| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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| 10/07/1999 | WO1999050865A1 High voltage device, especially a surge diverter |
| 10/07/1999 | DE19831769C1 Arrangement for monitoring a current network, esp. a three-phase current network with earth and neutral lines |
| 10/05/1999 | US5963406 Arc fault detector with circuit interrupter |
| 10/05/1999 | US5963405 Low cost apparatus for detecting arcing faults and circuit breaker incorporating same |
| 09/29/1999 | EP0945960A2 Power supply apparatus and method, and fabrication apparatus |
| 09/29/1999 | EP0945949A2 Plug-in multifunction tester for ac electrical distribution system |
| 09/29/1999 | EP0945948A2 Test circuit for verifying operation of an arc fault detector |
| 09/28/1999 | US5959819 Reliable fault tolerant power supply for a protective relay |
| 09/28/1999 | US5959818 Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer |
| 09/28/1999 | US5959816 Voltage regulator circuit |
| 09/28/1999 | US5959537 Variable trip fault indicator |
| 09/22/1999 | EP0944149A2 Reliable fault tolerant power supply for a protective relay |
| 09/16/1999 | DE19910360A1 Intelligent automated line circuit-breaker for overcurrent protection |
| 09/14/1999 | US5953198 Electromagnetic drive apparatus |
| 09/01/1999 | EP0939472A2 Arc fault detector with protection against nuisance trips and circuit breaker incorporating same |
| 08/31/1999 | US5946179 Electronically controlled circuit breaker with integrated latch tripping |
| 08/31/1999 | US5946173 Ground fault circuit Interrupter with enhanced range |
| 08/26/1999 | WO1999043066A1 Zone arc fault detection |
| 08/26/1999 | WO1999043065A1 Electrical fault detection system |
| 08/26/1999 | WO1999042691A1 Jam detector for switch component |
| 08/26/1999 | CA2263009A1 Arc fault detector with protection against nuisance trips and circuit breaker incorporating same |
| 08/24/1999 | US5943205 Driver and overload protection circuit |
| 08/24/1999 | US5943204 Electronic trip unit with dedicated override current sensor |
| 08/24/1999 | CA2093420C Electric arc and radio frequency spectrum detection |
| 08/18/1999 | EP0936717A2 Electrical switching apparatus employing interlocks for first and second trip functions |
| 08/18/1999 | EP0935834A2 System and related methods for detecting and measuring the operational parameters of a garage door |
| 08/17/1999 | US5940547 Optical fiber accidental arc detector for an electric power distribution switching device |
| 08/17/1999 | US5940256 Circuit breaker responsive to repeated in-rush currents produced by a sputtering arc fault |
| 08/10/1999 | US5936495 For use in a power distribution system |
| 08/05/1999 | WO1999039417A1 Protective circuit breaking circuitry |
| 08/03/1999 | US5933308 Arcing fault protection system for a switchgear enclosure |
| 08/03/1999 | US5933306 Circuit breaker with ground fault detection module |
| 08/03/1999 | US5933305 For an ac electrical system |
| 08/03/1999 | CA2228724A1 Method and apparatus for detecting arcs and controlling supply of electrical power |
| 07/27/1999 | US5929580 Internal entrapment system |
| 07/22/1999 | WO1999037006A1 Circuit interrupter having improved current sensing apparatus |
| 07/22/1999 | WO1999036928A1 Circuit breaker having hall effect sensors |
| 07/22/1999 | DE19802188A1 Voltage converter for measurement function in low voltage (LV) power switch |
| 07/20/1999 | US5926355 Electrical switching apparatus employing battery-powered indicator |
| 07/20/1999 | US5926010 Overcurrent breaking circuit |
| 07/20/1999 | US5925888 Optocoupler input expansion circuit |
| 07/14/1999 | EP0929139A2 Electronic trip unit with dedicated override current sensor |
| 07/14/1999 | EP0928511A1 Circuit arrangement for detection of current in an electric conductor to control electronically controllable tripping devices |
| 07/14/1999 | EP0928510A1 Circuit for detection of current in an electric conductor to control electronically controllable tripping devices |
| 07/14/1999 | EP0928509A1 Circuit arrangement to provide electronic tripping devices with an electricity supply |
| 07/13/1999 | US5923514 Electronic trip circuit breaker with CMR current sensor |
| 07/13/1999 | CA2122259C Dual voltage power supply |
| 07/12/1999 | CA2258179A1 Electronic trip unit with dedicated override current sensor |
| 07/06/1999 | US5920452 Circuit and method for protecting from overcurrent conditions and detecting an open electrical load |
| 07/06/1999 | US5920451 Earth leakage circuit breaker assembly |
| 06/30/1999 | EP0666957B1 Electromotive drive |
| 06/23/1999 | EP0924833A1 Differential current protection device with a transducer circuit |
| 06/17/1999 | WO1999030400A1 Fault sensing wire and alarm apparatus |
