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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06/11/2008 | CN201072735Y Shunt release capable of detecting working condition of breaker |
06/11/2008 | CN101197480A Plug |
06/10/2008 | US7386686 Inlining with stack trace cache-based dynamic profiling |
06/10/2008 | US7385833 Snubber circuit for a power converter |
06/10/2008 | US7385797 Power problem diagnosis |
06/10/2008 | US7385795 Cordless power tool with a protected weak link element |
06/10/2008 | US7385793 Cascode active shunt gate oxide project during electrostatic discharge event |
06/10/2008 | US7385791 Apparatus and method for relay contact arc suppression |
06/10/2008 | US7385518 Compact fused disconnect switch |
06/10/2008 | US7385473 One-shot heat sensing electrical receptacle |
06/05/2008 | WO2008064946A1 A method and an apparatus for predicting the future behavior of currents in current paths |
06/05/2008 | WO2008064914A2 Calibrating a powered actuator |
06/05/2008 | US20080130187 Electrostatic shield and method of fabricating the same |
06/05/2008 | US20080130182 Power system fault characterization using transformed values |
06/05/2008 | US20080130181 Electric circuit with protection against overvoltages |
06/05/2008 | US20080130179 Method And Device For Fault Detection In Transformers Or Power Lines |
06/05/2008 | US20080130177 Circuit for clamping current in a charge pump |
06/05/2008 | US20080129523 Portable overvoltage sensor for sensing overvoltage of an electrical device during manufacturing |
06/05/2008 | DE102006055867A1 Integrierte Schaltung mit Strahlungsschutz Integrated circuit with radiation protection |
06/05/2008 | DE102004008026B4 Transformatoren-Schutzrelais Transformer protection relay |
06/04/2008 | EP1928068A1 System and method of detecting electrical faults in electrothermal valves |
06/04/2008 | EP1928007A1 A method and apparatus for predicting the future behavior of current paths |
06/04/2008 | EP1573539A4 Resource allocation aware queuing of requests for media resources |
06/04/2008 | CN201069855Y An energy-saving electricity-prevention socket for intelligent drinking machine |
06/04/2008 | CN201069854Y Current-prevention device for electric water heater with time division detection function |
06/04/2008 | CN201069853Y Current-prevention device for electric water heater with time division detection function |
06/04/2008 | CN201069852Y A computer protection device |
06/04/2008 | CN101194403A Method for avoiding undesired, measurement error-induced protective tripping within a protection system of HVDC transmission system |
06/04/2008 | CN101192751A Intelligent home electrical appliance and automatic power reclosing protection breaker |
06/04/2008 | CN101192747A No contact long life soft start energy-saving distribution box |
06/04/2008 | CN101192746A Neutral line disconnection protector |
06/04/2008 | CN101192731A Secure leakage protection jack with life termination detection function |
06/04/2008 | CN100392932C Method and device for overvoltage protection in dual-voltage vehicle electrical systems |
06/04/2008 | CN100392931C Method and filter for filtering electrical signal representing electric power system parameter |
06/04/2008 | CN100392550C Power-supply device and its control method |
06/04/2008 | CN100392421C Switch type magnetic field sensor for current overload protector |
06/04/2008 | CN100392410C Protective relay with synchronized phasor measurement capability for use in electric power systems |
06/03/2008 | US7383367 Progressive extended compression mask for dynamic trace |
06/03/2008 | US7382594 Method of forming an integrated voltage protection device and structure |
06/03/2008 | US7382593 Method of linearizing ESD capacitance |
05/29/2008 | WO2008061566A1 Power failure detection circuit |
05/29/2008 | WO2008061321A1 Power supply monitoring system |
05/29/2008 | WO2007112695A8 A protective circuit equipment for automatically monitoring the operating fault |
05/29/2008 | US20080126445 Method and system for reciprocal data backup |
05/29/2008 | US20080123239 Transient voltage surge suppressor |
05/29/2008 | US20080123237 Method and Circuit for Amplifying the Input Signals of an Electronic Overcurrent Release of Low-Voltage Circuit Breakers with a Selectable Amplification Factor |
05/29/2008 | US20080123236 Computer apparatus with over-voltage protection function |
05/29/2008 | US20080123235 Short circuit protection with reduced offset voltage |
05/29/2008 | US20080123234 Switchgear control apparatus |
