| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
|---|
| 03/02/1994 | EP0584155A1 A motor reverse system. |
| 03/01/1994 | US5291366 Surge voltage arrester |
| 02/17/1994 | WO1994003820A1 Electric arc detector |
| 02/16/1994 | EP0582966A1 Apparatus for controlling driving of power window system |
| 02/09/1994 | EP0581993A1 Circuit arrangement for the control of a load and the detection of line interruption |
| 02/08/1994 | US5285452 Microcomputer power failure control circuit |
| 02/01/1994 | US5283708 Overload current protection apparatus |
| 01/26/1994 | EP0580285A2 Auto-reclosers |
| 01/20/1994 | WO1994001910A1 High impedance fault detector |
| 01/20/1994 | CA2139755A1 High impedance fault detector |
| 01/18/1994 | US5280404 Arc detection system |
| 01/06/1994 | WO1994000900A1 Logic level current and voltage independent restraint system |
| 01/06/1994 | WO1994000862A1 Trip energy monitor |
| 01/06/1994 | CA2115569A1 Logic level current and voltage independent restraint system |
| 01/06/1994 | CA2115358A1 Trip energy monitor |
| 01/05/1994 | EP0577339A1 Overcurrent protection device |
| 01/05/1994 | EP0576772A1 Programmable-output voltage regulator |
| 01/04/1994 | US5276416 Circuit breaker |
| 12/29/1993 | EP0575932A1 Detecting device for fault arcs, in particular for their detection on bus bar arrangements in low-voltage switch gears |
| 12/22/1993 | EP0513319A4 Display for a circuit breaker trip unit |
| 12/08/1993 | EP0572767A2 Monitoring diagnostic apparatus using neural network |
| 11/24/1993 | EP0570603A1 Fail safe differential current circuit-breaker |
| 11/18/1993 | EP0570310A1 Signal generator for the remote detection of functional failure of overvoltage protection devices mounted on electrical distribution lines |
| 11/18/1993 | EP0570304A1 Electronic circuit breaker with correcting device |
| 11/18/1993 | EP0570206A2 Arc detection system |
| 11/16/1993 | US5262679 Polarizing potential transfer switch circuit for use with power transmission lines |
| 11/13/1993 | CA2095994A1 Electronic trip device comprising a correcting device |
| 11/09/1993 | CA1324207C Apparatus for detecting unsymmetrical bipolar waveforms |
| 11/03/1993 | EP0567904A1 Parameter monitoring equipment for electrical power transformer center |
| 10/28/1993 | WO1993021573A1 Voltage reduction circuit |
| 10/26/1993 | US5257156 Turn-on transient overcurrent response suppressor |
| 10/05/1993 | CA1322778C Monitoring system |
| 09/22/1993 | EP0561717A1 Measuring combination with current sensor and power supply transformer |
| 09/22/1993 | EP0560973A1 Communication interface for bus connected circuit breakers |
| 09/21/1993 | US5247419 Low voltage switchgear |
| 09/14/1993 | US5245498 Downed conductor automatic detecting device |
| 09/14/1993 | US5245496 Self-programming non-invasive motor overload prevention system |
| 09/08/1993 | EP0559580A1 Connecting block for middle voltage relays with current sensors |
| 09/08/1993 | EP0559526A1 Device for monitoring the phases of a three-phase, converter-controlled motor |
| 08/31/1993 | US5241443 Transformer fault protection device |
| 08/19/1993 | WO1993016517A1 Method and device for preventing overstabilization of longitudinal differential protection in case of internal fault |
| 08/11/1993 | EP0554484A1 Three-phase power supply |
| 08/10/1993 | US5235505 Overcurrent detector |
| 08/03/1993 | US5233645 Automatic power breaking circuits for communication equipments |
| 07/20/1993 | US5229909 Surge suppression and fault containment circuit and packaging therefor |
| 07/20/1993 | US5229707 Apparatus and method for eliminating false current limit triggering in a grounded source-emitter power switching circuit |
| 07/08/1993 | WO1993013581A1 Reconstruction of saturated current transformer signals |
| 07/08/1993 | CA2126867A1 Reconstruction of saturated current transformer signals |
| 07/07/1993 | CN1021530C Solid-state trip unit for dc circuit breakers |
| 06/29/1993 | US5224006 Electronic circuit breaker with protection against sputtering arc faults and ground faults |
| 06/29/1993 | US5223795 Method and apparatus for detecting arcing in electrical connections by monitoring high frequency noise |
| 06/22/1993 | CA1319413C Molded case circuit breaker actuator-accessory module |
| 06/15/1993 | US5220495 Arrangement and method for accurately sensing voltage of a high-impedance source and supplying power to a variable burden |
| 06/09/1993 | EP0545038A1 Surge arrester |
| 06/09/1993 | EP0484341A4 A power supply |
