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