JPH0613309U - Gas insulated switchgear - Google Patents
Gas insulated switchgearInfo
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- JPH0613309U JPH0613309U JP4993092U JP4993092U JPH0613309U JP H0613309 U JPH0613309 U JP H0613309U JP 4993092 U JP4993092 U JP 4993092U JP 4993092 U JP4993092 U JP 4993092U JP H0613309 U JPH0613309 U JP H0613309U
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- pressure
- tank
- gas
- pressure release
- valve
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Abstract
(57)【要約】
【目的】 本考案は大気圧以下の定格圧力の絶縁ガスを
封入したガス絶縁開閉装置におけるタンクおよび内部機
器の耐圧力設計を容易にし、且つタンク内でのアーク事
故時の有害ガスをそのまま外部に排出しないようにした
ガス絶縁開閉装置の提供を目的とする。
【構成】 タンク１の上部に放圧弁４と、この放圧弁４
を覆って放圧バッグ５を設け、更に放圧バッグ５にはバ
ルブ９を設け、放圧バッグ５内に放出された分解ガスを
このバルブ９からホース１０を介して導出し、中和装置
８で中和して外部に排出する。
(57) [Abstract] [Purpose] The present invention facilitates pressure resistant design of a tank and internal equipment in a gas insulated switchgear in which an insulating gas having a rated pressure of atmospheric pressure or less is filled, and prevents the occurrence of an arc accident in the tank. It is an object of the present invention to provide a gas-insulated switchgear that does not discharge harmful gas as it is. [Structure] A pressure relief valve 4 is provided above the tank 1, and the pressure relief valve 4 is provided.
Is provided with a pressure release bag 5, a valve 9 is further provided on the pressure release bag 5, and the decomposed gas released into the pressure release bag 5 is led out from the valve 9 via a hose 10 to provide a neutralization device 8 Neutralize with and discharge to the outside.
Description
【０００１】[0001]
本考案はＳＦ6等の絶縁ガスを使用した絶縁開閉装置に関し、特に、封入絶縁 ガスの定格圧力が大気圧（１．０気圧Ｇ）以下のガス絶縁開閉装置に関する。The present invention relates to an insulating switchgear using an insulating gas such as SF 6 , and more particularly to a gas insulating switchgear in which the rated pressure of the enclosed insulating gas is atmospheric pressure (1.0 atm G) or less.
【０００２】[0002]
最近の受変電設備は、建設用地の狭隘、設備の無人化、保守，点検の省力化、 安全性の向上から小形化、高信頼性、保守，点検の簡素化等が求められている。 この要請に呼応して２４／３６ＫＶクラスのキューピクル形ガス絶縁開閉装置が 開発されている。 Recent power receiving and transforming facilities are required to have a narrow construction site, unmanned facilities, labor saving for maintenance and inspection, downsizing due to improved safety, high reliability, simplified maintenance and inspection. In response to this request, a 24 / 36KV class cupicle type gas insulated switchgear has been developed.
【０００３】 このガス絶縁開閉装置においては、内部で閃絡事故（アーク事故）が発生する 恐れがあるため、その対策を考慮しなければならない。ＩＥＣ（国際電気標準会 議）規格では、事故時の内圧上昇を外部に放圧する放圧弁の設置を認めているが 、我が国においては、放圧弁の取付に関しての明確な規定がない。In this gas-insulated switchgear, a flashover accident (arc accident) may occur inside, so countermeasures must be taken into consideration. The IEC (International Electrotechnical Commission) standard permits the installation of a pressure relief valve that releases the internal pressure rise at the time of an accident to the outside, but in Japan, there is no clear provision regarding the attachment of the pressure relief valve.
【０００４】 この事故時の内圧上昇に対する対策としては、一般的に考えられることは絶縁 ガスを封入した容器を圧力タンクとして、その強度を高めることである。As a countermeasure against the rise in internal pressure at the time of this accident, generally considered is to increase the strength of a container filled with insulating gas as a pressure tank.
