| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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| 03/30/2000 | WO2000017981A1 Power supply device for protective devices for switchgear |
| 03/29/2000 | EP0989653A2 Circuit arrangement for providing auxiliary energy for operating a control unit |
| 03/29/2000 | EP0988687A1 A method for communication between a low potential level and a valve located on high voltage potential in a high voltage converter station as well as a device for such a communication |
| 03/23/2000 | DE19845779A1 Power supply for protective device in medium voltage switch gear |
| 03/22/2000 | EP0987805A1 Earth fault protection device with bipolar signal-processing circuit |
| 03/22/2000 | EP0961959A4 Voltage regulator circuit |
| 03/21/2000 | US6040967 Reset lockout for circuit interrupting device |
| 03/16/2000 | WO2000014843A1 Drive device and method for moving a vehicle part |
| 03/16/2000 | DE19840164A1 Antriebsvorrichtung und Verfahren zum Verstellen eines Fahrzeugteils Drive device and method for adjusting a vehicle part |
| 03/14/2000 | US6038516 Method for graphically displaying a menu for selection and viewing of the load related parameters of a load connected to an AC load control device |
| 03/14/2000 | US6038118 Lightning protector system |
| 03/09/2000 | WO2000013281A1 Protection device for low voltage networks |
| 03/08/2000 | EP0983626A1 Remote-control monitoring of an electronic overcurrent trip |
| 03/08/2000 | CN1246620A Current transformer saturation crrection using analog nerval net |
| 03/08/2000 | CN1050237C Fault current protecting switch with energy storing circuit |
| 03/07/2000 | US6034858 Current transformer, trip device and circuit breaker comprising such a transformer |
| 03/04/2000 | CA2281406A1 Solid state protector for high frequency applications |
| 03/02/2000 | WO2000011696A1 Circuit interrupting system with independent trip and reset lockout |
| 03/02/2000 | DE19839616A1 Schutzeinrichtung für Niederspannungsnetze Protection device for low-voltage networks |
| 03/02/2000 | CA2341552A1 Circuit interrupting system with independent trip and reset lockout |
| 03/01/2000 | CN1246207A Gas-filled surge protector with external short-circuiting device |
| 03/01/2000 | CN1050001C Current signal correction process and device |
| 02/29/2000 | US6031699 Arc fault detector apparatus, means and system |
| 02/24/2000 | WO2000010238A1 Earth leakage protective relay |
| 02/23/2000 | EP0981193A2 Apparatus sensitive to arc amplitude for envelope detection of low current arcs |
| 02/22/2000 | US6028754 System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients |
| 02/17/2000 | WO2000008663A1 Arc fault detection system |
| 02/17/2000 | DE19836828A1 Unterspannungsauslöser Undervoltage release |
| 02/16/2000 | EP0980129A2 Current transformer saturation correction using artificial neural networks |
| 02/16/2000 | EP0980128A2 Undervoltage release device |
| 02/16/2000 | CN1244964A System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients |
| 02/15/2000 | US6025980 Earth leakage protective relay |
| 02/10/2000 | DE19829802A1 Elektromagnetisches Relais Electromagnetic relay |
| 02/09/2000 | EP0978918A2 Circuit interrupter with arcing fault protection and PCT (positive temperature coefficient resistivity) elements for short circuit and overload protection |
| 02/02/2000 | EP0976189A1 Method for determining the location of a partial discharge |
| 01/27/2000 | WO2000004619A1 Arcing fault detection system |
| 01/26/2000 | EP0974995A2 Miniaturized double pole circuit breaker with arc fault and ground fault protection |
| 01/26/2000 | CN1242635A Gas-filled surge protector with external short-circuiting device |
| 01/26/2000 | CN1242634A Gas-filled surge protector with external short-circuiting device |
| 01/25/2000 | US6018451 Circuit breaker trip unit and method for real-time fault indication |
| 01/25/2000 | US6018449 Method for automated reconfiguration of a distribution system using distributed control logic and communications |
| 01/13/2000 | WO2000002298A2 Electromagnetic relay |
| 01/13/2000 | DE19832591A1 Leistungsschalter mit einer Einrichtung zur Verarbeitung eines Stromsignales Circuit-breaker with means for processing a current signal |
| 01/13/2000 | DE19830643A1 Arcing protection arrangement protecting low voltage networks against arcing enables detection of arcing and initiates measures to provide warning or switch off appropriate circuits |
| 01/12/2000 | EP0971470A2 Circuit breaker with a device for processing a current signal |
| 01/11/2000 | US6014297 Apparatus for detecting arcing faults and ground faults in multiwire branch electric power circuits |
| 01/10/2000 | CA2277589A1 Arcing fault and ground fault interrupting device for branch circuits and extensions |
| 01/06/2000 | WO2000001049A1 Method for operating an electronic overcurrent trip for a power circuit breaker |
| 01/05/2000 | EP0968871A2 Power-feed control apparatus provided in a vehicle |
