Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
08/2000
08/01/2000US6097192 Method for initializing short time and groundfault protection heat index accumulators in a trip unit
06/2000
06/20/2000US6078489 Method for performing instantaneous protection in a trip unit
05/2000
05/10/2000EP0999630A1 Device for the thermal overload protection of an electric motor and related method
05/10/2000EP0999629A1 Device for the thermal overload protection of an electric motor and related method
04/2000
04/25/2000US6055145 Overcurrent protection device with visual indicators for trip and programming functions
03/2000
03/23/2000WO2000016476A1 System and method for output power compensation for actual device temperature
03/22/2000EP0961959A4 Voltage regulator circuit
03/16/2000DE19841422A1 Thermic stress supervision for final power stage
03/14/2000US6038115 Socket-outlet
03/02/2000WO2000011773A1 Method for performing instantaneous protection in a trip unit
02/2000
02/10/2000DE19835485A1 Tripping safety mechanism for electrical conductors in motor vehicle
01/2000
01/12/2000CN1241320A Protecting method for inrush current preventing resistor
12/1999
12/08/1999EP0961959A1 Voltage regulator circuit
11/1999
11/25/1999WO1999060682A1 Method and device for determining state variables
11/25/1999DE19922564A1 Thermoelectric sensor for electrical protection device
11/10/1999CN1234640A Electronic device for stimulating temp. rise in electric motor
11/04/1999DE19819166A1 Thermal response detection method for switched electrical load
10/1999
10/06/1999EP0948123A1 Protecting method for inrush current preventing resistor
10/06/1999EP0875082B1 Socket
09/1999
09/29/1999EP0839401B1 Electrical apparatus
09/28/1999US5959817 Control device for operating a wiper motor
09/28/1999US5959816 Voltage regulator circuit
09/21/1999US5955909 Device for monitoring chip temperature
09/09/1999DE19909052A1 Protection initialization method for electronic release device
09/01/1999EP0938766A1 Control system using an electric motor
06/1999
06/30/1999EP0926795A1 Electronic control circuit for a relay, especially for supply control of a heatable element of a windshield or rear window of an automobile
06/30/1999EP0926794A1 Electronic device for modelling the temperature of a motor
06/09/1999EP0921618A2 Circuit for controlling an electrical drive unit
05/1999
05/12/1999EP0915547A2 Electronic overload relay
04/1999
04/27/1999US5898557 Switching apparatus
04/22/1999DE19844426A1 Safety DC voltage source for electric tool
03/1999
03/25/1999WO1999014835A1 Control system using an electric motor
03/25/1999DE19816837A1 Electric motor drive
02/1999
02/03/1999CN1207211A Socket
01/1999
01/05/1999CA2149102C Apparatus and method for thermal protection of electric motors
12/1998
12/29/1998US5854731 Electrical apparatus
12/24/1998DE19725267A1 Verfahren zum Schutz von Gleichstrommotoren vor thermischer Überlastung A method of protecting against thermal overload DC motors
12/23/1998WO1998058433A1 Method for protecting direct current motors from thermal overload
12/15/1998US5850330 Electronic trip device that detects an imminent drop of the power system voltage and comprises a numerical processing circuit and a thermal memory
11/1998
11/17/1998US5838591 Temperature control apparatus for motor and information storing medium used therefor
11/04/1998EP0875082A1 Socket
10/1998
10/07/1998EP0869597A1 Electrical overload protection device with predetermined cold and hot tripping items
09/1998
09/29/1998US5814954 Method of and an apparatus for protecting a regenerative resistor in an inverter for driving a servomotor
09/23/1998EP0866485A1 Protection device for an electric motor with thermal fault signalling before activation
09/01/1998US5801503 Temperature-compensating overcurrent detection circuit for DC motor
08/1998
08/27/1998WO1998037471A1 Voltage regulator circuit
08/27/1998CA2281675A1 Voltage regulator circuit
08/19/1998CN1190821A Two-polar time constant thermal protection for electric power switch unit
07/1998
07/02/1998WO1998028835A1 Protecting method for inrush current preventing resistor
06/1998
