| 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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| 11/10/1999 | CN2348517Y Protective device for AC contactor main contact fault |
| 11/10/1999 | CN2348516Y Phase interruption protection starter for a set of three-phase AC motor |
| 11/10/1999 | CN2348515Y Open-phase overload protector for three-phase motor |
| 11/10/1999 | CN1234641A Charging-discharging control circuit and charging-type power-supply device |
| 11/10/1999 | CN1234346A Protective apparatus of braking resistor for locomotive |
| 11/09/1999 | US5982595 Redundant communications in a protective relay |
| 11/09/1999 | US5982150 Charge/discharge control circuit and chargeable electric power source apparatus |
| 11/09/1999 | US5982136 Circuit for sensing current in power trains for motor control |
| 11/09/1999 | US5982126 Power closure panel control apparatus |
| 11/09/1999 | US5982124 Method and apparatus for adaptive control of a vehicle power window |
| 11/09/1999 | US5982121 Intelligent torque limiting through current sensing |
| 11/09/1999 | US5982120 Library apparatus having a motor driving control including abnormal motor and excess current detecting circuits |
| 11/09/1999 | CA2165101C Power converter protecting apparatus for electric power system |
| 11/04/1999 | DE19819704A1 Verfahren zur zyklischen Überprüfung von Überwachungseinrichtungen in Türschließanlagen Method for cyclic testing of monitoring devices in door locking systems |
| 11/03/1999 | EP0953705A2 Method of cyclic checking monitoring devices in door closing systems |
| 11/03/1999 | CN2347297Y Electromachine protector |
| 11/03/1999 | CN2347267Y Three-phase rotary electromechanic integrally-protected relay with load indication |
| 11/03/1999 | CN1233873A Friction protector of rotor and stator of electric motor |
| 11/02/1999 | US5978195 Circuit protection arrangement |
| 11/02/1999 | US5977732 Apparatus and method for determining presence or absence of foreign object or the like caught in power-open-and-closure mechanism |
| 10/28/1999 | WO1999054979A1 Method for detecting phase failure in an asynchronous machine |
| 10/28/1999 | WO1999054978A1 Differential current protective circuit breaker |
| 10/28/1999 | DE19818055A1 Protective difference current (DI) circuit breaker with power switch for protecting electrical plant from fault currents |
| 10/28/1999 | DE19816046A1 Sicherheitsvorrichtung für einen Antrieb A safety device for a drive |
| 10/27/1999 | EP0952654A2 Bus-bar protective relay apparatus |
| 10/27/1999 | CN2346106Y Electric motor protector |
| 10/27/1999 | CN2346105Y 电机保护器 Motor protection |
| 10/27/1999 | CN1233099A System protection relay device |
| 10/26/1999 | US5973899 Automated power feeder restoration system and method |
| 10/26/1999 | US5973500 Apparatus for detecting insulation defects in devices connected into power distribution networks |
| 10/26/1999 | US5972417 Spray gun power supply monitor |
| 10/21/1999 | WO1999053589A1 Method and device for controlling a sliding or lifting sun roof device |
| 10/21/1999 | WO1999053588A1 Safety device for a drive mechanism |
| 10/21/1999 | DE19817224A1 Procedure for recognizing failure of phase of converter- controlled three phase induction machine |
| 10/20/1999 | EP0950790A1 Interface for car power window with safety logic control |
| 10/20/1999 | EP0950277A1 Device and method relating to protection of an object against over-currents comprising over-current reduction |
| 10/20/1999 | EP0950276A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation |
| 10/20/1999 | CN2344907Y Intelligence automatic controller for dynamo-electric motor |
| 10/20/1999 | CN2344906Y Car generator protector |
| 10/20/1999 | CN2344870Y Power supply switch for electrical equipment |
| 10/20/1999 | CN1045821C Exciting ground detector and ground relay in which grounding is detected by DC |
| 10/19/1999 | US5969959 Converter circuit arrangement with protection circuit |
| 10/19/1999 | US5969956 Method and a device for communication in a high voltage converter station |
| 10/19/1999 | US5969928 Exhibiting positive temperature coefficient (?ptc?) characteristics |
| 10/19/1999 | US5969926 Short circuit protection arrangement for an output buffer of an integrated circuit |
| 10/19/1999 | US5969925 Fire-initiation-protected power distribution system |
| 10/19/1999 | US5969921 Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch |
| 10/19/1999 | CA2206562C System of communicating output function status indications between two or more power system protective relays |
