JP2916075B2 - Distribution system disconnection detection method - Google Patents
Distribution system disconnection detection methodInfo
- Publication number
- JP2916075B2 JP2916075B2 JP6005471A JP547194A JP2916075B2 JP 2916075 B2 JP2916075 B2 JP 2916075B2 JP 6005471 A JP6005471 A JP 6005471A JP 547194 A JP547194 A JP 547194A JP 2916075 B2 JP2916075 B2 JP 2916075B2
- Authority
- JP
- Japan
- Prior art keywords
- disconnection
- switch
- phase
- information
- central unit
- 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 - Fee Related
Links
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Locating Faults (AREA)
- Alarm Systems (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【産業上の利用分野】この発明は、配電系統の断線検出
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting disconnection of a power distribution system.
【0002】[0002]
【従来の技術】図2は従来の断線検出方法を説明するた
めの説明図である。これは、1つの開閉器子局を示すも
ので、かかる開閉器子局1が配電線4上に所定の間隔を
以て複数個配置される。各開閉器子局1は例えば3相の
うちの2相間、ここではa−c相間に接続されて(これ
により、電源が供給されることになる)、センサ6によ
り各相の電圧,電流の状態から断線,欠相,短絡,地絡
などを検出するようにしている。2. Description of the Related Art FIG. 2 is an explanatory diagram for explaining a conventional disconnection detecting method. This shows one switch slave station, and a plurality of such switch slave stations 1 are arranged on the distribution line 4 at predetermined intervals. Each switch slave station 1 is connected, for example, between two of the three phases, here, between a and c phases (to be supplied with power), and the sensor 6 detects the voltage and current of each phase. Disconnection, open phase, short circuit, ground fault, etc. are detected from the state.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記の
ようにすると、開閉器子局の電源喪失により中央(装
置)との通信ができなくなるため、開閉器子局がつなが
る相、すなわちa−c相間に接続されるとすると、a
相,c相の断線が検出できなくなるという問題がある。
そこで、直ちにバッテリを持たせることが考えられる
が、これには経年変化があること、開閉器子局数が膨大
であるため、取り付け,取り替えが極めて困難でその監
視も容易ではないことから、とても実用的とはなり難
い、などの問題もある。したがって、この発明の課題は
バッテリを用いることなく、確実に断線を検出し得るよ
うにすることにある。However, in the above case, since the communication with the center (device) cannot be performed due to the loss of power of the switch slave station, the phase to which the switch slave station is connected, that is, the ac phase Is connected to
There is a problem that disconnection of the phases c and c cannot be detected.
Therefore, it is conceivable to have a battery immediately. However, since this is subject to aging and the number of switchgear slave stations is enormous, installation and replacement are extremely difficult and monitoring is not easy. There is also a problem that it is difficult to be practical. Therefore, an object of the present invention is to make it possible to reliably detect disconnection without using a battery.
【0004】[0004]
【課題を解決するための手段】このような課題を解決す
るため、この発明では、3相の配電線上に所定の間隔を
以て複数の開閉器子局を配置し、その各開閉器子局から
の情報を通信手段を介して中央装置にて収集することに
より配電線の断線を検出するに当たり、前記各開閉器子
局を第1相と第2相との間に接続して電源を供給すると
ともに電圧,電流の異常から少なくとも断線を検出する
機能を持たせ、第3相の断線およびその区間は関連する
開閉器子局からの断線を示す情報にもとづき検出し、第
1,第2相の断線およびその区間は前記中央装置からの
通信に対して無応答となった開閉器子局がいずれである
かという情報と、それ以降の開閉器子局の全てが前記中
央装置からの通信に対して無応答であるという情報とか
ら検出することを特徴としている。In order to solve such a problem, according to the present invention, a plurality of switch substations are arranged at predetermined intervals on a three-phase distribution line, and the switch substations from each of the switch substations are arranged. In detecting a disconnection of a distribution line by collecting information at a central unit via a communication means, each switch substation is connected between a first phase and a second phase to supply power. A function of detecting at least a disconnection from an abnormality in voltage and current is provided. The disconnection of the third phase and its section are detected based on information indicating the disconnection from the associated switch substation, and the disconnection of the first and second phases is performed. And the section is information on which switch slave station has become unresponsive to the communication from the central unit, and all of the subsequent switch slave units are in response to the communication from the central unit. To detect from the information that there is no response. It is a symptom.
【0005】[0005]
【作用】配電線に所定間隔で配置される個々の開閉器子
局に電圧,電流の状態から少なくとも断線を検出する機
能を持たせ、中央(装置)において全開閉器子局からの
情報を参照することにより、バッテリを用いることな
く、確実に断線およびその断線区間を検出可能とする。[Function] Each switch substation located at a predetermined interval on a distribution line has a function of detecting at least a disconnection from the voltage and current states, and the information from all switch substations is referred to at the center (device). By doing so, it is possible to reliably detect the disconnection and the disconnection section without using a battery.
