Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
05/2012
05/15/2012CA2405135C Method and apparatus for detecting and suppressing a parallel arc fault
05/10/2012WO2012061014A1 Reliable electrical distribution system with alternate power source
05/10/2012WO2012059980A1 Phase control switching device and closing phase control method
05/10/2012WO2012059136A1 Monitoring a power supply line supplied at one end for earth faults
05/10/2012WO2012012426A3 Continuous uninterruptable ac grounding system for power system protection
05/10/2012US20120113558 Actuation and protection utilizing active material activation during lightning strikes and similar events
05/10/2012US20120113556 Apparatus for testing electronic devices
05/10/2012US20120113555 Fault interrupting devices and control methods therefor
05/10/2012US20120113554 Dc feeder protection system
05/10/2012US20120113552 Semiconductor integrated circuit
05/10/2012US20120113550 Mems-based switching systems
05/10/2012DE102011118000A1 Wechselstrom-Schutzadapter AC adapter protection
05/10/2012DE102009036861B4 Verfahren zur Regelung eines Spannungswandlers, Spannungswandler sowie Betriebsgerät mit einem Spannungswandler Method for regulating a voltage transformer, voltage transformer, and operating device with a voltage converter
05/10/2012CA2815679A1 Phase control switchgear and closing phase control method
05/09/2012EP2450926A1 Electrical disconnection device and surge arrester having the same
05/09/2012EP2449642A1 Device and method for securing an electric line with a controllable switching element
05/09/2012EP2319150B1 Substation automation with redundant protection
05/09/2012EP1599738B1 Detection of earth faults in three phase systems
05/09/2012CN202218465U LED (Light Emitting Diode) drive power supply with various light dimming manners and input voltage isolation-blocking function
05/09/2012CN202218464U LED driving power source having multiple dimming method
05/09/2012CN202218463U Light-emitting diode (LED) driving power supply with input voltage isolation protection function
05/09/2012CN202218051U Intelligent charger
05/09/2012CN202218005U Short circuit protecting circuit and power source having short circuit protecting function
05/09/2012CN202218003U Intelligent overload protection device of sewage disposal machine
05/09/2012CN202218002U Electrical wiring protective device
05/09/2012CN202218001U Intelligent terminal modularized integration protector
05/09/2012CN202218000U Improved surge protection device
05/09/2012CN202217999U Electrical wiring apparatus with plurality of modes for getting rid of error wiring
05/09/2012CN202217998U Protective device of cantilever breaker mechanism possessing interlayer
05/09/2012CN202217997U Power-failure protection circuit, power-failure protection device and display device
05/09/2012CN202217996U Vehicle-mounted power supply unloading transient pulse inhibitor
05/09/2012CN202217995U Switch controller having negative control function
05/09/2012CN202217877U Multifunctional timing energy-saving security power socket
05/09/2012CN102447308A Integrative protector of intelligent power grid terminal
05/09/2012CN102447257A Load coordinating power draw for limited ampacity circuits
05/09/2012CN102447250A Simple and practical lightning protection circuit
05/09/2012CN102447245A Alarm device for loom motor
05/09/2012CN102447243A Protection device of electrical equipment
05/09/2012CN102445899A Monitoring circuit
05/09/2012CN101814715B Phase relevant current differential protection method
05/09/2012CN101615781B Device for fast disconnecting high voltage testing source
05/09/2012CN101557093B Small voltaic arc large current DC switch
05/09/2012CN101510680B Zero-phase current differential relay
05/09/2012CN101505056B Peak current limiting apparatus
05/08/2012US8174810 Method and apparatus for reducing differential mode and common mode reflections in motor drives
05/08/2012US8174809 Arrangement and method for deactivating electrical elements when malfunctioning
05/08/2012US8174808 Load driving device
05/08/2012US8174805 Residual current device
05/08/2012US8174804 Circuit breakers with ground fault and overcurrent trip
05/08/2012US8174268 Protective relay monitoring system and method of comparing behavior patterns
05/08/2012US8174132 Folded surface capacitor in-line assembly
