| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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| 03/25/2009 | CN101395778A Load recognition and series arc detection using load current/line voltage normalization algorithms |
| 03/25/2009 | CN101395777A Systems, devices, and methods for arc fault management |
| 03/25/2009 | CN101394084A Novel plugging device of surge protector |
| 03/25/2009 | CN101394077A Digital protective relay system |
| 03/25/2009 | CN101394076A Digital protective relay system |
| 03/24/2009 | US7508644 Spark gap apparatus and method for electrostatic discharge protection |
| 03/24/2009 | US7508643 System for overvoltage suppression for construction equipment |
| 03/24/2009 | US7508639 Input/output devices with robustness of ESD protection |
| 03/24/2009 | US7508295 Protection circuit |
| 03/18/2009 | EP2035848A2 Detecting sub-system |
| 03/18/2009 | EP1075723B1 Closing device with a safety function |
| 03/18/2009 | CN100470989C Integrated surge current limiter circuit and method |
| 03/18/2009 | CN100470984C Residual current breaker |
| 03/17/2009 | US7505241 Transient voltage surge suppression device |
| 03/17/2009 | US7504750 Device of protection against a polarity reversal |
| 03/11/2009 | EP2033288A1 A method of detecting faults on an electrical power line |
| 03/11/2009 | CN100468907C High speed transfer system |
| 03/11/2009 | CN100468903C Three electrode gap protective device for overvoltage protection system |
| 03/11/2009 | CN100468902C A low-voltage circuit breaker comprising an interface unit |
| 03/11/2009 | CN100468279C External clock to obtain multiple synchronized computers |
| 03/10/2009 | US7502213 Surge absorber |
| 03/10/2009 | US7502212 IDCI with reset lockout and independent trip |
| 03/05/2009 | WO2009027373A2 Measuring and/or switching device |
| 03/05/2009 | WO2008049436A9 Method and device for detection of a loose connection |
| 03/04/2009 | EP2031727A2 ARC flash elimination system, apparatus, and method |
| 03/04/2009 | EP0820651B1 Arcing fault detection system |
| 03/04/2009 | CN201204433Y Operating panel for relay protection experiment power supply cabinet |
| 03/04/2009 | CN100466141C Leakage circuit breaker |
| 03/03/2009 | US7499251 Arcing fault protection system for an air arc switchgear enclosure |
| 02/26/2009 | US20090052098 Circuit interrupting device with reverse wiring protection |
| 02/26/2009 | DE102007044632B3 Control assembly for switching device, has contact element for producing force-fit and electrical connection between by-pass switching component and power element assembly of switching device |
| 02/25/2009 | EP2028499A1 Insulation control for interconnectable power grids with insulated neutral |
| 02/25/2009 | CN100463772C Closed loop backdrilling system |
| 02/19/2009 | WO2008157695A3 Fault protection device with ground trip delay and method |
| 02/19/2009 | US20090044761 Method and apparatus for teleoperation, guidance and odor detection training of a freely roaming animal through brain stimulation |
| 02/18/2009 | CN101371415A Wireless system for one or more electrical switching apparatus |
| 02/18/2009 | CN101371414A Circuit breaker and method for sensing current indirectly from bimetal voltage and determining bimetal temperature and corrected temperature dependent bimetal resistance |
| 02/17/2009 | US7492568 Maintenance-free static eliminator |
| 02/17/2009 | US7492566 Low resistance transient blocking unit |
| 02/17/2009 | US7492563 Low-voltage circuit breaker comprising an interface unit |
| 02/17/2009 | US7492162 Inverter system |
| 02/12/2009 | CA2695869A1 Arc fault circuit interrupter and method of detecting and interrupting a resistive series arc of a power circuit |
| 02/12/2009 | CA2695866A1 Circuit interrupter including test circuit |
| 02/10/2009 | US7489489 Load current sensing technique |
| 02/10/2009 | US7489486 Semiconductor device |
| 02/04/2009 | CN100459357C Voltage limiter |
| 02/03/2009 | US7486495 Networked series of sensors having distributed measurement and control for use in a hazardous environment |
| 02/03/2009 | US7486494 SCR with a fuse that prevents latchup |
| 02/03/2009 | US7486082 Anomaly detection in inverter system |
| 02/03/2009 | CA2248491C Arc fault detector with limiting of sensed signal to shape response characteristic and circuit breaker incorporating same |
| 01/28/2009 | EP2018699A2 System for optically detecting an electrical arc in a power supply |
