JPH1080026A - Insulating spacer - Google Patents
Insulating spacerInfo
- Publication number
- JPH1080026A JPH1080026A JP8248732A JP24873296A JPH1080026A JP H1080026 A JPH1080026 A JP H1080026A JP 8248732 A JP8248732 A JP 8248732A JP 24873296 A JP24873296 A JP 24873296A JP H1080026 A JPH1080026 A JP H1080026A
- Authority
- JP
- Japan
- Prior art keywords
- metal ring
- metal
- resin
- dovetail groove
- mold
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/066—Devices for maintaining distance between conductor and enclosure
Landscapes
- Gas-Insulated Switchgears (AREA)
- Insulating Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、筒状金属容器内に
充電部導体を絶縁支持するために使用されるスペ−サに
関し、特に、ガス絶縁開閉装置での充電部導体の絶縁支
持に有用なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer used for insulating and supporting a charging part conductor in a cylindrical metal container, and is particularly useful for insulating and supporting the charging part conductor in a gas insulated switchgear. It is something.
【０００２】[0002]
【従来の技術】ガス絶縁開閉装置においては、開閉装置
の構成機器、すなわち、母線、遮断器、断路器、避雷器
等の機器の充電部を円筒状の接地金属容器の中央に配
し、その充電部を長さ方向に所定の間隔にて絶縁スペ−
サで支持し、円筒状接地金属容器内をＳＦ6等の絶縁特
性に優れたガスで充満加圧している。図４はガス絶縁開
閉装置における相分離型の断路器・接地開閉器部の一例
を示し、先端に接地開閉器固定接触子４１を有する導体
棒４２を絶縁スペ−サａ1で支持し、先端に主固定接触
子５１を有する導体棒５２を絶縁スペ−サａ2で支持
し、主可動接触子５３及び接地開閉器側可動接触子４３
をそれぞれ外部から直線運動可能に設け、主可動接触子
５３を導体棒４２に直角方向から摺動可能に挿通し、円
筒状接地金属容器６内にＳＦ6ガスを充満加圧し、主可
動接触子５３の外部操作で断路を行い、この断路状態の
もとで接地開閉器側可動接触子４３を外部操作で接地開
閉器固定接触子４１にコンタクトしてケ−ブル線路を接
地可能としている。2. Description of the Related Art In a gas insulated switchgear, the components of the switchgear, that is, the charging section of the busbar, circuit breaker, disconnector, lightning arrestor, and other devices are arranged in the center of a cylindrical grounded metal container and charged. Space at predetermined intervals in the length direction.
Supported by support, and pressure filling pressure to the cylindrical ground metal container with excellent gas insulation characteristics such as SF 6. Figure 4 shows an example of a disconnector-grounding switch portion of the phase-separated in the gas insulated switchgear, the conductive rod 42 having a grounding switch fixed contact 41 to the tip insulating space - supported by the support a 1, the tip the conductor rod 52 having a main fixed contact 51 in the insulating space - is supported by support a 2, a main movable contact 53 and the grounding switch movable contact 43
Are provided so as to be able to linearly move from the outside, and the main movable contact 53 is slidably inserted into the conductor rod 42 in a direction perpendicular to the conductor bar 42, and the cylindrical grounded metal container 6 is filled with SF 6 gas and pressurized. The disconnection is carried out by an external operation of 53, and in this disconnected state, the grounding switch side movable contact 43 is brought into contact with the grounding switch fixed contact 41 by an external operation so that the cable line can be grounded.
