| 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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| 04/25/2001 | EP1093681A1 Solid state overload relay |
| 04/25/2001 | EP1093680A1 Adaptive sampling rate based on power system frequency |
| 04/25/2001 | EP0954771A4 System and method for providing backup protection in a power substation |
| 04/25/2001 | CN2427915Y Single phase leakage protective device |
| 04/25/2001 | CN1292561A Active earth fault turn-off |
| 04/24/2001 | US6222714 Microprocessor based setting group controller for protective relay operations |
| 04/24/2001 | US6222713 Electrical protective equipment switch with overcurrent and undervoltage function and overcurrent sensor for it |
| 04/24/2001 | US6222711 Bus-bar protection relay equipment |
| 04/24/2001 | US6222709 Device and method for supplying electric power to a load |
| 04/24/2001 | US6222355 Power supply control device for protecting a load and method of controlling the same |
| 04/19/2001 | WO2001028061A1 Sensor supply open load detector circuit |
| 04/19/2001 | US20010000355 Electronic trip unit having software download capabilities |
| 04/19/2001 | DE19951214A1 Fuse monitoring circuit e.g. for low-voltage (LV) switchgear |
| 04/18/2001 | EP1092981A2 Apparatus and method for measuring current |
| 04/18/2001 | CN2427023Y Automatic controlling socket |
| 04/18/2001 | CN1292110A Protection circuit for integrated circuit |
| 04/17/2001 | US6219216 Combination current sensor and relay |
| 04/17/2001 | US6218816 Power supply with control circuit for short circuit detection and excess current protection |
| 04/17/2001 | US6218647 Method and apparatus for using direct current to detect ground faults in a shielded heater wire |
| 04/17/2001 | CA2219368C A method and a device for detecting and handling short-circuit phenomena for power semiconductor devices of turn-off type connected in series |
| 04/17/2001 | CA2218941C Method and apparatus for limiting current in a direct voltage network of a power transmission system |
| 04/12/2001 | WO2001026200A1 Undervoltage release with an electromagnet and clocked holding current circuit |
| 04/12/2001 | DE19947411A1 System for limiting overcurrent for AC mains, comprises impedance connected parallel to series circuit of vacuum switch and current limiting element |
| 04/11/2001 | EP0949881A4 Surgical handpiece |
| 04/11/2001 | CN2426649Y Overvoltage-preventing air switch |
| 04/11/2001 | CN1064476C Circuiot layout for reducing transient process caused by motor switch with overcurrent protection |
| 04/10/2001 | US6215265 System and method for controlling activating actuator motors for various mechanisms, such as roller shutters, awnings and movies screens |
| 04/10/2001 | US6215201 Power window switch device |
| 04/07/2001 | CA2323009A1 Protection system for devices in an electrical distribution network |
| 04/05/2001 | WO2001024338A1 Method for operating a circuit-breaker |
| 04/05/2001 | DE19948688A1 Verfahren zum Betrieb eines Leistungsschalters A method of operating a circuit breaker |
| 04/05/2001 | DE19946098A1 Leakage current protection device has short circuit device between output connections switched from high to low impedance state by signal from current difference measurement device |
| 04/04/2001 | EP1089413A2 Current limiter |
| 04/04/2001 | EP1089080A1 Leak detection method for electrical equipment |
| 04/04/2001 | CN2426242Y Acummulator state monitoring and open loop protection device for converting station |
| 04/04/2001 | CN2426174Y Contactless compensation type ac voltage stabilizer for microcomputer |
| 04/04/2001 | CN1290058A Device and method for detecting overheated power transistors of phase inverter |
| 04/04/2001 | CN1064190C Frequency coverter |
| 04/03/2001 | US6212651 Computer system having an instruction interception and substitution circuit |
| 04/03/2001 | US6212446 Method and apparatus for detecting out-of-step in electric power system |
| 04/03/2001 | US6212049 Load center monitor for electrical power lines |
| 04/03/2001 | US6212048 Combination ground fault circuit interrupter/surge suppressor |
| 04/03/2001 | CA2055466C Method and apparatus for monitoring an ac transmission line |
| 03/29/2001 | WO2001021920A1 Method for limiting the closing force of movable components |
| 03/29/2001 | WO2001021445A1 Multi-voltage wiring loom |
| 03/29/2001 | WO2001021444A1 Multi-voltage vehicle network |
| 03/29/2001 | DE19945824A1 Control device for electrically-driven fans, especially for motor vehicle air conditioner reduces temperature thresholds, the greater the rate of change of temperature |
| 03/28/2001 | EP1087493A2 Voltage drop detector adjustable for different nominal voltages |
| 03/28/2001 | EP1087492A2 Power-on reset circuit |
| 03/28/2001 | EP1087491A2 Voltage detector |
