JPH027817A - Gas-sealed container for compressed-gas-insulated switchgear - Google Patents
Gas-sealed container for compressed-gas-insulated switchgearInfo
- Publication number
- JPH027817A JPH027817A JP63147103A JP14710388A JPH027817A JP H027817 A JPH027817 A JP H027817A JP 63147103 A JP63147103 A JP 63147103A JP 14710388 A JP14710388 A JP 14710388A JP H027817 A JPH027817 A JP H027817A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- opening
- sealed container
- pressure
- compressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000009172 bursting Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Installation Of Bus-Bars (AREA)
- Safety Valves (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、遮断器等の電気機器を収納して絶縁ガスを
封入するガス絶縁開閉装置のガス封入容器に関し、特に
内部アーク短絡事故等に対する安全装置に係る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a gas-filled container for a gas-insulated switchgear that houses electrical equipment such as a circuit breaker and is filled with insulating gas, and particularly relates to a gas-filled container for a gas-insulated switchgear that houses electrical equipment such as a circuit breaker and is filled with insulating gas. Related to safety equipment.
空気絶縁に基（配電盤では内部アーク短絡事故等に対す
る安全装置として、母線室等に設けた開口部に蝶番で圧
力釈放板を取付け、この釈放板を内圧で開放させて圧力
を逃がす技術が知られている。ガス絶縁開閉装置のガス
封入容器ではガスの気密を必要とするところから、この
ような釈放板は使用できないので、種々の与えられた条
件から容器内の最大上昇圧力を求め、この圧力に耐えう
るような耐圧容器とする。さらには容器内に圧力センサ
と検出リレーを設けて行う安全装置もある。Based on air insulation (in switchboards, as a safety device against internal arc short-circuit accidents, etc., there is a known technology in which a pressure release plate is installed with a hinge in an opening provided in a busbar room, etc., and this release plate is opened by internal pressure to release pressure. Since such a release plate cannot be used in a gas-filled container of a gas-insulated switchgear because it requires gas-tightness, the maximum rising pressure inside the container is determined from various given conditions, and this pressure is The container must be pressure resistant and can withstand this.Furthermore, there are also safety devices that include a pressure sensor and a detection relay inside the container.
前記の従来の技術では、高圧に耐えるようなガス封入容
器を使用すれば、重量と寸法が大きくなり、価格も高（
なるという問題があり、圧力を検出する安全装置を使用
すれば、圧力センサ等の誤動作の恐れがあり安全装置も
高価になるという問題がある。In the conventional technology described above, if a gas-filled container that can withstand high pressure is used, the weight and size will be large, and the price will be high (
If a safety device that detects pressure is used, there is a risk that the pressure sensor or the like may malfunction, and the safety device becomes expensive.
この発明（よ、ガス封入容器の耐圧力を高めることなく
、内部アーク短絡事故等に対し安全なガス封入容器を得
ることにある。The object of this invention is to obtain a gas-filled container that is safe against internal arc short-circuit accidents without increasing the withstand pressure of the gas-filled container.
この発明は、電気機器を収納して絶縁ガスを封入したガ
ス封入容器に開口部を設け、この開口部に薄い板材から
なり所望の圧力で破裂する破裂板を着脱自在にかつ気密
に取付けるものである。In this invention, an opening is provided in a gas-filled container containing electrical equipment and filled with insulating gas, and a rupture disc made of a thin plate material that ruptures at a desired pressure is attached to the opening in a removable and airtight manner. be.
内部アーク短絡事故等によってガス封入容器２の内圧が
高まると、その圧力によって破裂板５が破裂し、ガス封
入容器２そのものの破損を防ぐ。When the internal pressure of the gas-filled container 2 increases due to an internal arc short circuit accident, the rupture disc 5 ruptures due to the pressure, thereby preventing damage to the gas-filled container 2 itself.
破裂した破裂板５は容易に変換でき、気密を害うことが
ない。The ruptured rupture disc 5 can be easily replaced without compromising airtightness.
第１図は実施例の要部を表す部分断面図、第２図は第１
図のものを使用したガス封入容器の全体を表す正面図で
あり、第３図は異る実施例を示す正面図である。Fig. 1 is a partial sectional view showing the main parts of the embodiment, and Fig. 2 is a partial sectional view showing the main parts of the embodiment.