【０００５】 特に、ＳＦ6絶縁ガスは定常状態では非常に安定した不活性ガスであるが、こ れがアーク事故等によりアークの高温にさらされると、下記の有害な分解ガスを 発生する。In particular, the SF 6 insulating gas is a very stable inert gas in the steady state, but when it is exposed to the high temperature of the arc due to an arc accident or the like, the following harmful decomposition gas is generated.
【０００６】 ＳＦ6＋Ｃｕ→ＳＦ4＋ＣｕＦ2 ＳＦ4＋Ｈ2Ｏ→ＳＯＦ2＋２ＨＦ ＳＯＦ2＋Ｈ2Ｏ→ＳＯ2＋２ＨＦ このため、一般的には、この有害ガスを外部に放出させないように容器を圧力タ ンクとして強度を持たせることが常識的に考えられる。SF 6 + Cu → SF 4 + CuF 2 SF 4 + H 2 O → SOF 2 + 2HF SOF 2 + H 2 O → SO 2 + 2HF For this reason, in general, the container is pressured so as not to release this harmful gas to the outside. It is common sense to give strength as a tank.
【０００７】[0007]
ガス絶縁開閉装置において６６ＫＶクラス以上の場合は、定格圧力がＳＩ単位 で０．１９６〜０．２９４ＭＰａ（２〜３ｋｇｆ／ｃｍ2）と高いため、容器は 必然的に圧力容器となり、タンク容積も高電圧のため容積が大きくなっている。When the gas insulated switchgear is 66 KV class or higher, the rated pressure is as high as 0.196 to 0.294 MPa ( 2 to 3 kgf / cm 2 ) in SI unit, so the container inevitably becomes a pressure container and the tank volume is also high. The volume is large because of the voltage.
【０００８】 内部閃絡事故時の内圧上昇は一般的に下記の式によることが知られている。It is generally known that the internal pressure rise at the time of an internal flashover accident is based on the following equation.
【０００９】 ΔＰ＝η（Ｖａｒｃ・Ｉ・ｔ）／Ｖ 但し、ΔＰは圧力、ηは定数、Ｖはタンク容積、Ｖａｒｃはアーク電圧、Ｉはア ーク電流実行値、ｔは電流継続時間を示す。ΔP = η (Varc · I · t) / V where ΔP is pressure, η is a constant, V is tank volume, Varc is arc voltage, I is arc current execution value, and t is current continuation time. Show.
【００１０】 〔出典、電気学会技術報告（２部）第１６３号、３．５式〕 この式により６６ＫＶクラス以上のガス絶縁開閉装置では圧力ΔＰは０．１９ ６〜０．３９２ＭＰａ（２〜４ｋｇｆ／ｃｍ2）の範囲であり、円筒形を主体と した圧力容器のため耐圧力的に問題がない。[Source: Technical Report of the Institute of Electrical Engineers of Japan (Part 2) No. 163, 3.5 Formula] According to this formula, the pressure ΔP is 0.196 to 0.392 MPa (2 to 4 kgf in a gas insulated switchgear of 66 KV class or higher). / Cm 2 ), and there is no problem in pressure resistance because it is a pressure vessel mainly composed of a cylindrical shape.
【００１１】 しかしながら、現在では２２／３６ＫＶクラスのガス絶縁化が進み、経済的な 面で定格圧力も大気圧近傍の０．０４９ＭＰａ（０．５ｋｇｆ／ｃｍ2）程度の キューピクルタイプ形が主流となってきている。このキューピクルタイプのガス 絶縁開閉装置では、定格圧力が低く、角形タンクであること、更に２４／３６Ｋ Ｖクラスと比較的容量が小さいので、タンクの容積も小さいため、内部にアーク による閃絡事故が発生したときの圧力上昇は０．３９２〜０．５８８ＭＰａ（４ 〜６ｋｇｆ／ｃｍ2）程度に上昇し、この圧力に対して角形タンクでは耐圧的に 十分な強度を得ることは難しい。However, nowadays, gas insulation of 22/36 KV class is progressing, and economically, the cupicle type type whose rated pressure is about 0.049 MPa (0.5 kgf / cm 2 ) near atmospheric pressure is the mainstream. Is coming. This cupicle type gas insulated switchgear has a low rated pressure, is a rectangular tank, and has a relatively small capacity of 24/36 KV class, so the tank volume is also small, so there is a flashover accident due to an arc inside. When the pressure is generated, the pressure rises to about 0.392 to 0.588 MPa (4 to 6 kgf / cm 2 ), and it is difficult for the rectangular tank to obtain sufficient strength in pressure resistance against this pressure.
