JPS644199Y2 - - Google Patents
Info
- Publication number
- JPS644199Y2 JPS644199Y2 JP12458081U JP12458081U JPS644199Y2 JP S644199 Y2 JPS644199 Y2 JP S644199Y2 JP 12458081 U JP12458081 U JP 12458081U JP 12458081 U JP12458081 U JP 12458081U JP S644199 Y2 JPS644199 Y2 JP S644199Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- holding part
- electrode
- bushing
- connecting fitting
- 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
- 239000004020 conductor Substances 0.000 claims description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Insulators (AREA)
Description
【考案の詳細な説明】
本案は高圧配電線路に使用するアレスター内蔵
形ケース入り柱上用開閉器の改良に係り、特にケ
ースを拡張することなく消弧室に形成した保持部
に対し電圧非直線性抵抗素子を一体に収納保持し
てコンパクトにまとめると同時に安価に製作でき
るようにした構造に関するものである。近年、高
圧配電線路で使用されるケース入り柱上用開閉器
には配電線路の絶縁強化対策の一環としてアレス
タをケースに内蔵したものが雷害地区において一
部試用されている。[Detailed description of the invention] This invention relates to the improvement of a cased pole-mounted switch with a built-in arrester for use in high-voltage distribution lines. The present invention relates to a structure in which a resistance element is housed and held in a compact manner, and at the same time can be manufactured at a low cost. In recent years, case-encased pole switches used on high-voltage power distribution lines with arresters built into the case have been used on a trial basis in some areas affected by lightning as a measure to strengthen the insulation of power distribution lines.
しかしこれらは特性要素を磁器製の密閉容器内
に収納しこれに上部端子とアース端子とを備えた
屋外で使用する一般形のアレスターと同じものあ
るいはこれと類似構造のアレスターをそのまゝケ
ースに内蔵するものであつた。 However, these arresters are the same as general type arresters for outdoor use, in which the characteristic elements are housed in a sealed porcelain container, which is equipped with an upper terminal and a ground terminal, or an arrester with a similar structure is placed in the case. It was built-in.
このためアレスター取付用としてケースを特別
に拡張しなければケース内に内蔵できずどうして
もケースの大形化と重量化が避けられないと言う
問題があつた。 For this reason, there was a problem in that the arrester could not be built into the case unless the case was specially expanded for mounting the arrester, which inevitably made the case larger and heavier.
また、上記のごとくすでに密閉されたケース内
で使用されるにも拘わらず屋外で使用する密閉形
アレスターを内蔵するようにしているためコスト
的にも不経済になると言う問題もあつた。 Furthermore, as mentioned above, even though the device is used in a sealed case, it has a built-in sealed arrester for use outdoors, which is uneconomical in terms of cost.
本案はこれらの諸々の点に鑑みて提案するもの
でその構成は、密閉したケース２に貫装してブツ
シング１を取付けそのケース２内に位置するブツ
シング１の端面１ａには接続金具１１、中心導体
８、固定電極１２等の導電部を設け、さらにこの
導電部の外周を覆うようにして同じく端面１ａに
取付けた合成樹脂製の成形体よりなる消弧室１４
にはその一部に袋状の保持部１４ａを一体に形成
し、さらにまたこの保持部１４ａには酸化亜鉛を
主成分とする焼結体の電圧非直線抵抗素子１５を
収納保持すると共に同保持部１４ａに収納保持し
た上記素子１５の一端を連結金具１９によつて上
記固定電極１２等の導電部に接続し、さらに上記
素子１５の他端に接続した放電電極１８をケース
内面２ａに対し直接接続ないしは放電ギヤツプｇ
を形成するようにして対向させたことを特徴とす
るアレスター内蔵形ケース入り柱上用開閉器に関
するものである。 This proposal is proposed in view of these various points, and its configuration is that the bushing 1 is inserted through a sealed case 2, and the end face 1a of the bushing 1 located inside the case 2 has a connecting fitting 11, and a center An arc extinguishing chamber 14 is provided with conductive parts such as a conductor 8 and a fixed electrode 12, and is also made of a synthetic resin molded body attached to the end surface 1a so as to cover the outer periphery of the conductive part.
A bag-shaped holding part 14a is integrally formed in a part of the holding part 14a, and a voltage nonlinear resistance element 15 made of a sintered body mainly composed of zinc oxide is housed and held in the holding part 14a. One end of the element 15 housed and held in the section 14a is connected to a conductive part such as the fixed electrode 12 through a connecting fitting 19, and the discharge electrode 18 connected to the other end of the element 15 is directly connected to the case inner surface 2a. Connection or discharge gap
The present invention relates to a pole-mounted switch with a built-in arrester and a case, which are characterized in that they are opposed to each other so as to form two sides.