【0006】[0006]
【実施例】図1はこの発明の実施例を示す概要図で、1
1〜1nは開閉器子局、21〜2nは開閉器、3は変電
所に設けられる処理装置(CPU)、4は配電線、5は
通信線をそれぞれ示している。なお、開閉器子局11〜
1nは、ここでもa−c相間に接続されているものとす
る。いま、このような構成において、例えば同図の点P
1で断線が生じたものとする。このとき、開閉器子局1
1〜1nの制御電源がa,c線間に接続されているた
め、断線がa線またはc線の場合と、それ以外の場合と
に分けて考える。FIG. 1 is a schematic diagram showing an embodiment of the present invention.
Reference numerals 1 to 1n indicate switch substations, 21 to 2n indicate switches, 3 indicates a processing unit (CPU) provided in a substation, 4 indicates a distribution line, and 5 indicates a communication line. In addition, switch child station 11-
1n is again connected between the a and c phases. Now, in such a configuration, for example, a point P in FIG.
It is assumed that disconnection has occurred in 1. At this time, switchgear slave station 1
Since the control power supplies 1 to 1n are connected between the lines a and c, the case where the disconnection is the line a or the line c and the case other than that are considered separately.
【0007】まず、点P1の断線がa,c線以外で生じ
たときは、開閉器子局11と12では正常と検出され、
開閉器子局13以降で断線と検出されることから、CP
U3でこれらの情報を解析することにより、開閉器子局
12と13との間で断線が生じたことを検出することが
できる。これに対し、点P1の断線がa線またはc線で
生じたときは、開閉器子局11と12では正常と検出
し、その旨の応答を中央(装置)に伝送する。開閉器子
局13とそれ以降の開閉器子局では電源がなくなるた
め、中央(装置)からの通信に対して無応答となる。そ
こで、CPU3でこれらの情報を総合的に解析すること
により、開閉器子局12と13との間で断線が生じたこ
とを検出するようにする。なお、このとき各開閉器子局
自体は正常であること、通信線5には異常がなく通信も
正常に行なわれることなどが前提条件となる。First, when the disconnection of the point P1 occurs other than the lines a and c, the switch slave stations 11 and 12 detect normality,
Since the disconnection is detected after the switch slave station 13, the CP
By analyzing these pieces of information in U3, it is possible to detect that a disconnection has occurred between the switch slave stations 12 and 13. On the other hand, when the disconnection at the point P1 occurs on the a-line or the c-line, the switch slave stations 11 and 12 detect that they are normal, and transmit a response to that effect to the center (device). Since there is no power at the switch slave station 13 and subsequent switch slave stations, there is no response to communication from the center (device). Therefore, the CPU 3 comprehensively analyzes these pieces of information to detect that a disconnection has occurred between the switch slave stations 12 and 13. At this time, it is a precondition that each switch slave station itself is normal, that the communication line 5 has no abnormality and that communication is performed normally.
【0008】[0008]
【発明の効果】この発明によれば、配電線に所定間隔で
配置される個々の開閉器子局に電圧,電流の異常から少
なくとも断線状態を検出する機能を持たせ、全開閉器子
局からの情報を総合判断することにより、バッテリを用
いることなく確実に断線とその区間を検出し得る利点が
もたらされる。According to the present invention, the individual switch substations arranged at predetermined intervals on the distribution line are provided with a function of detecting at least a disconnection state from abnormalities in voltage and current. Is comprehensively determined, the advantage that the disconnection and the section thereof can be reliably detected without using a battery.
【図1】この発明の実施例を示す概要図である。FIG. 1 is a schematic diagram showing an embodiment of the present invention.
【図2】開閉器子局の一般的な例を示す構成図である。FIG. 2 is a configuration diagram illustrating a general example of a switch slave station.
1,11〜1n…開閉器子局、2,21〜2n…開閉
器、3…処理装置(CPU)、4…配電線、5…通信
線、6…センサ。1,11-1n ... Switch slave station, 2,21-2n ... Switch, 3 ... Processor (CPU), 4 ... Distribution line, 5 ... Communication line, 6 ... Sensor.
