JP3424950B2 - Disconnector for gas-insulated high-voltage equipment sealed with metal - Google Patents

Disconnector for gas-insulated high-voltage equipment sealed with metal

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Publication number
JP3424950B2
JP3424950B2 JP00531893A JP531893A JP3424950B2 JP 3424950 B2 JP3424950 B2 JP 3424950B2 JP 00531893 A JP00531893 A JP 00531893A JP 531893 A JP531893 A JP 531893A JP 3424950 B2 JP3424950 B2 JP 3424950B2
Authority
JP
Japan
Prior art keywords
opening
disconnector
electrode
insulating sleeve
arc electrode
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.)
Expired - Fee Related
Application number
JP00531893A
Other languages
Japanese (ja)
Other versions
JPH05282968A (en
Inventor
トーマス・ドゥンツ
Original Assignee
アーベーベー・シュヴァイツ・ホルディング・アクチエンゲゼルシヤフト
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/029—Composite material comprising conducting material dispersed in an elastic support or binding material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/045—Means for extinguishing or preventing arc between current-carrying parts for arcs formed during closing

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、軸線上を相対的に移
動し、それぞれ一つのシールド電極を有し、開閉過程で
軸線に保持されるそれぞれ一つのプレアーク電極を有す
る二つの開閉部材を備え、両方の開閉部材の第一開閉部
材に設けたプレアーク電極が軸方向に移動可能に配置さ
れ、中空円筒状に形成されている金属で封止されたガス
絶縁高電圧装置の断路器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises two opening / closing members which move relative to each other on an axis, each having one shield electrode, and each having one pre-arc electrode held on the axis during the opening / closing process. The present invention relates to a disconnector for a gas-insulated high-voltage device, in which a pre-arc electrode provided on the first opening / closing member of both opening / closing members is movably arranged in an axial direction and is sealed with a metal formed into a hollow cylindrical shape.

【０００２】[0002]

【従来の技術】金属で封止されたガス絶縁高電圧装置の
断路器は、開閉過程中にプレアークが横放電を与えず、
金属カプセルで短絡しないように構成されている。横放
電の原因はプレアークの期間中に先行放電が統計的によ
り空間的に広がること、およびそれに続き、電界の元の
主要軸方向分布が主要な半径方向の電界分布に切り換わ
ることによるもので、その後両方の開閉部材の一方から
出る先行放電が対向開閉部材に達する。 2. Description of the Related Art A disconnector of a gas-insulated high-voltage device sealed with metal has a pre-arc that does not give a lateral discharge during a switching process.
It is configured so that it does not short-circuit with a metal capsule. The cause of the transverse discharge is due to the statistically more spatial spread of the preceding discharge during the pre- arc , and the subsequent switching of the original main axial distribution of the electric field to the main radial electric field distribution. After that, the preceding discharge from one of the opening / closing members reaches the opposing opening / closing member.

【０００３】冒頭に述べたタイプの断路器はドイツ特許
第３３ ４４ １７９号明細書により周知である。この
周知の断路器には半径方向に大きく延び、面積の広いシ
ールド電極がある。これにより、開閉過程で導入される
先導フレームが広がる領域の支配的な電界の半径成分の
強力な逆増幅率が抑制される。しかし、高電圧装置で要
求される電圧がシールド電極と接地された金属カプセル
の間に維持される必要があるので、周知の断路器の金属
カプセルの寸法は大きくなり不経済にならざるを得な
い。A disconnector of the type mentioned at the outset is known from DE 33 44 179. This known disconnector has a shield electrode that extends greatly in the radial direction and has a large area. As a result, the strong reverse amplification factor of the radial component of the dominant electric field in the region where the leading frame spreads during the opening / closing process is suppressed. However, since the voltage required by the high voltage device needs to be maintained between the shield electrode and the grounded metal capsule, the size of the metal capsule of the known disconnector has to be large and uneconomical. .

