517668 Λ7 B7 五、發明説明（1 ) 〔發明所屬之技術領域〕 本發明係關於一種氣體絕緣母線，尤其是，關於一種 適合於提高絕緣性能及提高溫度特性的絕緣母線。 〔以往之技術〕 以往之裝置係如日本特開昭5 8 — 5 1 7 1 5號公報 ’特開昭58 — 144514號公報及特開平 2 — 7 8 2 3號公報所述，在高壓導體與接地金屬容器下 方的柱狀絕緣襯墊安裝部，將導體之中心軸比金靥容器之 中心軸向上方偏心，或在導體之下方向形成凹形之構造， 而在導體與金屬容器之間的絕緣隔板安裝位置，藉說明增 加絕緣距鹺並提昇尺寸之絕緣襯墊以提高絕緣耐力。 又，如日本特開平5 — 9 1 6 3 0號公報所述，提案 一種藉由固定於金屬容器上方之絕緣襯墊從上方固定支持 導體，而在該絕緣襯墊下方之金屬容器底部具備持有異物 之補充及作業用操作孔功能之凹部的氣體絕緣母線。 〔發明欲解決之課題〕 在上述以往之氣體絕緣母線，由於從下方將導體固定 支持於金屬容器的絕緣襯墊沿面方向的容許電場強度，比 絕緣氣體中之容許電場強度低，因此，異物附著絕緣襯墊 沿面時，成爲在絕緣襯墊沿面容易產生絕緣破壞。如此， 作爲增長絕緣襯墊沿面之絕緣距離的方法，將導體中心軸 比金屬容器之中心軸向上方偏心，惟此時，因金屬容器之 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 請先閲讀背面之注意事項再填寫本頁) 訂 經濟部中央標準局員工消費合作社印製 經濟部中央標準局員工消費合作社印策 A7 B7 五、發明説明（2 ) 上部與導體之距離會縮短，原來就在金屬容器上部，溫度 上昇成爲最大，惟局部的成爲再增長該溫度上昇。結果， 雖依絕緣襯墊之尺寸提昇而可提高絕緣耐力，惟爲了降低 溫度上昇，具有必須將導體及金屬容器之材料成爲髙價之 要由：封入絕緣氣體的接地金靥容器1(或是簡稱爲金屬 容器1)，配置於接地金屬容器1內的高壓導體2，用以 固定支持高壓導體2所用的絕緣襯墊3或4所構成。該高 壓導體2之中心軸係對於金屬容器1之中心軸設成向下方 側偏心的位置。 絕緣襯墊3係如下述地被連接而固定支持於金靥容器 1與高壓導體2，並固定支持高壓導體2。在絕緣襯墊3 之高壓側的下部安裝有高壓側埋入電極3 a，而該高壓側 埋入電極3 a係藉由螺栓等被固定在安裝用固定具2 a ， 而藉由螺栓等將安裝用固定具2 a固定在高壓導體2之上 部。一方面，在絕緣襯墊3之低壓側的上部安裝有低壓側 埋入電極3 b，該低壓側埋入電極3 b係藉由螺栓等被固 定在安裝用固定具5低電阻材料的問題。 〔發明之概要〕 本發明之目的係在於緩和金靥容器之溫度上昇成爲最 大之上部的局部溫度上昇，而藉由金屬容器及導體材質之 變更來削減材料費用。 又’本發明之目的係在於提高絕緣襯墊之絕緣性能， 藉由絕緣襯墊之尺寸提昇來提高絕緣耐力，且可得到金屬 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）~二ς _ ----------.*4-------ΐτ------ (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 317668 A7 —__B7___ 五、發明説明（3 ) 容器直徑之縮小化及低成本化。 〔解決課題所用之手段〕 爲了達成上述目的*本發明之氣體絕緣母線，屬於封 入絕緣氣體而成爲接地電位的圓筒狀金屬容器，及在該金 屬容器由配設高壓導體的氣體絕緣母線，其特徵爲：對於 金屬容器之中心軸將上述高壓導體之中心軸而下方側偏心 者。 又*爲了達成上述目的，本發明之氣體絕緣母線，靥 於封入絕緣氣體而成爲接地電位的圓筒狀金靥容器*及在 該金屬容器由配設高壓導體的氣體絕緣母線，其特徵爲： 藉由比上述高壓導體設於上部側的絕緣襯墊將上述高壓導 體固定支持於上述金屬容器者。 又，爲了達成上述目的，本發明係對於金靥容器之中 心軸將高壓導體之中心軸向下方側偏心，而且將該偏心量 成爲高壓導體之直徑之1 5%至4 0%之範圍，爲其特徵 者。 又，爲了達成上述目的，本發明係對於金屬容器之中 心軸將高壓導體之中心軸向下方側偏心，而且將該偏心量 成爲高壓導體之直徑之2 0%至4 0%之範圍，爲其特徵 者。 〔發明之實施形態〕 以下，依照第1圖至第3圖說明本發明之一實施例， 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ---------i------,訂------ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（4 ) 。第1圖係表示本實施例之氣體絕緣母線的縱剖面圖，箄 2圖係表示從第1圖之箭號A — A所觀看的氣體絕緣母線 的橫剖面圖，第3圖係從第1圖之箭號B — B所觀看的氣 體絕緣母線的橫剖面圖。第4圖係表示本實施例之氣體絕 緣母線之溫度特性與偏心比率之關係的圖表。第5圖係表 示本實施例之氣體絕緣母線之絕緣性能與偏心比率之關係 的圖表。 如第1圖至第5圖所示，本實施例之氣體絕緣母線係 主，而藉由螺栓6等將安裝用固定具5支持於事先焊接於 金屬容器1之安裝座1 a。此時，固定及微調整係藉由調 整螺栓6來實行。又，高壓導體2對於安裝用固定具2 a 之安裝部，係僅加工上方，防止包含於中空的高壓導體2 之內部的異物對金靥容器1底面的掉落。 又，絕緣襯墊4係如下述地被連接而固定支持於金屬 容器1與高壓導體2，而固定支持高壓導體2。在絕緣襯 墊4之高壓側的下部安裝有高壓側埋入電極4 a，而該高 壓側埋入電極4 a係形成筒狀並內插有高壓導體2。一方 面，在絕緣襯墊4之低壓側的上部安裝有低壓埋入電極4 b，該低壓側埋入電極4 b係藉由螺栓6等支持有安裝用 固定具5，而藉由螺栓6等將安裝用固定具5支持於事先 焊接於金屬容器1之安裝座1 a。此時，固定及微調整係 藉由調整螺栓6來實行。又因將高壓導體2插入在筒狀高 壓側埋入電極4 a。因此，防止包含於中空的高壓導體2 之內部的異物的異物之掉落。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）_ 7 _ -----------------、訂------^ (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（5 ) 在本實施例，係將高壓導體2之中心軸比金屬容器1 之中心軸向下方偏心，惟作爲該偏心量，理論上，高壓導 體2與金屬1上方之距離比偏心前增長1 〇%至1 5 0% 〇 如此，由於將高壓導體2之中心軸比金靥容器1之中 心軸向下方偏心，因此當發熱源之高壓導體2接近金靥容 器1之底部，可抑制金屬容器1之最容易產生溫度上昇的 金靥容器1上部的溫度上昇，而整體可成爲均勻之溫度上 昇。由於對於容許溫度在溫度上昇上可有餘量，因此對於 金屬容器1或高壓導體2之材料選擇上有些寬度，也可使 用雖具有大電阻值但低成本之材料，而能削減經費。又， 可縮小金屬容器1之直徑，能得到提高經濟性與縮小整體 變電所。 又，作成與以往相同直徑之金屬容器時，由於成爲可 安裝經尺寸提昇之絕緣襯墊3或4，故增加絕緣襯墊3或 絕緣襯墊4之沿面漏電阻，也降低沿面電場強度。又，即 使異物包含於金靥容器1內，也因向下方向掉落，而絕緣 襯墊3或絕緣襯墊4不會產生異物之附著，故可提高絕緣 襯墊3或絕緣襯墊4之絕緣性能" 以下，參照第4圖及第5圖說明本發明之一實施例的 偏心量。 