JPH0965528A - Electric apparatus - Google Patents
Electric apparatusInfo
- Publication number
- JPH0965528A JPH0965528A JP7216128A JP21612895A JPH0965528A JP H0965528 A JPH0965528 A JP H0965528A JP 7216128 A JP7216128 A JP 7216128A JP 21612895 A JP21612895 A JP 21612895A JP H0965528 A JPH0965528 A JP H0965528A
- Authority
- JP
- Japan
- Prior art keywords
- container
- temperature
- outside
- temperature sensor
- electric 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
Links
- 239000011810 insulating material Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012621 metal-organic framework Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 101100392439 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GIS1 gene Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス絶縁開閉装
置、変成器、変圧器等の電気機器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device such as a gas-insulated switchgear, a transformer and a transformer.
【０００２】[0002]
【従来の技術】上記ガス絶縁開閉装置（以下、「ＧＩ
Ｓ」という。）等の電気機器においては、主回路部で接
触不良などの不具合が発生すると、主回路通電電流によ
るジュール熱で導体の温度が上昇して溶融・溶損が生
じ、地絡・短絡などの重大事故に到ることがある。しか
し、ＧＩＳ等の電気機器においては、過熱部は接地金属
容器内に収納されているため、外部から異常を見つける
ことは困難である。2. Description of the Related Art The above gas insulated switchgear (hereinafter referred to as "GI
S ". In electrical equipment such as), when a problem such as poor contact occurs in the main circuit part, the Joule heat due to the current flowing in the main circuit causes the temperature of the conductor to rise, causing melting and melting damage, and causing serious problems such as ground faults and short circuits. An accident may result. However, in electrical equipment such as GIS, it is difficult to detect an abnormality from the outside because the overheated portion is housed in the grounded metal container.
【０００３】このような事故を未然に防ぐため、電気機
器内部の温度上昇を検出する温度センサを設置すること
が行われるが、温度センサを容器内部に取り付けること
は、容器に温度センサのリード線を引き出す部分を設け
る必要があるため好ましくはない。このため、従来は、
電気機器の容器の外部表面に温度センサを取り付け、そ
れにより測定した容器表面温度から電気機器内部温度を
推定して電気機器内部の過熱異常を監視することが行わ
れている。In order to prevent such an accident, a temperature sensor for detecting a temperature rise inside the electric equipment is installed. However, mounting the temperature sensor inside the container means that the lead wire of the temperature sensor is attached to the container. It is not preferable because it is necessary to provide a part for pulling out. Therefore, conventionally,
BACKGROUND ART A temperature sensor is attached to the outer surface of a container of an electric device, and the internal temperature of the electric device is estimated from the temperature of the surface of the container measured by the temperature sensor to monitor an overheat abnormality inside the electric device.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
従来の方式では、温度センサは電気機器の容器の外側表
面温度を測定するため、容器の板厚が厚い場合又は容器
の熱容量が大きい場合は、外側表面温度と電気機器内部
の温度とに比較的大きな差が生じる。したがって、電気
機器内部の温度を正確に推定することが困難になる。ま
た、電気機器容器表面は、風、外気温、日射等の外部環
境の影響を受けるため、電気機器内部の温度を正確に反
映した温度を測定することが困難であった。However, in the above conventional method, since the temperature sensor measures the outer surface temperature of the container of the electric equipment, when the plate thickness of the container is large or the heat capacity of the container is large, A relatively large difference occurs between the outer surface temperature and the temperature inside the electric device. Therefore, it becomes difficult to accurately estimate the temperature inside the electric device. Further, since the surface of the electric device container is affected by the external environment such as wind, outside temperature, and solar radiation, it is difficult to accurately measure the temperature inside the electric device.