【０００４】[0004]

【発明が解決しようとする課題】この発明の課題は、半
径方向の寸法が小さくても、望ましくない横放電を大き
な確率で排除できる冒頭に述べたタイプの断路器を提供
することにある。SUMMARY OF THE INVENTION The object of the present invention is to provide a disconnector of the type mentioned at the outset, which has a high probability of eliminating undesired lateral discharges even with a small radial dimension.

【０００５】[0005]

【課題を解決するための手段】上記の課題は、この発明
により、冒頭に述べたタイプの断路器にあって、第一開
閉部材に設けてあるプレアーク電極の中空円筒状に形成
された接触部品が第一開閉部材の自由端に固定されてい
る１０以上の比誘電率の材料から成る絶縁スリーブで取
り囲まれ、この絶縁スリーブが断路器の開時に両方のプ
レアーク電極の間隔に比べて僅かに接触部品から突き出
ていることによって解決されている。SUMMARY OF THE INVENTION According to the present invention, the above object is to provide a disconnecting switch of the type mentioned at the outset in which a contact member formed in a hollow cylindrical shape of a pre-arc electrode provided on the first opening / closing member. There is surrounded by an insulating sleeve made of dielectric constant of the material of more than 10 which is fixed to the free end of the first closing member, both flop insulating sleeve during opening of the disconnector
It is solved by slightly protruding from the contact part compared to the spacing of the rare electrode .

【０００６】この発明による他の有利な構成は、特許請
求の範囲の従属請求項に記載されている。Other advantageous configurations according to the invention are described in the dependent claims.

【０００７】[0007]

【作用】この発明による断路器は、先導放電の空間的な
広がりを低減し、先導フレームを近軸領域に集中させる
分離幾何学形状を有する。それ故、半径方向に延び、横
放電となる先導フレームの分岐が生じる比較的小さな残
留リスクしかもはや存在しない。相応に、残留リスクが
同程度である場合は、張り出したシールド電極は過剰で
あるから、金属カプセルの寸法も小さくできる。The disconnector according to the invention has a separate geometry which reduces the spatial extent of the leading discharge and concentrates the leading frame in the paraxial region. Therefore, there is no longer a relatively small residual risk of the radially extending, leading frame divergence of the leading frame. Correspondingly, the size of the metal capsule can be reduced because the overhanging shield electrode is excessive when the residual risk is similar.

【０００８】[0008]

【実施例】以下に、この発明を好適実施例に基づきより
詳しく説明する。図１に示す断路器には、数バールの例
えばＳＦ６のような絶縁ガスを充填し、接地電位にされ
た軸線２の円管状の金属カプセル１がある。この金属カ
プセル１には、ほぼ円筒対称に形成され、軸２に沿って
相対的に移動する二つの開閉部材３，４が配設されてい
る。両方の開閉部材３，４は図示していない絶縁体に保
持され、それぞれ一つのシールド電極５，６を保有す
る。The present invention will be described in more detail below with reference to preferred embodiments. In the disconnector shown in FIG. 1 there is a cylindrical metal capsule 1 of axis 2 which is filled with an insulating gas such as SF6 of a few bars and brought to ground potential. The metal capsule 1 is provided with two opening / closing members 3 and 4 which are formed in substantially cylindrical symmetry and relatively move along the axis 2. Both opening / closing members 3 and 4 are held by an insulator (not shown), and each has one shield electrode 5 and 6.

【０００９】開閉部材３は固定配置され、シールド電極
５以外に、ピン状に形成され、しかも軸２に沿って延び
るプレアーク電極７を有する。開閉部材４に対向する自
由端では、プレアーク電極７が接触部品８を有し、この
部品は電気抵抗に関して適切な材料で形成されていると
有利である。シールド電極５は中空円筒状の中間室９を
形成してプレアーク電極７を同心状に取り囲み、軸方向
にプレアーク電極７とほぼ同じ程度に延びている。中間
室９を半径方向外向きに制限するシールド電極５の内面
上には接触部材１０が固定されている。The opening / closing member 3 is fixedly arranged and has, in addition to the shield electrode 5, a pre-arc electrode 7 formed in a pin shape and extending along the axis 2. At the free end facing the opening / closing member 4, the pre-arc electrode 7 has a contact part 8, which is advantageously made of a material which is suitable for electrical resistance. Shield electrode 5 surrounds the pre-arc electrode 7 forming the hollow cylindrical intermediate chamber 9 concentrically, and extends in the axial direction to an extent substantially the same as the pre-arcing electrode 7. A contact member 10 is fixed on the inner surface of the shield electrode 5 that limits the intermediate chamber 9 outward in the radial direction.

