| Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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| 03/13/2002 | CN2482255Y Phase-demodulating amplitude discrimination earth leakage protector |
| 03/13/2002 | CN2482254Y Leak action calm value adjuster for earth leakage protective device |
| 03/13/2002 | CN2482253Y Energy-saving electric lamp switch |
| 03/13/2002 | CN2482252Y Intelligent power supply line monitor |
| 03/13/2002 | CN2482237Y Change-over socket with electric leakage protection device |
| 03/13/2002 | CN2482236Y Electric leakage protection change-over plug |
| 03/13/2002 | CN1339858A Lightning protector for low voltage electric equipment |
| 03/13/2002 | CN1080943C Protection system for power receiving station |
| 03/12/2002 | US6356426 Residential circuit breaker with selectable current setting, load control and power line carrier signaling |
| 03/12/2002 | US6356425 Timer-thermal-overload shutoff apparatus |
| 03/12/2002 | US6356424 Electrical protection systems |
| 03/12/2002 | US6356423 Soild state protection circuit for electrical apparatus |
| 03/12/2002 | US6356422 Circuit breaker communication and control system |
| 03/12/2002 | US6356421 System for power transformer differential protection |
| 03/12/2002 | US6356138 Switching device with break detecting function |
| 03/12/2002 | US6356060 Switching circuit and method for use in a switching circuit |
| 03/12/2002 | US6356027 0-10V dimming interface protection circuit |
| 03/07/2002 | WO2001091265A3 Fault tolerant motor drive arrangement with independent phase connections and monitoring system |
| 03/07/2002 | WO2001071874A3 Cvt transient filter |
| 03/07/2002 | WO2001069750A3 Improved recloser coordination scheme |
| 03/07/2002 | WO2001069746A3 Method and apparatus for early ac power failure detection |
| 03/07/2002 | US20020027785 SMPS protection circuit in electronic appliance |
| 03/07/2002 | US20020027432 Power supply negative phase detecting circuit |
| 03/07/2002 | DE10041633A1 Switch apparatus has switch-off process initiated by integrated electronic trigger unit and/or coupling module |
| 03/06/2002 | EP1183764A1 An electrical machine winding ground-fault protection system |
| 03/06/2002 | EP1183763A1 An electrical machine winding ground-fault protection system |
| 03/06/2002 | EP1183664A1 Ground fault location system and ground fault detector therefor |
| 03/06/2002 | EP1183587A2 Computer input performance monitoring system and method |
| 03/06/2002 | EP1074079B1 Power circuit-breaker |
| 03/06/2002 | CN2481033Y Three-phase ac all-control comprehensive starter |
| 03/06/2002 | CN2481031Y Multi-function power switching off alarm device |
| 03/06/2002 | CN2481030Y Intelligent identifying management apparatus for safety electricity use |
| 03/06/2002 | CN2481029Y Fuse convertion alarm device |
| 03/06/2002 | CN1080476C Overcurrent protection circuit |
| 03/06/2002 | CN1080475C Ground fault protecting apparatus and method for solar power generating and solar power generation apparatus using apparatus and method |
| 03/06/2002 | CN1080473C Circuit protection arrangements |
| 03/06/2002 | CA2317782A1 Fail safe ground fault circuit |
| 03/04/2002 | CA2356778A1 Device and method for determining rare short circuit |
| 02/28/2002 | WO2002017459A1 A control circuit for controlling a power supply to a motor |
| 02/28/2002 | WO2002017458A1 Ground fault interrupter |
| 02/28/2002 | WO2002017457A1 Overload circuit interrupter capable of electrical tripping and circuit breaker with the same |
| 02/28/2002 | WO2001078209A3 Improved line current differential protective relaying method and relay for in-zone tapped transformers |
| 02/28/2002 | WO2001076036A3 Differential protective relay for electrical buses with improved immunity to saturation of current transformers |
| 02/28/2002 | WO2001075775A3 Arc fault current interrupter testing device |
| 02/28/2002 | WO2001067705A3 A data transfer and management system |
| 02/28/2002 | US20020026287 Current detecting circuit |
| 02/28/2002 | US20020024793 Solenoid driving device |
| 02/28/2002 | US20020024792 Overvoltage-protection device |
| 02/28/2002 | US20020024782 Overload circuit interrupter capable of electrical tripping and circuit breaker with the same |
| 02/28/2002 | US20020024342 Method and device for locating an insulation fault in an electric cable |
| 02/28/2002 | DE10040231A1 Kurzschluss-Schutzsystem für Schiffe Short circuit protection system for ships |