以下、本案の実施例に付いて説明する。 Examples of the present invention will be described below.
１は密閉したケース２に貫装して取付けたブツ
シング、３はブツシング２の中間に位置して接着
材４によつて固着した取付用のフランジ金具、５
は取付用ボルト、６はパツキンを示す。７はケー
ス内に位置するブツシングの端面１ａに固着した
固定金具、８は貫通孔１ｂに挿通しその先端を端
面１ａ側に突出して上記固定金具７に固定した中
心導体、９は位置決め用調整ナツト、１０は〓形
の接続金具１１と中心導体８とを連結する中心導
体８に螺装した締付ナツト、１２は接続金具１１
の下面１１ａにネジ１３によつて取付接続した固
定電極、１４はブツシング１の端面１ａに位置し
て設けた固定電極１２、接続金具１１、中心導体
８、締付ナツト１０等の導電部の外周を覆うよう
にして取付けた合成樹脂製の成形体よりなる消弧
室、１４ａは消弧室１４の一部、つまり図面では
下部に突出して一体に形成した袋状の保持部であ
りこの保持部１４ａ内には円柱状あるいは四角柱
状の電圧非直線抵抗素子１５を収納保持してい
る。 1 is a bushing attached to the sealed case 2; 3 is a mounting flange fitting located in the middle of the bushing 2 and fixed by adhesive 4; 5
indicates a mounting bolt, and 6 indicates a gasket. Reference numeral 7 denotes a fixing metal fitting fixed to the end surface 1a of the bushing located inside the case, 8 a center conductor inserted into the through hole 1b and fixed to the fixing metal fitting 7 with its tip protruding toward the end surface 1a, and 9 a positioning adjustment nut. , 10 is a tightening nut screwed onto the center conductor 8 that connects the square-shaped connection fitting 11 and the center conductor 8, and 12 is the connection fitting 11.
A fixed electrode is attached and connected to the lower surface 11a of the bushing 1 by a screw 13, and 14 is the outer periphery of the conductive parts such as the fixed electrode 12 located on the end surface 1a of the bushing 1, the connecting fitting 11, the center conductor 8, and the tightening nut 10. The arc extinguishing chamber 14a is a part of the arc extinguishing chamber 14, that is, in the drawing, it is a bag-shaped holding part that is integrally formed and protrudes from the lower part. A voltage nonlinear resistance element 15 having a cylindrical or square column shape is housed and held in the inside 14a.
上記の素子１５は酸化亜鉛（ZnO）を主成分と
しこれに微量の酸化ビスマス（Bi2O3）、酸化ア
ンチモン（Sb2O3）、酸化マンガン（MnO）、酸
化コバルト（CoO）、等の金属酸化物を添加して
混合しプレス成形した後120℃〜1350℃の高温で
数時間焼成して焼結体としたもので、優れた電圧
非直線性を有する抵抗体である。１６，１７は同
素子１５の両端面に金属溶射によつて形成した電
極であり、一方の電極１６には放電電極１８が接
続され而も同電極はその先端を袋状の保持部１４
ａの最奥端に設けた***１４ｂから若干突出させ
てアース側のケース内面２ａに対向するようにし
たもので、この放電電極１８とケース内面２ａと
で放電ギヤツプｇが形成される。また素子１５の
他端の電極１７は連結金具１９を介して接続金具
１１に接続されるがこの場合、連結金具１９と電
極１７とはコイルスプリング２０により押圧接続
されている。なお、接続金具１１と連結金具１９
とは取付ネジ１３によつて接続される。２１は連
結金具１９を消弧室１４に固定するためのネジを
示す。なお、連結金具１９はバネ性および通電を
考えてリン青銅板が使用される。２２は保持部１
４ａの挿入口１４ｃを閉鎖する密閉蓋であり上記
素子１５を保持部１４ａに挿入して収納保持した
後ビス２３によつて閉鎖するようにしたもので消
弧室と同質の合成樹脂あるいはこれと同様な絶縁
部材が使用される。２４は先端が消弧室１４の細
隙部１４ｄを通過しさらにその奥に位置した固定
電極１２に接触するようにした可動電極、２５は
消弧室１４とブツシング１間に介在し導電部の一
部外周を覆うようにした筒状のゴムパツキンを示
す。 The above-described element 15 has zinc oxide (ZnO) as its main component, and contains trace amounts of bismuth oxide (Bi 2 O 3 ), antimony oxide (Sb 2 O 3 ), manganese oxide (MnO), cobalt oxide (CoO), etc. A sintered body is obtained by adding a metal oxide, mixing, press-forming, and firing at a high temperature of 120°C to 1350°C for several hours, and it is a resistor with excellent voltage nonlinearity. Reference numerals 16 and 17 denote electrodes formed by metal spraying on both end surfaces of the element 15. A discharge electrode 18 is connected to one electrode 16, and the tip of the electrode is connected to a bag-shaped holding part 14.
