| 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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| 04/02/2009 | US20090086395 Input voltage clamp for a single-supply system |
| 04/02/2009 | US20090086390 Novel circuit interrupting device with high voltage surge protection |
| 04/02/2009 | US20090086389 Circuit interrupting device with end-of life testing, reverse wiring and high voltage surge capability |
| 04/02/2009 | US20090086388 Control method for preventing malfunction of over current ground relay due to reverse power |
| 04/02/2009 | US20090086387 Circuit interrupter |
| 04/02/2009 | US20090085576 Apparatus, system and methods for ground current detection |
| 04/02/2009 | US20090085446 Switching device, generator-motor apparatus using switching device, drive system including generator-motor apparatus, and computer-readable recording medium on which a program for directing computer to perform control of generator-motor apparatus is recorded |
| 04/02/2009 | DE102008048842A1 Stromversorgung-Steuersystem und Verfahren zur Steuerung der Stromversorgung Power supply control system and method for controlling the power supply |
| 04/02/2009 | DE102007047166A1 Steuerung der Anzeigehintergrundbeleuchtung bei einem Leistungsschalter Control of the display backlight when a circuit breaker |
| 04/02/2009 | CA2700973A1 Systems and methods for power swing and out-of-step detection using time stamped data |
| 04/01/2009 | EP2043216A1 Separator and overvoltage protection device |
| 04/01/2009 | EP1405382A4 Electric circuit providing selectable short circuit for instrumentation applications |
| 04/01/2009 | CN201215888Y Detection device for pressing board inputting state of electric protection device |
| 04/01/2009 | CN201215869Y High-voltage metering protecting cabinet for electric shovel |
| 04/01/2009 | CN201215851Y Full functional safe plug |
| 04/01/2009 | CN201215850Y Electric power protecting socket |
| 04/01/2009 | CN101399445A Electric power generation with magnetically geared machine |
| 04/01/2009 | CN101399442A Two-stage protection method for lithium ionic battery pack and circuit thereof |
| 04/01/2009 | CN101399436A Leakage arc protector for single sensor |
| 04/01/2009 | CN101399435A Automotive overcurrent protection |
| 04/01/2009 | CN101399418A Novel leakage protection socket |
| 04/01/2009 | CN100474727C Over-voltage protection circuit |
| 04/01/2009 | CN100474726C Electrical over/under voltage automatic disconnect apparatus and method |
| 04/01/2009 | CN100474725C Method and system for providing power to circuit breakers |
| 04/01/2009 | CN100474044C Power supply system and liquid crystal display device having the same |
| 04/01/2009 | CN100473993C Monitor of grounding system |
| 03/31/2009 | US7512818 Circuit for protecting motherboard |
| 03/31/2009 | US7512521 Intrinsically safe field maintenance tool with power islands |
| 03/31/2009 | US7511934 System and method for conditioning a power supply transmission for supply to a load circuit |
| 03/31/2009 | US7511933 System and method for protecting transient-suppressing elements against over-voltage conditions |
| 03/31/2009 | US7511931 Self protecting output stage |
| 03/31/2009 | US7511930 System and method for high voltage protection of powered devices |
| 03/31/2009 | US7511929 Switching power supply and semiconductor device used therefor |
| 03/26/2009 | WO2009036517A1 Overcurrent protection in a dimmer circuit |
| 03/26/2009 | WO2009036516A1 Dimmer circuit with overcurrent detection |
| 03/26/2009 | US20090080131 Device for protecting electronic circuits against faults |
| 03/26/2009 | US20090080130 Automotive overcurrent protection |
| 03/26/2009 | US20090080127 Technique for high-impedance ground fault detection at the common dc bus of multi-axis drives |
| 03/26/2009 | US20090079436 Method and apparatus for generalized ac and dc arc fault detection and protection |
| 03/26/2009 | US20090079420 Integrated electronic circuit |
| 03/26/2009 | US20090079273 Switching circuit apparatus having a series conduction path for servicing a load and switching method |
| 03/26/2009 | DE112005001167T5 Differenzstromdetektion Residual current detection |
| 03/26/2009 | DE102008045968A1 Stromversorgungs-Steuergerät A power supply control device |
| 03/25/2009 | EP2040348A2 Method and apparatus for generalized AC and DC arc fault detection and protection |
| 03/25/2009 | EP2040280A2 Modular communication plug-in module for an electronic trip unit |
| 03/25/2009 | EP1609163B1 Method for determining the moment of closure of a circuit breaker on a high voltage line |
