| 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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| 01/15/2009 | WO2009008871A1 Faulted phase decision method between current and voltage based delta phase selectors |
| 01/15/2009 | WO2009008741A1 Layered structure connection and assembly |
| 01/15/2009 | WO2009008024A2 Automatic thermoelectric switch in direct current |
| 01/15/2009 | WO2009007591A2 Method and system for managing electrical power supply outages on board an aircraft |
| 01/15/2009 | US20090015978 Non-inductive silicon transient voltage suppressor |
| 01/15/2009 | US20090015977 Line Protection Load Switch For Portable Device |
| 01/15/2009 | US20090015976 Power feed system for vehicle |
| 01/15/2009 | US20090015975 Overvoltage Protection Apparatus and an Associated Protection Circuit |
| 01/15/2009 | US20090015974 Esd detection circuit |
| 01/15/2009 | US20090015973 Increased Voltage Vehicle Electrical System |
| 01/15/2009 | US20090015356 Current Inductive Timer Socket |
| 01/15/2009 | DE112007000585T5 Unterdrücken elektrostatischer Entladung, die mit Radiofrequenz-Identifikations Tags zusammenhängt Suppressing electrostatic discharge, which is related to radio frequency identification tags |
| 01/15/2009 | DE112007000473T5 Stromdifferential-Relaisvorrichtung, Signalverarbeitungsverfahren hierfür und Energieübertragungsleitungsschutzsystem Current differential relay device, signal processing method therefor and power transmission line protection system |
| 01/15/2009 | DE102007039915A1 Printing machine i.e. rotary printing machine, stopping method for use during network failure, involves detecting network failure of power supply network, and separating printing machine from electrical network during failure detection |
| 01/15/2009 | DE102007032811A1 Verfahren zum Zuordnen eines Fehlerstroms zu einer der drei Phasenleitungen eines Drei-Phasen-Systems sowie Fehlerstromschutzschalter A method for allocating a leakage current to one of the three phase lines of a three-phase system and earth leakage circuit breaker |
| 01/15/2009 | DE102007031342A1 Method e.g. for gainig information about progression of error current, involves inserting sum current transformer at power supply and power dissipation which run primary and secondary |
| 01/15/2009 | DE102007030996A1 Fehlerstromschutzschalter und Verfahren zum Bauen eiens Fehlerstromschutzschalters Residual current circuit breakers and method for building eiens residual current circuit breaker |
| 01/15/2009 | CA2692300A1 Method and system for managing electrical power supply outages on board an aircraft |
| 01/14/2009 | EP2015419A2 Method for assigning a residual current to one of the three phase currents of a three-phase system and residual current protection switch |
| 01/14/2009 | CN201181907Y Self-adapting power supply for coal mine |
| 01/14/2009 | CN201181848Y Filter device of intelligent dynamic reactive-load compensation thyristor |
| 01/14/2009 | CN201181835Y Multifunctional earth-leakage protective equipment |
| 01/14/2009 | CN201181834Y Low-voltage over-voltage protection device |
| 01/14/2009 | CN201181833Y Intelligent protector of air breaker |
| 01/14/2009 | CN201181681Y Trip mechanism and creepage protecting socket with the same |
| 01/14/2009 | CN201181511Y Electrical fire disaster alarming control device for ancient building |
| 01/14/2009 | CN101346866A Protecting apparatus, and protecting method, signal processing method and electrical quantity detecting method employed by the protecting apparatus |
| 01/14/2009 | CN101346865A Excess voltage protection circuit, method of protecting a circuit from excess voltage, and semiconductor apparatus having the excess voltage protection ciruit |
| 01/14/2009 | CN101346864A Linear low capacitance overvoltage protection circuit |
| 01/14/2009 | CN101346863A Protection unit for an ac/dc low-voltage power supply line |
| 01/14/2009 | CN101345410A Design method for judging out-of-step separation based on application compensating impedance principle |
| 01/14/2009 | CN101345409A Design method for judging out-of-step separation based on in-place active/idle work variable quantity |
| 01/14/2009 | CN101345408A Method for assigning a residual current to one of the three phase currents of a three-phase system and residual current protection switch |
| 01/14/2009 | CN101345407A Creepage breaker |
| 01/14/2009 | CN101345406A Collocation method for 12 fluctuation bridge neutral earthing protection of back-to-back DC power transmission system |
| 01/14/2009 | CN101345405A Protection circuit of power switch device |
| 01/14/2009 | CN101345375A Novel creepage protecting socket |
| 01/14/2009 | CN101345173A Group insulation module for a switching gear assembly and switching gear assembly with such a group insulation module |
| 01/14/2009 | CN101345171A Ground fault open circuit temperature controller of self-magnet compensation permanent magnet switch |
| 01/14/2009 | CN100452632C Power supplier with over-low-voltage protecting system and over-low-voltage protection |
| 01/14/2009 | CN100452608C Bridge type short circuit fault current limiter with single self-on-off switching tube |
| 01/14/2009 | CN100452607C Protection circuit |
| 01/14/2009 | CN100452604C Energy position tandem protection method and device for extra-high voltage transmission line |
