| 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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| 12/29/1999 | CN2356444Y Motor protector with delay automatic starter |
| 12/29/1999 | CN2356443Y Phase losing protector of frequency changing air conditioner |
| 12/29/1999 | CN1240057A Rechargeable battery with built-in safety circuit for portable electric apparatus |
| 12/29/1999 | CN1240036A Power supply and electronic ballast with low-cost inverter boostrap power source |
| 12/29/1999 | CN1047895C Motor operation controller and insulation type bidirectional DC voltage converter |
| 12/29/1999 | CN1047888C Process for regulating automatic door operated by drive motor |
| 12/29/1999 | CN1047887C Device for differentially protecting power transformer |
| 12/28/1999 | US6009362 Anomalous condition detecting apparatus for cooling motor fan |
| 12/28/1999 | US6009008 Soft strat bridge rectifier circuit |
| 12/28/1999 | US6008971 Fault protection arrangement for electric power distribution systems |
| 12/28/1999 | CA2034389C Stall protection circuit for an electronically commutated motor |
| 12/25/1999 | CA2275675A1 Electric motor stall protection system |
| 12/23/1999 | WO1999066618A1 A protection device and method |
| 12/23/1999 | WO1999065717A1 Method for controlling a sunroof |
| 12/23/1999 | DE19827110A1 Verfahren zum Ansteuern eines Schiebedaches A method for driving a sunroof |
| 12/23/1999 | DE19826906A1 Determining cos phi from amplitude ratio of apparent power |
| 12/23/1999 | DE19825972A1 Safety device for electric motor group supplied by drive regulator |
| 12/22/1999 | EP0966086A2 Integrated protection circuit, method of providing current-limiting and short-circuit protection and converter employing the same |
| 12/22/1999 | EP0966085A1 Control device for the cut-off of a motorised shading device |
| 12/22/1999 | EP0966084A1 Method for controlling the triggering of a safety device in a high voltage generator and high voltage generator using such method |
| 12/22/1999 | EP0823957B1 Auto reverse power closure system |
| 12/22/1999 | CN2355496Y Switching power sources with overcurrent protection |
| 12/22/1999 | CN2355487Y Electronic motor protector |
| 12/22/1999 | CN2355486Y Dispersed computer remote protector for electric substation |
| 12/22/1999 | CN1239236A Power saving circuit of power factor adjusting type |
| 12/21/1999 | US6005785 Power supply circuit |
| 12/21/1999 | US6005760 Combination current sensor and relay |
| 12/21/1999 | US6005757 Electrical switching device or trip unit acquiring predetermined settings from another electrical switching device or trip unit |
| 12/21/1999 | US6005735 Temperature monitoring process and device |
| 12/21/1999 | US6005361 Method for controlling a direct current drive |
| 12/18/1999 | CA2275222A1 Procedure for controlling safe triggering means in a high voltage generator and high voltage generator using such a procedure |
| 12/18/1999 | CA2275065A1 Improvements in or relating to parallel-feeder directional overcurrent protection |
| 12/16/1999 | DE19825409A1 Device for detecting coil temperature of electric motor |
| 12/15/1999 | CN2354285Y Directional bus protector |
| 12/15/1999 | CN2354284Y Motor protector |
| 12/15/1999 | CN2354283Y Motor protective switch |
| 12/14/1999 | US6002602 Switching power source with power outage detection signal |
| 12/14/1999 | US6002566 Resettable overcurrent protective circuit |
| 12/14/1999 | US6002260 Fault sensor suitable for use in heterogenous power distribution systems |
| 12/14/1999 | US6002228 Device for electronically controlling a motor vehicle displacement mechanism |
| 12/14/1999 | US6002227 Device and process for electronic monitoring of an adjusting drive in a vehicle |
| 12/14/1999 | US6002224 One touch vehicle window operating circuit |
| 12/14/1999 | US6001497 Overcharge preventing device |
| 12/09/1999 | WO1999063641A1 Detection of faults on transmission lines in a bipolar high-voltage direct current system |
| 12/09/1999 | WO1999063637A1 Electrical safety device with conductive polymer sensor |
| 12/09/1999 | WO1999063635A1 Redundant communications in a protective relay |
| 12/09/1999 | WO1999063561A2 Device for safely disconnecting an electrical load with especially high inductivity from an electrical dc-voltage supply |
| 12/09/1999 | DE19911098A1 Voltage decision circuit for charging type battery used in mobile telephone |
| 12/09/1999 | CA2333483A1 Device for safely disconnecting an electrical load |
| 12/08/1999 | EP0963034A1 Drive circuit with signal detection capability for a DC brushless fan motor |
| 12/08/1999 | EP0635170B1 Electric vehicle drive train with main contactor protection |
