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)
05/2004
05/06/2004US20040085696 Surge counter/detector apparatus, system and method
05/06/2004US20040085110 Control arrangement
05/06/2004US20040085075 Overload current protection device using magnetic impedance element
05/06/2004EP1416621A2 Latching shutdown and delayed re-start of DC power supply in broadband network
05/06/2004EP1416603A1 Protection of an electric power transmission network
05/06/2004EP1416382A1 Identifying solutions to computer problems in main system by service system
05/06/2004EP1415389A1 Neutral pole location independent earth leakage detection circuit
05/06/2004EP1415377A2 System and method for managing object based clusters
05/06/2004EP0888628B1 Transformer/reactor
05/05/2004CN1494756A Improved digital protection and control device and method thereof
05/05/2004CN1494658A Apparatus and method for detecting and calculating ground fault resistance
05/05/2004CN1148773C Device for short-circuit protection
05/05/2004CN1148151C Foot controller for microsurgical system
05/04/2004US6732301 Serial bus diagnostic port of a digital system
05/04/2004US6732298 Nonmaskable interrupt workaround for a single exception interrupt handler processor
05/04/2004US6732296 Object oriented scaleable test executive
05/04/2004US6731655 Current differential relay device
05/04/2004US6731487 Method and devices for optimizing power consumption of trip units containing microprocessors
05/04/2004US6731485 Digital power inverter
05/04/2004US6731483 Circuit breaker with single test button mechanism
05/04/2004US6731482 Ground fault circuit interrupter
05/04/2004US6731116 Short-circuit detector
05/04/2004US6731098 Method and apparatus for sensing variable currents within the alternator of a genset that employs an amplifier and a switched feedback resistance
05/04/2004US6730883 Flexible heating cover assembly for thermal cycling of samples of biological material
04/2004
04/29/2004US20040080961 Power supply capable of protecting electric device circuit
04/29/2004US20040080879 Protection device with lockout test
04/29/2004DE10141349B4 Nicht-intrusives Ereignislokalisierungssystem und Verfahren zur Ereignislokalisierung für ein Überhitzungsdetektionssystem Non-intrusive event location system and method for event localization for an overheating detection system
04/28/2004EP1414147A1 Measuring process for the power output by a motor
04/28/2004CN2613915Y Intelligent comprehensive protector with programmable control and interface display for high/low voltage distribution switch
04/28/2004CN1492557A Circuit protector and method for over current and over heat protection thereof
04/28/2004CN1147998C Power supply control equipment and method
04/28/2004CN1147979C Method and equipment for debugging hidden line-breaking acident of power transmission line
04/28/2004CN1147978C Trip device having multiple apparatus for equipment protective reference
04/28/2004CN1147734C Commercial power frequency monitoring method and device
04/27/2004US6728905 Apparatus and method for rebuilding a logical device in a cluster computer system
04/27/2004US6728896 Failover method of a simulated operating system in a clustered computing environment
04/27/2004US6728814 Reconfigurable IEEE 1149.1 bus interface
04/27/2004US6728735 Restartable dump that produces a consistent filesystem on tapes
04/27/2004US6728717 Storage system with online manual
04/27/2004US6728087 Method and apparatus for remotely actuating a circuit protection device
04/22/2004WO2004034545A1 Overvoltage protection circuit
04/22/2004WO2004034541A1 Over-voltage protection arrangement for a low voltage power supply
04/22/2004WO2004034199A2 Managing resources for ip networking
04/22/2004WO2004013643A3 Ground fault detection system for ungrounded power systems
04/22/2004WO2004012061A3 Consistent message ordering for semi-active and passive replication
04/22/2004US20040078710 Method for fault identification in an electrical radial network, an application of the method and an arrangement for fault identification in an electrical radial network
04/22/2004US20040078704 Transaction-safe FAT file system
04/22/2004US20040078662 Energy harvesting for wireless sensor operation and data transmission
04/22/2004US20040078632 System with multiple path fail over, fail back and load balancing
04/22/2004US20040078609 Electronic apparatus having improved diagnostic interface
