JPS61203736A - Distribution line carrier ground return device - Google Patents
Distribution line carrier ground return deviceInfo
- Publication number
- JPS61203736A JPS61203736A JP4534285A JP4534285A JPS61203736A JP S61203736 A JPS61203736 A JP S61203736A JP 4534285 A JP4534285 A JP 4534285A JP 4534285 A JP4534285 A JP 4534285A JP S61203736 A JPS61203736 A JP S61203736A
- Authority
- JP
- Japan
- Prior art keywords
- station
- distribution line
- ground
- signal
- return device
- 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
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
- H04B2203/5408—Methods of transmitting or receiving signals via power distribution lines using protocols
-
- 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
- H04B2203/5466—Systems for power line communications using three phases conductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は配電線搬送大地帰路装置、特に、配電線の離
れた位置に送受信局fe接続し、前記配電線を通じて一
方の局から他方の局へ信号を伝送し大地を通じて該他方
の局から該一方の局へ信号金戻す配電線搬送大地帰路装
置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power distribution line carrier ground return device, in particular, a transmitting/receiving station fe is connected to a remote position of a power distribution line, and one station is connected to another station through the power distribution line. This invention relates to a power distribution line carrier ground return device for transmitting signals to and returning signals from the other station to the one station via the ground.
第2図はたとえば特開昭57−28435号公報に示さ
れた従来の高圧配電線搬送大地帰路装置を示す図であシ
、1は変圧器、2a 、 2b 、 2cは高圧配電線
、3は親局、4は子局、5は線路の対地浮遊容量である
。FIG. 2 is a diagram showing a conventional high-voltage distribution line transport ground return device disclosed in, for example, Japanese Unexamined Patent Publication No. 57-28435, in which 1 is a transformer, 2a, 2b, 2c are high-voltage distribution lines, and 3 is a 4 is the master station, 4 is the slave station, and 5 is the ground stray capacitance of the line.
次に動作について説明する。親局3(又は子局4)から
送信された信号電流は、配電線2cを経由して子局4(
又は親局3)で受信された後、大地を通って元の送信端
に戻る。Next, the operation will be explained. The signal current transmitted from the master station 3 (or slave station 4) passes through the distribution line 2c to the slave station 4 (
Or after being received by the master station 3), it passes through the ground and returns to the original transmitting end.
従来の配電線搬送大地帰路装置は以上のよりに構成され
ているので、線路の対地浮遊容量5があると、送信端を
出た信号電流の一部は上記対地浮遊容量5から大地を通
って送信端へ戻ってしまい、受信端には充分な信号電圧
が届かないという問題点があった。Since the conventional power distribution line carrier ground return device is constructed as described above, when there is a stray capacitance 5 to the ground of the line, a part of the signal current leaving the transmitting end is transferred from the floating capacitance 5 to the ground through the ground. There was a problem in that the signal voltage returned to the transmitting end, and a sufficient signal voltage did not reach the receiving end.
この発明は上記のような問題点を解消するためになされ
たもので、線路に対地浮遊容量があっても、充分な信号
電圧を受信端へ伝送できる配電線搬送大地帰路装置を得
ることを目的とする。This invention was made to solve the above-mentioned problems, and its purpose is to provide a distribution line carrier ground return device that can transmit a sufficient signal voltage to the receiving end even if the line has stray capacitance to the ground. shall be.
この発明に係る配電線搬送大地帰路装置は、送受信局と
並列にリアクトルを挿入したものである。The distribution line carrier ground return device according to the present invention has a reactor inserted in parallel with a transmitting/receiving station.
この発明における並列リアクトルは、線路の対地容量に
よる信号電流の漏洩の効果を打ち消し、充分な信号電圧
が受信端に届くよりにする。The parallel reactor in this invention cancels the effect of signal current leakage due to the ground capacitance of the line, allowing sufficient signal voltage to reach the receiving end.
以下、この発明の一実施例を第1図について説明する。 An embodiment of the present invention will be described below with reference to FIG.
第1図において、1は変圧器、2は高圧または低圧の配
電線、3は親局、4は子局、5は配電線の対地浮遊容量
、6aは親局3と並列に設けられた可変リアクトル、6
bは子局4と並列に設けられた可変リアクトルである。In Figure 1, 1 is a transformer, 2 is a high-voltage or low-voltage distribution line, 3 is a master station, 4 is a slave station, 5 is a stray capacitance to the ground of the distribution line, and 6a is a variable voltage installed in parallel with the master station 3. Reactor, 6
b is a variable reactor provided in parallel with the slave station 4;
信号電流は親局3(又は子局4)から送信され、配電a
2を経由して子局4(又は親局3)で受信された後、大
地を通って元の送信端に戻る。この場合、親局側可変リ
アクトル6aまたは子局側可変リアクトル6bを調節す
ることによって、線路の対地浮遊容量5による信号電流
の漏洩の効果を打ち消し、受信局に充分な信号電圧を送
ることができる。The signal current is transmitted from the master station 3 (or slave station 4) and
2 and is received by the slave station 4 (or master station 3), and then returns to the original transmitting end through the ground. In this case, by adjusting the master station side variable reactor 6a or the slave station side variable reactor 6b, it is possible to cancel the effect of signal current leakage due to the ground stray capacitance 5 of the line and send a sufficient signal voltage to the receiving station. .
