JPH0135538Y2 - - Google Patents
Info
- Publication number
- JPH0135538Y2 JPH0135538Y2 JP5510284U JP5510284U JPH0135538Y2 JP H0135538 Y2 JPH0135538 Y2 JP H0135538Y2 JP 5510284 U JP5510284 U JP 5510284U JP 5510284 U JP5510284 U JP 5510284U JP H0135538 Y2 JPH0135538 Y2 JP H0135538Y2
- Authority
- JP
- Japan
- Prior art keywords
- xlpe
- capacitor
- oil
- cone
- cable
- 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
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 20
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 18
- 239000012212 insulator Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
この考案は、主として、150kV以上の、直流用
XLPEケーブルの終端部に関するものである。[Detailed explanation of the invention] This invention is mainly used for direct current applications of 150kV or higher.
This concerns the termination of the XLPE cable.
考案の背景
直流の場合、電位分担は抵孔分圧されるので、
終端はXLPEの電界しやへい型のモールド品で作
ればよい。しかし、150kV以上の高電圧では、高
いインパルス性能が要求されるので、コンデンサ
型終端が使用されることになる。Background of the idea In the case of direct current, the potential is divided by resistance, so
The termination can be made with an XLPE electric field shield type molded product. However, at high voltages above 150kV, high impulse performance is required, so capacitor-type terminations are used.
第１図は、従来のコンデンサ型終端の一例であ
る。１０はケーブル導体、１２はXLPEのケーブ
ル絶縁体、１４はケーブルしやへい層である。 FIG. 1 is an example of a conventional capacitor type termination. 10 is a cable conductor, 12 is an XLPE cable insulator, and 14 is a cable hardening layer.
２０がコンデンサコーンの全体、２２はその絶
縁体、２４は電極、２６はしやへい層で、２８は
絶縁油を示す。 20 is the entire capacitor cone, 22 is the insulator, 24 is the electrode, 26 is the insulation layer, and 28 is the insulating oil.
コンデンサコーン２０には、絶縁体２２が油浸
紙のものと、XLPEモールド品ののものとがあ
る。 The capacitor cone 20 has an insulator 22 of oil-impregnated paper and an XLPE molded product.
そのうちで、油浸紙コンデンサ型の方は、電気
的破壊強度があまり高くない。それはケーブル絶
縁体１２との材質の違いのために起きるのであつ
て、第３図、第４図に示すように、油浸紙と
XLPEとでは絶縁抵抗が著しく異り、かつ上記の
ように、直流の場合は、電位分担は抵抗分担にな
るので、電位分担のアンバランスが生じ、局部的
に高電界が発生するからである。 Among these, the oil-immersed paper capacitor type does not have very high electrical breakdown strength. This occurs due to the difference in the material from the cable insulator 12, and as shown in Figures 3 and 4, oil-impregnated paper and
This is because the insulation resistance is significantly different from that of XLPE, and as mentioned above, in the case of direct current, potential sharing is resistance sharing, so an imbalance of potential sharing occurs and a high electric field is generated locally.
特に電気ストレスの強いストレスコーン部分２
７（しやへい層２６に接する部分を言い、一点鎖
線で大体の範囲を示した）で、絶縁破壊が起きや
すい。 Stress cone part 2 with particularly strong electrical stress
7 (referring to the portion in contact with the insulation layer 26, the approximate range is indicated by a dashed line), dielectric breakdown is likely to occur.
これに対して、XLPEモールド型の方は、材質
がケーブル絶縁体１２と同じであり、同じ絶縁抵
抗の材質でストレスコーンが形成されるので、電
圧分担のアンバランスが生ぜず、電気的性能がた
いへん良い。 On the other hand, with the XLPE mold type, the material is the same as the cable insulator 12, and the stress cone is formed of a material with the same insulation resistance, so there is no imbalance in voltage sharing and the electrical performance is improved. Very good.
ただし、電極入りコンデンサを一度でモールド
成形するのは、製造に長い日数がかかり、そのた
めにたいへんコスト高になるという短所がある。 However, molding a capacitor with electrodes all at once takes a long time to manufacture, which has the disadvantage of making the cost very high.
この考案は、上記の問題を解決し、油浸紙コン
デンサ型とXLPEモールド型との良い面だけをと
り、電気的性能が良くて、しかも製造にあまり日
数のかからないコンデンサコーンを持つ、XLPE
ケーブルの終端部の提供を目的とするものであ
る。 This invention solves the above problems, takes only the good aspects of the oil-immersed paper capacitor type and the XLPE molded type, and uses XLPE with a capacitor cone that has good electrical performance and takes less time to manufacture.
Its purpose is to provide a termination section for cables.
実施例
第２図のように、コンデンサコーン３０のうち
の、ストレスコーンの部分３４（電気ストレスの
強い部分）だけを、XLPEをモールドして作つた
ソリツド品で形成する。Embodiment As shown in FIG. 2, only the stress cone portion 34 (portion with strong electrical stress) of the capacitor cone 30 is formed of a solid product made by molding XLPE.
この部分は、現地でモールドしてもよいし、ま
た、あらかじめ作つておいて、現地で挿入するよ
うにしてもよい。 This part may be molded on site, or may be prefabricated and inserted on site.
そして、端子側の部分を、絶縁体３８内に電極
４０を入れた油浸紙巻きコンデンサ３６で形成す
る。この部分も現地で組立ててもよいし、またあ
らかじめ作つておき、かつXLPEのストレスコー
ン部分３４と一体化しておいて、現地で挿入して
もよい。 The terminal side portion is formed by an oil-immersed paper-wrapped capacitor 36 in which an electrode 40 is placed within an insulator 38. This part may also be assembled on-site, or may be prefabricated and integrated with the XLPE stress cone section 34 and inserted on-site.