| 01/05/2000 | DE19829775A1 Over-voltage and over-current protection arrangement has series and parallel components with melting elements, bypass and quenching circuits |
| 01/04/2000 | US6011680 Connector, in particular a plug-in connector for TT and TN networks |
| 01/04/2000 | US6011416 Switch circuit having excess-current detection function |
| 12/30/1999 | DE19830016A1 Electronic over-current release operating method for power switch |
| 12/29/1999 | EP0966781A1 Circuit interrupter having improved current sensing apparatus |
| 12/29/1999 | EP0966749A1 Circuit breaker having hall effect sensors |
| 12/29/1999 | CN1047887C Device for differentially protecting power transformer |
| 12/28/1999 | US6008973 Circuit breaker including interface to convert a rectified signal to a sinusoidal signal |
| 12/28/1999 | CA2141263C Electromagnetic and radio frequency interference suppression for ground fault circuit interrupters |
| 12/22/1999 | EP0966085A1 Control device for the cut-off of a motorised shading device |
| 12/21/1999 | US6005760 Combination current sensor and relay |
| 12/21/1999 | US6005759 Method and system for monitoring and controlling an electrical distribution network |
| 12/21/1999 | US6005393 Method of determining an earth-fault current |
| 12/14/1999 | US6002565 Fault current safety switch |
| 12/14/1999 | US6002561 Arcing fault detection module |
| 12/14/1999 | US6002260 Fault sensor suitable for use in heterogenous power distribution systems |
| 12/09/1999 | WO1999063635A1 Redundant communications in a protective relay |
| 12/09/1999 | DE19825383A1 Elektronische Auslöseeinrichtung für einen Leistungsschalter mit einem Rogowski-Stromwandler The electronic trip device for a circuit breaker with a Rogowski current transformer |
| 12/08/1999 | EP0963043A2 Circuit and method for protecting from overcurrent conditions and detecting an open electrical load |
| 12/08/1999 | EP0963024A1 Protective switching device |
| 12/08/1999 | EP0963023A2 Arc fault detector comparing integrated interval to interval filtered load current and circuit breaker incorporating same |
| 12/08/1999 | EP0962037A1 Gas-filled surge protector with external short-circuiting device |
| 12/08/1999 | EP0961959A1 Voltage regulator circuit |
| 12/07/1999 | US5999385 Ground fault circuit breaker |
| 12/07/1999 | US5999384 Circuit interrupter with arcing fault protection and PTC (positive temperature coefficient resistivity) elements for short circuit and overload protection |
| 12/02/1999 | WO1999062157A1 Electronic tripping device for a circuit breaker with a rogowski current transformer |
| 12/02/1999 | CA2265204A1 Combination ground fault and arc fault circuit interrupter |
| 11/25/1999 | WO1999060681A1 Power circuit breaker |
| 11/24/1999 | EP0958642A1 Circuitry for operating an electronic tripping device in a circuit breaker |
| 11/17/1999 | EP0957558A2 Circuit interrupter with test actuator for ground fault and arc fault test mechanisms |
| 11/16/1999 | US5987393 Method of configuring a microprocessor-based relay for use in overcurrent protection |
| 11/16/1999 | US5986860 Zone arc fault detection |
| 11/12/1999 | CA2271896A1 Circuit interrupter with test actuator for ground fault and arc fault test mechanisms |
| 11/11/1999 | WO1999057568A1 Method and circuit for measuring a current |
| 11/11/1999 | DE19822127A1 Verfahren und Schaltungsanordnung zur Stromerfassung Method and circuit for current detection |
| 11/09/1999 | US5982595 Redundant communications in a protective relay |
| 11/09/1999 | US5982593 Circuit interrupter with test actuator for ground fault and arc fault test mechanisms |
| 11/09/1999 | US5982136 Circuit for sensing current in power trains for motor control |
| 11/03/1999 | EP0954080A1 Device for detecting the current level for ac overcurrent protection |
| 11/03/1999 | EP0954003A2 Circuit breaker with common test button for ground fault and arc fault circuit |
| 11/03/1999 | EP0953222A1 System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients |
| 11/02/1999 | US5977758 Overcurrent protection circuit and overcurrent protection method of the circuit |
| 10/28/1999 | WO1999054976A1 Method for adapting a protective relay to the mains frequency, and a protective relay |
| 10/28/1999 | DE19819149A1 Circuit breaker with current supply for electronic overcurrent release |
| 10/26/1999 | US5974361 Waveform reconstruction from distorted (saturated) currents |
| 10/26/1999 | US5973902 Modified surge protector |
| 10/26/1999 | US5973500 Apparatus for detecting insulation defects in devices connected into power distribution networks |
| 10/20/1999 | CN2344871Y Lightning-protection energy-saving pulse relay |
| 10/19/1999 | US5969956 Method and a device for communication in a high voltage converter station |
| 10/19/1999 | US5969920 Test circuit for verifying operation of an arc fault detector |
| 10/19/1999 | CA2206562C System of communicating output function status indications between two or more power system protective relays |