【０００３】図５の（イ）はガス絶縁開閉装置における
絶縁スペ−サを示し、内周面に沿って凹溝１１’を有す
る金属リング１’の中央に充電部接続用金具２’を配
し、金属リング１’と充電部接続用金具２’との間に熱
硬化樹脂組成物３’を層状に注型成形し、樹脂隔壁部
３’の外周各側面にパッキング装着溝３１’を設けてあ
り、接地金属容器への固定には、図５の（ロ）に示すよ
うに、樹脂層３’の外周各側面と各金属容器端フランジ
６１との間にそれぞれパッキング６２を装着し、両金属
容器端フランジ６１，６１間に金属リング１’をボルト
締めする構造を使用している。FIG. 5A shows an insulation spacer in a gas insulated switchgear, in which a metal part 1 'for connecting a charged part is disposed at the center of a metal ring 1' having a concave groove 11 'along the inner peripheral surface. Then, the thermosetting resin composition 3 ′ is cast into a layer between the metal ring 1 ′ and the metal fitting 2 ′ for connecting the charging section, and a packing mounting groove 31 ′ is provided on each side of the outer periphery of the resin partition 3 ′. For fixing to the grounded metal container, as shown in FIG. 5B, packings 62 are attached between the outer peripheral side surfaces of the resin layer 3 ′ and the metal container end flanges 61, respectively. A structure in which the metal ring 1 'is bolted between the metal container end flanges 61, 61 is used.
【０００４】この絶縁スペ−サの成形には、上記金属リ
ング及び充電部接続用金具を割れ金型内にセットし、そ
の金属リングと充電部接続用金具との間の空間にガス抜
きを行いつつ熱硬化樹脂液を注入し、樹脂液のチャ−ジ
後、金型を加熱炉に搬入し、樹脂を加熱硬化させ、次い
で炉外に取り出したうえ脱型する、所謂、注型法が使用
されている。しかしながら、注型法では、樹脂の熱収縮
率が金属の熱収縮率に較べて相当に大であるので、樹脂
硬化のために加熱した後、冷却する際、金属リングに較
べて樹脂が相当に大きく熱収縮し、この収縮に硬化収縮
も重なって、金属リングと硬化樹脂層との界面が剥離し
てギャップの発生が余儀なくされる。[0004] To form the insulating spacer, the metal ring and the charging portion connection metal fitting are set in a cracking mold, and the space between the metal ring and the charging portion connection metal fitting is vented. A so-called casting method is used in which a thermosetting resin liquid is injected while charging the resin liquid, the mold is carried into a heating furnace, the resin is heated and cured, and then taken out of the furnace and removed from the mold. Have been. However, in the casting method, the heat shrinkage of the resin is considerably larger than the heat shrinkage of the metal. Heat shrinks greatly, and this shrinkage also overlaps with hardening shrinkage, and the interface between the metal ring and the hardened resin layer peels off, forcing the generation of a gap.
【０００５】而して、樹脂層が金属リングに対し周方向
に可動となって周方向位置決め規制が不可となり、ガス
絶縁開閉装置の組立てに支障が生じる。かかる不具合を
排除するために、金属リングの凹溝底面にくぼみを設
け、樹脂層の外周にこのくぼみに係止する突起部を成形
し、周方向回転に対し突起部をくぼみに係止させて廻り
止めとしての機能を営ませることが提案されている（特
公平７−９９８８８号公報）。[0005] Thus, the resin layer is movable in the circumferential direction with respect to the metal ring, so that the positioning in the circumferential direction cannot be restricted, which hinders the assembly of the gas insulated switchgear. In order to eliminate such inconvenience, a recess is provided on the bottom surface of the concave groove of the metal ring, and a protrusion is formed on the outer periphery of the resin layer to be locked in the recess, and the protrusion is locked in the recess with respect to the rotation in the circumferential direction. It has been proposed to perform a function as a detent (Japanese Patent Publication No. 7-99888).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、この廻
り止め構造においても、金属リングの全周にわたり金属
リングと樹脂層との間にギャップが発生し、このギャッ
プ内での周方向及び半径方向ずれが避けられないから、
充電部に対する位置決め精度には、このギャップに基づ
くずれのために限度がある。従って、図４において、固
定接触子４１，５１の接地金属容器６内での位置に、こ
の限度内でずれが生じ、可動接触子４３，５３が固定接
