Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › 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
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)
04/1990
04/19/1990WO1990004229A1 Power management and automation system
04/10/1990CA1267686A1 Load control circuit
04/04/1990EP0361993A1 Remote control system, especially for lighting, in spaces incorporating controllable distribution zones with a variable configuration
04/04/1990CN2055650U Anti-theft alarm for low-voltage power transmission equipment
04/03/1990US4914674 Signal generator
04/03/1990US4914431 Electronic control system for model railroads
04/03/1990US4914418 Outbound detector system and method
03/1990
03/28/1990EP0360543A1 Power line communications system
03/28/1990EP0225340B1 A control system
03/27/1990US4912723 Multipurpose digital IC for communication and control network
03/22/1990WO1990003060A1 Control apparatus
03/21/1990EP0359178A2 Load control system
03/21/1990CN1040684A Monitoring and fault protection of high voltage switch yards
03/08/1990WO1990002379A1 Utility metering
03/07/1990CN1007108B Centre control receiver
02/1990
02/21/1990EP0243412A4 Intertripping system.
02/08/1990DE3826821A1 Circuit arrangement for bus monitoring
02/06/1990US4899217 Communication and energy control system for houses
02/06/1990US4899129 Automated appliance and energy distribution control system
02/06/1990US4899062 Process and apparatus for the generation of transmission current signals in an alternating current distribution network
01/1990
01/31/1990EP0352660A2 Method and device for receiving and filtering an audio frequency input signal having at least one control frequency
01/30/1990CA1265195A1 Electrical power control systems
01/23/1990US4896277 Method of mapping refrigerated containers in a power line carrier based monitoring system
01/18/1990DE3823788A1 Arrangement for the connection of wall switches in installation systems
01/03/1990CN2050662U Automatic arrangement of power supply system
12/1989
12/28/1989WO1989012950A1 Procedure and apparatus for the control of electric power
12/26/1989US4890001 Electrical circuit for selectively activating electrical devices
12/20/1989EP0346614A2 Method of initialising a digital signal transmission system
12/20/1989EP0346374A1 Remote control system, components and methods
12/14/1989WO1989012345A1 Controller and a network controller system
12/13/1989CN2049430U Wireless monitoring and power load control device for tansformer substation
12/13/1989CN2049429U Wireless remote-controlled switch for high voltage power supply
11/1989
11/30/1989DE3818248A1 Freely addressable peripheral transmitters
11/29/1989EP0343226A1 Lighting control.
11/29/1989CN2048635U Two-way terminal machine controlled by wireless power load
11/29/1989CN1037624A 信号传输的方法 The method of signal transmission
11/08/1989EP0340973A2 Improvements relating to electrical control systems
11/02/1989DE3813538A1 Circuit arrangement for the monitored operation of two AC loads via a common supply line
10/1989
10/26/1989DE3812465A1 Busbar
10/19/1989WO1989010030A1 Actuator and communication system
10/12/1989DE3909807A1 Remote control
10/05/1989WO1989009411A1 Monitoring and fault protection of high voltage switchyards
10/05/1989DE3810476A1 Method for the serial transmission of control states
09/1989
09/26/1989CA1261009A1 Signal generator
09/20/1989EP0333275A2 Power supply device
09/19/1989US4868539 Bi-directional multi-frequency ripple control system
09/12/1989US4866733 Radio bus system
09/05/1989US4864588 Remote control system, components and methods
08/1989
08/30/1989EP0329901A2 Power failure detector and recovery apparatus for an electronic remote data recorder
08/29/1989US4862493 Electronic remote data recorder for electric energy metering
08/29/1989US4862157 Signal transfer method and equipment for electric machine equipped with three-phase power supply cable
08/29/1989US4862012 Electrical switching apparatus
08/24/1989DE3804379A1 Remotely switchable intermediate plug socket with feedback
08/23/1989EP0328743A2 Circuit arrangement for selectively switching on several electrical appliances, especially car radios for demonstration
08/23/1989CN2043346U Sampler capable of measuring seven electric parameters
08/22/1989US4860280 Apparatus and method for a secure and diagnosable antijabber communication circuit
08/09/1989EP0327456A1 System for putting electronic packages connected to a communication channel in an operative and in a standby position
08/09/1989CN2042642U Mechanical latching device controlled by computer
08/08/1989US4855671 Electrical power line and substation monitoring apparatus
08/01/1989CA1258098A1 Apparatus for data transmission from multiple sources on a single channel
08/01/1989CA1258094C Apparatus for measuring the potential of a transmission line conductor
07/1989
07/27/1989WO1989005076A3 Apparatus and method for a secure and diagnosable antijabber communication circuit
07/27/1989DE3800872A1 Apparatus for the purposes of receiving, decoding and displaying information which is fed into public power supply networks
07/25/1989US4851740 Lamp holder including a centrally operated switch by means of carrier current transmission
07/11/1989US4847782 Energy management system with responder unit having an override
07/11/1989US4847781 Energy management system
06/1989
06/29/1989WO1989006008A1 Device for regulating an electric heating appliance
06/27/1989CA1256538A1 Bi-directional data telemetry system
06/22/1989DE3841236A1 Distributed plant control system
06/21/1989EP0282577A4 Energy management system.
06/20/1989US4841281 Apparatus for controlling a switching amplifier
06/15/1989WO1989005536A1 Lighting control
06/14/1989EP0320390A1 Remote control system for domestic appliances
06/13/1989US4838438 Crane and driving system therefor
06/07/1989EP0319235A2 Communication and energy control system for houses
06/06/1989US4837455 Interrupt controlled switching device
06/01/1989WO1989005076A2 Apparatus and method for a secure and diagnosable antijabber communication circuit
06/01/1989DE3826509A1 Method for the transmission of signals between a control-technology central processing unit and a drive unit for a power converter valve which can be switched on and off
05/1989
05/30/1989US4835706 Centralized control system for controlling loads such as an electric motor
05/24/1989EP0317541A1 Method of remote control of several local stations by a central station and system for application of the method
05/23/1989US4833592 Master station apparatus for remote supervisory control system with touch panel video display
05/18/1989WO1989004517A1 Protocol for network having a plurality of intelligent cells
05/18/1989WO1989004516A1 An input/output section for an intelligent cell which provides sensing, bidirectional communications and control
05/10/1989EP0072857B1 Data communication system
05/09/1989US4829298 Electrical power line monitoring systems, including harmonic value measurements and relaying communications
05/09/1989CA1253927A1 Signal generator
04/1989
04/25/1989US4825096 Remote control apparatus for tripping off switches
04/11/1989CA1252538A1 Data communication system
04/11/1989CA1252537A1 Data transmission system
04/11/1989CA1252535A1 Adaptive communication network and method
04/11/1989CA1252534A1 Signal transfer method and equipment for electric machine equipped with three-phase power supply cable
04/11/1989CA1252533A1 Bi-directional multi-frequency ripple control system
04/06/1989WO1989003133A1 Monitoring device
04/05/1989CN2035543U High frequency protection receiving and dispatching signal device
04/04/1989US4819180 Variable-limit demand controller for metering electrical energy
03/1989
03/29/1989EP0309407A1 Monitoring device
03/28/1989US4816988 Master station apparatus in supervisory and control system
03/15/1989EP0307344A1 Wiring for motor vehicles, and process for operating it
03/14/1989CA1251260A1 Apparatus for measuring the temperature and other parameters of an electric power conductor
03/08/1989EP0305906A2 Circuit arrangement
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