Patents for H02J 13 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network (15,829) |
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11/30/1999 | US5994999 Low voltage link for transmitting on/off orders |
11/25/1999 | WO1999060691A1 Measuring bridge with integrated intelligence |
11/24/1999 | EP0959569A1 Method and apparatus for signal coupling in high or middle voltage cable |
11/23/1999 | US5990570 Power supplying apparatus for a vehicle and an intensive wiring apparatus |
11/18/1999 | DE19821953A1 Instrument transformer for current and voltage measurement used in monitoring and control or automation of medium and large |
11/18/1999 | DE19821045A1 Vorrichtung und Verfahren zur Signaleinkopplung in Hoch- und Mittelspannungsleitungen Apparatus and method for signal injection into high and medium voltage cables |
11/17/1999 | EP0957555A2 Electric power system protection and control system |
11/17/1999 | EP0956631A2 Power line transmission |
11/17/1999 | EP0761070B1 Communications protocol for remote data generating stations |
11/16/1999 | US5986574 System and method for communication between remote locations |
11/16/1999 | CA2188305C Self-powered powerline sensor |
11/11/1999 | WO1999057402A1 Drive system for a partition wall system |
11/09/1999 | US5982103 Compact radio frequency transmitting and receiving antenna and control device employing same |
11/09/1999 | US5982098 Smart logic switching uninterruptible power source |
11/09/1999 | US5982052 DC power control of switching devices |
11/04/1999 | WO1999056138A1 Method for selecting an outstation using a control centre in a transmission system |
11/03/1999 | EP0953845A1 Method by which a central unit selects a secondary unit in a transmission system |
11/03/1999 | CN1046176C Multi-user tandem device for power supply |
11/02/1999 | US5978193 Switchgear unit capable of communication |
10/28/1999 | DE19818233A1 Building installation system |
10/27/1999 | EP0952680A1 Transmission of an operation mode signal via an AC supply line |
10/26/1999 | US5973896 Shock and arc protection device for an electrical distribution system |
10/21/1999 | DE19817944A1 Switch mechanism for an electric switching system esp. a high voltage system |
10/20/1999 | EP0950278A1 Circuit for selective power supply to electrical units |
10/19/1999 | US5969503 Unified contactor control system for battery plant and method of operation thereof |
10/19/1999 | CA2206562C System of communicating output function status indications between two or more power system protective relays |
10/14/1999 | DE19812909A1 Inventarisierungssystem bei dem eine Lokalisierungskennung aus einem Energienetz bezogen wird Inventory system in which a location identifier is drawn from the utility grid |
10/13/1999 | EP0949741A2 An emergency lighting network |
10/13/1999 | EP0796178B1 Circuitry for function modules which can be fitted in a motor vehicle |
10/12/1999 | US5966675 Method and device for monitoring power supply networks |
10/07/1999 | WO1999050971A1 Method for controlling at least one electric consumer connected to a control device, and a corresponding circuit |
10/07/1999 | WO1999050806A1 Signalling system based on inductive power/signal transfer |
10/07/1999 | DE19815169A1 Verfahren und Vorrichtung zum Betrieb von Energieverbrauchseinheiten Method and device for the operation of power-consuming units |
10/07/1999 | DE19814366A1 Verfahren zur Steuerung wenigstens eines mit einer Steuerungseinrichtung verbundenen elektrischen Verbrauchers und entsprechende Schaltungsanordnung A method for controlling at least one electrical consumer connected to a control means and appropriate circuitry |
10/06/1999 | EP0948113A2 Method and device for the operation of engergy consuming units |
10/06/1999 | EP0948111A2 Fault protection arrangements and methods for electric power distribution systems |
10/05/1999 | US5963457 Electrical power distribution monitoring system and method |
10/05/1999 | US5963146 Wide area communications network for remote data generating stations |
10/05/1999 | US5962991 Intelligent outdoor lighting control system |
09/30/1999 | DE19813537A1 Control switch for switching supply voltage to load, e.g. domestic oven |
09/29/1999 | EP0944945A2 Improvements relating to signalling in electricity distribution systems |
09/29/1999 | EP0857340B1 Electromechanical switchgear, in particular an alarm system |
09/29/1999 | CN1230305A Switch installation |
09/28/1999 | US5959550 Remote meter reading system |
09/28/1999 | CA2125101C Radio frequency control system |
09/23/1999 | WO1999048340A1 Apparatus for and method of transmitting and receiving data over a low voltage power distribution system |
09/23/1999 | WO1999048177A2 Location or inventory system |
09/23/1999 | WO1999047991A1 An apparatus for and method of inhibiting and overriding an electrical control device |
