JP2013090534A - Gas insulated apparatus - Google Patents

Gas insulated apparatus Download PDF

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JP2013090534A
JP2013090534A JP2011231681A JP2011231681A JP2013090534A JP 2013090534 A JP2013090534 A JP 2013090534A JP 2011231681 A JP2011231681 A JP 2011231681A JP 2011231681 A JP2011231681 A JP 2011231681A JP 2013090534 A JP2013090534 A JP 2013090534A
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sealed container
stress
gas
insulating
luminescent material
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Xuegin Zhang
血琴 張
Masayuki Sato
正幸 佐藤
Koichi Hoshina
好一 保科
Hideaki Shirai
英明 白井
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Toshiba Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a gas insulated apparatus capable of performing foreign matter management while securing safety of an operator.SOLUTION: A gas insulated apparatus comprises: sealed containers 2 filled with insulating gases 4; high-voltage conductors 1 which are disposed in the sealed containers 2 and are applied with high-voltages for transmitting power; and insulating spacers 3 for supporting the high-voltage conductors 1 in the sealed containers 2. Further, stress light-emitting materials 9 which emit light due to collisions of foreign matters therewith are applied on inner surfaces of the sealed containers 2. The sealed containers 2 are provided with observing means for observing light emission of the stress light-emitting materials 9 so as to face the stress light-emitting materials 9.

Description

本発明の実施形態は、密閉容器内に絶縁ガスが封入されたガス絶縁機器に関する。発電所や変電所等において使用されるガス絶縁開閉装置、及びこれが備えるガス絶縁母線に関する。   Embodiments described herein relate generally to a gas insulating device in which an insulating gas is sealed in a sealed container. The present invention relates to a gas insulated switchgear used in a power plant, a substation, and the like, and a gas insulated bus provided therein.

現在、高発電所や変電所等の電圧大容量の電力系統においては、遮断器、開閉装置、変圧器等の各種機器が配置されているが、これら機器には都市部の地下変電所への適用や、経済性の向上が求められており、機器のコンパクト化を図ることが急務となっている。   Currently, in high-voltage power systems such as high power plants and substations, various devices such as circuit breakers, switchgears, and transformers are arranged. These devices are connected to underground substations in urban areas. There is an urgent need to reduce the size of the equipment because there is a need for improved application and economic efficiency.

機器のコンパクト化を進展させるには、絶縁性能の向上が極めて重要な役割を担っている。コンパクト化の進展に伴い、機器内部の高電圧導体とその容器との間の絶縁距離が短くなり、絶縁破壊の危険性が高まるからである。そこで、これら機器の多くは、密閉容器内に絶縁ガスを封入したガス絶縁機器として構成されることで、絶縁性能が高められている。   In order to advance the downsizing of equipment, improvement of insulation performance plays an extremely important role. This is because with the progress of downsizing, the insulation distance between the high-voltage conductor inside the device and its container is shortened, and the risk of dielectric breakdown increases. Thus, many of these devices are configured as gas-insulated devices in which an insulating gas is sealed in a sealed container, so that the insulation performance is enhanced.

ガス絶縁機器の一例として、開閉装置を例にとり説明する。図６に示すように、この開閉装置は、遮断器２１、母線２２、断路器２３、接地開閉器２４、電圧変成器２５、及びケーブルヘッド２６を有し、制御盤２７により制御されている。遮断器２１には、その一方の口出し部に母線２２が接続され、他方の口出し部には、断路器２３、接地開閉器２４、及び電圧変成器２５等を介してケーブル線路側のケーブルヘッド２６が接続されている。これら各機器は、高電圧導体によって互いに電気的に接続されている。   As an example of the gas insulation device, a switchgear will be described as an example. As shown in FIG. 6, the switchgear includes a circuit breaker 21, a bus 22, a disconnector 23, a ground switch 24, a voltage transformer 25, and a cable head 26, and is controlled by a control panel 27. The circuit breaker 21 is connected to a bus 22 at one of its outlets. The other outlet is connected to a cable head 26 on the cable line side via a disconnector 23, a ground switch 24, a voltage transformer 25, and the like. Is connected. Each of these devices is electrically connected to each other by a high voltage conductor.

そして、図７に示すように、各機器を接続する高電圧導体１は、絶縁物である絶縁スペーサ３によって中空に支持されることで、密閉容器２内に挿通しており、この密閉容器２内に絶縁や消弧のための絶縁ガス４を充填することで、密閉容器２と高電圧導体１とを電気的に絶縁している。   As shown in FIG. 7, the high-voltage conductor 1 that connects each device is hollowly supported by an insulating spacer 3 that is an insulator, so that the high-voltage conductor 1 is inserted into the sealed container 2. The sealed container 2 and the high-voltage conductor 1 are electrically insulated by filling the inside with an insulating gas 4 for insulation and arc extinguishing.

このため、ガス絶縁機器は、絶縁性能及び安全性に優れ、また、設置スペースの縮小化が可能である。しかしながら、ガス絶縁機器の製造、組立、輸送などのプロセスにおいては、異物が混入してしまい、特に電界の高い箇所では、この異物が挙動してしまうおそれがある。電界の高い箇所としては、密閉容器２の底面電界、または絶縁スペーサ３の沿面電界が挙げられる。このような箇所で異物が挙動してしまうと、異物挙動による絶縁破壊のおそれが生じる。   For this reason, the gas insulation apparatus is excellent in insulation performance and safety, and the installation space can be reduced. However, foreign substances are mixed in processes such as manufacturing, assembling, and transporting gas-insulated equipment, and there is a risk that these foreign substances will behave particularly in places where the electric field is high. Examples of the high electric field include the bottom surface electric field of the sealed container 2 or the creeping electric field of the insulating spacer 3. If the foreign substance behaves in such a place, there is a risk of dielectric breakdown due to the foreign substance behavior.

