| Patents for H02H 6 - Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images (678) |
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| 10/25/1995 | EP0678962A1 Electronic trip device with storage device |
| 10/17/1995 | US5459631 Electronic charging motor controller |
| 10/10/1995 | CA2050223C Overload current protection apparatus |
| 09/06/1995 | EP0559726B1 Process and device for finding the load and/or loadability of electronically controlled components or groups of components |
| 08/29/1995 | US5446362 Thermal protection for AC traction motors using temperature estimations to calculate torque limits and blower speed requirements |
| 07/26/1995 | EP0664594A1 Protection circuit for motor-driven pumps |
| 07/25/1995 | US5436784 Motor protection relay using thermal models |
| 05/23/1995 | US5418677 Thermal modeling of overcurrent trip during power loss |
| 04/06/1995 | DE4333591A1 Controller for switching the electric drive motor, in particular of an air compressor, on and off to match the demand |
| 03/08/1995 | EP0642198A1 Electronic load protecting device |
| 03/01/1995 | EP0640252A1 Process for monitoring an electric motor for thermal overloading |
| 12/13/1994 | US5373205 Method and apparatus for limiting motor current |
| 10/27/1994 | WO1994024750A1 Method of monitoring a temperature rise of a squirrel cage induction motor |
| 10/26/1994 | EP0443011B1 Processor controlled circuit breaker trip system having an intelligent rating plug |
| 09/29/1994 | WO1994022198A1 Diode monitoring |
| 09/15/1994 | WO1994021020A1 Power load improvement of semiconductor valves |
| 09/14/1994 | EP0615266A1 Electric protection device with thermal detector |
| 08/10/1994 | EP0609662A1 Method for determining the thermal rigidity of safety switches by consideration of the harmonic waves of the phase currents and device for realization of this method |
| 06/21/1994 | US5323287 Protective device for electric motors |
| 05/11/1994 | EP0596643A1 Overcurrent protection device with visual indicators for trip and programming functions |
| 04/20/1994 | EP0592783A2 Heat regulator for integrated circuits |
| 04/19/1994 | US5305234 Thermal protection apparatus for a synchronous machine |
| 04/12/1994 | US5303160 Load controller with digitally modeled overload protection and analog tracking of heat state during power off |
| 03/31/1994 | DE4303018C1 Determining thermal resistance of safety switches taking account of phase current harmonics - using analogue measurement, computerised digital processing of phase currents and rapid Fourier transformation |
| 02/15/1994 | US5287292 Heat regulator for integrated circuits |
| 02/01/1994 | US5283708 Overload current protection apparatus |
| 12/14/1993 | US5270898 Sure chip plus |
| 12/08/1993 | EP0572606A1 Remotely programmable electronic trip system |
| 11/25/1993 | WO1993023904A1 Process for monitoring an electric motor for thermal overloading |
| 11/18/1993 | DE4216040A1 Verfahren zur Überwachung eines Elektromotors auf thermische Überlastung Method for monitoring thermal overload of an electric motor on |
| 11/03/1993 | EP0567904A1 Parameter monitoring equipment for electrical power transformer center |
| 09/28/1993 | US5249141 Method and apparatus for maintaining an active device below a maximum safe operating temperature |
| 09/01/1993 | CN1022008C Circuit breaker with over-temp. protection and low error calculator |
| 07/20/1993 | CA1320560C Circuit breaker with over-temperature protection and low error i_t calculator |
| 07/14/1993 | EP0335904B1 Multi-phase electronic temperature controller |
| 07/07/1993 | EP0550426A1 Method and device for thermal monitoring of an electric motor on board a vehicle and application to a power-steering system |
| 07/06/1993 | US5225992 Computerized overcurrent detector |
| 06/24/1993 | WO1993012568A1 Device and process for regulating a generator |
| 06/24/1993 | DE4141837A1 Vorrichtung und verfahren zur regelung eines generators Apparatus and method for control of a generator |
| 06/19/1993 | WO1993012566A1 Remotely programmable electronic trip system |
| 06/19/1993 | CA2101849A1 Remotely programmable electronic trip system |
| 06/02/1993 | EP0544132A1 Method and device for avoiding the overheating of electric motors |
| 02/18/1993 | DE4126385A1 Limiting current esp. in large sync. generator - antiphase clocking of analogue transistor switches in memory circuit simulating thermal behaviour of machine |
| 01/27/1993 | EP0443011A4 Processor controlled circuit breaker trip system having an intelligent rating plug |
| 12/15/1992 | US5172291 Intelligent power controller |
| 12/01/1992 | US5168415 Motor control method |
| 11/24/1992 | CA1310688C Operational method and control switching apparatus for monitoring the starting-cycle circuit of electric high-voltage motors with asynchronous start-up |
| 11/10/1992 | US5162669 Semiconductor switch including a device for measuring a depletion layer temperature of the switch |
| 09/30/1992 | EP0506220A2 Electronic spring charging motor controller |
