JPS637624B2 - - Google Patents

Info

Publication number
JPS637624B2
JPS637624B2 JP15045880A JP15045880A JPS637624B2 JP S637624 B2 JPS637624 B2 JP S637624B2 JP 15045880 A JP15045880 A JP 15045880A JP 15045880 A JP15045880 A JP 15045880A JP S637624 B2 JPS637624 B2 JP S637624B2
Authority
JP
Japan
Prior art keywords
receiving device
antenna
distribution line
high voltage
accident
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.)
Expired
Application number
JP15045880A
Other languages
Japanese (ja)
Other versions
JPS5773684A (en
Inventor
Chuji Okamura
Tadakatsu Watanabe
Koji Ito
Yukio Fujiwara
Hirotoshi Nagata
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
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
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 Tokyo Electric Power Co Inc, Mitsubishi Electric Corp filed Critical Tokyo Electric Power Co Inc
Priority to JP15045880A priority Critical patent/JPS5773684A/en
Publication of JPS5773684A publication Critical patent/JPS5773684A/en
Publication of JPS637624B2 publication Critical patent/JPS637624B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Locating Faults (AREA)

Description

【発明の詳細な説明】 この発明は、高電圧パルス印加法による架空配
電線路の事故点の探査に使用するアンテナ付きの
受信装置の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a receiving device equipped with an antenna used for detecting fault points on overhead power distribution lines using a high voltage pulse application method.

一般に、架空配電線路に接地事故が生じたとき
は高電圧パルス印加法により事故点の探査を行つ
ている。これは停電状態の線路区間に高電圧パル
スを印加し、配電線路を流れるパルス電流をアン
テナ付きの受信装置により検出して接地事故点の
探査を行うものである。まずこの様な装置の探査
原理を説明する。第１図は接地事故点を探査して
いる状態を示す図である。図において、１は抵抗
及びコンデンサ等で構成される高電圧パルス発生
器、２は架空配電線路、３は大地、４は接地事故
点、Rgは接地事故により生ずる抵抗、Cgは接地
事故点４以降の対地静電容量、５は配電線に近接
させたアンテナ、６は受信装置、７はアンテナ５
と受信装置６を接続するリード線である。この装
置において、高電圧パルス発生器１により、配電
線２と大地３との間に、高電圧パルスを印加し、
アンテナ５付きの受信装置６で接地事故点を探査
している。 Generally, when a grounding fault occurs on an overhead power distribution line, a high voltage pulse application method is used to locate the fault point. This involves applying a high-voltage pulse to a line section that is in a power outage state, and detecting the pulse current flowing through the distribution line using a receiver equipped with an antenna to locate the point of a ground fault. First, the exploration principle of such a device will be explained. FIG. 1 is a diagram showing a state in which a grounding accident point is being searched. In the figure, 1 is a high-voltage pulse generator composed of resistors and capacitors, etc., 2 is an overhead distribution line, 3 is the ground, 4 is a ground fault point, Rg is the resistance caused by a ground fault, and Cg is a ground fault point 4 and beyond. , 5 is the antenna placed close to the distribution line, 6 is the receiving device, and 7 is the antenna 5.
This is a lead wire that connects the receiving device 6 and the receiving device 6. In this device, a high voltage pulse is applied between a power distribution line 2 and the ground 3 by a high voltage pulse generator 1,
A receiving device 6 with an antenna 5 is used to search for a grounding fault point.

第２図に高電圧パルス発生器１の出力する高電
圧パルスの発生周期を示す。図において、T1は
高電圧パルスのパルス幅、T2は高電圧パルスを
発生する周期、T3は事故点探査に要する時間を
示す。T2は一般的に３〜６秒周期で、T3は事故
内容によつては数時間に及ぶこともある。 FIG. 2 shows the generation cycle of high voltage pulses output by the high voltage pulse generator 1. In the figure, T 1 is the pulse width of the high voltage pulse, T 2 is the cycle of generating the high voltage pulse, and T 3 is the time required to locate the fault point. T 2 generally has a period of 3 to 6 seconds, and T 3 can last several hours depending on the nature of the accident.

