JPS626821Y2 - - Google Patents
Info
- Publication number
- JPS626821Y2 JPS626821Y2 JP17144081U JP17144081U JPS626821Y2 JP S626821 Y2 JPS626821 Y2 JP S626821Y2 JP 17144081 U JP17144081 U JP 17144081U JP 17144081 U JP17144081 U JP 17144081U JP S626821 Y2 JPS626821 Y2 JP S626821Y2
- Authority
- JP
- Japan
- Prior art keywords
- insulating spacer
- metal
- flange
- metal flange
- high voltage
- 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
Links
- 239000002184 metal Substances 0.000 claims description 40
- 125000006850 spacer group Chemical group 0.000 claims description 38
- 239000004020 conductor Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
- Installation Of Bus-Bars (AREA)
Description
【考案の詳細な説明】
本考案は接地金属容器内に高電圧導体を支持配
設する絶縁スペーサに係り、特に検電コロナ測定
及び電流検出構造を改良した絶縁スペーサに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating spacer for supporting and arranging a high voltage conductor within a grounded metal container, and more particularly to an insulating spacer with improved corona measurement and current detection structure.
ガス絶縁機器は、絶縁ガス（例えばSF6ガス）
を充填した接地金属容器（以下ケースと呼ぶ）内
に高電圧導体を配設して構成されているが、この
高電圧導体を接地金属容器内面より絶縁支持する
ためには絶縁スペーサと呼ばれる部材が用いられ
ている。 Gas insulated equipment is an insulating gas (e.g. SF 6 gas)
A high-voltage conductor is placed inside a grounded metal container (hereinafter referred to as a case) filled with It is used.
第１図に従来の絶縁スペーサの縦断面図を示
す。１は高電圧導体、２は絶縁ガス、３は接地容
器である。４は絶縁スペーサ本体である。高電圧
導体１相互を接合する通電部材４１は絶縁スペー
サ本体４と一体に注形されている。６は金属フラ
ンジであり、これも絶縁スペーサ本体４に一体に
注形されている。７１，７２は絶縁スペーサ本体
に一体に注形された導電性リングであり、７１は
常時接地され、容器３と絶縁スペーサ４０との結
合部の電界を緩和し、絶縁性能の向上に寄与して
いる。７２は任意に、常時または一時的に電位を
浮遊させることが可能な構造となつており、高圧
側充電部の電圧測定、およびコロナ測定に使用さ
れる。つまり、金属リング７２を電位的に浮遊さ
せると高電圧導体１を金属リング７２間および金
属リング７２と接地容器３、あるいは金属フラン
ジ６間の静電容量分圧により、金属リング７２に
は高圧側充電部電圧に比例した電圧が誘起され
る。 FIG. 1 shows a longitudinal cross-sectional view of a conventional insulating spacer. 1 is a high voltage conductor, 2 is an insulating gas, and 3 is a grounding container. 4 is an insulating spacer body. The current-carrying member 41 that connects the high voltage conductors 1 to each other is cast integrally with the insulating spacer body 4. 6 is a metal flange, which is also cast integrally with the insulating spacer main body 4. 71 and 72 are conductive rings integrally cast into the insulating spacer main body, and 71 is always grounded to alleviate the electric field at the joint between the container 3 and the insulating spacer 40 and contribute to improving insulation performance. There is. 72 has a structure that allows the potential to float permanently or temporarily, and is used for voltage measurement of the high-voltage side charging section and corona measurement. In other words, when the metal ring 72 is floating in potential, the high voltage conductor 1 is moved to the high voltage side by the capacitance partial pressure between the metal ring 72 and between the metal ring 72 and the grounding container 3 or the metal flange 6. A voltage proportional to the charging part voltage is induced.
この電圧を金属フランジ６とは絶縁された導電
性部材により、金属フランジ６に設けた開孔を通
して、外部に取り出すことにより、高圧側充電部
の検電、即ち電圧測定及びコロナ測定などをおこ
なうことができる。しかしながらこの従来の絶縁
スペーサにおいては以下のような欠点がある。 By extracting this voltage to the outside through an opening provided in the metal flange 6 using a conductive member insulated from the metal flange 6, voltage detection of the high-voltage side live part, that is, voltage measurement and corona measurement, etc. can be performed. Can be done. However, this conventional insulating spacer has the following drawbacks.
すなわち、絶縁スペーサ４内に２個の金属リン
グを金属フランジ６と共に一体に注形する必要が
あり、注形時に注形工数がかかること、又、構造
的に複雑になることなどからコスト高になる。 That is, it is necessary to integrally cast the two metal rings together with the metal flange 6 inside the insulating spacer 4, which requires a lot of man-hours during casting, and the structure becomes complicated, resulting in high costs. Become.
また、絶縁物内に複数個の小さな金属リングを
一体に注形することは機械的、特に熱応力的にも
好ましくなく、クラツク割れ発生の原因にもな
る。従つて、絶縁物内に一体注形される金属リン
グの個数は必要最小限であることが望まれてい
た。 Furthermore, integrally casting a plurality of small metal rings into an insulator is not favorable mechanically, especially in terms of thermal stress, and may cause cracks. Therefore, it has been desired that the number of metal rings that are integrally cast within the insulator be the minimum necessary.
本考案は上記問題点に鑑みなされたもので、構
造が簡単で、製作が容易であり、機械応力的にも
好ましい検電コロナ測定及び電流検出構造を有す
る絶縁スペーサを提供することを目的とする。 The present invention was devised in view of the above-mentioned problems, and aims to provide an insulating spacer having a simple structure, easy to manufacture, and an electroscopic corona measurement and current detection structure that is favorable in terms of mechanical stress. .
以下、本考案の一実施例を第２図を参照して説
明する。 Hereinafter, one embodiment of the present invention will be described with reference to FIG.
第１図に示した部品と同一部品には同符号を符
している。高電圧導体１を絶縁スペーサ４０を介
して絶縁ガス２が充填された接地容器３内に支持
配設する。通常接地容器３の端部には、接地容器
３相互を連結するために連結フランジ５が設けら
ている。絶縁スペーサ４０はこの連結フランジ５
相互に挾持される形で高電圧導体１を接地容器３
内に支持配設する。絶縁スペーサ４０は、連結フ
ランジ５相互に挾持される金属フランジ６及びこ
れと接合される絶縁スペーサ本体４とから構成
し、そしてこれらを従来の様に、一体注形して製
作することなく、別個に単独に製作し、機器組立
時に一体として組込んで製作する。尚、絶縁スペ
ーサ本体４と連結フランジ５との間はオーリング
３１を介して接合し、ガス密を維持させている。
そして金属フランジ６と絶縁スペーサ４本体との
接合面の一部に、高電圧導体１を中心軸として環
状をなす様に間隙１０を設ける。ここで前記間隙
１０は次のようにして形成される。即ち、絶縁ス
ペーサ本体４の外周部には、その厚さ方向中間部
に突出部４ａを設けてあり、一方金属フランジ６
の内周面には、その一側に突出部６ａを設けてあ
る。このため、スペーサ本体４の突出部４ａの片
側と、金属フランジ６の内周面他側間には図示の
如く環状の間隙１０が形成されるわけである。尚
スペーサ本体４の突出部４ａの他側と金属フラン
ジ６の突出部６ａとは互に係合して絶縁スペーサ
４０が構成される。そしてこの間隙１０内に外周
を絶縁物で包囲された金属リング８を挿通させ
る。この金属リング８を金属フランジ６より電位
的に浮遊させれば、前述の理由から、リング８に
は高圧側充電部電圧に比例した電圧が発生し、金
属フランジ６に設けた図示しない開孔を介して取
り出すことにより電圧測定及びコロナ測定を行う
ことができる。又、本実施例の様に、絶縁スペー
サ４０を構成する金属フランジ６と絶縁スペーサ
本体４とを分離可能に構成したため、注形工数が
削減され、又コストの低減をはかることも可能と
なる。そのうえ電圧測定用の金属リング８を絶縁
スペーサ本体４内に一体注形する必要がなくなり
製作容易で、機械応力的にもコスト的にも良好
で、且つ構造的にも簡単なものとすることができ
る。 Components that are the same as those shown in FIG. 1 are designated by the same reference numerals. A high voltage conductor 1 is supported and arranged in a grounded container 3 filled with an insulating gas 2 via an insulating spacer 40. Usually, a connecting flange 5 is provided at the end of the grounded container 3 to connect the grounded containers 3 to each other. The insulating spacer 40 is attached to this connecting flange 5.
A high voltage conductor 1 is connected to a grounding container 3 in a manner that they are sandwiched between each other.
Supported within. The insulating spacer 40 is composed of a metal flange 6 that is held between connecting flanges 5 and an insulating spacer body 4 that is joined to the metal flange 5.The insulating spacer 40 is made up of a metal flange 6 that is held between connecting flanges 5 and an insulating spacer body 4 that is joined to the metal flange 5. It is manufactured separately and then incorporated as an integral part when assembling the equipment. Incidentally, the insulating spacer body 4 and the connecting flange 5 are joined via an O-ring 31 to maintain gas tightness.
A gap 10 is provided in a part of the joint surface between the metal flange 6 and the main body of the insulating spacer 4 so as to form an annular shape with the high voltage conductor 1 as the central axis. Here, the gap 10 is formed as follows. That is, the outer circumferential portion of the insulating spacer main body 4 is provided with a protruding portion 4a at the middle portion in the thickness direction, while the metal flange 6
A protrusion 6a is provided on one side of the inner circumferential surface of. Therefore, an annular gap 10 is formed between one side of the protrusion 4a of the spacer body 4 and the other side of the inner peripheral surface of the metal flange 6, as shown in the drawing. The other side of the protrusion 4a of the spacer body 4 and the protrusion 6a of the metal flange 6 are engaged with each other to form an insulating spacer 40. A metal ring 8 whose outer periphery is surrounded by an insulating material is inserted into this gap 10. If this metal ring 8 is floated in potential from the metal flange 6, a voltage proportional to the voltage of the high-voltage side live part will be generated in the ring 8 for the above-mentioned reason, and the hole (not shown) provided in the metal flange 6 will be generated in the ring 8. Voltage measurement and corona measurement can be performed by taking it out through the tube. Further, as in this embodiment, since the metal flange 6 constituting the insulating spacer 40 and the insulating spacer main body 4 are configured to be separable, the number of molding steps can be reduced, and it is also possible to reduce costs. Furthermore, there is no need to integrally cast the metal ring 8 for voltage measurement inside the insulating spacer main body 4, making it easy to manufacture, good in terms of mechanical stress and cost, and simple in structure. can.
