JPS6326608B2 - - Google Patents
Info
- Publication number
- JPS6326608B2 JPS6326608B2 JP57078655A JP7865582A JPS6326608B2 JP S6326608 B2 JPS6326608 B2 JP S6326608B2 JP 57078655 A JP57078655 A JP 57078655A JP 7865582 A JP7865582 A JP 7865582A JP S6326608 B2 JPS6326608 B2 JP S6326608B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- electrical equipment
- container
- detection chamber
- detection
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 65
- 238000000354 decomposition reaction Methods 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 13
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 64
- 239000000126 substance Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H2033/567—Detection of decomposition products of the gas
-
- 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
- H02B13/0655—Means for detecting or reacting to mechanical or electrical defects through monitoring changes of gas properties
Description
【発明の詳細な説明】
本発明は外壁に分解ガス検知室を取付けたガス
絶縁電気機器の異常検出装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abnormality detection device for gas-insulated electrical equipment in which a decomposition gas detection chamber is attached to an outer wall.
密閉容器内に収納されるSF6ガスなどのような
ハロゲン含有ガスを絶縁媒体として封入した変圧
器、開閉器などの電気機器が異常の状態になり、
このために発生する部分放電、アークなどのよう
な高いエネルギー状態にさらされるとハロゲン含
有ガスは分解して化学的に活性な分解ガスを発生
する。この分解ガスは絶縁物を劣化させ金属を腐
食する性質があるため機器の異常はさらに進み、
絶縁物を急速に劣化させる。しかしながらこの現
象を利用して分解ガスの発生を常時監視していれ
ば機器の異常を発見し、事故を未然に防ぐことが
できる。 Electrical equipment such as transformers and switchgears that are housed in sealed containers and filled with halogen-containing gas such as SF 6 gas as an insulating medium become abnormal.
When exposed to high energy conditions such as partial discharge and arcing, the halogen-containing gas decomposes and generates chemically active decomposition gas. This decomposed gas has the property of degrading insulators and corroding metals, causing further equipment abnormalities.
Rapidly degrades insulation. However, if this phenomenon is used to constantly monitor the generation of decomposed gas, it is possible to discover equipment abnormalities and prevent accidents.
この分解ガス検知方法を大別すると容器内のガ
ス絶縁媒体を外部に抽出してこれを分析する方法
と、検知物質を容器内のガス絶縁媒体中に挿入し
ておき、この物質が分解ガスに触れると変質また
は変色することから検知する方法とに分けられ、
さらにこの検知物質を容器外に取出して目視また
は測定する方法と容器内の検出物質を容器外から
目視または測定する方法とに分けられる。ガス絶
縁媒体を外部に抽出するには容器にストツプバル
ブを有するパイプを取付けるだけで特別な加工を
必要とせず簡単に抽出できるが、監視が間欠的と
なり、分析に手数を要する。また不用意にバルブ
を操作し、多量のガス絶縁媒体を放出し機器の運
転に支障を起こしたり、分解ガスには毒性のある
ものもあるので作業者が分解ガスを吸入すると危
険であるなどの欠点がある。勿論ガスクロマトグ
ラフイを容器に取付けてガス分析を行えば解決す
るがコストが高くなるという欠点がある。 This decomposed gas detection method can be roughly divided into two methods: one is to extract the gas insulating medium inside the container to the outside and analyze it, and the other is to insert a detection substance into the gas insulating medium inside the container, and this substance is detected as decomposed gas. There are two types of detection methods: one that detects changes in quality or color when touched;
Furthermore, there are two methods: a method in which the detection substance is taken out of the container and visually observed or measured, and a method in which the detection substance inside the container is visually observed or measured from outside the container. The gas insulating medium can be easily extracted to the outside by simply attaching a pipe with a stop valve to the container without requiring any special processing, but monitoring is intermittent and analysis is time-consuming. In addition, careless valve operation may release a large amount of gas insulating medium, which may interfere with the operation of the equipment, and some decomposed gases are toxic, so it is dangerous for workers to inhale decomposed gases. There are drawbacks. Of course, this problem can be solved by attaching a gas chromatograph to the container and performing gas analysis, but this has the disadvantage of increasing costs.
