| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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| 05/27/1998 | EP0741927B1 Residual current safety switch |
| 05/20/1998 | CN1182299A Combination coaxial surge arrestor/power extractor |
| 05/19/1998 | US5754386 Trip device for an electric powered trip unit |
| 05/13/1998 | EP0841670A1 Current transformer, trip device and circuit breaker comprising such a transformer |
| 05/12/1998 | US5751530 High power DC blocking device for AC and fault current grounding |
| 05/12/1998 | US5751284 Current signal correction process and device |
| 05/06/1998 | EP0840413A1 Combination coaxial surge arrestor/power extractor |
| 05/05/1998 | CA2073385C Monitoring diagnosis device for electrical appliance |
| 04/29/1998 | EP0838687A1 Abnormality detection apparatus and abnormality detection method |
| 04/14/1998 | US5740027 Trip device for an electric powered trip unit |
| 04/09/1998 | WO1998015046A1 Electronic overcurrent release with a circuit to prepare a measuring signal for phase currents |
| 04/09/1998 | DE19641187A1 Schaltungsanordnung zur Energieversorgung von elektronischen Auslöseeinrichtungen Circuit arrangement for supplying power to electronic triggering devices |
| 04/09/1998 | DE19641185A1 Schaltungsanordnung zur Stromerfassung in Stromleitern zur Ansteuerung elektronisch steuerbarer Auslöseeinrichtungen Circuit arrangement for current detection in power conductors for controlling electronically controllable release mechanisms |
| 04/08/1998 | CN1178608A Delayed-action fault current of differential current circuit-breaker |
| 04/07/1998 | US5737167 Residual current safety switch |
| 04/02/1998 | WO1998013921A1 Circuit arrangement for detection of current in an electric conductor to control electronically controllable tripping devices |
| 04/02/1998 | WO1998013920A1 Circuit for detection of current in an electric conductor to control electronically controllable tripping devices |
| 04/02/1998 | WO1998013919A1 Adaptive ground and phase fault detection for a power distribution system |
| 04/02/1998 | WO1998013918A1 Circuit arrangement to provide electronic tripping devices with an electricity supply |
| 04/02/1998 | WO1998013917A1 Electronic tripping device power supply |
| 04/02/1998 | WO1998013916A1 Circuit arrangement to provide electronic tripping devices with electricity |
| 04/02/1998 | WO1998013696A1 Circuit arrangement for measuring current in an electric conductor to control electronically controllable tripping devices |
| 04/02/1998 | DE19641186A1 Schaltungsanordnung zur Strommessung eines Stromleiters zur Ansteuerung von elektrisch steuerbaren Auslöseeinrichtungen Circuitry for measuring current a conductor for the control of electrically controllable release mechanisms |
| 04/02/1998 | DE19641183A1 Schaltungsanordnung zur Stromerfassung eines Stromleiters zur Ansteuerung elektronisch steuerbarer Auslöseeinrichtungen Circuit arrangement for current detection of a conductor to control electronically controllable release mechanisms |
| 04/02/1998 | DE19637435A1 Elektronische Sicherung Electronic Security |
| 03/31/1998 | US5734575 Method and apparatus for detecting high-impedance faults in electrical power systems |
| 03/31/1998 | US5734207 Voltage polarity memory system and fuse-switch assembly usable therewith |
| 03/26/1998 | WO1998012784A1 Power circuit for an electronic trigger circuit |
| 03/26/1998 | DE19640345A1 Stromversorgungsschaltung für eine elektronische Auslöseschaltung Power supply circuit for an electronic trip circuit |
| 03/25/1998 | CN1177226A Sequence based network protector relay with forward overcurrent protection and anti-pumping feature |
| 03/24/1998 | US5731943 For power systems |
| 03/19/1998 | WO1998011642A1 Electronic fuse |
| 03/19/1998 | DE19636975A1 Earth leakage circuit-breaker e.g. for protection of electrical equipment |
| 03/17/1998 | US5729145 Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise |
| 03/16/1998 | CA2215562A1 Sequence based network protector relay with forward overcurrent protection and anti-pumping feature |
| 03/10/1998 | US5726847 Method of generating a protection-triggering signal |
| 03/10/1998 | US5726577 Apparatus for detecting and responding to series arcs in AC electrical systems |
| 03/04/1998 | EP0827250A1 Electronic trip device comprising a thermal memory |
| 03/04/1998 | EP0827170A2 Electromagnetic drive apparatus |
| 03/03/1998 | US5724247 Method of generating a signal indicating the direction of a short-circuit |
| 02/25/1998 | EP0824776A1 Method and apparatus for detecting arcing in ac power systems by monitoring high frequency noise |
| 02/18/1998 | CN1173722A Electromagnetic drive apparatus |
| 02/11/1998 | CN1173035A Earth leakage breaker |
| 02/03/1998 | US5715129 Electronic overload relay having intrinsic power supply operable from power applied to contactor coil |
| 02/03/1998 | US5715125 Intelligent ground fault circuit interrupter |
| 01/28/1998 | EP0820651A1 Arcing fault detection system |