| 03/25/2009 | CN201213222Y Rear stage working circuit protecting device for dual path electric power supplying system |
| 03/25/2009 | CN201213221Y Current limiting protector for household electrical appliance |
| 03/25/2009 | CN201213118Y Auxiliary circuit for electromagnetic AC pulse DC circuit breaker |
| 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 | CN101394086A Integrated control apparatus for DC distribution board |
| 03/25/2009 | CN101394077A Digital protective relay system |
| 03/25/2009 | CN101394076A Digital protective relay system |
| 03/25/2009 | CN101394075A Controller of low-voltage intelligent circuit breaker having on-line calibration function |
| 03/25/2009 | CN101393541A Nonvolatile memory system |
| 03/25/2009 | CN101393249A Combination overvoltage protector test equipment |
| 03/25/2009 | CN100472908C Double-magnetic control type creepage protective device |
| 03/25/2009 | CN100472633C Method for creating defect management information in an recording medium, and apparatus and medium based on said method |
| 03/24/2009 | US7509553 Inter-network and inter-protocol video conference privacy method, apparatus, and computer program product |
| 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 | US7508641 Method of forming an in-rush limiter and structure therefor |
| 03/24/2009 | US7508640 Method for fault handling in a converter circuit for wiring of three voltage levels |
| 03/24/2009 | US7508639 Input/output devices with robustness of ESD protection |
| 03/24/2009 | US7508638 Devices, systems, and methods for providing electrical power |
| 03/24/2009 | US7508636 Hybrid circuit breaker device |
| 03/24/2009 | US7508255 Power supply controller |
| 03/24/2009 | US7508186 Registration of lightning strike in a wind turbine |
| 03/19/2009 | WO2009035069A1 Charge controller of vehicle and the vehicle |
| 03/19/2009 | WO2009034417A2 Configuration tool and system for an intelligent electronic device (protective relay) |
| 03/19/2009 | WO2009008024A3 Automatic thermoelectric switch in direct current |
| 03/19/2009 | WO2009006623A3 Resettable short-circuit protection circuit |
| 03/19/2009 | WO2007086944A3 System, apparatus and method for compensating the sensitivity of a sequence element in a line current differential relay in a power system |
| 03/19/2009 | US20090073623 Apparatus and method for safety power control |
| 03/19/2009 | US20090073622 Method and system for bypassing a power cell of a power supply |
| 03/18/2009 | EP2035848A2 Detecting sub-system |
| 03/18/2009 | EP1075723B1 Closing device with a safety function |
| 03/18/2009 | CN201210764Y Electric power circuit for high-frequency non-electrode lamp |
| 03/18/2009 | CN201210721Y Novel micro-power consumption standby electricity economizer for television set |
| 03/18/2009 | CN201210615Y Selective leakage protective detection apparatus under coal mine |
| 03/18/2009 | CN201210614Y Residual current controlling and monitoring protector |
| 03/18/2009 | CN201210559Y Novel leakage protection socket |
| 03/18/2009 | CN201210472Y Leakage protection circuit breaker |
| 03/18/2009 | CN101390265A Current differential relay device, and its signal processing method, and transmission line protecting system |
| 03/18/2009 | CN101389856A Energy supply for a blade adjustment device pertaining to a wind energy installation |
| 03/18/2009 | CN101388543A Non-failure valve tripping criteria recognizing breaking point based on local measurement |
| 03/18/2009 | CN101388541A Automobile air conditioner control panel reference supply protecting equipment |
| 03/18/2009 | CN101388540A Leakage protection circuit having life end detection and display functions |
| 03/18/2009 | CN101388539A Protection control measurement system |
| 03/18/2009 | CN101388538A Stepped locking explosion-proof switch |
| 03/18/2009 | CN101388537A Method of fabricating case, piezoelectric oscillator, oscillator, electronic appliance, and radio clock |
| 03/18/2009 | CN101388295A Method and electrical switching apparatus including a number of accessories employing wireless communication |
| 03/18/2009 | CN100470984C Residual current breaker |
| 03/18/2009 | CN100470983C NMOS battery reverse protection |
| 03/18/2009 | CN100470982C Device for preventing unwanted operation of relay based on pulse transfer |
| 03/18/2009 | CN100470981C Relay simulated model utilizing method based on script description |
| 03/18/2009 | CN100470627C Voltage generating circuit |
| 03/17/2009 | US7505240 Overcurrent protection device for semiconductor element |
| 03/17/2009 | US7505237 Electrical safety outlet |