【００１０】開閉部材４には主に移動可能に配設された
部品がある。つまり、開閉部材４は図示していない駆動
部により軸方向に移動可能な円管状の接触担持体１１を
有する。開閉部材３に対向する接触担持体１１の端部に
はプレアーク電極１２が固定されている。この接触担持
体１１は同心状に配設された固定シールド電極６を通し
案内されている。接触担持体１１に向いた内面では、シ
ールド電極６が接触部材１３を担持している。この接触
部材１３はスライドするように接触担持体１１に接触し
ている。プレアーク電極１２は中空円筒状に形成された
接触部品１４と、この接触部品１４を同心状に取り囲
み、しかも絶縁スリーブ１５のホルダーとして働く突起
１６とを有する。The opening / closing member 4 mainly includes parts that are movably arranged. That is, the opening / closing member 4 has a circular tubular contact carrier 11 that can be moved in the axial direction by a drive unit (not shown). A pre-arc electrode 12 is fixed to the end of the contact carrier 11 facing the opening / closing member 3. The contact carrier 11 is guided through the fixed shield electrodes 6 arranged concentrically. On the inner surface facing the contact carrier 11, the shield electrode 6 carries the contact member 13. The contact member 13 is in sliding contact with the contact carrier 11. The pre-arc electrode 12 has a contact part 14 formed in the shape of a hollow cylinder, and a projection 16 that concentrically surrounds the contact part 14 and that also serves as a holder for the insulating sleeve 15.

【００１１】絶縁スリーブ１５は、本質的に比誘電率の
大きい材料で形成され、断路器が開いた場合の両方のプ
レアーク電極７，１２の間の間隔に比べて僅かではある
が、しかしながら少なくとも数ミリメートルは、プレア
ーク電極１２の自由端を超えて軸方向に突き出る。絶縁
スリーブ１５の比誘電率は一般に１０より大きく、好ま
しくは３０より大きい。[0011] The insulating sleeve 15 is formed with a large material essentially dielectric constant flop of both the case where the disconnector is opened
There is a slight compared to the spacing between the Reaku electrodes 7 and 12, however at least a few millimeters, Preah
Axially beyond the free end of the ark electrode 12. The dielectric constant of the insulating sleeve 15 is generally greater than 10, preferably greater than 30.

【００１２】プレアーク電極７以外に、プレアーク電極
１２も電気抵抗で決まる材料で形成されている。抵抗材
料は導電性のプラスチックであると有利である。このプ
ラスチックは絶縁スリーブ１５の材料と同じように、充
填された重合体であってもよい。プレアーク電極１２と
絶縁スリーブ１５の材料が同じ重合体を含めば、プレア
ーク電極１２の突起１６と絶縁スリーブ１５の間に特に
強固な機械的連結が行われ、大きな機械的な力が生じて
も、突起１６と絶縁スリーブ１５の境界面に望ましくな
い誘電的に重要な損傷を確実に防止できる。In addition to the pre- arc electrode 7, the pre-arc electrode 12 is also made of a material determined by electric resistance. Advantageously, the resistive material is a conductive plastic. This plastic, like the material of the insulating sleeve 15, may be a filled polymer. If the material of the pre-arcing electrode 12 and the insulating sleeve 15 including the same polymer, purpurea
There is a particularly strong mechanical connection between the protrusion 16 of the protective electrode 12 and the insulating sleeve 15, so that even if a large mechanical force is generated, the interface between the protrusion 16 and the insulating sleeve 15 is undesirably dielectrically important. It can prevent serious damage.

