JPH0442721U

JPH0442721U -

Info

Publication number: JPH0442721U
Application number: JP8519490U
Authority: JP
Priority date: 1990-08-10
Filing date: 1990-08-10
Publication date: 1992-04-10
Anticipated expiration: 2005-08-10
Also published as: JP2501610Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の要部の概略半部断
面図、第２図は第１図の実施例で用いる冷却ダク
トスペーサの概略斜視図、第３図は第１図の実施
例で用いる一次巻形の概略斜視図、第４図は本考
案の他の実施例の要部の概略半部断面図、第５図
Ａ及びＢは第４図の実施例で用いる電位固定板の
平面図及び一部切欠き正面図、第６図は従来のガ
ス絶縁変圧器の要部を示す概略部分断面図である
。１，１０１……鉄心、１ａ，１０１ａ……鉄心
脚部、２，１０２……二次巻線、３，１０３……
二次巻形、４，１０４……二次導体、５，１０６
……二次絶縁筒、１０５……混触防止板、６，１
０９……冷却ダクトスペーサ、１０９ａ……段差
、７，１１０……一次巻線、８，１１１……一次
巻形、１１１ａ……段差、９，１１２，１１２′
……電位固定板、１１６，１１７……一次巻線支
持スペーサ、１１８，１１９……低圧シールド部
材。 Fig. 1 is a schematic half sectional view of a main part of an embodiment of the present invention, Fig. 2 is a schematic perspective view of a cooling duct spacer used in the embodiment of Fig. 1, and Fig. 3 is an embodiment of the embodiment of Fig. 1. FIG. 4 is a schematic half sectional view of the main part of another embodiment of the present invention, and FIGS. 5A and B are diagrams of the potential fixing plate used in the embodiment of FIG. 4. A plan view, a partially cutaway front view, and FIG. 6 are schematic partial sectional views showing essential parts of a conventional gas insulated transformer. 1,101... Iron core, 1a, 101a... Iron core leg, 2,102... Secondary winding, 3,103...
Secondary winding type, 4,104...Secondary conductor, 5,106
... Secondary insulating tube, 105 ... Contact prevention plate, 6,1
09...Cooling duct spacer, 109a...Step, 7,110...Primary winding, 8,111...Primary winding shape, 111a...Step, 9,112,112'
... Potential fixing plate, 116, 117 ... Primary winding support spacer, 118, 119 ... Low voltage shield member.

Claims

[Claims for Utility Model Registration] (1) In a gas insulated transformer in which a winding conductor is wound on a potential fixing plate arranged so as not to form one turn on the outer periphery of a winding, A gas insulated transformer characterized in that steps are formed at both ends in the axial direction of the shape so as not to form a minute gas gap with the potential fixing plate. (2) The winding is arranged outside other windings via a cooling duct spacer, and steps are provided at both ends of the cooling duct spacer in the axial direction in a direction away from the winding. The gas insulated transformer according to item 1. (3) The other winding and the winding wound around the winding form are fitted concentrically to the legs of the annular core, and the winding wound around the winding form is fitted to the legs of the annular core. It is supported by a pair of winding support spacers inserted between the connecting part that connects the leg parts and the end face of the winding, and there is a space between the other winding and the winding support spacer. 3. The gas insulated transformer according to claim 2, wherein the pair of low voltage shield members are arranged so as not to form one turn. (4) The potential fixing plate includes a body formed by bending and forming a conductive plate so as not to form one turn;
4. The gas insulated transformer according to claim 3, further comprising an electric field relaxation member having a substantially circular cross-sectional shape and fixed so as not to form one turn along both ends of the body.