JPH04138006A - Gas insulating electric apparatus - Google Patents
Gas insulating electric apparatusInfo
- Publication number
- JPH04138006A JPH04138006A JP2262549A JP26254990A JPH04138006A JP H04138006 A JPH04138006 A JP H04138006A JP 2262549 A JP2262549 A JP 2262549A JP 26254990 A JP26254990 A JP 26254990A JP H04138006 A JPH04138006 A JP H04138006A
- Authority
- JP
- Japan
- Prior art keywords
- expansion joint
- diameter
- outer diameter
- expansion
- inner diameter
- 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
- 125000006850 spacer group Chemical group 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 2
- 230000002040 relaxant effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は複数の容器とこれらの容器の間に設けられた
伸縮継手とを備えたガス絶縁電気機器に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a gas-insulated electrical device that includes a plurality of containers and an expansion joint provided between the containers.
第３図は従来のガス絶縁電気機器の側面図であり、ガス
絶縁開閉装置（以下、ＧＩＳと称す）の場合について示
す６図において、（１）は図示しない送電線とつながっ
たブッシング、■はしゃ断器、（３）は２つの母線装置
、（イ）はしゃ断器（２）と母線装置（３）の間に設け
られた断路器であり、ブッシング（１）からしゃ断器（
２）や断路器（２）を経て母線装置（３）へつながって
いる。（９は２つの断路器４］の間に設けられた伸縮継
手で、その詳細を第４図の断面図に示す、（６）は断路
器（４）の容器、口は容器（６）に収納された充電部、
（へ）は容器（６）と伸縮継手（（５）の内部空間相互
を区分するスペーサであり、容器（６）および伸縮継手
（９内にはＳＦ６ガスなどの絶縁ガスが封入されている
。（９）は伸縮性と可撓性を有する蛇腹状の伸縮部、（
ｌＯ）は伸縮部（９）の両端に設けられたフランジ状の
２つの取付は部で、それぞれ容器（６）にスペーサ６を
間に挾んで取付けられている。伸縮部（９）の内径が取
付は部（１０）の内径とはゾ等しく、そのため伸縮部（
９）の外径は当然これにより大きく、取付は部（＋０１
の外径とはゾ等しくなっている。 （１１）は２つの取
付は部（！０）に設けられたガイドフランジ、（１２）
は伸縮部の外側に設けられたタイ口ッドで、両端部がガ
イドフランジ（１１）に固定されていて、伸縮部（９）
、取付は部（１０）、ガイドフランジ（１１）、タイロ
ッド（１２）で伸縮継手ｆ５１を構成している。 （１
３）は伸縮継手（５１内に設けられた内部導体、（１４
）は内部導体（１３）の両端部に設けられた電界緩和用
のシールドである。Figure 3 is a side view of a conventional gas-insulated electric device. In Figure 6, which shows the case of a gas-insulated switchgear (hereinafter referred to as GIS), (1) is a bushing connected to a power transmission line (not shown), and ■ is a bushing connected to a power transmission line (not shown). The breaker (3) is a disconnector provided between the two busbar devices, and (a) is a disconnector provided between the breaker (2) and the busbar device (3), and the breaker (3) is a disconnector provided between the breaker (2) and the busbar device (3).
2) and is connected to the busbar device (3) via the disconnector (2). (9 is an expansion joint installed between the two disconnectors 4), the details of which are shown in the cross-sectional view in Figure 4. (6) is the container of the disconnector (4), and the opening is connected to the container (6). The stored charging part,
(f) is a spacer that separates the internal spaces of the container (6) and the expansion joint ((5) from each other, and an insulating gas such as SF6 gas is filled in the container (6) and the expansion joint (9). (9) is a bellows-like elastic part that has elasticity and flexibility, (
1O) are two flange-shaped attachment parts provided at both ends of the extensible part (9), each of which is attached to the container (6) with a spacer 6 in between. The inner diameter of the telescopic part (9) is equal to the inner diameter of the mounting part (10), so the telescopic part (
The outer diameter of 9) is naturally larger due to this, and the installation is done at part (+01).
is equal to the outer diameter of (11) is the guide flange provided in the two mounting parts (!0), (12)
is a tie mouth provided on the outside of the telescoping section, both ends of which are fixed to the guide flange (11), and are connected to the telescoping section (9).