【００１２】 そこで、本考案の目的は、放圧弁を設けて角形タンクを経済的な圧力設計を可 能とし、また、アーク事故時の有毒ガスを直接放出しない安全性の高いガス絶縁 開閉装置を提供するにある。Therefore, an object of the present invention is to provide a gas-insulated switchgear with a high safety that can provide an economical pressure design for a rectangular tank by providing a pressure relief valve and that does not directly release toxic gas during an arc accident. To provide.
【００１３】[0013]
本考案において上記の課題を解決するための手段は、タンク内に機器室，母線 室を有し、且つ大気圧以下の絶縁ガスを封入して成るガス絶縁開閉装置において 、 前記タンクの上部に放圧弁を設け、該放圧弁を覆って放圧バッグを設けるとと もに、前記タンク内部でアーク事故が発生して内部圧力が上昇して放圧弁が動作 したときこの内部圧力を放圧バッグ内に放圧させ、且つこの放圧バッグ内のガス を中和装置で中和した後外部に排出するようにする。 Means for solving the above-mentioned problems in the present invention is a gas-insulated switchgear comprising an equipment room and a bus room in a tank, and enclosing an insulating gas at an atmospheric pressure or less. A pressure valve is provided, a pressure release bag is provided to cover the pressure release valve, and when the arc pressure occurs inside the tank and the internal pressure rises and the pressure release valve operates, this internal pressure is stored in the pressure release bag. The gas in the pressure release bag is neutralized by the neutralizer and then discharged to the outside.
【００１４】 また、列盤構成のガス絶縁開閉装置においては、列盤を構成するユニットのガ ス絶縁盤の各機器室と、互いに連通した母線室の１箇所に放圧弁を設け、これら 機器室の放圧弁のみ、または母線室の放圧弁も含めて共通の放圧タンクで覆い、 この放圧タンクに放圧弁と該放圧弁を覆う放圧バッグを設ける。Further, in the gas-insulated switchgear having a row panel structure, a pressure relief valve is provided at each of the equipment chambers of the gas insulating boards of the units constituting the row panel and the bus room that communicates with each other. Only the pressure relief valve or the pressure relief valve in the bus room is covered with a common pressure relief tank, and this pressure relief tank is provided with a pressure relief valve and a pressure relief bag that covers the pressure relief valve.
【００１５】 更に、これら放圧タンクおよび放圧バッグにバルブを設け、放圧タンク又は放 圧バルブ内に放圧された分解ガスをこのバルブから取り出して中和装置で中和し て外部に排出するようにする。Further, a valve is provided in the pressure release tank and the pressure release bag, and the decomposed gas released in the pressure release tank or the pressure release valve is taken out from the valve, neutralized by a neutralization device, and discharged to the outside. To do so.
