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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12/19/2001 | CN1076531C Electronic protection system and circuit comprising said system |
12/19/2001 | CN1076530C Intelligent controller for circuit breaker |
12/19/2001 | CA2350984A1 High electrical power current limiter being useful in electrical power system |
12/18/2001 | US6331763 Devices and methods for protection of rechargeable elements |
12/18/2001 | CA2066515C Ground fault interruptor circuit with electronic latch |
12/18/2001 | CA2023394C Electronic circuit interrupter with combined keypad and display |
12/13/2001 | WO2001095453A2 Fault current and differential current detection system capable of preventing spurious triggering of a protection system due to transient interference pulses |
12/13/2001 | WO2001095452A1 Arc-fault detecting circuit breaker system |
12/13/2001 | WO2001095451A2 Software-controlled evaluation of fault currents for protection and monitoring systems |
12/13/2001 | DE10125529A1 Fault current protection unit for protection against fault currents in a voltage supply mains, has first protection conductor connected to mains filter and second protection conductor for contact protection of load |
12/12/2001 | EP1162712A2 Power supply system for a vehicle with a low voltage distribution network and a high voltage distribution network |
12/12/2001 | EP0928511B1 Circuit arrangement for detection of current in an electric conductor to control electronically controllable tripping devices |
12/12/2001 | CN2465374Y Multi-function safety electric protector |
12/12/2001 | CN2465373Y Phase loss and leakage protector |
12/12/2001 | CN1326604A Method and device for detecting disconnection of fuse |
12/12/2001 | CN1076132C Overcurrent protection circuit |
12/12/2001 | CN1076118C Electric switch with current protection for remote station and portable local device interface |
12/11/2001 | US6330687 System and method to maintain performance among N single raid systems during non-fault conditions while sharing multiple storage devices during conditions of a faulty host computer or faulty storage array controller |
12/11/2001 | US6330620 Arrayed I/O unit close decision method and apparatus, and medium containing an arrayed I/O unit close decision program |
12/11/2001 | US6330142 Trip device with a plurality of means for setting the protection parameters |
12/11/2001 | US6330141 Electronic protective relay with variable and fixed delay tally time of current protection |
12/06/2001 | DE10124482A1 Data file server for performing data-file transaction processes as a reaction to data file transaction requests by clients, uses first transaction protocol for storage of higher-authority data transaction process information |
12/06/2001 | DE10124196A1 Equipment for fault protection with self monitoring system monitoring main protection relay |
12/05/2001 | EP1159627A1 Reach-measurement method for power transmission lines |
12/05/2001 | CN2463999Y Overvoltage and overcurrent protection and warning device for main distributing frame |
12/05/2001 | CN2463981Y Alarm socket with earth leakage circuit breaker |
12/05/2001 | CN2463947Y Earth leakage protective device adapted for high-power equipment |
12/05/2001 | CN2463837Y Earth leakage detector |
12/05/2001 | CN1325557A Monitoring circuit for monitoring a voltage |
12/04/2001 | US6327671 Delta compressed asynchronous remote copy |
12/04/2001 | US6327124 Low current ground fault relay |
12/04/2001 | US6326598 Non-intrusive fault location system for an overheat detection system |
11/29/2001 | WO2001091265A2 Fault tolerant motor drive arrangement with independent phase connections and monitoring system |
11/29/2001 | DE10120190A1 Stromerkennungsschalter und ein Gerät, das diesen umfaßt Current detection switch and a device comprising these |
11/28/2001 | EP1158642A1 System for detecting the end position of a mobile part by detecting the blocking current |
11/28/2001 | EP0958642B1 Circuitry for operating an electronic tripping device in a circuit breaker |
11/28/2001 | CN1075664C Electromechanical switching device and arrangement with several such devices |
11/27/2001 | US6324043 Residual current detector with fail safe lockout device |
11/27/2001 | US6324040 Sensor supply open load detector circuit |
11/27/2001 | US6324039 Circuit for protection against slow circuit breaker closure during synchronization of a generator and an associated electrical system |
11/27/2001 | US6323611 Circuit for operating an electric motor |
11/27/2001 | CA2143364C Field ground fault detector and field ground fault relay for detecting ground fault corresponding to dc component extracted from ground fault current |
11/22/2001 | WO2001089053A1 Semiconductor component |
11/22/2001 | WO2001089052A1 Circuit breaker remote service system |
11/22/2001 | DE10023950A1 Semiconductor component with power switch connectable to load |
