JPH03270608A - Ultrasonic wave detector - Google Patents
Ultrasonic wave detectorInfo
- Publication number
- JPH03270608A JPH03270608A JP2064142A JP6414290A JPH03270608A JP H03270608 A JPH03270608 A JP H03270608A JP 2064142 A JP2064142 A JP 2064142A JP 6414290 A JP6414290 A JP 6414290A JP H03270608 A JPH03270608 A JP H03270608A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- ultrasonic
- grounding
- arc
- alarm
- 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
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010835 comparative analysis Methods 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 101100310622 Mus musculus Soga1 gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Locating Faults (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Emergency Alarm Devices (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、気中変電所構内に発生する地籍事故箇所を
容易に判定することが可能な超音波検出装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ultrasonic detection device that can easily determine the location of a cadastral accident that occurs within the premises of an aerial substation.
［従来の技術］
従来、気中変電所構内の地絡箇所検出用として変電所構
内にテレビ、モニターを設は地絡事故箇所を画像で表示
させる方式が提案されている。[Prior Art] Conventionally, a method has been proposed in which a television or monitor is installed in the substation premises to display an image of the ground fault location in order to detect a ground fault location within the premises of an aerial substation.
［発明が解決しようとする課題］
ところで、上述のような従来の地絡事故の検出方式では
テレビ、モニターで地籍箇所を判定する場合の欠点とし
て、発生するアーク光を監視するため、周囲環境に起因
する次のような問題点があった。[Problems to be Solved by the Invention] By the way, in the conventional ground fault detection method as described above, one drawback of determining the cadastral location using a television or monitor is that it monitors the generated arc light, so it is difficult to monitor the surrounding environment. The following problems were caused by this problem.
１） 日中と夜間の明るさによる画像表示判別が困難で
ある。1) It is difficult to distinguish between daytime and nighttime image display based on brightness.
２）太陽光の反射による画像のハレー７ヨンで画像を判
別できない。2) The image cannot be distinguished due to haze in the image due to reflection of sunlight.
３）変電所構内の建造物（鉄塔）によるアーク光の遮へ
いによる画像の判断ができない。3) Images cannot be determined due to arc light being blocked by buildings (steel towers) within the substation premises.
この発明は上記のような問題点を解決するためになされ
たもので、周囲環境に左右されることなく安定した地絡
点の位置標定かできる超音波検出装置を得ることを目的
とする。This invention was made to solve the above-mentioned problems, and an object thereof is to obtain an ultrasonic detection device that can stably locate the position of a ground fault point without being influenced by the surrounding environment.
［課題を解決するための手段］
この発明に係る超音波検出装置は、気中変電所構内の所
定位置に設けられた複数の超音波受信器と、この超音波
受信器からの超音波信号を受け、外部環境による周波数
と地絡時に発生するアークから発生する周波数とを比較
分析し、アークによる周波数を判定した際には警報を発
生させる周波数分析器とを備えたものである。[Means for Solving the Problems] The ultrasonic detection device according to the present invention includes a plurality of ultrasonic receivers provided at predetermined positions within the premises of an aerial substation, and an ultrasonic signal from the ultrasonic receivers. The device is equipped with a frequency analyzer that compares and analyzes the frequency caused by the external environment and the frequency generated by the arc that occurs during a ground fault, and issues an alarm when the frequency caused by the arc is determined.
［作 用］
この発明においては、超音波の直線的な指向性を利用し
、複数に配置した超音波受信器のＸ、Ｙ軸２方向の周波
数情報を周波数解析器で受けて地籍発生箇所（アーク光
）を標定し、その状態位置を”表示する。[Function] In this invention, by utilizing the linear directivity of ultrasonic waves, a frequency analyzer receives frequency information in two directions of the X and Y axes from a plurality of ultrasonic receivers, and identifies cadastral occurrence locations ( arc light) and display its status position.
［実施例］
第１図はこの発明に係る超音波検出装置を用いて地絡点
標定を実施する際の標定位置を明確する為の概念図であ
る。[Example] FIG. 1 is a conceptual diagram for clarifying the location position when performing ground fault location using the ultrasonic detection device according to the present invention.
気中点変電所、配置に見立てたブロック（１〉〜（４）
の周囲に超音波受信器としてのセンサ（５）〜（１０）
を設ける。Aerial point substation, blocks that resemble the layout (1> to (4)
Sensors (5) to (10) as ultrasonic receivers around the
will be established.
この配置で例えばブロック（１）の部分に地絡が生じ超
音波が発生すれば、ｘ、ｙ２軸上に夫々配置されたセン
サ（５）並びにセンサ（９）でキャッチする。With this arrangement, for example, if a ground fault occurs in the block (1) and an ultrasonic wave is generated, it will be caught by the sensor (5) and sensor (9) arranged on the x and y axes, respectively.