【００１６】[0016]
本考案は以上のように構成されているので、タンク内でアーク事故が発生し、 内圧が設定圧力以上に上昇すると放圧弁が動作して放圧バッグ内に放出し、タン クの内圧を下げる。従ってタンクの耐圧力強度の設計は、この放圧弁の動作圧力 程度か若それを上回る程度の強度で足り、設計も簡単となり、またタンクおよび タンク内の機器に余分な耐圧力強度を持たせる必要がないので、経済的な此の種 装置が得られる。また、このときアークによって発生する分解ガスは一旦放圧バ ッグ内に放圧され、外部に排出されないので、安全であり、且つ、この放圧バッ グ内の分解ガスは、バッグを介して中和装置で有害ガスを中和した後、外部に排 出することが可能となるので、公害対策に好適なものとなる。更に列盤構成の場 合には共通の放圧タンクで１次放圧空間およびこの放圧タンクに設けた放圧バッ グで２次放出空間を形成するようにしたので、一変電所のすべてのガス絶縁開閉 装置が共通化され、総合的な放圧装置が得られ、放圧ガス管理の面および公害の 面からも優れたものとなる。 Since the present invention is configured as described above, when an arc accident occurs in the tank and the internal pressure rises above the set pressure, the pressure relief valve operates and discharges it into the pressure relief bag, lowering the internal pressure of the tank. . Therefore, it is sufficient to design the tank withstand pressure strength at a pressure that is about the operating pressure of this relief valve or slightly above it, and the design is simple, and it is necessary to provide the tank and the equipment inside the tank with extra pressure resistance. This makes it possible to obtain an economical device of this kind. Further, at this time, the decomposition gas generated by the arc is once released into the pressure release bag and is not discharged to the outside, so it is safe, and the decomposition gas inside this pressure release bag is passed through the bag. After the harmful gas is neutralized by the neutralizer, it can be discharged to the outside, which is suitable for pollution control. Furthermore, in the case of a row board configuration, the primary pressure release space is formed by the common pressure release tank and the secondary release space is formed by the pressure release bag provided in this pressure release tank, so all of the substations are The gas-insulated switchgear of the above is used in common, and a comprehensive pressure release device is obtained, which is excellent in terms of control of released gas and pollution.
【００１７】[0017]
以下、本考案を図面に示す実施例に基づいて説明する。図１は本考案の一実施 例のガス絶縁開閉装置の模式図で、１は角形のタンクで、内部は機器室２と母線 質３を有し、各室に定格圧力が大気圧以下の絶縁ガス（ＳＦ6等）が封入されて いる。４は放圧弁でタンク１の上部に設けられ、定格圧力の２〜３倍程度で動作 して放圧するように設計されている。５は放圧バッグで、放圧弁４を覆いタンク １の上部に設けられて、常時は折畳まれ、放圧により脹むようになっている。こ の放圧バッグ５は例えば耐火性の優れたアルミ蒸着シート等で作られ、強度を増 すためガラスクロスを入れられている。そして、放圧バッグ５の容量は、タンク １内でアーク事故が発生したときの圧力上昇を吸収できる容積を持たせる（一般 的には、タンク容積の３〜５倍程度）。６は放圧バッグ５を覆ったカバーで、容 易に外れるようにかぶせられ、放圧バッグ５の保護と、外観を損なわないように している。７はケーブルを示している。Hereinafter, the present invention will be described based on an embodiment shown in the drawings. FIG. 1 is a schematic view of a gas-insulated switchgear according to an embodiment of the present invention, in which 1 is a rectangular tank, and inside has an equipment chamber 2 and a busbar 3, and each chamber has an rated pressure below atmospheric pressure. Gas (SF 6 etc.) is enclosed. Reference numeral 4 denotes a pressure release valve which is provided above the tank 1 and is designed to operate and release pressure at about 2 to 3 times the rated pressure. Reference numeral 5 denotes a pressure release bag, which is provided above the pressure release valve 4 and is provided above the tank 1, is normally folded, and is inflated by pressure release. The pressure-releasing bag 5 is made of, for example, an aluminum vapor-deposited sheet having excellent fire resistance, and is filled with a glass cloth to increase its strength. The pressure releasing bag 5 has a capacity capable of absorbing a pressure increase when an arc accident occurs in the tank 1 (generally, about 3 to 5 times the tank capacity). Reference numeral 6 is a cover that covers the pressure release bag 5 and is covered so as to be easily detached so as to protect the pressure release bag 5 and not to impair the appearance. Reference numeral 7 indicates a cable.