触子４１，５１に偏芯状態でコンタクトされて可動接触
子のコンタク操作に支障となる畏れがある。特に、三相
一括型の場合、絶縁スペ−サの中心と各相充電部接続金
具の中心とが一致せず、その間の距離をａとすると、上
記ギャップに基づく周方向ずれ角Δθが各相充電部接続
金具の中心を距離ａΔθで周方向にずらせる結果、各相
可動接触子の中心に対する各相固定接触子の中心のずれ
が著しく大きくなって、各相可動接触子の各相固定接触
子へのコンタクトが不能となる畏れもある。更に、三相
一括型の場合、各相充電部が通電電流に基づき周波数が
電流周波数の２倍の交番電磁力を受け、上記ギャップ内
でスペ−サの樹脂層が振動して騒音原因になる畏れもあ
る。However, even in this detent structure, a gap is formed between the metal ring and the resin layer over the entire circumference of the metal ring, and the gap in the circumferential and radial directions within this gap is reduced. Because it is inevitable,
The positioning accuracy with respect to the charged part has a limit due to the displacement based on the gap. Therefore, in FIG. 4, the positions of the fixed contacts 41 and 51 in the grounded metal container 6 are shifted within this limit, and the movable contacts 43 and 53 are eccentrically contacted with the fixed contacts 41 and 51. There is a fear that the contact operation of the movable contact may be hindered. In particular, in the case of the three-phase package type, the center of the insulating spacer does not coincide with the center of each phase connecting part fitting. As a result of displacing the center of the charger connection fitting in the circumferential direction by the distance aΔθ, the deviation of the center of each phase fixed contact from the center of each phase movable contact becomes significantly large, and the phase fixed contact of each phase movable contact There is a fear that contact with the child may not be possible. Furthermore, in the case of the three-phase batch type, each phase charging unit receives an alternating electromagnetic force having a frequency twice the current frequency based on the supplied current, and the resin layer of the spacer vibrates in the gap to cause noise. There is fear.
【０００７】本発明の目的は、内周面に沿って凹溝を有
する金属リング内に充電部導体接続用金具が配設され、
この金具と金属リングとの間に熱硬化樹脂組成物層が注
型された絶縁スペ−サにおいて、該樹脂組成物層の注型
時収縮により金属リングの内周面と樹脂組成物層との間
にギャツプが存在しても、がたを排除してガス絶縁開閉
装置の組立てを高寸法精度で行い得てガス絶縁開閉装置
の断路器部での固定接触子への可動接触子の確実なコン
タクトを保証できる絶縁スペ−サを提供することにあ
る。[0007] An object of the present invention is to provide a live part connecting metal fitting in a metal ring having a concave groove along the inner peripheral surface,
In the insulating spacer in which the thermosetting resin composition layer is cast between the metal fitting and the metal ring, the inner peripheral surface of the metal ring and the resin composition layer are shrunk by the shrinkage of the resin composition layer at the time of casting. Even if there is a gap between them, it is possible to assemble the gas insulated switchgear with high dimensional accuracy by eliminating the backlash, and to ensure that the movable contact to the fixed contact at the disconnector part of the gas insulated switchgear. An object of the present invention is to provide an insulating spacer capable of guaranteeing a contact.
【０００８】[0008]
【課題を解決するための手段】本発明に係る絶縁スペ−
サは、筒状金属容器内に充電部導体を絶縁支持するのに
使用されるスペ−サであり、内面の両側面がテ−パ面の
蟻溝が金属リングの内周面に沿って設けられ、この金属
リング内に充電部導体接続用金具が配設され、この金具
と上記金属リングとの間に熱硬化樹脂組成物層が注型さ
れ、該樹脂組成物層の注型時収縮により金属リングの蟻
溝に樹脂組成物層外周部が咬持されていることを特徴と
する構成であり、金属リングの半径方向線に対する蟻溝
内テ−パ面の角度は、通常３°〜２０°とされる。According to the present invention, there is provided an insulating space according to the present invention.