このようにセンサを２軸上に、マトリックス配置すれば
、地絡箇所を検出することか可能となる。If the sensors are arranged in a matrix on two axes in this way, it becomes possible to detect the ground fault location.
第２図は変電所における各機器群の単線回路系統図であ
り、甲母線（１１）と乙母線（１２）の二重母線を示す
。Figure 2 is a single-line circuit system diagram of each equipment group in the substation, showing the double busbars of the first bus (11) and the second bus (12).
送電ユニット１回線の構成は甲母線（１１）、乙母線０
２）夫々より中側断路器（１３）、乙側断路器（１４）
を経路し遮断器（１５）に到る。The configuration of one power transmission unit line is the first bus line (11) and the second bus line 0.
2) Middle side disconnector (13) and Otsu side disconnector (14) respectively.
and reaches the circuit breaker (15).
この間の気中導体部を上述したブロック単位毎に分離し
甲母線監視区分（１６ａ）、 （１６ｂ） 、乙母線監
視区分（１７ａ）、 （１７ｂ）及び送電線１遮断器区
分（１８ａ）送電線２遮断器区分（１８ｂ）とし、地絡
発生時点のゾーン検出対象範囲とする。The air conductor part between these areas is separated into the above-mentioned block units, and the first bus line monitoring section (16a), (16b), the second bus line monitoring section (17a), (17b), and the transmission line 1 circuit breaker section (18a) are the transmission lines. 2 circuit breaker classification (18b), and the zone detection target range at the time of ground fault occurrence.
第３図は変電所を側面より見た配置図の一例であり、前
述した第２図の回路系統に見合ったセンサ受信の配置例
を示す第３図におけるセンサ（１９）〜（２３）は、−
次元での表示としたが、実際は側面、ある高さより、２
次元的な監視とする。FIG. 3 is an example of a layout diagram of a substation viewed from the side. Sensors (19) to (23) in FIG. −
Although it was shown as a dimension, it is actually a side view, from a certain height, 2
Dimensional monitoring.
第４図はこの発明に係る超音波検出装置の一実施例を示
すブロック図である。センサ（５）でキヤ、チした超音
波信号を周波数解析器（２４）内の増幅器（１２ａ）で
増幅した後Ａ／Ｄ変換器（２４ｂ）でＡ／Ｄ変換し、そ
のディジタルデータに基づいて演算回路（２４ｃ）で処
理分析を行い、分析結果に応じて警報を出力回路（２４
ｄ）を通して表示器（２４ｅ）に供給して表示する。FIG. 4 is a block diagram showing an embodiment of the ultrasonic detection device according to the present invention. The ultrasonic signal captured by the sensor (5) is amplified by the amplifier (12a) in the frequency analyzer (24), then A/D converted by the A/D converter (24b), and based on the digital data. The arithmetic circuit (24c) performs processing analysis and outputs an alarm according to the analysis result (24c).
d) to the display device (24e) for display.
第５図は遮断器・断路器の入・切操作時に発生する音質
特性を示す特性図であり、第６図は地絡発生時のアーク
の音質特性を示す特性図である。FIG. 5 is a characteristic diagram showing the sound quality characteristics generated when a circuit breaker/disconnector is turned on and off, and FIG. 6 is a characteristic diagram showing the sound quality characteristics of an arc when a ground fault occurs.
上述した音質特性は周波数解析器（２４）内の演算回路
部（２４ｃ）で分析され、分析した周波数が地絡時に発
生するアークからの周波数と判定された場合のみ警報を
出力回路（２４ｄ）を介して表示器（２４ｅ）に供給し
て表示させる。The above-mentioned sound quality characteristics are analyzed by the arithmetic circuit section (24c) in the frequency analyzer (24), and only when the analyzed frequency is determined to be the frequency from the arc that occurs during a ground fault, the alarm output circuit (24d) is activated. The signal is supplied to the display device (24e) for display.
なお、上記実施例では気中変電所の地絡標定検出につい
て説明したが超音波が発生する音源があれば別な用途へ
の応用も考えられ、例えばプラント設備等の大規模な機
器構成群でのアーク（爆発）位置の検出も可能である。Although the above example describes ground fault location detection in an aerial substation, it can also be applied to other uses if there is a sound source that generates ultrasonic waves. It is also possible to detect the arc (explosion) position.