そこで、異物挙動を抑制する対策として、高電界が発生し易い箇所に絶縁コーティングを塗布することが考えられる（例えば、特許文献１参照）。密閉容器２の内面、絶縁スペーサ３の沿面、及び高電圧導体１の周面にフッ素樹脂被覆等の絶縁コーティングを塗布するものである。フッ素樹脂被覆であれば、異物の保持能を有しており異物の起立や浮上を防止でき、仮に異物が起立や浮上をしても、その優れた絶縁耐力により、全路破壊を防ぐことができる。   Therefore, as a measure for suppressing the foreign substance behavior, it is conceivable to apply an insulating coating to a place where a high electric field is likely to occur (see, for example, Patent Document 1). An insulating coating such as a fluororesin coating is applied to the inner surface of the hermetic container 2, the creeping surface of the insulating spacer 3, and the peripheral surface of the high voltage conductor 1. Fluorocarbon resin coating has the ability to retain foreign matter and prevent the foreign matter from standing up and rising, and even if the foreign matter stands up and rises, it can prevent the destruction of the whole road by its excellent dielectric strength. it can.

しかしながら、ガス絶縁機器の急速なコンパクト化の進展を考えると、近い将来は、現行の絶縁コーティングであっても異物挙動に対する抑制能力が不足してくるものと考えられる。   However, considering the rapid progress of downsizing of gas insulation equipment, it is considered that in the near future, even the current insulation coating will lack the ability to suppress foreign matter behavior.

そのため、異物挙動の抑制方策と並行して、ガス絶縁機器の異物管理能力の向上をも目指していかなくてはならない。一般的に、異物を管理する方法としては、超音波によって運転中のガス絶縁開閉装置内部に動いた異物を見つける超音波診断法がある（例えば、特許文献２参照。）。   Therefore, in parallel with measures for suppressing foreign matter behavior, it is also necessary to aim to improve the foreign matter management ability of gas insulation equipment. In general, as a method for managing foreign matter, there is an ultrasonic diagnostic method for finding foreign matter that has moved inside the gas-insulated switchgear that is being operated by ultrasound (see, for example, Patent Document 2).

この方法は、密閉容器２の表面に超音波探触子を取り付け、受信した超音波信号をオシロスコープ等の解析装置で観測するものである。異物が存在すると、その異物からの反射波を距離減衰特性に基づき解析し、異物の存在とおおよその位置を検出することができる。   In this method, an ultrasonic probe is attached to the surface of the sealed container 2, and the received ultrasonic signal is observed with an analyzer such as an oscilloscope. If a foreign object exists, the reflected wave from the foreign object can be analyzed based on the distance attenuation characteristics, and the presence and approximate position of the foreign object can be detected.

特許３０２８９７５号公報Japanese Patent No. 3028975 特開平１０−１６０５６３号公報JP-A-10-160563

超音波診断による異物管理の手法では、ガス絶縁装置に電圧が印加されている間に、作業員が当該機器に近づかねばならない。そのため、作業員に感電の危険性が伴う。また、超音波センサの感度によっては、異物が見つからない可能性もある。   In the foreign matter management method based on the ultrasonic diagnosis, an operator must approach the equipment while a voltage is applied to the gas insulation device. As a result, there is a risk of electric shock to the workers. Further, depending on the sensitivity of the ultrasonic sensor, there is a possibility that a foreign object cannot be found.

そのため、異物管理の手法として、作業員の安全性を確保しつつ、異物の発見精度を上げ、異物をより確実に除去することのできる新しい手法が待望されている。   Therefore, there is a need for a new method for foreign matter management that can ensure the safety of workers, increase the accuracy of foreign matter detection, and remove foreign matters more reliably.

本発明の実施形態は、上記の課題を解消するために提案されたものであり、作業員の安全性を確保しつつ、異物管理を行うことのできるガス絶縁機器を提供することを目的としている。   Embodiments of the present invention have been proposed to solve the above-described problems, and an object of the present invention is to provide a gas insulating device capable of performing foreign matter management while ensuring the safety of workers. .

上記の目的を達成するために、実施形態のガス絶縁機器は、絶縁ガスが封入された密閉容器と、密閉容器内に挿通され、電力を運送するための高電圧が印加された高電圧導体と、高電圧導体を密閉容器内に支持する絶縁スペーサとを備えている。そして、この密閉容器の内面には、異物の衝突によって発光する応力発光材料が塗布され、この応力発光材料を臨むように、前記発光を観測するための観測手段が備えられている。   In order to achieve the above object, the gas insulating device of the embodiment includes a sealed container in which an insulating gas is sealed, a high voltage conductor that is inserted into the sealed container and applied with a high voltage for carrying power. And an insulating spacer for supporting the high voltage conductor in the sealed container. The inner surface of the sealed container is coated with a stress luminescent material that emits light when a foreign object collides, and observation means for observing the light emission is provided so as to face the stress luminescent material.

