 Solid state protector for high frequency applications
03/01/2000EP0982826A2 Battery protection circuit and electronic device
03/01/2000EP0982825A1 Apparatus for regulating the speed of rotation of an electrical motor and apparatus for centrifuging comprising such a device
03/01/2000EP0981849A1 Circuit for the protection of electrical devices
03/01/2000CN2367003Y Exaessive load protective arrangement for automobile accumulator
03/01/2000CN2367002Y Excessive load protective arrangement for electric motor
03/01/2000CN2367001Y Frequency sensitive rheostat starting protective arrangement for threephase asynchronous motor
03/01/2000CN2367000Y Cable fixing type emergency protective arrangement for miniature electric motor
03/01/2000CN2366880Y Voltage stabilization protector for ac circuit
03/01/2000CN1246215A Power supply monitoring IC and battery pack
03/01/2000CN1246214A Power supply monitoring integrated circuit device and battery pack
03/01/2000CN1246213A Device and method relating to protection of object against over-currents comprising over-current reduction and current limitation
03/01/2000CN1246212A Device and method relating to protection of object against over-currents comprising over-current reduction
03/01/2000CN1246211A Device and method relating to protection of object against over-currents comprising over-current reduction
03/01/2000CN1246210A Device and method relating to protection of object against over-currents comprising over-current reduction and current limitation
02/2000
02/29/2000US6031748 Power saving circuit of power factor adjusting type
02/29/2000US6031705 Surge protection circuit, in particular for inputs of integrated circuits
02/29/2000US6031702 Short circuit protected DC-DC converter using disconnect switching and method of protecting load against short circuits
02/29/2000US6031701 Device and method for overvoltage protection
02/24/2000WO2000010249A1 Electronic circuits with wide dynamic range of on/off delay time
02/23/2000EP0981195A2 Control arrangement for aperture closures
02/23/2000CN2365802Y Short-distance connecting line cipher locking protector
02/23/2000CN2365801Y Protection controller for three phase AC electric motor starting operation
02/23/2000CN1245360A Intelligent protector of accumulators for diesel locomotive
02/22/2000US6028755 DC-to-DC converter capable of preventing overvoltages
02/22/2000CA2167546C Dv/dt limiting of inverter output voltage
02/17/2000WO2000008747A1 Controlled rectifier bridge with over-voltage protection
02/16/2000EP0980134A1 Method of protecting a high power converter and protection device for implementing the method
02/16/2000EP0980129A2 Current transformer saturation correction using artificial neural networks
02/16/2000CN2364610Y Automatic phase interruption protection arrangement for motor
02/16/2000CN2364609Y Integrated protector for motor
02/16/2000CN1244965A Circuit arrangement for preventing deep discharge of a battery
02/16/2000CN1244741A Tested quantity earth line and phase line selector
02/15/2000US6025696 Battery cell bypass module
02/10/2000WO2000007273A1 Circuit for limiting the making current for a transformer
02/10/2000WO2000007205A1 Device for short-circuit protection
02/10/2000DE19935260A1 Stored magnetic energy damping circuit in a generating circuit
02/10/2000DE19835316A1 Gesteuerte Gleichrichterbrücke mit Überspannungsschutz Controlled rectifier bridge with surge protection
02/10/2000DE19834474A1 Einrichtung zum Kurzschlußschutz Means for short-circuit protection
02/08/2000US6023139 Brushless DC fan driver with an integral overall protection capability
02/08/2000US6023107 Circuit arrangement for controlling a wiper motor
02/03/2000WO2000005797A1 System and method for safe transport of an actuating fluid and electrical power, and multipurpose cable used in said system
02/03/2000WO1999059231A9 Self-sourcing, isolated zone selective interlocking system for use with electronic trip circuit breakers
02/02/2000EP0976194A1 Switch-mode power supply with over-current protection
02/02/2000EP0976189A1 Method for determining the location of a partial discharge
02/02/2000CN2362219Y Phase interruption protector for phase motor
02/02/2000CN1243610A Control device with forced operation function and semiconductor integrated circuit device
02/02/2000CN1243348A Microcomputer type protection method for double-bus system when out of order
02/02/2000CN1049074C Breaker
02/01/2000US6021037 Device including a thermally protected switching transistor
02/01/2000US6021035 Apparatus for protection of power-electronics in series compensating systems
02/01/2000US6020718 Battery capacity predicting method, battery unit and apparatus using battery unit
02/01/2000US6020702 Single phase compressor thermostat with start relay and motor protection
01/2000
01/27/2000WO2000004619A1 Arcing fault detection system
01/27/2000DE19833490A1 Voltage DC-link or indirect converter e.g. for locomotives and traction vehicles
01/26/2000EP0974483A2 Protective device against retroactive voltages from permanently excited electrical drives
01/26/2000EP0974182A1 Electrical safety device with conductive polymer sensor
01/26/2000EP0974081A1 Power supply and electronic ballast with low-cost inverter bootstrap power source
01/26/2000CN1242637A Electric power conversion means
01/26/2000CN1048831C Driving circuit for switched reluctance motor
01/25/2000US6018452 Residential protection service center
01/25/2000US6018449 Method for automated reconfiguration of a distribution system using distributed control logic and communications
01/20/2000DE19926089A1 Coil short circuit detector for electric motors in CPU of microcomputer
01/19/2000EP0972327A2 Battery protection system
01/19/2000CN1241838A Inverter
01/19/2000CN1241829A Zero-sequence current motor protecting circuit with power direction element
01/19/2000CN1241828A Negative-sequence inverse time-lag protection circut with external fault blocking unit
01/18/2000US6016260 Switched-mode power supply with current and voltage limitation
01/18/2000US6016002 Stacked silicon-controlled rectifier having a low voltage trigger and adjustable holding voltage for ESD protection
01/16/2000CA2277670A1 Current-limiting device
01/12/2000EP0971472A1 Control device with forced operation function and semiconductor integrated circuit device
01/12/2000EP0971471A2 Improvements in or relating to parallel-feeder directional overcurrent protection
01/12/2000EP0971220A2 Device for determining the temperature of the windings in an electrical motor operated by a control circuit
01/12/2000EP0970840A2 Protection device against voltage kickback of permanently excited electrical drive
01/12/2000EP0970554A1 Process and arrangement for selective network monitoring for switchgear
01/12/2000CN2358620Y Multifunctional timely quick protector for electric motor
01/12/2000CN2358619Y Intelligence protecting monitor for electric motor
01/12/2000CN2358618Y Power-off protector for three-phase dynamo-electric motor
01/12/2000CN1241320A Protecting method for inrush current preventing resistor
01/12/2000CN1241063A Fan drive device
01/12/2000CN1241057A Improvements in or relating to parallet-feeder directional overcurrent protection
01/05/2000EP0968460A1 Clock line over-current protector and industrial control system
01/05/2000CN2357438Y Switch power with over-voltage protection and output soft starting function
01/05/2000CN1048111C Phase-shifting transformer and protection system of phase-shifting transformer
01/04/2000US6011368 Sensorless detection of a locked rotor in a switched reluctance motor
12/1999
12/30/1999DE19828057A1 Unit monitoring continuous voltage supply to SRAM in vehicle controller
12/29/1999EP0966782A1 Method for electronic control and adjustment of the movement of electrically actuated units