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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10/15/2003 | EP1353427A1 Redondant transmission of protective commands for remote-trip-devices |
10/15/2003 | EP1352335A1 Method and system for implementing ospf redundancy |
10/15/2003 | CN2580674Y Electronic frequency conversion power source for three-phase input electric chain saw |
10/15/2003 | CN2580651Y Solid circuit protection unit for main distributing frame |
10/15/2003 | CN2580648Y Neutral conductor protector |
10/15/2003 | CN2580633Y Anti-thunder power socket |
10/15/2003 | CN1124490C Layout, method and current measuring device for measuring a current in a conductor |
10/14/2003 | US6633955 Four way support for dynamic mirror service policy |
10/14/2003 | US6633824 Direct current electrical system arc detection apparatus and method |
10/14/2003 | US6633475 High side supply shut down circuit |
10/14/2003 | US6633472 Electric outlet remote control and power protection circuit |
10/14/2003 | US6633471 Overcurrent protection circuit, electric leakage protection circuit for an electric apparatus |
10/14/2003 | US6633467 AFCI which detects and interrupts line side arcing |
10/12/2003 | CA2381605A1 Dynamic generation of program execution trace files in a standard markup language |
10/12/2003 | CA2381596A1 Generating and managing test plans for testing computer software |
10/09/2003 | US20030191983 Loosely coupled mass storage computer cluster |
10/09/2003 | US20030191981 Method and apparatus of recording data in the optical recording medium |
10/09/2003 | US20030191979 Method and apparatus for restoring a device to a default state |
10/09/2003 | US20030191957 Distributed computer virus detection and scanning |
10/09/2003 | US20030189899 Redundant transmission of protection commands between remote tripping devices |
10/09/2003 | US20030189805 Apparatus for protection of electronic circuits |
10/09/2003 | US20030189804 Ground fault circuit interrupter |
10/09/2003 | US20030189453 Radio frequency clamping circuit |
10/09/2003 | DE4124321C2 Anordnung zur Ableitung von Überspannungen Arrangement for the disposal of overvoltages |
10/09/2003 | DE20213758U1 Electric motor drive circuit for actuating device in motor vehicle, uses e.g. resistor and capacitor to generate direction control signal for switching element to control current direction of motor |
10/09/2003 | CA2424090A1 Circuit breaker for detecting overload |
10/08/2003 | EP1351127A2 Method and apparatus for restoring a device to a default state |
10/08/2003 | EP1243060B1 Method and device for overvoltage protection in dual-voltage vehicle electrical systems |
10/08/2003 | CN2579035Y One touch controlled socket for computer power supply |
10/08/2003 | CN1447487A Safety devices for electrical appliances |
10/07/2003 | US6631065 Overcurrent interrupting device |
10/07/2003 | US6631064 Apparatus and method for providing overcurrent protection for switch-mode power supplies |
10/07/2003 | US6631063 System for monitoring electrical circuit operation |
10/07/2003 | US6631059 ESD protection circuit |
10/07/2003 | US6630748 Load control apparatus and method having single temperature detector |
10/07/2003 | CA2163181C Apparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling technique |
10/02/2003 | US20030188231 Method for runtime code integrity validation using code block checksums |
10/02/2003 | US20030187967 Method and apparatus to estimate downtime and cost of downtime in an information technology infrastructure |
10/02/2003 | US20030187520 Method and apparatus for circuit breaker node software architecture |
10/02/2003 | US20030184939 Electric power system relay and on-line method of testing same |
10/02/2003 | US20030184932 Electrical ground isolation and secondary failure reduction detection and isolation |
10/02/2003 | US20030183838 Solid-state DC circuit breaker |
10/01/2003 | EP1349252A2 Lighting unit adapter for use as short circuit protection or dimmer |
10/01/2003 | EP1349251A2 Semiconductor switching device with a multi-source power FET having a sense current path allowing a predetermined number of reconnection attempts before shutdown |
10/01/2003 | EP1290706B1 Switch, especially a coding switch |
10/01/2003 | EP1203388B1 Timed tripping circuit for an electromechanical switching device |
10/01/2003 | EP0861514B1 Jamming detection device for electrical drives |
10/01/2003 | CN1123105C Electronic control device for over-vurrent protection |
09/30/2003 | US6629263 Fault tolerant network element for a common channel signaling (CCS) system |