| 01/14/2009 | CN100452603C Inspecting circuit and method for switching power-supply outputting voltage |
| 01/14/2009 | CN100452599C Protection method for detecting power module outlet internal short-circuit and detection protecting circuit |
| 01/14/2009 | CN100452598C Protection circuit for fault electric arc, and method for detecting fault electric arc |
| 01/14/2009 | CN100452597C Earthing failure creepage protector |
| 01/13/2009 | US7477502 Method and system for providing fault protection in a power supply system |
| 01/13/2009 | US7477501 System and method of mounting current transducers in proximity to circuit breakers |
| 01/13/2009 | US7477498 Method and protective circuit against overvoltage |
| 01/13/2009 | US7476948 Microminiature moving device and method of making the same |
| 01/13/2009 | US7476561 Method of making microminiature moving device |
| 01/08/2009 | WO2009006623A2 Resettable short-circuit protection circuit |
| 01/08/2009 | WO2009005374A1 A residual current device mechanism and module |
| 01/08/2009 | US20090009919 Resettable short-circuit protection circuit |
| 01/08/2009 | US20090009916 Electrostatic discharge protection device for mixed voltage interface |
| 01/08/2009 | US20090009138 Over-voltage protected battery charger with bypass |
| 01/08/2009 | US20090008996 Modular dc-dc standby voltage converter having programmable sequencing |
| 01/08/2009 | US20090008229 Contact system for a short-circuiting device in a medium-voltage or high-voltage switchboard plant |
| 01/08/2009 | DE202008013955U1 Hilfsleistungsversorgungssystem Auxiliary power supply system |
| 01/07/2009 | EP2012403A2 Residual current protection switch and method for constructing same |
| 01/07/2009 | EP2012402A2 Improvements in or relating to current differential protection relays |
| 01/07/2009 | EP2012133A1 Directional fault current indicator |
| 01/07/2009 | EP2011207A1 Residual current device having voltage dependent and voltage independent modes of operation |
| 01/07/2009 | EP2011128A1 Process for the dimensioning of an arresting element cut-off switch offor a surge absorberarrester |
| 01/07/2009 | EP0986852B1 Overcurrent protection circuit |
| 01/07/2009 | CN201178500Y Electric power for LED illumination |
| 01/07/2009 | CN201178498Y Surge protection circuit for electromagentic furnace |
| 01/07/2009 | CN201178319Y Portable apparatus having charging protection function |
| 01/07/2009 | CN201178316Y Explosion-proof PDA and intrinsic safe battery thereof |
| 01/07/2009 | CN201178309Y Serial type voltage disturbing apparatus |
| 01/07/2009 | CN201178304Y Television set having over-current protection for USB port |
| 01/07/2009 | CN201178297Y Motor driving protection circuit for household electrical appliance |
| 01/07/2009 | CN201178296Y Residual current actuating apparatus having earthing protection function |
| 01/07/2009 | CN201178295Y Current protection control apparatus |
| 01/07/2009 | CN201178294Y Automation apparatus of composite distribution network |
| 01/07/2009 | CN201178293Y Mainboard of microcomputer protection equipment having three CPUs |
| 01/07/2009 | CN201178245Y Switch cabinet operating controller |
| 01/07/2009 | CN201178218Y Full-functional tripolar leakage protecting plug |
| 01/07/2009 | CN201178216Y Leakage protecting plug |
| 01/07/2009 | CN201177768Y Thermostatic control apparatus for electric water heater |
| 01/07/2009 | CN201177244Y Lamp switch attached with foldback |
| 01/07/2009 | CN101340101A Timing protection circuit for battery charging |
| 01/07/2009 | CN101340083A Bearing current measuring and protecting apparatus of three-phase cage type induction motor |
| 01/07/2009 | CN101340081A Electric protective device and method for electromagnetic forming machine |
| 01/07/2009 | CN101340079A Residual current protection switch and method for constructing same |
| 01/07/2009 | CN101340078A Improvements in or relating to current differential protection relays |
| 01/07/2009 | CN101340077A Power-off protection circuit of optical display television |
| 01/07/2009 | CN101340076A Dual-window voltage comparator wire and delay converting circuit |
| 01/07/2009 | CN101340075A Automatic switch control system for three-phase transmission line and electricity power control method thereof |
| 01/07/2009 | CN100449900C High-voltage ac. controllable parallel-connection reactor high-differential protection method |
| 01/07/2009 | CN100449899C High-voltage AC. controllable parallel-connection reactor control winding zero-sequence protection method |
| 01/07/2009 | CN100449898C Overvoltage protector for electric network |
| 01/06/2009 | US7475301 Increment/decrement circuit for performance counter |
| 01/06/2009 | US7475172 Progressive extended compression mask for dynamic trace |
| 01/06/2009 | CA2452352C System and method for calibration of data in an electric power monitoring system |
| 01/01/2009 | US20090002909 Systems and Methods for Isolating Power Surges |
| 01/01/2009 | US20090002907 Modular parallel protection circuit |
| 01/01/2009 | US20090002905 Over-Voltage and Under Voltage Protection Circuit |
| 01/01/2009 | US20090002903 Power Supply Device, Electrically-Driven Vehicle Incorporating Power Supply Device, and Method of Controlling Power Supply Device |