06/30/1998US5774319 Energy validation arrangement for a self-powered circuit interrupter
06/10/1998EP0847122A2 Two time constant thermal protection in electrical switching apparatus
06/09/1998US5762384 Vehicle door lock with a centrally-operated locking unit
06/02/1998US5761018 Motor starter for an electrical circuit
05/1998
05/12/1998US5751234 Sure chip
05/06/1998EP0839401A1 Electrical apparatus
04/1998
04/22/1998EP0837536A2 Drive assembly for axially reciprocating masses
04/09/1998DE19640361A1 Chip temperature monitor preferably for magnetic resonance tomograph
04/08/1998EP0834976A2 Circuit with electronic fuse
03/1998
03/17/1998US5729062 Active plug-in circuit
03/11/1998EP0828330A2 Actuator with electric motor protected against overload
03/04/1998EP0827250A1 Electronic trip device comprising a thermal memory
01/1998
01/13/1998US5708336 Thermal control system for a motor
12/1997
12/03/1997EP0809874A1 Energy validation arrangement for a self-powered circuit interrupter
11/1997
11/04/1997US5684342 Starter with overload relay having power off cooling for multiple class loads
10/1997
10/23/1997DE19614900A1 Procedure for determining winding temperature of electrical machine
10/08/1997EP0694226B1 Method of monitoring a temperature rise of a squirrel cage induction motor
09/1997
09/25/1997WO1997018611A3 Energy validation arrangement for a self-powered circuit interrupter
07/1997
07/24/1997WO1997026687A1 Socket
07/24/1997DE19601883A1 Steckdose Power Point
07/24/1997CA2243466A1 Plug socket
07/01/1997US5644510 Apparatus and method for motor overload protection using an elapsed-time signal for enabling computation of motor temperature data independently of temporary power interruption
05/1997
05/22/1997WO1997018611A2 Energy validation arrangement for a self-powered circuit interrupter
05/22/1997CA2210399A1 Energy validation arrangement for a self-powered circuit interrupter
05/14/1997EP0773623A1 Method and device for protecting regenerative resistor of servo motor for driving inverter
05/06/1997US5627716 Overcurrent protection device
04/1997
04/30/1997DE19539753A1 Motor vehicle central locking door lock
04/01/1997US5617078 Electronic trip device comprising a storage device
03/1997
03/18/1997US5612604 Method of monitoring a temperature rise of a squirrel cage induction motor
03/12/1997EP0572588B1 Device for regulating a generator
03/11/1997US5610453 Pulsewidth modulation (PWM) frequency slider
02/1997
02/06/1997WO1997004511A1 Electrical apparatus
02/04/1997US5600575 Drive protection monitor for motor and amplifier
11/1996
11/26/1996US5579194 Motor starter with dual-slope integrator
10/1996
10/31/1996WO1996034450A1 Method and device for protecting regenerating resistor of servo motor for driving inverter
09/1996
09/26/1996DE19510970A1 Temp. monitoring device for transformer
09/03/1996CA2032534C Motor protection apparatus
08/1996
08/21/1996EP0727858A2 Electronic spring charging motor controller
08/20/1996US5548202 Regulatable alternating device with means for determining final temperature
08/14/1996EP0726632A1 Lift truck with internal temperature monitor and system
08/13/1996US5546262 Electronic protection device
07/1996
07/23/1996US5539601 Apparatus and method for thermal protection of electric motors
06/1996
06/11/1996US5525985 Sure chip
06/11/1996US5525881 Method and apparatus for the thermal control of an electric motor in a vehicle, and their application to a power assisted steering system
04/1996
04/23/1996US5510687 Electric motor controller with temperature protection
04/10/1996CN1120187A Multifunction efficient energy-saving device
04/09/1996US5506485 Digital modular microprocessor based electrical contactor system
02/1996
02/20/1996US5493468 Electrical contactor system with transfer of scaled overload information
01/1996
01/31/1996EP0694226A1 Method of monitoring a temperature rise of a squirrel cage induction motor
01/09/1996US5483139 Motor start, reverse and protection system without a starting capacitor
12/1995
12/05/1995CA2039716C Processor controlled circuit breaker trip system having an intelligent rating plug
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