JP2510208Y2 - Predictive maintenance equipment for gas-insulated power equipment - Google Patents
Predictive maintenance equipment for gas-insulated power equipmentInfo
- Publication number
- JP2510208Y2 JP2510208Y2 JP10356090U JP10356090U JP2510208Y2 JP 2510208 Y2 JP2510208 Y2 JP 2510208Y2 JP 10356090 U JP10356090 U JP 10356090U JP 10356090 U JP10356090 U JP 10356090U JP 2510208 Y2 JP2510208 Y2 JP 2510208Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- tank
- ultrasonic sensor
- predictive maintenance
- ultrasonic
- 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 - Lifetime
Links
Landscapes
- Gas-Insulated Switchgears (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
Description
【考案の詳細な説明】 A.産業上の利用分野 本考案は、ガス絶縁電力機器の超音波センサを用いた
予測保全装置に関する。[Detailed Description of Device] A. Field of Industrial Application The present invention relates to a predictive maintenance device using an ultrasonic sensor of a gas insulated power device.
B.考案の概要 本考案は、ガス絶縁電力機器の超音波センサを用いて
内部部分放電等を検知する予測保全装置において、 ガス封入タンク内の絶縁スペーサにおける傾斜側面対
応位置に、超音波センサを設置して構成することによ
り、 タンク内のいずれの箇所で発生した部分放電でも、そ
れによる超音波を絶縁スペーサに反射させ、超音波セン
サで検出するようにしたものである。B. Outline of the Invention The present invention is a predictive maintenance device that detects an internal partial discharge, etc. using an ultrasonic sensor of a gas-insulated power device. By installing and configuring, even if partial discharge occurs at any place in the tank, the ultrasonic waves generated by the partial discharge are reflected by the insulating spacer and detected by the ultrasonic sensor.
C.従来の技術 一般に、導体等の電力機器をタンク内に納め、このタ
ンク内に絶縁ガスを封入したガス絶縁電力機器に、予測
保全用センサを取り付けてタンク内部における部分放電
を検出することが行われている。この予測保全用センサ
装置は、電力機器の信頼性がセンサの存在により低下す
ることがないよう、タンクの外部に設置していた。C. Conventional technology In general, electric power devices such as conductors are stored in a tank, and a predictive maintenance sensor can be attached to a gas-insulated power device in which an insulating gas is filled in the tank to detect partial discharge inside the tank. Has been done. This predictive maintenance sensor device has been installed outside the tank so that the reliability of the power device is not deteriorated by the presence of the sensor.
近時、タンク内部で発生する部分放電等の故障前の十
分な情報をノイズと区別して検知するために、第2図に
例示する如くタンク1内部にセンサ2を配置し、そのリ
ード線3をタンク1外部に引き出して図示しない測定器
と接続する構成のものが提案されている。Recently, in order to detect sufficient information before a failure such as partial discharge occurring inside the tank by distinguishing it from noise, a sensor 2 is arranged inside the tank 1 as shown in FIG. There is proposed a structure in which the tank 1 is drawn out of the tank 1 and connected to a measuring device (not shown).
このように、タンク1内にセンサ2の設置する場合に
は、タンク1内のスペーサ5,6の中間部に、箱状のポケ
ット4を設置し、そのポケット4内に超音波センサ2を
設置するのが普通であった。In this way, when the sensor 2 is installed in the tank 1, the box-shaped pocket 4 is installed in the intermediate portion of the spacers 5 and 6 in the tank 1, and the ultrasonic sensor 2 is installed in the pocket 4. It was normal to do.
D.考案が解決しようとする課題 上述のような従来の予測保全装置の構成では、超音波
センサ2自体の検出範囲が限られたものであるが、タン
ク1内の検出可能な部分放電等のコロナ発生位置が狭い
範囲に限定されてしまい、タンク内に検出できない範囲
が残ってしまうという問題があった。D. Problem to be Solved by the Invention In the configuration of the conventional predictive maintenance device as described above, the detection range of the ultrasonic sensor 2 itself is limited, but the detectable partial discharge in the tank 1 There is a problem that the corona generation position is limited to a narrow range, and an undetectable range remains in the tank.
本考案は上述の点に鑑み、超音波センサの検出範囲に
限定されることなく、タンク内の広い範囲に亘り、部分
放電等を検出可能としたガス絶縁電力機器の予測保全装
置を新たに提供することを目的とする。In view of the above points, the present invention is not limited to the detection range of the ultrasonic sensor, but newly provides a predictive maintenance device for gas insulated power equipment capable of detecting partial discharge and the like over a wide range in the tank. The purpose is to do.