It is a front view showing the whole gas-filled container using the one shown in the figure, and FIG. 3 is a front view showing a different embodiment.
第１図及び第２図において、配電盤１には図示しない遮
断器等の電気機器を収納して絶縁ガスを封入したガス封
入容器２が設置されている。ガス封入容器２にはフラン
ジ３を備えた円形の開口部４が水平方向に開口し、この
開口部４には薄いステンレス鋼等を成形して部分球面と
その周辺の環状フランジからなる破裂板５が取付けられ
ている。In FIGS. 1 and 2, a gas-filled container 2 is installed in a switchboard 1 to house electrical equipment such as a circuit breaker (not shown) and filled with an insulating gas. A circular opening 4 with a flange 3 opens horizontally in the gas-filled container 2, and a rupture plate 5 made of thin stainless steel or the like is molded into the opening 4 and consists of a partially spherical surface and an annular flange around it. is installed.
破裂板５は開口部４のフランジ３に設けた溝にはまる０
リング３ａで気密を確保され、反対側の環状の押え板６
をボルト７で締付けることによって取付けられる。同時
にこのボルト７は間隔管８を介して円板状の防爆板９を
とも締めしている。The rupture disc 5 fits into the groove provided in the flange 3 of the opening 4.
Airtightness is ensured by the ring 3a, and an annular presser plate 6 on the opposite side
It can be attached by tightening the bolt 7. At the same time, this bolt 7 also tightens a disc-shaped explosion-proof plate 9 via a spacer tube 8.
異る実施例を示す第３図においては、ガス封入容器２の
フランジ３には図示しない開口部が上方に開口し、第１
図において間隔管８と防爆板９のない破裂板５がＯリン
グ３ａと押え板６に挟まれて短いボルト７ａで取付けら
れている。In FIG. 3 showing a different embodiment, an opening (not shown) opens upward in the flange 3 of the gas-filled container 2, and a first
In the figure, a rupture plate 5 without a spacing tube 8 and an explosion-proof plate 9 is sandwiched between an O-ring 3a and a holding plate 6, and is attached with a short bolt 7a.
前記いずれの実施例も、破裂板５の球面の凸部が容器内
に向っていて、その中心Ｐの近くには板厚に対して浅い
図示しない切溝が設けられている。In each of the embodiments described above, the spherical convex portion of the rupture disk 5 faces into the container, and a not-shown kerf, which is shallow relative to the plate thickness, is provided near the center P of the rupture disk 5.
ガス封入容器２の内圧は破裂板５の球面に圧力を加える
ことになるが、球面がいわばアーチ状であるので球面は
その広がりの方向において圧縮力を受ける。そして所望
の圧力に達すると前記切溝がきっかけとなって瞬間に外
に向って破裂する。切溝がないと球面は圧力で波状に変
形し破裂圧力が定まりにくい。破裂圧力は破裂板５の板
材の厚さ、材料強度、球面の曲率によって主に決定され
、かなり正確に予測できる。The internal pressure of the gas-filled container 2 applies pressure to the spherical surface of the rupture disc 5, but since the spherical surface is arch-shaped, the spherical surface receives a compressive force in the direction of its expansion. When the desired pressure is reached, the kerf acts as a trigger to instantly rupture outward. Without the kerf, the spherical surface would deform into a wave-like shape due to pressure, making it difficult to determine the bursting pressure. The bursting pressure is mainly determined by the thickness of the material of the rupture disc 5, the material strength, and the curvature of the spherical surface, and can be predicted fairly accurately.
