JPS5993115U

JPS5993115U - Winding support device for gas-insulated stationary induction appliances

Info

Publication number: JPS5993115U
Application number: JP19007682U
Authority: JP
Inventors: 信行橋本
Original assignee: 富士電機株式会社
Priority date: 1982-12-16
Filing date: 1982-12-16
Publication date: 1984-06-25
Also published as: JPS6314418Y2

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図は公知のガス絶縁変圧器の要部の断面図、第２図
は巻線端部の拡大断面図、第３図は本考案の実施例を示
す断面図、第４図は巻線支持装置の断面図、第５図は本
考案の他の実施例を示す断面図である。図において、１．’２１・・・鉄心、２，２５・・・低
圧巻線、３，２６・・・高圧巻線、４〜６・・・絶縁筒
、７ａ〜７Ｃ・・・端部絶縁、８・・・冷却ダクト、９
・・・絶縁バリヤ、１０・・・タンク、１１・・・スペ
ーサ、１２・・・くさび状ギャップ、２′２．２３・・
・フレーム、２４・・・押圧手段、２７．２８・・・巻
線支持装置、３７・・・静電リング、３２・・・樹脂碍
子、３３ａ、３３ｂ・・・加圧リング、３４ａ、　　３
４ｂ・・・埋込み電極、３５　　〜・・・絶縁リング、
３７．４１・・・ガイドピン、３９．　　ζ・・。４２・・・ばね、４０・・・座、３６・・・絶縁ワッシ
ャ、３８．４４・・・溝である。Fig. 1 is a sectional view of the main part of a known gas insulated transformer, Fig. 2 is an enlarged sectional view of the end of the winding, Fig. 3 is a sectional view showing an embodiment of the present invention, and Fig. 4 is a sectional view of the winding. A sectional view of the support device, FIG. 5 is a sectional view showing another embodiment of the present invention. In the figure, 1. '21... Iron core, 2, 25... Low voltage winding, 3, 26... High voltage winding, 4-6... Insulation tube, 7a-7C... End insulation, 8... cooling duct, 9
... Insulation barrier, 10 ... Tank, 11 ... Spacer, 12 ... Wedge-shaped gap, 2'2.23 ...
- Frame, 24... Pressing means, 27.28... Winding support device, 37... Electrostatic ring, 32... Resin insulator, 33a, 33b... Pressure ring, 34a, 3
4b... Embedded electrode, 35 -... Insulating ring,
37.41... Guide pin, 39. ζ... 42...Spring, 40...Seat, 36...Insulating washer, 38.44...Groove.

Claims

[Scope of utility model registration request]

(1) The windings are interposed between each axial end face of the cylindrical gas-insulated winding arranged around the core leg and a pair of frames fixed to the upper and lower yokes of the core. In a winding support device that is insulated from ground potential and held between the pair of frames with a predetermined axial pressure, an electrostatic ring disposed in contact with the end surface of the winding, and an electrostatic ring on the winding side of the frame. A pressurizing ring that is rigidly arranged and receives the predetermined axial pressure from the frame, and a plurality of columnar resin insulators that are distributed and interposed in the circumferential direction between both the rings. , a gas insulated stationary induction characterized in that the resin insulator is provided with a pair of embedded electrodes embedded in each end thereof, and both embedded electrodes are electrically conductively connected to the electrostatic ring and the pressure ring, respectively. Winding support device for electrical appliances.

(2) Utility model registration Scope of claim 1 The winding support device is characterized in that the inner surface of the insulator of the embedded electrode of the resin insulator is formed into a smooth spherical crown shape. winding support device.

(3) Utility Model Registration Scope of the Claims In the winding support device as set forth in claim 1, the embedded electrode has a protrusion protruding from the end face of a resin insulator formed as a guide pin, and the guide pin is an electrostatic ring. and a winding support device for a gas-insulated stationary induction appliance, characterized in that a resin insulator is positioned by fitting into a recess provided in a pressure ring.

(4) Utility model registration The winding support device according to claim 3 is characterized in that the guide pin of the embedded electrode is electrically conductively connected to the bottom surface of the recess into which the pin fits through a metal spring. Winding support device for gas-insulated stationary induction electric appliances.

(5) Utility model registration The winding support device according to claim 1 is characterized in that the corners of the electrostatic ring and the pressure ring on opposite sides thereof are rounded with a predetermined radius of curvature. Winding support device for gas-insulated stationary induction electric appliances.

(6) In the winding support device according to claim 5 of the utility model registration, the radius of curvature of the corner of the electrostatic ring is approximately equal to the radius of curvature of the corner of the pressure ring. A winding support device for gas-insulated stationary induction appliances, characterized by:

(7) Utility Model Registration Scope of Claims In the winding support device according to claim 1, each end face of the resin insulator is subjected to a predetermined axial pressure from an electrostatic ring and a pressure ring through an insulating washer having rubber elasticity. A winding support device for a gas-insulated stationary induction electric appliance, characterized in that

(8) Utility model registration The winding support device according to claim 7, characterized in that the dielectric constant of the insulating washer is selected to be smaller than the dielectric constant of the resin insulator. Winding support device.

(9) Utility model registration The winding support device according to claim 7, characterized in that the outer diameter of the insulating washer is selected to be smaller than the outer diameter of the resin insulator. Line support device. .

(10) Utility Model Registration Scope of Claim 1 The winding support device for a gas-insulated stationary induction appliance, wherein the resin insulator is an epoxy resin insulator.