| 10/17/1999 | WO1999050860A1 Power distribution network incorporating a voltage support transformer and process of use |
| 10/14/1999 | WO1999052192A1 High vswr mismatch output stage |
| 10/14/1999 | WO1999052121A1 Motor operator for overhead air break electrical power distribution switches |
| 10/14/1999 | DE19816140A1 Verfahren und Schaltungsanordnung zur Sicherheitsüberprüfung einer Hochspannungsversorgungsanlage Method and circuit arrangement for security verification of a high voltage supply system |
| 10/14/1999 | DE19815960A1 Verfahren und Vorrichtung zum Ansteuern einer Schiebe-Hebedachvorrichtung Method and apparatus for controlling a sunroof device |
| 10/14/1999 | DE19814269A1 Safety device for piece of furniture |
| 10/13/1999 | EP0949736A1 Electronic bridge and half-bridge circuits with suppression of high-voltage transients on the power supply line |
| 10/13/1999 | EP0949735A2 Method and circuit arrangement for safety control of a high voltage supply system |
| 10/13/1999 | EP0949734A2 Dual microprocessor electronic trip unit for a circuit interrupter |
| 10/13/1999 | EP0949733A2 Accessory network for an electronic trip unit |
| 10/13/1999 | CN2343713Y Soft starter for ac asynchronous electric machine |
| 10/13/1999 | CN2343712Y Add-and-subtract difference type safety compensator switch |
| 10/13/1999 | CN2343704Y Zero sequence current motor protector with power directional element |
| 10/13/1999 | CN2343703Y Negative sequence inverse time-lag protector with outside fault blocking circuit |
| 10/13/1999 | CN2343701Y Power supply phase lack protector |
| 10/13/1999 | CN1045696C DC motor with rotating sensor |
| 10/12/1999 | US5966071 Power window with detecting function of sticking of foreign matter |
| 10/07/1999 | WO1999050944A1 Maintaining, positioning or clamping device |
| 10/07/1999 | DE19811269C1 Electronic circuit with protective circuit for lubrication controllers in motor vehicles, esp. lorries |
| 10/06/1999 | EP0948123A1 Protecting method for inrush current preventing resistor |
| 10/06/1999 | EP0948111A2 Fault protection arrangements and methods for electric power distribution systems |
| 10/06/1999 | EP0947373A2 Device for protecting a braking resistor for locomotives |
| 10/06/1999 | EP0947040A1 A rechargeable battery with a built-in safety circuit for a portable electric apparatus |
| 10/06/1999 | EP0947028A1 Power supply and method of protecting batteries therein |
| 10/06/1999 | CN2342509Y Anti-fire protector for AC loop |
| 10/06/1999 | CN2342508Y Over-current protector for electronic ballast |
| 10/06/1999 | CN2342507Y Charging and discharging protector for DC operation power source |
| 10/06/1999 | CN2342506Y 马达保护器 Motor protection |
| 10/06/1999 | CN1230816A Motor protector apparatus |
| 10/06/1999 | CA2268233A1 Dual microprocessor electronic trip unit for a circuit interrupter |
| 10/05/1999 | US5963440 Controlled three-phase rectifier with current comparison between rectifier segments |
| 10/05/1999 | US5963404 Restricted earth fault protection for transformers using a directional element |
| 10/05/1999 | US5963019 Battery pack with battery protection circuit |
| 10/05/1999 | US5963001 Circuit arrangement and method for operating an adjusting device |
| 10/05/1999 | US5962934 Arrangement for electrical power supply |
| 10/05/1999 | CA2153111C Air conditioning device |
| 09/30/1999 | WO1999049551A1 Integrated lithium battery protection circuit |
| 09/30/1999 | DE19812882A1 Circuit-breaker drive circuit arrangement |
| 09/30/1999 | CA2323553A1 Integrated lithium battery protection circuit |
| 09/29/1999 | EP0945955A2 Battery cell bypass module |
| 09/29/1999 | EP0945954A2 Method of detecting pinching of object of power window apparatus |
| 09/29/1999 | EP0945953A2 Method of detecting pinching of object of power window apparatus |
| 09/29/1999 | EP0945952A2 Circuit for driving polyphase motor |
| 09/29/1999 | CN2341308Y Protective relay for electric motor |
| 09/29/1999 | CN2341307Y Self locking protector for phase-off of three phase motor |
| 09/29/1999 | CN2341306Y Electric motor protector with memory |
| 09/29/1999 | CN2341305Y Electric motor protector by current and temperature |
| 09/29/1999 | CN2341304Y Thysistor frequency dividing oscillation eliminator |
| 09/29/1999 | CN2341303Y Electronic protector for transformer for neon |
| 09/29/1999 | CN1230303A Method and arrangement for disconnecting consumers |
| 09/29/1999 | CN1230295A Power supply and method of protecting batteries therein |
| 09/28/1999 | US5959817 Control device for operating a wiper motor |