, the mounting part (10), the guide flange (11), and the tie rod (12) constitute an expansion joint f51. (1
3) is an internal conductor provided in the expansion joint (51), (14
) are shields provided at both ends of the internal conductor (13) for mitigating the electric field.
伸縮継手（へ）内の高電位部分と接地電位である伸縮継
手（５１との間で絶縁距離が最も短かいのはシールド（
１４）と取付は部（ｌＯ）の間であり、その距離Ｇ８が
絶縁に必要な寸法となるように取付は部（ｌＯ）の内径
Ａを決めている。The shortest insulation distance between the high potential part inside the expansion joint (51) and the expansion joint (51), which is at ground potential, is the shield (
14) and the mounting part (lO), and the inner diameter A of the mounting part (lO) is determined so that the distance G8 is a dimension necessary for insulation.
次に動作について説明する。伸縮継手（５１の伸縮性、
可視性により、ＧＩＳ構成機器の製作誤差等を吸収し、
また、伸縮継手（５１に近傍して配置された機器が事故
などで取外す必要が生じたような場合に、当・該機器の
着脱を容易にする。Next, the operation will be explained. Expansion joint (51 elasticity,
Visibility absorbs manufacturing errors of GIS component equipment,
Furthermore, in the event that equipment placed near the expansion joint (51) needs to be removed due to an accident, the equipment can be easily attached and removed.
ところで、伸縮継手（９や容器（６）には絶縁ガスが封
入されており、こられの間に内圧差があると相互間に推
力が生じるので、これをタイロッド（１２）で受けてい
る。この推力Ｆ（ｋｇｆ）は内圧差をＰ（ｋｇｆ／ｃＩ
１１） 、伸縮部（９）の平均直径をＤａ（＋ｕ＋）と
すると
となる。タイロッド（１２）がこの推力Ｆに抗して伸縮
部を保持する。Incidentally, the expansion joint (9) and the container (6) are filled with insulating gas, and if there is an internal pressure difference between them, a thrust is generated between them, and this is received by the tie rod (12). This thrust F (kgf) reduces the internal pressure difference to P (kgf/cI
11) Let Da(+u+) be the average diameter of the expandable portion (9). The tie rod (12) resists this thrust F and holds the extendable portion.
従来のガス絶縁電気機器は以上のように構成されていて
、伸縮継手の伸縮部の外径が取付は部の外径とほり同等
になっているので、その外側に設けられるタイロッド等
の部品を含めると伸縮継手全体の外径寸法が大きくなり
、またタイロッド取付は用のガイドフランジ設置のため
に伸縮継手の軸方向寸法も大きくなる。そのため機器の
配置構成上、全体寸法の縮減に対する制約となり、また
伸縮継手のコストが高くなるなどの問題点があったに
の発明は上記のような問題点を解消するためになされた
もので、寸法が縮減できるとともに伸縮継手のコストが
低いガス絶縁電気機器を得ることを目的とする。Conventional gas-insulated electrical equipment is constructed as described above, and the outer diameter of the expansion joint is approximately the same as the outer diameter of the installation part, so parts such as tie rods installed on the outside of the expansion joint are If this is included, the outer diameter of the entire expansion joint will increase, and the axial dimension of the expansion joint will also increase due to the installation of guide flanges for tie rod attachment. As a result, there were problems such as restrictions on reducing the overall dimensions of the equipment, and the cost of expansion joints increased.The invention was made to solve the above problems. The purpose of the present invention is to obtain gas-insulated electrical equipment whose dimensions can be reduced and whose expansion joints are low in cost.
この発明に係るガス絶縁電気機器は、伸縮継手の伸縮部
の内径を取付は部の内径よりも小さくするとともに、伸
縮部の外径を取付は部の外径よりも小さくしたものであ
る。In the gas-insulated electrical equipment according to the present invention, the inner diameter of the expandable portion of the expansion joint is smaller than the inner diameter of the attachment portion, and the outer diameter of the expandable portion is smaller than the outer diameter of the attachment portion.