The spacer is a spacer used to insulate and support the charging part conductor in the cylindrical metal container, and both side surfaces of the inner surface are provided with dovetail grooves of the taper surface along the inner peripheral surface of the metal ring. A metal part for connecting a charged part conductor is provided in the metal ring, a thermosetting resin composition layer is cast between the metal part and the metal ring, and the resin composition layer shrinks during casting. The outer periphery of the resin composition layer is bitten by the dovetail groove of the metal ring, and the angle of the taper surface in the dovetail groove to the radial line of the metal ring is usually 3 ° to 20 °. °.
【０００９】[0009]
【発明の実施の形態】以下、図面を参照しつつ本発明の
実施の形態について説明する。図１の（イ）は本発明に
係る絶縁スペ−サの一例を示す側面図、図１の（ロ）は
図１の（イ）におけるロ−ロ断面図、図１の（ハ）は図
１の（ロ）における点線枠内の拡大図である。図１の
（イ）及び図１の（ロ）において、１は金属リングであ
り、内周面に沿って蟻溝１１が設けられている。図１の
（ハ）に示すように、この蟻溝１１内面におけるテ−パ
側面１１１と金属リング１の半径方向線Ｒ−Ｒとの間の
角度(図における角度α)は、後述するように、通常３°
〜２０°とされる。１２は金属リング１に穿設された樹
脂流路孔、１３，…はボルト挿通用孔である。２は充電
部導体接続用金具であり、該金具２の中心は金属リング
１の中心に実質的に一致されている。３は金属リング１
と充電部導体接続用金具２との間に注型された熱硬化樹
脂組成物層であり、後述するように、注型時収縮により
金属リングの蟻溝底面及び蟻溝外の内周面と樹脂組成物
層との界面が剥離されているが、蟻溝内のテ−パ側面に
樹脂組成物層外周部が咬持されている。３１は樹脂組成
物層３の両側面の外周近傍に形成されたパッキング装着
溝である。Embodiments of the present invention will be described below with reference to the drawings. 1A is a side view showing an example of the insulating spacer according to the present invention, FIG. 1B is a cross-sectional view of FIG. 1A, and FIG. It is an enlarged view in the dotted frame in (b) of FIG. In FIG. 1A and FIG. 1B, reference numeral 1 denotes a metal ring, and a dovetail groove 11 is provided along the inner peripheral surface. As shown in FIG. 1C, the angle (the angle α in the figure) between the taper side surface 111 on the inner surface of the dovetail groove 11 and the radial line RR of the metal ring 1 is as described later. , Usually 3 °
２０20 °. Reference numeral 12 denotes a resin flow passage hole formed in the metal ring 1, and reference numerals 13, ... denote bolt insertion holes. Reference numeral 2 denotes a metal fitting for connecting the charging portion conductor, and the center of the metal fitting 2 substantially coincides with the center of the metal ring 1. 3 is a metal ring
A thermosetting resin composition layer cast between the metal ring and the charging part conductor connection fitting 2, and as described later, the metal ring has a dovetail bottom surface and an inner peripheral surface outside the dovetail groove due to shrinkage during casting. Although the interface with the resin composition layer has been peeled off, the outer periphery of the resin composition layer is bitten on the side surface of the tape in the dovetail groove. Reference numeral 31 denotes a packing mounting groove formed near the outer periphery of both side surfaces of the resin composition layer 3.