また、他の実施形態に係るガス絶縁機器は、応力発光材料が絶縁スペーサの表面に塗布されている。さらに、他の実施形態に係るガス絶縁機器は、応力発光材料が密閉容器の外面に塗布されている。   In the gas insulating device according to another embodiment, the stress luminescent material is applied to the surface of the insulating spacer. Furthermore, in the gas insulating device according to another embodiment, the stress luminescent material is applied to the outer surface of the sealed container.

第１の実施形態に係るガス絶縁機器の高電圧導体部分を示す模式図である。It is a schematic diagram which shows the high voltage conductor part of the gas insulation apparatus which concerns on 1st Embodiment. 第１の実施形態に係るガス絶縁開閉装置が有する応力発光材料を示す模擬図である。It is a simulation figure which shows the stress luminescent material which the gas insulated switchgear concerning a 1st embodiment has. 第２の実施形態に係るガス絶縁機器の高電圧導体部分を示す模式図である。It is a schematic diagram which shows the high voltage conductor part of the gas insulation apparatus which concerns on 2nd Embodiment. 第３の実施形態に係るガス絶縁機器の高電圧導体部分を示す模式図である。It is a schematic diagram which shows the high voltage conductor part of the gas insulation apparatus which concerns on 3rd Embodiment. 第４の実施形態に係るガス絶縁機器の高電圧導体部分を示す模式図である。It is a schematic diagram which shows the high voltage conductor part of the gas insulation apparatus which concerns on 4th Embodiment. ガス絶縁機器の一例であるガス絶縁開閉装置の全体構成を示す模式図である。It is a schematic diagram which shows the whole structure of the gas insulation switchgear which is an example of a gas insulation apparatus. 従来のガス絶縁機器の高電圧導体部分の構成を示す模式図である。It is a schematic diagram which shows the structure of the high voltage conductor part of the conventional gas insulation apparatus.

以下、ガス絶縁機器の各実施形態について、図面を参照して具体的に説明する。   Hereinafter, each embodiment of a gas insulation apparatus is concretely described with reference to drawings.

（第１の実施形態）
（構成）
まず、第１の実施形態に係るガス絶縁機器について説明する。図１に第１の実施形態に係るガス絶縁機器を構成する高電圧導体１及びこれを収容する密閉容器２を示す。図１の（ａ）は、高電圧導体１及び密閉容器２を側面から見た断面図、（ｂ）は、高電圧導体１及び密閉容器２を輪切りにした断面図である。 (First embodiment)
(Constitution)
First, the gas insulation apparatus according to the first embodiment will be described. FIG. 1 shows a high-voltage conductor 1 constituting a gas-insulated device according to the first embodiment and a sealed container 2 that accommodates the high-voltage conductor 1. 1A is a cross-sectional view of the high-voltage conductor 1 and the sealed container 2 as viewed from the side, and FIG. 1B is a cross-sectional view of the high-voltage conductor 1 and the sealed container 2 cut into a circle.

図１に示すように、密閉容器２の内部には、高電圧導体１が挿通している。この高電圧導体１は、密閉容器２の内面と離間させるべく、絶縁スペーサ３によって中空に支持されている。また、密閉容器２の内面には、異物の衝突に応答して発光する応力発光材料９が塗布されている。更に、密閉容器２には、この応力発光材料９と対向するように、監視窓１０と受光部１１が設けられている。受光部１１は、監視窓１０越しに設置されている。   As shown in FIG. 1, a high voltage conductor 1 is inserted into the sealed container 2. The high voltage conductor 1 is supported in a hollow state by an insulating spacer 3 so as to be separated from the inner surface of the sealed container 2. A stress-stimulated luminescent material 9 that emits light in response to the collision of a foreign object is applied to the inner surface of the sealed container 2. Further, the closed container 2 is provided with a monitoring window 10 and a light receiving portion 11 so as to face the stress luminescent material 9. The light receiving unit 11 is installed over the monitoring window 10.

密閉容器２は、金属製の容器である。この密閉容器２には絶縁ガス４が封入されている。絶縁ガス４としては、ＳＦ６ガスが挙げられる。近年、ＳＦ６ガスは地球温暖化係数の高いガスであるため、排出規制対象に指定されている。そのため、環境低負荷化の観点から、封入する絶縁ガス４として、自然由来ガスである空気、二酸化炭素、酸素、窒素、またはそれらの混合ガスを用いるようにしてもよい。 The sealed container 2 is a metal container. An insulating gas 4 is sealed in the sealed container 2. Examples of the insulating gas 4 include SF 6 gas. In recent years, SF 6 gas is a gas with a high global warming potential, and therefore has been designated as an emission control target. Therefore, from the viewpoint of reducing the environmental load, naturally-derived gas, such as air, carbon dioxide, oxygen, nitrogen, or a mixed gas thereof may be used as the insulating gas 4 to be sealed.

絶縁スペーサ３は、絶縁物であり、コーン形状を有している。絶縁スペーサ３の裾野には、フランジが形成されている。絶縁スペーサ３は、密閉容器２間の継ぎ目にフランジが挟み込まれることで、コーンの頂点部分が密閉容器２の軸線と一致された状態で密閉容器２内に取り付けられている。   The insulating spacer 3 is an insulator and has a cone shape. A flange is formed at the bottom of the insulating spacer 3. The insulating spacer 3 is attached in the sealed container 2 in a state where the apex portion of the cone is aligned with the axis of the sealed container 2 by sandwiching a flange at the joint between the sealed containers 2.

