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