この発明におけるガス絶縁電気機器は、伸縮部の外径を
小さくしたので、その外側に配置されたタイロッド等の
部品を含めた伸縮継手全体の外径寸法が小さくなり、ま
た、タイロッドを取付は部に直接取付けることができる
ので、ガイドフランジが不要となって伸縮継手の軸方向
寸法も小さくなる。In the gas insulated electrical equipment of the present invention, the outer diameter of the expandable part is reduced, so the outer diameter of the entire expansion joint including parts such as tie rods placed on the outside of the expandable joint is reduced, and the tie rods are not attached to the parts. Since it can be directly attached to the expansion joint, there is no need for a guide flange, and the axial dimension of the expansion joint can also be reduced.
以下、この発明の一実施例を図について説明する。第１
図はこの発明の一実施例によるガス絶縁電気機器の伸縮
継手を示す断面図であり、ガス絶縁電気機器全体の構成
は第３図と同様になっている６図において、（イ）、（
６）〜（６）、 （１０）、 （１３）、 （１４）は
第４図の場合と同様であるので説明を省略する。（５１
は２つの断路器（イ）の間に設けられた伸縮継手、（９
）は伸縮性と可撓性を有する蛇腹状の伸縮部であり、伸
縮部（９）と内部導体（１３）の間の距離Ｇ２が取付は
部（１０）とシールド（１４）の間の距離Ｇｌよりも大
きく保たれる範囲で、伸縮部（９）の径方向寸法を小さ
くしている６第２図は伸縮継手（５１の寸法図であり、
取付は部（１０）の内径Ａよりも伸縮部（９）の内径Ｂ
が小さくなっている。そのため、伸縮部（９）の内径Ｂ
が小さくなった分だけ外径りも小さくでき、伸縮部（９
）の外径りは取付は部（ｌＯ）の外径Ｃ１よりも小さく
、取付は部（１０）の内径Ａとはり同程度になっている
。その結果、第１図に示すようにタイロッド（１２）を
伸縮部（９）の外径から取付は部（ｌＯ）の外径にかけ
てのスペースにはり収めることができ、タイロッド（１
２）などのために伸縮継手＋５１全体としての外径寸法
が大きくなることはない、また、タイロッド（１２）が
取付は部（ｌＯ）の径方向寸法内に設けられるので、取
付は部（１０）に直接固定することができ、従って第４
図のようなガイドフランジ（１１）が不要となり、伸縮
継手（５）が簡素化するとともに、ガイドフランジ（１
１）の配置に要する寸法分だけ伸縮継手−の軸方向寸法
が小さくなる。An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a cross-sectional view showing an expansion joint of a gas insulated electrical equipment according to an embodiment of the present invention.
6) to (6), (10), (13), and (14) are the same as in the case of FIG. 4, so their explanation will be omitted. (51
is an expansion joint installed between two disconnectors (A), (9
) is a bellows-like elastic part with elasticity and flexibility, and the distance G2 between the elastic part (9) and the internal conductor (13) is the distance between the mounting part (10) and the shield (14). The radial dimension of the expansion/contraction part (9) is made small within a range that is kept larger than Gl. 6 Figure 2 is a dimensional drawing of the expansion joint (51).
When installing, the inner diameter B of the telescopic part (9) is smaller than the inner diameter A of the part (10).
is getting smaller. Therefore, the inner diameter B of the expandable part (9)
The outer diameter can be made smaller by the amount that the
) is smaller than the outer diameter C1 of the mounting portion (10), and is approximately the same as the inner diameter A of the mounting portion (10). As a result, as shown in FIG.
2) etc., the outer diameter of the expansion joint +51 as a whole does not increase, and since the tie rod (12) is installed within the radial dimension of the section (10), the installation is done within the section (10). ) and thus the fourth
The guide flange (11) as shown in the figure becomes unnecessary, the expansion joint (5) is simplified, and the guide flange (11) becomes unnecessary.