絶縁スペーサ３のコーン頂点部分は、平面領域となっている。絶縁スペーサ３の平面領域には、平面領域よりも一回り小さい開口が設けられている。この絶縁スペーサ３の開口には、接触子７が挿入されている。接触子７は、絶縁スペーサ３のコーン頂点部分の厚みよりも長い導電性の円柱体であり、絶縁スペーサ３の両側から突出している。   The cone apex portion of the insulating spacer 3 is a planar region. An opening that is slightly smaller than the planar region is provided in the planar region of the insulating spacer 3. A contact 7 is inserted into the opening of the insulating spacer 3. The contact 7 is a conductive cylinder longer than the thickness of the cone apex portion of the insulating spacer 3 and protrudes from both sides of the insulating spacer 3.

高電圧導体１は、例えば、アルミニウムや銅など単一材料で形成された円柱体である。この高電圧導体１は、絶縁スペーサ３のコーン頂点部分の表面及び裏面にそれぞれ対向配置されており、密閉容器２の軸線と概略一致する。高電圧導体１の少なくとも両端は、中空部となっている。高電圧導体１は、絶縁スペーサ３を貫通した接触子７が中空部に挿入されることにより、接触子７を介して絶縁スペーサ３に支持される。   The high voltage conductor 1 is a cylindrical body formed of a single material such as aluminum or copper, for example. The high-voltage conductor 1 is disposed opposite to the front and back surfaces of the cone apex portion of the insulating spacer 3 and substantially coincides with the axis of the sealed container 2. At least both ends of the high voltage conductor 1 are hollow portions. The high voltage conductor 1 is supported by the insulating spacer 3 through the contact 7 when the contact 7 penetrating the insulating spacer 3 is inserted into the hollow portion.

また、高電圧導体１の両端内部には、導電性のコンタクト８が設けられている。コンタクト８は、接触子７の先端周囲と高電圧導体１の内面とに接触している。すなわち、高電圧導体１は、接触子７とコンタクト８とを介して隣の高電圧導体１と電気的に接続されている。母線２２又は接続機器の中端部分においては、この電気的接続態様により、複数の高電圧導体１が継ぎ合わせられて、全体として一本の電路を形成する。   In addition, conductive contacts 8 are provided inside both ends of the high-voltage conductor 1. The contact 8 is in contact with the periphery of the tip of the contact 7 and the inner surface of the high voltage conductor 1. That is, the high voltage conductor 1 is electrically connected to the adjacent high voltage conductor 1 via the contact 7 and the contact 8. In the busbar 22 or the middle end portion of the connection device, a plurality of high voltage conductors 1 are joined together by this electrical connection mode to form a single electric circuit as a whole.

応力発光材料９は、密閉容器２の両端の下部に塗布され、絶縁スペーサ３と隣接している。その塗布範囲は、密閉容器２の周方向において、内周約３分の１にわたり、密閉容器２の長さ方向において、絶縁スペーサ３の位置から密閉容器２の径と同等の長さまで及ぶ。この塗布範囲は、密閉容器２の接合部及び絶縁スペーサ３の近傍を意味し、異物の存在可能性が他所と比べて高く、また電界が他所と比べて高いために絶縁破壊を起こしやすい範囲である。   The stress-stimulated luminescent material 9 is applied to the lower part of both ends of the sealed container 2 and is adjacent to the insulating spacer 3. The application range extends from the position of the insulating spacer 3 to a length equivalent to the diameter of the sealed container 2 in the length direction of the sealed container 2 over about one third of the inner circumference in the circumferential direction of the sealed container 2. This application range means the vicinity of the junction of the sealed container 2 and the insulating spacer 3, and the possibility that foreign matter is present is higher than in other places and the electric field is higher than in other places, so that dielectric breakdown is likely to occur. is there.

この応力発光材料９は、図２に示すように、機械的外力によって発光する応力発光素子９ａを透明性絶縁樹脂９ｂに充填したものである。応力発光素子９ａとしては、一例としてアルミン酸ストロンチウムのようなアルミン酸塩が挙げられる。この応力発光素子９ａは、その粒径を数μｍ以下とし、透明性絶縁樹脂９ｂになるべく多く充填されることが望ましい。ガス絶縁機器に存在する可能性のある異物は、０．１ｍｍ程度の大きさのものが多く、このような細かい異物を精度よく検出するためである。   As shown in FIG. 2, the stress-stimulated luminescent material 9 is made by filling a transparent insulating resin 9b with a stress-stimulated light emitting element 9a that emits light by a mechanical external force. An example of the stress light emitting element 9a is an aluminate such as strontium aluminate. It is desirable that the stress light emitting element 9a has a particle size of several μm or less and is filled as much as possible with the transparent insulating resin 9b. This is because foreign substances that may exist in the gas-insulated equipment are often about 0.1 mm in size, so that such fine foreign substances can be detected with high accuracy.

監視窓１０及び受光部１１は、密閉容器２の両端に塗布された応力発光材料９を観察する監視手段であり、応力発光材料９を臨めるように、密閉容器２の上半分側、且つ密閉容器２の両端に一対ずつ配置される。受光部１１は、例えば、フォトカプラ等の受光センサやビデオカメラであり、監視窓１０を介して応力発光材料９の発光を感知する。   The monitoring window 10 and the light receiving unit 11 are monitoring means for observing the stress-stimulated luminescent material 9 applied to both ends of the sealed container 2, and the upper half side of the sealed container 2 and the sealed container so as to face the stressed luminescent material 9. A pair is arranged at both ends of the two. The light receiving unit 11 is, for example, a light receiving sensor such as a photocoupler or a video camera, and senses light emission of the stress light emitting material 9 through the monitoring window 10.