【００１３】プレアーク電極７やプレアーク電極１２お
よび絶縁スリーブ１５の材料の重合体としては、特にエ
ポキシおよびポリエステル樹脂のような熱硬化性樹脂お
よび特定のエラストマーや熱可塑性樹脂も適している。
絶縁スリーブの材料用の充填材として特に推奨できるの
は、バリウムチタン酸塩のようなチタン酸塩や二酸化チ
タンである。プレアーク電極７や１２の充填材は、特に
グラファイト、金属粒子のような導電性粒子や導電被膜
を付けたセラミックス粒子で形成できる。この場合、導
電性材料に対する充填材の成分は材料の比抵抗が最大で
１０12Ωｍとなる程度であると効果的である。特に適し
た材料は充填材として、例えば石英あるいはアルミナを
基材とした粒径が大体数μｍのセラミックス粉末粒子を
含む。これ等の粉末粒子には、例えば炭素やニッケルを
高温で付着させた導電層がある。硬化後の比抵抗が１０
10〜１０12Ωｍとなる材料で充分である。これは、材料
の充填材の残りの部分（例えばアルミナも含む）の導電
被覆されたアルミナの例えば５〜１０％の成分で達成で
きる。As the polymer of the material of the pre- arc electrode 7, pre-arc electrode 12 and insulating sleeve 15, thermosetting resins such as epoxy and polyester resins and specific elastomers and thermoplastic resins are also suitable.
Particularly recommended fillers for the material of the insulating sleeve are titanates such as barium titanate and titanium dioxide. The filler for the pre-arc electrodes 7 and 12 can be formed of conductive particles such as graphite and metal particles, or ceramic particles with a conductive coating, in particular. In this case, it is effective that the component of the filler with respect to the conductive material has a maximum specific resistance of 10 12 Ωm. Particularly suitable materials include, as fillers, for example, ceramic powder particles based on quartz or alumina and having a particle size of approximately a few μm. These powder particles have, for example, a conductive layer having carbon or nickel deposited at high temperature. The specific resistance after curing is 10
A material of 10 to 10 12 Ωm is sufficient. This can be achieved with, for example, 5 to 10% of the content of conductively coated alumina in the rest of the material filler (including alumina, for example).

【００１４】この発明による断路器は以下のように動作
する。投入時には、この断路器は図１の左半分に示す位
置にある。この位置では、接触担持体１１とプレアーク
電極１２がシールド電極５とプレアーク電極７で形成さ
れる中間室９の中に入っている。この位置では、電流は
シールド電極５から接触部材１０，接触担持体１１およ
び接触部材１３を経由してシールド電極６に流れる。The disconnector according to the invention operates as follows. At turn- on, this disconnector is in the position shown in the left half of FIG. In this position, the contact carrier 11 and the pre-arc
The electrode 12 is contained in an intermediate chamber 9 formed by the shield electrode 5 and the pre-arc electrode 7. At this position, current flows from the shield electrode 5 to the shield electrode 6 via the contact member 10, the contact carrier 11 and the contact member 13.

【００１５】この投入過程の際は、可動開閉部材４は図
示していない駆動部により断路器の遮断位置から上に向
けて、図１の右半分に示す位置に案内される。この位置
では、プレアーク電極１２の接触部品１４のところで先
導フレーム１７が生じることとなるような近さに、既に
両方の開閉部材３，４が互いに移動されている。接触部
品１４を中空円筒状に形成していることおよび絶縁スリ
ーブ１５の適当な配置と寸法によって、先導フレームの
発生位置で電界Ｅが最大になるだけでなく、半径方向に
内側に向かう成分も有する。従って、先導フレーム１７
の拡大が大幅に防止され、この先導フレーム１７が本質
的に軸線２に向けられる。During this closing process, the movable opening / closing member 4 is guided by a drive unit (not shown) upward from the shut-off position of the disconnector to the position shown in the right half of FIG. At this position, both opening and closing members 3, 4 have already been moved relative to each other such that the leading frame 17 will form at the contact piece 14 of the pre-arc electrode 12. Due to the hollow cylindrical design of the contact part 14 and the appropriate arrangement and dimensions of the insulating sleeve 15, not only the electric field E is maximized at the position of generation of the leading frame, but it also has a radially inward component. . Therefore, the leading frame 17
Is largely prevented and this leading frame 17 is essentially oriented on the axis 2.

