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)
01/2001
01/09/2001US6173416 System and method for detecting errors using CPU signature
01/09/2001US6172472 Control system for a two-terminal electric motor connected to a voltage network having two lines
01/09/2001CA2075914C Addressable relay module for circuit breakers
01/04/2001WO2001001537A1 Ground distance relay for ac power transmission line protection
01/04/2001WO2001001523A1 Method and arrangement for customizing electronic circuit interrupters
01/04/2001DE19928856A1 Circuit for overload protection has first and second input and output connections, two FETs for controlling conducting paths depending on the presence of an excessive voltage
01/04/2001DE19927762A1 Neue elektrische Schalteinrichtung zum Überstromschutz New electrical switching device for overcurrent protection
01/04/2001DE10005864A1 Power supply controller for motor vehicle, has drive circuit to perform ON/OFF control of power supply switching transistor based on voltage difference between power supply switching and reference transistors
01/03/2001EP1064716A1 Electric motor monitoring circuit
01/03/2001EP1064162A1 Method and device for operating an adjusting drive in a motor vehicle
01/03/2001CN2413419Y Leakage protector with feeder protection function
01/03/2001CN2413418Y Push-button overload current protector
01/02/2001US6170068 System and method for preserving the state of a device across a reset event
01/02/2001US6170065 Automatic system for dynamic diagnosis and repair of computer configurations
01/02/2001US6169651 Protective relay with modular control panel
01/02/2001US6169649 Detection circuit for circuit protection devices of a power supply and method of operation thereof
01/02/2001US6169337 Power supplying apparatus for a vehicle and an intensive wiring apparatus
12/2000
12/28/2000WO2000079681A1 Load control system having an overload protection circuit
12/28/2000WO2000079667A1 A GROUND FAULT INTERRUPT CIRCUIT APPARATUS FOR 400-Hz AIRCRAFT ELECTRICAL SYSTEMS
12/28/2000WO2000079666A1 An apparatus for limiting an electrical current
12/28/2000WO2000079665A1 A monitor circuit for a current limiting device
12/28/2000WO2000079664A1 Electrical circuit breaker for protecting against overcurrents
12/28/2000WO2000079310A1 Transient monitoring system and method
12/28/2000DE19927389A1 Schaltung zum Detektieren eines unzulässig hohen Stromes in einer Endstufe A circuit for detecting an inadmissibly high current in an output stage
12/27/2000EP1063663A1 Method and arrangement for customizing electronic circuit interrupters
12/27/2000EP1062714A1 Electronic tripping device comprising control and display elements
12/27/2000CN2412304Y Anti-fradulant electricity device
12/27/2000CN2412303Y Electronic protector for zero line micro-current or breakage
12/27/2000CN2412302Y Multifunctional protector for electrical appliances
12/26/2000US6167329 Dual microprocessor electronic trip unit for a circuit interrupter
12/26/2000CA2010168C Overcurrent protection device
12/21/2000WO2000078004A2 Policy based network architecture
12/21/2000WO2000077906A1 An electrical machine winding ground-fault protection system
12/21/2000WO2000077905A1 Circuit for detecting an inadmissibly high current in an output stage
12/20/2000EP1061627A2 Electrical ground fault protection circuit
12/20/2000EP1061626A1 An apparatus for limiting an electrical current
12/20/2000EP1061625A1 A monitor circuit for a current limiting device
12/20/2000EP1061374A2 Active ground fault disconnect
12/20/2000EP1060553A1 Current-limiting arrangement with a superconductive transformer arrangement in an electric circuit
12/20/2000EP1060551A1 Adaptive distance protection system
12/20/2000CN2411610Y Earth leakage protective device
12/19/2000US6163444 Circuit breaker
12/19/2000US6163266 Fan operation detection circuit for a DC fan and method of operation thereof
12/19/2000US6163265 Voltage sensing arrangement
12/19/2000US6163204 Fast AC sensor for detecting power outages
12/19/2000CA2086331C Faulted circuit detector having isolated indicator
12/14/2000WO2000076048A1 Current limiting device comprising a high temperature supraconductor
12/14/2000WO2000076047A1 Method and apparatus for deriving power system data from configurable source points
12/14/2000WO2000048281A3 Distributed logic in multiple protective relays
12/13/2000EP1059537A2 Electrically powered apparatus with electronic safety control
12/13/2000EP1058957A1 Method for event analysis at an intelligent electronic device
12/13/2000EP1058934A1 Method of detecting manual trips in an intelligent electronic device
12/13/2000EP1058871A1 Dc power bus voltage transient suppression circuit
12/13/2000CN2410815Y Electric power electronic power source device
12/13/2000CN2410799Y Electric protector
12/13/2000CN2410798Y Automatic power-off alarm device for fast heating type electric water heater
12/13/2000CN2410731Y Safety power supply controller
12/13/2000CN1276641A Surge suppressing circuit capable of responding power disturbance change rate
12/13/2000CN1276640A Electronic trip unit with user-adjustable current spike sensitivity
12/13/2000CN1276639A Transmission synchronization method of current differential relaying device
12/12/2000US6161199 Non-intrusive in-system debugging for a microcontroller with in-system programming capabilities using in-system debugging circuitry and program embedded in-system debugging commands
12/12/2000US6160690 Distribution control system and distribution control method capable of isolating fault section without fail
12/12/2000US6160689 Two wire solid state AC/DC circuit breaker
12/12/2000US6160386 Parallel power system which includes over voltage protection
12/12/2000US6160381 Battery pack protection circuit and battery pack including a protection circuit
12/12/2000US6158656 Final accommodation device for power-source drop
12/07/2000WO2000074196A1 Current distribution system
12/07/2000WO2000074194A1 An electrical machine winding ground-fault protection system
12/07/2000WO2000074192A1 Fail safe fault interrupter
12/07/2000DE19927031A1 Strombegrenzungseinrichtung mit Hochtemperatur-Supraleiter Current-limiting device with high-temperature superconductors
12/07/2000DE19927030A1 Circuit-breaker with electronic microprocessor-controlled release
12/07/2000DE19925963A1 Test device for low voltage circuit breaker
12/07/2000DE19924153A1 Integrated semiconductor memory for integrated circuit
12/07/2000DE19924106A1 Schaltungsanordnung für die Überwachung von Erdschlüssen an einem Ofen, der ein dreiphasiges Heizsystem aufweist Circuit arrangement for the monitoring of ground faults in a furnace having a three phase heating system
12/06/2000EP1058366A2 Surge suppression network responsive to the rate of change of power disturbances
12/06/2000EP1058365A2 Electronic trip unit with user-adjustable sensitivity to current spikes
12/06/2000EP1058283A2 Monitoring system for low voltage switching devices
12/06/2000EP1057247A1 Ac power converter
12/06/2000EP1057233A1 Zone arc fault detection
12/06/2000EP1057232A1 Electrical fault detection system
12/06/2000EP1057132A2 Method of statistical analysis in an intelligent electronic device
12/06/2000CN2409694Y Protector for electric leakage electric shock, overcurrent and overvoltage
12/06/2000CN2409693Y Low-voltage distributing system grounding protector
12/06/2000CN2409681Y High-voltage metering protecting cabinet for electric shovel
12/06/2000CN2409659Y Electrical safety experiment case for single-phase three-hole planar electrode socket and electric leakage protector
12/06/2000CN1275806A Electrostatic discharging protector for polysilicon diode
12/06/2000CN1059294C Overvoltage protection device
12/05/2000US6157529 Basic surge protector
12/05/2000US6157527 Load center monitor and digitally enhanced circuit breakers system for electrical power lines
12/05/2000US6157139 Electrical light socket
11/2000
11/30/2000WO2000072575A2 Reliable datagram transport service
11/30/2000WO2000072487A1 Quality of service in reliable datagram
11/30/2000WO2000072423A1 Method for operating an electric motor, and an electric motor for carrying out such a method
11/30/2000WO2000072422A1 An electrical machine winding ground-fault protection system
11/30/2000WO2000072421A1 Reliable multi-unicast
11/30/2000WO2000072170A1 Memory management in distributed computer system
11/30/2000WO2000072169A1 Congestion management in distributed computer system
11/30/2000WO2000072159A1 Reliable datagram
11/30/2000WO2000072158A1 Reliable multicast
11/30/2000WO2000072142A1 Partitioning in distributed computer system