（作用・効果）
このようなガス絶縁機器の作用について説明する。まず、異物は、密閉容器２の接合部及び絶縁スペーサ３の近傍に存在する可能性が高い。そのため、異物は、密閉容器２の両端側の内面に衝突しやすい。そして、この衝突位置には、応力発光材料９が塗布されている。応力発光材料９が塗布された範囲に異物が衝突すると、応力発光材料９に充填された応力発光素子９ａに衝撃等の機械的外力が加わるため、発光現象が生じる。 (Action / Effect)
The operation of such a gas insulating device will be described. First, there is a high possibility that the foreign matter exists in the vicinity of the joint portion of the sealed container 2 and the insulating spacer 3. Therefore, the foreign matter is likely to collide with the inner surfaces of both ends of the sealed container 2. And the stress luminescent material 9 is apply | coated to this collision position. When a foreign matter collides with the area where the stress-stimulated luminescent material 9 is applied, a mechanical external force such as an impact is applied to the stress-stimulated light-emitting element 9 a filled in the stress-stimulated luminescent material 9, thereby causing a light emission phenomenon.

応力発光素子９ａが発した光は、応力発光材料９に臨む監視窓１０に至り、監視窓１０越しに受光部１１によって捉えられる。受光部１１が応力発光材料９の発光を感知した場合には、その発光位置に異物が存在することを示す。   The light emitted from the stress light emitting element 9 a reaches the monitoring window 10 facing the stress light emitting material 9 and is captured by the light receiving unit 11 through the monitoring window 10. When the light receiving unit 11 senses light emission from the stress light emitting material 9, it indicates that a foreign substance exists at the light emitting position.

従って、受光部１１をガス絶縁機器と離して設置した報知手段と電気的に接続しておき、受光部１１の感知に応じて報知手段が異物検出を報知するようにしておけば、保守担当者はガス絶縁機器に近づくことなく、遠隔監視によって異物の存在を知ることができる。   Therefore, if the light receiving unit 11 is electrically connected to the notifying unit installed apart from the gas insulating device, and the notifying unit notifies the foreign object detection in response to the detection of the light receiving unit 11, the maintenance person Can detect the presence of foreign objects by remote monitoring without approaching the gas-insulated equipment.

報知手段としては、モニタ、スピーカ、パトランプ等が挙げられ、モニタに異物検出を示す画像を表示させたり、スピーカに音声を出力させたり、パトランプを点灯させるようにすればよい。   Examples of the notification means include a monitor, a speaker, a patrol lamp, and the like, and an image indicating foreign object detection may be displayed on the monitor, audio may be output from the speaker, or the patrol lamp may be turned on.

以上のように、第１の実施形態に係るガス絶縁機器は、絶縁ガスが封入された密閉容器２内に、高電圧導体１を絶縁スペーサ３で支持することで挿通させ、この密閉容器２の内面に応力発光材料９を塗布するようにした。そして、この応力発光材料９の異物の衝突による発光を観測窓１０や受光部１１によって観測するようにした。これにより、異物の存在を遠隔監視でき、保守担当者が感電する危険性を回避することが可能となる。   As described above, the gas insulating apparatus according to the first embodiment is inserted into the sealed container 2 in which the insulating gas is sealed by supporting the high voltage conductor 1 with the insulating spacer 3. The stress luminescent material 9 was applied to the inner surface. Then, the light emission due to the collision of the foreign substance of the stress luminescent material 9 is observed by the observation window 10 or the light receiving unit 11. As a result, the presence of a foreign object can be remotely monitored, and the risk of electric shock from maintenance personnel can be avoided.

また、第１の実施形態では、応力発光材料９を密閉容器２の下部に周の３分の１にわたって、絶縁スペーサ３の位置から密閉容器２の径と同等の長さまで及ぶように、絶縁スペーサ３に隣接する密閉容器２の両端に塗布した。すなわち、異物の存在可能性が他所と比べて高く、また電界が他所と比べて高いために絶縁破壊を起こしやすい位置を重点的に監視するようにした。これにより、異物を効果的に検出及び除去することができ、ガス絶縁機器の絶縁性能を効率よく確保しつつ、機器の寸法を効率よく縮小することができる。   Further, in the first embodiment, the insulating luminescent material 9 is extended from the position of the insulating spacer 3 to the length equivalent to the diameter of the sealed container 2 over a third of the circumference at the lower part of the sealed container 2. 3 was applied to both ends of the airtight container 2 adjacent to 3. That is, since the possibility of the presence of foreign matter is higher than in other places and the electric field is higher than in other places, the position where dielectric breakdown is likely to occur is intensively monitored. Thereby, a foreign material can be detected and removed effectively, and the dimension of an apparatus can be reduced efficiently, ensuring the insulation performance of a gas insulation apparatus efficiently.

（第２の実施形態）
（構成）
第２の実施形態に係るガス絶縁機器について図３を参照しつつ詳細に説明する。図３は、第２の実施形態に係るガス絶縁機器の高電圧導体１及び密閉容器２を示す模式図である。図３の（ａ）は、高電圧導体１及び密閉容器２を側面から見た断面図、（ｂ）は、高電圧導体１及び密閉容器２を輪切りにした断面図である。 (Second Embodiment)
(Constitution)
The gas insulation apparatus according to the second embodiment will be described in detail with reference to FIG. FIG. 3 is a schematic diagram showing the high-voltage conductor 1 and the sealed container 2 of the gas insulation device according to the second embodiment. 3A is a cross-sectional view of the high-voltage conductor 1 and the sealed container 2 as viewed from the side, and FIG. 3B is a cross-sectional view of the high-voltage conductor 1 and the sealed container 2 cut in a circle.

