JPH06101892B2 - Gas insulation equipment - Google Patents
Gas insulation equipmentInfo
- Publication number
- JPH06101892B2 JPH06101892B2 JP60154296A JP15429685A JPH06101892B2 JP H06101892 B2 JPH06101892 B2 JP H06101892B2 JP 60154296 A JP60154296 A JP 60154296A JP 15429685 A JP15429685 A JP 15429685A JP H06101892 B2 JPH06101892 B2 JP H06101892B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- hole
- gas
- insulating spacer
- discharge gap
- 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 - Lifetime
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
- H02G5/068—Devices for maintaining distance between conductor and enclosure being part of the junction between two enclosures
Landscapes
- Gas-Insulated Switchgears (AREA)
- Installation Of Bus-Bars (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は絶縁スペーサによつてガス管路間を電気的に絶
縁して構成したガス絶縁機器に関する。Description: FIELD OF THE INVENTION The present invention relates to a gas insulation device in which gas pipelines are electrically insulated by an insulating spacer.
〔発明の背景〕 一般にガス絶縁機器は、そのガス管路間を絶縁スペーサ
によつて電気的に絶縁した箇所を有している。BACKGROUND OF THE INVENTION In general, a gas insulation device has a portion where its gas pipelines are electrically insulated by an insulating spacer.
例えば、第４図に示すガス絶縁機器においては、計器用
変圧器10や避雷器11の接続部、またはガス管路12の両側
の接続部に絶縁スペーサ13が用いられ、ガス区画と共に
ガス管路間を電気的に絶縁して構成されている。For example, in the gas-insulated equipment shown in FIG. 4, insulating spacers 13 are used at the connecting portions of the instrument transformer 10 and the lightning arrester 11, or at the connecting portions on both sides of the gas pipeline 12, and between the gas compartment and the gas pipeline. Is electrically insulated.
絶縁スペーサ部分の一般的な構成を第５図に示してい
る。主回路を構成する導体17,18間は、絶縁スペーサ13
の中心導体19によつて接続され、また導体17,18のガス
管路20,21のフランジ部20a,21a間は絶縁スペーサ13を挾
持してボルトによつて締め付けられている。第６図はボ
ルトによるフランジ部間の接続部を拡大して示す断面図
で、絶縁スペーサ13の貫通孔内にはめねじを形成した金
属金具22が一体にモールドされ、この金属金具22へ螺合
したスタツドボルト23が設けられている。右方のフラン
ジ部21aはスタツドボルト23へ螺合したナツト24によつ
て直接締め付けられ、一方、フランジ部20a側は絶縁ワ
ツシヤ25を介してスタツドボルト23へ螺合したナツト26
によつて締め付けられている。フランジ部20aとスタツ
トボルト23間には絶縁筒27があり、この絶縁筒27と絶縁
ワツシヤ25とによつてフランジ部20a,21a間は電気的に
絶縁されている。The general structure of the insulating spacer portion is shown in FIG. Insulating spacers 13 are placed between the conductors 17 and 18 that make up the main circuit.
Of the conductors 17 and 18, and the flange portions 20a and 21a of the gas conduits 20 and 21 of the conductors 17 and 18 are clamped by bolts with an insulating spacer 13 held between them. FIG. 6 is an enlarged cross-sectional view showing a connecting portion between flange portions by bolts, in which a metal fitting 22 having a female screw is integrally molded in the through hole of the insulating spacer 13 and screwed to the metal fitting 22. A stud bolt 23 is provided. The right flange portion 21a is directly tightened by a nut 24 screwed to the stud bolt 23, while the flange portion 20a side is a nut 26 screwed to the stud bolt 23 via an insulating washer 25.
It is tightened by. An insulating cylinder 27 is provided between the flange portion 20a and the start bolt 23, and the insulating cylinder 27 and the insulating washer 25 electrically insulate the flange portions 20a and 21a.
ところで、第４図に示したガス絶縁機器の遮断器14、断
路器15および接地開閉器16を開閉動作した場合、絶縁ス
ペーサ13によつて電気的に絶縁されたガス管路20,21の
フランジ部20a,21a間で高周波の高圧サージ電圧が発生
し、フランジ部間で放電することがある。By the way, when the circuit breaker 14, the disconnector 15 and the grounding switch 16 of the gas-insulated equipment shown in FIG. 4 are opened and closed, the flanges of the gas pipelines 20 and 21 electrically insulated by the insulating spacer 13 are provided. A high-frequency high-voltage surge voltage may be generated between the parts 20a and 21a, and discharge may occur between the flange parts.