【００１６】この場合、絶縁スリーブ１５の材料の比誘
電率の大きさが決定的な影響を及ぼす。比誘電率が１０
以上となるだけで、先導フレーム１７を顕著に内向きに
軸線２に向ける電界の影響が生じる。比誘電率が約３０
となると、既に、以後の先導フレームの放電が多大な確
実さで半径方向にシールドされたプレアーク電極７に捕
らえられるまでに、先導フレーム１７は狭めることがで
きる。プレアーク電極７の前方の電界は、このプレアー
ク電極をピン状に形成することによって、先導フレーム
の放電が大きな統計確率でそこで終わるように影響を受
けている。シールド電極５への偶発的な放電は完全に抑
制される。こうして、空間的な先導フレームの拡大は更
に制限され、シールド電極５，６の表面損傷が防止され
る。半径方向の横放電へと先導フレームが発現する危険
は全く著しく低減され、誘電的な分離特性の長期間安定
性が向上する。In this case, the magnitude of the relative permittivity of the material of the insulating sleeve 15 has a decisive influence. Relative permittivity is 10
Only by the above, the influence of the electric field that significantly directs the leading frame 17 inwardly toward the axis 2 occurs. Relative permittivity is about 30
Then, the leading frame 17 can be narrowed by the time when the subsequent discharge of the leading frame is already captured by the pre-arc electrode 7 shielded in the radial direction with great certainty. Front of the field of pre-arcing electrode 7, this Purea
By forming the electrode in the form of a pin, the discharge of the lead frame is affected so that it ends there with a high statistical probability. Accidental discharge to the shield electrode 5 is completely suppressed. In this way, the spatial expansion of the leading frame is further restricted and surface damage of the shield electrodes 5, 6 is prevented. The risk of the leading frame developing into a radial transverse discharge is significantly reduced and the long-term stability of the dielectric isolation properties is improved.

【００１７】プレアーク電極７と１２の間で点火する先
導フレーム放電は、断路器を含む高電圧装置の通常の運
転の下で、絶縁技術上望ましくないサージとなる。この
ようなサージは、両方の接触部品８，１４の少なくとも
一方を電気抵抗に関して適切な材料で形成することによ
り大幅に低減される。その場合、プレアーク電極１２全
体を導電性プラスチック、特に充填した重合体をベース
にしたプラスチックで形成すると特に有利である。何故
なら、その際、絶縁スリーブ１５をプレアーク電極１２
に特に有利に固定できるからである。The lead flame discharge igniting between the pre-arc electrodes 7 and 12 under normal operation of the high voltage device, including the disconnector, results in an undesired surge in insulation technology. Such surges are greatly reduced by forming at least one of the two contact parts 8, 14 with a material which is suitable with regard to electrical resistance. In that case, it is particularly advantageous if the entire pre-arc electrode 12 is made of a conductive plastic, in particular a filled polymer-based plastic. Because at that time, the insulating sleeve 15 is attached to the pre-arc electrode 12
This is because it can be fixed particularly advantageously.

【００１８】[0018]

【発明の効果】以上説明したように、この発明による金
属で封止されたガス絶縁高電圧装置の断路器を用いて、
半径方向の寸法が小さくても、望ましくない横放電を大
きな確率で排除できる。As described above, by using the disconnector of the gas-insulated high voltage device sealed with metal according to the present invention,
Even with small radial dimensions, unwanted lateral discharges can be eliminated with a high probability.

【図面の簡単な説明】[Brief description of drawings]

【図１】 断路器が左半分で投入状態にあり、右半分で
遮断途中であるこの発明の一実施例を示す。FIG. 1 shows an embodiment of the present invention in which the disconnector is in the closed state in the left half and is being interrupted in the right half.