This discharge electrode 18 and the case inner surface 2a form a discharge gap g, which is slightly protruded from a small hole 14b provided at the innermost end of the electrode 18a and faces the case inner surface 2a on the ground side. Further, the electrode 17 at the other end of the element 15 is connected to the connecting fitting 11 via a connecting fitting 19, but in this case, the connecting fitting 19 and the electrode 17 are pressed together by a coil spring 20. In addition, the connecting fitting 11 and the connecting fitting 19
and are connected by mounting screws 13. Reference numeral 21 indicates a screw for fixing the connecting fitting 19 to the arc extinguishing chamber 14. Note that a phosphor bronze plate is used for the connecting fitting 19 in consideration of its spring properties and conductivity. 22 is the holding part 1
This is a sealing lid that closes the insertion opening 14c of the arc extinguishing chamber, and is closed with screws 23 after the element 15 is inserted into the holding part 14a and held there. Similar insulating members are used. 24 is a movable electrode whose tip passes through the narrow gap 14d of the arc extinguishing chamber 14 and comes into contact with the fixed electrode 12 located further back therein; 25 is a conductive part interposed between the arc extinguishing chamber 14 and the bushing 1; It shows a cylindrical rubber gasket that partially covers the outer periphery.
今、上記構成において雷等の異常電圧が開閉器
に侵入すれば異常電圧は放電電極１８とケース２
間に印加されるためこの両者で形成する放電ギヤ
ツプｇで閃絡が起こり放電電流は中心導体８−接
続金具１１−連結金具１９−電圧非直線抵抗素子
１５−放電電極１８−放電ギヤツプｇ−ケース２
の経路で大地に放電されるため異常電圧は直ちに
ひく、制限されて開閉器は絶縁破壊が防止され
る。 Now, in the above configuration, if abnormal voltage such as lightning enters the switch, the abnormal voltage will be transferred between the discharge electrode 18 and the case 2.
Since a flash is applied between the two, a flashover occurs in the discharge gap g formed by these two, and the discharge current is generated between the center conductor 8 - the connecting fitting 11 - the connecting fitting 19 - the voltage nonlinear resistance element 15 - the discharge electrode 18 - the discharge gap g - the case. 2
Since the abnormal voltage is discharged to the ground through the path, the abnormal voltage is immediately suppressed and is limited, preventing dielectric breakdown of the switch.
なお、平常時は素子１５が同素子と直列の放電
ギヤツプｇによつて絶縁されているため、上記の
放電経路は形成されない。また、本案の上記実施
例では素子１５に対し直列に放電ギヤツプｇを形
成しているがこの場合、同素子１５とケース２間
を直接接続してギヤツプレス（放電ギヤツプを無
くす）にすれば急峻なサージに対する応答性がさ
らに良くなることは言うまでもないことである。 Note that in normal times, since the element 15 is insulated by the discharge gap g connected in series with the element 15, the above-mentioned discharge path is not formed. In addition, in the above embodiment of the present invention, the discharge gap g is formed in series with the element 15, but in this case, if the element 15 and the case 2 are directly connected to form a gear press (eliminating the discharge gap), the steep gap can be reduced. Needless to say, the response to surges is even better.
本案は以上の構成からなり消弧室に一体に形成
した保持部に対し電圧非直線抵抗素子を収納保持
すると共に上記保持した同素子のの両端面にそれ
ぞれ設けた各電極を、一方の電極は連結金具によ
つて固定電極等の導電部に、また他方の電極はア
ースしたケースの内面に対し直接接続したりある
いは放電ギヤツプを形成して対向させるようにし
た結果、屋外用として一般に使用されている密閉
形アレスター（抵抗素子を絶縁容器に収納して密
閉したタイプ）を内蔵した従来形のケース入り柱
上用開閉器のようにアレスター取付用として特別
な空間が必要でないためこれらに比べて一段とケ
ースの小形軽量化ができるようになる。また、実
施に際しては消弧室を若干変更するだけでいゝた
め、いまゝでの組立部品である例えばケース、ブ
ツシング、固定電極、中心導体、等がそのまゝ流
用できるため比較的安価に製作できるという経済
的な特長をも持つもので実用性の高いものであ
る。 The present invention has the above-mentioned configuration, and a voltage nonlinear resistance element is housed and held in a holding part integrally formed in the arc extinguishing chamber, and each electrode is provided on both end faces of the held element, one electrode is It is commonly used for outdoor use because it is connected directly to a conductive part such as a fixed electrode using a connecting metal fitting, and the other electrode is directly connected to the inner surface of a grounded case, or it is made to face each other by forming a discharge gap. Unlike conventional cased pole-mounted switches with a built-in sealed type arrester (a type in which a resistance element is housed in an insulating container and sealed), it does not require a special space for installing the arrester, so it is much more convenient than these. The case can be made smaller and lighter. In addition, since the arc extinguishing chamber only needs to be slightly modified during implementation, the currently assembled parts, such as the case, bushings, fixed electrodes, center conductor, etc., can be used as they are, making production relatively inexpensive. It also has the economical feature of being able to do so, making it highly practical.
図面は本案の実施例であるアレスター内蔵形ケ
ース入り柱上用開閉器の要部を示す縦断面図。
１……ブツシング、１ａ……端面、２……ケー
ス、２ａ……ケース内面、８……中心導体、１１
……接続金具、１２……固定電極、１４……消弧
室、１４ａ……保持部、１５……電圧非直線抵抗
素子、１８……放電電極、１９……連結金具、ｇ
……放電ギヤツプ。
The drawing is a longitudinal sectional view showing the main parts of a cased pole switch with a built-in arrester, which is an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Bushing, 1a... End surface, 2... Case, 2a... Inner surface of case, 8... Center conductor, 11
... Connection fitting, 12 ... Fixed electrode, 14 ... Arc extinguishing chamber, 14a ... Holding part, 15 ... Voltage nonlinear resistance element, 18 ... Discharge electrode, 19 ... Connection fitting, g
...discharge gap.
Claims (1)
付けそのケース２内に位置するブツシング１の端
面１ａには接続金具１１、中心導体８、固定電極
１２等の導電部を設け、さらにこの導電部の外周
を覆うようにして同じく端面１ａに取付けた合成
樹脂製の成形体よりなる消弧室１４にはその一部
に袋状の保持部１４ａを一体に形成し、さらにま
たこの保持部１４ａには酸化亜鉛を主成分とする
焼結体の電圧非直線抵抗素子１５を収納保持する
と共に同保持部１４ａに収納保持した上記素子１
５の一端を連結金具１９によつて上記固定電極１
２等の導電部に接続し、さらに上記素子１５の他
端に接続した放電電極１８をケース内面２ａに対
し直接接続ないしは放電ギヤツプｇを形成するよ
うにして対向させたことを特徴とするアレスター
内蔵形ケース入り柱上用開閉器。 The bushing 1 is mounted through a sealed case 2, and conductive parts such as a connecting fitting 11, a center conductor 8, and a fixed electrode 12 are provided on the end face 1a of the bushing 1 located inside the case 2. The arc extinguishing chamber 14, which is made of a synthetic resin molded body and which is attached to the end surface 1a so as to cover the outer periphery thereof, is integrally formed with a bag-shaped holding part 14a in a part thereof, and furthermore, this holding part 14a has a bag-like holding part 14a. The above-mentioned element 1 houses and holds a voltage non-linear resistance element 15 made of a sintered body mainly composed of zinc oxide, and is housed and held in the same holding part 14a.
5 is connected to the fixed electrode 1 by a connecting fitting 19.
A built-in arrester characterized in that a discharge electrode 18 connected to a conductive part such as No. 2, etc. and further connected to the other end of the element 15 is directly connected to the inner surface of the case 2a or is opposed to the case inner surface 2a so as to form a discharge gap g. Pole-mounted switch in a shaped case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12458081U JPS5830241U (en) | 1981-08-22 | 1981-08-22 | Pole-mounted switch with built-in arrester case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12458081U JPS5830241U (en) | 1981-08-22 | 1981-08-22 | Pole-mounted switch with built-in arrester case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5830241U JPS5830241U (en) | 1983-02-26 |
| JPS644199Y2 true JPS644199Y2 (en) | 1989-02-03 |
Family
ID=29918444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12458081U Granted JPS5830241U (en) | 1981-08-22 | 1981-08-22 | Pole-mounted switch with built-in arrester case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830241U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59159914U (en) * | 1983-04-13 | 1984-10-26 | 日本高圧電気株式会社 | transformer protection device |
| JPS61105787A (en) * | 1984-10-29 | 1986-05-23 | Fanuc Ltd | Auxiliary storage device of portable floppy disc |
-
1981
- 1981-08-22 JP JP12458081U patent/JPS5830241U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5830241U (en) | 1983-02-26 |
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