従来は特開昭56-139013号公報に示されているように、
フランジ部間にサージアブソーバを直列接続していた。
しかし、現在使用されているサージアブソーバではMHz
オーダを超える高周波サージに対して抑制効果がない。
このため、実開昭55-176024号公報に示されているよう
に、サーシアブソーバに代えて低周波から高周波にわた
つてサージ抑制効果のある気中の放電ギヤツプが使用さ
れるようになつた。しかし、従来の放電ギヤツプは、絶
縁スペーサをフランジ部間に締め付けて構成したガス絶
縁機器に付加するだけであつて、絶縁スペーサの外側に
突出して構成していた。このため、放電経路が長くイン
ピーダンスが増大し、他の部分で放電を生ずる危険があ
つた。Conventionally, as shown in JP-A-56-139013,
A surge absorber was connected in series between the flanges.
However, the surge absorber currently in use has MHz
There is no suppression effect for high frequency surges exceeding the order.
For this reason, as disclosed in Japanese Utility Model Laid-Open No. 55-176024, an air discharge gap having a surge suppressing effect has been used instead of the circulator sheave over a low frequency to a high frequency. However, the conventional discharge gear is simply added to a gas-insulated device formed by fastening an insulating spacer between flange portions, and is configured to project to the outside of the insulating spacer. As a result, the discharge path is long and the impedance increases, and there is a risk of discharge occurring in other parts.
本発明の目的は、放電経路を短くしてインピーダンスを
抑え確実に放電ギヤツプで放電するようにしたガス絶縁
機器を提供するにある。An object of the present invention is to provide a gas-insulated device in which the discharge path is shortened to suppress the impedance so that the discharge is surely performed by the discharge gap.
本発明は、締付用ボルトが貫通する複数の締付用ボルト
穴を有するフランジ部に、放電ギヤツプ収納用穴を形成
し、絶縁スペーサの内部に放電ギヤツプを形成したこと
を特徴とする。The present invention is characterized in that a discharge gear cup accommodating hole is formed in a flange portion having a plurality of tightening bolt holes through which fastening bolts penetrate, and a discharge gear cup is formed inside an insulating spacer.
以下本発明の実施例を図面によつて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図はガス管路20,21のフランジ部20a,21a間に絶縁ス
ペーサ13を挾持した部分の断面図である。一方のフラン
ジ部20aに形成した放電ギヤツプ収納用穴におねじ部を
螺合した電極１は、ナツト３によつて所定の位置に保持
されている。他方のフランジ部21aに形成した放電ギヤ
ツプ収納用穴におねじ部を螺合した電極２は、ナツト４
によつて所定の位置に保持されている。両フランジ部20
a,21aの放電ギヤツプ収納用穴間に位置する部分の絶縁
スペーサ13には貫通孔６が形成されている。この貫通孔
６内に、両電極1,2によつて気中放電ギヤツプ５が形成
されている。この放電ギヤツプ５のギヤツプ長は所定の
値に調整され、ナツト3,4の締め付けにより固定されて
いる。電極1,2がねじ構造であるため、ギヤツプ長を調
整することができる。FIG. 1 is a cross-sectional view of a portion where an insulating spacer 13 is sandwiched between the flange portions 20a and 21a of the gas pipelines 20 and 21. The electrode 1 having a threaded portion screwed into the discharge gear cup storage hole formed in the one flange portion 20a is held at a predetermined position by the nut 3. The electrode 2 in which the screw portion is screwed into the hole for storing the discharge gear formed in the other flange portion 21a has a nut 4
Is held in place by the. Both flanges 20
A through hole 6 is formed in a portion of the insulating spacer 13 located between the holes 21a and 21a for accommodating the discharge gear cup. In the through hole 6, an air discharge gap 5 is formed by both electrodes 1 and 2. The gear length of the discharge gear 5 is adjusted to a predetermined value and fixed by tightening the nuts 3 and 4. Since the electrodes 1 and 2 have a screw structure, the gear length can be adjusted.