分解ガスに触れると変質あるいは変色する物質
を容器内のガス絶縁媒体内に挿入しておけば、そ
の物質は発生した分解ガスにさらされるからこの
物質の変色あるいは変質状態を目視あるいは測定
し分解ガスの発生を検知することができる。例え
ば上記のような分質を容器中に挿入しておき、定
期的に容器を開いて取り出すとか、容器の気密を
保つたまま自在に取り出し得る軸体に物質を取付
けて、これを外部から挿入し、これを引き出して
目視または測定する方法が知られており、これは
比較的正しい情報が得られる。しかし一般に物質
を容器に出し入れするにはガス絶縁媒体を排出し
て機器の運転を停止せねばならず、容器の気密を
保つたまま出し入れするには装置が複雑になる。
そこで変色する物質をのぞき窓から目視すれば装
置は簡単になるが窓の汚損による相違があり、目
視する方法に共通して個人差や定量的な検知が困
難であるという欠点がある。 If a substance that changes quality or changes color when it comes into contact with decomposition gas is inserted into a gas insulating medium in a container, the substance will be exposed to the generated decomposition gas, so the discoloration or deterioration state of this substance can be visually inspected or measured. It is possible to detect the occurrence of For example, the substance described above may be inserted into a container and periodically opened and taken out, or the substance may be attached to a shaft that can be taken out at will while keeping the container airtight, and this substance may be inserted from the outside. However, there is a known method of extracting it and visualizing or measuring it, which provides relatively accurate information. However, in general, in order to take a substance into or take it out of a container, the gas insulating medium must be discharged and the operation of the equipment must be stopped, and the equipment becomes complicated in order to take out or take in the substance while maintaining the airtightness of the container.
If the discolored substance is visually observed through a peephole, the device becomes simpler, but there are differences due to dirt on the window, and visual inspection methods have the common drawbacks of individual differences and the difficulty of quantitative detection.
分解ガスにさらされると透過率や反射率の変化
する物質に光を入射させ透過や反射する光の変化
を電気信号として取り出す方法、さらに二つの電
極間に分解ガスによつて変質し、電気特性の変る
物質を介在させ、この電気抵抗、誘電率などの変
化を測定する方法も知られている。電気特性の変
化を測定する方法は比較的簡単で、透過や反射す
る光の変化を電気信号として取り出す方法ととも
に連続測定や記録も可能であるが、ガス絶縁媒体
に電気特性の変化する物質で構成した検知部を長
年月置いた場合の信頼性についてはこれまで必ず
しも実証されているわけではない。また容器中に
検知部を挿入する場合に共通して、容器内に余分
の空間を設けなければならないという欠点があ
り、まして高電圧機器を収納する容器内では検知
部を設置する場所に制限がある。またこの検知部
を簡単に外部へ取り出してその良否を点検できな
いという欠点がある。 A method in which light is incident on a material whose transmittance or reflectance changes when exposed to decomposition gas, and the changes in the transmitted or reflected light are extracted as electrical signals, and the electrical properties are changed by the decomposition gas between two electrodes. There is also a known method for measuring changes in electrical resistance, dielectric constant, etc. by intervening a substance that changes the electrical resistance. The method of measuring changes in electrical properties is relatively simple, and continuous measurement and recording is possible as well as extracting changes in transmitted and reflected light as electrical signals, but it is possible to measure and record changes in electrical properties in a gas insulating medium. Until now, the reliability of a sensor that has been used for many years has not necessarily been proven. In addition, when inserting a detection unit into a container, there is a common drawback that extra space must be provided within the container, and there are also restrictions on where the detection unit can be installed in a container that stores high-voltage equipment. be. Another disadvantage is that the detection section cannot be easily taken out to inspect its quality.
