JPS56143735A - Feeding circuit of submarine cable system - Google Patents

Feeding circuit of submarine cable system

Info

Publication number
JPS56143735A
JPS56143735A JP4771880A JP4771880A JPS56143735A JP S56143735 A JPS56143735 A JP S56143735A JP 4771880 A JP4771880 A JP 4771880A JP 4771880 A JP4771880 A JP 4771880A JP S56143735 A JPS56143735 A JP S56143735A
Authority
JP
Japan
Prior art keywords
line
main transmission
feeding line
diode
branch
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
JP4771880A
Other languages
Japanese (ja)
Inventor
Yoshihiko Nishimura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4771880A priority Critical patent/JPS56143735A/en
Publication of JPS56143735A publication Critical patent/JPS56143735A/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

Abstract

PURPOSE:To prevent the breaking state of a main transmission line service even during the fault of a branch transmission line, by inserting and connecting two diodes in the opposite directions between the main transmission feeding line and branch transmission feeding line, and the branch transmission feeding line and a submarine earth. CONSTITUTION:Between main transmission feeding line 6 and branch transmission feeding line 7, diode 9 is interposed in the opposite direction. A constant current flowing from the A station side never flows in the direction of branch transmission line 2. So that the potential at point d1 will be higher than at point d2 by diode forward diffusion voltage V0, feed voltages to stations A and B are held at +V4 and -V5 and the balance of main transmission line feed is kept. At station C, applying forward voltage V6 to diode 10 interposed for submarine earth 18 performs one-station feed. Thus, the service of main transmission line 1 is not interrupted.
JP4771880A 1980-04-10 1980-04-10 Feeding circuit of submarine cable system Pending JPS56143735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4771880A JPS56143735A (en) 1980-04-10 1980-04-10 Feeding circuit of submarine cable system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4771880A JPS56143735A (en) 1980-04-10 1980-04-10 Feeding circuit of submarine cable system

Publications (1)

Publication Number Publication Date
JPS56143735A true JPS56143735A (en) 1981-11-09

Family

ID=12783086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4771880A Pending JPS56143735A (en) 1980-04-10 1980-04-10 Feeding circuit of submarine cable system

Country Status (1)

Country Link
JP (1) JPS56143735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798969A (en) * 1987-02-02 1989-01-17 Fujitsu Limited Power feed system in transmission line between terminals of three-terminal station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798969A (en) * 1987-02-02 1989-01-17 Fujitsu Limited Power feed system in transmission line between terminals of three-terminal station

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