JPS61203736A - Distribution line carrier ground return device - Google Patents

Distribution line carrier ground return device

Info

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
Application number
JP4534285A
Other languages
Japanese (ja)
Inventor
Koji Maeda
耕二 前田
Yoshihiro Fukumoto
福本　佳弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4534285A priority Critical patent/JPS61203736A/en
Publication of JPS61203736A publication Critical patent/JPS61203736A/en
Pending legal-status Critical Current

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

PURPOSE:To send a sufficient signal voltage to a reception station by providing a reactor compensating the signal attenuation due to the ground capacitance of a line in parallel with each transmission and reception station so as to cancel the signal leakage effect. CONSTITUTION:A signal current is transmitted from a master station 3 (or slave station 4) and received by the slave station 4 (or master station 3) via a distribution line 2, and returns to the original sending end through ground. In such a case, the effect of leakage of a signal current though a ground stray capacity 5 of the line is cancelled by adjusting the variable reactor 6a of the master station or the variable reactor 6b of the slave station so as to send the sufficient level of signal voltage to the reception station.

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.

〔従来の技術〕[Conventional technology]

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.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

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.

〔問題点を解決するための手段〕[Means for solving problems]

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.

〔作用〕[Effect]

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.

〔実施例〕〔Example〕

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.

〔発明の効果〕〔Effect of the invention〕

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] 配電線の離れた位置に送受信局を接続し、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.
JP4534285A 1985-03-07 1985-03-07 Distribution line carrier ground return device Pending JPS61203736A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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