JPS59171318U

JPS59171318U - Protection device against lightning surge for pole transformers

Info

Publication number: JPS59171318U
Application number: JP6638583U
Authority: JP
Inventors: 志知　美昭; 深尾　友則
Original assignee: 日本高圧電気株式会社
Priority date: 1983-05-02
Filing date: 1983-05-02
Publication date: 1984-11-16

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本願の実施例を示すもので第１図はり−ドレス形
ブッシングをそなえた柱上用変圧器に放電金具を取付け
た状態を示す一部破断図、第２図は第１図を矢印イ方向
よりみた一部を省略した底面図、第３図は保護装置の取
付状態を示す一部破断図、第４図は第３図におけるＡ−
Ａ断面図、第５図は取付場所の異なる他の実施例を示す
一部破断図、第６図は第５図におけるＢ−Ｂ断面図。１・・・・・・柱上用変圧器、２・・・・・・ケース、
３・・・・・・接地線、４・・・・・・ブッシング、４
ａ・・・・・・外周面、９・・・・・・引出導体、１０
・・・・・・握り、１３・・・・・・電線、１４・・・
・・・取付部材、１５・・・・・・放電金具、１７・・
・・・・限流素子ユニット、１８・・・・・・上部リー
ド線、１９・・・・・・絶縁容器、２０・・・・・・限
流素子ユニット、２４゜２８・・・・・・接続金具、Ｇ
・・・・・・放電ギャップ。＼＼　、１）一＼ど１−。・１恰）＝　　２３２５２９− 一・３−　　　第３Ｔ３！Ｊ＝＝コ −１／／＝　　８］ βThe drawings show an embodiment of the present application, and Fig. 1 is a partially cutaway view showing a state in which a discharge fitting is attached to a pole-mounted transformer equipped with a beam-dress type bushing. 3 is a partially cutaway view showing how the protective device is installed, and FIG. 4 is a bottom view with a portion omitted as seen from the
A sectional view, FIG. 5 is a partially cutaway view showing another embodiment with a different mounting location, and FIG. 6 is a BB sectional view in FIG. 5. 1... Pole transformer, 2... Case,
3...Grounding wire, 4...Bushing, 4
a...Outer peripheral surface, 9...Output conductor, 10
...Grip, 13...Electric wire, 14...
...Mounting member, 15...Discharge fitting, 17...
...Current limiting element unit, 18... Upper lead wire, 19... Insulating container, 20... Current limiting element unit, 24゜28...・Connection fittings, G
...Discharge gap. \\, 1) 1\do1-.・1) = 232529- 1.3- 3rd T3! J == co-1 //= 8 ] β

Claims

[Scope of utility model registration request]

A porcelain bushing is installed so as to penetrate inside and outside of the case, and the lead-out conductor is inserted into the bushing and fixed to the same bushing, and the lead-out conductor is located outside the case of the lead-out conductor. The leadless type bushing has a grip for connecting electric wires screwed onto the tip of the bushing, and the mounting surface of the case on the earth side located at the rear of the bushing is located in the middle of the outer circumferential surface of the bushing located outside the case. A heavy metal fitting is installed between the lead-out conductor on the charging side located at the front and a discharge gap is provided between the lead-out conductor and the lead-out conductor. A pole-mounted device having a built-in current-limiting element, and having an upper lead wire of the current-limiting element unit attached and connected via a connecting fitting to a transformer case whose lower terminal is grounded. A protection device against lightning surges for transformers.