JPH11337457A - Decomposed gas detecting device and method of gas insulating machinery - Google Patents
Decomposed gas detecting device and method of gas insulating machineryInfo
- Publication number
- JPH11337457A JPH11337457A JP14243698A JP14243698A JPH11337457A JP H11337457 A JPH11337457 A JP H11337457A JP 14243698 A JP14243698 A JP 14243698A JP 14243698 A JP14243698 A JP 14243698A JP H11337457 A JPH11337457 A JP H11337457A
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- Prior art keywords
- gas
- decomposed
- cartridge
- moisture
- insulating
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば、ガス絶
縁変圧器のようなガス絶縁機器の分解ガスの検知装置お
よび方法に関し、特に、水分吸着材を絶縁ガス中の水分
吸収用と分解ガス検出用の双方の目的に共用した装置お
よび方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for detecting decomposed gas in gas-insulated equipment such as a gas-insulated transformer, and more particularly to a method for detecting a decomposed gas by using a moisture adsorbent for absorbing moisture in insulating gas. Apparatus and method for both purposes.
【０００２】[0002]
【従来の技術】図２は、従来のガス絶縁変圧器の分解ガ
スの検知装置の構成を示す断面図である。密閉容器１内
に鉄心３Ａに巻線３Ｂが巻回されてなる本体３が収納さ
れ、この密閉容器１に連通するラジエター２が設けられ
ている。また、密閉容器１には、耐電圧の高い絶縁ガス
であるＳＦ6 ガス７が充填されるとともに、水分を吸収
する能力を持つ水分吸着材４が所定量配されている。さ
らに、密閉容器１の側面には開閉バルブ６Ａ，６Ｂ（例
えば、可動部がベローでシールされた気密性の高いベロ
ーバルブなど）を介してカートリッジ５が設けられてい
る。このカートリッジ５は、内部が密閉された容器であ
り、開閉バルブ６Ａ，６Ｂ間の気密な接合部８のところ
で密閉容器１側と着脱可能になっている。すなわち、接
合部８は、フランジ板同士が図示されていないパッキン
グを介してボルト止めされたものであり、接離可能であ
る。2. Description of the Related Art FIG. 2 is a sectional view showing the structure of a conventional apparatus for detecting a decomposition gas in a gas-insulated transformer. A main body 3 in which a winding 3B is wound around an iron core 3A is housed in a closed container 1, and a radiator 2 communicating with the closed container 1 is provided. The sealed container 1 is filled with an SF 6 gas 7 which is an insulating gas having a high withstand voltage, and a predetermined amount of a moisture adsorbent 4 having a capability of absorbing moisture is provided. Further, a cartridge 5 is provided on the side surface of the sealed container 1 via opening / closing valves 6A and 6B (for example, a highly airtight bellows valve having a movable portion sealed with a bellows). The cartridge 5 is a sealed container, and is detachably attached to the sealed container 1 at an airtight joint 8 between the open / close valves 6A and 6B. That is, the joint portion 8 is formed by fastening the flange plates to each other with bolts via a packing (not shown), and is capable of coming and going.
【０００３】図２において、水分吸着材４としては、例
えば、合成ゼオライトや活性アルミナなどが用いられて
いる。ＳＦ6 ガス７中に水分が存在すると本体３の耐電
圧が低下するので、ＳＦ6 ガス７中の水分量が常時、管
理値以下になるように所定量の水分吸着材４が密閉容器
１内に配されている。カートリッジ５は、本体３が熱分
解したときに発生する分解ガスの検知装置である。本体
３が異常に過熱すると、ＣＯ2 やＳＦ4 、ジメチルアセ
トアミドなど種々の分解ガスが発生する。したがって、
これらの分解ガスを検知することは、本体３が異常を起
こし過熱しているか否かを予め知るための予防措置にな
る。開閉バルブ６Ａ，６Ｂを開成し、カートリッジ５と
密閉容器１とを連通させておく。分解ガスが発生する
と、開閉バルブ６Ａ，６Ｂを介してカートリッジ５にも
分解ガスが入って来る。分解ガスを検知するときには、
開閉バルブ６Ａ，６Ｂを閉成した後、接合部８を外し、
カートリッジ５と開閉バルブ６Ｂだけを取り出す。カー
トリッジ５内部のガスは、ガスクロマトグラフなどの図
示されていない分析装置によってガス分析され、ＳＦ 6
ガス７中に含まれている分解ガスの成分が調べられる。[0003] In FIG. 2, as the moisture adsorbent 4,
For example, synthetic zeolites and activated alumina are used.
I have. SF6If moisture is present in the gas 7, the body 3 will withstand electricity.
As the pressure drops, SF6When the amount of water in gas 7 is always
A predetermined amount of moisture adsorbent 4 is sealed
1 are arranged. The cartridge 5 has a main body 3
It is a device for detecting the decomposition gas generated when disassembled. Body
If 3 overheats abnormally, COTwoAnd SFFour, Dimethylacetate
Various decomposition gases such as toamide are generated. Therefore,
Detecting these decomposed gases can cause the main unit 3 to malfunction.
It is a precautionary measure to know in advance whether or not
You. Open the on-off valves 6A and 6B and connect the cartridge 5
The closed container 1 is kept in communication. Decomposition gas is generated
And the cartridge 5 via the opening / closing valves 6A and 6B.
Decomposition gas comes in. When detecting cracked gas,
After closing the open / close valves 6A and 6B, the joint 8 is removed,
Take out only the cartridge 5 and the opening / closing valve 6B. car
The gas inside the cartridge 5 is a gas chromatograph
Gas analyzed by an analyzer not shown, SF 6
The components of the decomposed gas contained in the gas 7 are checked.
【０００４】なお、図２において、カートリッジ５を図
示されていない分析装置に直結させ、常時分解ガスの成
分を監視できるようにすることも可能である。また、図
２では、分解ガスの検知装置をガス絶縁変圧器に適用し
た例を示したが、本装置はガス絶縁開閉装置やガス絶縁
ケーブルなど一般のガス絶縁機器に適用することができ
る。In FIG. 2, the cartridge 5 may be directly connected to an analyzer (not shown) so that the components of the decomposed gas can be constantly monitored. FIG. 2 shows an example in which the detection device for the decomposed gas is applied to a gas-insulated transformer, but the present device can be applied to general gas-insulated equipment such as a gas-insulated switchgear and a gas-insulated cable.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前述し
たような従来の装置および方法は、分解ガスの検出感度
が低いという問題があった。すなわち、一般に使用され
ている水分吸着材４は、大抵の場合、水分を吸収すると
ともに分解ガスも吸収し易いという性質をもっている。
そのために、密閉容器内に発生した分解ガスは水分吸着
材にも吸収され、結果として、密閉容器およびカートリ
ッジ内のガス空間における分解ガス含有量が減ってしま
っていた。分解ガスを決して吸収しない水分吸着材があ
れば問題がないが、そのような水分吸着材は今のところ
存在しない。そのために、検出された分解ガスの成分量
は水分吸着材に吸収された分が差し引かれた値になるの
で、分析装置の検出感度が非常に低くなっていた。However, the conventional apparatus and method as described above have a problem that the sensitivity of detecting the decomposed gas is low. That is, the generally used moisture adsorbing material 4 generally has a property that it absorbs water and also easily decomposes gas.
For this reason, the decomposition gas generated in the closed container is also absorbed by the moisture adsorbent, and as a result, the content of the decomposition gas in the gas space in the closed container and the cartridge has been reduced. There is no problem if there is a moisture adsorbent that never absorbs the decomposition gas, but such a moisture adsorbent does not exist at present. Therefore, the detected amount of the component of the decomposed gas is a value obtained by subtracting the amount absorbed by the moisture adsorbent, so that the detection sensitivity of the analyzer is extremely low.
【０００６】この発明の目的は、水分吸着材に吸収され
た分解ガスも検出できるようにすることにある。An object of the present invention is to enable detection of a decomposition gas absorbed by a moisture adsorbent.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、この発明によれば、絶縁ガスで充填された密閉容器
内にガス絶縁機器本体が収納されるとともに絶縁ガス中
の水分を吸収する水分吸着材が所定量配されてなるガス
絶縁機器の前記本体が熱分解したときに発生する分解ガ
スを検知する装置であって、分解ガスの分析装置が備え
られるとともに、前記密閉容器に開閉バルブを介して着
脱可能なカートリッジが取り付けられ、このカートリッ
ジ内に前記水分吸着材が納められるようにするとよい。
それによって、開閉バルブを開成しておけば、密閉容器
に含まれている絶縁ガス中の水分はカートリッジ内の水
分吸着材が吸収するようになる。一方、本体から発生す
る分解ガスもその水分吸着材が吸収するようになる。According to the present invention, in order to attain the above object, according to the present invention, a gas insulating device main body is housed in a closed container filled with an insulating gas and absorbs moisture in the insulating gas. A device for detecting a decomposed gas generated when the main body of a gas insulating device in which a predetermined amount of a moisture adsorbent is disposed is thermally decomposed, is provided with a decomposed gas analyzer, and an open / close valve is provided in the closed container. It is preferable that a detachable cartridge is attached through the cartridge, and the moisture adsorbent is accommodated in the cartridge.
Thus, when the open / close valve is opened, the moisture in the insulating gas contained in the closed container is absorbed by the moisture adsorbent in the cartridge. On the other hand, the decomposition gas generated from the main body is also absorbed by the moisture adsorbent.
【０００８】また、かかる装置によってガス絶縁機器の
分解ガスを検知する方法であって、前記水分吸着材に吸
着された分解ガスの成分を前記分析装置で分析するとよ
い。それによって、従来検出できなかった水分吸着材に
吸収された分解ガスの成分も検出できるようになる。ま
た、かかる方法において、前記カートリッジ内のガス状
の分解ガスの成分を前記分析装置で求め、水分吸着材に
吸着された分解ガスの成分に加えるとよい。それによっ
て、ガス絶縁機器本体から発生する分解ガスの全成分を
検出することができる。[0008] Further, there is provided a method for detecting a decomposed gas of a gas insulating device by using such an apparatus, wherein the component of the decomposed gas adsorbed on the moisture adsorbent may be analyzed by the analyzer. This makes it possible to detect the components of the decomposed gas absorbed by the moisture adsorbent, which could not be detected conventionally. In this method, a component of the gaseous decomposition gas in the cartridge may be obtained by the analyzer, and may be added to a component of the decomposition gas adsorbed by the moisture adsorbent. This makes it possible to detect all components of the decomposition gas generated from the gas-insulated equipment main body.
【０００９】[0009]
【発明の実施の形態】以下、この発明を実施例に基づい
て説明する。図１は、この発明の実施例にかかるガス絶
縁変圧器の分解ガスの検知装置の構成を示す断面図であ
る。従来の構成と異なるのは、水分吸着材４がカートリ
ッジ５内に収納されている点だけである。図１のその他
の構成は、図２の従来の構成と同じであり、従来と同じ
部分は同一参照符号を付けることによって詳細な説明は
省略する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. FIG. 1 is a sectional view showing a configuration of a device for detecting a decomposed gas in a gas-insulated transformer according to an embodiment of the present invention. The only difference from the conventional configuration is that the moisture adsorbent 4 is housed in the cartridge 5. Other configurations in FIG. 1 are the same as those in the conventional configuration in FIG. 2, and the same portions as those in the conventional configuration are denoted by the same reference numerals and detailed description thereof will be omitted.
【００１０】図１において、常時は開閉バルブ６Ａ，６
Ｂを開成し、カートリッジ５と密閉容器１とを連通させ
ておく。それによって、密閉容器１内のＳＦ6 ガス７中
に水分が存在すると、開閉バルブ６Ａ，６Ｂを介してカ
ートリッジ５にもその水分が侵入して来るので、水分吸
着材４がその水分を吸収する。一方、本体３から分解ガ
スが発生すると、カートリッジ５に分解ガスが入って来
るので、水分吸着材４がその分解ガスも吸収する。分解
ガスを検知するときには、開閉バルブ６Ａ，６Ｂを閉成
した後、接合部８を外し、カートリッジ５と開閉バルブ
６Ｂだけを取り出す。カートリッジ５内部のガスは、ガ
スクロマトグラフなどの図示されていない分析装置によ
ってガス分析され、分解ガスの成分が調べられる。その
場合、カートリッジ５内のガス状の分解ガスの成分をま
ず分析装置で分析する。その後、水分吸着材４を加熱・
加圧して水分吸着材４の分解ガスの成分を抽出し、分析
装置で分析する。カートリッジ５内のガス状の分解ガス
の成分を水分吸着材４に吸着された分解ガスの成分に加
えることによって、ガス絶縁機器本体３から発生する分
解ガスの全成分を検出することができ、高い精度でガス
絶縁変圧器の分解ガスを検出することができる。また、
カートリッジが開閉バルブ６Ａ，６Ｂを介して密閉容器
１に着脱可能に取り付けられたので、水分吸着材４の水
分吸着量が飽和してもガス絶縁変圧器を運転した状態で
交換することができるようになった。従来は、水分吸着
材４が密閉容器１内にあったので、水分吸着材４を交換
するにはガス絶縁変圧器の運転を一時停止する必要があ
った。In FIG. 1, the open / close valves 6A, 6
B is opened, and the cartridge 5 and the closed container 1 are communicated. Accordingly, if water exists in the SF 6 gas 7 in the closed container 1, the water enters the cartridge 5 via the open / close valves 6A and 6B, and the water adsorbing material 4 absorbs the water. . On the other hand, when the decomposed gas is generated from the main body 3, the decomposed gas enters the cartridge 5, so that the moisture adsorbent 4 also absorbs the decomposed gas. When detecting the decomposition gas, after closing the open / close valves 6A and 6B, the joint 8 is removed, and only the cartridge 5 and the open / close valve 6B are taken out. The gas inside the cartridge 5 is subjected to gas analysis by an analyzer (not shown) such as a gas chromatograph, and the components of the decomposed gas are examined. In this case, the components of the gaseous decomposition gas in the cartridge 5 are first analyzed by the analyzer. Then, the moisture adsorbent 4 is heated and
The components of the decomposed gas of the moisture adsorbent 4 are extracted by applying pressure and analyzed by the analyzer. By adding the components of the gaseous decomposed gas in the cartridge 5 to the components of the decomposed gas adsorbed by the moisture adsorbent 4, all the components of the decomposed gas generated from the gas-insulated equipment main body 3 can be detected, and the cost is high. The decomposition gas of the gas insulated transformer can be detected with high accuracy. Also,
Since the cartridge is detachably attached to the closed container 1 via the open / close valves 6A and 6B, the cartridge can be replaced while the gas insulated transformer is operating even if the amount of moisture adsorbed by the moisture adsorbent 4 is saturated. Became. Conventionally, since the moisture adsorbent 4 was in the closed vessel 1, it was necessary to temporarily stop the operation of the gas insulating transformer to replace the moisture adsorbent 4.
【００１１】図１では、分解ガスの検知装置をガス絶縁
変圧器に適用した例を示したが、本装置はガス絶縁開閉
装置やガス絶縁ケーブルなど一般のガス絶縁機器にも適
用することができる。FIG. 1 shows an example in which the detector for detecting a decomposed gas is applied to a gas-insulated transformer, but the present device can also be applied to general gas-insulated equipment such as a gas-insulated switchgear and a gas-insulated cable. .
【００１２】[0012]
【発明の効果】この発明は前述のように、分解ガスの分
析装置が備えられるとともに密閉容器に開閉バルブを介
して着脱可能なカートリッジが取り付けられ、このカー
トリッジ内に前記水分吸着材が納められ、水分吸着材に
吸着された分解ガスの成分を分析することによって、分
解ガスの検出感度が向上した。また、ガス絶縁機器の運
転中でも水分吸着材を交換することができるようにな
り、負荷側を停電させる必要もなくなった。According to the present invention, as described above, a device for analyzing a decomposition gas is provided, and a detachable cartridge is attached to an airtight container via an open / close valve, and the moisture adsorbent is placed in the cartridge. By analyzing the components of the decomposed gas adsorbed on the moisture adsorbent, the detection sensitivity of the decomposed gas was improved. Further, the moisture adsorbing material can be replaced even during the operation of the gas insulating device, and it is no longer necessary to stop the power on the load side.
【００１３】また、かかる方法において、カートリッジ
内のガス状の分解ガスの成分を分析し、水分吸着材に吸
着された分解ガスの成分に加えることによって、分解ガ
スの分析精度がさらに向上するようになった。In this method, the analysis accuracy of the decomposed gas is further improved by analyzing the components of the gaseous decomposed gas in the cartridge and adding the analyzed component to the decomposed gas component adsorbed by the moisture adsorbent. became.
【図１】この発明の実施例にかかるガス絶縁変圧器の分
解ガスの検知装置の構成を示す断面図FIG. 1 is a cross-sectional view illustrating a configuration of a device for detecting a decomposition gas of a gas-insulated transformer according to an embodiment of the present invention.
【図２】従来のガス絶縁変圧器の分解ガスの検知装置の
構成を示す断面図FIG. 2 is a cross-sectional view showing a configuration of a conventional apparatus for detecting a decomposition gas of a gas-insulated transformer.