第4圖係表示對於高壓導體之導體徑（直徑）以變更 以第2圖第3圖所示之偏心尺寸D的（D/W)，及金靥 容器1上之最大溫度上昇值0 Η與最小溫度上昇值0 1之比 本紙張尺度適用中國國家標準（CNS ) Α4規格（2丨ΟΧ297公釐） ~ I I I I I 訂 __ i I __ I |嘴 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A7 ___________B7 五、發明説明（6 ) (0Η/θι)的圖表資料。 作爲金屬容器之理想性溫度分布，係均勻地加熱整體 容器之狀態的0h=0l(0h/0l=1 · 0)較理想 ’愈遠離該值，表示在容器上愈產生溫度差。如此，如該 圖表資料所示，將高壓導體2之中心軸比金屬容器1之中 心軸向下方將（P/W)之數值以1 5%〜4 0%之範圍 偏心’表示可將容器之溫度差放在理想的容許範圍（1 〇 %以內）。 第5圖係表示對於高壓導體之導體徑（直徑）W變更 以第2圖及第3圓所示之偏心尺寸D的比（D/W)及氣 體空間耐壓值Ec與絕緣襯墊耐壓值Es之比（Ec/Es) 的圖表資料。 作爲耐壓狀況，係氣體空間耐壓值Ee與絕緣襯墊值 Es之比Eg/ Es成爲1 〇之狀況，表示氣體空間耐壓值 E+c與絕緣襯墊耐壓值丑3獲得平衡，一面能保持耐壓之安 定性一面小巧精緻地構成整體金屬容器，Ec/Es值比該 值大時，則氣體空間耐壓值Ec勝過絕緣襯墊耐壓值Es， 表示氣體空間耐壓高且金靥容器大，若變低， 則絕緣襯墊耐壓值Es之耐壓負於空間耐壓值£(；，表示未 保持耐壓之安定性。 該第5圖之圖表5 2係表示對於高壓導體2之外徑與 金屬容器之內徑之比值的實質之上限值 ，又，圖表5 4係對於高壓導體2之外徑與金屬容器之內 徑之比0/界的£(5/£3值的實質之下限值者。以氣體絕 本紙張尺度適用中國國家標準（CNS〉A4規格（210X297公釐） (請先聞讀背面之注意事項再填寫本頁) 訂 < -9 - 317668 A7 B7 五、發明説明（7 ) 緣母線係以圖表5 2與5 4之間的領域5 6之部分使用作 爲一般性之設計範圍，例如，將金屬內容之內徑作爲 5 0 Omm，將高壓導體之外徑作爲1 5 Omm，設定成 比D/W = 2 7%之構成被使用。 如該圖表資料所示，本發明係藉將高壓導體2之中心 軸比金靥容器1之中心軸向下方以（D/W)值在2 0% 〜5 0%之範圍內偏心，表示可將EG/ Es值進入理想的 容許範圍（±5%以內）。 又，在本發明之實施例，由第4圖與第5圖之圖表， 成爲可採取具有以溫度分布作爲中心的構成，或以耐壓作 爲中心的構成，或是具有雙方之特徵的構成。 經濟部中央樣準局員工消费合作社印裝 (請先閲讀背面之注意事項再填寫本頁) 亦即採取偏心值（D /W )較低值之構成時，爲例如 1 5%至2 0%之範圍，則作爲金屬容器成爲稍大型，惟 成爲可提供溫度分布特性優異的氣體絕緣母線，又，若爲 4 0 %至5 0%之範圍，則溫度分布不是均勻，而不得不 使用昂貴之構件，惟成爲可提供小巧精緻而耐壓特性優異 的氣體絕緣母線。若組合這些案件成爲2 0%至4 0%之 範圍，則成爲可提供溫度分布特性優異，且耐壓特性也優 異的小巧精緻的氣體絕緣母線。 〔發明之效果〕 如上所述，依照本發明，在封入絕緣氣體而成爲接地 電位的圓筒狀金屬容器內配設在高壓導體的氣體絕緣母線 ，由於對於金屬容器之中心軸將高壓導體之中心軸向下方 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ~ ' -1U - A7 B7 五、發明説明（8 ) 側偏心，因此成爲可均勻地保持金靥容器之溫度分布。 又，由於藉由比固定於金屬容器上部的柱狀絕緣襯墊 支持固定高壓導體，因此，提供一種可提高絕緣性能，可 抑制在金靥容器之上部所產生的局部性之溫度上昇，提高 經濟性及對整體變電所之縮小化有很大幫助的氣體絕緣母 線。 〔圖式之簡單說明〕 第1圖係表示本發明之一實施例之氣體絕緣母線的縱 剖面圖。 第2圖係表示第1圖之A — A箭視的剖面圖。 第3圖係表示第1圖之B-B箭視的剖面圖。 第4圖係表示本實施例之氣體絕緣母線之溫度特性與 偏心比率之關係的圖表》 第5圖係表示本實施例之氣體絕緣母線之絕緣性能與 偏心比率之關係的圖表。 --------------.--、訂------^ (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消費合作社印製 t 本紙張尺度適用中國國家標準（CNS)A4現格（ 210X297公釐）_ ^517668 Λ7 B7 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a gas-insulated bus, in particular, to an insulated bus suitable for improving insulation performance and improving temperature characteristics. [Conventional Technology] Conventional devices are as described in Japanese Patent Laid-Open No. 5 8-5 1 7 15 No. 5 Japanese Patent Laid-Open No. 58-144514 and Japanese Patent Laid-Open No. 2-7 8 2 3 The installation part of the column-shaped insulating gasket below the grounded metal container, the center axis of the conductor is more eccentric than the center axis of the gold-tipped container, or a concave structure is formed under the conductor, and between the conductor and the metal container For the installation position of the insulation partition, the insulation spacers with increased insulation distance and increased size are used to improve the insulation endurance. Moreover, as described in Japanese Patent Laid-Open No. 5-9 1 6 3 0, a support conductor is proposed to be fixed from above by an insulating gasket fixed above the metal container, and the bottom of the metal container below the insulating gasket is provided with a support Gas-insulated bus bar with concave part for supplement of foreign objects and operation hole function for operation. [Problems to be Solved by the Invention] In the above-mentioned conventional gas-insulated busbar, the