JPS59189225U

JPS59189225U - oil immersed current transformer

Info

Publication number: JPS59189225U
Application number: JP8462183U
Authority: JP
Inventors: 坂野　佳宏; 屋代　忠雄; 大薮　務
Original assignee: 日新電機株式会社
Priority date: 1983-06-03
Filing date: 1983-06-03
Publication date: 1984-12-15
Also published as: JPH0215309Y2

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 the drawing]

第１図は本考案による油入変流器の実施例を示す断面図
、第２図ａとｂおよび第３図ａとｂは半円形断面の導体
および矩形断面の導体によりそれぞれ構成されたヘアピ
ン形コイル素子の平面図と正面図、第４図ａとｂはコイ
ル素体を示す平面図と正面図、第５図は一次コイルに二
次巻線と鉄心を装着した状態を示す断面図、第６図はコ
イル素子相互間およびコイル素子から一次引出端子への
接続状態を示す説明図、第７図および第８図は一次コイ
ルを半円形断面と矩形断面の各導体よりなるコイル素子
を組合わせた場合および半円形断面導体のコイル素子の
みの場合の第１図における切断線Ｉ−Ｉ’による断面図
、第９図および第１０図は導体に油溝および油導孔を設
けた状態を示す断面図である。１・・・−次コイル、６・・・導体（半円形断面）、８
・・・導体（矩形断面）、７．　７Ａ、　　７Ｂ、　　
９．　９Ａ。９Ｂ・・・コイル素子、１０・・・コイル間絶縁、１１
・・・主絶縁、１２・・・コイル素体、１３・・・コイ
ル素子間接続導体。Fig. 1 is a cross-sectional view showing an embodiment of the oil-immersed current transformer according to the present invention, Fig. 2 a and b and Fig. 3 a and b are hairpins constructed of a conductor with a semicircular cross section and a conductor with a rectangular cross section, respectively. 4a and 4b are plan views and front views showing the coil body, and FIG. 5 is a sectional view showing the state in which the secondary winding and iron core are attached to the primary coil. Figure 6 is an explanatory diagram showing the connections between coil elements and from the coil elements to the primary lead-out terminal, and Figures 7 and 8 show how the primary coil is assembled into coil elements consisting of conductors with a semicircular cross section and a rectangular cross section. A sectional view taken along cutting line II' in Fig. 1 in the case of the combined case and the case of only a coil element with a semicircular cross-sectional conductor, and Figs. 9 and 10 show the state in which oil grooves and oil guide holes are provided in the conductor. FIG. 1... -order coil, 6... conductor (semicircular cross section), 8
...Conductor (rectangular cross section), 7. 7A, 7B,
9. 9A. 9B...Coil element, 10...Insulation between coils, 11
... Main insulation, 12 ... Coil element body, 13 ... Connection conductor between coil elements.

Claims

[Scope of utility model registration request]

(1) Two first conductors each having the same semicircular cross section are formed into the same hairpin shape bent in the diameter direction of the semicircular cross section, and are arranged with the diameter portions of the semicircular cross section facing each other. and a second conductor having a rectangular cross section whose two opposing sides are the same length as the diameter of the semicircular cross section of the first conductor are bent along the two opposing sides. at least one second coil element formed in the same hairpin shape as the first coil element and inserted between the opposing first coil elements; and integrally applied to the first and second coil elements. After installing an iron core around which a secondary coil is wound around a coil body consisting of the main insulation, the first and second coil elements, and the main insulation, the and a connecting conductor connecting between the second coil element and the series/parallel switch, and constitute a primary coil, and the two first coil elements and at least one second coil element are combined to have an oval cross section. 1. An oil-immersed current transformer characterized in that the transformer is insulated from each other except by the connecting conductor.

(2) The oil-immersed current transformer according to claim 1, wherein the first and second conductors have oil grooves or oil guide holes.