第３図は線路に事故がないときの高電圧パルス
発生器が発生する電圧波形である。この様な高電
圧パルスの印加により、線路に流れる電流を検知
し１回積分すれば、(イ)線路に接地事故がない場合
には、その積分値は零に、(ロ)事故があつて、その
事故までの区間では、その積分値は事故電流値
に、(ハ)事故があつて、その事故を通り過ぎた後の
区間ではその積分値は零になるので、一定時間後
に積分値を読みとることにより上記３種類の値を
判別して事故点の探査を行なえることになる。 FIG. 3 shows the voltage waveform generated by the high voltage pulse generator when there is no fault on the line. By applying such a high voltage pulse, the current flowing through the line is detected and integrated once.(a) If there is no grounding fault on the line, the integrated value will be zero, and (b) If there is a grounding fault, the integrated value will be zero. , in the section up to the accident, the integral value is the fault current value, (c) In the section after the accident occurs, the integral value becomes zero, so read the integral value after a certain period of time. This makes it possible to identify the above three types of values and search for the accident point.

しかしながら、分岐線で事故のない配電線路お
よび、事故があつても事故点を過ぎた位置では、
上述の如く事故電流値に零になるため受信装置６
の指示がなくなることになる。従つて配電線路２
に高電圧パルスが印加されていない状態、または
高電圧パルスが印加されていて探査している配電
線路に事故がない状態なのか判別ができない欠点
があつた。また、夜間に事故点探査を行う場合に
は暗くて受信装置６の指示が読みとりにくいとい
う欠点があり、指示部を照明する場合受信装置６
の消費電流が増加するので、照明用電池を別に設
けなければならないという欠点があつた。 However, on distribution lines where there are no accidents on branch lines, and even if there is an accident, at a position past the accident point,
As mentioned above, since the fault current value becomes zero, the receiving device 6
instructions will be removed. Therefore, distribution line 2
There was a drawback that it was not possible to determine whether the high voltage pulse was not being applied or whether the high voltage pulse was being applied and there was no fault in the distribution line being investigated. In addition, when conducting accident point exploration at night, there is a drawback that it is difficult to read the instructions on the receiving device 6 because it is dark.
Since the current consumption increases, a lighting battery has to be provided separately, which is a drawback.

この発明は上記のような従来のものの欠点を除
去するためになされたものであり、受信装置に、
パルス電流を検出後所定時間の間、動作中表示を
するとともに指示部の照度を増す機能を設けて、
昼夜を問わず接地事故点の探査が容易にできる受
信装置を提供することを目的としている。 This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it provides a receiving device with
A function is provided to indicate that the device is in operation and increase the illuminance of the indicator for a predetermined period of time after detecting a pulse current.
It is an object of the present invention to provide a receiving device that can easily search for a grounding accident point regardless of day or night.

以下、この発明の一実施例について説明する。 An embodiment of the present invention will be described below.

第４図はこの発明の配電線事故点探査用の受信
装置の一実施例を示すブロツク図で、６は受信装
置であり、９は増巾器、１０はゲート、１１は積
分器、１２は検出表示ゲート、１３は検出メー
タ、１４はゲート信号発生器、１５は検出メータ
ー照明器、１５は動作表示器により構成されてい
る。 FIG. 4 is a block diagram showing an embodiment of a receiving device for detecting fault points in distribution lines according to the present invention, where 6 is a receiving device, 9 is an amplifier, 10 is a gate, 11 is an integrator, and 12 is a receiving device. It is composed of a detection display gate, 13 a detection meter, 14 a gate signal generator, 15 a detection meter illuminator, and 15 an operation indicator.

次に、この受信装置６の動作について説明す
る。先ず、アンテナ５からの出力信号を増幅器９
で充分な大きさに増幅して、この信号の最初の時
点をゲート信号発生器１４が検出して一連のゲー
ト開信号を発生する。これにより、動作表示器１
６はゲート信号発生器１４からの信号により所定
時間表示されることになり、配電線事故点探査用
の受信装置６がアンテナ５からの信号を受信して
正常に動作中である事を表示する。また、指示部
照明器１５は受信装置６の電源スイツチが入れら
れると検出メーター１３がぼんやりと見える程度
の照度で照明しており、ゲート信号発生器１４か
らの信号により、検出メーター１３の指示が充分
読みとれるだけの照度に上げる機能をもつもので
ある。この装置により、アンテナ５からの信号を
受信して正常に動作中に、動作中であることを動
作表示器１６にて表示するとともに、検出メータ
ー照明器１５により検出メーター１３の表示を読
み取り易くすることができる。 Next, the operation of this receiving device 6 will be explained. First, the output signal from the antenna 5 is sent to the amplifier 9.
The first instant of this signal is detected by gate signal generator 14 to generate a series of gate open signals. As a result, operation indicator 1
6 is displayed for a predetermined period of time by the signal from the gate signal generator 14, and indicates that the receiving device 6 for detecting fault points in the distribution line has received the signal from the antenna 5 and is operating normally. . The indicator illuminator 15 illuminates the detection meter 13 with such illuminance that the detection meter 13 is dimly visible when the power switch of the receiving device 6 is turned on. It has the function of increasing the illuminance to a level that is sufficient for reading. With this device, when the signal from the antenna 5 is received and the device is operating normally, the operation indicator 16 indicates that the device is operating, and the detection meter illuminator 15 makes it easy to read the display on the detection meter 13. be able to.