allowable electric field strength in the surface direction of the insulating gasket that fixes and supports the conductor to the metal container from below is lower than the allowable electric field strength in the insulating gas. When the insulating gasket runs along the surface, insulation breakdown is likely to occur along the insulating gasket running surface. In this way, as a method of increasing the insulation distance along the insulation liner, the center axis of the conductor is eccentric upward from the center axis of the metal container, but at this time, because the original paper size of the metal container is applicable to the Chinese National Standard (CNS) A4 specification (210X297 Mm) Please read the precautions on the back before filling out this page) Order printed by the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative Printed by the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative A7 B7 5. Invention Description (2) Distance between upper part and conductor It will be shortened, and it is originally in the upper part of the metal container, the temperature rise becomes the largest, but the local rise becomes the temperature rise again. As a result, although the insulation endurance can be improved according to the increase in the size of the insulation liner, in order to reduce the temperature rise, there is a reason why the material of the conductor and the metal container must be high: the grounded metal container 1 (or Referred to simply as a metal container 1), the high-voltage conductor 2 disposed in the grounded metal container 1 is configured to fix the insulating gasket 3 or 4 used to support the high-voltage conductor 2. The center axis of the high-voltage conductor 2 is set eccentrically to the center axis of the metal container 1 downward. The insulating gasket 3 is connected as described below to be fixedly supported by the metal container 1 and the high-voltage conductor 2, and the high-voltage conductor 2 is fixedly supported. The high-voltage side buried electrode 3 a is mounted on the lower portion of the insulating gasket 3 on the high-voltage side, and the high-voltage side buried electrode 3 a is fixed to the mounting fixture 2 a by bolts, etc., and is fixed by bolts, etc. The mounting fixture 2 a is fixed above the high-voltage conductor 2. On the one hand, a low-voltage side buried electrode 3b is attached to the upper portion of the low-voltage side of the insulating gasket 3, and the low-voltage side buried electrode 3b is fixed to the low-resistance material of the mounting fixture 5 by bolts or the like. [Summary of the Invention] The purpose of the present invention is to alleviate the temperature rise of the metal container and the local temperature rise at the uppermost part, and to reduce the material cost by changing the material of the metal container and the conductor. Also, the purpose of the present invention is to improve the insulation performance of the insulation liner. The insulation endurance is improved by the increase in the size of the insulation liner, and the metal-based paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ 二 ς _ ----------. * 4 ------- lsτ ------ (please read the notes on the back before filling out