【００１０】図１に示された絶縁スペ−サは、三相各相
のそれぞれに対し、各筒状金属容器内に一本の充電部導
体を絶縁支持する場合に使用される。三相一括型で充電
部導体を絶縁支持する場合は、図２に示すように、各相
充電部導体接続用金具２が正三角形で、その正三角形中
心が金属リング１の中心に実質的に一致されるように配
設される。The insulating spacer shown in FIG. 1 is used when one charging conductor is insulated and supported in each cylindrical metal container for each of the three phases. In the case where the charging section conductors are insulated and supported in a three-phase batch type, as shown in FIG. 2, each phase charging section conductor connection fitting 2 is an equilateral triangle, and the center of the equilateral triangle is substantially at the center of the metal ring 1. Arranged to be coincident.
【００１１】上記金属リング１の半径方向線に対する蟻
溝内テ−パ面の角度αを余り大きくすると、後述するよ
うに注型時収縮に熱硬化樹脂層外周部に作用する引張り
応力が過大となり、樹脂クラックの発生が懸念されるの
で、蟻溝内テ−パ面の角度αは、通常３°〜２０°とさ
れる。上記金属リング１には、銅、アルミニウム、鋼ま
たは各金属の合金等を使用でき、充電部導体接続用金具
２には、銅、アルミニウム等を使用できる。上記熱硬化
樹脂組成物には、エポキシ樹脂を使用でき、通常、アル
ミナ粉末、シリカ粉末、炭酸カルシウム粉末等のフィラ
−が添加される。If the angle α of the tapered surface in the dovetail groove with respect to the radial line of the metal ring 1 is too large, the tensile stress acting on the outer periphery of the thermosetting resin layer due to shrinkage during casting becomes excessive, as will be described later. Since the occurrence of resin cracks is a concern, the angle α of the tapered face in the dovetail groove is usually set to 3 ° to 20 °. The metal ring 1 can be made of copper, aluminum, steel, an alloy of each metal, or the like, and the charging part conductor connection fitting 2 can be made of copper, aluminum, or the like. An epoxy resin can be used in the thermosetting resin composition, and a filler such as an alumina powder, a silica powder, and a calcium carbonate powder is usually added.
【００１２】上記絶縁スペ−サは、通常、注型法により
製造される。例えば、図１の（ロ）において⇒方向から
閉じられる二つ割れ金型内に金属リングや接続用金具を
セットし、型を閉じたうえで縦向きに配置し、金型頂上
の樹脂注入口から上記金属リングの樹脂流路孔を経て減
圧によりエア−抜きを行ったうえでフィラ−添加液状樹
脂を注入し、金型加熱により樹脂を硬化し、而るのち、
離型することにより製造される。この場合、樹脂の熱収
縮率が金属の熱収縮率に較べて相当に大であるので、冷
却時、金属リングに較べて樹脂が相当に大きく熱収縮
し、この大なる収縮に硬化収縮も重なって、図３に示す
ように、金属リング１の蟻溝底面１１２と硬化樹脂層３
との界面及び金属リング１の蟻溝外内周面１１３と硬化
樹脂層３との界面が剥離されてギャップｇが発生するに
至る。The above-mentioned insulating spacer is usually manufactured by a casting method. For example, in FIG. 1 (b), a metal ring and a metal fitting are set in a two-piece mold that is closed from the direction, and the mold is closed and arranged vertically, and a resin injection port on the top of the mold is set. From the above, through a resin flow passage hole of the metal ring, air is evacuated by pressure reduction, and then a filler-added liquid resin is injected, and the resin is cured by heating the mold.
It is manufactured by demolding. In this case, the heat shrinkage of the resin is considerably larger than the heat shrinkage of the metal, so that upon cooling, the resin shrinks considerably more than the metal ring, and the hardening shrinkage overlaps with this large shrinkage. As shown in FIG. 3, the dovetail bottom 112 of the metal ring 1 and the cured resin layer 3
And the interface between the outer peripheral surface 113 of the dovetail groove of the metal ring 1 and the cured resin layer 3 are peeled off, and a gap g is generated.
