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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07/10/2013 | CN103197578A Robot electric quantity monitoring system |
07/10/2013 | CN102255342B Power manager used by armoured vehicle |
07/10/2013 | CN101978567B Digital protective relay device and data transmission device for the same |
07/10/2013 | CN101405921B An off-mains switch and a control box for electrically driven articles of furniture |
07/09/2013 | US8482896 Overvoltage protection element |
07/09/2013 | US8482893 Integrated photovoltaic source circuit combiner and protection subsystem |
07/09/2013 | US8482892 Alternating current overload protection apparatus and method |
07/09/2013 | US8482890 PCB strip and manufacturing method for electronic component embedded PCB |
07/09/2013 | US8482889 Band-pass structure electrostatic discharge protection circuit |
07/09/2013 | US8482887 Ground-fault circuit interrupter with circuit condition detection function |
07/09/2013 | US8482885 Hybrid switch circuit |
07/09/2013 | US8482884 Emergency utility interruption system |
07/04/2013 | WO2013102012A1 Device and system for reducing overvoltage damage |
07/04/2013 | WO2013101009A1 Redundant server system with an optimized failover arrangement |
07/04/2013 | WO2013067729A3 Method of electricity leakage detection and prevention of electrical equipment's outer surface and system thereof |
07/04/2013 | US20130171847 Leakage protection socket with integrated baffle locking mechanism |
07/04/2013 | US20130170086 Overvoltage protection circuit and portable electronic device comprising same |
07/04/2013 | US20130170083 Power-on reset gfci |
07/04/2013 | US20130170077 Method for operating a ground fault interrupter as well as ground fault interrupter for a frequency converter |
07/04/2013 | DE102011084219B4 Verfahren und Vorrichtung zur Ermittlung eines tatsächlichen Isolationswiderstands in IT-Systemen mit einem funktionalen Erdungswiderstand Method and apparatus for determining an actual insulation resistance in IT systems with a functional earth resistance |
07/04/2013 | DE102005024198B4 Schaltung und leckstromerkennungsverfahren für ein elektrofahrzeug Circuit and leakage current detection method for a electric vehicle |
07/04/2013 | DE10163408B4 Anordnungen und Verfahren zur Fehlerortbestimmung auf einer Kraftübertragungsleitung mit einer einzelnen Anzapfungslast Arrangements and methods for fault location on a power transmission line with a single Anzapfungslast |
07/03/2013 | EP2609661A1 Apparatus for use in estimating a fault level in a network providing an electrical power supply to consumers |
07/03/2013 | CN203039609U Intelligentized vehicle inverter |
07/03/2013 | CN203039408U Lithium battery power source |
07/03/2013 | CN203039360U Power surge protector provided with self-arc-breaking device |
07/03/2013 | CN203039346U Comparison type device for electricity stealing prevention |
07/03/2013 | CN203039345U Self-reset bipolar control overvoltage and undervoltage protection device |
07/03/2013 | CN203039344U 电压瞬变保护系统及电压调节器 Voltage transient protection system and the voltage regulator |
07/03/2013 | CN203039343U Intrinsic safe over-current protection circuit |
07/03/2013 | CN203039342U Rail-type intelligent monitor |
07/03/2013 | CN203039341U Last breaker protecting and resetting device |
07/03/2013 | CN203039340U Device used for accelerating power transmission recovery after tripping of phase discrimination/amplitude discrimination electric leakage protector |
07/03/2013 | CN203039339U Turn-off circuit for eliminating stand-by power consumption of television or air conditioner |
07/03/2013 | CN203039337U Low-power intrinsic safety grating |
07/03/2013 | CN203029453U Safe multifunctional hand warmer |
07/03/2013 | CN103189953A Residual current operated device |
07/03/2013 | CN103187738A Charging circuit and charger |
07/03/2013 | CN103187718A Protection device of central processing unit of power distribution cabinet |
07/03/2013 | CN103187716A Protective circuit of power amplifier tube, method of power amplifier tube and power amplifier tube |
07/03/2013 | CN103187706A Voltage detection leakage protection device for electric water heater |
07/03/2013 | CN103187705A 地线漏电保护装置 Earth leakage protection device |
07/03/2013 | CN103187704A Leakage protection device for preventing electrification of ground wire |
07/03/2013 | CN103187703A Electric wiring protection device |
07/03/2013 | CN103187702A Protection apparatus for signal output device of knitting machine singlechip |
07/03/2013 | CN102064520B Lightning protection automatic switch for satellite television receiver |
07/03/2013 | CN102025143B Transient voltage-resistant delay circuit |
