Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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11/02/2011 | EP1287599B1 Software-controlled evaluation of fault current for protection and monitoring systems |
11/01/2011 | US8050007 Lightning damage abatement system and attachment method |
10/27/2011 | CA2792338A1 Apparatus, system, and method for creating one or more slow-speed communications channels utilizing a real-time communication channel |
10/25/2011 | US8045314 Method of atmospheric discharge energy conversion, storage and distribution |
10/25/2011 | US8045312 Devices and system for electrostatic discharge suppression |
10/19/2011 | EP2377217A2 Power grid outage and fault condition management |
10/18/2011 | US8040653 Surge protector |
10/13/2011 | WO2011127270A2 Arc fault circuit detection methods, systems, and apparatus including delay |
10/13/2011 | WO2011126460A1 Arc preventing switch |
10/12/2011 | CN202009218U Power supply, relay protection device and relay protection system |
10/12/2011 | CN202009217U Control circuit board, protective relaying device and relay protection system |
10/12/2011 | CN202008965U Indicator light, relay protection device and relay protection system |
10/11/2011 | US8035947 Controlled convection thermal disconnector |
10/11/2011 | US8035946 Overvoltage protector circuit and a detector circuit for supervising such a protector circuit |
10/11/2011 | CA2387022C Circuit breaker with shunt |
10/06/2011 | WO2011121386A1 A method for transfer of control between devices in a substation system and a device thereof |
10/06/2011 | WO2011120112A1 Improvements introduced in monitoring system of dielectric state of high voltage equipments with capacitive insulation, such as condensive bushings, current transformers, potential transformers and similar |
10/05/2011 | EP1726076B1 Method for monitoring the displacement of a component driven by a driving device |
10/05/2011 | CN1656659B Residual current circuit breaker |
10/05/2011 | CN101394076B Digital protective relay system |
10/04/2011 | US8031456 Explosion-roof and flameproof pullout safety surge absorbing module |
10/04/2011 | CA2256243C Arc fault detector with circuit interrupter and early arc fault detection |
09/28/2011 | EP2368302A1 Arc fault circuit interrupter and method providing improved nuisance trip rejection |
09/27/2011 | US8027138 Capacitor sharing surge protection circuit |
09/27/2011 | US8027136 Surge suppression device having one or more rings |
09/21/2011 | EP2367252A2 Overcurrent relay |
09/21/2011 | EP2366215A1 Power distribution system and electrical switching apparatus employing a filter trap circuit to provide arc fault trip coordination |
09/21/2011 | CN102197559A Automation apparatuses with integrated communications servers |
09/20/2011 | US8022653 Method and circuit arrangement for the electrical control and/or regulation of the movement of an electrically driven unit |
09/13/2011 | US8018707 High amperage surge arrestors |
09/07/2011 | CN201966573U 防雷箱空气开关的固定装置 Lightning fixtures air switch box |
09/07/2011 | CN201966572U 一种继电保护装置 One kind of protection devices |
09/07/2011 | CN1957513B Digital signal processor implementation of high impedance fault algorithms |
09/06/2011 | US8014121 Electrical discharge countermeasure device |
09/06/2011 | US8014114 Semiconductor integrated circuit |
09/06/2011 | US8014113 Protection for proximity electronics against electrostatic discharge |
08/31/2011 | EP1595185B1 Electric automation device and method for adjusting the functions of the electric automation device |
08/31/2011 | CN102171904A Overload relay |
08/30/2011 | US8009401 Voltage surge protection device comprising selective disconnection means |
08/30/2011 | US8009399 ESD improvement with dynamic substrate resistance |
08/25/2011 | US20110205681 Gas insulated switchgear |
08/24/2011 | EP2360805A1 Electrical power transmission system of a vehicle. |
08/24/2011 | EP2359447A1 Unit for monitoring and/or signaling or visualizing operating parameters of a gas-insulated switchgear system |
08/24/2011 | CN102165663A Method and arrangement for generating an error signal |
08/24/2011 | CN102165662A Electrostatic discharge (ESD) protection circuit and method |
08/23/2011 | US8004815 Lightning protection system and an aircraft having such a system |
08/23/2011 | US8004811 Power strip having surge protective circuit |
08/17/2011 | EP2357711A1 Method for detecting an over-current or a current imbalance, current fault detector, circuit interrupter and housing thereof |
08/17/2011 | EP2357482A1 Method and device for evaluating fast current changes |
08/17/2011 | CN201937234U 双电路或多电路放电装置 Dual-circuit or circuit discharge device |
