FR2254160A1 - Coupling device for carrier systems - esp. for systems using insulated overhead earthing conductors in HV transmission lines - Google Patents
Coupling device for carrier systems - esp. for systems using insulated overhead earthing conductors in HV transmission linesInfo
- Publication number
- FR2254160A1 FR2254160A1 FR7439723A FR7439723A FR2254160A1 FR 2254160 A1 FR2254160 A1 FR 2254160A1 FR 7439723 A FR7439723 A FR 7439723A FR 7439723 A FR7439723 A FR 7439723A FR 2254160 A1 FR2254160 A1 FR 2254160A1
- Authority
- FR
- France
- Prior art keywords
- systems
- coupling device
- esp
- transmission lines
- insulated overhead
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5483—Systems for power line communications using coupling circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5483—Systems for power line communications using coupling circuits
- H04B2203/5487—Systems for power line communications using coupling circuits cables
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Coils Or Transformers For Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The coupling device practically short-circuits high mains frequency and surge currents. It comprises a transformer with a ferrite core, with the carrier frequency applied to or collected from a first winding, while the second winding is connected in parallel with lightning arresters, which are, in turn, connected to the power line. The carrier frequency characteristic impedance and maximum mains frequency and surge currents are matched to the power line. The ferrite core must not be fully saturated by the leakage current flowing in normal operation and is so dimensioned to avoid this phenomenon. The core can also be provided with an air gap.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD17517573 | 1973-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2254160A1 true FR2254160A1 (en) | 1975-07-04 |
FR2254160B3 FR2254160B3 (en) | 1977-08-26 |
Family
ID=5493778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7439723A Granted FR2254160A1 (en) | 1973-12-07 | 1974-12-04 | Coupling device for carrier systems - esp. for systems using insulated overhead earthing conductors in HV transmission lines |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2430185A1 (en) |
FR (1) | FR2254160A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0156557A2 (en) * | 1984-03-06 | 1985-10-02 | Controlonics Corporation | Transceiver for multi-drop local area networks |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2707262C3 (en) * | 1977-02-19 | 1984-11-08 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Coupling unit for coupling communication devices or communication cables to high-voltage cables or power cables |
KR970002006B1 (en) * | 1990-11-30 | 1997-02-20 | 가부시기가이샤 히다찌 세이사꾸쇼 | Surge suppression of electric apparatus |
DE4409618A1 (en) * | 1994-03-21 | 1995-09-28 | Pfisterer Elektrotech Karl | Device for data transmission in power supply cable networks |
-
1974
- 1974-06-24 DE DE19742430185 patent/DE2430185A1/en active Pending
- 1974-12-04 FR FR7439723A patent/FR2254160A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0156557A2 (en) * | 1984-03-06 | 1985-10-02 | Controlonics Corporation | Transceiver for multi-drop local area networks |
EP0156557A3 (en) * | 1984-03-06 | 1987-07-15 | Controlonics Corporation | Transceiver for multi-drop local area networks |
Also Published As
Publication number | Publication date |
---|---|
DE2430185A1 (en) | 1975-06-12 |
FR2254160B3 (en) | 1977-08-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |