| Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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| 05/13/2009 | CN100487995C Short-circuit protective circuit |
| 05/13/2009 | CN100487994C Integrated controller for meter and electrical appliance |
| 05/13/2009 | CN100487475C Method and apparatus of detecting internal motor faults in an induction machine |
| 05/12/2009 | US7532956 Distributed power and protection system |
| 05/12/2009 | US7532955 Distributed protection system for power distribution systems |
| 05/12/2009 | US7532450 Surge suppressor |
| 05/12/2009 | US7532447 Electronic circuit configuration for connecting at least one active rotary speed sensor, especially in commercial vehicles |
| 05/12/2009 | US7532445 Transient voltage clamping circuit |
| 05/12/2009 | US7532444 Leakage current monitor |
| 05/12/2009 | US7532346 Information collecting apparatus, rebooting method, program, and remote maintenance system |
| 05/12/2009 | US7531921 Compact non-contact multi-function electrical switch |
| 05/12/2009 | US7531916 Protection circuits for hybrid power systems |
| 05/12/2009 | CA2290212C Intelligent ground fault circuit interrupter employing miswiring detection and user testing |
| 05/07/2009 | WO2009057387A1 Earth leakage detection method |
| 05/07/2009 | WO2009057380A1 Earth leakage detection circuit |
| 05/07/2009 | WO2009056903A1 Overcurent protection circuit, integrated circuit, apparatus and computer program product |
| 05/07/2009 | WO2009056432A1 Short-circuit recognition method for an electric network |
| 05/07/2009 | WO2009019581A3 Circuit interrupter including test circuit |
| 05/07/2009 | WO2007064863A3 Power cord with gfci device and remote test/reset unit for an electrical appliance |
| 05/07/2009 | US20090116161 Power Supply Controller and Threshold Adjustment Method Thereof |
| 05/07/2009 | US20090116160 Arrangement and method for an integrated protection for a power system |
| 05/07/2009 | US20090116159 Output voltage independent overvoltage protection |
| 05/07/2009 | US20090116158 Methods and apparatus for over-voltage protection of device inputs |
| 05/07/2009 | US20090115401 System comprising an automotive fuse and an A/D converter |
| 05/07/2009 | US20090115259 Foam Proportioning System with Solid State Contactor |
| 05/07/2009 | US20090115257 Switchboard apparatus and method |
| 05/07/2009 | DE102008051074A1 Verfahren und Vorrichtung zum Überwachen einer durch einen Leistungshalbleiterschalter angesteuerten Last Method and apparatus for monitoring a driven by a power semiconductor switch load |
| 05/07/2009 | DE102007051794A1 Mehrphasen-Festkörper-Wattstundenzähler Multi-phase solid-watt-hour meter |
| 05/07/2009 | DE102007046347B3 Gerät zum Erfassen eines Fehlerstroms An apparatus for detecting a fault current, |
| 05/06/2009 | CN201234150Y Three strip lithium battery charging management circuit for mobile DVD |
| 05/06/2009 | CN201234120Y Novel comprehensive protector for mining coal drill |
| 05/06/2009 | CN201234117Y Control apparatus for low-voltage isolation technique |
| 05/06/2009 | CN201234116Y Automatic electricity quantity limiter |
| 05/06/2009 | CN201234027Y Filter socket having leakage protection |
| 05/06/2009 | CN201233420Y Multifunction ammeter |
| 05/06/2009 | CN201233302Y True effective value measuring and protecting device output by electric vibrating table power amplifier |
| 05/06/2009 | CN201231370Y Input terminal power-supply protection device of electric welding device |
| 05/06/2009 | CN101427339A Switching device |
| 05/06/2009 | CN101427338A Circuit breaker having fault-current cutoff |
| 05/06/2009 | CN101427327A Process for the dimensioning of an arresting element cut-off switch offor a surge absorberarrester |
| 05/06/2009 | CN101425689A Intelligent remote electricity control system |
| 05/06/2009 | CN101425684A Modular lightning protection device for electric power easy for replacement |
| 05/06/2009 | CN101425676A Under-voltage protection circuit for quasi-resonance electromagnetic water heater |
| 05/06/2009 | CN101425675A High-voltage impulse protection circuit for quasi-resonance electromagnetic water heater |
| 05/06/2009 | CN101425674A Overvoltage protection circuit for quasi-resonance electromagnetic water heater |
| 05/06/2009 | CN101425673A Overcurrent protection circuit for quasi-resonance electromagnetic water heater |
| 05/06/2009 | CN101425672A System and method for control of power distribution networks |
| 05/06/2009 | CN101425353A Non-residual pressure monitor for lightning arrester |
| 05/06/2009 | CN101424710A High frequency current detection circuit, and protection circuit including the high frequency current detection circuit |
| 05/06/2009 | CN100486070C Device for stoping a single-phase asynchronous motor with phase-shifting capacitor |
| 05/06/2009 | CN100486069C Method and system for detecting DC over current protector |