フロントページの続き (73)特許権者 000006013 三菱電機株式会社 東京都千代田区丸の内二丁目2番3号 (72)発明者 三箇 喜与治 大阪府大阪市北区中之島三丁目3番22号 関西電力株式会社内 (72)発明者 信方 智彰 大阪府大阪市北区中之島三丁目3番22号 関西電力株式会社内 (72)発明者 吉村 康伸 東京都港区芝浦一丁目1番1号 株式会 社 東芝 本社事務所内 (72)発明者 長尾 晃一 茨城県日立市大みか町五丁目2番1号 株式会社 日立製作所 大みか工場内 (72)発明者 桑山 仁平 神奈川県川崎市川崎区田辺新田1番1号 富士電機株式会社内 (72)発明者 丹下 誠視 兵庫県神戸市兵庫区和田崎町一丁目1番 2号 三菱電機株式会社 制御製作所内 (56)参考文献 特開 昭64−85528(JP,A) 特公 平7−1980(JP,B2) 特公 平7−1981(JP,B2) 実公 平7−33177(JP,Y2) (58)調査した分野(Int.Cl.6,DB名) G01R 31/08 Continued on the front page (73) Patent holder 000006013 Mitsubishi Electric Corporation 2-3-2 Marunouchi, Chiyoda-ku, Tokyo (72) Inventor Kiyoji Mika 3-2-2-3 Nakanoshima, Kita-ku, Osaka-shi, Osaka Kansai Electric Power Stock In-house (72) Inventor Tomoaki Nobukata 3-2-2 Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture Inside Kansai Electric Power Company (72) Inventor Yasunobu Yoshimura 1-1-1, Shibaura, Minato-ku, Tokyo Toshiba Corporation Inside the head office (72) Inventor Koichi Nagao 5-2-1 Omika-cho, Hitachi City, Ibaraki Prefecture Inside Omika Plant, Hitachi, Ltd. Inside Electric Co., Ltd. (72) Inventor Makoto Tange 1-2-1, Wadazaki-cho, Hyogo-ku, Kobe-city, Hyogo Pref. Mitsubishi Electric Corporation Control Factory (56) References JP-A-64-85528 (JP, A) Japanese Patent Publication No. 7-1980 (JP, B2) Japanese Patent Publication No. 7-1981 (JP, B2) JP, Y2) (58) Fields investigated (Int. Cl. 6 , DB name) G01R 31/08
Claims (1)
の開閉器子局を配置し、その各開閉器子局からの情報を
通信手段を介して中央装置にて収集することにより配電
線の断線を検出するに当たり、前記各開閉器子局を第1
相と第2相との間に接続して電源を供給するとともに電
圧,電流の異常から少なくとも断線を検出する機能を持
たせ、第3相の断線およびその区間は関連する開閉器子
局からの断線を示す情報にもとづき検出し、第1,第2
相の断線およびその区間は前記中央装置からの通信に対
して無応答となった開閉器子局がいずれであるかという
情報と、それ以降の開閉器子局の全てが前記中央装置か
らの通信に対して無応答であるという情報とから検出す
ることを特徴とする配電系統の断線検出方法。A plurality of switch substations are arranged at predetermined intervals on a three-phase distribution line, and information from each of the switch substations is collected by a central unit via communication means, thereby providing a distribution line. In order to detect the disconnection of the switch,
A function is provided to connect between the phase and the second phase to supply power and to detect at least a disconnection from abnormalities in voltage and current. Detected based on the information indicating the disconnection, the first and second
The phase disconnection and its section are information on which switch slave station has not responded to the communication from the central unit, and all of the switch slave units thereafter communicate from the central unit. A method for detecting a disconnection in a power distribution system, comprising the step of detecting from the information that there is no response to a power supply.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6005471A JP2916075B2 (en) | 1994-01-21 | 1994-01-21 | Distribution system disconnection detection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6005471A JP2916075B2 (en) | 1994-01-21 | 1994-01-21 | Distribution system disconnection detection method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07209368A JPH07209368A (en) | 1995-08-11 |
JP2916075B2 true JP2916075B2 (en) | 1999-07-05 |
Family
ID=11612166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6005471A Expired - Fee Related JP2916075B2 (en) | 1994-01-21 | 1994-01-21 | Distribution system disconnection detection method |
Country Status (1)
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JP (1) | JP2916075B2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100472502B1 (en) * | 2001-12-26 | 2005-03-08 | 삼성에스디아이 주식회사 | Organic electro luminescence display device |
JP2004053554A (en) * | 2002-07-24 | 2004-02-19 | Hitachi Ltd | Distribution line disconnection detection system |
JP5952127B2 (en) * | 2012-08-08 | 2016-07-13 | 株式会社日立製作所 | Distribution system disconnection accident detection method and distribution facility management system |
JP6770867B2 (en) * | 2016-10-17 | 2020-10-21 | ホーチキ株式会社 | Tunnel disaster prevention system |
JP6899177B2 (en) * | 2016-10-27 | 2021-07-07 | ホーチキ株式会社 | Tunnel disaster prevention system |
JP6709146B2 (en) * | 2016-10-27 | 2020-06-10 | ホーチキ株式会社 | Tunnel disaster prevention system |
CN109444634B (en) * | 2018-11-15 | 2020-11-06 | 国网山西省电力公司大同供电公司 | 10kV overhead line thunderbolt broken string alarm device based on collision sensor |
JP6990746B2 (en) * | 2020-06-11 | 2022-01-12 | ホーチキ株式会社 | Disaster prevention system |
-
1994
- 1994-01-21 JP JP6005471A patent/JP2916075B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JPH07209368A (en) | 1995-08-11 |
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