| 12/08/1999 | CN2353078Y Precision electronic arrestor |
| 12/08/1999 | CN2353077Y Single phase electric motor protector |
| 12/08/1999 | CN2353076Y Transformer differential protection ac current back-flow interruption monitoring arrangement |
| 12/08/1999 | CN1238098A Quick-reset circuit for auxiliary power supply |
| 12/08/1999 | CN1238073A Fault control circuit for switched power supply |
| 12/07/1999 | US5999388 Method and apparatus for limiting current in a direct voltage network of a power transmission system |
| 12/07/1999 | US5999383 Arrangement for detecting quenches in superconducting coils |
| 12/07/1999 | US5998974 Charge/discharge control circuit and chargeable electric power source apparatus |
| 12/07/1999 | US5998950 Garage door operator safety apparatus |
| 12/07/1999 | CA2038063C Monitoring system for step-type switching transformer |
| 12/02/1999 | WO1999062159A1 Electronic tripping device for a circuit breaker |
| 12/02/1999 | DE19825384A1 Elektronische Auslöseeinheit für einen Leistungsschalter The electronic trip unit for a circuit breaker |
| 12/01/1999 | EP0961381A2 Power window switch device |
| 12/01/1999 | EP0960458A1 Circuit arrangement for preventing deep discharge of a battery |
| 12/01/1999 | EP0767986B1 Battery recharging apparatus and method |
| 12/01/1999 | CN1237025A Bus relay protector |
| 12/01/1999 | CN1237024A Controlling system, protection controlling system for power system and storage medium for storing program |
| 12/01/1999 | CN1047041C Rectifier bridge apparatus |
| 12/01/1999 | CN1047038C Circuit arrangement |
| 12/01/1999 | CN1047037C Control circuit for protecting excess discharge of battery |
| 11/30/1999 | US5995911 Digital sensor apparatus and system for protection, control, and management of electricity distribution systems |
| 11/30/1999 | US5995347 Method and apparatus for multi-function electronic motor protection |
| 11/30/1999 | US5994858 Method and apparatus for detecting obstruction to powered window movement |
| 11/25/1999 | WO1999060683A1 Battery pack protection circuit |
| 11/25/1999 | WO1999060682A1 Method and device for determining state variables |
| 11/25/1999 | CA2332846A1 Battery pack protection circuit |
| 11/24/1999 | EP0958648A1 Switched-mode power supply with current and voltage limitation |
| 11/23/1999 | US5990726 Circuit configuration to detect excess temperature due to current flow |
| 11/23/1999 | US5990724 Method and a device for detecting and handling short-circuit phenomena for power semiconductor devices of turn-off type connected in series |
| 11/23/1999 | US5990663 Charge/discharge control circuit and charging type power-supply unit |
| 11/23/1999 | US5990648 Method for detecting locked-axle conditions without a speed sensor |
| 11/23/1999 | US5990570 Power supplying apparatus for a vehicle and an intensive wiring apparatus |
| 11/18/1999 | WO1999059231A1 Self-sourcing, isolated zone selective interlocking system for use with electronic trip circuit breakers |
| 11/18/1999 | WO1999059170A1 Surface mounted magnetic components having sheet material windings and a power supply including such components |
| 11/18/1999 | DE19835576A1 Control system for permanently excited electric motor e.g. for vehicles |
| 11/18/1999 | DE19822056A1 Temperature protective circuit for protecting electric motor from overheating |
| 11/17/1999 | EP0957559A2 Method of synchronizing line differential protection device, and line differential protection device |
| 11/17/1999 | EP0957556A2 Electrical switching device or trip unit acquiring predetermined settings from another electrical switching device or trip unit |
| 11/17/1999 | EP0957555A2 Electric power system protection and control system |
| 11/17/1999 | EP0782779B1 Transient voltage protection circuit for electrical power converters |
| 11/16/1999 | US5986902 Integrated protection circuit, method of providing current-limiting and short-circuit protection and converter employing the same |
| 11/16/1999 | US5986866 Solid state overload relay |
| 11/16/1999 | US5986865 Battery protection device and a battery device employing such a battery protection device |
| 11/16/1999 | US5986442 Load drive device having short-circuit protection function |
| 11/16/1999 | US5986421 Safety device for power window |
| 11/16/1999 | US5986359 Power delivery circuit with short circuit protection |
| 11/16/1999 | US5983567 Safety device for automatic window opening and closing |
| 11/11/1999 | CA2271443A1 Electrical switching device or trip unit acquiring predetermined settings from another electrical switching device or trip unit |
| 11/10/1999 | EP0954771A1 System and method for providing backup protection in a power substation |