07/03/2013 | CN101958528B Leakage protection method and device |
07/02/2013 | US8479057 Aggregator for connection based anomaly detection |
07/02/2013 | US8477467 Electrostatic discharge protection circuit |
07/02/2013 | US8477466 Protective device with separate end-of-life trip mechanism |
07/02/2013 | US8477465 Earth leakage detection method |
07/02/2013 | US8476913 Improvements relating to the testing of an earth connection |
06/27/2013 | WO2013094785A1 Device for blocking overheating by using short-circuit sensing line |
06/27/2013 | WO2013094565A1 Protective element, protective element fabrication method, and battery module in which protective element is embedded |
06/27/2013 | WO2013093814A2 Overload detection device |
06/27/2013 | WO2013092815A1 Impedance measuring device |
06/27/2013 | WO2013092142A1 Circuit arrangement for suppressing an arc occurring over a contact gap of a switching member |
06/27/2013 | WO2013092037A2 Rectifier circuit |
06/27/2013 | WO2013092031A2 Rectifier circuit |
06/27/2013 | WO2013091689A1 Separating device for direct current interruption between a photovoltaic generator and an electrical apparatus, and photovoltaic system having such a separating device |
06/27/2013 | WO2013091092A1 System for disconnecting electrical power upon regulation failure |
06/27/2013 | WO2012127686A9 Ground fault detection circuit |
06/27/2013 | US20130163139 Variable breakdown transient voltage suppressor |
06/27/2013 | US20130163138 Wire protection method and wire protection device |
06/27/2013 | US20130163137 Circuits and methods for limiting open circuit voltage of photovoltaic strings |
06/27/2013 | US20130163136 Overcurrent Detection Circuit and Overcurrent Detection Method |
06/27/2013 | US20130163135 Protective circuit for a rechargeable battery pack |
06/27/2013 | US20130163134 Battery protection circuit |
06/27/2013 | US20130163133 Grounding apparatus |
06/27/2013 | US20130163132 High speed signaling of power system conditions |
06/27/2013 | DE102011122363A1 Elektrische Ansteuerung für Elektromagnete Electrical control for electromagnets |
06/27/2013 | DE102011057002A1 Device for operational state monitoring of reverse battery protection device, is associated to metal oxide semiconductor field effect transistor-switching unit of reverse battery protection device through channel for detecting voltage drop |
06/27/2013 | CA2857389A1 System for disconnecting electrical power upon regulation failure |
06/26/2013 | EP2608384A1 Modular frequency converter with fault recognition |
06/26/2013 | EP2608343A1 Power supply |
06/26/2013 | EP2608342A1 Overvoltage Protection System and Method |
06/26/2013 | EP2608341A1 Grounding device |
06/26/2013 | EP2608340A1 Multi-directional electrical power protection system |
06/26/2013 | EP2607143A1 Discharge circuit for a converter module in a vehicle |
06/26/2013 | EP2606546A1 Switching device |
06/26/2013 | CN203027179U Brushless direct current evaporation fan |
06/26/2013 | CN203026925U Photovoltaic power station low voltage ride through operation compatible type rapid contact line failure isolation device |
06/26/2013 | CN203026917U Low voltage frequency converter with short circuit protection function |
06/26/2013 | CN203026909U Transparent residual current circuit breaker with screen and capable of directly displaying residual current action amplitude |
06/26/2013 | CN203026908U Residual current circuit breaker with screen and capable of directly displaying residual current action amplitude |
06/26/2013 | CN203026907U Modular three-phase power supply lightning arrester |
06/26/2013 | CN203026906U Resettable over-voltage and under-voltage protector |
06/26/2013 | CN203026905U Low-impedance direct-current overvoltage protection circuit |
06/26/2013 | CN203026904U Over-current protection circuit and PFC (power factor correction) control circuit with same |
06/26/2013 | CN203026903U High-precision air switch |
06/26/2013 | CN203026902U Automatic protection system of electric equipment |
06/26/2013 | CN203026901U Circuit protection device applied to beer machine |
06/26/2013 | CN203026900U Electrical protector for auto-reclosing |
06/26/2013 | CN203026739U Electric leakage protection power plug with improved circuit |
06/26/2013 | CN203025245U Hot-water electric leakage detection device, shower head and electric water heater |
06/26/2013 | CN203025225U Combined type high-voltage prepayment metering device |
06/26/2013 | CN203016595U Safety pad used for bathroom and kitchen |
06/26/2013 | CN103178727A Intelligent direct-current stabilized power supply |
06/26/2013 | CN103178606A Standby power for down-hole emergency refuge facility |