【００１３】しかしながら、蟻溝１１内のテ−パ側面１
１１においては樹脂層３の半径方向収縮に対し圧力が作
用し、樹脂層外周部が蟻溝内面のテ−パ面１１１で咬持
されるから、樹脂層３に作用する任意の径方向力ｘに対
しては咬持点ｐにより移動が拘束され、その逆の径方向
力−ｘに対しては咬持点ｐ’により移動が拘束される。
更に、樹脂層３に作用する周方向力に対しては、蟻溝１
１内のテ−パ側面１１１に作用している圧力のために高
い摩擦力が保証され、周方向移動もよく拘束される。上
記において、金属リング１の樹脂流路孔〔図１の（イ）
における１２〕に樹脂を詰めるようにして樹脂の注入・
硬化を行えば、この詰め込み硬化樹脂にも上記の周方向
固定作用の一部を分担させることが期待できる。However, the taper side surface 1 in the dovetail groove 11
At 11, pressure acts on the resin layer 3 in radial contraction, and the outer peripheral portion of the resin layer is bitten by the tapered surface 111 on the inner surface of the dovetail groove. Is restricted by the gripping point p, and the opposite radial force −x is restricted by the gripping point p ′.
Further, when the circumferential force acting on the resin layer 3 is applied,
A high frictional force is ensured by the pressure acting on the taper side surface 111 in the inside 1, and circumferential movement is well restrained. In the above description, the resin flow passage hole of the metal ring 1 [(a) of FIG.
In step 12), inject the resin by packing the resin.
If the curing is performed, it can be expected that the stuffed cured resin also shares a part of the above-described circumferential fixing action.
【００１４】上記において、熱硬化樹脂層の半径方向収
縮が金属リングの蟻溝内面のテ−パ側面による咬持のみ
で拘束されるので、熱硬化樹脂層の全半径方向収縮力が
その咬持界面に作用する。而して、蟻溝内面の前記テ−
パ角度αを小にして蟻溝入口のコ−ナでの引張り応力の
集中を緩和することが有効である。しかし、蟻溝内面の
テ−パ角度を余り小にし過ぎると、上記の圧力が小とな
り、熱硬化樹脂層の半径方向収縮の拘束が期待できなく
なる。従って、蟻溝内面のテ−パ角度は、３°〜２０°
とすることが適切である。In the above, since the radial shrinkage of the thermosetting resin layer is restricted only by the biting of the inner surface of the dovetail groove of the metal ring by the taper side, the total radial shrinking force of the thermosetting resin layer is limited by the biting. Acts on interfaces. Thus, the tape on the inner surface of the dovetail
It is effective to reduce the par angle α to reduce the concentration of tensile stress at the corner of the dovetail entrance. However, if the taper angle on the inner surface of the dovetail groove is made too small, the above-mentioned pressure becomes small, and it is impossible to expect the contraction of the thermosetting resin layer in the radial direction. Therefore, the taper angle of the inner surface of the dovetail groove is 3 ° to 20 °.
Is appropriate.
【００１５】上記のギャツプに放電を惹起するような強
い電気ストレスが作用するのを防止するために、金属に
対しては離型性に優れ樹脂に対しては易接着性の導電性
塗料、例えば、金属粉末配合シリコ−ン樹脂液を金属リ
ングの内周面に塗布しておき、金属リング内周面から剥
離した樹脂層面に導電性樹脂膜を形成させることが可能
である。In order to prevent a strong electric stress such as causing an electric discharge from acting on the gap, a conductive paint having excellent releasability for metal and easy adhesion to resin, for example, Alternatively, a silicone resin solution containing a metal powder is applied to the inner peripheral surface of the metal ring, and a conductive resin film can be formed on the resin layer surface separated from the inner peripheral surface of the metal ring.
