[go: up one dir, main page]

GB502407A - Improvements in electrical signalling systems - Google Patents

Improvements in electrical signalling systems

Info

Publication number
GB502407A
GB502407A GB22500/37A GB2250037A GB502407A GB 502407 A GB502407 A GB 502407A GB 22500/37 A GB22500/37 A GB 22500/37A GB 2250037 A GB2250037 A GB 2250037A GB 502407 A GB502407 A GB 502407A
Authority
GB
United Kingdom
Prior art keywords
frequency
valves
transformer
amplifier
network
Prior art date
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
GB22500/37A
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
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.)
Filing date
Publication date
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB22500/37A priority Critical patent/GB502407A/en
Publication of GB502407A publication Critical patent/GB502407A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02J13/00009—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 pulsed signals
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

502,407. Valve generating circuits; electric control systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. Aug. 16, 1937, No. 22500. [Class 40 (v)] [Also in Group XXXVIII] A high-frequency generator for signalling over supply mains comprises a pair of generating valves V1, V2 connected in a push-pull oscillatory circuit and a plurality of pairs of amplifying valves connected in parallel each pair being connected in push-pull, any tendency in the amplifying valves to self oscillation being overcome by small chokes CH in the anode circuits. In the arrangement shown, the high-frequency current is fed to a hightension network XYZ over the transformer MT coupling it to a low-tension network 1, 2, 3, N, the circuit of the secondary winding of the output transformer OT of the amplifier being connected to balanced windings of transformer MT and containing a condenser C3 to prevent the passage of the supply frequency. All the valves are of the screen-grid type and are fed with operating potentials from the low-tension network. The high-frequency currents may be amplified, or relayed at the same or a different frequency, at the receiving station, and if the frequency is the same means are provided for preventing the amplifier or auxiliary oscillator from becoming self-sustaining. Specifications 435,564 and 490,936, [both in Group XXXVIII], are referred to.
GB22500/37A 1937-08-16 1937-08-16 Improvements in electrical signalling systems Expired GB502407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22500/37A GB502407A (en) 1937-08-16 1937-08-16 Improvements in electrical signalling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22500/37A GB502407A (en) 1937-08-16 1937-08-16 Improvements in electrical signalling systems

Publications (1)

Publication Number Publication Date
GB502407A true GB502407A (en) 1939-03-16

Family

ID=10180393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22500/37A Expired GB502407A (en) 1937-08-16 1937-08-16 Improvements in electrical signalling systems

Country Status (1)

Country Link
GB (1) GB502407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211289B (en) * 1955-02-07 1966-02-24 Bendix Corp Circuit arrangement for the electrical coupling of a voltage amplifier to a generator for high-frequency oscillations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211289B (en) * 1955-02-07 1966-02-24 Bendix Corp Circuit arrangement for the electrical coupling of a voltage amplifier to a generator for high-frequency oscillations

Similar Documents

Publication Publication Date Title
GB854206A (en) Improvements in or relating to circuit arrangements for operating low pressure electric discharge lamps
GB539105A (en) Improvements in carrier frequency relay communication systems
US2319320A (en) Circuit arrangement
GB502407A (en) Improvements in electrical signalling systems
GB566844A (en) Distortion reduction on modulated amplifiers
GB514509A (en) Improvements in or relating to synchronising impulse separator circuits for use in television receivers
US2711512A (en) Modulation system
GB290302A (en)
US1796071A (en) High-frequency repeater
US2064019A (en) High efficiency modulator with automatic regulator of power source
GB1088251A (en) Improvements in or relating to transistor amplifiers
US1728879A (en) Amplifying system
US1722996A (en) Telephone relay connection
GB691909A (en) Improvements relating to negative feedback amplifiers
GB490347A (en) Improvements in or relating to amplifying systems
US1778058A (en) Amplifying system
GB662096A (en) Improvements in or relating to amplifiers
US1877128A (en) Electron discharge device circuit arrangement
US1815498A (en) Electric converter
GB262979A (en) Improvements in wireless receiving apparatus using current from the supply mains
GB510792A (en) Improvements in or relating to electrical signalling systems
GB186070A (en)
GB359788A (en) Improvements in or relating to apparatus for eliminating disturbing oscillations in wireless receiving and transmitting apparatus
GB537119A (en) Improvements in or relating to time base circuits for cathode ray tubes
GB223938A (en) Improvements in vacuum tube circuits