【０００５】本発明は、簡単な構造で容器外部から容器
内部の温度を正確に推定することができる電気機器を提
供することを目的とするものである。また、本発明は、
外部環境の影響を受けずに、容器内部の温度を正確に反
映した温度を容器外部から測定することができる電気機
器を提供することを目的とするものである。It is an object of the present invention to provide an electric device which can accurately estimate the temperature inside the container from the outside with a simple structure. Also, the present invention
An object of the present invention is to provide an electric device that can measure the temperature accurately reflecting the temperature inside the container from the outside of the container without being affected by the external environment.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記目的を達
成するため、電気機器の容器の表面の一部に該容器の他
の部分より板厚を薄くした部分を形成し、その部分の容
器外側に電気機器内部の温度を測定するためのセンサを
取り付ける。板厚の薄い部分においては、電気機器内部
から容器外側への熱の流れが顕著になり、電気機器内部
の温度が外部に表れやすくなる。したがって、電気機器
の外部から内部の温度を正確に推定することができるよ
うになる。また、この板厚を薄くする部分は、容器のご
く一部に形成するだけであるから、容器の強度を低下さ
せずに実施することができる。In order to achieve the above object, the present invention provides a part of the surface of a container of an electric device with a part thinner than the other part of the container and forms the part of the part. A sensor for measuring the temperature inside the electric equipment is attached to the outside of the container. In the thin plate portion, the heat flow from the inside of the electric device to the outside of the container becomes remarkable, and the temperature inside the electric device is likely to appear to the outside. Therefore, it becomes possible to accurately estimate the internal temperature from the outside of the electric device. Further, since the portion for reducing the plate thickness is formed only in a very small part of the container, it can be carried out without lowering the strength of the container.
【０００７】また、本発明においては、容器の板厚を薄
くしセンサを取り付けた部分を断熱材で覆うこと、更に
は、その断熱構造の表面に赤外線反射層を設けるように
することができる。この断熱構造及び赤外線反射層は、
風、外気温、日射等の外部環境の影響から温度センサ及
び測定される部分を保護し、電気機器内部の温度を正確
に反映した温度を測定することが可能となる。Further, in the present invention, it is possible to reduce the plate thickness of the container and cover the portion where the sensor is attached with a heat insulating material, and further to provide an infrared reflection layer on the surface of the heat insulating structure. This heat insulation structure and infrared reflection layer,
It is possible to protect the temperature sensor and the portion to be measured from the influence of the external environment such as wind, outside temperature, and solar radiation, and to measure the temperature that accurately reflects the temperature inside the electric device.
【０００８】[0008]
【発明の実施の形態】本発明をＧＩＳに適用した例につ
いて、図を用いて説明する。図２はＧＩＳの全体構成を
示す。図示のＧＩＳ１は、複数の遮断器容器４とＭＯＦ
容器５と、それらの間を接続する導体を収納する管路２
及び伸縮管路３からなる。これら管路２及び伸縮管路３
もＧＩＳ１の容器の一部を構成している。BEST MODE FOR CARRYING OUT THE INVENTION An example in which the present invention is applied to GIS will be described with reference to the drawings. FIG. 2 shows the overall structure of the GIS. The illustrated GIS 1 includes a plurality of circuit breaker containers 4 and MOFs.
A conduit 2 for accommodating a container 5 and a conductor connecting them
And the expansion and contraction conduit 3. These pipeline 2 and telescopic pipeline 3
Also constitutes part of the GIS1 container.
【０００９】図１に、管路２に温度センサを取り付けた
状態を示す。図１の（ｂ）は管路２の側面断面を示し、
（ａ）は（ｂ）のＡ−Ａ線の断面を示す。管路２は、８
〜１２ｍｍ程度の板厚の鉄板により形成され、その内部
にＳＦ6ガスが充填され、導体６を収納する。管路２の
上下に、その板厚を薄くした部分９，１０が形成され、
その部分９，１０の外側表面にそれぞれ温度センサ
Ｔ1 ，Ｔ2 が取り付けられる。この板厚の薄い部分９，
１０は、管路２の内側部分を切削することにより数ｍｍ
程度の厚さに加工される。また、管路２の板厚の厚い部
分に、周囲温度を検出するための温度センサＴ3 が取り
付けられる。FIG. 1 shows a state in which a temperature sensor is attached to the pipe line 2. FIG. 1B shows a side cross section of the pipe line 2,
(A) shows the cross section of the (A) line of (b). Pipe line 2 is 8
The conductor 6 is formed by an iron plate having a plate thickness of about 12 mm, and is filled with SF 6 gas. Formed on the upper and lower sides of the conduit 2 are thinned portions 9 and 10,
Temperature sensors T 1 and T 2 are attached to the outer surfaces of the portions 9 and 10, respectively. This thin part 9,
10 is several mm by cutting the inner part of the pipeline 2.
