JPS57123791A - Two-wire signal transmission system - Google Patents

Two-wire signal transmission system

Info

Publication number
JPS57123791A
JPS57123791A JP56008245A JP824581A JPS57123791A JP S57123791 A JPS57123791 A JP S57123791A JP 56008245 A JP56008245 A JP 56008245A JP 824581 A JP824581 A JP 824581A JP S57123791 A JPS57123791 A JP S57123791A
Authority
JP
Japan
Prior art keywords
electricity
circuit
transformer
power source
pulse width
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.)
Granted
Application number
JP56008245A
Other languages
Japanese (ja)
Other versions
JPS6338158B2 (en
Inventor
Ichiu Watabe
Yutaka Wakasa
Hisayuki Uchiike
Kiyoharu Inao
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP56008245A priority Critical patent/JPS57123791A/en
Publication of JPS57123791A publication Critical patent/JPS57123791A/en
Publication of JPS6338158B2 publication Critical patent/JPS6338158B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1311—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using the power network as support for the transmission
    • H02J13/1315—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using the power network as support for the transmission using modification of a parameter of the network power signal
    • 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
    • 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
    • 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)
  • Selective Calling Equipment (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To perform high-precision signal transmission by binary-modulating a load state to an AC power source by supplying the AC electricity of the power source to a terminal part through a control part, and by operating a terminal part while using the energy of the AC electricity as a power source. CONSTITUTION:The continuous-value signal input unit 13b of a control part 1 sends the AC electricity of a transformer 12b to a transmission line through a load state detecting circuit 134b. This AC electricity is received by the analog detector 31b of a terminal part 3 through a transformer 311a and then rectified by a rectifying circuit 312b into a direct current, which is used to operate each circuit of the analog detector 31b. The analog detector 31b converts the analog measured signal of a process detected by a detecting circuit 315b into a pulse width signal by a converting circuit 314b. This pulse width signal is supplied to a load control circuit 313b, which permits the load amount of a transformer 311b to vary with the logical value of the pulse width signal.
JP56008245A 1981-01-22 1981-01-22 Two-wire signal transmission system Granted JPS57123791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56008245A JPS57123791A (en) 1981-01-22 1981-01-22 Two-wire signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56008245A JPS57123791A (en) 1981-01-22 1981-01-22 Two-wire signal transmission system

Publications (2)

Publication Number Publication Date
JPS57123791A true JPS57123791A (en) 1982-08-02
JPS6338158B2 JPS6338158B2 (en) 1988-07-28

Family

ID=11687753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56008245A Granted JPS57123791A (en) 1981-01-22 1981-01-22 Two-wire signal transmission system

Country Status (1)

Country Link
JP (1) JPS57123791A (en)

Also Published As

Publication number Publication date
JPS6338158B2 (en) 1988-07-28

Similar Documents

Publication Publication Date Title
CA1271808C (en) Power conversion system
US4180745A (en) Power regulating supply system for AC electrical loads
JPS6439222A (en) Circuit breaker
JPS57123791A (en) Two-wire signal transmission system
MY103302A (en) Direct current power supply
ES8304726A1 (en) Device providing a regulated alternating voltage source for a power supply from a mains alternating current source.
JPS5758414A (en) Analog-to-digital conversion circuit providing agc function
JPS6473259A (en) Instantaneous interruption detection for ac power supply
JPS57208870A (en) Protective device for service interruption of voltage type inverter
JPS57173378A (en) Operating method for inverter
MY106905A (en) An actual operating time indicator
ES471026A1 (en) A.C. Operated signalling device for mopeds
JPS54148220A (en) Power supply device with stabilized dc voltage
JPS57123790A (en) Two-wire signal transmission system
JPS54115751A (en) Transformer tap position selector
JPS5743209A (en) Regulated power supply
JPS5448037A (en) Controller for ac-dc converter
JPS56112883A (en) Phase controlling device for ac-dc converter
JPS5696561A (en) Current signal detector for digital transmission system
JPS6447238A (en) Multioutput power source circuit
JPS5685122A (en) Power factor improving circuit
JPS5496754A (en) Protective relay of direct current trnasmission line
JPS6450719A (en) Charging circuit
JPS5611368A (en) Signal lamp disconnection detecting unit
JPS57160305A (en) Operative command control transmitting system