【００１８】 図２は図１の動作説明図で、タンク１内でアーク事故が発生して内部圧力が定 格圧力の２〜３倍程度にまで上昇すると、放圧弁が動作して放圧バッグ５内に放 圧される。放圧されると、放圧バッグ５は脹み内部容積が拡大されその分タンク １内の圧力は低下し、タンク１にはそれ以上の内圧は加わらない。従ってタンク １の強度はこの放圧弁４の放圧圧力と同じかやや高い定格圧の２〜４倍程度の強 度を有すれば足りることになる。FIG. 2 is a diagram for explaining the operation of FIG. 1. When an arc accident occurs in the tank 1 and the internal pressure rises to about 2 to 3 times the rated pressure, the pressure release valve operates and the pressure release bag. 5 is released. When the pressure is released, the pressure releasing bag 5 expands and the internal volume is expanded, and the pressure in the tank 1 is reduced by that amount, and no further internal pressure is applied to the tank 1. Therefore, it is sufficient that the strength of the tank 1 is about the same as the pressure of the pressure relief valve 4 or slightly higher than the rated pressure by 2 to 4 times.
【００１９】 図２において８は中和装置、９は放圧バッグ５に設けられたバルブで、このバ ルブ９と中和装置８とはホース１０で連結されている。そして放圧バッグ５内に 放出された分解ガスが溜まったときは、このバルブ９を操作して中和装置８内の 水、ゼオライト等で毒性を中和させ、排気口１１から排気させる。In FIG. 2, 8 is a neutralizer, 9 is a valve provided in the pressure release bag 5, and the valve 9 and the neutralizer 8 are connected by a hose 10. When the released decomposition gas is accumulated in the pressure release bag 5, the valve 9 is operated to neutralize the toxicity with water, zeolite or the like in the neutralization device 8 and exhausted from the exhaust port 11.
【００２０】 図３は本考案の第２の実施例のキュービクル形ガス絶縁開閉装置で、ユニット ガス絶縁盤１Ａ，１Ｂ，１Ｃ，１Ｄ，１Ｅの５面の列盤構成を示している。図３ において、図１および図２と同じ機能を有する部分には、これら図１，２と同じ 符号を付して説明を省略する。FIG. 3 shows a cubicle-type gas-insulated switchgear according to a second embodiment of the present invention, which shows a five-side row panel structure of unit gas insulating boards 1A, 1B, 1C, 1D and 1E. In FIG. 3, parts having the same functions as those in FIGS. 1 and 2 are designated by the same reference numerals as those in FIGS.
【００２１】 しかして本実施例は、列盤構成のユニットガス絶縁盤１Ａ〜１Ｅには図１と同 様に放圧弁４Ａ〜４Ｅを設けるが、放圧バッグは設けない構成とし、ユニットガ ス絶縁盤１Ａ〜１Ｅの全体の上部と一側部を共通の放圧タンク２０で覆い、この 放圧タンク２０に共用の放圧弁２４を設けて、該放圧弁２４を覆った共用の放圧 バッグ２５を設けたものである。このように構成すると放圧タンク２０内に１次 放圧空間が形成され、更に放圧バッグ２５で２次放圧空間が形成されることにな る。２１は上記の１次放圧空間内で母線室３に設けられた放圧弁で、図３におい てはユニットガス絶縁盤１Ｅに設けられているが、各ユニットガス絶縁盤１Ａ〜 １Ｅの母線室は夫々連通されているので、１次放圧空間内であれば、いずれのユ ニット盤に設けてもよい。In this embodiment, however, the unit gas insulating boards 1A to 1E having the row board structure are provided with the pressure release valves 4A to 4E as in FIG. 1, but the pressure release bag is not provided. A common pressure release tank 20 covers the entire top and one side of the boards 1A to 1E, and a common pressure release valve 24 is provided in the pressure release tank 20. A common pressure release bag 25 covering the pressure release valve 24. Is provided. With this structure, the primary pressure release space is formed in the pressure release tank 20, and the secondary pressure release space is further formed by the pressure release bag 25. Reference numeral 21 denotes a pressure release valve provided in the busbar chamber 3 in the primary pressure release space, which is provided in the unit gas insulating board 1E in FIG. 3, but the busbar chamber of each unit gas insulating board 1A to 1E. Since they are communicated with each other, they may be provided on any unit board within the primary pressure release space.
