JPH03112920U - - Google Patents

Info

Publication number
JPH03112920U
JPH03112920U JP2143690U JP2143690U JPH03112920U JP H03112920 U JPH03112920 U JP H03112920U JP 2143690 U JP2143690 U JP 2143690U JP 2143690 U JP2143690 U JP 2143690U JP H03112920 U JPH03112920 U JP H03112920U
Authority
JP
Japan
Prior art keywords
case
wavelength
length
type transformer
dry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2143690U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP2143690U priority Critical patent/JPH03112920U/ja
Publication of JPH03112920U publication Critical patent/JPH03112920U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Regulation Of General Use Transformers (AREA)

Description

【図面の簡単な説明】
第1図は本考案の第一実施例を示す横断面正面
図、第2図は第1図の部分図、第3図は減音効果
を説明する図、第4図は従来例と本考案の各実施
例における減音効果を示した図、第5図は本考案
の第2実施例を示す要部断面図、第6図は本考案
の第3実施例を示す要部断面図である。 1……ケース、2……ケースの側板、3……ケ
ースの底板、4……ケースの天井板、5……変圧
器本体、6……コイル、7……上窓、8……下窓
、9……膨張管部、10……尾管。

Claims (1)

    【実用新案登録請求の範囲】
  1. 乾式変圧器本体を収納するケースに通風窓を設
    けた低騒音乾式変圧器において、前記ケース内部
    を伝搬する所定の周波数を外す波長の1/4波長の
    奇数倍の長さに1.2倍した長さを有する膨張管
    部と、1/2波長の長さを持つ尾管を前記ケースの
    通風窓に設けたことを特徴とする低騒音乾式変圧
    器。
JP2143690U 1990-03-05 1990-03-05 Pending JPH03112920U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2143690U JPH03112920U (ja) 1990-03-05 1990-03-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2143690U JPH03112920U (ja) 1990-03-05 1990-03-05

Publications (1)

Publication Number Publication Date
JPH03112920U true JPH03112920U (ja) 1991-11-19

Family

ID=31524484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2143690U Pending JPH03112920U (ja) 1990-03-05 1990-03-05

Country Status (1)

Country Link
JP (1) JPH03112920U (ja)

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