| 01/28/1998 | CN1171714A System of communication output function status indications between two or more power system protective relays |
| 01/27/1998 | US5712796 Method for evaluating the faulted sections and states in a power transmission line |
| 01/15/1998 | DE19729168A1 Fault current circuit breaker e.g. for interrupting heavy earth (return) current and leakage currents |
| 01/14/1998 | EP0818076A1 Circuit interrupter including an electric arc monitoring circuit |
| 01/14/1998 | EP0818075A1 Accidental arc detector for electric power distribution switching equipments |
| 01/14/1998 | EP0818074A1 Electric arc detector sensor circuit |
| 01/07/1998 | EP0815629A1 Delayed-action fault current of differential current circuit-breaker |
| 01/06/1998 | US5706159 Circuit interrupter including an electric arc monitoring circuit |
| 01/06/1998 | US5706154 Residential circuit breaker with arcing fault detection |
| 12/30/1997 | US5703745 System for detection of transients from a coupling capacitor voltage transformer used in a protective relay |
| 12/29/1997 | EP0814555A1 Differential protection device |
| 12/23/1997 | US5701080 Method of improving fault current measurement accuracy on electronic reclosure control |
| 12/17/1997 | EP0813282A1 Ground fault detection apparatus for a device connected to a power distribution or transmission network, and corresponding method |
| 12/17/1997 | EP0813281A2 Apparatus for envelope detection of low current arcs |
| 12/17/1997 | CN1167994A Protective relay having out-of-step logic capability |
| 12/03/1997 | EP0810714A2 System of communicating output function status indications between two or more power system protective relays |
| 12/03/1997 | EP0809874A1 Energy validation arrangement for a self-powered circuit interrupter |
| 12/03/1997 | EP0809808A1 Method of determining an earth-fault current |
| 12/03/1997 | CN1166709A Overcurrent trip device |
| 11/26/1997 | EP0808462A1 Measuring system for enclosed high-voltage switchgear |
| 11/25/1997 | US5691869 Low cost apparatus for detecting arcing faults and circuit breaker incorporating same |
| 11/19/1997 | EP0679295A4 Load analysis system for fault detection. |
| 11/18/1997 | CA2125227C Apparatus and method for protecting induction motors from momentary power loss |
| 11/13/1997 | WO1997042512A1 Abnormality detection apparatus and abnormality detection method |
| 11/12/1997 | WO1997046781A1 Window opening and closing apparatus |
| 11/12/1997 | EP0806826A2 Decoupling element for overvoltage protection circuit |
| 11/05/1997 | CN1164139A Electronic trip device comprising power supply device |
| 10/30/1997 | DE19712548A1 Overcurrent trip/release device for protection of electrical circuits |
| 10/30/1997 | DE19615441C1 Operating electric motor drive for operating windows, flaps and doors |
| 10/28/1997 | US5682287 Digital circuit interrupter shunt trip accessory module |
| 10/28/1997 | US5682101 Arcing fault detection system |
| 10/23/1997 | DE19614900A1 Procedure for determining winding temperature of electrical machine |
| 10/22/1997 | EP0802602A2 Apparatus for detecting and responding to series arcs in AC electrical systems |
| 10/07/1997 | US5675497 Method for monitoring an electric motor and detecting a departure from normal operation |
| 10/02/1997 | WO1997036185A1 Process for producing fault classification signals |
| 09/25/1997 | WO1997018611A3 Energy validation arrangement for a self-powered circuit interrupter |
| 09/25/1997 | DE19612992A1 Fault detection on section of power line between power switches |
| 09/24/1997 | EP0797282A2 Ground fault circuit interrupter with energy storage circuit |
| 09/16/1997 | US5668866 Apparatus for protecting a subscriber line interface circuit against overvoltages |
| 09/16/1997 | US5668692 Self-powered circuit interruption arrangement |
| 09/02/1997 | US5663620 Apparatus for controlling driving of power window system |
| 08/28/1997 | DE19633856C1 Indicating current converter saturation for measuring current in distribution network |
| 08/27/1997 | EP0791999A1 Electronic trip device with a power supply |
| 08/21/1997 | WO1997030501A1 Arcing fault detection system |
| 08/19/1997 | US5659453 Arc burst pattern analysis fault detection system |
| 08/14/1997 | DE19704166A1 Multiple load overcurrent protection device for time-varying load circuits in motor vehicle |
| 08/14/1997 | DE19613012C1 Generation of fault classification signals by trained neural net |
| 08/12/1997 | US5657244 Distinguishing power line arcing from RF emissions |
| 08/12/1997 | US5656931 Fault current sensor device with radio transceiver |
| 07/24/1997 | WO1997026698A1 Connector, in particular a plug-in connector for tt and tn networks |
| 07/24/1997 | DE19601884A1 Verbindungseinrichtung, insbesondere Steckvorrichtung für TT- und TN-Netze Connecting means, in particular plug-in device for TT and TN systems |
| 07/24/1997 | CA2243865A1 Connecting device in particular a plug-in device for tt and tn systems |
| 07/22/1997 | US5650936 Power monitor apparatus and method with object oriented structure |
| 07/22/1997 | US5650907 Circuit breaker |