JPS596817U

JPS596817U - Oil-filled DC electrical equipment

Info

Publication number: JPS596817U
Application number: JP10059282U
Authority: JP
Inventors: 茂木　茂; 大島　「巌」
Original assignee: 株式会社東芝
Priority date: 1982-07-05
Filing date: 1982-07-05
Publication date: 1984-01-17

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]

第１図は従来の油入交流電気機器の概略断面図、　　　
、第２図は第１図の油入交流電気機器に直流電圧が印加
されたときの等電位線の分布図、第３図は本考案の油入
直流電気機器のブッシング周囲の絶縁構成の断面図、第
４図は絶縁油の流速と直流破壊電圧との関係を示す図で
ある。１・・・タンク本体、２・・・ブッシングポケット、３
・・・絶縁油、４・・・鉄心、５・・・コイル、６・・
・絶縁り−ド線、７・・・ブッシング、７ａ・・・ブッ
シングの油中、８ａ、　　８ｂ、　　Ｂｃ、　　Ｂｄ、
、、バリヤ、Ｂ−・・間隙。第１図＾第２図　　　　　第３図Figure 1 is a schematic cross-sectional view of a conventional oil-immersed AC electrical equipment.
, Fig. 2 is a distribution diagram of equipotential lines when a DC voltage is applied to the oil-immersed AC electrical equipment shown in Fig. 1, and Fig. 3 is a cross-section of the insulation structure around the bushing of the oil-filled DC electrical equipment of the present invention. FIG. 4 is a diagram showing the relationship between the flow velocity of insulating oil and the DC breakdown voltage. 1...Tank body, 2...Bushing pocket, 3
...Insulating oil, 4...Iron core, 5...Coil, 6...
・Insulated wire, 7...Bushing, 7a...Bushing in oil, 8a, 8b, Bc, Bd,
,, barrier, B-... gap. Figure 1 ^ Figure 2 Figure 3

Claims

[Scope of utility model registration request]

(1) An iron core and a coil wound around the iron core are stored in a tank together with insulating oil, an insulated lead wire is drawn out from the coil, and the insulated lead wire is attached to a bushing that is attached to the tank via a bushing pocket. In an oil-filled DC electric device connected to an oil-filled DC electric device, an insulating barrier having one end bent toward the bushing is disposed coaxially around the insulating tube of the bushing, and an oil-filled DC electrical device is connected to the insulating barrier and the insulating tube. An oil-filled DC electrical device characterized by having a gap.

(2) The oil gap between the insulating barrier and the insulator tube is
The oil-immersed DC electric equipment according to claim 1, which is characterized in that the flow rate of the insulating oil is set such that the DC withstand voltage is highest and the flow rate is the same as that of the insulating oil immersed.

(3) A plurality of the insulating barriers are arranged coaxially around the insulating tube of the bushing, and the length in the axial direction of the plurality of insulating barriers is made shorter as the insulating barrier is disposed on the inner side. An oil-filled DC electric device according to claim 1 of the utility model registration claim, characterized in that: