Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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01/09/2013 | CN102868135A Novel intelligent controller trip circuit |
01/08/2013 | CA2508102C Arc fault circuit breaker and apparatus for detecting wet track arc fault |
01/03/2013 | US20130003235 Surge current suppressing circuit |
01/02/2013 | CN101277008B Arc flash elimination apparatus and method |
01/01/2013 | US8345400 Surge suppression circuit for a load control device |
12/27/2012 | WO2012175779A1 Method and device for monitoring partial discharges |
12/27/2012 | WO2012175108A1 Method and device for protection zone selection in a multiple busbar arrangement |
12/26/2012 | EP2538511A1 Arc flash system for a power circuit |
12/26/2012 | CN202633891U Function settable control and protection switch device |
12/26/2012 | CN202633890U Protection circuit of relay in circuit breaker operating interface |
12/25/2012 | US8339759 Relocatable power tap with surge protector |
12/20/2012 | WO2012171694A1 A method for detecting earth faults |
12/20/2012 | WO2012141835A3 Method and system for programming and implementing automated fault isolation and restoration using sequential logic |
12/20/2012 | US20120320485 Leakage detection protection circuit with lightning protection |
12/20/2012 | US20120320484 Fire Sentry |
12/20/2012 | CA2778712A1 Surge arrester and gas-insulated electric apparatus |
12/18/2012 | US8335069 Overvoltage protection element |
12/18/2012 | US8335064 ESD clamp adjustment |
12/12/2012 | EP2533060A1 Directional detection of resistive earth fault and medium-voltage conductor breakage |
12/12/2012 | CN202602238U Automatic short-circuit protection device |
12/12/2012 | CN102822689A Transient detector and fault classifier for a power distribution system |
12/12/2012 | CN101512861B Method and differential protection device for generating fault signal for displaying fault of current transformer secondary circuit |
12/12/2012 | CN101467322B Residual current device having voltage dependent and voltage independent modes of operation |
12/11/2012 | US8331074 Grading devices for a high voltage apparatus |
12/11/2012 | CA2558422C Systems, devices, and methods for detecting arcs |
12/06/2012 | DE102011076906A1 Verfahren zum Betreiben eines Wechselrichters sowie Wechselrichter A method of operating an inverter and inverter |
12/05/2012 | EP2530800A2 Distribution protection system and method |
12/05/2012 | EP2529458A1 Arrangement for protecting, controlling and/or monitoring an electrical switchgear or energy supply system |
12/05/2012 | CN1682419B Electrical network protection system |
12/04/2012 | CA2444159C Arc fault detector with circuit interrupter |
11/29/2012 | WO2012159714A1 Residual-current protection for electric tools |
11/29/2012 | WO2012159652A1 Method and system for detecting an arc fault in a power circuit |
11/28/2012 | CN202565543U Backlight protection circuit of automobile switch |
11/28/2012 | CN202564909U Under-voltage time-delay device of breaker |
11/27/2012 | CA2659699C Devices, systems, and methods for adaptive rf sensing in arc fault detection |
11/27/2012 | CA2411238C Circuit breaker for detecting an excessive voltage and tripping responsive thereto |
11/22/2012 | WO2012155974A1 Method for generating a fault signal |
11/21/2012 | CN101568983B Improved coupler |
11/15/2012 | WO2012152304A1 Method and protective device for recognising a symmetrical short-circuit in a multi-phase electrical power supply network |
11/13/2012 | US8310800 Fault detector for surge suppressor |
11/13/2012 | US8310799 Transient voltage protection device, material, and manufacturing methods |
11/07/2012 | CN101523678B Voltage measurements of electrically conducting elements in systems for controlling electrical processes |
11/06/2012 | US8305721 Electrostatic discharge protection device and method thereof |
11/06/2012 | US8305718 Low parasitic capacitance electrostatic discharge protection circuit |
11/01/2012 | WO2012148644A2 Conductive polymer fuse |
10/30/2012 | US8300378 Method and apparatus for protecting power systems from extraordinary electromagnetic pulses |
10/26/2012 | WO2012143361A1 Circuit assembly for an alternating current contactor, motor protection relay and method for producing a power supply unit |
10/26/2012 | CA2833080A1 Circuit arrangement for an alternating current contactor, motor protection relay and method for producing a voltage supply |
10/24/2012 | EP2515403A1 Circuit arrangements for an alternating current contactor, motor protection relay and method for producing a voltage supply |
10/24/2012 | EP2514057A2 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 |
10/24/2012 | EP2514056A1 Method for testing electric components in a mains supply, in particular in a mains supply for a building |
10/24/2012 | CN202503257U Self-powered intelligent protection apparatus |
10/23/2012 | US8295018 Transmission-line-based ESD protection |
10/17/2012 | EP2511997A2 Method and apparatus for control of an electric power system in response to circuit abnormalities |
10/17/2012 | EP2510367A1 Method for arc detection and devices thereof |
10/17/2012 | CN102742108A Arrangement for protecting, controlling and/or monitoring an electrical switchgear or energy supply system |
10/17/2012 | CN102738764A Electronic controller for breaker |
10/16/2012 | CA2558860C Digital signal processor implementation of high impedance fault algorithms |
10/16/2012 | CA2503583C Method and apparatus for control of an electric power system in response to circuit abnormalities |
10/11/2012 | WO2012136390A1 An apparatus for testing an arc fault detector |
10/10/2012 | CN202488083U Analogue integrated circuit of universal protector |
10/04/2012 | DE112009002062T5 Automatisierungsvorrichtungen mit integrierten Kommunikationsservern Automation devices with integrated communications servers |
10/03/2012 | EP2506379A2 System and method for assuring utility network security and reliability |
10/03/2012 | CN1348623B Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
09/27/2012 | WO2012127007A1 Domestic appliance with protection circuit |
09/27/2012 | WO2012126504A1 Method and device for linearizing a transformer |
09/25/2012 | US8274775 Electrical protection component with a short-circuiting device |
09/25/2012 | US8274774 Intrinsically safe communications circuit |
09/20/2012 | WO2012125238A2 Methods, systems, and apparatus and for detecting parallel electrical arc faults |
09/19/2012 | CN102687357A 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 |
09/19/2012 | CN102684135A Method for protecting relay in operation interface of breaker |
09/18/2012 | US8270139 Adjustable arc electrode assembly and method of assembling |
09/18/2012 | US8270137 Interposer for an integrated DC-DC converter |
09/18/2012 | CA2329127C Mimic high pass filter in a protective relay |
09/17/2012 | DE202011051561U1 Vorrichtung zur Unterbrechung und/oder Begrenzung eines Gleichstroms A device for interrupting and / or limiting a direct current |
09/11/2012 | US8264813 Electrostatic chuck device |
09/11/2012 | US8264811 Apparatus for the dispersal and discharge of static electricity |
09/07/2012 | WO2012116722A1 Method and system for detecting an arc fault in a power circuit |
09/05/2012 | CN101291081B Data sampling and transmission module for power distribution system |
09/04/2012 | US8259430 Surge protection device for isolating premise devices |
09/04/2012 | US8259429 Amplification relay device of electromagnetic wave and a radio electric power conversion apparatus using the device |
08/30/2012 | WO2012113419A1 Method for identifying arcing faults and circuit breaker |
08/30/2012 | CA2827522A1 Method for identifying arcing faults and circuit breaker |
08/29/2012 | CN102652386A Method for testing electric components in mains supply, in particular in mains supply for building |
08/29/2012 | CN101771241B Method and device for protecting optical transceiver from destruction of thunder and surge pulse |
08/28/2012 | US8254071 Method and apparatus of providing 2-stage ESD protection for high-speed interfaces |
08/22/2012 | CN202395414U A circuit protection device and an electronic circuit comprising the same |
08/22/2012 | CN101615539B Release sampling circuit |
08/21/2012 | US8248740 High speed current shunt |
08/21/2012 | US8246770 Copper grid repair technique for lightning strike protection |
08/21/2012 | CA2686750C Power switch for preventing accidental arcs |
08/16/2012 | DE112010002582T5 Störlichtbogenerkennungssystem Störlichtbogenerkennungssystem |
08/14/2012 | US8243413 Polymer surge arrester |
08/14/2012 | US8243406 ESD protection device and composite electronic component of the same |
08/09/2012 | US20120200978 Modular and weather resistant overvoltage protection system for wireless communication systems |
08/08/2012 | EP2483981A1 Communication network for a low voltage electric switchgear |
08/07/2012 | US8238069 ESD protection device |
08/02/2012 | WO2012056287A3 A protection relay for sensitive earth fault prtection |
08/01/2012 | EP2482410A1 Relay and method for protecting transformer, transformer protecting system having the same |
08/01/2012 | EP2482409A2 DC Arc fault detection and protection |