【００２２】 図４は本実施例の動作のフローチャートで、このフローチャートに基づいて動 作を説明する。FIG. 4 is a flowchart of the operation of this embodiment, and the operation will be described based on this flowchart.
【００２３】 今、ユニットガス絶縁盤１Ａ〜１Ｅのいずれかの内部（機器室又は母線室）に アーク事故が発生し、内部圧が上昇しその上昇圧力ΔＰが定格圧力の２倍〜３倍 程度の耐圧力値Ｐ以上に上昇すると、そのアーク事故のユニットガス絶縁盤の放 圧弁が動作して放圧タンク２０内の１次放圧空間に放圧される。そして、１次空 間内に放出された上昇圧力ΔＰが耐圧力設定値Ｐより高くなったときは共用の放 圧弁２４が動作して共用のバッグ２５内の２次放圧空間に放出される。Now, an arc accident occurs inside any of the unit gas insulating boards 1A to 1E (equipment room or bus room), the internal pressure rises, and the rising pressure ΔP is about 2 to 3 times the rated pressure. When the pressure resistance value P exceeds the pressure resistance value P, the pressure release valve of the unit gas insulating board in the arc accident operates to release the pressure in the primary pressure release space in the pressure release tank 20. When the rising pressure ΔP released in the primary space becomes higher than the pressure resistant set value P, the shared pressure release valve 24 operates and is released to the secondary pressure release space in the shared bag 25. .
【００２４】 アーク事故発生のユニットガス絶縁盤の放圧弁が動作したとき、放圧タンク２ ０内の圧力が耐圧力設定値より低いときは、タンク１自身の耐圧力内であるから タンクの破損の危険はない。このとき放圧バッグ内に放出された有害ガスはバル ブ９を開いて中和装置８で中和して排出口１１から排出される。When the pressure release valve of the unit gas insulating board in which an arc accident occurs operates and the pressure in the pressure release tank 20 is lower than the pressure resistant set value, it is within the pressure resistant capacity of the tank 1 itself and the tank is damaged. There is no danger of. At this time, the harmful gas discharged into the pressure release bag is opened by opening the valve 9, neutralized by the neutralization device 8, and discharged from the discharge port 11.
【００２５】 本実施例においては、機器室２および母線室３の耐圧力は、定格圧力の２倍程 度に設計し、放圧弁４Ａ〜４Ｅ，２１，２４の圧力設定は、定格圧力の２倍程度 、但し逆圧力に対しては４倍以上とし、また、放圧タンク２０の容積は、各タン ク１Ａ〜１Ｅのタンク容積の２〜５倍程度で、耐圧力は各タンク１Ａ〜１Ｅと同 一とする。In this embodiment, the pressure resistance of the equipment room 2 and the bus room 3 is designed to be about twice the rated pressure, and the pressure setting of the pressure relief valves 4A to 4E, 21, 24 is set to 2 times the rated pressure. However, the pressure of the pressure relief tank 20 is about 2 to 5 times the tank volume of each tank 1A to 1E, and the withstand pressure is each tank 1A to 1E. Same as
【００２６】 図５は第３の実施例の説明図で、図３と異なる点は共通の放圧タンク２０はタ ンク１Ａ〜１Ｅの上面のみ覆い、母線室３に設けた放圧弁２１の回りを他の放圧 バッグ３５で覆った点のみ相違する。このようにすることにより、タンク１Ｅの 側面に沿って設けられた放圧タンクと母線室との連絡用のタンクが不用となる。FIG. 5 is an explanatory view of the third embodiment, and is different from FIG. 3 in that the common pressure release tank 20 covers only the upper surfaces of the tanks 1A to 1E and the pressure release valve 21 provided in the busbar chamber 3 is surrounded. The only difference is that is covered with another pressure release bag 35. By doing so, the tank for communication between the pressure release tank and the bus room provided along the side surface of the tank 1E becomes unnecessary.