| 08/04/1992 | US5136457 Processor controlled circuit breaker trip system having an intelligent rating plug |
| 07/22/1992 | EP0495302A2 Integrated circuit with analog and digital portions and including thermal modeling |
| 07/02/1992 | DE4038198A1 Verfahren und vorrichtung zur erfassung und/oder regelung der temperatur elektrischer oder elektronischer bauteile oder baugruppen A method and device for detecting and / or regulating the temperature of electrical or electronic components or assemblies |
| 06/11/1992 | WO1992010017A1 Process and device for finding the load and/or loadability of electronically controlled components or groups of components |
| 05/19/1992 | US5115371 Circuit breaker comprising an electronic trip device |
| 05/14/1992 | WO1992008268A1 Method and apparatus for maintaining an active device below a maximum safe operating temperature |
| 04/28/1992 | CA1299644C Apparatus for overload protection |
| 04/14/1992 | US5103926 Power steering apparatus with electric motor |
| 04/01/1992 | EP0477959A2 Overload current protection apparatus |
| 03/31/1992 | US5101315 Drive control apparatus for electric actuator |
| 03/17/1992 | CA1297527C Motor controller |
| 03/03/1992 | CA1296762C Electromagnetic contactor tandem control system for thermal protection of a bidirectional motor drive |
| 02/11/1992 | US5088000 Electronic thermal relay and appropriate thermal element |
| 10/22/1991 | CA1291264C Multi-phase electronic temperature controller |
| 10/16/1991 | EP0451324A2 Semiconductor switch |
| 10/15/1991 | US5057962 Microprocessor-based protective relay system |
| 10/15/1991 | US5057811 Electrothermal sensor |
| 09/11/1991 | EP0445315A1 Process and device for monitoring overloads adaptive to the load |
| 08/28/1991 | EP0443011A1 Processor controlled circuit breaker trip system having an intelligent rating plug. |
| 04/24/1991 | EP0423737A1 Power steering apparatus with electric motor |
| 04/11/1991 | DE4030475A1 Electric motor control affording warning of impending overheat - comparing predetermined critical temp. entry with on-off control signal count correlated with obtd. thermodynamic characteristics |
| 04/10/1991 | EP0421892A1 Circuit breaker with an electronic release |
| 03/14/1991 | CA2024644A1 Circuit breaker comprising an electronic trip device |
| 03/01/1991 | WO1991003828A1 Processor controlled circuit breaker trip system having an intelligent rating plug |
| 01/01/1991 | US4982143 Phase control circuit for protection of a motor against thermal overload |
| 12/25/1990 | US4980624 Adaptive overload protection of electric motors and static switching drives |
| 10/17/1990 | CN1010068B Method and device for detecting load of motor and protecting motor from overload |
| 07/05/1990 | CA2007088A1 Electronic temperature relay and related thermal element |
| 07/03/1990 | US4939437 Motor controller |
| 06/27/1990 | EP0375262A2 Electrothermal sensor |
| 03/20/1990 | US4910631 Circuit breaker with over-temperature protection and low error I2 t calculator |
| 01/30/1990 | US4897584 Device and method for detecting the coil temperature of a direct-current motor, especially a brushless direct-current motor |
| 01/30/1990 | CA1265196A1 Security and protection temperature measuring device, thermal protection device using said measuring device and electronic power controller using said thermal protection device |
| 01/17/1990 | EP0350507A1 Overcurrent detector |
| 12/27/1989 | EP0347703A1 Motor controller |
| 12/06/1989 | EP0345066A2 Electromagnetic contactor tandem control system for thermal protection of a bidirectional motor drive |
| 11/28/1989 | US4884162 Method and apparatus for preventing the overheat of a line feed motor for a printer |
| 10/11/1989 | EP0335904A1 Multi-phase electronic temperature controller. |
| 09/13/1989 | EP0332568A1 Operating method and control circuit to monitor the start of electric high-voltage motors using asynchronous starting |
| 09/06/1989 | CN1035392A Circuit breaker with over-temp. protection and low error calculator |
| 08/30/1989 | EP0329926A1 Overload protection for electric motors |
| 08/02/1989 | EP0326334A2 Circuit breaker with over temperature protection and low error 12t calculator |
| 06/13/1989 | US4839823 Automatic trouble analysis apparatus and method thereof |
| 06/13/1989 | CA1255775A1 Modular electronic temperature controller |
| 06/01/1989 | WO1989005060A1 Method of protecting a motor from overload |
| 04/04/1989 | US4819118 Electromagnetic contactor tandem control system for thermal protection of a bidirectional motor drive |
| 01/03/1989 | US4796142 Overload protection apparatus for emulating the response of a thermal overload |
| 11/15/1988 | CA1244929A1 Circuit breaker with digitized solid-state trip unit with inverse time tripping function |
| 11/02/1988 | EP0289268A2 Power status monitor for electronic system |
| 10/05/1988 | EP0284711A2 Device to measure the coil temperature of a direct-current motor without brushes |
| 10/04/1988 | US4775245 Multi-phase electronic temperature controller |