Patents
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)
06/1991
06/12/1991EP0431982A2 Digital IC device arrangement
06/12/1991EP0431014A1 Utility metering.
06/05/1991EP0430836A1 Remote control carrier communication system
05/1991
05/21/1991US5018138 Protocol for network having a plurality of intelligent cells
05/21/1991US5017799 Automatic power supply load shedding techniques
05/08/1991CN1051274A Combined protection system for remote illumination signs in coal mine
05/02/1991DE3935157A1 Medium-voltage switchgear operation with individual bus=bar devices - achieves control concept for bus=bar and spatially sepd. switching fields with redundancy equiv. to prim. technology
04/1991
04/17/1991EP0422190A1 Installation for remote monitoring and control of the opening and closed state of one among a plurality of contacts.
04/16/1991US5008561 Device depowering apparatus
04/10/1991EP0420901A1 Procedure and apparatus for the control of electric power.
04/09/1991US5006846 Power transmission line monitoring system
04/03/1991EP0420270A2 Ripple control transmitter
04/02/1991US5005187 Remote control
03/1991
03/26/1991US5003486 Programmable safety electrical socket controller
03/13/1991EP0282572A4 Responder unit for energy management system
03/13/1991CN2073186U Remote-control multy-directional power supply unit
03/07/1991WO1991003093A1 Electrical power distribution control system
03/07/1991WO1991002668A1 Data transmission process by serial data bus in distributed systems
03/06/1991EP0415662A2 An arrangement for supervising the condition of a safety light system
03/05/1991CA1281095C Multipurpose digital integrated circuit for communication and control network
02/1991
02/28/1991DE3927968A1 Verfahren zur datenuebertragung ueber einen seriellen datenbus in verteilten systemen Method for data transmission over a serial data bus in distributed systems
02/27/1991EP0414139A2 Method for synchronizing the transmitters of a plurality of transmitting stations of a ripple control transmitting installation
02/27/1991CN1049577A Village electric power monitor system with broadcasting network adopted as communication channel
02/26/1991US4996513 Carrier stability erasure filling system for communications over electricity distribution network
02/19/1991US4995053 Remote control system, components and methods
02/12/1991CA1280165C Transmission line sensor apparatus operable with near zero current line conditions
02/05/1991US4990908 AC wire
01/1991
01/30/1991EP0410434A2 Lighting remote monitor/control system
01/30/1991EP0410194A1 Remote control transmitter
01/30/1991EP0409880A1 Actuator and communication system.
01/22/1991US4987317 System for putting electronic units connected to a communications channel into an operational state or into a stand by state
01/16/1991EP0407902A2 Consumption indication device for supply means
01/15/1991CA1279097C Power supply having on-off control
01/09/1991EP0406346A1 Power management and automation system
01/09/1991EP0406276A1 Monitoring and fault protection of high voltage switchyards.
01/01/1991US4982175 Telemetry circuit with noise immunization
12/1990
12/19/1990EP0402654A2 Connection device for the connection of electrical appliances
12/18/1990US4979066 Loading controlling apparatus
12/18/1990CA1278062C2 Multipurpose digital integrated circuit for communication and control network
12/18/1990CA1278061C2 Multipurpose digital integrated circuit for communication and control network
12/12/1990EP0401315A1 Smart power connector
12/04/1990US4975592 Current supply arrangement having a stand-by mode featuring low power consumption
12/04/1990CA1277381C2 Multipurpose digital integrated circuit for communication and control network
11/1990
11/27/1990US4973954 Network user for maintaining data and energy transmission
11/22/1990EP0398550A2 Power status detecting apparatus
11/22/1990DE4009658A1 Fernsteuerbares leistungsstellsystem A remotely controllable power adjustment system
11/15/1990DE3915456A1 Two wire system for selective grouped load control - has microprocessor for digitised control of senser and receiver modules operating on multi-bit signals for enhanced reliability
11/14/1990EP0396682A1 A process for varying the load on a power supply system.