本考案の他の実施例を第２図及び第３図を参照
して説明する。 Another embodiment of the present invention will be described with reference to FIGS. 2 and 3.
第２図に示した間隙１０内の金属リング８に代
えて第３図に示した様に巻回した絶縁物で包囲さ
れたコイル８０を挿通させるようにしてもよい。
この場合端子８１を金属フランジ６に設けた図示
しない開孔より取り出すことにより、コイルに発
生した電圧が直接測定でき、主回路電流の測定が
可能となる。 Instead of the metal ring 8 in the gap 10 shown in FIG. 2, a coil 80 surrounded by a wound insulator may be inserted as shown in FIG.
In this case, by taking out the terminal 81 through a hole (not shown) provided in the metal flange 6, the voltage generated in the coil can be directly measured, and the main circuit current can be measured.
以上説明した様に本考案によれば、構造が簡単
で、製作容易であり、機械応力的にも好ましい検
電コロナ測定及び電流検出構造を有する絶縁スペ
ーサを提供することができる。 As explained above, according to the present invention, it is possible to provide an insulating spacer that has a simple structure, is easy to manufacture, and has an electroscopic corona measurement and current detection structure that is favorable in terms of mechanical stress.
第１図は従来の絶縁スペーサの縦断面図、第２
図は本考案の一実施例の絶縁スペーサの縦断面
図、第３図は本考案の他の実施例を説明する図で
ある。
１……高電圧導体、３……接地容器、４……絶
縁スペーサ本体、４０……絶縁スペーサ、５……
連結フランジ、６……金属フランジ、８……金属
リング、１０……間隙、８０……コイル。
Figure 1 is a vertical cross-sectional view of a conventional insulating spacer, Figure 2
The figure is a longitudinal sectional view of an insulating spacer according to one embodiment of the present invention, and FIG. 3 is a diagram illustrating another embodiment of the present invention. 1... High voltage conductor, 3... Grounding container, 4... Insulating spacer body, 40... Insulating spacer, 5...
Connection flange, 6... Metal flange, 8... Metal ring, 10... Gap, 80... Coil.
Claims (1)
圧導体を支持配設する絶縁スペーサにおいて、
前記絶縁スペーサは、前記接地金属容器相互を
連結するため前記接地金属容器の各々の端部に
設けられた連結フランジ間に挾持される金属フ
ランジと、前記金属フランジの前記高電圧導体
との対向面側に前記金属フランジと分離可能に
接合される絶縁スペーサ本体と、前記金属フラ
ンジと前記絶縁スペーサ本体との接合面間に形
成した前記高電圧導体を中心軸として環状とな
る間隙内部に配置され前記金属フランジ並びに
前記連結フランジと絶縁される導電性部材とを
具備してなる絶縁スペーサ。 ２ 導電性部材は絶縁被覆した金属リングである
実用新案登録請求の範囲第１項記載の絶縁スペ
ーサ。 ３ 導電性部材は絶縁被覆したコイルである実用
新案登録請求の範囲第１項記載の絶縁スペー
サ。[Claims for Utility Model Registration] 1. In an insulating spacer for supporting and arranging a high voltage conductor in a grounded metal container filled with an insulating gas,
The insulating spacer includes a metal flange sandwiched between connecting flanges provided at each end of the grounded metal container to connect the grounded metal containers to each other, and a surface of the metal flange facing the high voltage conductor. an insulating spacer main body that is separably joined to the metal flange on the side; and an annular gap with the high voltage conductor formed between the joint surfaces of the metal flange and the insulating spacer main body as a central axis; An insulating spacer comprising a metal flange and a conductive member insulated from the connecting flange. 2. The insulating spacer according to claim 1, wherein the conductive member is a metal ring coated with insulation. 3. The insulating spacer according to claim 1, wherein the conductive member is a coil coated with insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17144081U JPS5878723U (en) | 1981-11-19 | 1981-11-19 | insulation spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17144081U JPS5878723U (en) | 1981-11-19 | 1981-11-19 | insulation spacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5878723U JPS5878723U (en) | 1983-05-27 |
| JPS626821Y2 true JPS626821Y2 (en) | 1987-02-17 |
Family
ID=29963365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17144081U Granted JPS5878723U (en) | 1981-11-19 | 1981-11-19 | insulation spacer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5878723U (en) |
-
1981
- 1981-11-19 JP JP17144081U patent/JPS5878723U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5878723U (en) | 1983-05-27 |
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