| 02/28/2002 | CA2355485A1 Surge protection device |
| 02/27/2002 | EP1182761A2 Current detecting circuit |
| 02/27/2002 | EP1181760A2 Devices and methods for protection of rechargeable elements |
| 02/27/2002 | EP1181757A1 Method for operating an electric motor, and an electric motor for carrying out such a method |
| 02/27/2002 | EP1134865A9 Detecting wire break in electrical network |
| 02/26/2002 | US6351829 System and method for distinguishing a device failure from an inter-device communication failure |
| 02/26/2002 | US6351715 Electrical integrated modular power node |
| 02/26/2002 | US6351083 Circuit for selective power supply to electrical units |
| 02/21/2002 | WO2002015361A1 Instant tripping device for short circuits in electrical dc and ac networks of surface and underwater vessels, especially combat vessels, and offshore installations |
| 02/21/2002 | WO2002015358A1 Method and device for localising single-pole earth faults |
| 02/21/2002 | WO2002015356A1 Memory access conversion mechanism |
| 02/21/2002 | WO2002015355A2 Method and device for identifying and localising high-ohm, single-pole earth faults |
| 02/21/2002 | WO2002014736A1 Cryostat for electrical devices such as superconducting current limiters and electrical machines such as transformers, motors, generators and electrical magnets with a superconducting winding |
| 02/21/2002 | WO2001084687A3 Sensitive ground fault detection system for use in compensated electric power distribution networks |
| 02/21/2002 | DE10031964C1 Electric power switch with integrated microprocessor control has wired interface coupled to field bus system and data input/output device coupled to current supply lines |
| 02/20/2002 | EP1180840A2 Power supply negative phase detecting circuit |
| 02/20/2002 | CN2478242Y Switching on fusing speed warner of high voltage breaker |
| 02/20/2002 | CN2478241Y Leakage relay |
| 02/20/2002 | CN1079601C Method and device for separating animal's electric shock signal |
| 02/20/2002 | CN1079600C 数字电流差分系统 Digital current differential system |
| 02/19/2002 | US6349022 Latching protection circuit |
| 02/14/2002 | WO2002013350A1 Power supply device for low-voltage electronic residual current circuit breakers |
| 02/14/2002 | WO2002013349A1 Protection for power grid having an infrared data transmission link using the wap protocol |
| 02/14/2002 | WO2001043253A3 System for power transformer differential protection |
| 02/14/2002 | US20020018327 Multi-winding fault-current limiter coil with flux shaper and cooling for use in an electrical power transmission/distribution application |
| 02/13/2002 | CN2476889Y Earth leakage protection socket |
| 02/13/2002 | CN1335660A Low voltage comprehensive power station monitoring and protecting system |
| 02/13/2002 | CN1335635A Small size fusible circuit, breaker switch |
| 02/12/2002 | US6347028 Load control system having an overload protection circuit |
| 02/12/2002 | US6347027 Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
| 02/12/2002 | US6347025 Ground fault protection method and apparatus |
| 02/12/2002 | US6346778 AC power converter |
| 02/07/2002 | WO2002011263A2 Power grid backfeed protection apparatus |
| 02/07/2002 | WO2002011003A1 Instructive demonstration method of a measuring device using a network, and system for the method |
| 02/07/2002 | US20020015272 Switch device and overcurrent controlling method |
| 02/07/2002 | US20020014943 Overcurrent interrupting device |
| 02/07/2002 | DE10131649A1 Kompakter Unterbrechungsschalter mit Sicherung Compact disconnect switch with fuse |
| 02/07/2002 | DE10128935A1 Überstromunterbrechungseinheit Overcurrent interruption unit |
| 02/07/2002 | DE10031963C1 Electrical load switch has required operating program selected by received remote-control signal |
| 02/07/2002 | CA2384096A1 Interactive demonstration method for measuring instrument and system using network |
| 02/06/2002 | CN2476124Y Outdoor circuit breaker comprehensive control protector |
| 02/06/2002 | CN2476123Y Overcurrent protective device |
| 02/06/2002 | CN2476096Y Zero line-breaking protector |
| 02/06/2002 | CN1334984A Current limiting device |
| 02/05/2002 | US6345370 Method for debugging error in a computer system |
| 02/05/2002 | US6344958 Overvoltage protection circuit with overvoltage removal sensing |
| 02/01/2002 | CA2345486A1 Drop fault current interrupter |
| 01/31/2002 | WO2002009253A1 System for overvoltage protection |
| 01/31/2002 | WO2002009252A1 A switching system |