| 06/17/1999 | CA2313092A1 Fault sensing wire and alarm apparatus |
| 06/16/1999 | EP0875090B1 Connector, in particular a plug-in connector for tt and tn networks |
| 06/16/1999 | EP0815629B1 Delayed-action fault current of differential current circuit-breaker |
| 06/08/1999 | US5910872 Method of discriminating between an internal arc and an interruption arc detected inside a metal-clad electrical installation |
| 06/08/1999 | CA2129826C Method and device for preventing overstabilization of longitudinal differential protection in case of internal fault |
| 06/02/1999 | EP0920046A2 Circuit breaker with sense bar to sense current from voltage drop across bimetal |
| 06/02/1999 | DE19754771A1 Electronic overcurrent trip with microprocessor device |
| 05/27/1999 | WO1999026328A1 Arcing fault protection system for a switchgear enclosure |
| 05/26/1999 | EP0917753A1 A device for supervising in a high voltage converter station |
| 05/20/1999 | WO1999025048A1 Waveform reconstruction from distorted (saturated) currents |
| 05/18/1999 | US5905619 Arc fault detection system |
| 05/12/1999 | EP0915547A2 Electronic overload relay |
| 05/12/1999 | EP0818075B1 Accidental arc detector for electric power distribution switching equipments |
| 05/12/1999 | CN1043392C Earth fault circuit breaker |
| 05/11/1999 | US5903157 Measuring system for enclosed high-voltage switchgear |
| 05/11/1999 | CA2130534C Arc detection using current variation |
| 05/11/1999 | CA2066636C Dual shunt current regulator |
| 05/06/1999 | WO1999007971A3 System and related methods for detecting and measuring the operational parameters of a garage door |
| 05/06/1999 | DE19749945A1 Load equalising adjustment circuit for trigger and power switch circuit low voltage (LV) installations |
| 04/29/1999 | WO1999021260A1 System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients |
| 04/20/1999 | US5896262 Arc fault detector with protection against nuisance trips and circuit breaker incorporating same |
| 04/20/1999 | US5896257 Two sensor for over-current protection and current sensing configuration motor control |
| 04/13/1999 | US5894394 Intelligent power switch and switching apparatus |
| 04/08/1999 | DE19745597A1 Control and regulation of vehicle windows |
| 04/08/1999 | DE19743238A1 Electronic fuse circuit for separating consumer from voltage source |
| 04/01/1999 | DE19744204A1 Over-current trip with display unit e.g. for installing in switch cabinet |
| 04/01/1999 | DE19744202A1 Fly-back converter circuit esp. in current transformer device for electronic release circuit with switched-mode power supply (SMPS) |
| 03/31/1999 | EP0905848A1 Earth fault detection circuit having a minimum delay for high fault currents |
| 03/31/1999 | EP0905845A2 Overcurrent trip device with display control depending on the energy |
| 03/30/1999 | US5889643 Apparatus for detecting arcing faults and ground faults in multiwire branch electric power circuits |
| 03/25/1999 | DE19742896A1 Electronics protection module for switching device, e.g. low-voltage power switch |
| 03/24/1999 | EP0903459A1 Window opening and closing apparatus |
| 03/24/1999 | CN1042682C Ground fault circuit interrupter with immunity to wide band noise |
| 03/23/1999 | US5886861 Apparatus providing response to arc faults in a power distribution cable protected by cable limiters |
| 03/16/1999 | US5883578 Loss of potential determination for use in protective relays for electric power systems |
| 03/15/1999 | CA2247077A1 Apparatus providing response to arc faults in a power distribution cable protected by cable limiters |
| 03/11/1999 | WO1999012048A1 Fault detection apparatus and method of detecting faults in an electrical distribution network |
| 03/11/1999 | CA2302213A1 Fault detection apparatus and method of detecting faults in an electrical distribution network |
| 03/04/1999 | WO1999010753A1 Method for the location of a high-resistance earth fault in a power distribution system on the basis of current measurements |
| 03/04/1999 | DE19738699A1 Circuit breaker release magnet operating circuit |
| 03/04/1999 | DE19738698A1 Electronic release unit for switched power supply |
| 03/03/1999 | EP0899846A2 Actuating circuit for a tripping magnet of a circuit breaker |
| 03/03/1999 | EP0899845A2 Feeding circuit for a tripping magnet of a circuit breaker |
| 02/25/1999 | WO1999009628A1 Fault-current protective switchgear |
| 02/25/1999 | DE19810044A1 Verfahren zur Überwachung eines Schutzgerätes Method for monitoring a protective device |
| 02/25/1999 | DE19735743A1 Fault-current protection device e.g. for protecting against dangerous fault-currents in electrical equipment and installations |
| 02/25/1999 | CA2301256A1 Residual current device |