JPS5631239A - Electric power supply method - Google Patents

Electric power supply method

Info

Publication number
JPS5631239A
JPS5631239A JP10606579A JP10606579A JPS5631239A JP S5631239 A JPS5631239 A JP S5631239A JP 10606579 A JP10606579 A JP 10606579A JP 10606579 A JP10606579 A JP 10606579A JP S5631239 A JPS5631239 A JP S5631239A
Authority
JP
Japan
Prior art keywords
transformer
power supply
tap
voltage
relays
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.)
Pending
Application number
JP10606579A
Other languages
Japanese (ja)
Inventor
Norio Taniguchi
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP10606579A priority Critical patent/JPS5631239A/en
Publication of JPS5631239A publication Critical patent/JPS5631239A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To reduce heat loss without artificial operations, by constituting the power supply receiving end side with a voltage detection contact circuit and a transformer with tap. CONSTITUTION:AC relays and so on of RL1-RL3 are operated by respective voltages, and the primary-side tap voltage of transformer 10 is set according to them, and the primary-side tap of transformer 10 is switched automatically according to the end voltage of cable 3 in equipment 4 by contacts of AC relays of RL1-RL3. As a result, loss can be reduced easily without artificial countermeasures even if the length of cable 3 is changed by several hundres-several thousand meters, so that the operation of stabilized power source 5 can be used in a stable region.
JP10606579A 1979-08-22 1979-08-22 Electric power supply method Pending JPS5631239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10606579A JPS5631239A (en) 1979-08-22 1979-08-22 Electric power supply method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10606579A JPS5631239A (en) 1979-08-22 1979-08-22 Electric power supply method

Publications (1)

Publication Number Publication Date
JPS5631239A true JPS5631239A (en) 1981-03-30

Family

ID=14424198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10606579A Pending JPS5631239A (en) 1979-08-22 1979-08-22 Electric power supply method

Country Status (1)

Country Link
JP (1) JPS5631239A (en)

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