GB1500891A – Systems for transmitting information in an alternating current electricity supply system
– Google Patents
GB1500891A – Systems for transmitting information in an alternating current electricity supply system
– Google Patents
Systems for transmitting information in an alternating current electricity supply system
Info
Publication number
GB1500891A
GB1500891A
GB31964/74A
GB3196474A
GB1500891A
GB 1500891 A
GB1500891 A
GB 1500891A
GB 31964/74 A
GB31964/74 A
GB 31964/74A
GB 3196474 A
GB3196474 A
GB 3196474A
GB 1500891 A
GB1500891 A
GB 1500891A
Authority
GB
United Kingdom
Prior art keywords
cycles
pulses
zero
cycle
amplitude
Prior art date
1974-07-18
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB31964/74A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1974-07-18
Filing date
1974-07-18
Publication date
1978-02-15
1974-07-18
Application filed by General Electric Co PLC
filed
Critical
General Electric Co PLC
1974-07-18
Priority to GB31964/74A
priority
Critical
patent/GB1500891A/en
1975-07-17
Priority to DE19752531897
priority
patent/DE2531897A1/en
1975-07-17
Priority to CA231,716A
priority
patent/CA1054946A/en
1975-07-17
Priority to IT68876/75A
priority
patent/IT1041304B/en
1975-07-17
Priority to CH939475A
priority
patent/CH595728A5/xx
1975-07-17
Priority to AU83143/75A
priority
patent/AU500793B2/en
1975-07-18
Priority to SE7508239A
priority
patent/SE7508239L/en
1975-07-18
Priority to ZA00754638A
priority
patent/ZA754638B/en
1975-07-18
Priority to FR7522617A
priority
patent/FR2279274A1/en
1978-02-15
Publication of GB1500891A
publication
Critical
patent/GB1500891A/en
1979-08-06
Priority to US06063965
priority
patent/US4254403B1/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B3/00—Line transmission systems
H04B3/54—Systems for transmission via power distribution lines
H04B3/542—Systems for transmission via power distribution lines the information being in digital form
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
H02J13/00—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
H02J13/00006—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
H02J13/00007—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
H02J13/0001—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using modification of a parameter of the network power signal
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
H05B47/10—Controlling the light source
H05B47/175—Controlling the light source by remote control
H05B47/185—Controlling the light source by remote control via power line carrier transmission
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B2203/00—Indexing scheme relating to line transmission systems
H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
H04B2203/542—Methods of transmitting or receiving signals via power distribution lines using zero crossing information
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B2203/00—Indexing scheme relating to line transmission systems
H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
H04B2203/5462—Systems for power line communications
H04B2203/5491—Systems for power line communications using filtering and bypassing
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
Y04S10/00—Systems supporting electrical power generation, transmission or distribution
Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
1500891 Signalling over power lines GENERAL ELECTRIC CO Ltd 16 July 1975 [18 July 1974] 31964/74 Heading H4R Signalling over power lines is effected by reducing the amplitude of selected cycles of the power waveform, throughout the same small portion of the cycle period including a voltage zero by drawing current from the system only throughout that portion. As described, the amplitude is reduced for a period not greater than one tenth of one cycle of the power supply at a negative-topositive going zero-crossing by firing a thyristor connected across the power supply. At the transmitter Fig. 5, the mains voltage across LN is differentiated and phase-shifted by 90 degrees in R21, C21 then squared I to produce positive pulses corresponding to positive mains half-cycles. The trailing edges of the pulses trigger a timer 2 producing further pulses of such duration that their trailing edges define the angle at which the thyristor is to be fired. The firing pulses are generated at 3 and gated to the firing transformer T1 when the code generator is operative and detectors 7, 8 confirm that the zero-crossing is in the proper direction and the waveform amplitude is below a predetermined value. The information code is such as to modify the first cycle for START, three selected odd cycles out of cycles 3 to 23 for ADDRESS and an odd cycle out of cycles 25 to 31 for DATA. At the receiver Fig. 7, the mains voltage is applied across R9, R10 to begin charging capacitor C4 when TR4 is turned off at each negative-topositive zero crossing. Diode D4 prevents overcharging. Capacitor C5 charges to the peak value held in C4 via D5 and TR5. Resistor R13 acts as a slow bleed to C5 and any charging current from C4 to C5 is monitored via TR5 and TR6 to provide an output G which lacks a pulse at the instant that the power waveform is modified. To control TR4, transistor TRI is off during negative half-cycles across LN and therefore produces a pulse train B whose amplitude equals the bias voltage + V. The trailing edges occur at negative-to-positive zero crossings and cause TR2 to turn off, allowing C2 to charge until TR2 turns on again. This therefore produces control pulses for driver TR3 to control TR4.
