JPS6247116U

JPS6247116U -

Info

Publication number: JPS6247116U
Application number: JP13973085U
Authority: JP
Priority date: 1985-09-12
Filing date: 1985-09-12
Publication date: 1987-03-23

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す要部の側断面図
、第２図は第１図における要部の水平断面図、第
３図は実施例における静電シールド層の正面図、
第４図、第５図、第６図は静電シールド層のそれ
ぞれ異なる実施例を示す断面図、第７図はセパレ
ート形蒸発冷却変圧器の一例を示す側断面図、第
８図は改良された従来技術を示す側断面図、第９
図は従来技術における要部の水平断面図である。１……タンク、２……鉄心、２Ａ……鉄心脚、
３……外側巻線、４……内側巻線、６……凝縮液
、１２……絶縁ガス、１２Ａ……絶縁ガスギヤツ
プ、１４，１５，４５……絶縁筒、１７，１８…
…絶縁板、２０，４０……区画室、１６……パツ
キング、２１，２２，２３……絶縁バリヤ、３０
……強制循環通路、３１……冷却器、４１，５１
，５５，５６……静電シールド層、６０……蒸気
気泡を含まない絶縁液体、ｇ……絶縁ガスギヤツ
プ長。 FIG. 1 is a side sectional view of the main part showing an embodiment of the present invention, FIG. 2 is a horizontal sectional view of the main part in FIG. 1, and FIG. 3 is a front view of the electrostatic shield layer in the embodiment.
Figures 4, 5, and 6 are cross-sectional views showing different embodiments of the electrostatic shield layer, Figure 7 is a side cross-sectional view showing an example of a separate evaporative cooling transformer, and Figure 8 is an improved version of the transformer. A side sectional view showing the conventional technology, No. 9
The figure is a horizontal cross-sectional view of the main parts in the prior art. 1...tank, 2...iron core, 2A...iron core leg,
3... Outer winding, 4... Inner winding, 6... Condensate, 12... Insulating gas, 12A... Insulating gas gap, 14, 15, 45... Insulating cylinder, 17, 18...
...Insulating plate, 20, 40... Compartment, 16... Packing, 21, 22, 23... Insulating barrier, 30
... Forced circulation passage, 31 ... Cooler, 41, 51
, 55, 56... Electrostatic shield layer, 60... Insulating liquid containing no vapor bubbles, g... Insulating gas gap length.

Claims

[Scope of utility model registration request]

A cylindrical winding that is housed in a tank containing insulating gas and wound around an iron core is air-tightly connected to a pair of insulating tubes arranged on the core side and the tank side, respectively, and to both axial ends of the pair of insulating tubes. It is housed in a compartment for gas-liquid separation consisting of a flat ring-shaped insulating plate coupled to a flat ring-shaped insulating plate, and is cooled by sensible heat by a low-viscosity insulating liquid that circulates through a forced circulation passage that includes this compartment and a cooler. A stationary induction electric appliance, characterized in that an electrostatic shielding layer that does not form one turn in the circumferential direction is buried inside the insulating cylinder on the iron core side of the compartment, biased toward the iron core side.