本発明は上記の欠点にかんがみなされたもの
で、分解ガスの検知部は電気機器の容器外壁に取
り付けた検知室に収納し、機器の運転中に常時検
知でき、さらに検知部を外部に容易に取り出し可
能でしかもあらゆる種類の検知部が設置できるガ
ス絶縁電気機器の異常検知装置を提供することを
目的とする。 The present invention has been developed in view of the above-mentioned drawbacks, and the decomposed gas detection section is housed in a detection chamber attached to the outer wall of the container of the electrical equipment, so that detection can be carried out at all times while the equipment is in operation, and furthermore, the detection section can be easily installed outside. It is an object of the present invention to provide an abnormality detection device for gas-insulated electrical equipment that can be taken out and installed with all kinds of detection parts.
この目的は、電気機器を収納しハロゲン含有ガ
ス絶縁媒体を封入した密閉容器の外壁に取り付け
られ前記ハロゲン含有ガスの分解ガス透過膜を介
して前記容器内と連通する分解ガス検知室と、こ
の検知室に拡散してきた分解ガスを検知する分解
ガス検知器本体とを備えることにより達成され
る。なお分解ガス透過膜はフツ素樹脂かポリイミ
ド樹脂であると好適である。フツ素樹脂はポリイ
ミド樹脂に比して透過性が優れるが機械的強度が
劣ることから、容器に圧縮封入するガス圧力値に
関連して適宜選択するのがよい。また検知室はス
トツプバルブにより大気に連通し得るようにし、
さらに蓋により大気側に開放可能に閉鎖されてい
ると都合よい。 The purpose of this is to provide a decomposed gas detection chamber that is attached to the outer wall of a sealed container housing electrical equipment and sealed with a halogen-containing gas insulating medium and communicates with the inside of the container through a decomposition gas permeable membrane for the halogen-containing gas; This is achieved by including a decomposition gas detector main body that detects decomposition gas that has diffused into the chamber. Note that the decomposition gas permeable membrane is preferably made of fluororesin or polyimide resin. Fluororesins have better permeability than polyimide resins, but are inferior in mechanical strength, so they should be selected appropriately in relation to the pressure value of the gas to be compressed and sealed in the container. In addition, the detection chamber can be communicated with the atmosphere through a stop valve.
Furthermore, it is convenient if the lid is closed so that it can be opened to the atmosphere.
次に本発明の実施例を図面に基づいて詳細に説
明する。第１図は本発明の第１の実施例である。
第１図において１は図示しない電気機器を収納す
る容器の一部であり、内部には数気圧程度のSF6
ガス２が封入されている。容器１に設けた開口部
１ａには多数の孔３ａをあけた支持材３で挾まれ
た高分子材料からなる分解ガス透過膜ここではフ
ツ素樹脂の膜４と一方の開口を容器１側とした角
筒５とがボルト６により取り付けられ、角筒５は
一方の開口を膜４で仕切ることにより検知室を画
成している。検知室７には分解ガスに触れると変
色する物質８が挿入され、角筒５の他方の開口
は、アクリル板かガラスなどのような透明でSF6
ガスにおかされ難い蓋９で閉鎖されている。また
角筒５にはパイプ１０が取り付けられストツプバ
ルブ１１を開閉することにより大気と連通させる
ことができる。１２は取り付け部分のガス漏れを
防ぐパツキングである。 Next, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 shows a first embodiment of the invention.
In Fig. 1, 1 is a part of a container that houses electrical equipment (not shown), and the inside contains SF 6 at a pressure of several atmospheres.
Gas 2 is sealed. An opening 1a provided in the container 1 has a decomposition gas permeable membrane made of a polymer material sandwiched between support members 3 having a large number of holes 3a, and a membrane 4 made of fluororesin in this case, with one opening facing the container 1 side. A rectangular tube 5 is attached with bolts 6, and one opening of the rectangular tube 5 is partitioned by a membrane 4 to define a detection chamber. A substance 8 that changes color when it comes into contact with the decomposed gas is inserted into the detection chamber 7, and the other opening of the rectangular tube 5 is made of SF 6 made of transparent material such as an acrylic plate or glass.