図３に示すように、第２の実施形態に係るガス絶縁機器では、密閉容器２の外面に応力発光材料９を塗布している。具体的には、応力発光材料９は、密閉容器２の外面両端の下部に塗布され、その塗布範囲は、密閉容器２の周方向において、内周約３分の１にわたり、密閉容器２の長さ方向において、絶縁スペーサ３の位置から密閉容器２の径と同等の長さまで及ぶ。   As shown in FIG. 3, in the gas insulating device according to the second embodiment, the stress luminescent material 9 is applied to the outer surface of the sealed container 2. Specifically, the stress-stimulated luminescent material 9 is applied to the lower portions of both ends of the outer surface of the sealed container 2, and the application range is about one third of the inner circumference in the circumferential direction of the sealed container 2. In the vertical direction, it extends from the position of the insulating spacer 3 to a length equivalent to the diameter of the sealed container 2.

ガス絶縁機器の一種であるガス絶縁開閉装置において、運転電圧より高い電圧で試験を実施する場合には、異物の挙動は激しくなり、異物が密閉容器２に衝突した際の応力は、密閉容器２の外側まで達する。そのため、密閉容器２の外面に応力発光材料９を塗布した場合であっても、応力発光材料９は異物の衝突を感知して発光することができる。   In a gas insulated switchgear which is a kind of gas insulated equipment, when a test is performed at a voltage higher than the operating voltage, the behavior of the foreign matter becomes intense, and the stress when the foreign matter collides with the closed vessel 2 is Reach to the outside. Therefore, even when the stress-stimulated luminescent material 9 is applied to the outer surface of the sealed container 2, the stress-stimulated luminescent material 9 can emit light upon detecting the collision of a foreign object.

従って、応力発光材料９を密閉容器２の外面に塗布した場合には、ガス絶縁機器の外部から保守担当者による直接視認によって異物の存在を監視できるため、監視窓１０を設置する必要が無くなり、ガス絶縁機器の製造コストを削減することができる。尚、直接視認する以外にも、ガス絶縁機器の外部に受光センサやビデオカメラ等の受光部１１を設置するようにしてもよい。   Therefore, when the stress-stimulated luminescent material 9 is applied to the outer surface of the sealed container 2, the presence of a foreign object can be monitored from the outside of the gas-insulated device by direct visual recognition by a maintenance person. The manufacturing cost of gas insulation equipment can be reduced. In addition to direct visual recognition, a light receiving unit 11 such as a light receiving sensor or a video camera may be installed outside the gas insulating device.

（第３の実施形態）
第３の実施形態に係るガス絶縁機器について図４を参照しつつ詳細に説明する。図４は、第３の実施形態に係るガス絶縁機器の高電圧導体１及び密閉容器２を示す模式図である。図４の（ａ）は、高電圧導体１及び密閉容器２を側面から見た断面図、（ｂ）は、高電圧導体１及び密閉容器２を輪切りにした断面図である。 (Third embodiment)
The gas insulation apparatus according to the third embodiment will be described in detail with reference to FIG. FIG. 4 is a schematic diagram showing a high-voltage conductor 1 and a sealed container 2 of a gas insulating device according to the third embodiment. 4A is a cross-sectional view of the high-voltage conductor 1 and the sealed container 2 as viewed from the side, and FIG. 4B is a cross-sectional view of the high-voltage conductor 1 and the sealed container 2 cut in a circle.

第３の実施形態に係るガス絶縁機器は、密閉容器２の外面にも内面にも応力発光材料９を塗布している。その塗布範囲は、それぞれ、密閉容器２の両端の下部であって、密閉容器２の周方向において、内周約３分の１にわたり、密閉容器２の長さ方向において、絶縁スペーサ３の位置から密閉容器２の径と同等の長さまで及ぶ。   In the gas insulating device according to the third embodiment, the stress-stimulated luminescent material 9 is applied to both the outer surface and the inner surface of the sealed container 2. The application range is the lower part of both ends of the sealed container 2, and extends from the position of the insulating spacer 3 in the length direction of the sealed container 2 over about one third of the inner circumference in the circumferential direction of the sealed container 2. It extends to a length equivalent to the diameter of the sealed container 2.

このガス絶縁機器では、運転電圧による異物挙動に対しては密閉容器２の監視窓１０から監視でき、異物挙動が激しい場合は、密閉容器２の外側からも発光を観測することができる。従って、高度に異物を管理した状態でガス絶縁機器を製造することができ、高品質のガス絶縁機器を提供することができる。   In this gas insulating device, the foreign substance behavior due to the operating voltage can be monitored from the monitoring window 10 of the sealed container 2, and when the foreign substance behavior is severe, the light emission can also be observed from the outside of the sealed container 2. Therefore, a gas insulation apparatus can be manufactured in the state which managed foreign substances highly, and a high quality gas insulation apparatus can be provided.

