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)
12/2002
12/05/2002US20020181175 Digital fault interrupter with self-testing capabilities
12/05/2002US20020181174 Data acquisition system for a circuit breaker
12/05/2002US20020180444 Residual-current circuit breaker and a method for testing the reliability perfromance of a residual-current circuit breaker
12/05/2002US20020180390 Method and system for detecting an object in the path of an automotive window utilizing a system equation
12/05/2002US20020180389 Method for monitoring and influencing an electric motor
12/05/2002DE10149458C1 Conductor network, especially 42 Volt on-board vehicle electrical system, has supply line formed by 2 parallel conducting lines, each containing fuse, to protect network against serial spark
12/05/2002DE10124692A1 Device for monitoring an areal heating element comprises an electrically insulated heating conductor in the body of the heating element and an at least partially conductive outer layer
12/04/2002EP1262007A1 Permanent magnet induced electric machine and method for operating such a machine
12/04/2002CN2524422Y Improved replacing power supplier
12/04/2002CN2524412Y Lightningproof and overvoltage protector for TV set
12/04/2002CN1383248A Power supply equipment with parallelly connected two PC power supplies
12/04/2002CN1383246A Statistical balance method of transverter measurement for differential bus protection
12/04/2002CN1383245A Converter protector
12/04/2002CN1383243A Electrical packaged piece integrated working capacitor dynamo protector and dynamo starter
12/03/2002US6490141 Power distribution system
11/2002
11/28/2002WO2002095892A1 Protecting device for electrical consumer
11/28/2002US20020178396 Systems and methods for providing automated diagnostic services for a cluster computer system
11/27/2002EP1260820A1 Current detector for surge arrester diagnostic and overvoltage assessment in high voltage substations
11/27/2002CN2523089Y Protection device from low-voltage feedback to high-voltage execution for movable converting station
11/27/2002CN1381934A Method and equipment for debugging hidden line-breaking accident of power transmission line
11/26/2002US6487057 Ground fault current interrupter/arc fault current interrupter circuit breaker with fail safe mechanism
11/21/2002WO2002093710A1 Relaying method for protecting a transformer using a difference of current
11/21/2002WO2002093709A1 Bypass circuit for the overcurrent trip of a low-voltage power circuit breaker
11/21/2002DE10125051A1 By-pass circuit for electronic excess current trigger for low voltage switch has current converters with sufficient output power to actuate trigger magnet when short circuit current flowing
11/21/2002DE10120751A1 Überstromauslösevorrichtung mit Erfassung der Kurvenform eines zu überwachenden Stromes Overcurrent trip device with detection of the waveform of the monitored current
11/21/2002DE10120570A1 Fehlerspannungs-Schutzeinrichtung Error surge protector
11/20/2002EP1258793A1 Power supply device, transistor driving method, recording medium
11/20/2002CN2521808Y Laser power-off water-deficient and overcurrent protection controller
11/20/2002CN2521807Y Electronic control alarming device for residual current protection
11/20/2002CN2521806Y Zero line voltage-offset automatic breaker
11/20/2002CN2521805Y Domestic electric appliances power source remote-control cut-off energy-saving controller
11/20/2002CN2521781Y Electric power socket board
11/20/2002CN1380235A Fault forecasting method of power transmission system for processing industrial film
11/20/2002CN1094671C Multifunctional socket with safety automatic controller
11/19/2002US6484275 System and method for interfacing data with a test access port of a processor
11/19/2002US6483686 Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse
11/19/2002US6483681 Fault-current protective switchgear
11/19/2002US6483680 Magnetizing inrush restraint method and relay for protection of power transformers
11/19/2002US6482048 Automated assembly methods for miniature circuit breakers with wire attachment clamps
11/14/2002US20020170014 Apparatus and method to facilitate self-correcting memory
11/14/2002US20020169996 Method and apparatus for providing write recovery of faulty data in a non-redundant raid system
11/14/2002US20020167229 Method of handling faults and preventing damage on machine tools and production machines, and also robots
11/14/2002DE10120189A1 Protecting switching device with electromagnetic triggering has excess current trigger with magnetic windings that interacts with switch lock to bring it from contact position to open position