E.課題を解決するための手段 本考案のガス絶縁電力機器の予測保全装置は、絶縁ガ
スを封入したタンク内における導体を支持する絶縁スペ
ーサの傾斜側面に対する超音波反射波の到達範囲を、超
音波センサの検出範囲内とするように超音波センサを設
置して構成したことを特徴とする。E. Means for Solving the Problems The predictive maintenance device for gas-insulated electric power equipment of the present invention is designed so that the reaching range of the ultrasonic reflected wave with respect to the inclined side surface of the insulating spacer supporting the conductor in the tank filled with the insulating gas is It is characterized in that an ultrasonic sensor is installed so as to be within the detection range of the ultrasonic sensor.
F.作用 上述のように構成することにより、タンク内のいずれ
の箇所で発生したコロナ発生源等からの超音波も、スペ
ーサの傾斜側面に反射させて超音波センサに受信できる
ものである。F. Operation With the above-described configuration, ultrasonic waves from any of the corona generation sources and the like generated at any location in the tank can be reflected by the inclined side surface of the spacer and received by the ultrasonic sensor.
G.実施例 以下、本考案のガス絶縁電力機器の予測保全装置の一
実施例を第1図によって説明する。なお、この第1図に
おいて前述した第2図に対応する部分には同一符号を附
すことによりその詳細な説明を省略する。G. Embodiment An embodiment of the predictive maintenance device for gas insulated power equipment of the present invention will be described below with reference to FIG. Incidentally, in FIG. 1, the portions corresponding to those in FIG. 2 described above are designated by the same reference numerals, and detailed description thereof will be omitted.
第1図の要部縦断面図で、1は絶縁ガスを封入したタ
ンク、2は超音波センサ、5,6は絶縁スペーサ、7は導
体である。In the longitudinal cross-sectional view of the main part of FIG. 1, 1 is a tank filled with an insulating gas, 2 is an ultrasonic sensor, 5 and 6 are insulating spacers, and 7 is a conductor.
本例装置の超音波センサ2は、各絶縁スペーサ5,6の
外周部所定箇所に設置する。The ultrasonic sensor 2 of the apparatus of this example is installed at a predetermined position on the outer peripheral portion of each insulating spacer 5, 6.
各絶縁スペーサ5,6は、絶縁材料を円錐形状に形成し
たもので、その外周側フランジ部8を、図示するように
タンク1の接続フランジ9間に挾み付けて設置する。Each of the insulating spacers 5 and 6 is formed of an insulating material in a conical shape, and the outer peripheral side flange portion 8 thereof is sandwiched between the connecting flanges 9 of the tank 1 as shown in the drawing.
各絶縁スペーサ5,6は、その中央部に導体7を貫通さ
せて、これを支持するものである。Each of the insulating spacers 5, 6 has a conductor 7 penetrating through the central portion thereof to support the conductor 7.
上述の各絶縁スペーサ5,6における、突出側の傾斜側
面10直下に対応したタンク1の所定位置には、凹部であ
る超音波センサ用ポケット4を一体に形成する。An ultrasonic sensor pocket 4 as a recess is integrally formed at a predetermined position of the tank 1 just below the protruding side surface 10 of each of the insulating spacers 5 and 6 described above.
各ポケット4内には、それぞれ単一の超音波センサ2
を設置し、そのリード線3を、気密を守った状態でポケ
ット4の底板を貫通させ、外部に引出し、図示しない測
定器に接続し、予測保全装置を構成する。A single ultrasonic sensor 2 is provided in each pocket 4.
Is installed, the lead wire 3 is penetrated through the bottom plate of the pocket 4 while keeping airtightness, pulled out to the outside, and connected to a measuring device (not shown) to form a predictive maintenance device.
次に、上述のように構成した本例装置の作動を説明す
る。Next, the operation of the apparatus of the present embodiment configured as described above will be described.
図示するように、タンク1内における内部部分放電等
している、例えば導体7のコロナ発生源A,又はタンク1
の壁部のパーティクルBで発生した超音波は、タンク1
内を進み、絶縁スペーサ7の傾斜側面10に当って反射
し、超音波センサ2に入射する。As shown in the figure, for example, a corona generation source A of the conductor 7 or the tank 1 that has undergone internal partial discharge in the tank 1
The ultrasonic waves generated by the particles B on the wall of the tank 1
The light travels in the interior, hits the inclined side surface 10 of the insulating spacer 7, is reflected, and enters the ultrasonic sensor 2.
そして、この放電等により発生した超音波を受信した
超音波センサ2は、その信号をリード線3を通じて図示
しない測定器へ送り、部分放電等の異常を検知するもの
である。Then, the ultrasonic sensor 2 that receives the ultrasonic wave generated by the discharge or the like sends the signal to a measuring device (not shown) through the lead wire 3 to detect an abnormality such as partial discharge.