【００２７】[0027]
本考案は以上のようにタンクに放圧弁および放圧バッグを設けたので、タンク の耐圧力が定格圧力の２倍程度で足りるので、圧力設計が容易となり、且つタン クおよびタンク内の機器の耐圧強度も強くすることができ経済的となる。また、 アーク事故時に発生する有害ガスを直接放出せず、放出バッグ内に封入するので 公害防止となり、且つ、放出バッグ内のガスを中和装置に導いて毒性を無くして から外部に放出するので極めて安全である。 In the present invention, since the pressure relief valve and the pressure relief bag are provided in the tank as described above, the pressure resistance of the tank is about twice the rated pressure, which facilitates the pressure design and facilitates the tank and the equipment in the tank. The pressure resistance can be increased, which is economical. In addition, the harmful gas generated in the case of an arc accident is not directly emitted, but is enclosed in the emission bag to prevent pollution, and the gas in the emission bag is guided to the neutralization device to eliminate toxicity and then released to the outside. It is extremely safe.
【００２８】 また、第２，第３の実施例においては、一変電所のすべてのキュービクルタイ プのガス絶縁開閉装置を共通化した第１および第２の放圧空間を設けて処理する ので、経済的であり、特に第２の実施例においては、母線室，機器室を含めた総 合的な放圧装置となり、有毒ガスの処理がより簡単となる等の効果を奏する。Further, in the second and third embodiments, since the gas insulated switchgear of all the cubicle types of one substation is shared, the first and second pressure release spaces are provided for processing. It is economical, and particularly in the second embodiment, it is an integrated pressure release device including the bus room and the equipment room, and has the effect of simplifying the treatment of toxic gas.
【図１】本考案の一実施例の模式図FIG. 1 is a schematic diagram of an embodiment of the present invention.
【図２】本考案の動作説明図FIG. 2 is an operation explanatory diagram of the present invention.
【図３】本考案の第２実施例の模式図FIG. 3 is a schematic diagram of a second embodiment of the present invention.
【図４】本考案の動作説明のフローチャートFIG. 4 is a flowchart for explaining the operation of the present invention.
【図５】本考案の第３の実施例の模式図FIG. 5 is a schematic diagram of a third embodiment of the present invention.
１，１Ａ〜１Ｅ…タンク ２…機器室 ３…母線室 ４，４Ａ〜４Ｅ，２１，２４…放圧弁 ５，２５，３５…放圧バッグ ６…カバー ７…ケーブル ８…中和装置 ９…バルブ １０…ホース １１…排出口 ２０…放圧タンク 1, 1A to 1E ... Tank 2 ... Equipment room 3 ... Bus room 4, 4A-4E, 21, 24 ... Pressure release valve 5, 25, 35 ... Pressure release bag 6 ... Cover 7 ... Cable 8 ... Neutralization device 9 ... Valve 10 ... Hose 11 ... Discharge port 20 ... Pressure release tank
Claims (4)
大気圧以下の絶縁ガスを封入して成るガス絶縁開閉装置
において、 前記タンクの上部に放圧弁を設け、該放圧弁を覆って放
圧バッグを設けるとともに、前記タンク内部でアーク事
故が発生して内部圧力が上昇して放圧弁が動作したとき
この内部圧力を放圧バッグ内に放圧させ、且つこの放圧
バッグ内のガスを中和装置で中和した後に外部に排出す
るようにしたことを特徴とするガス絶縁開閉装置。1. A gas-insulated switchgear comprising an equipment room and a bus room in a tank and enclosing an insulating gas at an atmospheric pressure or lower in the tank, wherein a pressure release valve is provided above the tank and the pressure release valve is covered. A pressure release bag is provided, and when an arc accident occurs inside the tank and the internal pressure rises and the pressure release valve operates, this internal pressure is released into the pressure release bag, and A gas-insulated switchgear characterized in that the gas is neutralized by a neutralizer and then discharged to the outside.