It is processed to a certain thickness. A temperature sensor T 3 for detecting the ambient temperature is attached to the thick portion of the conduit 2.
【００１０】上記のように、管路２の一部のみ板厚を薄
くすることにより、管路２の内側から外側への熱の流れ
を顕著にすることができる。その原理を図３に示す。図
３（ａ）は板厚が薄い場合、（ｂ）は板厚が厚い場合の
熱の流れ７を図式化して表示したものである。図から明
らかなように、板厚が薄い方が内側から外側へ流れる方
向の熱抵抗が小さく、管路２の平行方向の熱抵抗が大き
い。これにより、板厚が薄い程容器内外の温度差が少な
くなって、容器外部に設けた温度センサＴ1 により正確
に管路２内部の温度を反映した温度を測定することがで
きるようになる。As described above, by reducing the plate thickness of only part of the conduit 2, the heat flow from the inside to the outside of the conduit 2 can be made remarkable. The principle is shown in FIG. FIG. 3A shows the heat flow 7 when the plate thickness is thin and FIG. 3B shows the heat flow 7 when the plate thickness is thick. As is clear from the figure, the thinner the plate thickness, the smaller the heat resistance in the direction of flow from the inner side to the outer side, and the larger the heat resistance in the parallel direction of the conduit 2. As a result, the thinner the plate thickness, the smaller the temperature difference between the inside and the outside of the container, and the temperature sensor T 1 provided outside the container can accurately measure the temperature that reflects the temperature inside the conduit 2.
【００１１】温度センサＴ1 ，Ｔ2 ，Ｔ3 の出力は、図
示しない監視装置に導かれ、監視装置において異常過熱
発生の監視がされる。なお、電気機器の過熱異常を検出
するためのセンサとしては、温度センサは１つあれば充
分なものである。この温度センサを１つだけ設けた場合
の監視装置における信号処理等は公知のものであるの
で、ここでの説明は省略する。The outputs of the temperature sensors T 1 , T 2 , T 3 are guided to a monitoring device (not shown), and the monitoring device monitors the occurrence of abnormal overheat. It should be noted that one sensor is sufficient as a sensor for detecting an overheat abnormality of an electric device. Since signal processing and the like in the monitoring device when only one temperature sensor is provided are known, description thereof will be omitted here.
【００１２】ここで、温度センサをＴ1 ，Ｔ2 ，Ｔ3 と
３か所に設けた理由について説明する。最初に、温度セ
ンサＴ1 ，Ｔ2 を、上下に２組取り付けた理由について
図４を用いて説明する。導体６の発熱による温度上昇は
容器内部の上部で顕著となり、図４（ａ）に示すよう
に、上部に配置された温度センサＴ1 の測定した温度Ｔ
U が下部に配置された温度センサＴ2 の測定した特徴Ｔ
B より大きく上昇する。そして、温度ＴUとＴB との差
ΔＴは、（ｂ）に示すように、内部の発熱量にほぼ比例
する。したがって、１つの温度センサＴ1 による温度監
視に加えて、２つの温度センサＴ1，Ｔ2 を容器の上下
に配置して、両者の測定値の差ΔＴを参照することによ
り、更に精度の高い過熱監視を行うことができる。Here, the reason why the temperature sensors are provided at three locations T 1 , T 2 and T 3 will be described. First, the reason why two sets of the temperature sensors T 1 and T 2 are attached above and below will be described with reference to FIG. The temperature rise due to the heat generation of the conductor 6 becomes remarkable in the upper part inside the container, and as shown in FIG. 4A, the temperature T measured by the temperature sensor T 1 arranged at the upper part is measured.
