ZA728822B - Power feed arrangement for communication systems - Google Patents

Power feed arrangement for communication systems

Info

Publication number
ZA728822B
ZA728822B ZA728822A ZA728822A ZA728822B ZA 728822 B ZA728822 B ZA 728822B ZA 728822 A ZA728822 A ZA 728822A ZA 728822 A ZA728822 A ZA 728822A ZA 728822 B ZA728822 B ZA 728822B
Authority
ZA
South Africa
Prior art keywords
communication systems
feed arrangement
power feed
power
arrangement
Prior art date
Application number
ZA728822A
Other languages
English (en)
Inventor
L Bolton
B Hall
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of ZA728822B publication Critical patent/ZA728822B/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/68—Selection of materials for use in lead-acid accumulators
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C11/00—Alloys based on lead
    • C22C11/02—Alloys based on lead with an alkali or an alkaline earth metal as the next major constituent
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/003—Fault detection by injection of an auxiliary voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0076—Details of emergency protective circuit arrangements concerning transmission of signals by superposition on the watched current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/005—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of too low isolation resistance, too high load, short-circuit; earth fault
    • 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
    • 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
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
ZA728822A 1971-12-15 1972-12-13 Power feed arrangement for communication systems ZA728822B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5824471A GB1370672A (en) 1971-12-15 1971-12-15 Power feed arrangement for communication systems

Publications (1)

Publication Number Publication Date
ZA728822B true ZA728822B (en) 1973-09-26

Family

ID=10481123

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA728822A ZA728822B (en) 1971-12-15 1972-12-13 Power feed arrangement for communication systems

Country Status (10)

Country Link
US (1) US3868484A (ja)
JP (1) JPS55934B2 (ja)
BE (1) BE792883A (ja)
CA (1) CA965527A (ja)
DE (1) DE2260335A1 (ja)
FR (1) FR2163667B1 (ja)
GB (1) GB1370672A (ja)
NL (1) NL7216932A (ja)
SE (1) SE377253B (ja)
ZA (1) ZA728822B (ja)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138713A (ja) * 1974-04-22 1975-11-05
NL7413451A (nl) * 1974-10-14 1976-04-20 Philips Nv Transmissiestelsel.
JPS5167013A (ja) * 1974-12-09 1976-06-10 Nissan Motor Ijokenshutsusochiosonaetashingodensosochi
GB1492153A (en) * 1976-05-25 1977-11-16 Standard Telephones Cables Ltd Repeaters
DE2833017C3 (de) * 1978-07-27 1981-08-27 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Fernspeisung von Zwischenstellen einer Einrichtung der Nachrichtenübertragungstechnik
JPS55165041A (en) * 1979-06-11 1980-12-23 Nec Corp Power feeding circuit
DE2933439C2 (de) * 1979-08-17 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Inbetriebnahme der beidseitigen Fernspeisung von Zwischenstellen einer Einrichtung der Nachrichtenübertragungstechnik
DE2948269A1 (de) * 1979-11-30 1981-06-04 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur fernspeisung von zwischenstellen einer einrichtung der nachrichtenuebertragungstechnik mit ueberwachung der ausgangsspannung
DE2948335A1 (de) * 1979-11-30 1981-06-04 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur fernspeisung von zwischenstellen einer einrichtung der nachrichtenuebertragungstechnik mittels gleichstrom-reihenspeisung
DE3105592C2 (de) * 1981-02-16 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur beidseitigen Fernspeisung von Zwischenstellen einer Einrichtung der Nachrichtenübertragungstechnik
JPS62299121A (ja) * 1986-06-13 1987-12-26 ジ−メンス・アクチエンゲゼルシヤフト 遠隔給電ル−プの遠隔給電路の自動接続回路装置
JPH0734550B2 (ja) * 1987-02-02 1995-04-12 富士通株式会社 給電路切替回路
JPH0622353B2 (ja) * 1988-11-28 1994-03-23 富士通株式会社 伝送路の監視方式
US5412716A (en) * 1993-05-03 1995-05-02 At&T Bell Laboratories System for efficiently powering repeaters in small diameter cables
JP3471914B2 (ja) * 1994-09-26 2003-12-02 Ｋｄｄｉ株式会社 光ケーブル給電システムの系切替装置
WO1999053627A1 (en) * 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
GB9828836D0 (en) * 1998-12-30 1999-02-17 Cit Alcatel A powerfeed for a submarine communications systems
US6879625B1 (en) * 2000-05-22 2005-04-12 Globespanvirata, Inc System and method for providing cancellation of interference in a repeater configuration with remote loop powering
GB0115372D0 (en) * 2001-06-22 2001-08-15 Cit Alcatel Power feeding for an optical transmission system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574458A (en) * 1947-06-27 1951-11-13 Sprague Electric Co Remote monitoring system
BE495472A (ja) * 1949-05-03
BE511541A (ja) * 1951-05-21
GB1209183A (en) * 1967-06-12 1970-10-21 Post Office Improvements in or relating to repeaters
GB1263886A (en) * 1970-09-16 1972-02-16 Standard Telephones Cables Ltd Supervisory arrangements for carrier repeater system

Also Published As

Publication number Publication date
BE792883A (fr) 1973-03-30
AU4994372A (en) 1974-06-13
JPS4877709A (ja) 1973-10-19
DE2260335A1 (de) 1973-06-28
NL7216932A (ja) 1973-06-19
SE377253B (sv) 1975-06-23
CA965527A (en) 1975-04-01
FR2163667B1 (ja) 1977-12-23
JPS55934B2 (ja) 1980-01-10
US3868484A (en) 1975-02-25
FR2163667A1 (ja) 1973-07-27
GB1370672A (en) 1974-10-16

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