各室に大気圧以下の絶縁ガスを封入して成るガス絶縁開
閉装置において、 前記タンクの機器室に放圧弁を設けてユニットガス絶縁
盤を形成し、このユニットガス絶縁盤を複数盤並設して
列盤構成となし、これら列盤構成のユニットガス絶縁盤
の母線室を連通してその１箇所に放圧弁を設けるととも
に、該放圧弁と前記各機器室の放圧弁とを共通の放圧タ
ンクで覆い、この放圧タンクに共用の放圧弁と該放圧弁
を覆う共用の放圧バッグとを設けたことを特徴とするガ
ス絶縁開閉装置。2. A gas-insulated switchgear comprising an equipment room and a bus room in a tank, each room being filled with an insulating gas below atmospheric pressure, wherein a unit is provided by providing a pressure release valve in the equipment room of the tank. A gas insulation board is formed, and a plurality of these unit gas insulation boards are arranged side by side to form a row board configuration. The busbar chambers of the unit gas insulation boards of these row board configurations are communicated with each other, and a pressure relief valve is provided at that location The pressure release valve and the pressure release valve of each of the equipment chambers are covered with a common pressure release tank, and the pressure release tank is provided with a common pressure release valve and a common pressure release bag that covers the pressure release valve. Gas insulated switchgear.
各室に大気圧以下の絶縁ガスを封入して成るガス絶縁開
閉装置において、 前記タンクの機器室に放圧弁を設けてユニットガス絶縁
盤と形成し、このユニットガス絶縁盤を複数盤並設して
列盤構成となし、これら列盤構成のユニットガス絶縁盤
の母線室を連通して共通化するとともに、前記各機器室
の放圧弁を共通の放圧タンクで覆い、この放圧タンクに
共用の放圧弁と該放圧弁を覆う共用の放圧バッグとを設
け、更に、前記共通化された母線室の１箇所に放圧弁と
該放圧弁を覆う放圧バッグとを設けたことを特徴とする
ガス絶縁開閉装置。3. A gas-insulated switchgear comprising an equipment room and a bus room in a tank, each room being filled with an insulating gas at atmospheric pressure or less, wherein a unit is provided by providing a pressure release valve in the equipment room of the tank. A gas insulation board is formed, and a plurality of these unit gas insulation boards are arranged side by side to form a row board configuration. The busbar chambers of the unit gas insulation boards of these row board configurations are communicated in common and each of the above equipment chambers is connected. The pressure relief valve is covered with a common pressure relief tank, and a common pressure relief valve and a common pressure relief bag for covering the pressure relief valve are provided in the pressure relief tank, and the pressure relief valve is further released to one location in the common bus room. A gas-insulated switchgear comprising a pressure valve and a pressure release bag covering the pressure release valve.
バッグにバルブを設け、これら放圧タンクおよび放圧バ
ッグに放出された放圧ガスをバルブを介して中和装置で
中和した後外部に排出するようにしたことを特徴とする
請求項２又は３記載のガス絶縁開閉装置。4. A valve is provided on the common pressure release tank and the common pressure release bag, and the pressure release gas released to the pressure release tank and the pressure release bag is neutralized by a neutralizer through the valve. The gas-insulated switchgear according to claim 2, wherein the gas-insulated switchgear is configured to be discharged to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4993092U JPH0613309U (en) | 1992-07-16 | 1992-07-16 | Gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4993092U JPH0613309U (en) | 1992-07-16 | 1992-07-16 | Gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0613309U true JPH0613309U (en) | 1994-02-18 |
Family
ID=12844738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4993092U Pending JPH0613309U (en) | 1992-07-16 | 1992-07-16 | Gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018074857A (en) * | 2016-11-02 | 2018-05-10 | 株式会社東芝 | Switchgear |
| CN117117698A (en) * | 2023-08-25 | 2023-11-24 | 大奇智能科技有限公司 | Complete ring main unit for secondary fusion |
-
1992
- 1992-07-16 JP JP4993092U patent/JPH0613309U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018074857A (en) * | 2016-11-02 | 2018-05-10 | 株式会社東芝 | Switchgear |
| CN117117698A (en) * | 2023-08-25 | 2023-11-24 | 大奇智能科技有限公司 | Complete ring main unit for secondary fusion |
| CN117117698B (en) * | 2023-08-25 | 2024-06-04 | 大奇智能科技有限公司 | Complete ring main unit for secondary fusion |
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