絶縁スペーサ13の貫通孔６の位置を明確にするため、対
応する位置に放電ギヤツプ収納用穴を有するフランジ部
20aを第３図で説明する。In order to clarify the position of the through hole 6 of the insulating spacer 13, a flange portion having a hole for accommodating the discharge gear at the corresponding position.
20a will be described with reference to FIG.
リング状を成すフランジ部20aには、同一円周上に複数
の締付用ボルト穴７が形成されており、この締付用ボル
ト穴７と、これに対応する絶縁スペーサ13の別の貫通孔
には第６図に示すスタツドボルト23が貫通して配置され
ている。同じ円周上に本実施例では４つの放電ギヤツプ
収納用穴８が形成されており、この放電ギヤツプ収納用
穴８に対応して絶縁スペーサ13に形成された貫通孔６内
に放電ギヤツプ５が形成されている。A plurality of tightening bolt holes 7 are formed on the same circumference in the ring-shaped flange portion 20a. This tightening bolt hole 7 and another through hole of the insulating spacer 13 corresponding to this tightening bolt hole 7 are formed. A stud bolt 23 shown in FIG. 6 is arranged so as to penetrate therethrough. In this embodiment, four discharge gear cup storage holes 8 are formed on the same circumference, and the discharge gear cups 5 are formed in the through holes 6 formed in the insulating spacer 13 corresponding to the discharge gear cup storage holes 8. Has been formed.
フランジ部20a,21a間に位置する絶縁スペーサ13の貫通
孔６内に放電ギヤツプ５を形成しているため、ガス管路
20,21間における放電経路は大幅に短かくなり、放電経
路におけるインピーダンスも少なくなり、放電ギヤツプ
５において確実な放電を起こすことができる。Since the discharge gap 5 is formed in the through hole 6 of the insulating spacer 13 located between the flange portions 20a and 21a, the gas pipeline
The discharge path between 20 and 21 is significantly shortened, the impedance in the discharge path is reduced, and reliable discharge can be generated in the discharge gear 5.
第２図は放電ギヤツプ５の異なる構成例を示している。
フランジ部21a、絶縁スペーサ13の構成等は第１図の場
合と同様である。FIG. 2 shows a different configuration example of the discharge gear 5.
The configurations of the flange portion 21a and the insulating spacer 13 are the same as in the case of FIG.
しかし、フランジ部20aには、絶縁スペーサ13の貫通孔
６に対応する部分に放電ギヤツプ収納用穴がなく、フラ
ンジ部20aの対向側内面が、他方の電極を形成してお
り、この電極と電極２間で放電ギヤツプ５を構成してい
る。However, the flange portion 20a does not have a hole for accommodating the discharge gear at a portion corresponding to the through hole 6 of the insulating spacer 13, and the inner surface of the flange portion 20a on the opposite side forms the other electrode. A discharge gear 5 is formed between the two.
このような構成によれば、一方のフランジ部20aは第３
図に示す放電ギヤツプ収納用穴８が不要であり、構成を
簡単にすることができる。また放電経路については先の
実施例と同様に、放電ギヤツプ５までの放電経路を短か
くして、そのインピーダンスを少なくすることができ、
放電ギヤツプ５で確実に放電を起こさせることができ
る。According to such a configuration, the one flange portion 20a has the third
The hole 8 for accommodating the discharge gear shown in the figure is unnecessary, and the structure can be simplified. Regarding the discharge path, as in the previous embodiment, the discharge path to the discharge gear 5 can be shortened to reduce its impedance,
The discharge gear 5 can surely cause a discharge.
以上説明したように本発明は、フランジ部間に位置する
絶縁スペーサの貫通孔内に放電ギヤツプを構成したた
め、放電経路を短かくして、そのインピーダンスを抑え
ることができ、他の部分で放電を生じさせることなく常
に放電ギヤツプで放電を起こさせることができる。しか
も放電光と放電音も抑えることができるので保守上も望
ましい。As described above, according to the present invention, since the discharge gap is formed in the through hole of the insulating spacer located between the flange portions, the discharge path can be shortened, the impedance can be suppressed, and the discharge can be generated in other portions. It is possible to always cause a discharge with the discharge gear. Moreover, discharge light and discharge noise can be suppressed, which is desirable for maintenance.