this page) Staff of Central Bureau of Standards, Ministry of Economic Affairs Printed by the consumer cooperative 317668 A7 —__ B7___ V. Description of the invention (3) Reduction of container diameter and cost reduction. [Means used to solve the problem] In order to achieve the above object * The gas-insulated busbar of the present invention belongs to a cylindrical metal container in which an insulating gas is enclosed and becomes a ground potential, and a gas-insulated busbar provided with a high-voltage conductor in the metal container, which The feature is that the center axis of the high-voltage conductor is eccentric to the center axis of the metal container. In addition, in order to achieve the above object, the gas-insulated busbar of the present invention is filled with an insulating gas to form a cylindrical gold-tungsten container with an earth potential * and a gas-insulated busbar equipped with a high-voltage conductor in the metal container is characterized by: A person who fixes and supports the high-voltage conductor to the metal container with an insulating gasket provided on the upper side than the high-voltage conductor. In addition, in order to achieve the above object, the present invention eccentrically reduces the center axis of the high-voltage conductor to the central axis of the gold-tight container, and the amount of eccentricity is in the range of 15% to 40% of the diameter of the high-voltage conductor, as Its characteristics. In addition, in order to achieve the above object, the present invention eccentrically lowers the center axis of the high-voltage conductor to the center axis of the metal container, and the amount of eccentricity is in the range of 20% to 40% of the diameter of the high-voltage conductor. Characteristic. [Embodiment of the invention] Hereinafter, an embodiment of the present invention will be described in accordance with FIGS. 1 to 3, and the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) --------- i ------, order ------ (Please read the precautions on the back before filling in this page) A7 B7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. Description of invention (4). Fig. 1 is a longitudinal cross-sectional view of the gas-insulated bus bar of this embodiment, Fig. 2 is a cross-sectional view of the gas-insulated bus bar viewed from arrow AA in Fig. 1, and Fig. 3 is from the first Arrows B-the cross-sectional view of the gas-insulated bus seen from B. Fig. 4 is a graph showing the relationship between the temperature characteristic of the gas insulating bus bar of this embodiment and the eccentricity ratio. Fig. 5 is a graph showing the relationship between the insulation performance and the eccentricity ratio of the gas-insulated bus bar of this embodiment. As shown in FIGS. 1 to 5, the gas-insulated bus bar of this embodiment is the main body, and the mounting fixture 5 is supported by the bolt 6 or the like to the mounting base 1 a welded to the metal container 1 in advance. At this time, fixing and fine adjustment are performed by adjusting the bolt 6. In addition, the high-voltage conductor 2 is processed only at the upper portion of the mounting fixture 2 a to prevent the foreign matter contained in the hollow high-voltage