【符号の説明】[Explanation of symbols]

１ 金属カプセル ２ 軸線 ３，４ 開閉部材 ５，６ シールド電極 ７，１２ プレアーク電極 ８，１４ 接触部品 ９ 中間室 １０，１３ 接触部材 １１ 接触担持体 １５ 絶縁スリーブ １６ 突起1 Metal Capsule 2 Axis 3,4 Opening / Closing Member 5,6 Shield Electrode 7,12 Pre- arc Electrode 8,14 Contact Part 9 Intermediate Chamber 10,13 Contact Member 11 Contact Carrier 15 Insulation Sleeve 16 Protrusion

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭49−7762（ＪＰ，Ａ) 特開 昭53−96476（ＪＰ，Ａ) 特開 昭55−59613（ＪＰ，Ａ) 特開 昭60−72119（ＪＰ，Ａ) 特開 昭60−189123（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 33/12 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-49-7762 (JP, A) JP-A-53-96476 (JP, A) JP-A-55-59613 (JP, A) JP-A-60- 72119 (JP, A) JP 60-189123 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01H 33/12

Claims (7)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 軸線（２）上を相対的に移動し、それぞ
れ一つのシールド電極（５，６）を有し、開閉過程で軸
線（２）に保持されるそれぞれ一つのプレアーク電極
（７，１２）を有する二つの開閉部材（３，４）を備
え、両方の開閉部材（３，４）の第一開閉部材（４）に
設けたプレアーク電極（１２）が軸方向に移動可能に配
置され、中空円筒状に形成されている金属で封止された
ガス絶縁高電圧装置の断路器において、第一開閉部材
（４）に設けてあるプレアーク電極（１２）の中空円筒
状に形成された接触部品（１４）が第一開閉部材（４）
の自由端に固定されている１０以上の比誘電率の材料か
ら成る絶縁スリーブ（１５）で取り囲まれ、この絶縁ス
リーブが断路器の開時に両方のプレアーク電極（７，１
２）の間隔に比べて僅かに接触部品（１４）から突き出
ていることを特徴とする断路器。1. A relative movement on the axis (2), each of which
It has one shield electrode (5, 6), and the shaft is opened and closed during the opening and closing process.
One each held on line (2)Pre-arc electrode
Provided with two opening / closing members (3, 4) having (7, 12)
The first opening / closing member (4) of both opening / closing members (3, 4)
ProvidedPre-arc electrode(12) is arranged so that it can move in the axial direction.
Placed and sealed with metal that is formed into a hollow cylinder
In a disconnector of a gas-insulated high-voltage device, a first opening / closing member
It is provided in (4)Pre-arc electrode(12) Hollow cylinder
The contact member (14) formed in the shape of a ring is the first opening / closing member (4).
Material with a relative permittivity of 10 or more fixed to the free end of
Surrounded by an insulating sleeve (15) consisting of
Leaves both when the disconnector opensPre-arc electrode(7,1
Slightly protruding from the contact part (14) compared to the interval of 2)
A disconnector characterized in that 【請求項２】 第一開閉部材（４）に設けてあるプレア
ーク電極（１２）の接触部品（１４）か、あるいは二つ
の開閉部材（３，４）の第二開閉部材（３）のプレアー
ク電極（７）の自由端に設けた接触部品（８）は少なく
とも電気抵抗に関して適切な材料で形成されているこ
と、及び前記の抵抗材料は導電性プラスチックであるこ
とを特徴とする請求項１に記載の断路器。2. A pliers provided on the first opening / closing member (4).
Contact elements (14) of the over-click electrode (12), or Purea the two second opening and closing member opening and closing section (3, 4) (3)
The contact element (8) provided at the free end of the electrode (7) is made of at least a suitable material for electrical resistance, and the resistive material is a conductive plastic. The disconnector described in. 【請求項３】 両方のプレアーク電極（７，１２）の少
なくとも一方および絶縁スリーブ（１５）の材料は充填
された重合体であることを特徴とする請求項２に記載の
断路器。3. The disconnector according to claim 2, characterized in that the material of at least one of the two pre-arc electrodes (7, 12) and the insulating sleeve (15) is a filled polymer. 【請求項４】 少なくとも一方のプレアーク電極（７，
１２）と絶縁スリーブ（１５）の材料は同じ重合体であ
ることを特徴とする請求項３に記載の断路器。4. At least one pre-arc electrode (7,
4. Disconnector according to claim 3, characterized in that the material of 12) and the insulating sleeve (15) are the same polymer. 【請求項５】 少なくとも一方のプレアーク電極（７，
１２）は対応する接触部品（８，１４）を同心状に取り
囲み、絶縁スリーブ（１５）のホルダーとして働く突起
（１６）を有することを特徴とする請求項３または４に
記載の断路器。5. At least one pre-arc electrode (7,
Disconnector according to claim 3 or 4, characterized in that 12) has a projection (16) concentrically surrounding the corresponding contact piece (8, 14) and serving as a holder for the insulating sleeve (15). 【請求項６】 絶縁スリーブ（１５）の充填材は少なく
ともチタン酸塩および／または二酸化チタンを有するこ
とを特徴とする請求項３〜５の何れか１項に記載の断路
器。6. Disconnector according to claim 3, characterized in that the filling material of the insulating sleeve (15) comprises at least titanate and / or titanium dioxide. 【請求項７】 少なくとも一方のプレアーク電極（７，
１２）の充填材は導電性粒子および／または導電被膜を
付けたセラミックス粉末を有することを特徴とする請求
項３〜６の何れか１項に記載の断路器。7. At least one pre-arc electrode (7,
The disconnecting switch according to any one of claims 3 to 6, wherein the filler of 12) has a ceramic powder having conductive particles and / or a conductive coating.
JP00531893A 1992-02-15 1993-01-14 Disconnector for gas-insulated high-voltage equipment sealed with metal Expired - Fee Related JP3424950B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4204529:0 1992-02-15
DE4204529A DE4204529A1 (en) 1992-02-15 1992-02-15 DISCONNECTOR FOR A METAL-ENCLOSED GAS-INSULATED HIGH-VOLTAGE SYSTEM