The measured feature T of the temperature sensor T 2 with U located at the bottom
Greater than B. The difference ΔT between the temperatures T U and T B is almost proportional to the internal heat generation amount, as shown in (b). Therefore, in addition to temperature monitoring by one temperature sensor T 1, 2 one temperature sensor T 1, the T 2 disposed above and below the container, by referring to the difference ΔT between the two measurements, further accurate Overheat monitoring can be performed.
【００１３】次に、板厚の薄い部分に設けた温度センサ
Ｔ1 ，Ｔ2 の他に、周囲温度を測定する第３の温度セン
サＴ3 を設けた理由について説明する。電気機器内部の
ＳＦ6 ガス、絶縁油等の絶縁媒体の温度Ｔｍは、発熱体
の発熱量が増加すると上昇する。また、周囲温度Ｔａｍ
ｂが上昇することによっても上昇する。すなわち、発熱
体の発熱による温度上昇値をΔＴｍとすると、容器中の
絶縁媒体の温度Ｔｍは、Ｔｍ＝ΔＴｍ＋Ｔａｍｂとな
る。したがって、温度センサにより電気機器内部の温度
Ｔｍのみを監視していると、周囲温度による温度上昇を
過熱による温度上昇と誤って判定する可能性がある。Next, the reason for providing the third temperature sensor T 3 for measuring the ambient temperature in addition to the temperature sensors T 1 and T 2 provided in the thin plate portion will be described. The temperature Tm of the insulating medium such as SF 6 gas and insulating oil inside the electric device rises as the heating value of the heating element increases. Also, the ambient temperature Tam
It also rises as b rises. That is, when the temperature rise value due to heat generation of the heating element is ΔTm, the temperature Tm of the insulating medium in the container is Tm = ΔTm + Tamb. Therefore, if only the temperature Tm inside the electric device is monitored by the temperature sensor, the temperature increase due to the ambient temperature may be erroneously determined as the temperature increase due to overheating.
【００１４】これに対し、電気機器の過熱の程度はΔＴ
ｍ＝Ｔｍ−Ｔａｍｂである程度判定できるから、周囲温
度Ｔａｍｂを第３の温度センサＴ3 により測定し、第１
の温度センサＴ1 で測定した値Ｔｍを補償することによ
り、更に正確な過熱発生の判定を行うことができるよう
になる。このために、第３の温度センサＴ3 が、第１の
温度センサＴ1 の近くで管路２の板厚の厚い部分に設け
られる。これにより、第３の温度センサＴ3 は、内部過
熱があまり大でなければ外気温の影響をより顕著に受け
るため第１の温度センサＴ1 の周囲温度を近似的に測定
することとなる。また、内部過熱が大となる状況で測定
するときは第３の温度センサＴ3 に対する電気機器内部
の温度の影響を更に少なくするために、温度センサＴ3
と管路２との間に断熱材等を設けることもできる。ま
た、Ｔ3 は適当な場所が確保できればＴ1 の近傍の気中
に置いてもよい。On the other hand, the degree of overheating of electric equipment is ΔT.
Since it can be determined to some extent by m = Tm-Tamb, the ambient temperature Tamb is measured by the third temperature sensor T 3 , and the first
By compensating for the value Tm measured by the temperature sensor T 1 of 1 above, it becomes possible to more accurately determine the occurrence of overheat. For this reason, the third temperature sensor T 3 is provided near the first temperature sensor T 1 in the thick portion of the conduit 2. As a result, the third temperature sensor T 3 approximately receives the ambient temperature of the first temperature sensor T 1 because the third temperature sensor T 3 is more significantly affected by the outside air temperature unless the internal overheat is too large. Further, in order to further reduce the influence of the temperature of the internal electrical equipment for the third temperature sensor T 3 of when measured in a situation where the internal heating is large, the temperature sensor T 3
A heat insulating material or the like may be provided between the pipe 2 and the pipe 2. Further, T 3 may be placed in the air near T 1 if an appropriate place can be secured.