【００１６】本発明に係る絶縁スペ−サは、ガス絶縁開
閉装置の構成機器、すなわち、母線、遮断器、断路器等
の機器の充電部を円筒状の接地金属容器の中央に絶縁支
持する場合に使用される。また、管路気中送電線におけ
る、円筒状外部導体内への内部導体の絶縁支持にも使用
でき、この場合、ガス止め用のスペ−サを除き、樹脂層
には、ガスを流通させるための開口を設けることができ
る。The insulating spacer according to the present invention is used for a case in which the components of a gas insulated switchgear, that is, the charging portion of a device such as a bus, a circuit breaker, and a disconnector is insulated and supported at the center of a cylindrical grounded metal container. Used for It can also be used to insulate and support the inner conductor in the cylindrical outer conductor in a pipeline air transmission line. In this case, except for the spacer for stopping the gas, the resin layer is used to flow gas. Openings can be provided.
【００１７】[0017]
【発明の効果】本発明に係る絶縁スペ−サにおいては、
金属リングと熱硬化樹脂層との界面でのギャップの発生
にもかかわらず、熱硬化樹脂層を金属リング内周の蟻溝
に咬持させてその間をがたつきなく安定に保持している
から、熱硬化樹脂層中央の充電部導体接続用金具を高精
度で位置決めでき、ガス絶縁開閉装置における断路器・
接地開閉器部の固定接触子への可動接触子のコンタクト
を円滑に行い得る。また、熱硬化樹脂層をがたなく保持
できるために、充電部導体接続用金具に作用する交番電
磁力で騒音が発生するのを排除できる。In the insulating spacer according to the present invention,
Despite the occurrence of a gap at the interface between the metal ring and the thermosetting resin layer, the thermosetting resin layer is stably held without rattling between the dovetail grooves on the inner circumference of the metal ring. In addition, the metal part for connecting the conductor of the charged part at the center of the thermosetting resin layer can be positioned with high precision,
The contact of the movable contact to the fixed contact of the grounding switch can be smoothly performed. Further, since the thermosetting resin layer can be held without play, generation of noise due to the alternating electromagnetic force acting on the metal fitting for connecting the charged portion conductor can be eliminated.
【図１】FIG.
【図１】図１の（イ）は本発明に係る絶縁スペ−サの一
例を示す側面図、図１の（ロ）は図１の（イ）における
ロ−ロ断面図、図１の（ハ）は図１の（ロ）における点
線枠内の拡大図である。FIG. 1A is a side view showing an example of an insulating spacer according to the present invention, FIG. 1B is a cross-sectional view taken along a line in FIG. 1A, and FIG. (C) is an enlarged view in a dotted frame in (b) of FIG.
【図２】本発明に係る絶縁スペ−サの別例を示す側面図
である。FIG. 2 is a side view showing another example of the insulating spacer according to the present invention.
【図３】本発明に係る絶縁スペ−サにおける金属リング
の蟻溝の熱硬化樹脂層に対する咬持状態を示す説明図で
ある。FIG. 3 is an explanatory view showing a state in which a dovetail groove of a metal ring is held by a thermosetting resin layer in an insulating spacer according to the present invention.
【図４】ガス絶縁開閉装置における断路器・接地開閉器
部の一例を示す説明図である。FIG. 4 is an explanatory diagram showing an example of a disconnector / grounding switch unit in the gas insulated switchgear.
【図５】従来の絶縁スペ−サを示す説明図である。FIG. 5 is an explanatory view showing a conventional insulating spacer.
１ 金属リング １１ 蟻溝 ２ 充電部導体接続用金具 ３ 熱硬化性樹脂組成物層 DESCRIPTION OF SYMBOLS 1 Metal ring 11 Dovetail 2 Charger conductor connection fitting 3 Thermosetting resin composition layer
【手続補正書】[Procedure amendment]
【提出日】平成８年１０月１８日[Submission date] October 18, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Correction target item name] Brief description of drawings
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図面の簡単な説明】[Brief description of the drawings]
【図１】図１の（イ）は本発明に係る絶縁スペーサの一
例を示す側面図、図１の（ロ）は図１の（イ）における
ローロ断面図、図１の（ハ）は図１の（ロ）における点
線枠内の拡大図である。FIG. 1A is a side view showing an example of an insulating spacer according to the present invention, FIG. 1B is a cross-sectional view of the roll in FIG. 1A, and FIG. It is an enlarged view in the dotted frame in (b) of FIG.