It is closed with a lid 9 that is not easily exposed to gas. Further, a pipe 10 is attached to the rectangular tube 5, and by opening and closing a stop valve 11, it can be communicated with the atmosphere. 12 is a packing to prevent gas leakage from the attachment part.
フツ素樹脂の膜４はSF6のような分子量の大き
いガスは透過し難いが、長い間にはこれを透過
し、常時容器１内と検知室７との圧力は平衡して
いる。ここで容器１内の機器に含まれていた水分
や容器１内で発生した分解ガスは、分子量が小さ
いからフツ素樹脂の膜４を容易に透過する。しか
も透過面積は十分大きい構造とすることができる
から分解ガスは容易に検知室７内に拡散して変色
物質８と接触し、これを変色させる。したがつて
この変色物質８を蓋９を透して目視すれば、その
変色により、常時分解ガスの発生を検知すること
ができる。またバルブ１１を開いて検知室７のガ
スを抽出し、間欠的に検知室７の分解ガスを検知
することもできる。このときバルブ１１から抽出
されるガスは検知室７だけの量であり、たとえ外
部に放出されてもこのうちの分解ガスが人体に害
を与える程の量ではなく安全である。また検知室
７のガスを完全に放出し内部の圧力を大気圧まで
下げれば蓋９を開くことができ、変色物質を取り
出し直接目視するとか、重量などを測定すること
もできる。検知室７の蓋９を開いても容器１の開
口部１ａはフツ素樹脂の膜４で仕切られているか
ら分子量の大きいSF6ガスは検知室７側に透過し
難く、短時間内の透過は微量で無視できる。これ
らの作業中容器１内のSF6ガスは抜く必要がな
く、放出もされないから容器１内の電気機器は平
常通り運転することができる。また蓋９を取り付
け、バルブ１１を閉じるだけで平常に復し、蓋９
を透視した常時検知を行うことができる。 The membrane 4 made of fluororesin is difficult for a gas with a large molecular weight such as SF 6 to permeate, but it does permeate it over a long period of time, and the pressures in the container 1 and in the detection chamber 7 are always balanced. Here, the moisture contained in the equipment in the container 1 and the decomposed gas generated in the container 1 easily permeate the fluororesin membrane 4 because the molecular weight is small. Moreover, since the structure can have a sufficiently large permeation area, the decomposed gas easily diffuses into the detection chamber 7 and comes into contact with the color-changing substance 8, causing it to change color. Therefore, if the discolored substance 8 is visually observed through the lid 9, the generation of decomposed gas can be detected at all times based on the discolored substance. It is also possible to open the valve 11 to extract the gas in the detection chamber 7 and to intermittently detect the decomposed gas in the detection chamber 7. At this time, the amount of gas extracted from the valve 11 is limited to the detection chamber 7, and even if it is released to the outside, the decomposed gas is not large enough to cause harm to the human body and is therefore safe. Further, if the gas in the detection chamber 7 is completely released and the internal pressure is lowered to atmospheric pressure, the lid 9 can be opened, and the discolored substance can be taken out and visually observed or its weight etc. can be measured. Even if the lid 9 of the detection chamber 7 is opened, the opening 1a of the container 1 is partitioned by the fluororesin membrane 4, so SF 6 gas with a large molecular weight is difficult to pass through to the detection chamber 7 side, and the permeation occurs within a short period of time. is small and can be ignored. During these operations, the SF 6 gas in the container 1 does not need to be vented and is not released, so the electrical equipment in the container 1 can be operated normally. In addition, just by attaching the lid 9 and closing the valve 11, normality can be restored, and the lid 9
It is possible to perform constant detection through transparent observation.