【００１５】図５及び図６は、温度センサの取り付け部
分の各種変形例を示す。図５（ａ）〜（ｅ）は、板厚の
薄い部分９と温度センサＴ1 の外側に、風よけを兼ねた
日除け２１を取り付けた例を示す。温度センサＴ1 の外
側に、風よけを兼ねた日除け２１を取り付けることによ
り、板厚の薄い部分９に直接太陽光が当たり温度センサ
Ｔ1 の検出温度が上昇することを防止する。また、風が
測定箇所に直接当たって温度を下げることを防止する。5 and 6 show various modifications of the mounting portion of the temperature sensor. Figure 5 (a) ~ (e) are outside the thickness of the thin portion 9 and the temperature sensor T 1, showing an example in which the sunshade 21 which also serves as a windbreaks. Outside temperature sensor T 1, by attaching the sunshade 21 which also serves as a windbreaks, the temperature detected by the temperature sensor T 1 per directly sunlight thickness of thin portion 9 is prevented from rising. It also prevents the wind from directly hitting the measurement site and lowering the temperature.
【００１６】図６（ａ）〜（ｅ）は、板厚の薄い部分９
と温度センサＴ1 の周囲を断熱材２６で覆い、更に、断
熱材２６の外側に、熱反射材２７を張りつけたものであ
る。このように、温度センサＴ1 の外側を断熱材２６で
覆うと、管路２を貫通する熱の流れが無くなり、熱の流
れは、管路２の壁に平行な成分が殆どとなる。したがっ
て、板厚の薄い部分９における管路２内外の温度を等し
いものに近づけることができ、容器内部の温度を正確に
推定することができるようになる。また、更に断熱材２
６の外側に赤外線反射材２７を張りつけることにより、
日射による該部分の温度上昇を防止することができる。
また、板厚の薄い部分が加工できない既設の機器の場合
には、厚い板の上にこの断熱層を付けて、Ｔ1 を付け
て、内部温度を近似的に測定できる。6 (a) to 6 (e) show a thin plate portion 9
The temperature sensor T 1 is surrounded by a heat insulating material 26, and a heat reflecting material 27 is attached to the outside of the heat insulating material 26. As described above, when the outside of the temperature sensor T 1 is covered with the heat insulating material 26, the flow of heat passing through the pipeline 2 is eliminated, and the flow of heat has almost all components parallel to the wall of the pipeline 2. Therefore, the temperature inside and outside the conduit 2 in the thin plate portion 9 can be made close to the same, and the temperature inside the container can be accurately estimated. In addition, heat insulation material 2
By attaching the infrared reflecting material 27 to the outside of 6,
It is possible to prevent the temperature of the portion from rising due to solar radiation.
Further, in the case of an existing device in which a thin plate portion cannot be processed, this heat insulating layer can be attached to a thick plate and T 1 can be attached to measure the internal temperature approximately.
【００１７】図５及び図６において、（ａ）は、板厚の
薄い部分９を管路２の内側から加工して形成し、温度セ
ンサＴ1 を管路２の外側に取り付けた例である。（ｂ）
は、板厚の薄い部分９を管路２の外側から加工して形
成、その加工した部分に温度センサＴ1 を取り付けた例
である。（ｃ）〜（ｅ）は、管路２に孔を形成し、板厚
の薄い部材２３〜２５を溶接で取り付け、その外側に温
度センサＴ1 を取り付けた例を示す。In FIGS. 5 and 6, (a) shows an example in which the thin plate portion 9 is formed by processing from the inside of the conduit 2 and the temperature sensor T 1 is attached to the outside of the conduit 2. . (B)
Is an example in which the thin plate portion 9 is formed by processing from the outside of the conduit 2, and the temperature sensor T 1 is attached to the processed portion. (C) to (e) show an example in which a hole is formed in the conduit 2, the thin plate members 23 to 25 are attached by welding, and the temperature sensor T 1 is attached to the outside thereof.