05/03/2012WO2012056277A1 Human-machine interface for a self-supplied relay
05/03/2012US20120106018 Spark gap for high-speed cable connectors
05/03/2012US20120106014 Method for protecting an electronic switch incorporated in an automotive vehicle, for controlling the power supply of an electric load
05/03/2012US20120106013 Current sense circuit and battery over-current protection controller
05/03/2012US20120106008 Spike suppression circuit and conversion control circuit
05/03/2012DE102010043291A1 Device for protecting charging cable utilized for charging electric car at charging station, has evaluation unit triggering switch when reaching threshold value, so that control lines assume voltage level of line to stop charging process
05/02/2012EP2448075A1 Apparatus for protecting direct current branch circuit
05/02/2012EP2446514A1 System and method for protecting a circuit
05/02/2012EP2446283A1 Method for identifying type of fault on power line
05/02/2012CN202210673U Triphase electric power open-phase protector
05/02/2012CN202210672U Circuit protector
05/02/2012CN202210598U Dual anti-creeping socket
05/02/2012CN202210597U Overcurrent protection energy-saving control socket
05/02/2012CN202210500U Multifunctional breaker
05/02/2012CN202210499U Low voltage plastic housing intelligent breaker
05/02/2012CN202209546U Intelligent light-emitting diode (LED) lamp tube
05/02/2012CN102439811A A protection system for an it electrical distribution system having a floating reference conductor
05/02/2012CN102438345A Driving circuit of light-emitting diode and short-circuit protection circuit for driving circuit
05/02/2012CN102437553A Inverter device overvoltage protection method
05/02/2012CN102437551A Over-current protection device for transformer and electric locomotive
05/02/2012CN102437549A Two-bus short-circuit protective isolation device and method
05/02/2012CN102437548A Zero-residual-current circuit protection method and residual-current protection circuit breaker using same
05/02/2012CN102437547A Brake unit overload method
05/02/2012CN102437546A Safety switch capable of single wire tripping
05/02/2012CN102437545A Reclosing remote putting on/off relay
05/02/2012CN101800419B Implementation method of single-phase adaptive reclosure
05/02/2012CN101582581B Electricity leakage-prevention and overcurrent protection device
05/02/2012CN101478140B Self-disengaging three phase combined over-voltage protector
05/02/2012CN101447738B Flameproof intrinsically safe power supply device
05/01/2012US8169763 Transient blocking unit having an enhancement mode device in the primary current path
05/01/2012US8169762 Relay with current transformer
05/01/2012US8169760 Signal and power supply integrated ESD protection device
05/01/2012US8169759 Circuit and methods to protect input buffer
05/01/2012US8169757 Circuit breaker with bistable display
05/01/2012CA2608167C Current sensor
04/2012
04/26/2012WO2012052325A1 A protection system for electrical power distribution system using directional current detection and logic within protective relays
04/26/2012US20120099236 Dc branch circuit protecting device
04/26/2012US20120099234 Driving circuit and semiconductor device with the driving circuit
04/26/2012US20120099233 Method And Device For Supervising The Sensitivity Of A Protection Function
04/26/2012US20120098672 ARC Fault Detection Method and Apparatus
04/26/2012CA2814884A1 A protection system for electrical power distribution system using directional current detection and logic within protective relays
04/25/2012EP2443716A1 Device for testing the presence of a short-circuit, and circuit breaker including the same
04/25/2012CN202206119U Protection circuit for intelligent dynamic reactive power compensation device
04/25/2012CN202206118U 一种电流互感二次过电压保护装置 A current mutual inductance secondary overvoltage protection device
04/25/2012CN202206117U 超压过流断电保护的节能控制器 Overpressure overcurrent protection energy-saving controller power failure
04/25/2012CN202206116U 超压断电保护的节能控制器 Overpressure power protection energy-saving controller
04/25/2012CN202206115U 一种超压断电保护的节能控制器 A super-pressure power protection saving controller
04/25/2012CN202206114U 限时关断的节能控制器 Limited off energy-saving controller
04/25/2012CN202206113U 烙铁漏电自动保护装置 Iron leakage automatic protection device
1 ... 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 ... 331