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)
02/1982
02/09/1982US4315248 Load control system for standard electric utility meter
01/1982
01/19/1982CA1116714A1 Hotel/motel power load control and bilateral signalling apparatus
01/12/1982US4310829 Transmitting device for communications equipment for generating a signal to be superimposed on an AC power supply network
12/1981
12/22/1981US4307380 Transmitting signals over alternating current power networks
12/09/1981EP0041193A1 Information transmission system
12/02/1981EP0040689A1 Control and precontrol device for switching on and switching off operations and for condition ranges
11/1981
11/24/1981US4302750 Distribution automation system
11/18/1981EP0040146A1 Power breaker with remote control of the working threshold
11/12/1981WO1981003252A1 A system for switching off and possible relighting of selected lamps in a lighting plant
11/10/1981US4300126 Method and apparatus, for power line communications using zero crossing load interruption
11/10/1981US4300125 System for monitoring, transmitting and conditioning of information gathered at selected locations
11/04/1981EP0038877A1 Process and system for transmitting information and instructions on an alternating current distribution network
11/04/1981EP0038852A1 Programmable system for controlling a plurality of distributed electrical loads.
11/03/1981CA1111950A1 Distributed control system
10/1981
10/20/1981US4296462 Inverter controller
10/15/1981WO1981002960A1 Control unit for automatic meter reading system
10/14/1981EP0037763A1 Remote-control device for heating apparatuses connected to an alternating current supply plant
09/1981
09/30/1981EP0036666A1 Remote load selector
09/29/1981US4292546 Apparatus for controlling power application
09/23/1981EP0036115A2 Audiofrequency ripple control installation with watching current device
09/22/1981US4291236 Remote receiver for load and rate control in a power transmission system
09/09/1981EP0035411A2 Switching circuit for a remote control system
09/09/1981EP0035025A1 System for central reading and registration of customers' power consumption.
08/1981
08/26/1981EP0034467A1 Receivers suitable for use in remotely-operable switching devices and data transmission systems
08/26/1981EP0034466A1 Transmission systems for transmitting signals over power distribution networks, and transmitters and receivers for use therein
08/18/1981US4284979 Coding system for simultaneously signaling selected ones of a plurality of devices
08/05/1981EP0033273A2 Circuit breaking relays
08/04/1981CA1106443A1 Dc power transmission
07/1981
07/29/1981EP0032694A1 Arrangement for determining the position of a switch and for the control of the accompanying conductors for short- and open-circuit
07/08/1981EP0031734A2 Method and apparatus for management of electric distribution net with telecontrol of power-breakers
06/1981
06/24/1981EP0030816A1 A.C. electrical supply signalling arrangements
06/23/1981US4275439 Process control system
06/02/1981CA1102424A1 Digital communication system for transmitting digital information between a central station and a number of remote stations
05/1981
05/20/1981EP0028882A1 An electronic time based control system
05/14/1981WO1981001350A1 Method and apparatus for controlling distributed electrical loads
05/13/1981EP0028550A1 Inverter, and static generator of signals comprising such an inverter
05/06/1981EP0028178A1 Relay and method for telecontrol
04/1981
04/28/1981US4264960 System for controlling power distribution to customer loads
03/1981
03/05/1981WO1981000619A1 A device for central reading and registration of customers'power consumption
03/03/1981US4254403 Systems for transmitting information in an alternating current electricity supply system
03/03/1981CA1096946A1 Electrical load management system
02/1981
02/04/1981EP0023254A2 Method and apparatus for controlling power distribution of an electric utility
01/1981
01/20/1981US4246492 Method of and apparatus for load and/or load control signaling to customers in a power system
12/1980
12/16/1980US4239940 Carrier current communications system
12/10/1980EP0020310A1 A remote control direct electric load management system
11/1980
11/25/1980US4236149 Status indicating system for the instantaneous registering of the switching positions in an electrically remotely controlled high tension plant
11/04/1980US4232298 Remotely-controllable relays and filters therefor
10/1980
10/29/1980EP0018334A1 Apparatus for transmitting information on an alternating current line
10/21/1980US4229681 Frequency/sensitive switching circuit
10/07/1980CA1087266A1 Method and apparatus for communication over electric power lines
09/1980
09/09/1980US4222035 Multiplex system having digital coded power line signals
09/02/1980CA1084998A1 Process and testing generator for protective device
08/1980
08/19/1980US4218737 Revenue metering system for power companies
07/1980
07/29/1980US4215394 Control logic for an inverter ripple controlled power system
07/29/1980US4215276 Remote control of electrical power distribution system and method
07/29/1980CA1082781A2 Window comparator
07/22/1980CA1082330A1 Highly concentrated polyborate solutions and a method of preparing the same
07/15/1980US4213182 Programmable energy load controller system and methods
07/15/1980US4213058 Load shedding timer for a power management system
07/15/1980CA1081815A1 Polyphase distribution network power line carrier communication system
06/1980
06/10/1980US4207474 Sequential two tone detector
06/03/1980US4206444 Remote power controller utilizing communication lines
05/1980
05/27/1980CA1078461A1 Circuit arrangement for a remote control receiver
05/20/1980US4204195 Meter terminal unit for use in automatic remote meter reading and control system
05/20/1980US4204194 Meter terminal unit for use in automatic remote meter reading and control system
05/15/1980WO1980001024A1 Process for transferring information and system for carrying out the process
04/1980
04/29/1980US4200862 Appliance control
04/22/1980US4199761 Multichannel radio communication system for automated power line distribution networks
03/1980
03/18/1980US4194182 Electrical switch controllable alternatively by an internal timer and by digital information from a remote source
03/18/1980US4194128 Ripple control systems
03/11/1980US4193129 Charging circuit for sonar systems
02/1980
02/26/1980US4190800 Electrical load management system
02/26/1980US4190790 Isolator circuit for use with frequency sensitive switching circuit
02/06/1980EP0007728A1 Load shedding timer for a power management system
02/06/1980EP0007622A1 Circuit for reversing the rotation sense of a d.c. motor
01/1980
01/29/1980CA1070767A1 Synchronous power communicating
01/22/1980US4185272 Distribution control system
01/22/1980US4185205 Remote load controller
12/1979
12/18/1979US4179624 Carrier control method by using phase-pulse signals
11/1979
11/06/1979US4173754 Distributed control system
09/1979
09/25/1979US4169259 Frequency sensitive switching circuit
08/1979
08/14/1979US4164730 Externally controllable binary interrogation and decoding circuit, particularly for a remote control load selection system
07/1979
07/31/1979US4163219 Remote control device for electronic apparatus
07/31/1979US4163218 Electronic multiple device control system
07/31/1979US4163217 Remote load control system
07/24/1979US4162486 Encoded electrical control systems
07/17/1979US4161720 Meter terminal unit for use in automatic remote meter reading and control system
07/17/1979US4161651 Simultaneously sampled remote data reading and transmission system using optical fibers
07/10/1979CA1058089A1 Power line carrier communication system for signaling customer locations through ground wire conductors
05/1979
05/22/1979CA1054946A1 Systems for transmitting information in an alternating current electricity supply system
04/1979
04/17/1979CA1052703A1 Central station for power line access data system
02/1979
02/27/1979US4142178 High voltage signal coupler for a distribution network power line carrier communication system
02/13/1979US4139735 Carrier current communications system
02/06/1979CA1048106A1 Power monitoring and load shedding system
01/1979
01/16/1979US4135181 Automatic remote meter reading and control system
01/02/1979US4132355 Electronic temperature control system
12/1978
12/19/1978US4130874 Load management terminal having plural selectable address formats for a power line communication system
11/1978
11/21/1978US4126793 Circuit arrangement for a remote control receiver
11/07/1978US4124835 Remotely controlled utility service interrupter system and apparatus
10/1978
10/10/1978US4119912 Audio frequency heterodyne means and method