08/16/2011 | US8000077 DC noise absorbing device for preventing surges and regulating voltages |
08/16/2011 | US8000068 ESD protection for field effect transistors of analog input circuits |
08/10/2011 | EP2355288A2 Device and method for processing input data of protective relay |
08/10/2011 | EP2355287A1 Overvoltage protection device for electromotors |
08/09/2011 | CA2414826C Arc fault detector immune to dimmer transients and a circuit breaker incorporating the same |
08/09/2011 | CA2411644C Internal fault indicator for power electrical devices |
08/04/2011 | WO2011091820A1 Arrangement for protecting, controlling and/or monitoring an electrical switchgear or energy supply system |
08/03/2011 | EP2352213A1 Vorrichtung und Verfahren zum Differentialschutz, und eine solche Vorrichtung enthaltendes elektrisches Gerät |
08/03/2011 | EP2352038A1 Method for detecting single phase grounding fault based on harmonic component of residual current |
08/03/2011 | EP1625600B1 A surge arrester |
08/03/2011 | CN201918692U 剩余电流保护器用的电源装置 Used residual current protection of the power supply unit |
08/02/2011 | US7991826 Digital relay having an improved man-machine interface |
08/02/2011 | US7990675 Monolithic solid state relay circuit for telecom wireline applications |
08/02/2011 | CA2371493C Method for operating an electric motor, and an electric motor for carrying out such a method |
07/28/2011 | WO2011091348A2 Transient detector and fault classifier for a power distribution system |
07/28/2011 | WO2011088500A1 Equipment safety control |
07/28/2011 | US20110181296 Arc fault detector with circuit interrupter |
07/28/2011 | CA2787943A1 Transient detector and fault classifier for a power distribution system |
07/27/2011 | EP2348594A1 Circuit interrupter with over-current and fault current detector |
07/27/2011 | EP2347490A1 Residual current circuit breaker |
07/27/2011 | CN101630829B Strong electric switching value input module with requirement on power |
07/27/2011 | CN101496248B Devices, systems, and methods for adaptive RF sensing in arc fault detection |
07/26/2011 | US7986503 Circuit protection system |
07/26/2011 | US7986502 High trigger current silicon controlled rectifier |
07/26/2011 | US7986148 Arc fault detector |
07/26/2011 | CA2286514C Improvements relating to monitoring apparatus for electrical circuits |
07/20/2011 | CN102130434A Power down preventing circuit |
07/18/2011 | CA2727139A1 Premises power source accessory panel for an outdoor unit and method of adapting an outdoor unit with the same |
07/12/2011 | US7978455 Adaptive transient blocking unit |
07/12/2011 | US7978450 Electrostatic discharge protection circuitry |
07/05/2011 | US7974063 Hybrid surge protector for a network interface device |
06/30/2011 | WO2010077830A3 Power grid outage and fault condition management |
06/28/2011 | US7969706 Lightning protection system for aircraft composite structure |
06/28/2011 | CA2290223C Arc fault detector apparatus, means and system |
06/23/2011 | WO2011073772A2 Direct current arc fault circuit interrupter, direct current arc fault detector, noise blanking circuit for a direct current arc fault circuit interrupter, and method of detecting arc faults |
06/23/2011 | WO2011073019A1 Method for testing electric components in a mains supply, in particular in a mains supply for a building |
06/23/2011 | CA2783893A1 Direct current arc fault circuit interrupter, direct current arc fault detector, noise blanking circuit for a direct current arc fault circuit interrupter, and method of detecting arc faults |
06/22/2011 | EP2337177A1 Electronic system and protection method for electric motors |
06/22/2011 | EP2337176A2 Ground fault detection system and method |
06/21/2011 | US7965485 Circuit protection device for photovoltaic systems |
06/21/2011 | US7964996 Systems and methods for protecting peripheral devices from surges |
06/21/2011 | CA2393170C System for power transformer differential protection |
06/14/2011 | US7961111 Home control protection system |
06/08/2011 | EP2329576A1 Electro-optical radiation collector for arc flash detection |
06/08/2011 | EP2329575A1 Protective device with metering and oscillography |
06/08/2011 | EP2329574A1 Method and arrangement for generating an error signal |
06/08/2011 | EP2329573A1 Electrostatic discharge (esd) protection circuit and method |
06/08/2011 | CN201860081U Trigger matrix board structure configurable for outlet of tripping controller |
06/08/2011 | CN102089950A Method for producing a fault signal and electric protective device |
06/08/2011 | CN102089842A Apparatus for shutting off a fault current in a current-carrying line |