すなわち、タンク1内のいずれの箇所にコロナ発生源
等があっても、そこで発生する超音波は、絶縁スペーサ
5,6に到達する。また、絶縁スペーサ5,6の傾斜側面10に
当って反射する超音波の進路が、単一の超音波センサ2
の検出範囲に設定してあるので、タンク1内のいずれの
箇所で発生した超音波も、超音波センサ2で受信でき
る。That is, even if there is a corona generation source or the like in any part of the tank 1, the ultrasonic waves generated there are insulated spacers.
Reach 5,6. In addition, the path of the ultrasonic waves reflected by the inclined side surfaces 10 of the insulating spacers 5 and 6 is determined by the single ultrasonic sensor 2
The ultrasonic sensor 2 can receive the ultrasonic wave generated at any position in the tank 1 because the ultrasonic sensor 2 is set to the detection range.
よって、コロナ発生源等が、超音波センサ2の検出範
囲外にあり、その箇所から発生した超音波が直接超音波
センサ2に入射しなくとも、そのスペーサ5,6に当った
反射波が単一の超音波センサ2に入射して受信されるの
で、部分放電等の異常を検知できるものである。Therefore, even if the corona generation source is outside the detection range of the ultrasonic sensor 2 and the ultrasonic wave generated from that position does not directly enter the ultrasonic sensor 2, the reflected wave that hits the spacers 5 and 6 is single. Since the ultrasonic wave is incident on one ultrasonic sensor 2 and is received, an abnormality such as partial discharge can be detected.
H.考案の効果 以上詳述したように、本考案のガス絶縁電力機器の予
測保全装置によれば、絶縁ガスを封入したタンク内にお
ける導体を支持する絶縁スペーサの傾斜側面に対する超
音波反射波の到達範囲を、超音波センサの検出範囲内と
するように超音波センサを設置して構成したので、タン
ク内のいずれの箇所で発生したコロナ発生源等からの超
音波も、スペーサの傾斜側面に反射させて超音波センサ
に受信できるので、超音波センサの検出可能な範囲をタ
ンク内全般に拡大できるという効果がある。H. Effect of the Invention As described in detail above, according to the predictive maintenance device for gas-insulated power equipment of the present invention, the ultrasonic reflected wave is transmitted to the inclined side surface of the insulating spacer supporting the conductor in the tank filled with the insulating gas. Since the ultrasonic sensor is installed so that the reachable range is within the detection range of the ultrasonic sensor, the ultrasonic waves from the corona generation source, etc. generated at any place in the tank are also attached to the inclined side surface of the spacer. Since it can be reflected and received by the ultrasonic sensor, there is an effect that the detectable range of the ultrasonic sensor can be expanded in the entire tank.
第1図は本考案のガス絶縁電力機器の予測保全装置の一
実施例を示す要部縦断面図、第2図は従来の予測保全装
置を例示する要部縦断面図である。 1……タンク、2……センサ、3……リード線、4……
ポケット、5,6……スペーサ、7……導体、10……傾斜
外側面。FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of a predictive maintenance device for a gas-insulated electric power device of the present invention, and FIG. 2 is a longitudinal sectional view of an essential part illustrating a conventional predictive maintenance device. 1 ... Tank, 2 ... Sensor, 3 ... Lead wire, 4 ...
Pockets, 5, 6 ... Spacers, 7 ... Conductors, 10 ... Inclined outer surface.
Claims (1)
縁スペーサで支持して配置するようにしたガス絶縁電力
機器において、 上記絶縁スペーサの傾斜側面に対する部分放電で発生し
た超音波反射波の到達範囲を、超音波センサの検出範囲
内とする対応位置に、上記超音波センサを設置して構成
したことを特徴とするガス絶縁電力機器の予測保全装
置。1. A gas-insulated electric power device in which a conductor is supported and arranged by an insulating spacer in a tank filled with an insulating gas, wherein an ultrasonic reflected wave generated by partial discharge on the inclined side surface of the insulating spacer is generated. A predictive maintenance device for a gas-insulated electric power device, wherein the ultrasonic sensor is installed at a position corresponding to the arrival range within the detection range of the ultrasonic sensor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10356090U JP2510208Y2 (en) | 1990-10-01 | 1990-10-01 | Predictive maintenance equipment for gas-insulated power equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10356090U JP2510208Y2 (en) | 1990-10-01 | 1990-10-01 | Predictive maintenance equipment for gas-insulated power equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0461079U JPH0461079U (en) | 1992-05-26 |
JP2510208Y2 true JP2510208Y2 (en) | 1996-09-11 |
Family
ID=31848490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10356090U Expired - Lifetime JP2510208Y2 (en) | 1990-10-01 | 1990-10-01 | Predictive maintenance equipment for gas-insulated power equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2510208Y2 (en) |
-
1990
- 1990-10-01 JP JP10356090U patent/JP2510208Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0461079U (en) | 1992-05-26 |
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