GB31964/74A
1974-07-18
1974-07-18
Systems for transmitting information in an alternating current electricity supply system
Expired
GB1500891A
(en)
Priority Applications (10)
Application Number
Priority Date
Filing Date
Title
GB31964/74A
GB1500891A
(en)
1974-07-18
1974-07-18
Systems for transmitting information in an alternating current electricity supply system
AU83143/75A
AU500793B2
(en)
1974-07-18
1975-07-17
Electricity supply conveying information
CA231,716A
CA1054946A
(en)
1974-07-18
1975-07-17
Systems for transmitting information in an alternating current electricity supply system
IT68876/75A
IT1041304B
(en)
1974-07-18
1975-07-17
SYSTEM FOR THE TRANSMISSION OF INFORMATION ON ALTERNATING CURRENT DISTRIBUTION LINES
CH939475A
CH595728A5
(en)
1974-07-18
1975-07-17
DE19752531897
DE2531897A1
(en)
1974-07-18
1975-07-17
ARRANGEMENT FOR TRANSFERRING INFORMATION
SE7508239A
SE7508239L
(en)
1974-07-18
1975-07-18
INSTALLATION FOR TRANSMISSION OF INFORMATION OVER THE ELECTRIC POWER
ZA00754638A
ZA754638B
(en)
1974-07-18
1975-07-18
Improvements in or relating to systems for transmitting information in an alternating current electricity supply system
FR7522617A
FR2279274A1
(en)
1974-07-18
1975-07-18
DEVICE FOR TRANSMISSION OF INFORMATION ON AN ALTERNATIVE CURRENT ELECTRICAL POWER SUPPLY CIRCUIT
US06063965
US4254403B1
(en)
1974-07-18
1979-08-06
System for transmitting information in an alternating current electricity supply system
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB31964/74A
GB1500891A
(en)
1974-07-18
1974-07-18
Systems for transmitting information in an alternating current electricity supply system
Publications (1)
Publication Number
Publication Date
GB1500891A
true
GB1500891A
(en)
1978-02-15
Family
ID=10331019
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB31964/74A
Expired
GB1500891A
(en)
1974-07-18
1974-07-18
Systems for transmitting information in an alternating current electricity supply system
Country Status (9)
Country
Link
AU
(1)
AU500793B2
(en)
CA
(1)
CA1054946A
(en)
CH
(1)
CH595728A5
(en)
DE
(1)
DE2531897A1
(en)
FR
(1)
FR2279274A1
(en)
GB
(1)
GB1500891A
(en)
IT
(1)
IT1041304B
(en)
SE
(1)
SE7508239L
(en)
ZA
(1)
ZA754638B
(en)
Cited By (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0046395A1
(en)
*
1980-08-18
1982-02-24
THE GENERAL ELECTRIC COMPANY, p.l.c.
