JPS6437342U

JPS6437342U -

Info

Publication number: JPS6437342U
Application number: JP13281187U
Authority: JP
Priority date: 1987-08-31
Filing date: 1987-08-31
Publication date: 1989-03-07
Also published as: JPH0454664Y2

Description

[Brief explanation of drawings]

第１図はこの考案を具体化したカツトアウトの
要部のみの断面図、第２図はカツトアウトに装着
した避雷ユニツトの断面図、第３図はカツトアウ
トの全体を示す断面図、第４図及び第５図はそれ
ぞれキヤツプ金具が破壊された状態を示す部分断
面図、第６図〜第８図はそれぞれ本考案をカツト
アウトに具体化した第二〜第四の実施例を示す要
部のみの断面図、第９図は本考案を避雷器に応用
した例を示す中央部縦断面図、第１０図は従来例
におけるギヤツプユニツトの収納構造を示す部分
断面図である。１…本体碍子、５，６…固定電極、１３…ヒユ
ーズ筒、１４…収納筒、１４ａ…内腔、１４ｂ…
段部、１４ｃ，１９ａ…テーパ面、１５…下側導
電ユニツト、１６…ギヤツプユニツト、１７…非
直線抵抗体ユニツト、１８…上側導電ユニツト、
１９…絶縁筒体、１９ｂ…底部、２１，２３…上
部（下部）放電電極、２２…耐圧電極板、２４…
ネジ筒、３１…非直線性抵抗素子、３５…導電棒
、４５…導電筒、Ｆ…反動力、Ｆ１…テーパ面に
対する垂直方向の抗力、Ｆ２…テーパ面に対する
水平方向の抗力、α…テーパ面１４ｃ，１９ａの
傾斜角。 Figure 1 is a sectional view of only the main parts of a cutout embodying this idea, Figure 2 is a sectional view of a lightning arrester unit attached to the cutout, Figure 3 is a sectional view of the entire cutout, Figures 4 and 3 are sectional views of the cutout as a whole. Figure 5 is a partial cross-sectional view showing the cap metal fittings in a destroyed state, and Figures 6 to 8 are cross-sectional views of only the main parts showing second to fourth embodiments of the present invention as cutouts. 9 is a longitudinal sectional view of the central part showing an example in which the present invention is applied to a lightning arrester, and FIG. 10 is a partial sectional view showing a storage structure of a gap unit in a conventional example. DESCRIPTION OF SYMBOLS 1... Main body insulator, 5, 6... Fixed electrode, 13... Fuse tube, 14... Storage tube, 14a... Inner cavity, 14b...
Stepped portion, 14c, 19a...Tapered surface, 15...Lower conductive unit, 16...Gap unit, 17...Non-linear resistor unit, 18...Upper conductive unit,
19... Insulating cylinder, 19b... Bottom, 21, 23... Upper (lower) discharge electrode, 22... Voltage resistant electrode plate, 24...
Threaded cylinder, 31... Non-linear resistance element, 35... Conductive rod, 45... Conductive tube, F... Reaction force, F1... Vertical drag force on the tapered surface, F2... Horizontal drag force on the tapered surface, α... Tapered surface Inclination angles of 14c and 19a.

Claims

[Scope of Claim for Utility Model Registration] In a cutout provided with a fuse tube 13 for connecting or opening fixed electrodes 5 and 6 on the power supply side and the load side provided in the main insulator 1 made of porcelain, Storage cylinder 1 having a cavity 14a
4 is integrally formed, a gap unit 16 and a non-linear resistor unit 17 are connected in series and housed in the inner cavity 14a, the gap unit 16 is connected to the fixed electrode 6 on the load side, and the gap unit 16 is connected to the fixed electrode 6 on the load side. The external opening edge of the storage tube 14 is sealed with a cap fitting 48 that can release pressure, and the outer peripheral surface of the insulating cylinder 19 constituting the gap unit 16 is made smaller in diameter as it faces toward the fixed electrodes 5 and 6. A tapered surface 19a is formed, and the storage cylinder 14 is aligned approximately with this tapered surface 19a.
A cutout characterized in that the inner circumferential surface of the gap unit 16 is formed into a tapered surface 14c, and an insulator 30 for adhesion and pressure reception is interposed between the tapered surfaces 14c and 19a to support the gap unit 16.