09/30/2003 | US6629021 Techniques for detecting ground failures in bathing installations |
09/30/2003 | US6628496 Protection system for an electricity network having a data transmission radio link |
09/30/2003 | US6628488 Electrostatic discharge protection circuit |
09/30/2003 | US6628486 Fault detection device with line-load miswire protection |
09/30/2003 | US6628485 Apparatus for limiting an electrical current |
09/25/2003 | WO2003079511A1 Circuit protection system |
09/25/2003 | WO2003079388A1 Circuit breaker having fault-current cutoff |
09/25/2003 | US20030182601 System and method for integrating hardware switching operations into test executive software |
09/25/2003 | US20030179528 Methods and devices for optimizing power consumption of trip units containing microprocessors |
09/25/2003 | US20030179526 Circuit breaker voltage sensing module |
09/25/2003 | US20030178982 Method and apparatus for determining frequency of an alternating current signal of an electric power system |
09/24/2003 | EP1346453A1 Substation control system |
09/24/2003 | EP1346450A1 Low-voltage electronic residual current circuit breaker |
09/24/2003 | EP1345795A1 Intelligent fuse box for the power distribution system of a vehicle |
09/24/2003 | CN1444788A Ground fault interrupter |
09/23/2003 | US6625761 Fault tolerant USB method and apparatus |
09/23/2003 | US6625759 Method and apparatus for verifying the fine-grained correctness of a behavioral model of a central processor unit |
09/23/2003 | US6625750 Hardware and software failover services for a file server |
09/23/2003 | US6625551 Fault current and differential current detection system capable of preventing spurious triggering of a protection system due to transient interference pulses |
09/23/2003 | US6625550 Arc fault detection for aircraft |
09/23/2003 | US6624993 Adjustable direct current and pulsed circuit fault current limiter |
09/23/2003 | CA2168838C Electrical switches with current protection interfaced with a remote station and a portable local unit |
09/23/2003 | CA2165929C Circuit interrupter providing protection and waveform capture for harmonic analysis |
09/18/2003 | WO2003077396A1 Circuit breaker comprising an electronic trigger and a bypass switch |
09/18/2003 | US20030177422 Data transfer and management system |
09/18/2003 | US20030177421 Facilitating the use of aliases during the debugging of applications |
09/18/2003 | US20030177420 Generating a common symbol table for symbols of independent applications |
09/18/2003 | US20030177419 Facilitating the debugging of applications by employing user defined or redefined symbols |
09/18/2003 | US20030177417 System and method for remote performance analysis and optimization of computer systems |
09/18/2003 | US20030177414 Model for performance tuning applications |
09/18/2003 | US20030177413 Versioning and replaying performance tuning projects |
09/18/2003 | US20030174453 Power protection |
09/18/2003 | US20030174449 Power tools |
09/18/2003 | DE20311394U1 Electrical protective circuit for electric equipment in house or vehicle has switch contact and manually released test switching circuit fitted inside housing |
09/17/2003 | EP1344291A1 An improved digital protection and control device and method thereof |
09/17/2003 | EP1252695B1 Protective device for an electric consumer |
09/17/2003 | EP1093681B1 Solid state overload relay |
09/17/2003 | CN2574208Y Integrative earth leakage protector |
09/17/2003 | CN1443388A System for overvoltage protection |
09/17/2003 | CN1443316A Protection zone selection system in relay based on microprocessor of electric power system |
09/17/2003 | CN1442941A Truelike detection of transformer station transformer |
09/16/2003 | US6621677 Method and system for series fault protection |
09/16/2003 | US6621672 Circuit breaker having analog override |
09/16/2003 | US6621670 Ground fault protection circuit for discharge tube lighting circuit |
09/16/2003 | US6621669 Arc fault receptacle with a feed-through connection |
09/16/2003 | US6621388 Lockout mechanism for use with ground and arc fault circuit interrupters |
09/16/2003 | CA2162350C Circuit breaker using bimetal of thermal-magnetic trip to sense current |
09/11/2003 | US20030172324 Bitstream generation tools for bitstream management system |
09/11/2003 | US20030171884 Arrangements to detect and respond to disturbances in electrical power systems |
09/11/2003 | US20030169548 Breaker failure annunciator system |
09/11/2003 | US20030169546 Circuit for the protection and supply of consuming circuits |