（第４の実施形態）
第４の実施形態に係るガス絶縁機器について図５を参照しつつ詳細に説明する。図５は、第４の実施形態に係るガス絶縁機器の高電圧導体１及び密閉容器２を側面から見た断面図である。 (Fourth embodiment)
The gas insulation apparatus according to the fourth embodiment will be described in detail with reference to FIG. FIG. 5: is sectional drawing which looked at the high voltage conductor 1 and the airtight container 2 of the gas insulation apparatus which concern on 4th Embodiment from the side surface.

図５に示すように、応力発光材料９は、絶縁スペーサ３等の絶縁物の表面又は表層に塗布又は充填することもできる。密閉容器２の内面又は外面に応力発光材料９を塗布した場合と同様に、絶縁スペーサ３等の絶縁物に異物が衝突した際の発光を捉えることでき、異物の監視可能範囲が拡がり、異物の存在位置の確認が容易となるため、ガス絶縁機器の異常診断や異物除去のための詳細情報を得ることができる。   As shown in FIG. 5, the stress-stimulated luminescent material 9 can be applied or filled on the surface or surface layer of an insulator such as the insulating spacer 3. Similar to the case where the stress-stimulated luminescent material 9 is applied to the inner surface or the outer surface of the sealed container 2, it is possible to capture light emission when a foreign object collides with an insulating material such as the insulating spacer 3. Since the presence position can be easily confirmed, it is possible to obtain detailed information for abnormality diagnosis and foreign matter removal of the gas insulation device.

（他の実施形態）
以上、本明細書においては、本発明に係る複数の実施形態を説明したが、これらの実施形態は例として提示したものであって、発明の範囲を限定することを意図していない。各実施形態の全て又はいずれかを組み合わせたものも発明の範囲に包含される。また、各実施形態は、その他の様々な形態で実施されることが可能であり、発明の範囲を逸脱しない範囲で、種々の省略や置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 (Other embodiments)
As mentioned above, although several embodiment concerning this invention was described in this specification, these embodiment was shown as an example and is not intending limiting the range of invention. A combination of all or any of the embodiments is also included in the scope of the invention. Each embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

例えば、実施形態では、応力発光材料９の塗布範囲を密閉容器２の両端下部の絶縁スペーサ３と隣接する位置、密閉容器２の周方向において、内周約３分の１にわたり、長さ方向において、絶縁スペーサ３の位置から密閉容器２の径と同等の長さとした。この塗布範囲は、特に異物が存在しやすく、電界の高い箇所を重点的に監視するためのものであるが、これに限ることなく、各所に応力発光材料９を塗布することが可能である。   For example, in the embodiment, the application range of the stress-stimulated luminescent material 9 is set at a position adjacent to the insulating spacers 3 at the lower ends of both ends of the sealed container 2, in the circumferential direction of the sealed container 2, in the longitudinal direction over about one third of the inner circumference. The length of the insulating spacer 3 is equal to the diameter of the sealed container 2. This application range is intended to focus particularly on a portion where a foreign substance is likely to exist and a high electric field is applied, but the present invention is not limited to this, and the stress-stimulated luminescent material 9 can be applied to various places.

一例として、密閉容器２の下部の中央付近に応力発光材料９を塗布するようにしてもよい。密閉容器２が長い場合には、両端の他に中央付近にも監視窓１０と受光部１１を設け、中央付近に塗布した応力発光材料９を観測容易にするようにしてもよい。一方で、密閉容器２が短く、一つの監視窓１０で密閉容器２の全領域を観測できる場合には、全ての応力発光材料９の全領域が見渡せる１箇所に監視窓１０を設置するようにしてもよい。   As an example, the stress-stimulated luminescent material 9 may be applied near the center of the lower part of the sealed container 2. When the sealed container 2 is long, a monitoring window 10 and a light receiving unit 11 may be provided near the center in addition to both ends so that the stress-stimulated luminescent material 9 applied near the center can be easily observed. On the other hand, when the sealed container 2 is short and the entire area of the sealed container 2 can be observed with one monitoring window 10, the monitoring window 10 is installed at one place where the entire area of all the stress-stimulated luminescent materials 9 can be seen. May be.

１ 高電圧導体
２ 密閉容器
３ 絶縁スペーサ
４ 絶縁ガス
７ 接触子
８ コンタクト
９ 応力発光材料
９ａ 応力発光素子
９ｂ 透明性絶縁樹脂
１０ 監視窓
１１ 受光部
２１ 遮断器
２２ 母線
２３ 断路器
２４ 接地開閉器
２５ 電圧変成器
２６ ケーブルヘッド
２７ 制御盤 DESCRIPTION OF SYMBOLS 1 High voltage conductor 2 Airtight container 3 Insulating spacer 4 Insulating gas 7 Contact 8 Contact 9 Stress light emitting material 9a Stress light emitting element 9b Transparent insulating resin 10 Monitoring window 11 Light-receiving part 21 Breaker 22 Bus 23 Disconnector 24 Grounding switch 25 Voltage transformer 26 Cable head 27 Control panel

Claims (9)