The axial dimension of the expansion joint is reduced by the dimension required for arrangement 1).
上記のようなガス絶縁電気機器は、第４図の場合と同様
に作用して構成機器の製作誤差などを吸収する。また、
伸縮継手（５１において絶縁距離を０２＞ Ｇ 、にし
ているので絶縁性能は距離Ｇ１で決まり、従って伸縮部
（９）の内径を小さくしたことによる絶縁性能の低下は
ない。The gas insulated electrical equipment as described above operates in the same way as the case shown in FIG. 4 to absorb manufacturing errors of the component equipment. Also,
Since the insulation distance in the expansion joint (51) is set to 02>G, the insulation performance is determined by the distance G1, and therefore the insulation performance does not deteriorate due to the reduction in the inner diameter of the expansion and contraction part (9).
なお、上記実施例では、タイロッド（１２）の両側を固
定した固定式伸縮継手を用いた場合を示したが、機器の
熱伸縮、基礎の不等性下等の組立後の変位も吸収するば
ね補償形、圧力バランス形などの自由形伸縮継手を用い
た場合でも同様の効果を奏する。In the above embodiment, a fixed expansion joint is used in which both sides of the tie rod (12) are fixed. A similar effect can be obtained even when a free type expansion joint such as a compensation type or a pressure balance type is used.
以上のように、この発明によれば伸縮継手の伸縮部の内
径を取付は部の内径よりも小さくするとともに、伸縮部
の外径を取付は部の外径よりも小さくしたので、伸縮部
の外側に設けられるタイロッドなどの部品を含めた伸縮
継手全体の外径寸法が小さくなるなど伸縮継手が小形化
され、そのためガス絶縁電気機器の寸法を縮減すること
ができる。また伸縮継手の小形化、簡素化により伸縮継
手のコストを低減できる効果がある。As described above, according to the present invention, the inner diameter of the expandable part of the expansion joint is made smaller than the inner diameter of the attachment part, and the outer diameter of the expandable part is made smaller than the outside diameter of the attachment part. The expansion joint can be made smaller by reducing the outer diameter of the entire expansion joint including parts such as tie rods provided on the outside, and therefore the size of the gas-insulated electrical equipment can be reduced. Furthermore, the cost of the expansion joint can be reduced by downsizing and simplifying the expansion joint.
第１図はこの発明の一実施例によるガス絶縁電気機器の
伸縮継手を示す断面図、第２図は第１図の伸縮継手の寸
法図、第３図は従来のガス絶縁電気機器を示す側面図、
第４図は第３図のガス絶縁電気機器の伸縮継手を示す断
面図である。
図において、（へ）は伸縮継手、（６）は容器、（７）
は充電部、（９）は伸縮部、（１０）は取付は部、Ａは
取付は部の内径、Ｂは伸縮部の内径、Ｃは取付は部の外
径、Ｄは伸縮部の外径である。
なお、各図中同一符号は同一または相当部分を示す。
代 理 人 弁理士 大 岩 増 雄第１ＩＩ
５ 神縮超す
Δ：容器
７、先電部
り 仲、縮部
ｌＯ：取４初部
第２図
第４図Fig. 1 is a cross-sectional view showing an expansion joint of a gas insulated electrical equipment according to an embodiment of the present invention, Fig. 2 is a dimensional drawing of the expansion joint shown in Fig. 1, and Fig. 3 is a side view showing a conventional gas insulated electrical equipment. figure,
FIG. 4 is a sectional view showing the expansion joint of the gas insulated electrical equipment of FIG. 3. In the figure, (f) is an expansion joint, (6) is a container, (7)
is the live part, (9) is the telescopic part, (10) is the mounting part, A is the inner diameter of the mounting part, B is the inner diameter of the telescopic part, C is the outer diameter of the mounting part, D is the outer diameter of the telescopic part It is. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Patent Attorney Masuo Oiwa No. 1 II 5 Shinjitsusu Δ: Container 7, Pre-Electronic Department Ri Naka, Kujibu IO: Tori 4 First Part 2 Figure 4
Claims (1)
蛇腹状の伸縮部とこの伸縮部の両端に設けられて上記複
数の容器にそれぞれ取付けられる２つのフランジ状の取
付け部とを有する伸縮継手を備えたものにおいて、伸縮
部の内径を取付け部の内径よりも小さくするとともに伸
縮部の外径を取付け部の外径よりも小さくしたことを特
徴とするガス絶縁電気機器。multiple containers containing live parts and filled with insulating gas;