04/22/2004US20040078463 Method and apparatus for minimally invasive network monitoring
04/22/2004US20040075963 Solenoid energy control method and a multi-stage over-current protector
04/22/2004US20040075471 Apparatus and method for detecting phase state
04/22/2004CA2500639A1 Managing resources for ip networking
04/22/2004CA2499140A1 Overvoltage protection circuit
04/21/2004EP1411612A2 Apparatus and method for detecting phase state
04/21/2004EP0955984B1 Dual loop frequency and power control
04/21/2004CN2613082Y Safety protector for electric appliance
04/21/2004CN1491471A Overload current protection device using magnetic impedance element
04/21/2004CN1491470A Overload current protection device using magnetic impedance element
04/21/2004CN1490912A Automatic protective leakage circuit breaker for fire hazard
04/21/2004CN1490911A Automatic protective leakage switch for fire hazard
04/21/2004CN1490572A Apparatus and method for detecting phase state
04/21/2004CN1146363C Surgical module with neuron chip communication
04/20/2004US6725405 Apparatus and method for providing a diagnostic problem determination methodology for complex systems
04/20/2004US6725401 Optimized fault notification in an overlay mesh network via network knowledge correlation
04/20/2004US6725399 Requirements based software testing method
04/20/2004US6724600 Combination current sensor and relay
04/20/2004US6724597 Protection device for low voltage networks
04/20/2004US6724591 Circuit interrupter employing a mechanism to open a power circuit in response to a resistor body burning open
04/20/2004US6724590 Ground fault circuit interrupter with indicator lamp and protective circuit powered from hot bus bar
04/20/2004US6724589 Boat electrical test and isolator system
04/15/2004WO2004032304A2 Device and method for providing electric service
04/15/2004WO2004031342A1 Flexible heating cover assembly for thermal cycling of samples of biological material
04/15/2004US20040073837 Semiconductor device and in-circuit emulator using the same
04/15/2004US20040073829 Fail-over of multiple memory blocks in multiple memory modules in computer system
04/15/2004US20040070913 Lightning arrester device for low-voltage network
04/15/2004US20040070909 Digital protection relay with time sync function
04/15/2004US20040070907 Current sense circuit
04/15/2004US20040070904 Over-voltage protection arrangement for a low voltage power supply
04/15/2004US20040070899 Leakage current detection interrupter extension cord with cord diagnostics
04/15/2004US20040070898 Arc-fault detecting circuit breaker system
04/15/2004US20040070897 Ground fault circuit interrupter with reverse wiring protection
04/15/2004US20040070895 Leakage current detection interrupter extension cord with cord diagnostics and/or inadvertent ground-to-neutral detection
04/15/2004US20040070894 Device and method for providing electric service
04/15/2004US20040070474 Ground fault circuit interrupter with reverse wiring protection
04/15/2004DE19959790B4 Verfahren und Anordnung zum fernbedienbaren Parametieren der Betriebskennwerte von elektrischen Betriebsmitteln Method and apparatus for remotely operated assign parameters to the operating characteristics of electrical equipment
04/14/2004EP1408594A2 DC ground fault detector and system-interconnected generation device using the DC ground fault detector
04/14/2004EP1006894A4 Numeric keypad simulated on touchscreen
04/14/2004EP1006893A4 Surgical module with neuron chip communication
04/14/2004CN2612136Y Whole electronic overvoltage, overcurrent protective security unit having light guide warning function
04/14/2004CN2612130Y Single phase earthing and resonance overvoltage protector of 3-phase power network
04/14/2004CN2612055Y Multipurpose energy saving switch
04/14/2004CN1489819A Protection system for power networks
04/14/2004CN1489818A Ground-fault protection coordinating system and ground-fault circuit interrupter with ground-fault protection coordinating unit
04/14/2004CN1489253A Direction comparing distance relay apparatus
04/14/2004CN1489168A Grounding failure circuit breaker with backing protection function
04/14/2004CN1489051A Semiconductor device and internal circuit simulator using said semiconductor device
04/13/2004US6721907 System and method for monitoring the state and operability of components in distributed computing systems
04/13/2004US6721671 Directional element to determine faults on ungrounded power systems