11/14/2002CA2445633A1 Protection of electrical power lines
11/12/2002US6480975 ECC mechanism for set associative cache array
11/12/2002US6480974 Method for use of bus parking states to communicate diagnostic information
11/12/2002US6480368 Monitoring circuit for monitoring a voltage
11/07/2002WO2002089284A1 Monitoring apparatus
11/07/2002WO2002089133A2 Data integrity error handling in a redundant storage array
11/07/2002US20020163820 Power converter apparatus using power device
11/07/2002DE10117372A1 Schutzeinrichtung, Schutzanordnung und Schutzverfahren für eine elektrische Leitung Protection device, the protection arrangement, and protection method for an electric line
11/07/2002CA2445152A1 Monitoring apparatus
11/06/2002EP0955899A4 Foot controller for microsurgical system
11/06/2002CN2520063Y Thunder protector for electric net
11/06/2002CN1378087A 数字电流差分系统 Digital current differential system
11/05/2002US6477069 Circuit for detecting and inadmissibly high current in an output stage
11/05/2002US6477021 Blocking/inhibiting operation in an arc fault detection system
11/05/2002US6476667 Adjustable current limiting/sensing circuitry and method
10/2002
10/31/2002WO2002087049A1 Overcurrent trip device comprising the detection of the waveform of a current to be monitored
10/31/2002WO2002086270A2 Method and apparatus for facilitating control of a movable barrier operator
10/31/2002US20020161485 Method for generating a trigger signal according to the current differential protection principle and current differential protection arrangement
10/31/2002US20020159211 Protective relay apparatus
10/31/2002US20020159209 Trace fuse
10/31/2002US20020158594 Electric-motor drive
10/31/2002US20020157313 Device for estimating safety control area for power windows based upon a fully open position
10/31/2002DE10120640A1 Protection device for current supply system e.g. for drive-by-wire function in vehicle, evaluates sampled current for operation of protection switch and/or current limiting device
10/30/2002EP1253693A1 Faul voltage-protective device
10/30/2002EP1252696A1 An improved electronic earth leakage current device
10/30/2002EP1252695A1 Protective device for an electric consumer
10/30/2002CN2519516Y Power saving circuit device capable of immediate start and automatic turn-off
10/30/2002CN2519515Y Three-phase power system remote protective device
10/30/2002CN2519514Y Power supply monitor
10/30/2002CN2519488Y Powercut self locking power supply socket
10/30/2002CN2519487Y 电源开关插座 Power switch socket
10/30/2002CN1377113A Electronic controller of under-voltage tripping device
10/30/2002CN1377112A Power supply module for communication
10/29/2002US6473723 Mimic high pass filter in a protective relay
10/29/2002US6473282 Latch-up protection circuit for integrated circuits biased with multiple power supplies and its method
10/29/2002US6473281 Automatic protection device with ground fault annunciation
10/29/2002US6472910 Electrical load driving device
10/29/2002US6472882 Fail-safe electronic circuit breaker
10/24/2002US20020157035 Systems and methods for providing an automated diagnostic audit for cluster computer systems
10/24/2002US20020154463 Electrostatic discharge protection structures for high speed technologies with mixed and ultra-low voltage supplies
10/24/2002US20020154459 Electricals package integrating run capacitor, motor protector and motor starter
10/24/2002US20020153989 Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse
10/24/2002DE10115675A1 Operating motor, especially DC actuator motor, involves summing power loss derived from measured and threshold power values over period and comparing with upper threshold value
10/23/2002CN2518242Y Adapter with protector
10/23/2002CN1375901A Autoamtic control only for selected phase
10/23/2002CN1375900A Single-phase or all-phase automatic switch controller
10/22/2002US6469883 Method and apparatus for early AC power failure detection
10/22/2002US6469882 Current transformer initial condition correction
10/22/2002US6469629 Distributed logic in multiple protective relays
10/22/2002US6469560 Electrostatic discharge protective circuit
10/17/2002WO2002082713A1 System and method for aligning data between local and remote sources thereof
10/17/2002WO2002082613A1 Jamming protection device for moving member
10/17/2002WO2002082612A1 Circuit arrangement
10/17/2002WO2002082611A2 Electric power supply with a safety cut-off
10/17/2002WO2002082107A1 Circuit for detecting leak from power supply
10/17/2002US20020152429 Method and apparatus for managing session information
10/17/2002US20020152423 Persistent session and data in transparently distributed objects