すなわち破裂圧力を設計上で設定できる。破裂板を単な
る平板なもの、又は凸部を外に向けた球面のものでもよ
いが破裂圧力の設計上の予測がむづかしくなる。なぜな
らば凸部を容器内に向けたものは前述したように圧力に
よって圧縮力を受けるので切溝の深さはあまり影響しな
い。これに対し平板又は凸部を外に向けたものに切溝を
設けると、切溝は溝を広げる方向に引張りを受ける。し
たがって切溝の深さ、実際には切溝で残った板厚部分が
破裂圧力を大きく左右し、切溝はないのがよい。In other words, the bursting pressure can be set by design. The rupture disc may be a simple flat plate or a spherical one with the convex portion facing outward, but this makes it difficult to predict the rupture pressure in design. This is because the convex portion facing into the container receives compressive force due to pressure as described above, so the depth of the kerf does not have much effect. On the other hand, when a cut groove is provided on a flat plate or a plate with the convex portion facing outward, the cut groove is subjected to tension in the direction of widening the groove. Therefore, the depth of the kerf, in fact the thickness of the plate remaining after the kerf, greatly influences the bursting pressure, and it is better to have no kerf.
第２図に示すものは開口部が水平に向いていて、破裂し
たとき他の機器又は人体に影響するので防爆板９を設け
る。第３図は開口部が上方を向くので防爆板を必要とし
ない。In the case shown in FIG. 2, the opening is oriented horizontally, and an explosion-proof plate 9 is provided because, in the event of an explosion, other equipment or the human body may be affected. In Figure 3, the opening faces upward, so no explosion-proof plate is required.
この発明は、電気機器を収納して絶縁ガスを封入したガ
ス封入容器に開口部を設け、この開口部に薄い板材から
なり所望の圧力で破裂する破裂板を着脱自在にかつ気密
に取付けるようにしたので、ガス封入容器の気密性を害
うことな（、また過大な耐圧力容器とすることなく、内
部アーク短絡事故等に対してガス封入容器の破損を防ぎ
、簡単に修復できるという効果がある。In this invention, an opening is provided in a gas-filled container containing electrical equipment and filled with insulating gas, and a rupture disc made of a thin plate material and rupturing at a desired pressure is detachably and airtightly attached to the opening. This has the effect of preventing damage to the gas-filled container from internal arc short-circuit accidents and easily repairing it without compromising the airtightness of the gas-filled container (and without making the container too pressure-resistant). be.
第１図は実施例の要部を表す部分断面図、第２図は第１
図のものを使用したガス封入容器の全体を表す正面図で
あり、第３図は異る実施例を示す正面図である。
■・・・配電盤、２・・・ガス封入容器、５・・・破裂
板、９・・・防爆板。Fig. 1 is a partial sectional view showing the main parts of the embodiment, and Fig. 2 is a partial sectional view showing the main parts of the embodiment.
It is a front view showing the whole gas-filled container using the one shown in the figure, and FIG. 3 is a front view showing a different embodiment. ■...Switching board, 2...Gas filled container, 5...Rupture plate, 9...Explosion proof plate.
Claims (1)
器に開口部を設け、この開口部に薄い板材からなり所望
の圧力で破裂する破裂板を着脱自在にかつ気密に取付け
ることを特徴とするガス絶縁開閉装置のガス封入容器。1) A gas-filled container containing electrical equipment and filled with insulating gas is provided with an opening, and a rupture disc made of a thin plate material that ruptures at a desired pressure is removably and airtightly attached to the opening. Gas-filled container for gas-insulated switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63147103A JPH027817A (en) | 1988-06-15 | 1988-06-15 | Gas-sealed container for compressed-gas-insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63147103A JPH027817A (en) | 1988-06-15 | 1988-06-15 | Gas-sealed container for compressed-gas-insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH027817A true JPH027817A (en) | 1990-01-11 |
Family
ID=15422576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63147103A Pending JPH027817A (en) | 1988-06-15 | 1988-06-15 | Gas-sealed container for compressed-gas-insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027817A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2119720A1 (en) * | 1997-02-10 | 1998-10-01 | Schlumberger Ind Sa | Gas insulated transformer |
| JP2008151269A (en) * | 2006-12-18 | 2008-07-03 | Ebara Corp | Pressure container safety device |
| CN102361246A (en) * | 2011-06-03 | 2012-02-22 | 江苏迪康电气有限公司 | Pressure relief port assembly of gas insulated cabinet |