09/23/1999 | CA2322841A1 Location or inventory system |
09/23/1999 | CA2322813A1 An apparatus for and method of inhibiting and overriding an electrical control device |
09/21/1999 | US5956462 Domestic electric energy control |
09/21/1999 | US5955859 Interface module between a field bus and electrical equipment controlling and protecting an electric motor |
09/21/1999 | US5955844 Smart logic switching uninterruptible power source |
09/16/1999 | WO1999046868A1 Two wire communication system |
09/15/1999 | EP0942612A2 Method and apparatus for providing network infrastructure information for a network control center |
09/15/1999 | EP0750802B1 Switching distributor for switching electric consumers on and off |
09/10/1999 | WO1999045445A1 Integrated building control and information system with wireless networking |
09/08/1999 | EP0940901A2 Control system, method of protectively controlling electric power system and storage medium storing program code |
09/08/1999 | EP0939998A1 Temperature and time control of electrical heating device |
09/02/1999 | WO1999044397A1 Lights |
09/01/1999 | CN2336510Y Full-automatic electricity control cabinet |
08/26/1999 | WO1999043068A1 System, device and method for monitoring a plurality of electric users, particularly household appliances |
08/26/1999 | DE19856020A1 Electronic networks provision unit for data processing devices with additional properties |
08/24/1999 | US5943202 Two way packet radio including smart data buffer and packet rate conversion |
08/24/1999 | US5943198 Electrical fault interrupt circuits |
08/24/1999 | US5942984 Communications network for identifying the location of articles relative to a floor plan |
08/24/1999 | US5942814 Module for controlling current to a load including sensing of the position of a switch |
08/24/1999 | CA2194148C Universal charging station and method for charging electric vehicle batteries |
08/17/1999 | US5940398 Method for common transmission of digital source and control data between data sources and data sinks connected through data lines |
08/17/1999 | US5940005 Method and apparatus for storing and utilizing a unique power down state in a model railroad system |
08/12/1999 | DE19804307A1 Multidirectional control receiver for energy supply network |
08/05/1999 | WO1997029560A8 Remotely controlling and determining electrical device status |
08/04/1999 | EP0933859A1 Electronic on-line control and monitoring system for high-voltage circuit breakers |
08/04/1999 | EP0932943A1 Interface device of bi-directional connection of currents carrying low voltage/radiofrequency |
08/04/1999 | CN1225200A Pull out electrical equipment |
08/04/1999 | CN1225199A Bus coupler with transformer-free transmission |
08/04/1999 | CN1224873A Power control system and power control method |
08/03/1999 | US5933092 Method and apparatus for performing the register functions for a plurality of metering devices at a common node |
08/03/1999 | US5933071 Communications apparatus |
07/29/1999 | WO1999038363A1 Method and apparatus for controlling lights and other devices |
07/29/1999 | WO1999025586A3 Intelligent current distribution system for vehicles and method for manufacturing the same |
07/29/1999 | WO1999025585A3 Intelligent current distribution system and method for manufacturing the same |
07/29/1999 | DE19902575A1 Remote-controlled mains switching device for connecting remote-action control rooms and remote-action substations in central mains conductor system |
07/29/1999 | DE19846817A1 Circuit arrangement for switching of electric load, such as light source or window blinds |
07/29/1999 | CA2283941A1 Method and apparatus for controlling lights and other devices |
07/28/1999 | EP0932239A2 Battery cell bypass topology |
07/27/1999 | US5929750 Transmission network and filter therefor |
07/27/1999 | US5929663 Control circuit for distributed electrical equipment |
07/27/1999 | US5929536 Control device, more especially for actuating valves |
07/21/1999 | EP0930688A2 Power switching circuit for use in a power distribution system |
07/20/1999 | US5926089 Electric power system protection and control system and distributed control system |
07/20/1999 | US5925888 Optocoupler input expansion circuit |
07/20/1999 | CA2227523A1 Domestic electric energy control |
07/15/1999 | DE19800275A1 Detection arrangement for switching unit |
07/14/1999 | CN1222779A Electric power system dispatching method and digital power dispatching system |
07/14/1999 | CN1222695A Method of monitoring the functional capability of tap selector |
07/14/1999 | CN1044185C Energy load controller for pulse signal circuit |
07/13/1999 | US5923271 Communication and coding system for controlling electrical actuators |
07/13/1999 | US5923269 Energy meter with multiple protocols for communication with local and wide area networks |
07/07/1999 | EP0927919A1 Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating systems |