JPS63314733A - Vacuum switch - Google Patents
Vacuum switchInfo
- Publication number
- JPS63314733A JPS63314733A JP15048087A JP15048087A JPS63314733A JP S63314733 A JPS63314733 A JP S63314733A JP 15048087 A JP15048087 A JP 15048087A JP 15048087 A JP15048087 A JP 15048087A JP S63314733 A JPS63314733 A JP S63314733A
- Authority
- JP
- Japan
- Prior art keywords
- bushing
- tube
- arc
- sheet
- vacuum
- 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
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 9
- 239000012212 insulator Substances 0.000 claims description 22
- 239000004020 conductor Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 208000003251 Pruritus Diseases 0.000 abstract 1
- 230000016507 interphase Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、相聞短絡時の碍管割れを防止した真空開閉器
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a vacuum switch which prevents insulator tube cracking in the event of a mutual short circuit.
（従来の技術）
柱上に設置される真空開閉器は、一般に第２図に示すよ
うに真空バルブ１の一部が磁器製碍管２の内部に入り込
んだ構造となっている。このため、２ＯＫＶ級の真空開
閉器においては、電気絶縁距離を大きくとる関係で開閉
器本体３が大型化するという不具合がある。この不具合
を解消する手段として、真空バルブ１を碍管２内に収納
する方策が考えられるが、真空バルブ１を碍管２内に収
納すると、相聞短絡が発生した場合にアークにより碍管
２が割れて地上へ落下する危険性がある。(Prior Art) A vacuum switch installed on a column generally has a structure in which a part of a vacuum valve 1 is inserted into a porcelain insulator tube 2, as shown in FIG. Therefore, in a 2OKV class vacuum switch, there is a problem that the switch main body 3 becomes large due to the large electrical insulation distance. One possible solution to this problem is to house the vacuum valve 1 inside the insulator tube 2. However, if the vacuum valve 1 is housed inside the insulator tube 2, if a mutual short circuit occurs, the insulator tube 2 will break due to the arc and the There is a risk of falling.
（発明が解決しようとする問題点）
以上のように従来の真空開閉器においては、真空バルブ
を碍管内に収納すると、相間短絡が発生した場合に磁器
製碍管がアークの熱的及び別械的エネルギによって破壊
される可能性があるため、真空バルブを磁器製碍管内に
収納することができなかった。(Problems to be Solved by the Invention) As described above, in the conventional vacuum switch, when the vacuum valve is housed in the insulator tube, the porcelain insulator tube is exposed to the thermal and mechanical damage caused by the arc when a phase-to-phase short circuit occurs. Vacuum valves could not be housed in porcelain insulators because they could be destroyed by energy.
本発明は、このような問題点に着目してなされたもので
、相聞短絡時にアークによる碍管の割れを防止できる真
空開閉器を提供することを目的とする。The present invention has been made in view of these problems, and an object of the present invention is to provide a vacuum switch that can prevent cracking of the insulator tube due to arcing when a mutual short circuit occurs.
［発明の構成］
（問題点を解決するための手段）
上記問題点を解決するために本発明は、磁器製碍管の内
部に機械的強度の高い絶縁筒を挿入し、この絶縁筒内に
真空バルブを収納してなることを特徴とするものである
。[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention inserts an insulating cylinder with high mechanical strength into the inside of a porcelain insulator tube, and creates a vacuum inside the insulating cylinder. It is characterized by housing a valve.
（作 用）
上記の構成とすることにより、相間短絡時に発生するア
ークの熱的及び機械的エネルギは絶縁筒で遮断され、碍
管の内面にアークの熱的及び機械的エネルギが直接影響
しないので、碍管割れを防止することができる。(Function) With the above configuration, the thermal and mechanical energy of the arc that occurs during a short circuit between phases is blocked by the insulating cylinder, and the thermal and mechanical energy of the arc does not directly affect the inner surface of the insulator tube. Insulator pipe cracking can be prevented.
（実 施 例）
以下、本発明の実施例を図面を用いて説明する。なお、
第２図と同一部分には同一符号を付し、その説明は省略
する。(Example) Hereinafter, an example of the present invention will be described using the drawings. In addition,
Components that are the same as those in FIG. 2 are given the same reference numerals, and their explanations will be omitted.
第１図は本発明による真空開閉器の一実施例を示し、こ
の真空開閉器は開閉器本体３に取付けた碍管２の中に真
空バルブ１を収納した構造となっている。上記碍管２の
内部には真空バルブ１の他に真空バルブ１を動作させる
操作ロッド４、可動導体５、フレキシブル導体６等が収
納されており、通電経路は可動導体５、フレキシブル導
体６、真空バルブ１およびモールドブッシング付ケーブ
ル７により形成されている。FIG. 1 shows an embodiment of a vacuum switch according to the present invention, and this vacuum switch has a structure in which a vacuum valve 1 is housed in an insulator tube 2 attached to a switch main body 3. Inside the insulator tube 2, in addition to the vacuum valve 1, an operating rod 4 for operating the vacuum valve 1, a movable conductor 5, a flexible conductor 6, etc. are housed. 1 and a cable 7 with a molded bushing.