絶縁ガスが封入された密閉容器と、
前記密閉容器内に挿通され、電力を運送するための高電圧が印加された高電圧導体と、
前記高電圧導体を前記密閉容器内に支持する絶縁スペーサと、
前記密閉容器の内面に塗布され、異物の衝突によって発光する応力発光材料と、
前記発光を観測するための観測手段と、
を備えること、
を特徴とするガス絶縁機器。 A sealed container filled with insulating gas;
A high-voltage conductor inserted into the sealed container and applied with a high voltage for carrying power; and
An insulating spacer for supporting the high-voltage conductor in the sealed container;
A stress-stimulated luminescent material that is applied to the inner surface of the sealed container and emits light when a foreign object collides;
An observation means for observing the emission;
Providing
Gas insulation equipment characterized by. 絶縁ガスが封入された密閉容器と、
前記密閉容器内に挿通され、電力を運送するための高電圧が印加された高電圧導体と、
前記高電圧導体を前記密閉容器内に支持する絶縁スペーサと、
前記絶縁スペーサの表面に塗布又は表層に充填され、異物の衝突によって発光する応力発光材料と、
前記発光を観測するための観測手段と、
を備えること、
を特徴とするガス絶縁機器。 A sealed container filled with insulating gas;
A high-voltage conductor inserted into the sealed container and applied with a high voltage for carrying power; and
An insulating spacer for supporting the high-voltage conductor in the sealed container;
A stress-stimulated luminescent material that is applied to the surface of the insulating spacer or filled in a surface layer and emits light by collision of foreign matter;
An observation means for observing the emission;
Providing
Gas insulation equipment characterized by. 前記監視手段は、密閉容器に設けられた監視窓であること、
を特徴とする請求項１又は２記載のガス絶縁機器。 The monitoring means is a monitoring window provided in a sealed container;
The gas insulation apparatus according to claim 1 or 2, characterized in that. 前記監視手段は、
前記監視窓越しに前記応力発光材料の発光を観測する受光手段を含むこと、
を特徴とする請求項３記載のガス絶縁機器。 The monitoring means includes
Including light receiving means for observing light emission of the stress luminescent material through the monitoring window;
The gas insulation apparatus according to claim 3. 絶縁ガスが封入された密閉容器と、
前記密閉容器内に挿通され、電力を運送するための高電圧が印加された高電圧導体と、
前記高電圧導体を前記密閉容器内に支持する絶縁スペーサと、
前記密閉容器の外面に塗布され、異物の衝突によって発光する応力発光材料と、
を備えること、
を特徴とするガス絶縁機器。 A sealed container filled with insulating gas;
A high-voltage conductor inserted into the sealed container and applied with a high voltage for carrying power; and
An insulating spacer for supporting the high-voltage conductor in the sealed container;
A stress-stimulated luminescent material that is applied to the outer surface of the sealed container and emits light when a foreign object collides;
Providing
Gas insulation equipment characterized by. 前記応力発光材料は、
前記密閉容器の下部に周の３分の１にわたって塗布されること、
を特徴とする請求項１又は５記載のガス絶縁機器。 The stress-stimulated luminescent material is
Applied to the lower part of the sealed container over one third of the circumference;
The gas insulation apparatus according to claim 1 or 5, characterized in that. 前記応力発光材料は、前記絶縁スペーサに隣接する前記密閉容器の両端に塗布されること、
を特徴とする請求項１、５、又は６に記載のガス絶縁機器。 The stress-stimulated luminescent material is applied to both ends of the sealed container adjacent to the insulating spacer;
The gas insulation apparatus according to claim 1, 5, or 6. 前記応力発光材料は、前記密閉容器の軸方向に、前記絶縁スペーサから前記密閉容器の径と同等の長さにわたって塗布されること、
を特徴とする請求項１、５乃至７の何れかに記載のガス絶縁機器。 The stress-stimulated luminescent material is applied in the axial direction of the sealed container from the insulating spacer over a length equivalent to the diameter of the sealed container;
The gas insulation apparatus according to claim 1, wherein 前記応力発光材料は、数μｍ以下の粒径を有する応力発光素子を透明性絶縁樹脂に充填して形成されること、
を特徴とする請求項１乃至８の何れかに記載のガス絶縁機器。 The stress-stimulated luminescent material is formed by filling a stress-stimulated light emitting element having a particle size of several μm or less into a transparent insulating resin,
A gas insulating device according to any one of claims 1 to 8, wherein
JP2011231681A 2011-10-21 2011-10-21 Gas insulated apparatus Pending JP2013090534A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021125886A (en) * 2020-01-31 2021-08-30 株式会社東芝 Gas insulated switching device
WO2022230109A1 (en) * 2021-04-28 2022-11-03 三菱電機株式会社 Circuit breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10201059A (en) * 1996-12-27 1998-07-31 Mitsubishi Electric Corp Gas-insulated electric apparatus
JP2001215157A (en) * 2000-02-02 2001-08-10 Natl Inst Of Advanced Industrial Science & Technology Meti Method and system for measuring stress or stress distribution with use of stress emission material
JP2003287466A (en) * 2002-03-27 2003-10-10 National Institute Of Advanced Industrial & Technology Method for long-term and stable emission of stress light emitting material and stress light emitting device for the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10201059A (en) * 1996-12-27 1998-07-31 Mitsubishi Electric Corp Gas-insulated electric apparatus
JP2001215157A (en) * 2000-02-02 2001-08-10 Natl Inst Of Advanced Industrial Science & Technology Meti Method and system for measuring stress or stress distribution with use of stress emission material
JP2003287466A (en) * 2002-03-27 2003-10-10 National Institute Of Advanced Industrial & Technology Method for long-term and stable emission of stress light emitting material and stress light emitting device for the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021125886A (en) * 2020-01-31 2021-08-30 株式会社東芝 Gas insulated switching device
WO2022230109A1 (en) * 2021-04-28 2022-11-03 三菱電機株式会社 Circuit breaker

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