DK506580A - CLUTCH FOR REMOVAL OF INTERMEDIATIONS IN INFORMATION TRANSMISSION PLANT BY DIFFERENTIAL CIRCUIT FEED - Google Patents

CLUTCH FOR REMOVAL OF INTERMEDIATIONS IN INFORMATION TRANSMISSION PLANT BY DIFFERENTIAL CIRCUIT FEED

Info

Publication number
DK506580A
DK506580A DK506580A DK506580A DK506580A DK 506580 A DK506580 A DK 506580A DK 506580 A DK506580 A DK 506580A DK 506580 A DK506580 A DK 506580A DK 506580 A DK506580 A DK 506580A
Authority
DK
Denmark
Prior art keywords
current
nominal
intermediations
clutch
removal
Prior art date
Application number
DK506580A
Other languages
Danish (da)
Inventor
H Kraicar
A Ziegler
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of DK506580A publication Critical patent/DK506580A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • 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

1. A circuit arrangement for remote feeding intermediate stations of a device relating to communications transmission technology by means of direct current series-feeding, where there is arranged in a remote feeding circuit a series connection of two current sources (Q) in the supply stations (1, 2) of the communications transmission device and connected to one another by means of a pair of power supply leads, and a first current source (Q1 ) contained in a first supply station (1) can emit a constant nominal current and a second current source (Q2 ) contained in a second supply station (2) can emit a constant current that is reduced relative to the nominal current, in such manner that during normal operation only the first supply station (1) emits the nominal current, characterized in that at least the second current source (R2, Q2 ) has a regulating characterized which depends upon the output voltage (U2) in such manner that the nominal current (IN ) is emitted when the output voltage (U2) is in a given region (b) and the reduced constant current (IK3 ) is emitted below this voltage region (b). (Fig. 2, 3).
DK506580A 1979-11-30 1980-11-28 CLUTCH FOR REMOVAL OF INTERMEDIATIONS IN INFORMATION TRANSMISSION PLANT BY DIFFERENTIAL CIRCUIT FEED DK506580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792948335 DE2948335A1 (en) 1979-11-30 1979-11-30 CIRCUIT ARRANGEMENT FOR THE REMOTE POWERING OF INTERMEDIARIES OF A DEVICE FOR THE MESSAGE TRANSMISSION TECHNOLOGY BY MEANS OF DC SERIES POWERING

Publications (1)

Publication Number Publication Date
DK506580A true DK506580A (en) 1981-05-31

Family

ID=6087321

Family Applications (1)

Application Number Title Priority Date Filing Date
DK506580A DK506580A (en) 1979-11-30 1980-11-28 CLUTCH FOR REMOVAL OF INTERMEDIATIONS IN INFORMATION TRANSMISSION PLANT BY DIFFERENTIAL CIRCUIT FEED

Country Status (5)

Country Link
EP (1) EP0030004B1 (en)
JP (1) JPS5691540A (en)
AT (1) ATE3685T1 (en)
DE (2) DE2948335A1 (en)
DK (1) DK506580A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308725A1 (en) * 1983-03-11 1984-09-13 Siemens AG, 1000 Berlin und 8000 München REMOTE FEATURE BUILDING UNIT FOR FACILITIES FOR DC IN-LINE SUPPLY
JPS62299121A (en) * 1986-06-13 1987-12-26 ジ−メンス・アクチエンゲゼルシヤフト Automatic connection circuit device of remote feeding route of remote feeding loop
DE4017133C1 (en) * 1990-05-28 1991-12-19 Sfs Stadler Holding Ag, Heerbrugg, Ch
US20200224889A1 (en) 2017-12-05 2020-07-16 Hitachi-Johnson Controls Air Conditioning, Inc. Indoor unit of air conditioner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792883A (en) * 1971-12-15 1973-03-30 Post Office POWER SUPPLY DEVICE FOR COMMUNICATION SYSTEMS
DE2833017C3 (en) * 1978-07-27 1981-08-27 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for remote feeding of intermediate points of a device of communication technology

Also Published As

Publication number Publication date
DE3063630D1 (en) 1983-07-07
JPS6135734B2 (en) 1986-08-14
JPS5691540A (en) 1981-07-24
EP0030004B1 (en) 1983-06-01
ATE3685T1 (en) 1983-06-15
EP0030004A1 (en) 1981-06-10
DE2948335A1 (en) 1981-06-04

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Legal Events

Date Code Title Description
ATS Application withdrawn