11/06/1990US4969146 Protocol for network having a plurality of intelligent cells
11/06/1990US4968970 Method of and system for power line carrier communications
10/1990
10/31/1990EP0395495A1 Adaptive network routing for power line communications
10/31/1990EP0395494A2 Method of and system for power line carrier communications
10/31/1990CN1046622A Apparatus for automazation of power circuit dispatch and controlling device of power load
10/25/1990DE3913266A1 Circuit for controlling electrical equipment of road vehicle - provides centralised switch panel for all auxiliaries and programming facility using existing cable runs
10/24/1990EP0393914A1 Communication systems
10/24/1990EP0393117A1 Protocol for network having a plurality of intelligent cells.
10/23/1990US4965694 Remote controlled circuit breaker system
10/18/1990WO1990012411A1 Installation for remote monitoring and control of the opening and closed state of one among a plurality of contacts
10/16/1990US4964058 Power management and automation system
10/10/1990EP0390973A1 Send device for transporting information on an electrical feeding network
10/03/1990CN2063315U Centralized monitor for dc power supply
10/02/1990US4961203 Signal generator
09/1990
09/27/1990DE3909064A1 Mains isolator
09/26/1990EP0388882A2 Circuit arrangement
09/26/1990EP0388441A1 Apparatus and Method for a secure and diagnosable Antijabber Communication.
09/25/1990US4959647 Wireless power controller for a machine device
09/19/1990EP0388047A2 Device depowering apparatus
09/19/1990CN2062452U Antomatic taking down the number of electric meter
09/11/1990US4956561 Smart power connector
09/04/1990US4955018 Protocol for network having plurality of intelligent cells
08/1990
08/29/1990EP0384881A1 Programmable safety electrical socket controller
08/29/1990EP0384307A1 Process for producing a digital image of switchgear containing at least one bus bar, and switching devices in an electrical energy distribution network
08/29/1990CN1045009A Self-adaptive method and equipment for controlling power load
08/09/1990WO1990009050A1 Power supply system
08/07/1990US4947484 Protocol for network having a plurality of intelligent cells
07/1990
07/31/1990CA1272263A1 Energy management system
07/26/1990WO1990008418A1 Method and arrangement for controlling electrical devices
07/19/1990CA2008173A1 Integrated outlet for communications and closed loop electrical power
07/18/1990EP0378473A1 Controller and method for controlling the level of average power applied to an electrical load
07/17/1990US4942571 On-board network for motor vehicles
07/12/1990WO1990007814A1 Smart power connector
07/11/1990EP0377551A2 Outbound detector system and method
07/10/1990US4941143 Protocol for network having a plurality of intelligent cells
07/05/1990DE3844203A1 Domestic installation system
07/05/1990DE3843351A1 Electrical installation having a current-carrying cable containing an optical waveguide
06/1990
06/28/1990DE3843944A1 Electrical contactor arranged in a housing
06/26/1990US4937569 Data communication system
06/26/1990EP0245469A4 Bi-directional data telemetry system.
06/14/1990WO1990006639A1 Device for transmission of information through a three-phase power line
06/13/1990EP0372442A2 Switching device
06/13/1990EP0372441A1 Passive infra-red motion detector
06/05/1990US4932037 Remote control system, components and methods
05/1990
05/30/1990EP0370943A2 System for telemetering data
05/15/1990US4926158 Powered communication link
05/14/1990EP0282578A4 Quad exchange power controller.
05/09/1990EP0367510A2 Apparatus and method for near contact magnetic recording
05/03/1990WO1990004873A1 A process for varying the load on a power supply system
04/1990
04/26/1990DE3935102A1 Verfahren zum beeinflussen der belastung eines versorgungsspannungsnetzes A method for influencing the load of a supply voltage grid
04/25/1990EP0364466A1 Electrical control apparatus
04/24/1990US4920476 Electronic control for lighting panelboards