| 05/06/2009 | CN100486068C Method and system for computer based testing using plugins to expand functionality of a test driver |
| 05/05/2009 | US7529073 Protecting medium voltage inductive coupled device from electrical transients |
| 05/05/2009 | US7529071 Circuit for selectively bypassing a capacitive element |
| 05/05/2009 | US7529069 Apparatus and method for ground fault detection and location in electrical systems |
| 04/30/2009 | WO2009052862A1 Differential protection method, system and device |
| 04/30/2009 | WO2008001359A3 Detecting sub-system |
| 04/30/2009 | WO2007005472A3 A new esd device with low trigger voltage and low leakage |
| 04/30/2009 | US20090111294 Bus bar to printed circuit board interface for electric and hybrid electric vehicles |
| 04/30/2009 | US20090109831 Semiconductor laser device protection circuit, optical pickup apparatus, and information recording/reproducing apparatus |
| 04/30/2009 | US20090109590 Self-protected solid-state electrical switching device |
| 04/30/2009 | US20090109587 Over voltage protection for reduced level electrical signal interfaces |
| 04/30/2009 | US20090109586 Monitoring a load driven by a power semiconductor switch |
| 04/30/2009 | US20090107813 System and method for avoiding contact stiction in micro-electromechanical system based switch |
| 04/30/2009 | DE102004026114B4 Diagnosesysteme und Verfahren für eine Vorrichtung zur Erfassung eines Leckstroms Diagnostic systems and methods for a device for detecting a leakage current |
| 04/30/2009 | DE102004014864B4 Schutzkreis zum Schutz vor elektrostatischen Entladungen von Licht emittierenden Dioden und Verfahren zur Herstellung Protection circuit to protect against electrostatic discharges of light-emitting diodes and methods of making |
| 04/29/2009 | EP2052450A1 Method and apparatus of detecting and compensating for dc residual fault currents on electrical systems |
| 04/29/2009 | EP1847002A4 Methods and circuits for distributing power to spd loads |
| 04/29/2009 | EP1436873B1 System and method for generating and managing quick recovery volumes |
| 04/29/2009 | CN201230281Y Solar panel simulator |
| 04/29/2009 | CN201230200Y Protection circuit for limiting working power of electrical appliance |
| 04/29/2009 | CN201230199Y Power-down protection circuit |
| 04/29/2009 | CN201230198Y Overpressure protector for industrial sewing machine system |
| 04/29/2009 | CN201230197Y Electric power and conductive line temperature limiter for building unit |
| 04/29/2009 | CN201230196Y Apparatus for monitoring working state of fuse |
| 04/29/2009 | CN201230077Y Leakage protection plug |
| 04/29/2009 | CN201229642Y Electric fire disaster detector |
| 04/29/2009 | CN101421895A Systems, devices, and methods for temperature compensation in arc fault detection systems |
| 04/29/2009 | CN101420121A Surge protecting circuit |
| 04/29/2009 | CN101420116A Intelligent integrated electricity leakage protection device |
| 04/29/2009 | CN101420115A Method and device for cutting off electric power |
| 04/29/2009 | CN101420114A Multifunctional three phase power source protector |
| 04/29/2009 | CN101420113A Three phase electric power protector having counting and timing function |
| 04/29/2009 | CN100483883C Transmission line micro processor adaptive split-phase longitudinal difference protection method |
| 04/29/2009 | CN100483882C Integrated breaker for electric leakage and manufacturing method thereof |
| 04/29/2009 | CN100483881C Relay protection device |
| 04/29/2009 | CN100483874C Device for supervising a leakage current of a lighting arrester |
| 04/28/2009 | US7526710 Recording format for information date, information recording/reproducing cording circuit |
| 04/28/2009 | US7526667 Error reporting and correcting method for peripheral |
| 04/28/2009 | US7525781 Snubber circuit |
| 04/28/2009 | US7525780 Liquid crystal television and backlight power supplying circuit |
| 04/28/2009 | US7525778 Semiconductor integrated circuit having protection elements for preventing MOS transistors from plasma damage |
| 04/28/2009 | US7525777 Fireguard circuit |
| 04/28/2009 | CA2428361C Gfci that cannot be reset until wired correctly on line side and power is applied |
| 04/26/2009 | CA2640179A1 Self-protected solid-state electrical switching device |
| 04/23/2009 | WO2009052305A2 Adaptive power management system for aircraft galleys |
| 04/23/2009 | WO2009049803A1 Method for fault location on series compensated power transmission lines with two-end unsynchronized measurement |
| 04/23/2009 | WO2007038598A3 Ground fault circuit interrupter having an integrated variable timer |
| 04/23/2009 | WO2006076578A3 System for maintaining fault-type selection during an out-of-step condition |
| 04/23/2009 | US20090103221 Adaptive power management system for aircraft galleys |