Publications (2)

Publication Number Publication Date
JPH05282968A JPH05282968A (en) 1993-10-29
JP3424950B2 true JP3424950B2 (en) 2003-07-07

Family

ID=6451774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP00531893A Expired - Fee Related JP3424950B2 (en) 1992-02-15 1993-01-14 Disconnector for gas-insulated high-voltage equipment sealed with metal

Country Status (3)

Country Link
EP (1) EP0556478B2 (en)
JP (1) JP3424950B2 (en)
DE (2) DE4204529A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543815A1 (en) 1995-11-24 1997-05-28 Asea Brown Boveri Electrical switching device
JP5188176B2 (en) * 2007-12-28 2013-04-24 三菱電機株式会社 Ground switch
CN102437512B (en) * 2011-09-09 2013-02-13 华中科技大学 Gas switch
EP3951819A1 (en) * 2020-08-04 2022-02-09 ABB Schweiz AG Field grading electrode

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6601558U (en) * 1964-06-13 1969-03-20 Calor Emag Elektrizitaets Ag VOLTAGE DISCONNECTOR
JPS5559613A (en) * 1978-10-30 1980-05-06 Tokyo Shibaura Electric Co Gas breaker
FR2476381B1 (en) * 1980-02-16 1985-10-25 Hitachi Ltd GAS INSULATED DISCONNECTOR
JPS5740225U (en) * 1980-08-18 1982-03-04
US4488021A (en) * 1981-11-12 1984-12-11 Mitsubishi Denki Kabushiki Kaisha Gas insulated disconnector
DE3938711A1 (en) * 1989-11-17 1991-05-23 Siemens Ag DISCONNECTOR FOR METAL-ENCLOSED, PRESSURE-GAS INSULATED HIGH-VOLTAGE SWITCHGEAR

Also Published As

Publication number Publication date
EP0556478B2 (en) 1999-01-27
DE59205907D1 (en) 1996-05-09
EP0556478B1 (en) 1996-04-03
JPH05282968A (en) 1993-10-29
EP0556478A1 (en) 1993-08-25
DE4204529A1 (en) 1993-08-19

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