なお、上記実施例では、動作表示器１６と指示
部照明器１５とを分離して構成しているが、動作
表示器１６を指示部照明器１５に含めてもよい。
また、検出メーター１３として液晶表示器を使用
する場合は、液晶表示器に上記動作表示器１６を
含めてもよい。 In the above embodiment, the operation indicator 16 and the instruction section illuminator 15 are configured separately, but the operation indicator 16 may be included in the instruction section illuminator 15.
Further, when a liquid crystal display is used as the detection meter 13, the operation display 16 may be included in the liquid crystal display.

また、アンテナ５はサーチコイル式でも、磁電
変換素子（例えばホール素子等）を用いても良
い。 Further, the antenna 5 may be of a search coil type or may use a magnetoelectric conversion element (for example, a Hall element).

以上の様に、この発明によればアンテナからの
出力信号より、所定時間の間、受信装置の動作中
表示および検出メータ指示部の照度を増す機能を
受信装置に設けたので、受信装置の消費電流が節
約でき、昼夜を問わず、操作性を損なうことなく
事故点の探査ができる効果がある。 As described above, according to the present invention, since the receiving device is provided with a function of increasing the illuminance of the operating display of the receiving device and the detection meter indicator for a predetermined period of time based on the output signal from the antenna, the consumption of the receiving device is increased. This has the effect of saving electric current and allowing the location of an accident to be detected day or night without compromising operability.

特に、検出メーターに液晶表示器を使用した場
合には、夜間の事故点探査では上記照明は非常に
有効となる。 In particular, when a liquid crystal display is used as a detection meter, the above-mentioned illumination is very effective in detecting accident points at night.

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

第１図は接地事故点を探査している状態を示す
図、第２図は高電圧パルス発生器が出力する高電
圧パルスの発生周期を示す図、第３図は線路に事
故がないときの高電圧パルス発生器の発生する電
圧波形を示す図、第４図はこの発明による配電線
事故点探査用の受信装置の一実施例を示すブロツ
ク図である。図において、５はアンテナ、６は受
信装置、１３は表示器である。なお、図中同一符
号は同一または相当部分を示す。 Figure 1 shows the state in which the ground fault point is being searched, Figure 2 shows the generation cycle of high voltage pulses output by the high voltage pulse generator, and Figure 3 shows the situation when there are no faults on the track. FIG. 4 shows a voltage waveform generated by a high voltage pulse generator, and FIG. 4 is a block diagram showing an embodiment of a receiving device for detecting a fault point in a distribution line according to the present invention. In the figure, 5 is an antenna, 6 is a receiving device, and 13 is a display. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] １ 架空配電線の接地事故点を探査するために、
上記配電線に繰返し印加される高電圧パルスによ
り、上記配電線に流れるパルス電流を検出するア
ンテナ付きの配電線事故探査用受信装置におい
て、上記アンテナで受信した信号を検知して所定
時間事故の状態を表示する表示器周辺の照度を増
加させる回路を備えたことを特徴とする受信装
置。1. To investigate the ground fault point of overhead power distribution lines,
In a distribution line accident detection receiving device equipped with an antenna that detects pulsed current flowing through the distribution line due to high voltage pulses repeatedly applied to the distribution line, the signal received by the antenna is detected and an accident state is detected for a predetermined period of time. 1. A receiving device comprising a circuit for increasing illuminance around a display device that displays.
JP15045880A 1980-10-27 1980-10-27 Receiver Granted JPS5773684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15045880A JPS5773684A (en) 1980-10-27 1980-10-27 Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15045880A JPS5773684A (en) 1980-10-27 1980-10-27 Receiver

Publications (2)

Publication Number Publication Date
JPS5773684A JPS5773684A (en) 1982-05-08
JPS637624B2 true JPS637624B2 (en) 1988-02-17

Family

ID=15497362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15045880A Granted JPS5773684A (en) 1980-10-27 1980-10-27 Receiver

Country Status (1)

Country Link
JP (1) JPS5773684A (en)

Also Published As

Publication number Publication date
JPS5773684A (en) 1982-05-08

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