| WO2013076892A1 (en) * | 2011-11-22 | 2013-05-30 | 株式会社 東芝 | Gas-insulated device for electrical use |
| US8714175B2 (en) | 2010-02-24 | 2014-05-06 | Applied Separations, Inc. | Pressure relief system for pressure vessels |
| JP2019145318A (en) * | 2018-02-20 | 2019-08-29 | トヨタ自動車株式会社 | Fuel cell vehicle |
| EP3990853B1 (en) | 2019-06-25 | 2023-06-07 | Rheinmetall BAE Systems Land Limited | Overpressure protection system for a magazine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6259936B2 (en) * | 1981-01-28 | 1987-12-14 | Matsushita Electric Ind Co Ltd | |
| JPS6351505B2 (en) * | 1982-02-22 | 1988-10-14 | Nippon Kokan Kk |
-
1988
- 1988-06-15 JP JP63147103A patent/JPH027817A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6259936B2 (en) * | 1981-01-28 | 1987-12-14 | Matsushita Electric Ind Co Ltd | |
| JPS6351505B2 (en) * | 1982-02-22 | 1988-10-14 | Nippon Kokan Kk |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2119720A1 (en) * | 1997-02-10 | 1998-10-01 | Schlumberger Ind Sa | Gas insulated transformer |
| JP2008151269A (en) * | 2006-12-18 | 2008-07-03 | Ebara Corp | Pressure container safety device |
| US8714175B2 (en) | 2010-02-24 | 2014-05-06 | Applied Separations, Inc. | Pressure relief system for pressure vessels |
| CN102361246A (en) * | 2011-06-03 | 2012-02-22 | 江苏迪康电气有限公司 | Pressure relief port assembly of gas insulated cabinet |
| WO2013076892A1 (en) * | 2011-11-22 | 2013-05-30 | 株式会社 東芝 | Gas-insulated device for electrical use |
| JP2013110883A (en) * | 2011-11-22 | 2013-06-06 | Toshiba Corp | Gas insulation apparatus for electric power |
| CN103229374A (en) * | 2011-11-22 | 2013-07-31 | 株式会社东芝 | Gas-insulated device for electrical use |
| US9258917B2 (en) | 2011-11-22 | 2016-02-09 | Kabushiki Kaisha Toshiba | Gas insulated electrical equipment |
| JP2019145318A (en) * | 2018-02-20 | 2019-08-29 | トヨタ自動車株式会社 | Fuel cell vehicle |
| EP3990853B1 (en) | 2019-06-25 | 2023-06-07 | Rheinmetall BAE Systems Land Limited | Overpressure protection system for a magazine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY120382A (en) | Device for prevention against explosion of electrical transformers. | |
| US4699293A (en) | Enclosure seal | |
| JPH027817A (en) | Gas-sealed container for compressed-gas-insulated switchgear | |
| US5136278A (en) | Compact and lightweight pneumatic pressure detector for fire detection with integrity switch | |
| US4235347A (en) | Air-tight molded resin enclosure with a safety membrane for electric devices | |
| KR100957071B1 (en) | Pressure falling device of transformer | |
| US3702419A (en) | Lightning arrester with pressure relief means | |
| JP2001119817A (en) | Pressure relieving device for electric power facility | |
| KR102047832B1 (en) | Pressure relief device | |
| JPH05252622A (en) | Metallic capsule-type gas insulation breaking system | |
| US2291360A (en) | Pressure relief device | |
| JPS642351Y2 (en) | ||
| CN211351465U (en) | Pressure relief structure of inflating cabinet | |
| JPH05325930A (en) | Safety valve device for alkaline storage battery | |
| US3936703A (en) | Gas-insulated electric power apparatus including a surge arrester with hot gas relief means | |
| CN205178363U (en) | Explosion -proof safety's totally closed inflatable looped netowrk cabinet | |
| JP2515768Y2 (en) | Pressure release structure of closed gas switch | |
| GB2290368A (en) | Pressure relief valve | |
| JPS596509A (en) | Gas insulation transformer with on-load tap changer | |
| GB2571513A (en) | Enclosure for an electrical component in a potentially hazardous environment | |
| JPH0518208U (en) | Switch gear pressure release device | |
| WO2020208737A1 (en) | Pressure release device and gas insulated opening/closing device | |
| JPH04113606A (en) | Gas-filled high-voltage power capacitor | |
| JPH08140230A (en) | Pressure release device for gas insulated switching apparatus | |
| JP2003153406A (en) | Gas-insulated switchgear |