また、碍管２の内部には絶縁筒８が挿入され、さらに絶
縁筒８の内面には不然性絶縁シート９が接着固定されて
いる。上記絶縁筒８は磁器より殿械的強度の高い材料（
例えばエポキシガラスクロス等）で形成され、また不然
性絶縁シート９は熱的強度の高い材料（例えば４７）化
エチレン樹脂等）で形成されている。つまり、真空バル
ブ１は絶縁筒８内に収納された構造となっている。Further, an insulating tube 8 is inserted into the inside of the insulating tube 2, and a permanent insulating sheet 9 is adhesively fixed to the inner surface of the insulating tube 8. The insulating cylinder 8 is made of a material with higher mechanical strength than porcelain (
For example, the insulating sheet 9 is made of a material with high thermal strength (for example, 47-ethylene resin, etc.). In other words, the vacuum valve 1 is housed within the insulating cylinder 8.
このような構成によると、相間短絡時に碍管２の内部に
アークが発生しても不然性絶縁シート９でアーク熱を受
け、さらに絶縁筒８で絶縁シート９の伝導熱とアークの
機械的なエネルギを遮断できるため、アークによる碍管
２の割れを防止できる。なお、実験によれば不然性絶縁
シート９（厚さ１ｍ＋の４フフ化エチレン樹脂板）のみ
の場合は碍管２に割れを生じたが、不然性絶縁シート９
と絶縁筒８（厚さ２．５Ａｌｌ１１のエポキシガラスク
ロス）とを碍管２内に挿入した場合は碍管２の割れを防
止することができた。また、適当な厚さの絶縁筒８を用
いれば絶縁筒８のみでも碍管割れを防止づ゛ることがで
きる。According to such a configuration, even if an arc occurs inside the insulating tube 2 during a phase-to-phase short circuit, the insulating sheet 9 receives the arc heat, and the insulating tube 8 absorbs the conductive heat of the insulating sheet 9 and the mechanical energy of the arc. Since the arc can be blocked, cracking of the insulator tube 2 due to the arc can be prevented. According to experiments, cracks occurred in the insulator tube 2 when only the unnatural insulating sheet 9 (a 4-fluorinated ethylene resin board with a thickness of 1 m+) was used, but the unnatural insulating sheet 9
When the insulating tube 8 (epoxy glass cloth with a thickness of 2.5 All 11) was inserted into the insulator tube 2, cracking of the insulator tube 2 could be prevented. In addition, if the insulating tube 8 has an appropriate thickness, cracking of the insulating tube can be prevented even with just the insulating tube 8.
［発明の効果コ
以上説明したように本発明によれば、相間短絡時にアー
クによる碍管割れを防止することができるので、真空バ
ルブを磁器製碍管内に収納することができ、２ＯＫＶ級
真空開閉器の小型化を図ることかできる。[Effects of the Invention] As explained above, according to the present invention, cracking of the insulator tube due to arcing during phase-to-phase short circuit can be prevented, so the vacuum valve can be housed in the porcelain insulator tube, and a 2OKV class vacuum switch It is possible to reduce the size of the
第１図は本発明による真空開閉器の一実施例を示す断面
図、第２図は従来の真空開閉器を示す断面図である。
１・・・真空開閉器、２・・・碍管、３・・・真空バル
ブ、４・・・操作ロッド、５・・・可ＤＱ体、６・・・
フレキシブル導体、７・・・モールドブッシング付ケー
ブル、８・・・絶縁筒、９・・・不然性絶縁シート。
出願人代理人 弁理士 鈴江武彦
第２図FIG. 1 is a sectional view showing an embodiment of a vacuum switch according to the present invention, and FIG. 2 is a sectional view showing a conventional vacuum switch. DESCRIPTION OF SYMBOLS 1...Vacuum switch, 2...Insulator pipe, 3...Vacuum valve, 4...Operation rod, 5...DQ possible body, 6...
Flexible conductor, 7... Cable with molded bushing, 8... Insulating tube, 9... Unnatural insulation sheet. Applicant's agent Patent attorney Takehiko Suzue Figure 2
Claims (1)
この絶縁筒内に真空バルブを収納してなることを特徴と
する真空開閉器。An insulating tube with high mechanical strength is inserted inside the porcelain insulator tube,
A vacuum switch characterized by housing a vacuum valve within this insulating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15048087A JPS63314733A (en) | 1987-06-17 | 1987-06-17 | Vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15048087A JPS63314733A (en) | 1987-06-17 | 1987-06-17 | Vacuum switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63314733A true JPS63314733A (en) | 1988-12-22 |
Family
ID=15497805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15048087A Pending JPS63314733A (en) | 1987-06-17 | 1987-06-17 | Vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63314733A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016004757A (en) * | 2014-06-19 | 2016-01-12 | パナソニックＩｐマネジメント株式会社 | Contact device, electromagnetic relay using the same, and method of manufacturing contact device |
| US10269517B2 (en) | 2014-06-19 | 2019-04-23 | Panasonic Intellectual Property Management Co., Ltd. | Contact device, electromagnetic relay using the same, and method for manufacturing contact device |
-
1987
- 1987-06-17 JP JP15048087A patent/JPS63314733A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016004757A (en) * | 2014-06-19 | 2016-01-12 | パナソニックＩｐマネジメント株式会社 | Contact device, electromagnetic relay using the same, and method of manufacturing contact device |
| US10269517B2 (en) | 2014-06-19 | 2019-04-23 | Panasonic Intellectual Property Management Co., Ltd. | Contact device, electromagnetic relay using the same, and method for manufacturing contact device |
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