なお、上記可変リアクトル6a、6bは調節後。Note that the variable reactors 6a and 6b are after adjustment.
その調節値に固定するものであるから、この調節値の固
定リアクトルを用いても同様の効果が得られる。Since the adjustment value is fixed, the same effect can be obtained even if a reactor having a fixed adjustment value is used.
以上のようにこの発明によれば、送受信端に並列リアク
トルを挿入したことにより、線路の対地浮遊容量による
信号電流の漏洩効果を打ち消し。As described above, according to the present invention, by inserting parallel reactors at the transmitting and receiving ends, the leakage effect of the signal current due to the ground stray capacitance of the line is canceled out.
受信局に充分な信号電圧を送ることができるという効果
がある。This has the effect of being able to send a sufficient signal voltage to the receiving station.
第1図はこの発明の一実施例による配電線搬送大地帰路
装置を示す図、第2図は従来の配電線搬送大地帰路装置
を示す図である。
2は高圧または低圧の配電線、3は送受信局(親局)、
4は送受信局(子局)、5は線路の対地浮遊容量、6a
はリアクトル(親局側可変リアクトル)、6bはリアク
トル(子局側可変リアクト/I/)。
なお1図中、同一符号は同一または相当部分を示す。
特許出願人 三菱電機株式会社
代理人 弁理士 1) 澤 博 昭 ′−1(
外2名辷−
第1図
第2図
手続補正書(自発)
616.−2
昭和 年 月 日
持1i′1庁長官殿
1.71¥汁の表示 1、テ願昭60−45342
号2、発明の名称
配電線搬送大地帰路装置
3、補正をする者
代表者 志岐守哉
6、補正の内容FIG. 1 is a diagram showing a distribution line carrier ground return device according to an embodiment of the present invention, and FIG. 2 is a diagram showing a conventional power distribution line carrier ground return device. 2 is a high voltage or low voltage distribution line, 3 is a transmitting/receiving station (master station),
4 is the transmitting/receiving station (slave station), 5 is the ground stray capacitance of the line, 6a
is a reactor (master station side variable reactor), and 6b is a reactor (slave station side variable reactor /I/). In addition, in FIG. 1, the same reference numerals indicate the same or corresponding parts. Patent Applicant Mitsubishi Electric Corporation Agent Patent Attorney 1) Hiroshi Sawa '-1 (
Figure 1 Figure 2 Procedural Amendment (Voluntary) 616. -2 Showa year month date 1i'1 Director-General of the Agency 1.71 yen soup display 1, Te application 1986-45342
No. 2, Name of the invention Distribution line conveyance earth return device 3, Person making the amendment Representative Moriya Shiki 6, Contents of the amendment
Claims (1)
通じて一方の局から他方の局へ信号を伝送し大地を通じ
て該他方の局から該一方の局へ信号を戻す配電線搬送大
地帰路装置において、前記各送受信局と並列に線路の対
地容量による信号減衰防止を補償するリアクトルを設け
たことを特徴とする配電線搬送大地帰路装置。A distribution line carrier ground return device that connects transmitting and receiving stations to distant locations on a distribution line, transmits a signal from one station to another station through the distribution line, and returns the signal from the other station to the one station through the ground. A power distribution line carrier ground return device characterized in that a reactor is provided in parallel with each of the transmitting and receiving stations to compensate for prevention of signal attenuation due to the ground capacitance of the line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4534285A JPS61203736A (en) | 1985-03-07 | 1985-03-07 | Distribution line carrier ground return device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4534285A JPS61203736A (en) | 1985-03-07 | 1985-03-07 | Distribution line carrier ground return device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61203736A true JPS61203736A (en) | 1986-09-09 |
Family
ID=12716610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4534285A Pending JPS61203736A (en) | 1985-03-07 | 1985-03-07 | Distribution line carrier ground return device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61203736A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4409618A1 (en) * | 1994-03-21 | 1995-09-28 | Pfisterer Elektrotech Karl | Device for data transmission in power supply cable networks |
-
1985
- 1985-03-07 JP JP4534285A patent/JPS61203736A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4409618A1 (en) * | 1994-03-21 | 1995-09-28 | Pfisterer Elektrotech Karl | Device for data transmission in power supply cable networks |
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