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)
03/1989
03/02/1989DE3727778A1 RC filter
03/01/1989CN1031436A 无线控制系统 Wireless Control System
03/01/1989CN1031426A Remote quantitative controller of electric power
02/1989
02/28/1989US4808917 Transmission line sensor apparatus operable with near zero current line conditions
02/28/1989US4808841 Centralized control system for home electric appliances
02/21/1989US4806929 Remote monitor control system
02/21/1989US4806855 System for rating electric power transmission lines and equipment
02/14/1989US4804938 Distribution energy management system
02/14/1989US4804862 Electro mechanical switch having remotely controlled off position
02/07/1989US4803632 Intelligent utility meter system
02/01/1989EP0301680A2 Wireless control system
01/1989
01/24/1989US4800363 Method for data transmission via an electric distribution system and transmission system for carrying out the method
01/24/1989CA1249335A1 System for rating electric power transmission lines and equipment
01/24/1989CA1249327A1 Digital light control
01/18/1989EP0299311A2 Method and arrangement for telecontrol of commutating devices
01/17/1989US4799005 Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules
01/10/1989CA1248590A1 Wide band data transmission over an electricity distribution network
01/03/1989US4796027 Apparatus for data transmission from multiple sources on a single channel
12/1988
12/27/1988US4794371 Remote control apparatus
12/27/1988US4794328 Tool for mounting a sensor module on a live power transmission line
12/27/1988US4794327 Electrical parameter sensing module for mounting on and removal from an energized high voltage power conductor
12/21/1988EP0295896A2 An apparatus for controlling a switching amplifier
12/20/1988US4792731 Multi-room controlled for individual light controls
12/15/1988WO1988010020A1 Electrical control apparatus
11/1988
11/29/1988US4788647 Control system for electric power plant
11/15/1988US4785406 Quad exchange power controller
11/08/1988US4783748 Method and apparatus for remote measurement
11/01/1988US4782322 Amplitude modulation of control signals over electrical power lines utilizing the response of tuning fork filters
10/1988
10/25/1988US4780910 Display for a remote receiver in an electrical utility load management system
10/25/1988US4780908 Method and apparatus for signal transmission regulation in differential protection
10/20/1988DE3711244A1 Electrical installation system
10/11/1988US4777607 Interface device for control and monitoring of distribution panelboards
10/11/1988US4777381 Electrical power line and substation monitoring apparatus and systems
10/05/1988EP0285035A2 Device for switching an electric appliance according to the effective tariff
09/1988
09/28/1988CN88102334A Integral electrical consuming monitor
09/21/1988EP0282578A1 Quad exchange power controller
09/21/1988EP0282577A1 Energy management system.
09/21/1988EP0282572A1 Responder unit for energy management system
09/07/1988CN87204581U Computer console for electric power measuring
08/1988
08/25/1988WO1988006365A1 Remote control system, components and methods
08/17/1988EP0278920A2 A remote control apparatus for tripping off switches
08/09/1988US4763103 Process and method for wide band transmission, particularly for data transmission over an electricity distribution network
08/03/1988CN87101478A Predetermination type power load controlling method and apparatus
07/1988
07/19/1988US4758962 Electrical power line and substation monitoring apparatus and systems
07/13/1988CN87204723U Automatic control devicl against electricity theft.
07/12/1988US4757417 Monitoring system for load-driving switch circuits
06/1988
06/15/1988EP0270920A2 Method and apparatus to generate emission current signals in an alternating current distribution network
06/09/1988DE3640643A1 Device and method for checking a control circuit of a telecontrol apparatus
06/07/1988US4749992 Utility monitoring and control system
05/1988
05/24/1988US4746809 AC power line signaling system
05/24/1988US4746241 Hinge clamp for securing a sensor module on a power transmission line
05/17/1988US4745392 Noise reduction in signal transmission system over building power distribution wiring
05/10/1988US4744093 Method of detecting phase pulse signals from an AC distribution line
05/04/1988CN87201643U Multifunctional automatic and remote controlling device for low-voltage power distribution
04/1988
04/27/1988EP0265342A2 Distribution energy management system
04/12/1988US4737784 Keyless entry system for automotive vehicle devices with weak-battery alarm
04/12/1988US4737658 For power distribution networks
04/07/1988WO1988002584A1 Responder unit for energy management system
04/07/1988WO1988002583A1 Energy management system
03/1988
03/31/1988DE3632420A1 Wiring arrangement for motor vehicles having an internal combustion engine
03/29/1988US4734843 Electrical power control systems
03/24/1988WO1988002121A1 Quad exchange power controller
03/09/1988EP0259101A2 Method for a remote supervisory control system
03/09/1988EP0258920A2 Noise reduction in signal transmission system over building power distribution wiring
03/02/1988CN86200648U Multi-functional remote power-transmission transformer
03/01/1988US4728948 Remote monitor and control system
03/01/1988US4728887 System for rating electric power transmission lines and equipment
02/1988
02/25/1988DE3628094A1 Electric mains supply with auxiliary energy source - has water pump storage plants in installed in existing buildings, charged during low peak demand
02/24/1988CN85204759U Intellectual analogue plate for computers
02/16/1988US4725839 Remote, inductively coupled, transducer interface
02/09/1988US4724435 Bi-directional data telemetry system
02/02/1988US4723220 Apparatus for power measuring and calculating Fourier components of power line parameters
02/02/1988US4723192 Automatic electricity control monitoring exit/entry device
01/1988
01/28/1988DE3623805A1 Signal transmission system for remotely controlling and monitoring electrical or electronic devices
01/20/1988EP0252953A1 Electrical installation for submarines
01/12/1988US4719446 Remote control for combined ceiling fan and light fixture
01/05/1988US4718079 Remote unit monitoring system
12/1987
12/29/1987US4716301 Digital light control
12/22/1987US4714893 Apparatus for measuring the potential of a transmission line conductor
12/17/1987DE3718456A1 Method for increasing the load carrying capability of installed low-voltage power distributor systems by means of central control of the switching of periodic loads
12/10/1987DE3618790A1 Method for testing a large number of emergency lights in an illumination system, and a test system for carrying out the method
12/03/1987DE3618316A1 Method and device for detecting and transmitting power consumption data and/or fault messages
12/02/1987EP0247382A2 Load control circuit
11/1987
11/24/1987US4709339 Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules
11/19/1987EP0245469A1 Bi-directional data telemetry system
11/17/1987US4707679 Magnetic tamper detector
11/04/1987EP0243412A1 Intertripping system
11/04/1987CN87104141A Integrative power ration device
11/04/1987CN87102420A Distant monitoring and controlling system
10/1987
10/28/1987EP0242609A1 Interface control level
10/15/1987DE3627319A1 Control system for industrial plants, particularly high-voltage switching installations
09/1987
09/29/1987US4697093 Testable, fault-tolerant power interface circuit for controlling plant process equipment
09/29/1987CA1227577A1 Diagnostic system and method
09/24/1987DE3608910A1 Combined electrical connection unit for power and information connection
09/09/1987EP0235401A1 Power supply switch circuit
09/08/1987US4692761 Adaptive communication network and method
09/01/1987US4691341 Method of transferring digital information and street lighting control system
09/01/1987US4691128 Circuit for coupling a signal processing device to a transmission line
08/1987
08/25/1987US4689752 System and apparatus for monitoring and control of a bulk electric power delivery system
08/25/1987US4689493 Centralized switching circuit for building electrical network