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