【００１８】以上説明した例では、板厚の薄い部分は、
管路２を加工することにより形成しているが、容器に最
初からある薄板部を利用することもできる。例えば、前
述の図２のＧＩＳ１は伸縮管路３を有しており、この伸
縮管路３は板厚の薄いベローズ部を有している。図７に
示すように、伸縮管路３のベローズ部３１は、１〜２ｍ
ｍ程度の薄板で形成されている。これは管路２の８〜１
２ｍｍ程度の板厚の１／１０オーダーであるので、ベロ
ーズ部３１は板厚の薄い部分と見なすことができる。し
たがって、このベローズ部３１に温度センサＴ1 を取り
付けることにより、電気機器の外部から内部の温度に近
い温度を測定することができるようになる。In the example described above, the thin plate portion is
Although it is formed by processing the pipe line 2, it is also possible to use a thin plate portion which is originally present in the container. For example, the above-described GIS 1 in FIG. 2 has the expansion and contraction conduit 3, and this expansion and contraction conduit 3 has a thin bellows portion. As shown in FIG. 7, the bellows portion 31 of the expandable conduit 3 has a length of 1 to 2 m.
It is formed of a thin plate of about m. This is pipe line 8-1
Since the thickness is about 1/10 of the plate thickness of about 2 mm, the bellows portion 31 can be regarded as a thin plate portion. Therefore, by attaching the temperature sensor T 1 to the bellows portion 31, it becomes possible to measure the temperature close to the internal temperature from the outside of the electric device.
【００１９】また、この例では、周囲温度を測定するた
めの温度センサＴ3 は、板厚の厚い管路２の外側に取り
付けられる。さらに、図７の例においても、図５又は図
６に示したような、日除け、断熱材、赤外線反射材等を
付加して設けることができる。さらに、本発明において
は、温度センサとして、サーモグラフィのような熱画像
装置を用いて板厚の薄い部分の温度を測定してもよい。
この例は、特に上述のベロー部のような部分の温度を監
視するのに敵している。Further, in this example, the temperature sensor T 3 for measuring the ambient temperature is attached to the outside of the conduit 2 having a large plate thickness. Further, also in the example of FIG. 7, it is possible to additionally provide an awning, a heat insulating material, an infrared reflecting material and the like as shown in FIG. 5 or FIG. Further, in the present invention, as the temperature sensor, a thermal imager such as a thermograph may be used to measure the temperature of the thin plate portion.
This example is particularly suited for monitoring the temperature of parts such as the bellows described above.
【００２０】[0020]
【発明の効果】本発明によれば、簡単な構造で容器外部
から容器内部の温度を正確に推定することができる電気
機器を得ることができる。また、外部環境の影響を受け
ずに、容器内部の温度を正確に反映した温度を容器外部
から測定することができる電気機器を得ることができ
る。According to the present invention, it is possible to obtain an electric device having a simple structure and capable of accurately estimating the temperature inside the container from the outside. Further, it is possible to obtain an electric device capable of measuring the temperature accurately reflecting the temperature inside the container from the outside of the container without being affected by the external environment.
【図１】本発明をＧＩＳの管路に適用した例を示す正面
断面図と側面断面図。FIG. 1 is a front sectional view and a side sectional view showing an example in which the present invention is applied to a GIS pipeline.
【図２】ＧＩＳの構成を示す正面図。FIG. 2 is a front view showing the configuration of GIS.
【図３】本発明の原理を説明するための図。FIG. 3 is a diagram illustrating the principle of the present invention.
【図４】図１の、温度センサを容器の上下に配置した場
合の動作原理を説明するためのグラフ。FIG. 4 is a graph for explaining the operation principle when the temperature sensors in FIG. 1 are arranged above and below the container.
【図５】図１の例に日除けを付加した変形例を示す断面
図。5 is a cross-sectional view showing a modified example in which a shade is added to the example of FIG.
【図６】図１の例に断熱材及び赤外線反射層を付加した
変形例を示す断面図。6 is a cross-sectional view showing a modified example in which a heat insulating material and an infrared reflective layer are added to the example of FIG.
