| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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| 09/19/2013 | US20130242438 Driver for switching element and control system for rotary machine using the same |
| 09/19/2013 | US20130241316 Apparatus for controlling power source |
| 09/18/2013 | CN203205840U Connecting device of extra-high voltage converter station DC measuring device and control protection system |
| 09/18/2013 | CN203205821U Controller of residual earth leakage protection breaker |
| 09/18/2013 | CN103311875A Power supply system of automatic re-close circuit breaker |
| 09/18/2013 | CN103311874A Tripping circuit for flux transformer |
| 09/17/2013 | US8537508 Sensing and control electronics for a power grid protection system |
| 09/11/2013 | EP2637275A1 Method and device for controlling the selectivity of electric equipment |
| 09/11/2013 | CN103299501A Arc fault mitigation for photovoltaic systems |
| 09/11/2013 | CN103296641A Power failure protecting device of motor driving system |
| 09/10/2013 | US8531812 Surge arrester with a varistor element and method for producing a surge arrester |
| 09/10/2013 | US8531811 Clamping control circuit for hybrid surge protection devices |
| 09/10/2013 | US8531807 ESD clamp adjustment |
| 09/05/2013 | US20130229744 Lightning protection apparatus and method for floating roof tank |
| 09/05/2013 | US20130229741 Electrical apparatus |
| 09/04/2013 | EP2633595A2 A protection relay for sensitive earth fault portection |
| 09/04/2013 | CN203180480U Communication expansion device of arc light detecting relay |
| 09/04/2013 | CN103280762A Method for preventing misoperation in case of stroking communication base station common building power distribution system by lightning |
| 09/03/2013 | US8526159 Surge protector having a thermal separating device |
| 09/03/2013 | US8526157 Surge arrester and arrangement of a plurality of surge arresters to form an array |
| 09/03/2013 | US8526148 Semiconductor device, DC-DC converter, and protective element |
| 08/29/2013 | US20130222965 Arrester |
| 08/29/2013 | US20130221850 Power supply device for plasma processing |
| 08/28/2013 | EP2632007A1 Apparatus and method for correcting error of acquired data |
| 08/28/2013 | EP2630713A1 Electronic circuit breaker with alternate mode of operation using auxiliary power source |
| 08/28/2013 | EP2630712A1 Circuit breaker with fault indication and secondary power supply |
| 08/28/2013 | CN203166456U Contactor integrating function and structure of electronic type protector |
| 08/28/2013 | CN103269054A Drive circuit for tripping of switch on high-voltage column |
| 08/27/2013 | US8520357 Electrostatic shield for an HVDC transmission component |
| 08/22/2013 | DE102013001612A1 Anordnung zum Anlagen- und Personenschutz Arrangement to protect people and equipment |
| 08/21/2013 | CN103259242A Self-powered switching-on instantaneous protecting device |
| 08/15/2013 | WO2013120101A1 Reduced let through voltage transient protection or suppression circuit |
| 08/14/2013 | EP2626881A1 Method and device for electrical safety by earth leakage |
| 08/14/2013 | CN203135387U Breaker power off automatic opening apparatus |
| 08/14/2013 | CN203135386U Main contact adhesion detection device for AC contactor |
| 08/14/2013 | CN103250316A Multi-pole arcing fault circuit breaker including a neutral current sensor |
| 08/14/2013 | CN103247996A Compensation method for secondary current distortion caused by current transformer saturation |
| 08/14/2013 | CN101617453B Device and method for detecting faulted phases in a multi-phase electrical network |
| 08/13/2013 | US8508908 Electrohydrodynamic (EHD) fluid mover with field shaping feature at leading edge of collector electrodes |
| 08/13/2013 | US8508332 Access control |
| 08/07/2013 | EP2624396A2 Arc control in a fuse protected system |
| 08/07/2013 | CN203119435U Protector input anti-interference device |
| 08/07/2013 | CN203119434U Relay protection device based on multidimensional information |
| 08/07/2013 | CN103236678A Intelligent controller for moulded case circuit breaker |
| 08/06/2013 | US8503147 ESD protection device |
| 07/31/2013 | EP2621045A2 Photovoltaic panel circuitry with theft detection module |
| 07/31/2013 | CN101911239B Arc protection module and tandem circuit including same |