なお、ソリツドのXLPEからなるストレスコー
ン部３４と、油浸紙からなるコンデンサ部３６と
の境界部４２の電界は、図のようにステツピング
状にすることにより電界は小さくなり、電気的弱
点になる心配はない。 Note that the electric field at the boundary 42 between the stress cone section 34 made of solid XLPE and the capacitor section 36 made of oil-impregnated paper is made into a stepping shape as shown in the figure, so that the electric field becomes small and becomes an electrical weak point. No worries.
試験結果
直流154kVXLPEケーブル（絶縁厚23mm、導体
サイズ1000mm2）の場合。Test results for DC 154kV XLPE cable (insulation thickness 23mm, conductor size 1000mm2 ).
試験条件
導体温度 80℃
課電ステツプ 50kV／１時間
● 従来品 ：直流−600kVでストレスコーン
部破壊。Test conditions Conductor temperature: 80℃ Voltage step: 50kV/1 hour ● Conventional product: Stress cone part destroyed at -600kV DC.
● 本発明品：−900kV OK。● Invention product: -900kV OK.
（従来品は油浸紙型コンデンサコーン）
なお本考案は、交流ケーブルにおける直流耐圧
の試験用終端にも適用できる。(The conventional product is an oil-immersed paper type capacitor cone.) The present invention can also be applied to the termination of an AC cable for testing DC withstand voltage.
発明の効果
(1) 電気的の弱点となり易いストレスコーン部分
をXLPEをモールドしたソリツド品で形成して
いるので、電位分担のアンバランスが生ぜず、
上記の試験結果にみられるように、油浸紙だけ
で作つたコンデンサコーンに比べて、性能が向
上する。Effects of the invention (1) The stress cone part, which tends to be an electrical weak point, is made of a solid product molded with XLPE, so there is no imbalance in potential distribution.
As seen in the test results above, the performance is improved compared to a capacitor cone made only from oil-impregnated paper.
(2) ストレスコーン部分の材質が、ケーブル絶縁
体と同じなので、XLPEケーブルの大きな熱膨
張、収縮に追従し、機械的な損傷を受けない。(2) Since the stress cone is made of the same material as the cable insulator, it follows the large thermal expansion and contraction of the XLPE cable and is not subject to mechanical damage.
(3) ストレスコーン部分３４の端子側の部分を油
浸紙コンデンサ３６で形成しているので、全体
をXLPEのモールド品で作るのに比べて、製造
時間が短縮される。(3) Since the terminal side portion of the stress cone portion 34 is formed from the oil-immersed paper capacitor 36, the manufacturing time is reduced compared to making the entire structure from an XLPE molded product.
第１図は従来技術の説明図、第２図は本考案の
実施例の説明図、第３図はXLPEと油浸紙の絶縁
抵抗−電界特性図、第４図はXLPEと油浸紙の絶
縁抵抗−温度特性図。
１２…ケーブル絶縁体、３０…コンデンサコー
ン、３２…しやへい層、３４…ストレスコーン部
分、３６…油浸紙コンデンサ、３８…絶縁体、４
０…電極。
Fig. 1 is an explanatory diagram of the prior art, Fig. 2 is an explanatory diagram of the embodiment of the present invention, Fig. 3 is an insulation resistance-electric field characteristic diagram of XLPE and oil-impregnated paper, and Fig. 4 is a diagram of XLPE and oil-impregnated paper. Insulation resistance-temperature characteristic diagram. DESCRIPTION OF SYMBOLS 12... Cable insulator, 30... Capacitor cone, 32... Shrinking layer, 34... Stress cone part, 36... Oil-immersed paper capacitor, 38... Insulator, 4
0...electrode.
Claims (1)
端部において、 前記コンデンサコーンのうち、ケーブル側のス
トレスコーン部分をXLPEのモールド品で形成
し、端子側の部分を油浸紙コンデンサで形成した
ことを特徴とする、XLPEケーブルの終端部。[Claim for Utility Model Registration] At the terminal end of an XLPE cable provided with a capacitor cone, the stress cone part on the cable side of the capacitor cone is formed of a molded XLPE product, and the part on the terminal side is made of an oil-immersed paper capacitor. A termination part of an XLPE cable characterized by being formed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5510284U JPS60171032U (en) | 1984-04-14 | 1984-04-14 | XLPE cable termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5510284U JPS60171032U (en) | 1984-04-14 | 1984-04-14 | XLPE cable termination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60171032U JPS60171032U (en) | 1985-11-13 |
| JPH0135538Y2 true JPH0135538Y2 (en) | 1989-10-30 |
Family
ID=30577461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5510284U Granted JPS60171032U (en) | 1984-04-14 | 1984-04-14 | XLPE cable termination |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60171032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012173041A1 (en) | 2011-06-13 | 2012-12-20 | 株式会社ジェイ・パワーシステムズ | Terminal connecting section for dc cable |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2805905B2 (en) * | 1989-10-30 | 1998-09-30 | 住友電気工業株式会社 | Power cable connection |
-
1984
- 1984-04-14 JP JP5510284U patent/JPS60171032U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012173041A1 (en) | 2011-06-13 | 2012-12-20 | 株式会社ジェイ・パワーシステムズ | Terminal connecting section for dc cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60171032U (en) | 1985-11-13 |
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