conductor 2 from falling on the bottom surface of the gold-tight container 1. In addition, the insulating gasket 4 is connected and fixedly supported by the metal container 1 and the high-voltage conductor 2 as described below, and the high-voltage conductor 2 is fixedly supported. A high-voltage side buried electrode 4a is attached to the lower portion of the insulating pad 4 on the high-voltage side, and the high-voltage side buried electrode 4a is formed into a cylindrical shape with a high-voltage conductor 2 inserted therein. On the one hand, a low-voltage buried electrode 4 b is mounted on the upper portion of the low-voltage side of the insulating gasket 4, and the low-voltage buried electrode 4 b is supported by a mounting fixture 5 with a bolt 6 and the like, and with a bolt 6 and the like The mounting fixture 5 is supported on the mounting base 1 a welded to the metal container 1 in advance. At this time, the fixing and fine adjustment are performed by the adjustment bolt 6. Furthermore, the electrode 4a is embedded by inserting the high-voltage conductor 2 on the cylindrical high-voltage side. Therefore, the foreign matter contained in the hollow high-voltage conductor 2 is prevented from falling. The paper size is applicable to China National Standard (CNS) A4 specification (210X297mm) _ 7 _ -----------------, order ------ ^ (please read first Note on the back and then fill out this page) A7 B7 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) In this embodiment, the central axis of the high-voltage conductor 2 is lower than the central axis of the metal container 1 Eccentricity, but as the amount of eccentricity, in theory, the distance between the high-voltage conductor 2 and the metal 1 is increased by 10% to 150% than before the eccentricity. As such, the center axis of the high-voltage conductor 2 is greater than the center of the gold container 1 The axis is eccentric downward, so when the high-voltage conductor 2 of the heat source is close to the bottom of the gold container 1, the temperature rise of the upper part of the metal container 1 that is most likely to cause a temperature rise can be suppressed, and the whole can become a uniform temperature rise . Since there is a margin for the allowable temperature to rise in temperature, the width of the material of the metal container 1 or the high-voltage conductor 2 is selected to a certain width, and a material with a large resistance value but a low cost can be used, and the cost can be reduced. In addition, the diameter of the metal container 1 can be reduced, and economic efficiency can be improved and the overall substation can be reduced. In addition, when a metal container having the same diameter as in the prior art is formed, the insulating gasket 3 or 4 whose size is increased can be mounted. Therefore, the creeping leakage resistance of the insulating gasket 3 or the insulating gasket 4 is increased, and the creeping electric field strength is also reduced. In addition, even if a foreign object is contained in the container of gold tart, it will fall downwards, and the insulating gasket 3 or the insulating gasket 4 will not adhere to the foreign material, so the insulating gasket 3 or the insulating gasket 4 