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 FEEDInfo
- 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
Links
- 230000005540 biological transmission Effects 0.000 title abstract 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
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
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Devices For Supply Of Signal Current (AREA)
- Direct Current Feeding And Distribution (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Small-Scale Networks (AREA)
- Control Of Voltage And Current In General (AREA)
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).
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)
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 | |
KR102135622B1 (en) | 2017-12-05 | 2020-07-20 | 히타치 존슨 컨트롤즈 쿠쵸 가부시키가이샤 | Indoor unit of air conditioner |
Family Cites Families (2)
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 |
-
1979
- 1979-11-30 DE DE19792948335 patent/DE2948335A1/en not_active Withdrawn
-
1980
- 1980-11-26 AT AT80107393T patent/ATE3685T1/en active
- 1980-11-26 DE DE8080107393T patent/DE3063630D1/en not_active Expired
- 1980-11-26 EP EP80107393A patent/EP0030004B1/en not_active Expired
- 1980-11-28 JP JP16684580A patent/JPS5691540A/en active Granted
- 1980-11-28 DK DK506580A patent/DK506580A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0030004B1 (en) | 1983-06-01 |
DE2948335A1 (en) | 1981-06-04 |
EP0030004A1 (en) | 1981-06-10 |
JPS6135734B2 (en) | 1986-08-14 |
ATE3685T1 (en) | 1983-06-15 |
DE3063630D1 (en) | 1983-07-07 |
JPS5691540A (en) | 1981-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ATS | Application withdrawn |