| 06/09/1993 | CN1021135C Tension measuring circuit |
| 05/25/1993 | US5214359 Winch with electronic current limiter |
| 05/19/1993 | DE4220571A1 Fault current circuit breaker - has trip current level characteristic evaluated to identify optimum response period. |
| 05/06/1993 | DE4136240A1 Overcurrent protection circuit for DC supply network - uses electromagnetically-operated overcurrent switch for galvanic separation of current consumer circuit, actuated w.r.t. monitored parameters |
| 05/06/1993 | DE4136231A1 Arc-detecting protection device for electrical machine with slip ring - causes thyristor-controlled power supply to be switched off by photodiode in close proximity to commutator |
| 05/06/1993 | DE4136102A1 Sensor for detecting heating in winding of commutator motor - uses resistance of interference suppressor chokes as source of heat conducted to sensor within ceramic rod |
| 05/04/1993 | US5208545 Apparatus and method for eliminating phase skew in a multi-channel data acquisition system |
| 05/04/1993 | US5208542 Timing window arc detection |
| 04/27/1993 | US5206596 Arc detector transducer using an e and b field sensor |
| 04/15/1993 | WO1993007597A1 Communication interface for bus connected circuit breakers |
| 04/15/1993 | DE4133425A1 Parallel connected AC mains load monitoring and controlling - having mains frequency driven counters controlling individual load switches in timed sequence enabling central control and fault location |
| 04/14/1993 | EP0537066A1 Method for the selective detection of resistive defects in power-distribution networks and device for carrying out this method |
| 04/08/1993 | DE4142760C1 Monitor for current circuit of appliance, e.g. separate lamps of motor vehicle - uses differential amplifier as comparator with inputs across fuse and output supplying warning appts. if heat exceeds threshold value |
| 04/07/1993 | EP0536058A1 Electronic trip device comprising local detected fault type indicating means |
| 03/31/1993 | EP0534868A1 Electronic trip device comprising communication means |
| 03/30/1993 | CA1315383C Control circuit with validity-determining arrangement |
| 03/27/1993 | CA2082433A1 Electronic trip device comprising communication means |
| 03/09/1993 | CA1314321C Solid-state trip device comprising an instantaneous tripping circuit independent from the supply voltage |
| 02/23/1993 | US5189587 Dual shunt current regulator |
| 02/23/1993 | US5189350 Monitoring the instantaneous operating capacity of rated electric motor |
| 02/18/1993 | WO1993003530A1 Process and arrangement for recognizing defects in power converters |
| 02/18/1993 | CA2114543A1 Process and arrangement for recognizing defects in power converters |
| 02/16/1993 | US5187631 For controlling the power supply of an electrical load |
| 02/09/1993 | US5185687 Chaos sensing arc detection |
| 02/09/1993 | US5185686 Direction sensing arc detection |
| 02/09/1993 | US5185685 Field sensing arc detection |
| 02/09/1993 | US5185684 Frequency selective arc detection |
| 01/20/1993 | CN1068220A Antijamming circuit for overvoltage protection of electric applicance |
| 01/19/1993 | US5181026 Power transmission line monitoring system |
| 01/12/1993 | US5179495 Solid state overload relay |
| 01/12/1993 | CA1312653C Apparatus and method for reducing transient exponential noise in a sinusoidal signal |
| 01/07/1993 | DE4119941A1 Protecting drive motor of electrical power tool - controlling zero voltage releaser and excess current releaser by drive current |
| 12/30/1992 | EP0507782A4 Electric arc and radio frequency spectrum detection |
| 12/22/1992 | CA1311829C Phase loss detection circuit including transient protection |
| 12/16/1992 | EP0517888A1 Addressable relay module for circuit breakers |
| 12/08/1992 | US5170310 Fail-resistant solid state interruption system |
| 12/08/1992 | US5170309 Four-pole circuit breaker |
| 12/01/1992 | CA1311044C High resistance ground fault protection |
| 11/26/1992 | WO1992020891A1 A motor reverse system |
| 11/19/1992 | EP0514064A2 Apparatus and method for eliminating false current limit triggering in a grounded source/emitter power switching circuit |
| 11/19/1992 | EP0513344A1 Fail-resistant solid state interruption system |
| 11/19/1992 | EP0513319A1 Display for a circuit breaker trip unit |
| 11/17/1992 | US5164875 Addressable relay module for circuit breakers |
| 11/10/1992 | US5162664 Communications arrangement for an electronic circuit breaker trip system |
| 11/10/1992 | CA1310100C Solid-state trip device of a molded case circuit breaker |