can be increased Insulation performance " Hereinafter, the amount of eccentricity according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5. Figure 4 shows the conductor diameter (diameter) of the high-voltage conductor with the eccentric dimension D (D / W) shown in Figure 2 and Figure 3, and the maximum temperature rise value 0 Η and The ratio of the minimum temperature rise value of 0 1 This paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (2 丨 ΟΧ297mm) ~ IIIII order __ i I __ I | mouth (please read the precautions on the back before filling this page ) A7 ___________B7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. The description of the invention (6) (0Η / θι). As the ideal temperature distribution of the metal container, 0h = 0l (0h / 0l = 1 · 0) of the state of uniformly heating the whole container is more ideal. The farther away from this value, the more the temperature difference occurs in the container. In this way, as shown in the chart data, the central axis of the high-voltage conductor 2 is lower than the central axis of the metal container 1 by (P / W) value in the range of 1 5% ~ 40% eccentricity 'indicates that the container can be The temperature difference is placed in the ideal allowable range (within 10%). Figure 5 shows the ratio of the diameter (diameter) W of the high-voltage conductor to the eccentric dimension D shown in Figures 2 and 3 (D / W), the gas space withstand voltage Ec and the insulation gasket withstand voltage The graph data of the value Es ratio (Ec / Es). As a withstand voltage situation, the ratio of the gas space withstand voltage value Ee to the insulation liner value Es Eg / Es becomes 1 〇, indicating that the gas space withstand voltage value E + c and the insulation liner withstand voltage value 3 are balanced, One side can maintain the stability of the pressure resistance, while the small and exquisitely constitute the whole metal container. When the Ec / Es value is greater than this value, the gas space pressure value Ec is better than the insulation liner pressure value Es, indicating that the gas space pressure resistance is high And if the gold container is large, if it becomes lower, the withstand voltage value of the insulation gasket Es is less than the space withstand voltage £ (;, it means that the stability of the withstand voltage is not maintained. The graph 5 2 in the fifth figure shows For the upper limit of the ratio of the outer diameter of the high-voltage conductor 2 to the inner diameter of the metal container, Table 5 4 is the ratio of 0 / bound for the ratio of the outer diameter of the high-voltage conductor 2 to the inner diameter of the metal container. / The actual lower limit of the value of £ 3. The Chinese national standard (CNS> A4 specification (210X297mm) is applicable to the standard of gas extinction paper (please read the precautions on the back and then fill out this page). Order <- 9-317668 A7 B7 5. Description of the invention (7) The part of the edge bus is shown in the field 5 6 between chart 5 2 and 5 4 Used as a general design range, for example, the inner diameter of the metal content is 50 Omm, the outer diameter of the high-voltage conductor is 15 Omm, and the ratio D / W = 2 7% is used. As