１：密閉容器、２：ラジエター、３：本体、４：水分吸
着材、５：カートリッジ、６Ａ，６Ｂ：開閉バルブ、
７：絶縁ガス、８：接合部1: closed container, 2: radiator, 3: body, 4: moisture adsorbent, 5: cartridge, 6A, 6B: open / close valve,
7: insulating gas, 8: joint
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮本 昌広 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 蛭田 玲子 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 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Miyamoto 1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki, Kanagawa Prefecture Inside Fuji Electric Co., Ltd. No. 1 Fuji Electric Co., Ltd.
Claims (3)
縁機器本体が収納されるとともに絶縁ガス中の水分を吸
収する水分吸着材が所定量配されてなるガス絶縁機器の
前記本体が熱分解したときに発生する分解ガスを検知す
る装置であって、分解ガスの分析装置が備えられるとと
もに、前記密閉容器に開閉バルブを介して着脱可能なカ
ートリッジが取り付けられ、このカートリッジ内に前記
水分吸着材が納められたことを特徴とするガス絶縁機器
の分解ガスの検知装置。1. A gas-insulated equipment body, wherein a main body of the gas-insulated equipment is housed in a closed container filled with an insulating gas and a predetermined amount of a moisture adsorbing material for absorbing moisture in the insulating gas is provided. A device for detecting a decomposition gas generated when decomposed, comprising a decomposition gas analyzer, a detachable cartridge attached to the closed container via an open / close valve, and the moisture adsorption device inside the cartridge. A device for detecting a decomposition gas of a gas insulating device, wherein the material is contained.
機器の分解ガスを検知する方法であって、前記水分吸着
材に吸着された分解ガスの成分を前記分析装置で分析す
ることを特徴とするガス絶縁機器の分解ガスの検知方
法。2. A method for detecting a decomposed gas in a gas insulating device by the apparatus according to claim 1, wherein a component of the decomposed gas adsorbed on the moisture adsorbent is analyzed by the analyzer. Detection method of decomposition gas of gas insulation equipment.
トリッジ内のガス状の分解ガスの成分を前記分析装置で
求め、水分吸着材に吸着された分解ガスの成分に加える
ことを特徴とするガス絶縁機器の分解ガスの検知方法。3. The method according to claim 2, wherein a component of the gaseous decomposed gas in the cartridge is obtained by the analyzer and added to the component of the decomposed gas adsorbed on the moisture adsorbent. Detection method of decomposition gas in gas insulation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14243698A JPH11337457A (en) | 1998-05-25 | 1998-05-25 | Decomposed gas detecting device and method of gas insulating machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14243698A JPH11337457A (en) | 1998-05-25 | 1998-05-25 | Decomposed gas detecting device and method of gas insulating machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11337457A true JPH11337457A (en) | 1999-12-10 |
Family
ID=15315279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14243698A Withdrawn JPH11337457A (en) | 1998-05-25 | 1998-05-25 | Decomposed gas detecting device and method of gas insulating machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11337457A (en) |
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| JP2008067537A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Gas insulated power device |
| JP2008067538A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Method for detecting abnormality in gas insulated power apparatus |
| JP2008067536A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Gas insulated power apparatus and abnormality detection method therefor |
| CN107104377A (en) * | 2017-06-06 | 2017-08-29 | 成都雷纳斯科技有限公司 | The online replacing options of air insulating device adsorbent |
| CN107126819A (en) * | 2017-06-06 | 2017-09-05 | 成都雷纳斯科技有限公司 | A kind of new gas insulator arrangement adsorbent units |
| CN107178633A (en) * | 2017-06-06 | 2017-09-19 | 成都雷纳斯科技有限公司 | Air insulating device adsorbent units |
-
1998
- 1998-05-25 JP JP14243698A patent/JPH11337457A/en not_active Withdrawn
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|---|---|---|---|---|
| JP2008067535A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Method for detecting abnormality in gas insulated power apparatus |
| JP2008067537A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Gas insulated power device |
| JP2008067538A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Method for detecting abnormality in gas insulated power apparatus |
| JP2008067536A (en) * | 2006-09-08 | 2008-03-21 | Central Res Inst Of Electric Power Ind | Gas insulated power apparatus and abnormality detection method therefor |
| CN107104377A (en) * | 2017-06-06 | 2017-08-29 | 成都雷纳斯科技有限公司 | The online replacing options of air insulating device adsorbent |
| CN107126819A (en) * | 2017-06-06 | 2017-09-05 | 成都雷纳斯科技有限公司 | A kind of new gas insulator arrangement adsorbent units |
| CN107178633A (en) * | 2017-06-06 | 2017-09-19 | 成都雷纳斯科技有限公司 | Air insulating device adsorbent units |
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