【図７】本発明をＧＩＳの伸縮管路に適用した例を示す
側面断面図。FIG. 7 is a side cross-sectional view showing an example in which the present invention is applied to a GIS expandable conduit.
１…ＧＩＳ ２…管路 ３…伸縮管路 ４…遮断器容器 ５…ＭＯＦ容器 ６…導体 ９，１０…板厚の薄い部分 ２１…日除け ２３，２４，２５…板厚の薄い部材 ２６…断熱材 ２７…赤外線反射層 ３１…ベローズ部 Ｔ1 ，Ｔ2 ，Ｔ3 …温度センサ1 ... GIS 2 ... Pipeline 3 ... Expansion / contraction line 4 ... Circuit breaker container 5 ... MOF container 6 ... Conductor 9, 10 ... Thin plate portion 21 ... Sunshade 23, 24, 25 ... Thin plate member 26 ... Thermal insulation Material 27 ... infrared reflective layer 31 ... bellows portion T 1, T 2, T 3 ... temperature sensor
Claims (4)
り板厚を薄くした部分を形成し、その部分の容器外側に
電気機器内部の温度を測定するためのセンサを取り付け
たことを特徴とする電気機器。1. A part of the surface of the container is formed with a plate thickness thinner than other parts of the container, and a sensor for measuring the temperature inside the electric device is attached to the outside of the part of the part. Electrical equipment characterized by.
けた部分を断熱材で覆ったことを特徴とする請求項１記
載の電気機器。2. The electric device according to claim 1, wherein a plate thickness of the container is reduced and a portion where the sensor is attached is covered with a heat insulating material.
たことを特徴とする請求項２記載の電気機器。3. The electric device according to claim 2, wherein an infrared reflection layer is provided on the surface of the heat insulating material.
分を、前記容器の上部と下部の両方に形成したことを特
徴とする請求項１記載の電気機器。4. The electric device according to claim 1, wherein the plate thickness is thinned and the sensor-attached portions are formed on both the upper portion and the lower portion of the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7216128A JPH0965528A (en) | 1995-08-24 | 1995-08-24 | Electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7216128A JPH0965528A (en) | 1995-08-24 | 1995-08-24 | Electric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0965528A true JPH0965528A (en) | 1997-03-07 |
Family
ID=16683705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7216128A Pending JPH0965528A (en) | 1995-08-24 | 1995-08-24 | Electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0965528A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015125198A1 (en) * | 2014-02-18 | 2015-08-27 | パナソニックＩｐマネジメント株式会社 | Temperature-detecting device |
| JP2023544830A (en) * | 2020-10-08 | 2023-10-25 | ティーディーケイ・エレクトロニクス・アクチェンゲゼルシャフト | Electrical system having a capacitor element and method of monitoring at least one capacitor element in an electrical system |
| US20240272035A1 (en) * | 2021-09-24 | 2024-08-15 | Abb Schweiz Ag | Method and apparatus for gas leak detection |
-
1995
- 1995-08-24 JP JP7216128A patent/JPH0965528A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015125198A1 (en) * | 2014-02-18 | 2015-08-27 | パナソニックＩｐマネジメント株式会社 | Temperature-detecting device |
| US10072988B2 (en) | 2014-02-18 | 2018-09-11 | Panasonic Intellectual Property Management Co., Ltd. | Temperature-detecting device |
| JP2023544830A (en) * | 2020-10-08 | 2023-10-25 | ティーディーケイ・エレクトロニクス・アクチェンゲゼルシャフト | Electrical system having a capacitor element and method of monitoring at least one capacitor element in an electrical system |
| US12422501B2 (en) | 2020-10-08 | 2025-09-23 | Tdk Electronics Ag | Electrical system with a capacitor element and method for monitoring at least one capacitor element in an electrical system |
| US20240272035A1 (en) * | 2021-09-24 | 2024-08-15 | Abb Schweiz Ag | Method and apparatus for gas leak detection |
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