shown in the chart As shown in the data, the present invention deviates the center axis of the high-voltage conductor 2 from the center axis of the gold container 1 by (D / W) value within the range of 20% ~ 50%, indicating that EG / The Es value enters the ideal allowable range (within ± 5%). Furthermore, in the embodiment of the present invention, the graphs in FIGS. 4 and 5 can be configured to have a temperature distribution as the center, or a pressure resistance As the structure of the center, or the structure with the characteristics of both parties. Printed by the Consumer Cooperative of the Central Bureau of Samples of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page), that is, take the eccentricity value (D / W) lower When the value is constituted, for example, in the range of 1 5% to 20%, the metal container becomes slightly larger, but it can provide a gas-insulated bus bar with excellent temperature distribution characteristics, and if it is 40% to 50% Range, the temperature distribution is not uniform and expensive components have to be used However, it becomes a gas-insulated busbar that can provide compactness and excellent pressure resistance characteristics. If these cases are combined in the range of 20% to 40%, it will be small and delicate that can provide excellent temperature distribution characteristics and excellent pressure resistance characteristics. Gas-insulated busbar. [Effects of the invention] As described above, according to the present invention, the gas-insulated busbar provided with a high-voltage conductor in a cylindrical metal container filled with an insulating gas and becoming a ground potential has no effect on the central axis of the metal container. Put the center of the high-voltage conductor axially downward. This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ '-1U-A7 B7 V. Description of the invention (8) The side is eccentric, so it can evenly maintain the gold Temperature distribution of the container. In addition, because the high-voltage conductor is supported and fixed by a columnar insulating gasket fixed to the upper part of the metal container, it provides an insulation performance that can suppress the localized temperature rise generated on the upper part of the gold container and improve economy And gas insulated busbars, which are of great help to the reduction of the overall substation. [Brief description of drawings] Fig. 1 is a longitudinal sectional view showing a gas-insulated bus bar according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the arrow AA of Figure 1. Fig. 3 is a cross-sectional view showing the arrow B-B of Fig. 1; Fig. 4 is a graph showing the relationship between the temperature characteristics of the gas-insulated busbars and the eccentricity ratio of the present embodiment. Fig. 5 is a graph showing the relationship between the insulation performance and the eccentricity ratio of the gas-insulated busbars of the present embodiment. --------------.--, order ------ ^ (please read the notes on the back before filling out this page) Printed by Beigong Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs t The size of this paper is in accordance with Chinese National Standard (CNS) A4 (210X297mm) _ ^