【図２】本発明に係る絶縁スペーサの別例を示す側面図
である。FIG. 2 is a side view showing another example of the insulating spacer according to the present invention.
【図３】本発明に係る絶縁スペーサにおける金属リング
の蟻溝の熱硬化樹脂層に対する咬持状態を示す説明図で
ある。FIG. 3 is an explanatory view showing a state in which the dovetail groove of the metal ring in the insulating spacer according to the present invention is engaged with the thermosetting resin layer.
【図４】ガス絶縁開閉装置における断路器・接地開閉器
部の一例を示す説明図である。FIG. 4 is an explanatory diagram showing an example of a disconnector / grounding switch unit in the gas insulated switchgear.
【図５】従来の絶縁スペーサを示す説明図である。FIG. 5 is an explanatory view showing a conventional insulating spacer.
【符号の説明】 １ 金属リング １１ 蟻溝 ２ 充電部導体接続用金具 ３ 熱硬化性樹脂組成物層[Description of Signs] 1 Metal ring 11 Dovetail 2 Charging part conductor connection fitting 3 Thermosetting resin composition layer
Claims (2)
るために使用されるスペ−サであり、内面の両側面がテ
−パ面の蟻溝が金属リングの内周面に沿って設けられ、
この金属リング内に充電部導体接続用金具が配設され、
この金具と上記金属リングとの間に熱硬化樹脂組成物層
が注型され、該樹脂組成物層の注型時収縮により金属リ
ングの蟻溝に樹脂組成物層外周部が咬持されていること
を特徴とする絶縁スペ−サ。1. A spacer used to insulate and support a charged part conductor in a cylindrical metal container, and a dovetail groove formed on both sides of the inner surface along a tapered surface along an inner peripheral surface of the metal ring. Provided
A metal part for connecting the live part conductor is arranged in the metal ring,
A thermosetting resin composition layer is cast between the metal fitting and the metal ring, and the outer periphery of the resin composition layer is bitten by a dovetail groove of the metal ring due to shrinkage of the resin composition layer during casting. An insulating spacer characterized by the above.
−パ面の角度が３°〜２０°である請求項１記載の絶縁
スペ−サ。2. The insulating spacer according to claim 1, wherein an angle of the tapered surface in the dovetail groove with respect to a radial line of the metal ring is 3 ° to 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8248732A JPH1080026A (en) | 1996-08-30 | 1996-08-30 | Insulating spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8248732A JPH1080026A (en) | 1996-08-30 | 1996-08-30 | Insulating spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1080026A true JPH1080026A (en) | 1998-03-24 |
Family
ID=17182539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8248732A Pending JPH1080026A (en) | 1996-08-30 | 1996-08-30 | Insulating spacer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1080026A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1394919A2 (en) * | 2002-08-28 | 2004-03-03 | Siemens Aktiengesellschaft | Insulation disc with symmetrical outer contour |
| JP2016059945A (en) * | 2014-09-18 | 2016-04-25 | 株式会社神戸製鋼所 | Hot forging device |
-
1996
- 1996-08-30 JP JP8248732A patent/JPH1080026A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1394919A2 (en) * | 2002-08-28 | 2004-03-03 | Siemens Aktiengesellschaft | Insulation disc with symmetrical outer contour |
| EP1394919A3 (en) * | 2002-08-28 | 2005-09-07 | Siemens Aktiengesellschaft | Insulation disc with symmetrical outer contour |
| JP2016059945A (en) * | 2014-09-18 | 2016-04-25 | 株式会社神戸製鋼所 | Hot forging device |
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