［発明の効果］
以上詳述したようにこの発明は、複数の超音波受信器と
周波数分析器とを備え、外部環境による周波数と地絡時
に発生するアークから発生する周波数とを比較分析し、
アークによる周波数を判定した際には警報を発生するよ
うにしたので、周囲環境に左右されることなく安定した
地絡点の位置標示ができ、また直接的に変電機器側に超
音波受信器を取付ることなく敷地周辺のスペースに超音
波検出装置を設けることが出来既設変電所へも容易に設
置することか可能となり、超音波受信器自身は安価であ
り、組合せて複数個取付ることにより精度の高い地絡検
出位置の見極めが容易となる効果を奏する。[Effects of the Invention] As detailed above, the present invention includes a plurality of ultrasonic receivers and a frequency analyzer, and compares and analyzes the frequency caused by the external environment with the frequency generated from the arc generated during a ground fault.
Since an alarm is generated when the frequency caused by the arc is determined, it is possible to stably indicate the position of the ground fault point without being affected by the surrounding environment, and it is also possible to directly attach an ultrasonic receiver to the substation equipment. Ultrasonic detectors can be installed in spaces around the site without having to be installed, and can be easily installed in existing substations.The ultrasonic receivers themselves are inexpensive, and can be installed in multiple units in combination. This has the effect of making it easier to determine the ground fault detection position with high accuracy.
第１図はこの発明の基礎となる標定位置割出しの概念図
、第２図は代表的な変電所の単線回路系統図、第３図は
変電所の側面と、センサの配置構成を示す配置図、第４
図はこの発明に係る超音波検出装置の一実施例を示すブ
ロック図、第５図は遮断器、断路器の操作時の音質特性
を示す特性図、第６図は地絡発生時のアークの音質特性
を示す特性図である。
図において、（５）〜（１０）はセンサ、（２４）は周
波数分析器である。
代
埋入 曾
我
道
照
第２図
１１： 中台１象
１２：ｚ遣璋
１３＝ 甲便１藺１４賂
１４：Ｚ領′１断路岱
１５：洟断器
１８ｂ＝虐電縁２遅肪恭区曾
５〜１０：センサFigure 1 is a conceptual diagram of the orientation position indexing that is the basis of this invention, Figure 2 is a single-line circuit diagram of a typical substation, and Figure 3 is a side view of the substation and its layout showing the arrangement of sensors. Figure, 4th
Figure 5 is a block diagram showing an embodiment of the ultrasonic detection device according to the present invention, Figure 5 is a characteristic diagram showing sound quality characteristics when operating a circuit breaker or disconnector, and Figure 6 is a diagram showing the sound quality characteristics when operating a circuit breaker or disconnector. FIG. 3 is a characteristic diagram showing sound quality characteristics. In the figure, (5) to (10) are sensors, and (24) is a frequency analyzer. Substitute Soga Dosho 2nd figure 11: Central Taiwan 1 elephant 12: Z Kiyoshi 13 = Kouben 1 14 bribes 14: Z territory'1 danrodai 15: 洟切器 18b = Gakudenen 2 late fat Kyo Ward Zeng 5-10: Sensor
Claims (1)
信器と、この超音波受信器からの超音波信号を受け、外
部環境による周波数と地絡時に発生するアークから発生
する周波数とを比較分析し、アークによる周波数を判定
した際には警報を発生させる周波数分析器とを備えたこ
とを特徴とする超音波検出装置。A plurality of ultrasonic receivers are installed at predetermined positions within the substation premises, and the ultrasonic signals from these ultrasonic receivers are received to detect the frequency caused by the external environment and the frequency generated by the arc that occurs during a ground fault. An ultrasonic detection device characterized by comprising a frequency analyzer that performs comparative analysis and generates an alarm when the frequency caused by the arc is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2064142A JPH03270608A (en) | 1990-03-16 | 1990-03-16 | Ultrasonic wave detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2064142A JPH03270608A (en) | 1990-03-16 | 1990-03-16 | Ultrasonic wave detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03270608A true JPH03270608A (en) | 1991-12-02 |
Family
ID=13249533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2064142A Pending JPH03270608A (en) | 1990-03-16 | 1990-03-16 | Ultrasonic wave detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03270608A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012513738A (en) * | 2008-12-22 | 2012-06-14 | コミッサリア ア レネルジー アトミーク エ オ エナジーズ アルタナティブス | Method for detecting an electric arc in a photovoltaic power generator |
-
1990
- 1990-03-16 JP JP2064142A patent/JPH03270608A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012513738A (en) * | 2008-12-22 | 2012-06-14 | コミッサリア ア レネルジー アトミーク エ オ エナジーズ アルタナティブス | Method for detecting an electric arc in a photovoltaic power generator |
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