第１図は本発明の一実施例によるガス絶縁機器の要部拡
大断面図、第２図は本発明の他の実施例によるガス絶縁
機器の要部拡大断面図、第３図は第１図に示すフランジ
部の正面図、第４図は本発明の対象となるガス絶縁機器
の一例を示す概略構成図、第５図は第４図の要部拡大断
面図、第６図は第５図の要部拡大断面図である。 1,2……電極、５……放電ギヤツプ、６……貫通孔、７
……締付用ボルト穴、８……放電ギヤツプ収納用穴、13
……絶縁スペーサ、20,21……ガス管路、20a,21a……フ
ランジ部。FIG. 1 is an enlarged cross-sectional view of an essential part of a gas insulation device according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of an essential part of a gas insulation device according to another embodiment of the present invention, and FIG. 3 is FIG. FIG. 4 is a front view of the flange portion shown in FIG. 4, FIG. 4 is a schematic configuration diagram showing an example of a gas insulation device to which the present invention is directed, FIG. 5 is an enlarged sectional view of an essential part of FIG. 4, and FIG. 6 is FIG. FIG. 1,2 ... Electrodes, 5 ... Discharge gear cups, 6 ... Through holes, 7
...... Tightening bolt holes, 8 ...... Discharge gear cup storage holes, 13
…… Insulating spacers, 20,21 …… Gas lines, 20a, 21a …… Flanges.
Claims (1)
し、上記両フランジ部間を電気的に絶縁して締め付け、
上記両フランジ部間に気中の放電ギャップを構成したガ
ス絶縁機器において、少なくとも一方の上記フランジ部
に放電ギャップ収納用穴を形成し、この放電ギャップ用
収納穴に対応する位置の上記絶縁スペーサに貫通孔を形
成し、上記放電ギャップ収納用穴へ放電ギャップ長を調
整可能に取り付けた電極により上記貫通孔内に放電ギャ
ップを構成したことを特長とするガス絶縁機器。Claim: What is claimed is: 1. An insulating spacer is sandwiched between a pair of flange portions, and the flange portions are electrically insulated and tightened,
In a gas-insulated device in which an air discharge gap is formed between the flange portions, a discharge gap housing hole is formed in at least one of the flange portions, and the insulating spacer is provided at a position corresponding to the discharge gap housing hole. A gas-insulated device characterized in that a discharge gap is formed in the through hole by an electrode having a through hole formed therein and the discharge gap length being adjustablely attached to the discharge gap housing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60154296A JPH06101892B2 (en) | 1985-07-15 | 1985-07-15 | Gas insulation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60154296A JPH06101892B2 (en) | 1985-07-15 | 1985-07-15 | Gas insulation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6218912A JPS6218912A (en) | 1987-01-27 |
| JPH06101892B2 true JPH06101892B2 (en) | 1994-12-12 |
Family
ID=15581032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60154296A Expired - Lifetime JPH06101892B2 (en) | 1985-07-15 | 1985-07-15 | Gas insulation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06101892B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8103384B2 (en) | 2008-09-10 | 2012-01-24 | Mitsubishi Electric Corporation | Air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5159672B2 (en) * | 2009-03-04 | 2013-03-06 | 三菱電機株式会社 | Gas insulated switchgear |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55176024U (en) * | 1979-06-05 | 1980-12-17 | ||
| JPS6099824U (en) * | 1983-12-10 | 1985-07-08 | 日新電機株式会社 | Connections for gas insulated electrical equipment |
| JPS6212324A (en) * | 1985-07-04 | 1987-01-21 | 株式会社東芝 | Insulation ring |
-
1985
- 1985-07-15 JP JP60154296A patent/JPH06101892B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8103384B2 (en) | 2008-09-10 | 2012-01-24 | Mitsubishi Electric Corporation | Air conditioner |
| US8392026B2 (en) | 2008-09-10 | 2013-03-05 | Mitsubishi Electric Corporation | Air conditioner |
| US9435558B2 (en) | 2008-09-10 | 2016-09-06 | Mitsubishi Electric Corporation | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6218912A (en) | 1987-01-27 |
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