In an expansion joint having a bellows-like expandable part and two flange-like attachment parts provided at both ends of the expandable part and attached to the plurality of containers, the inner diameter of the expandable part is the inner diameter of the attachment part. Gas insulated electrical equipment characterized in that the outer diameter of the expandable part is smaller than the outer diameter of the mounting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262549A JPH04138006A (en) | 1990-09-27 | 1990-09-27 | Gas insulating electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262549A JPH04138006A (en) | 1990-09-27 | 1990-09-27 | Gas insulating electric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04138006A true JPH04138006A (en) | 1992-05-12 |
Family
ID=17377356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2262549A Pending JPH04138006A (en) | 1990-09-27 | 1990-09-27 | Gas insulating electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04138006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10246598A1 (en) * | 2002-10-05 | 2004-04-15 | Alstom | Busbar coupling especially for gas-insulated medium- voltage switchgear, has bellows mounted between switch-bays and filled with insulating gas |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59198810A (en) * | 1983-04-22 | 1984-11-10 | 三菱電機株式会社 | Gas insulated switching device |
-
1990
- 1990-09-27 JP JP2262549A patent/JPH04138006A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59198810A (en) * | 1983-04-22 | 1984-11-10 | 三菱電機株式会社 | Gas insulated switching device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10246598A1 (en) * | 2002-10-05 | 2004-04-15 | Alstom | Busbar coupling especially for gas-insulated medium- voltage switchgear, has bellows mounted between switch-bays and filled with insulating gas |
| US7775818B2 (en) | 2002-10-05 | 2010-08-17 | Areva T&D Sa | Bus bar connection for a gas-insulated switchboard system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4268890A (en) | Breaker combination for bus bar installations | |
| AU6877801A (en) | Gas insulated switchgear | |
| KR100397393B1 (en) | Gas insulated switchgear | |
| US20110000922A1 (en) | Pressurized container arrangement with a compensation bellows | |
| EP0475268A2 (en) | Gas circuit breaker | |
| KR101309362B1 (en) | Transverse dismantling module for a switchgear | |
| JPH11318011A (en) | Capsule device of gas-insulated high voltage switchgear with compensating element | |
| US3903387A (en) | Gas-insulated switching apparatus | |
| CA1065425A (en) | Coupling flex-plate construction for gas-insulated transmission lines | |
| US4038486A (en) | Supporting insulator assembly for gas-insulated equipment | |
| EP1326080B1 (en) | Voltage sensor for gas insulated electric apparatus | |
| JPH04138006A (en) | Gas insulating electric apparatus | |
| US3624450A (en) | Metal enclosed gas insulated lightning arrester | |
| JP2014030282A (en) | Three-phase gas-insulated bus | |
| CN106328363A (en) | External current transformer assembly and gas insulated switchgear with same | |
| US5006958A (en) | Gas insulation switchgear | |
| CN112865011A (en) | Multiphase insulation support column for GIL, insulation assembly and gas insulation type power transmission device | |
| KR102086949B1 (en) | The busbar for eco-friendly gas insulated load break switch to possess modular design of insulation parts | |
| CN215646134U (en) | Multiphase insulation support column for GIL, insulation assembly and gas insulation type power transmission device | |
| JPH11122730A (en) | Gas insulated switch device | |
| SU454625A1 (en) | Busbar section | |
| JPH11127510A (en) | Gas insulation switchgear | |
| JPH06133419A (en) | Gas-insulation switchgear | |
| JP2766368B2 (en) | Three-phase one-tank gas circuit breaker with current transformer | |
| SU1064338A1 (en) | Vacuum selector switch |