JPS63136311U

JPS63136311U -

Info

Publication number: JPS63136311U
Application number: JP2732887U
Authority: JP
Priority date: 1987-02-27
Filing date: 1987-02-27
Publication date: 1988-09-07

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す断面図、第
２図は第１図の要部断面図、第３図は従来の油入
変圧器の一例を示す断面図、第４図は第３図の要
部断面図である。１……変圧器本体、２……変圧器油タンク、３
……電気絶縁油、４……冷却器、５……送油ポン
プ、６……外部連結配管、６ａ……上部先端部、
６ｂ……下部先端部、１９……油道、１９ａ……
油道用外管、１９ｂ……油道用内管。なお、各図
中、同一符号は同一又は相当部分を示す。 Fig. 1 is a sectional view showing an embodiment of this invention, Fig. 2 is a sectional view of the main part of Fig. 1, Fig. 3 is a sectional view showing an example of a conventional oil-immersed transformer, and Fig. 4 is a sectional view showing an example of a conventional oil-immersed transformer. FIG. 3 is a sectional view of a main part of FIG. 3; 1...Transformer body, 2...Transformer oil tank, 3
...Electrical insulating oil, 4...Cooler, 5...Oil pump, 6...External connection piping, 6a...Top end,
6b...lower tip, 19...oil pipe, 19a...
Outer pipe for oil pipe, 19b...Inner pipe for oil pipe. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

An electrical equipment oil tank that houses the main body of the electrical equipment and is filled with electrical insulating oil as a cooling medium, an upper tip facing the upper part of the electrical equipment oil tank, and a lower end facing the lower part of the electrical equipment oil tank. an external connecting pipe having a section, an oil pump and a cooler attached to the external connecting pipe, one end of which is attached to the lower part of the electrical equipment main body, and the other end of which is attached to the lower tip of the external connecting pipe. an oil pipe outer pipe, which is connected to the lower tip and inserted into the oil pipe outer pipe with a certain gap from the inner wall surface of the oil pipe outer pipe; and a tube;
An oil-filled electrical device characterized in that a part of the electrical insulating oil flowing into the electrical device main body due to the operation of the oil pump flows from the gap to an outer peripheral portion of the electrical device main body.