JPH027816A - Insulation supporting body - Google Patents
Insulation supporting bodyInfo
- Publication number
- JPH027816A JPH027816A JP63151788A JP15178888A JPH027816A JP H027816 A JPH027816 A JP H027816A JP 63151788 A JP63151788 A JP 63151788A JP 15178888 A JP15178888 A JP 15178888A JP H027816 A JPH027816 A JP H027816A
- Authority
- JP
- Japan
- Prior art keywords
- insulating
- ceramic
- resin
- insulating support
- zirconia
- 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
- 238000009413 insulation Methods 0.000 title description 4
- 239000000919 ceramic Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 abstract description 16
- 239000011347 resin Substances 0.000 abstract description 16
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 14
- 125000006850 spacer group Chemical group 0.000 abstract description 12
- 239000004020 conductor Substances 0.000 abstract description 7
- 239000003822 epoxy resin Substances 0.000 abstract description 5
- 229920000647 polyepoxide Polymers 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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
- H02G5/068—Devices for maintaining distance between conductor and enclosure being part of the junction between two enclosures
Landscapes
- Installation Of Bus-Bars (AREA)
- 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、ガス絶縁開閉装置等のガス絶縁電気機器に
用いられる絶縁スペーサ等の絶縁支持体に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an insulating support such as an insulating spacer used in gas-insulated electrical equipment such as a gas-insulated switchgear.
ガス絶縁開閉装置等のガス絶縁電気機器に用いられる絶
縁支持体は、多くの場合、エポキシ樹脂等の合成樹脂に
よって構成される。而して、この皿絶縁支持体はその取
付のために穿孔或はタップ加工が必要となるが、一般に
は樹脂の脆性がら樹脂材に直接このような加工を施すこ
とはなく、予め加工が施されたアルミニウム又は黄銅等
の金属を鋳型時に同時に埋め込まれる。また絶縁スペー
サ等ではこれらの取付は金具の外に母線の１部となる導
体も同様に埋め込まれる等、合成樹脂からなる絶縁支持
体では樹脂に金属を埋め込む場合が多くある。Insulating supports used in gas-insulated electrical equipment such as gas-insulated switchgear are often made of synthetic resin such as epoxy resin. Therefore, this plate insulating support requires drilling or tapping for installation, but generally, such processing is not performed directly on the resin material due to the brittleness of the resin, and the processing is performed in advance. Metals such as aluminum or brass are embedded in the mold at the same time. Furthermore, insulating spacers and the like are often mounted by embedding the conductor that forms part of the bus bar in addition to the metal fittings, and in the case of insulating supports made of synthetic resin, metal is often embedded in the resin.
ニブキシ轡胸にこのような金属を埋め込むことは埋め込
み金属に加わる外力或は、樹脂部分に加わるガス圧が樹
脂と金属との接合部並びにその周辺に特に大きく作用し
、核部にクラックを生じることがある。Embedding such a metal in the chest can cause the external force applied to the embedded metal or the gas pressure applied to the resin part to act particularly strongly on the joint between the resin and the metal and its surroundings, causing cracks in the core part. There is.
勿論、このようなことは事前に想定し、この危険を避け
るべく形状、材質等を考慮する外、外力に対する安全率
の確保等に充分な配慮が払われるが、これにも自ずと制
限がある。特に近年は、機器の縮小化、小形化が要請さ
れ、絶縁支持体についても、他の構成部分とのバランス
から、その形状、寸法に制約が伴う中で、絶縁耐力を確
保し、かつ、外力に対する安全率を確保すると云った相
矛盾する要請がある。Of course, such a situation should be anticipated in advance, and sufficient consideration should be given to the shape, material, etc. to avoid this danger, as well as ensuring a safety factor against external forces, but this naturally has its limitations. Particularly in recent years, there has been a demand for downsizing and miniaturization of equipment, and there are restrictions on the shape and dimensions of insulating supports due to the balance with other components. There are contradictory demands such as ensuring a safety factor for
この発明はエポキシ樹脂等の合成樹脂からなる絶縁支持
体内に埋め込まれ、該絶縁支持体との間で相対的に応力
を受ける埋め込み金属と、前記絶縁支持体を構成する合
成樹脂部間に、絶縁性セラミックス部を介在させる如く
したものである。This invention provides insulation between an embedded metal that is embedded in an insulating support made of a synthetic resin such as an epoxy resin and receives stress relative to the insulating support, and a synthetic resin part that constitutes the insulating support. A ceramic part is interposed therebetween.
セラミックスの曲げ強度は、一般に樹脂のそれ（こ比べ
大きい。例えば、ジルコニアを原材料としたセラミック
スでは約１００ｋｇ７Ｈ２、アルミナを原材料としたセ
ラミックスでは約４０＃／ｊｎ２とエポキシ樹脂の約１
３＃Ａｘ”ｌこ比べて著るしく大きい。The bending strength of ceramics is generally higher than that of resins (for example, ceramics made from zirconia as a raw material are about 100kg7H2, ceramics made from alumina are about 40#/jn2, and epoxy resins have a bending strength of about 1
3#Ax”l It is significantly larger than this.
この発明では、絶縁性のセラミックス部を埋め込み金属
と樹脂部との間に介在させたものであるから、応力を最
も大きく受ける金属との接合部並にその周辺は曲げ強度
の大きいセラミックス部によって代替され、樹脂部とセ
ラミックス部の接合部は絶縁支持体の受ける応力の比較
的小さい部分に位置付けることができると共に、樹脂部
とセラミックス部との接合面積も、埋め込み金属との接
合面積に比べ充分に大きくとることができるので、単位
面積当りの応力もそれだけ低くなり、クラック発生を防
止することができる。In this invention, an insulating ceramic part is interposed between the embedded metal and the resin part, so the joint with the metal that receives the greatest stress and its surroundings are replaced by a ceramic part with high bending strength. Therefore, the joint between the resin part and the ceramic part can be positioned in a part where the stress of the insulating support body is relatively small, and the joint area between the resin part and the ceramic part is also sufficiently small compared to the joint area with the embedded metal. Since it can be made larger, the stress per unit area is correspondingly lowered, and cracks can be prevented from occurring.
また、更に、セラミックスとしては上述の通りジルコニ
ア或はアルミナ等の絶縁性の原材料からなるものであり
、セラミックス部を介在させたことによる絶縁上の問題
を生ずることなく、従って絶縁距離を余分に確保する必
要がないので、機器の大型化を避けることができると云
った顕著な効果を奏するものである。Furthermore, as mentioned above, the ceramic is made of an insulating raw material such as zirconia or alumina, so there are no insulation problems caused by interposing the ceramic part, and therefore an extra insulation distance can be secured. This has the remarkable effect of avoiding the need to increase the size of the equipment.
以下、本発明を図面に示す実施例に基いて詳細に説明す
る。Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.
第１図は、本発明を三相−話形ガス絶縁開閉装置に用い
られる絶縁スペーサに実施した場合を例示するもので、
同図（イ）は正面図、（に）は（イ）のＡ−Ａ’線の切
断面図を示すものである。FIG. 1 illustrates the case where the present invention is applied to an insulating spacer used in a three-phase, circular gas insulated switchgear.
FIG. 5(a) is a front view, and FIG. 2(b) is a cross-sectional view taken along line AA' in (a).
図中、ａ、 ｂ、 ｃは６相貫通導体で、ジルコニア等
からなる絶縁性のセラミックス部６によって一体に焼成
されている。４は絶縁スペーサ１の取付金具で、仁の取
付金具４も取付は孔面を残してその外周をジルコニア等
のセラミックス部５によって一体に焼成されている。In the figure, a, b, and c are six-phase through conductors, which are integrally fired with an insulating ceramic part 6 made of zirconia or the like. Reference numeral 4 denotes a mounting bracket for the insulating spacer 1, and the outer periphery of the mounting bracket 4 is integrally fired with a ceramic portion 5 made of zirconia or the like, leaving a hole surface for mounting.
而して前述の６相貫通導体を一体に焼成したセラミック
ス部６は絶縁スペーサ１の略々中央部に、また取付金具
４を一体に焼成したセラミックス部５は絶縁スペーサの
外周部に所要個数配設のうえ、エポキシ樹脂によって一
体に成形されている。The ceramic part 6, which is integrally fired with the six-phase through conductor described above, is arranged approximately in the center of the insulating spacer 1, and the ceramic part 5, which is integrally fired with the mounting bracket 4, is arranged in the required number on the outer periphery of the insulating spacer. In addition, it is integrally molded from epoxy resin.
この実施例では、６相の貫通導体ａ、 ｂ、 ｃをセラ
ミックス部６によって一体に焼成しているので、例えば
−線地絡等によって各相電流に不平衡を生じた場合の相
間に働く力は各相導体ａ、 ｂ、 ｃとセラミックス部
６との接合部並にその周辺で最も強く受けることになる
が、セラミックスの曲げ強度は前述の如く樹脂に比べ格
段に大きく、このため、導体とセラミックス部との接合
部並にその周辺でのクラックは余程強大な力が作用しな
い限り生ずることがない。In this embodiment, the six-phase through-conductors a, b, and c are integrally fired by the ceramic part 6, so that the force acting between the phases when unbalance occurs in each phase current due to, for example, a - line ground fault, etc. is most strongly affected at and around the joints between the phase conductors a, b, c and the ceramic part 6, but as mentioned above, the bending strength of ceramics is much greater than that of resin, and therefore Cracks will not occur at the joint with the ceramic part or around it unless a very strong force is applied.
また、セラミックス部６と樹脂部２との接合部は比較的
応力の小さい部分に位置付けされていること＼、両者の
接合面積が拡大されていることのために、この部分に受
ける応力は大巾に緩和されるものである。Additionally, since the joint between the ceramic part 6 and the resin part 2 is located in a relatively low-stress area, and the joint area between the two has been expanded, the stress applied to this part is large. This will be relaxed.
なお、第１図実施例では、６相の貫通導体ａ、ｂ。In the embodiment shown in FIG. 1, there are six phases of through conductors a and b.
Ｃはセラミックス部６によって一体に焼結されているが
、これは必らずしも一体に焼結する必要はなく、各相毎
に分割焼結したものを絶縁スペーサの成形時に一体に鋳
型するようにしてもセラミックス部と樹脂部との接合部
で受ける応力は格段と低減されるものである。C is integrally sintered by the ceramic part 6, but this does not necessarily have to be integrally sintered, but each phase is sintered separately and molded together when molding the insulating spacer. Even in this case, the stress received at the joint between the ceramic part and the resin part can be significantly reduced.
第２図は、絶縁支持筒に本発明を実施した場合を例示す
るもので、絶縁支持筒１０の上端面の複数個所に（本実
施例では筒の上端局面に４個所）取付金具１１が埋め込
まれた場合を例示している。FIG. 2 illustrates a case where the present invention is applied to an insulating support tube, in which mounting fittings 11 are embedded in multiple locations on the upper end surface of the insulating support tube 10 (in this embodiment, four locations on the upper end surface of the tube). This example shows the case where
而して、取付金具１１はジルコニア等からなるセラミッ
クス部１２に一体に焼結されており、このセラミックス
部には絶縁支持筒１０の成形時に金型内に配設され、樹
脂部１６と一体に鋳型される。The mounting bracket 11 is integrally sintered with a ceramic part 12 made of zirconia or the like, which is placed in a mold when the insulating support tube 10 is molded, and is integrally formed with a resin part 16. be molded.
この実施例に於ても応力を最も強く受ける取付金具１１
との接合部並にその周辺はセラミックス部１２によって
占められており、セラミックス部１２と樹脂部１６との
接合部は比較的応力の小さい部分に位置付けされると共
に両者の接合面積が拡大されていることから、単位面積
当りに受ける応力は格段と低減され、クラックの生ずる
危険を大巾に低減することができるものである。In this embodiment as well, the mounting bracket 11 receives the strongest stress.
The joint area between the ceramic part 12 and the resin part 16 and its surrounding area are occupied by the ceramic part 12, and the joint part between the ceramic part 12 and the resin part 16 is located at a relatively low stress area, and the joint area between the two is expanded. Therefore, the stress applied per unit area is significantly reduced, and the risk of cracking can be greatly reduced.
本発明によれば、絶縁支持体を大型化することなく、絶
縁特性を維持し、而も機械的強度を向上し得るものであ
って、ひいては、機器の縮小化、小型化に貢献するもの
である。According to the present invention, the insulating properties can be maintained and the mechanical strength can be improved without increasing the size of the insulating support, which in turn contributes to downsizing and downsizing of equipment. be.
第１図は本発明を絶縁スペーサ（こ実施した場合を例示
するもので、（イ）は絶縁スペーサの正面図、（ロ）は
（イ）のＡ−Ａ’線に沿った切断面図を示す。第２図は
本発明を絶縁支持筒に実施した場合を例示する絶縁支持
筒の縦断側面図を示すものである。Figure 1 illustrates the case where the present invention is implemented in an insulating spacer (A) is a front view of the insulating spacer, and (B) is a cross-sectional view taken along the line A-A' in (A). FIG. 2 is a longitudinal sectional side view of an insulating support tube, illustrating a case where the present invention is applied to the insulating support tube.
Claims (1)
持体との間で相対的に応力を受ける埋め込み金属と、前
記絶縁支持体を構成する合成樹脂部間に絶縁性セラミッ
クス部を介在させたことを特徴とする絶縁支持体。An insulating ceramic part is interposed between an embedded metal that is embedded in an insulating support made of a synthetic resin and receives stress relative to the insulating support, and a synthetic resin part that constitutes the insulating support. An insulating support characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63151788A JPH027816A (en) | 1988-06-20 | 1988-06-20 | Insulation supporting body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63151788A JPH027816A (en) | 1988-06-20 | 1988-06-20 | Insulation supporting body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH027816A true JPH027816A (en) | 1990-01-11 |
Family
ID=15526308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63151788A Pending JPH027816A (en) | 1988-06-20 | 1988-06-20 | Insulation supporting body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1182760A1 (en) * | 2000-08-25 | 2002-02-27 | Schneider Electric High Voltage SA | Watertight partition and metal enclosed, gas insulated three-phases electrical installation with such a partition |
-
1988
- 1988-06-20 JP JP63151788A patent/JPH027816A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1182760A1 (en) * | 2000-08-25 | 2002-02-27 | Schneider Electric High Voltage SA | Watertight partition and metal enclosed, gas insulated three-phases electrical installation with such a partition |
| FR2813452A1 (en) * | 2000-08-25 | 2002-03-01 | Schneider Electric High Voltag | SEALED PARTITIONING PARTITION AND THREE - PHASE SHIELDED ELECTRICAL INSTALLATION WITH GAS INSULATION PROVIDED WITH SUCH A PARTITION |
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