| 07/30/2013 | US8498085 ESD protection circuit |
| 07/25/2013 | WO2013107896A1 Data transmission over packet switched network |
| 07/25/2013 | US20130188291 Electrical Stimulator Line Protector |
| 07/25/2013 | US20130188290 Miswire protection and annunciation of system conditions for arc fault circuit interrupters and other wiring devices |
| 07/24/2013 | EP2618502A1 Data transmission over packet switched network |
| 07/24/2013 | CN203086098U Relay protection power supply output sequential line |
| 07/24/2013 | CN203086097U Relay protection device |
| 07/23/2013 | US8493706 Semiconductor module and data memory module having the same |
| 07/23/2013 | CA2785215A1 Circuit breaker remote tripping |
| 07/23/2013 | CA2610985C Arc fault detector responsive to patterns in interval to interval change in integrated sensed current values |
| 07/18/2013 | WO2013106239A1 Diagnosable reverse-voltage protection for high power loads |
| 07/18/2013 | DE19748627B4 Elektronisches Überlastrelais Electronic Overload Relays |
| 07/17/2013 | CN203071548U Intellectualized controller used for plastic casing breaker |
| 07/17/2013 | CN101556301B 多功能住宅电路断路器 Multifunctional residential circuit breakers |
| 07/16/2013 | US8488291 Zinc-oxide surge arrester for high-temperature operation |
| 07/16/2013 | US8488290 Protective device |
| 07/11/2013 | US20130175248 Electrical or electronic apparatus, in particular welding machine or battery charger |
| 07/10/2013 | EP2612435A2 Control circuit for an electric motor having an electrical power supply control unit |
| 07/10/2013 | EP2612410A1 Method and device for safely switching a photovoltaic system after differentiating the arc type |
| 07/10/2013 | CN203056535U Passive microcomputer protection device |
| 07/09/2013 | US8482896 Overvoltage protection element |
| 07/04/2013 | US20130170084 Method and device for safely switching a photovoltaic system after differentiating the arc type |
| 07/03/2013 | CN203039338U A complementary energy acquiring circuit |
| 07/03/2013 | CN203039337U Low-power intrinsic safety grating |
| 07/03/2013 | CN203039336U Breaker electronic type controller |
| 07/02/2013 | US8477469 Overvoltage protection element |
| 07/02/2013 | US8477468 Circuit protection device |
| 06/27/2013 | WO2013096001A1 High speed signaling of power system conditions |
| 06/27/2013 | WO2013092066A1 Protection apparatus, method and power supply system |
| 06/25/2013 | US8472155 Leakage detection protective circuit |
| 06/25/2013 | CA2445152C Monitoring apparatus |
| 06/20/2013 | US20130155552 Motor drive device |
| 06/18/2013 | US8467205 Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions |
| 06/18/2013 | US8467167 HVDC filter |
| 06/12/2013 | EP2602892A2 Single-sensor microcontroller-based approach for ground fault circuit interrupters |
| 06/12/2013 | CN103155327A Electronic circuit breaker with alternate mode of operation using auxiliary power source |
| 06/12/2013 | CN103155326A Electronic circuit breaker with fault indication and secondary power supply |
| 06/12/2013 | CN103155325A Method and device for safely switching a photovoltaic system after differentiating the arc type |
| 06/12/2013 | CN103151756A Controller for residual leakage protection circuit breaker |
| 06/11/2013 | US8462481 Lightning protection system and aircraft comprising such a system |
| 06/11/2013 | US8462473 Adaptive electrostatic discharge (ESD) protection circuit |
| 06/06/2013 | WO2013079110A1 Selectivity module with serial status signal |
| 06/05/2013 | CN202978205U Control system for direct-current breaker chargers |
| 06/04/2013 | US8456790 Wind power generation system |
| 06/04/2013 | US8456789 Tunable coaxial surge arrestor |
| 06/04/2013 | US8456787 Gas insulated switchgear |
| 06/04/2013 | US8456785 Semiconductor ESD device and method |
| 06/04/2013 | US8456137 Current sensing circuit disconnect device and method |
| 05/30/2013 | WO2013076388A1 Device and method for protection from an electric arc |
| 05/30/2013 | US20130135783 Arrester |
| 05/29/2013 | EP2596560A1 Systems and methods for providing arc fault and/or ground fault protection for distributed generation sources |
| 05/29/2013 | CN202957570U Double power supply microcomputer protection device |
| 05/28/2013 | US8451576 SCR circuit for protecting central office end of telephone line |