第２図は第２の実施例を示す。第２図におい
て、SF6ガスを封入した容器１の開口部１ａと容
器１の外壁に取り付けられた検知室７との間をフ
ツ素樹脂の膜４で仕切ることは第１の実施例と同
様であるが、フツ素樹脂膜４は、多数の孔３ａを
あけた支持材３と、検知室７を形成する有底角筒
５の底部に多数の孔５ａをあけこの底部とで挾む
ことによつて支持されている。検知室７には分解
ガスにさらされることにより電気的特性の変化や
光学的特性の変化を起こさせる検知部を挿入し外
部の測定器で測定する。この実施例では電気的特
性の変化により分解ガスを検知する検知部１３を
挿入し、その電極１４の両端のリード１５を蓋
９′を貫通したブツシング１６により外部に導出
し、計測器１７で測定する。検知室７は第１の実
施例と同様にパイプ１０の有するバルブ１１によ
り大気と連通させ得る。この装置では分解ガス透
過膜を挾む一方の支持材が検知室を形成する角筒
と一体となつているから、ガス漏れのおそれは減
少し、パツキング１２の数を減らすことができ、
組立は簡単になる。また他方の開口の蓋は透明で
ある必要はない。この装置では機器の運転中に検
出部の電気的特性の変化を常時測定記録させ、ま
たは間欠的に測定することができ、検知室は透過
膜の支持材でしやへいされているから機器側の高
電圧の影響を受けることがない。しかも機器の運
転中検知室のガスを抜き蓋を外して検知すること
も自在である。 FIG. 2 shows a second embodiment. In FIG. 2, the opening 1a of the container 1 filled with SF 6 gas and the detection chamber 7 attached to the outer wall of the container 1 are partitioned by a fluororesin film 4, as in the first embodiment. However, the fluororesin membrane 4 is sandwiched between the supporting member 3 having a large number of holes 3a and the bottom of a rectangular cylinder 5 with a bottom, which forms the detection chamber 7, having a large number of holes 5a formed at the bottom thereof. Supported by. A detection section that causes changes in electrical characteristics and optical characteristics when exposed to decomposed gas is inserted into the detection chamber 7, and measurements are made using an external measuring device. In this embodiment, a detection part 13 that detects decomposition gas by a change in electrical characteristics is inserted, and the leads 15 at both ends of the electrode 14 are led out through a bushing 16 that penetrates the lid 9', and the measurement is performed with a measuring instrument 17. do. The detection chamber 7 can be communicated with the atmosphere through a valve 11 included in a pipe 10 as in the first embodiment. In this device, one of the supporting materials sandwiching the decomposition gas permeable membrane is integrated with the rectangular tube forming the detection chamber, so the risk of gas leakage is reduced and the number of packings 12 can be reduced.
Assembly becomes easy. Further, the lid of the other opening does not need to be transparent. With this device, changes in the electrical characteristics of the detection part can be constantly measured and recorded while the device is in operation, or can be measured intermittently. unaffected by high voltage. Moreover, it is also possible to perform detection by removing the lid and draining the gas from the detection chamber while the device is in operation.
第３図は第３の実施例を示す。この実施例では
多数の孔３ａをあけた支持材３で挾んだフツ素樹
脂の膜４は、ボルト６により単独にSF6ガス２を
封入した容器１の開口１ａを覆うように取り付け
られている。検知室７は、開口部につば５ｂを有
する有底角筒５で形成され、フツ素樹脂の膜４を
挾んだ支持材３を覆うようにボルト１８で容器の
外壁に取り付けられている。この検知室７には第
２の実施例と同様な各種の検知部１３を挿入し、
機器の運転中に連続的に測定記録しまたは間欠的
に測定することができる。また、機器の運転中に
有底角筒５を取外し、検知部１３の点検を行うこ
とも自在である。勿論第１または第２の実施例に
示したように大気に連通するバルブを有するパイ
プを取付け、角筒の底を蓋として開き得るように
することもできる。 FIG. 3 shows a third embodiment. In this embodiment, a fluororesin membrane 4 sandwiched between supporting members 3 having a large number of holes 3a is attached by bolts 6 so as to cover the opening 1a of a container 1 containing SF 6 gas 2. There is. The detection chamber 7 is formed of a bottomed rectangular tube 5 having a flange 5b at the opening, and is attached to the outer wall of the container with bolts 18 so as to cover the support member 3 sandwiching the fluororesin membrane 4. Various detection units 13 similar to those in the second embodiment are inserted into this detection chamber 7,
Measurements can be recorded continuously or measured intermittently during operation of the equipment. Furthermore, it is also possible to remove the bottomed rectangular tube 5 and inspect the detection section 13 while the device is in operation. Of course, as shown in the first or second embodiment, a pipe having a valve communicating with the atmosphere may be attached so that the bottom of the rectangular tube can be opened as a lid.
以上述べたように本発明は、ガス絶縁電気機器
を収納する容器の外壁に分解ガスは透過し易いが
封入ガスは透過し難い分解ガス透過膜で仕切つた
検知室を取付け、この検知室に拡散してくる分解
ガスを従来から知られている分解ガス検知器で検
知する装置で、この分解ガスを検知することによ
り電気機器の異常を発見し、事故を未然に防ぐ装
置である。この装置では機器を収納する容器内に
は何らの検知関係の物質が挿入されることがな
く、この挿入箇所の制限や高電圧の影響を受ける
ことがない。しかも検知室には分解ガスがよく拡
散して来るので分解ガスの検知は速かで容易であ
る。また分解ガスを検知するための目視や測定は
機器の運転中に連続的にも間欠的にも行うことが
でき、かつ検知室は機器の運転中自在に開いて内
部を点検することも可能であり優れた装置であ
る。 As described above, the present invention installs a detection chamber partitioned by a decomposition gas permeable membrane that allows decomposition gas to easily permeate but does not allow the sealed gas to permeate, on the outer wall of a container housing gas-insulated electrical equipment, and diffuses into this detection chamber. This is a device that uses a conventionally known decomposed gas detector to detect the decomposed gas that comes from the decomposed gas.By detecting this decomposed gas, it is possible to discover abnormalities in electrical equipment and prevent accidents from occurring. In this device, no detection-related substance is inserted into the container that houses the device, and it is not affected by restrictions on insertion points or high voltage. Furthermore, since the decomposed gas is well diffused into the detection chamber, detection of the decomposed gas is quick and easy. In addition, visual inspection and measurement to detect decomposed gas can be performed continuously or intermittently while the equipment is in operation, and the detection chamber can be opened freely to inspect the inside while the equipment is in operation. Yes, it is an excellent device.
第１図は本発明によるガス絶縁電気機器の異常
検知装置の一つの実施例を示す縦断面図、第２図
は他の実施例を示す縦断面図、第３図は更に異な
る実施例を示す縦断面図である。
１……電気機器収納容器、２……SF6ガス、４
……フツ素樹脂の膜、７……検知室、９……検知
室の透明蓋、９′……検知室の蓋、１０……大気
連通パイプ、１１……ストツプバルブ。
FIG. 1 is a longitudinal sectional view showing one embodiment of the abnormality detection device for gas-insulated electrical equipment according to the present invention, FIG. 2 is a longitudinal sectional view showing another embodiment, and FIG. 3 is a longitudinal sectional view showing a further different embodiment. FIG. 1...Electrical equipment storage container, 2... SF6 gas, 4
...Fluorine resin film, 7...Detection chamber, 9...Transparent lid of the detection chamber, 9'...Lid of the detection chamber, 10...Air communication pipe, 11...Stop valve.