| 03/28/2001 | EP1087490A1 Electrical protection device with a sigma-delta analog-to-digital converter |
| 03/28/2001 | CN2425446Y Burglar alarm for power installation |
| 03/28/2001 | CN2425444Y Built-in thin distribution box |
| 03/28/2001 | CN1289164A Simple leakage, breaking and overcurrent protection circuit |
| 03/28/2001 | CN1289163A Leakage protector |
| 03/28/2001 | CN1289050A Electricity-leakage detection method for electric appliance |
| 03/28/2001 | CN1063877C Circuit unit for charging capacitor |
| 03/28/2001 | CN1063876C Failsafe system using power off relay and control method thereof |
| 03/27/2001 | US6208258 Circuit and method for determining whether AC mains voltage is below or above a predetermined set point |
| 03/27/2001 | US6208242 Circuit configuration to monitor a regulated output voltage in a motor vehicle |
| 03/22/2001 | WO2001020742A1 Residual current protective device |
| 03/22/2001 | WO2001020741A1 Residual current device sensitive to universal-current and method for detecting a fault current |
| 03/22/2001 | WO2001020740A1 Residual current protective device with frequency generator |
| 03/22/2001 | WO2000067270A8 Power supply systems and methods that can enable an electromagnetic device to ride-through variations in a supply voltage |
| 03/22/2001 | DE19944833A1 Mehrspannungsbordnetz Multi-voltage electrical network |
| 03/22/2001 | DE10028088A1 Stromdifferenzrelaiseinrichtung Current differential relay device |
| 03/22/2001 | DE10023088A1 Kraftfahrzeug-Verteilerkasten und -System Motor vehicle distribution box and system |
| 03/21/2001 | EP1085634A1 Method and apparatus for detecting leakage current on a two wire dc or ac power line |
| 03/21/2001 | EP1085633A1 Trip device with an improved man-machine interface and circuit breaker comprising such a trip device |
| 03/21/2001 | CN2424468Y Automatic protecting watt-hour meter when leakage |
| 03/21/2001 | CN1288277A Electronic tripping device having initialization device |
| 03/21/2001 | CN1288246A Unlocking device having improved man/machine interface, and circuit breaking device |
| 03/21/2001 | CN1288159A Fault location |
| 03/21/2001 | CN1063588C Full-automatic single-phase potential error protector |
| 03/20/2001 | US6205562 Path switching method, path switching apparatus and nodes of UPSR |
| 03/20/2001 | US6205010 Switch circuit having protection function to interrupt input of control signal |
| 03/20/2001 | US6204706 Voltage supervisory circuit for a multi-rail power supply |
| 03/20/2001 | US6204612 Discharge device |
| 03/20/2001 | CA2095811C Communication interface for bus connected circuit breakers |
| 03/15/2001 | WO2001018934A1 Method and apparatus for protecting electronic equipment coupled to a telephone line |
| 03/15/2001 | WO2001018933A1 An arrangement for protecting a dc source |
| 03/15/2001 | WO2001018931A1 System and method for providing surge, short and reverse polarity connection protection |
| 03/15/2001 | DE19944043A1 Fault current protection device |
| 03/15/2001 | DE19943802A1 Allstromsensitive Fehlerstrom-Schutzeinrichtung und Verfahren zur Erfassung eines Fehlerstroms Universal current protection device and method for detecting a fault current |
| 03/15/2001 | DE19943801A1 Fehlerstrom-Schutzeinrichtung Residual current protective device |
| 03/15/2001 | DE19943780A1 Fehlerstrom-Schutzeinrichtung mit Frequenzgenerator Residual current protective device with frequency generator |
| 03/15/2001 | DE19941475A1 Verfahren zum Begrenzen der Schließkraft von beweglichen Teilen Method for limiting the closing force of movable parts |
| 03/15/2001 | DE19938315A1 Stromerfassungseinrichtung Current detecting means |
| 03/15/2001 | DE19936983A1 Schaltgerät Switchgear |
| 03/15/2001 | DE19936214A1 Measurement procedure and circuit for a power network circuit breaker, for detecting when a load is switched on again and re- connecting a network so power can be drawn, based on a change in applied voltage or supplied current |
| 03/15/2001 | DE10017861A1 Störungsüberwachung Fault monitoring |
| 03/14/2001 | EP1083645A1 Electronic trip device comprising initializing apparatus |
| 03/14/2001 | EP1083644A1 Earth fault protection device sensitive to arc currents, trip device and circuit breaker comprising such a device |
| 03/14/2001 | EP1082798A1 Electronic tripping device for a circuit breaker |
| 03/14/2001 | CN1287704A Battery pack protection circuit |
| 03/08/2001 | WO2001017162A1 Extensible intrusion detection system |
| 03/08/2001 | WO2001017161A1 System and method for using signatures to detect computer intrusions |
| 03/08/2001 | WO2001017092A1 Electric power supervision |
| 03/08/2001 | WO2001017090A1 Semiconductor fuse for electrical consumers |
| 03/08/2001 | WO2001017085A1 Material-utilised alternating current machines |