Dimming system for electric discharge lamps
US4335381A
(en)
1978-08-15
1982-06-15
Rovex Limited
Remote control of electrical devices
US4348582A
(en)
*
1978-03-14
1982-09-07
Texas Instruments Incorporated
Communication via an electricity supply main
US4392121A
(en)
*
1979-12-07
1983-07-05
The General Electric Company Limited
Receiver for A.C. electrical supply signalling arrangement
GB2290686A
(en)
*
1994-06-17
1996-01-03
Baker Hughes Inc
Transmitting data over a power cable utilizing a magnetically saturable core reactor
US8593266B2
(en)
1999-07-01
2013-11-26
Oilfield Equipment Development Center Limited
Power line communication system
GB2511162A
(en)
*
2013-12-04
2014-08-27
Energy Assets Ltd
Signal demodulation
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2849269C2
(en)
*
1978-11-14
1980-11-27
Gema Ag, Apparatebau, St. Gallen (Schweiz)
Process for powder spraying and pneumatic powder spraying device
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1196906A
(en)
*
1966-06-29
1970-07-01
Merseyside And North Wales Ele
Improvements in or relating to Control Systems
1974
1974-07-18
GB
GB31964/74A
patent/GB1500891A/en
not_active
Expired
1975
1975-07-17
IT
IT68876/75A
patent/IT1041304B/en
active
1975-07-17
CA
CA231,716A
patent/CA1054946A/en
not_active
Expired
1975-07-17
CH
CH939475A
patent/CH595728A5/xx
not_active
IP Right Cessation
1975-07-17
DE
DE19752531897
patent/DE2531897A1/en
not_active
Withdrawn
1975-07-17
AU
AU83143/75A
patent/AU500793B2/en
not_active
Expired
1975-07-18
ZA
ZA00754638A
patent/ZA754638B/en
unknown
1975-07-18
FR
FR7522617A
patent/FR2279274A1/en
active
Granted
1975-07-18
SE
SE7508239A
patent/SE7508239L/en
not_active
Application Discontinuation
Cited By (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4348582A
(en)
*
1978-03-14
1982-09-07
Texas Instruments Incorporated
Communication via an electricity supply main
US4335381A
(en)
1978-08-15
1982-06-15
Rovex Limited
Remote control of electrical devices
US4392121A
(en)
*
1979-12-07
1983-07-05
The General Electric Company Limited
Receiver for A.C. electrical supply signalling arrangement
EP0030816B1
(en)
*
1979-12-07
1983-09-28
THE GENERAL ELECTRIC COMPANY, p.l.c.
A.c. electrical supply signalling arrangements
EP0046395A1
(en)
*
1980-08-18
1982-02-24
THE GENERAL ELECTRIC COMPANY, p.l.c.
Dimming system for electric discharge lamps
GB2290686A
(en)
*
1994-06-17
1996-01-03
Baker Hughes Inc
Transmitting data over a power cable utilizing a magnetically saturable core reactor
US5670931A
(en)
*
1994-06-17
1997-09-23
Baker Hughes Incorporated
Method and apparatus for transmitting data over a power cable utilizing a magnetically saturable core reactor
GB2290686B
(en)
*
1994-06-17
1999-06-02
Baker Hughes Inc
Method and apparatus for transmitting data over a power cable utilizing a magnetically saturable core reactor
US8593266B2
(en)
1999-07-01
2013-11-26
Oilfield Equipment Development Center Limited
Power line communication system
GB2511162A
(en)
*
2013-12-04
2014-08-27
Energy Assets Ltd
Signal demodulation
GB2511162B
(en)
*
2013-12-04
2015-04-29
Energy Assets Ltd
Signal demodulation
Also Published As
Publication number
Publication date
DE2531897A1
(en)
1976-02-05
CA1054946A
(en)
1979-05-22
FR2279274A1
(en)
1976-02-13
FR2279274B1
(en)
1982-01-22
CH595728A5
(en)
1978-02-28
ZA754638B
(en)
1976-07-28
SE7508239L
(en)
1976-01-19
AU8314375A
(en)
1977-01-20
AU500793B2
(en)
1979-05-31
IT1041304B
(en)
1980-01-10
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Legal Events
Date
Code
Title
Description
1978-06-28
PS
Patent sealed
1992-03-11
PCNP
Patent ceased through non-payment of renewal fee