Claims (1)
を封入した密閉容器の外壁に取り付けられ前記ハ
ロゲン含有ガスの分解ガス透過膜を介して前記容
器内と連通する分解ガス検知室と、この検知室に
拡散してきた分解ガスを検知する分解ガス検知器
本体とを備えたことを特徴とするガス絶縁電気機
器の異常検知装置。 ２ 特許請求の範囲第１項記載のガス絶縁電気機
器の異常検知装置において、分解ガス透過膜はフ
ツ素樹脂であることを特徴とするガス絶縁電気機
器の異常検知装置。 ３ 特許請求の範囲第１項記載のガス絶縁電気機
器の異常検知装置において、分解ガス透過膜はポ
リイミド樹脂であることを特徴とするガス絶縁電
気機器の異常検知装置。 ４ 特許請求の範囲第１項ないし第３項のいずれ
かの項に記載したガス絶縁電気機器の異常検知装
置において、検知室がストツプバルブを有するパ
イプにより大気に連通し得ることを特徴とするガ
ス絶縁電気機器の異常検知装置。 ５ 特許請求の範囲第１項ないし第４項のいずれ
かの項に記載したガス絶縁電気機器の異常検知装
置において、検知室が蓋により大気側に開放可能
に閉鎖されていることを特徴とするガス絶縁電気
機器の異常検知装置。[Scope of Claims] 1. A decomposed gas detection chamber that is attached to the outer wall of a closed container housing electrical equipment and sealed with a halogen-containing gas insulating medium and communicating with the inside of the container through a decomposition gas permeable membrane for the halogen-containing gas. An abnormality detection device for gas-insulated electrical equipment, comprising: a decomposition gas detector body that detects decomposition gas that has diffused into the detection chamber. 2. An abnormality detection device for gas insulated electrical equipment as set forth in claim 1, wherein the decomposition gas permeable membrane is made of fluororesin. 3. An abnormality detection device for gas insulated electrical equipment according to claim 1, wherein the decomposed gas permeable membrane is made of polyimide resin. 4. The abnormality detection device for gas insulated electrical equipment as set forth in any one of claims 1 to 3, characterized in that the detection chamber can communicate with the atmosphere through a pipe having a stop valve. Abnormality detection device for electrical equipment. 5. The abnormality detection device for gas-insulated electrical equipment as set forth in any one of claims 1 to 4, characterized in that the detection chamber is closed by a lid so that it can be opened to the atmosphere. Abnormality detection device for gas insulated electrical equipment.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57078655A JPS58195427A (en) | 1982-05-11 | 1982-05-11 | Malfunction detector for gas insulated electric device |
| FR8307679A FR2526999B1 (en) | 1982-05-11 | 1983-05-09 | DETECTOR FOR DETECTING MALFUNCTION OF AN ELECTRIC APPARATUS ISOLATED BY GAS |
| CH260083A CH662657A5 (en) | 1982-05-11 | 1983-05-11 | Detector for detecting malfunctions of an electrical device which is insulated by a gas filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57078655A JPS58195427A (en) | 1982-05-11 | 1982-05-11 | Malfunction detector for gas insulated electric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58195427A JPS58195427A (en) | 1983-11-14 |
| JPS6326608B2 true JPS6326608B2 (en) | 1988-05-31 |
Family
ID=13667869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57078655A Granted JPS58195427A (en) | 1982-05-11 | 1982-05-11 | Malfunction detector for gas insulated electric device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS58195427A (en) |
| CH (1) | CH662657A5 (en) |
| FR (1) | FR2526999B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557417B2 (en) * | 1987-10-22 | 1996-11-27 | 株式会社東芝 | Abnormality monitoring method for gas filled electrical equipment |
| JPH02114168A (en) * | 1988-10-24 | 1990-04-26 | Mitsubishi Electric Corp | Gas sensor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH448259A (en) * | 1966-10-10 | 1967-12-15 | Bbc Brown Boveri & Cie | Electrical apparatus with a gaseous filling consisting at least partially of sulfur hexafluoride |
| US3866460A (en) * | 1973-05-30 | 1975-02-18 | Westinghouse Electric Corp | Gas detector for fluid-filled electrical apparatus |
-
1982
- 1982-05-11 JP JP57078655A patent/JPS58195427A/en active Granted
-
1983
- 1983-05-09 FR FR8307679A patent/FR2526999B1/en not_active Expired
- 1983-05-11 CH CH260083A patent/CH662657A5/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2526999B1 (en) | 1987-10-09 |
| JPS58195427A (en) | 1983-11-14 |
| FR2526999A1 (en) | 1983-11-18 |
| CH662657A5 (en) | 1987-10-15 |
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