| 01/27/2009 | US7483252 Circuit protection device |
| 01/27/2009 | US7483251 Multiple planar inductive loop surge suppressor |
| 01/27/2009 | US7483248 Method and apparatus for detecting current changes in integrated circuits |
| 01/27/2009 | US7483247 Multi-stack power supply clamp circuitry for electrostatic discharge protection |
| 01/27/2009 | CA2313631C Ground fault circuit interrupter for circuits operating with non-sinusoidal waveforms |
| 01/27/2009 | CA2216524C Electric arc detector sensor circuit |
| 01/22/2009 | US20090021295 Dual reactive shunt low noise amplifier |
| 01/21/2009 | EP2017867A2 Measuring device for measuring a periodic analogue signal |
| 01/21/2009 | EP2016657A1 Systems, devices, and methods for arc fault detection |
| 01/21/2009 | EP2016656A1 Electrical switching apparatus and method employing acoustic and current signals to distinguish between parallel and series arc faults |
| 01/21/2009 | EP2016605A1 Circuit breaker for motor protection and/or line protection |
| 01/21/2009 | CN100454183C System linkage apparatus, setting apparatus for system linkage apparatus and method of setting set values of system linkage apparatus |
| 01/20/2009 | US7480123 Electrical receptacle |
| 01/20/2009 | US7479710 Electrical supply network |
| 01/20/2009 | US7479615 Wide range static neutralizer and method |
| 01/15/2009 | WO2009008994A1 Expandable electrical plug and surge protector |
| 01/14/2009 | EP2013954A1 System for controlling a power, water or gas supply |
| 01/13/2009 | US7477503 Circuit protection device |
| 01/13/2009 | US7477496 High input voltage tolerant input/output circuit being free from electrostatic discharge voltage |
| 01/08/2009 | US20090009921 Overvoltage protection element |
| 01/07/2009 | EP2011207A1 Residual current device having voltage dependent and voltage independent modes of operation |
| 01/07/2009 | CN201178299Y Intelligent motor protector |
| 01/07/2009 | CN201178292Y Anti-interference machine box |
| 01/07/2009 | CN100449898C Overvoltage protector for electric network |
| 01/06/2009 | CA2452352C System and method for calibration of data in an electric power monitoring system |
| 01/01/2009 | US20090002912 Electric fence energizer lightning protection |
| 12/31/2008 | EP2008349A2 Systems, devices, and methods for temperature compensation in arc fault detection systems |
| 12/31/2008 | CN100448131C A medium voltage integrated switchgear |
| 12/30/2008 | US7471493 Fast and compact SCR ESD protection device for high-speed pins |
| 12/30/2008 | CA2291939C Method for diagnosing degradation in aircraft wiring |
| 12/30/2008 | CA2220053C Method and apparatus for detecting arcing in ac power systems by monitoring high frequency noise |
| 12/30/2008 | CA2216544C Circuit interrupter including an electric arc monitoring circuit |
| 12/25/2008 | US20080316672 DC type of self-discharged fiber-like static eliminator |
| 12/25/2008 | US20080316668 Methods and apparatuses for performing common mode pulse compensation in an opto-isolator |
| 12/25/2008 | US20080316658 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof |
| 12/24/2008 | CA2704338A1 Fault protection device with ground trip delay and method |
| 12/23/2008 | US7468879 Lightning protection device wet/dry glow-based streamer inhibitor |
| 12/23/2008 | US7468877 Overcurrent detection circuit and power supply apparatus provided therewith |
| 12/23/2008 | CA2267009C Plug-in multifunction tester for ac electrical distribution system |
| 12/23/2008 | CA2248493C Arc fault detector with immunity to tungsten bulb burnout and circuit breaker incorporating same |
| 12/18/2008 | WO2008153578A1 Mems micro-switch array based on current limiting arc-flash eliminator |
| 12/18/2008 | WO2008069988A3 Method and apparatus for detecting high impedance fault |
| 12/18/2008 | US20080310071 Structure for installing lightning arrester for electric pole |
| 12/17/2008 | EP2002456A1 Energy supply system and method related thereto |
| 12/17/2008 | CN101325326A Method and apparatus for control of an electric power system in response to circuit abnormalities |
| 12/16/2008 | US7466527 Electrostatic discharge protection circuit |
| 12/16/2008 | CA2442170C Motorized machine electrical system arc detection apparatus and methods |
| 12/11/2008 | WO2008148793A1 Increased reliability in the processing of digital signals |
| 12/11/2008 | WO2008148727A1 Voltage measurements of electrically conducting elements in systems for controlling electrical processes |