11/21/2001 | EP1155919A2 Electric power supply network, especially for a vehicule, and short-circuit detection process in this network |
11/21/2001 | EP1155489A1 Current monitors with independently adjustable dual level current thresholds |
11/21/2001 | EP1155487A1 Circuit breaker |
11/21/2001 | CN2461190Y Anti-lighting and over-voltage protection device for power and closed circuit TV. |
11/20/2001 | US6320731 Fault tolerant motor drive arrangement with independent phase connections and monitoring system |
11/20/2001 | US6320283 Power actuation and switching module |
11/20/2001 | US6320275 Power-feed control apparatus provided in a vehicle |
11/15/2001 | WO2001086776A1 Under- and/or overvoltage release |
11/15/2001 | WO2001086775A1 Help desk systems and methods for use with communications networks |
11/15/2001 | WO2001086683A1 Arc fault circuit interrupter and circuit breaker having the same |
11/14/2001 | EP1154539A1 Fault current breaker with summation transformer |
11/14/2001 | EP1154538A1 Under- and/or overvoltage release device |
11/14/2001 | EP1153464A1 Lightning arrestor device for high power electric installations |
11/14/2001 | EP1153379A1 Modular power quality monitoring device |
11/14/2001 | EP0925626B1 Method and arrangement for disconnecting consumers |
11/14/2001 | CN2459809Y Intelligent controller for low voltage complete distribution equipment |
11/14/2001 | CN1322258A Device with selected current level for active protection against corrosion of water heater or similar appliances |
11/14/2001 | CN1322048A Overvoltage protection device of universal serial bus concentrator |
11/14/2001 | CN1322047A Safety method without fuse and its device |
11/14/2001 | CN1322046A High current protection device suitable for universal serial bus concentrator |
11/14/2001 | CN1074863C 电子继电器 Electronic Relays |
11/13/2001 | US6316896 Man machine interface for an A-C motor bypass |
11/08/2001 | WO2001084687A2 Sensitive ground fault detection system for use in compensated electric power distribution networks |
11/08/2001 | WO2001029948A8 Improved restraint-type differential relay |
11/08/2001 | US20010038518 Contol circuit for semiconductor device with overheat protecting function |
11/08/2001 | DE10020076A1 Calibrating and parameterizing circuit breakers, involves fitting integrated electronics with data interface in addition to operating function to enable determination of design parameters |
11/07/2001 | EP1151517A1 Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
11/07/2001 | CN2458801Y Protector for soldering contact of current/voltage type ac contactor |
11/07/2001 | CN2458798Y Pressure circuit beaking protecting and warning device |
11/07/2001 | CN1321214A Method for limiting closing force of movable components |
11/07/2001 | CN1320991A Solid state protection circuit of electrical arrangement |
11/07/2001 | CN1320990A Paging-type remote-controlled electric leakage protector |
11/06/2001 | US6314526 Resource group quorum scheme for highly scalable and highly available cluster system management |
11/06/2001 | US6313752 System for displaying dynamic on-line operating conditions of an interconnected power transmission network |
11/06/2001 | US6313723 Remote controllable circuit breakers with positive temperature coefficient resistivity (PTC) elements |
11/06/2001 | US6313690 Semiconductor switching device with leakage current detecting junction |
11/06/2001 | US6313642 Apparatus and method for testing an arcing fault detection system |
11/06/2001 | US6313641 Method and system for detecting arcing faults and testing such system |
11/06/2001 | US6313639 Method and configuration for identifying short circuits in low-voltage networks |
11/01/2001 | WO2001082441A1 Residual-current circuit breaker and a method for testing the reliability performance of a residual-current circuit breaker |
11/01/2001 | WO2001082440A1 Undervoltage release |
11/01/2001 | WO2001082439A1 A circuit for the protection and supply of consuming circuits |
11/01/2001 | WO2001082437A2 Method and apparatus for detecting ground fault current |
11/01/2001 | US20010037371 Mirroring network data to establish virtual storage area network |
11/01/2001 | US20010036049 Circuit interrupting device with reverse wiring protection |
11/01/2001 | US20010036048 Ground fault interrupter |
11/01/2001 | US20010036047 AFCI which detects and interrupts line side arcing |
11/01/2001 | US20010035727 Force reflection system |
10/31/2001 | EP1150412A1 Earth fault circuit breaker and method for testing the proper operation of an earth fault circuit breaker |
10/31/2001 | EP1150411A1 Undervoltage release device |
10/31/2001 | EP1150410A2 Solid state protection circuit for electrical apparatus |
10/31/2001 | EP1149450A1 An electric device |
10/31/2001 | DE10058028A1 Phasensteuerungs-Schaltervorrichtung Phase control switch device |
10/31/2001 | CN2457780Y Hand-held multifunction power source |
10/31/2001 | CN2457772Y Over temperature alarm for power supply equipment |