05/29/2008 | US20080123233 System restart circuit and system restart method thereof |
05/29/2008 | US20080123227 Circuit interrupter with live ground detector |
05/29/2008 | US20080123226 Ground Fault Detector Interrupter |
05/29/2008 | CA2670391A1 Power supply monitoring system |
05/29/2008 | CA2669729A1 Adaptive relaying controlled by autonomous event detection |
05/29/2008 | CA2612842A1 Method and apparatus for detection of resistive fault conditions |
05/28/2008 | EP1925274A2 Numeric keypad simulated on touchscreen |
05/28/2008 | EP1924862A2 Arc fault circuit interrupter system |
05/28/2008 | CN201066791Y Building block high-voltage passive compensation device |
05/28/2008 | CN201066782Y An automatic correction device for three-phase AC incorrect phase |
05/28/2008 | CN201066781Y Electronic penetration protector |
05/28/2008 | CN201066780Y A field secure power device |
05/28/2008 | CN201066779Y A power current protection detection device |
05/28/2008 | CN201066744Y Computer network cable lightning protector |
05/28/2008 | CN201066743Y Novel current leakage protection jack |
05/28/2008 | CN201066671Y Monitoring residual current action protection relay |
05/28/2008 | CN201066660Y A permanent AC contactor control module for preventing from instantaneous voltage interruption |
05/28/2008 | CN101188353A Implementation device and method for multi-voltage monitoring and protection |
05/28/2008 | CN101188164A An instantaneous voltage restraint component and its making method |
05/28/2008 | CN101187956A A device and method for realizing simulated DC feedback failure of rail traffic |
05/28/2008 | CN101187687A High resistance earthing fault detection method based on transient traveling wave |
05/28/2008 | CN100391073C Method for realizing digital relay protection anti-time limit characteristic |
05/28/2008 | CN100391072C Apparatus for monitoring neutral wire and earth wire, and electric switch device containing the same |
05/28/2008 | CN100390987C Electrostatic discharge protection circuit |
05/28/2008 | CN100390552C Automatic tuning and small current grounding failure wire selection system of 8421 parallel reactor composite extinction coil |
05/27/2008 | US7380198 System and method for detecting write errors in a storage device |
05/27/2008 | US7380178 Method and apparatus of recording data in the optical recording medium |
05/27/2008 | US7380162 Method and apparatus of recording data in the optical recording medium |
05/27/2008 | US7380159 Method and apparatus of recording data in the optical recording medium |
05/27/2008 | US7380054 Storage of fault and position data in nonvolatile memory on system components |
05/27/2008 | US7379310 Over-voltage protection circuit for a switched mode power supply |
05/27/2008 | US7379284 Switching control circuit and self-excited DC-DC converter |
05/27/2008 | US7379283 ESD protection circuit with a low snapback voltage that is protected from fast non-ESD voltage spikes and ripples |
05/27/2008 | US7378927 Circuit breaker with independent trip and reset lockout |
05/27/2008 | US7378761 Control circuit and a method for electrically connecting a load to a power source |
05/22/2008 | WO2008061035A1 Power filter |
05/22/2008 | US20080116752 Disconnection detecting circuit |
05/21/2008 | EP1455275B1 Data restoring apparatus using journal data and identification information |
05/21/2008 | CN201063461Y Power-off alarm energy-accumulating circuit |
05/21/2008 | CN201063435Y Mine high voltage intelligent switch protector |
05/21/2008 | CN201063434Y Novel electricity-limiting device |
05/21/2008 | CN101183901A Method of implementing transmission equipment power-off alarm and alarm recovery |
05/21/2008 | CN101183782A Relay system in substation and pcm current differential relay system |
05/21/2008 | CN101183781A Shunt inductance current-limiting breaker |
05/21/2008 | CN101182956A Intelligent type omnibearing protection, auto-reclosing, multipurpose flowing water type electric water heater |
05/21/2008 | CN100389529C Surge protector module containing voltage-dependent resistor disc |
05/21/2008 | CN100389527C Earthing compensation process for mine low-voltage electricity grid selective leakage protection system |
05/20/2008 | US7376079 Backup cell controller |
05/20/2008 | US7375942 Flexible secondary overcurrent protection |
05/20/2008 | US7375941 Protective relay capable of protection applications without protection settings |
05/20/2008 | US7375940 Transformer interface for preventing EMI-based current imbalances from falsely triggering ground fault interrupt |