JPS5952821A - Oil-immersed electrical machinery and apparatus - Google Patents

Oil-immersed electrical machinery and apparatus

Info

Publication number
JPS5952821A
JPS5952821A JP57162156A JP16215682A JPS5952821A JP S5952821 A JPS5952821 A JP S5952821A JP 57162156 A JP57162156 A JP 57162156A JP 16215682 A JP16215682 A JP 16215682A JP S5952821 A JPS5952821 A JP S5952821A
Authority
JP
Japan
Prior art keywords
oil
duct
cable
split
current transformer
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.)
Granted
Application number
JP57162156A
Other languages
Japanese (ja)
Other versions
JPH037126B2 (en
Inventor
Masahiro Kobayashi
正弘 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP57162156A priority Critical patent/JPS5952821A/en
Publication of JPS5952821A publication Critical patent/JPS5952821A/en
Publication of JPH037126B2 publication Critical patent/JPH037126B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

PURPOSE:To prevent a current transformer from an effect due to the outside air, and to eliminate the danger of damage from the outside by setting up a split flange on the cable side of a cable connecting duct and disposing the current tranformer near a cable-head fitting flange in the split flange. CONSTITUTION:The cable connecting duct 1 and an oil-immersed electrical machinery and apparatus proper 2 are connected through an oil-immersed spacer 3, and the duct 1 is connected to an end plate 4 through a split duct 15 on the cable 9 side and partitioned from the air side. The duct 1 is filled with oil. The end plate 4 is supported by a supporter 11 set up on a base 12. The current transformer CT13 is disposed in the cable connecting duct 1 so as to surround a cable head 7 while being conformed to the inner diameter of the split duct 15, and the lower side of the CT13 is set up so as to form the bottom of the cable connecting duct 1. The lead of the CT13 is connected to a lead terminal 14 fitted outside the split duct 15. Accordingly, insulating strength is improved, and an influence caused by the outside air can be eliminated because the current transformer is set up in insulating oil.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、油入′電器に係り、特に線路端接続ダクトの
油中ケーブルヘッド部における変流器の増刊構造の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to oil-immersed electric appliances, and particularly to an improvement in the structure of a current transformer in an oil-immersed cable head portion of a line end connection duct.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

油入電器例えば油入変圧器の線路端には短絡事故等の変
圧器内部事故を瞬時に検出し変圧器本体の保瞳又は事故
の拡大を防止するために通常事故電流検出用の変流器が
取付けられている。Oil-immersed electrical appliancesFor example, a current transformer is usually installed at the line end of an oil-immersed transformer to detect fault currents in order to instantly detect faults inside the transformer such as short circuits, and to protect the main body of the transformer or prevent the fault from spreading. is installed.

ところで、従来のこの種油入電器は、第１図に示すよう
に、ケーブル接続ダクト【と油入電器本体２とを油中ス
ペーサ３を介して接続する構造となっている。ケーブル
接続ダクトｌは端板４を介して基台１２−七に固定され
た支持装置１１に取付けられている。そして、ケーブル
ヘッド７の一端は、ケーブルヘッド取付はフランジ８に
より端板４に取付けられており、ケーブルヘッド７の他
端はケーブルヘッド電極６、線路端リード線５、油中ス
ペーサ３に形成した接続部を経て図示しない油入電器本
体巻線に接続されている。変流器（以下ＣＴという）１
０は普通図示のようにケーブル接続ダク）ｌの下部外側
で気中側に分割ＣＴとしく０ て取付けられている。このようにＣＴ　４′は気中側に
配置されているため、耐候性および吸湿の問題あるいは
外部から損傷を受は易い等の欠点があった。By the way, this type of conventional oil-filled electrical appliance has a structure in which a cable connection duct and an oil-filled electrical appliance main body 2 are connected via an oil-immersed spacer 3, as shown in FIG. The cable connection duct 1 is attached via the end plate 4 to a support device 11 fixed to the base 12-7. One end of the cable head 7 is attached to the end plate 4 by a flange 8, and the other end of the cable head 7 is formed with a cable head electrode 6, a line end lead wire 5, and an oil submerged spacer 3. It is connected to the winding of the main body of the oil-filled electrical appliance (not shown) via a connecting portion. Current transformer (hereinafter referred to as CT) 1
0 is normally installed as a split CT on the air side outside the lower part of the cable connection duct (as shown in the figure). Since the CT 4' is disposed in the air as described above, it has disadvantages such as weather resistance and moisture absorption, and is easily damaged from the outside.

〔発明の目的〕[Purpose of the invention]

本発明は、上記の欠点を解消するためになされたもので
、その目的は、変流器を外気（二よる影響から防ぎ、且
つ外部からの損傷の恐れのないようにした油入電器を提
供するにある。The present invention was made in order to eliminate the above-mentioned drawbacks, and its purpose is to provide an oil-filled electrical appliance that protects a current transformer from the influence of the outside air and eliminates the risk of damage from the outside. There is something to do.

〔発明の概要〕[Summary of the invention]

本発明は、上記の目的を達成するだめに、油入電器の本
体巻線とＯＦまたはＣＶケーブルとを油中スペーサで油
入′電器の本体タンクとは仕切られたケーブル接続ダク
ト内に設けたケーブルヘッドを介して接続される油入電
器において、前記ケーブル接続ダクトのケーブル側に分
割フランジを取付けるとともにこの分割フランジ内で前
記ケーブルヘッドの取付フランジ近傍に変流器を配設し
たものである。In order to achieve the above object, the present invention provides a main body winding of an oil-filled electrical appliance and an OF or CV cable in a cable connection duct that is separated from the main body tank of the oil-filled electrical appliance by an oil-immersed spacer. In an oil-filled electrical appliance connected via a cable head, a split flange is attached to the cable side of the cable connection duct, and a current transformer is disposed within the split flange near the mounting flange of the cable head.

［発明の実施例〕 本発明の一実施例を第２図〜第４図を参照して説明する
。[Embodiment of the Invention] An embodiment of the present invention will be described with reference to FIGS. 2 to 4.

第２図は油入′電器本体とケーブルとの接続部分の断面
図であり、第１図と同一部分は同一符号を付している。FIG. 2 is a sectional view of the connecting portion between the oil-filled electric appliance body and the cable, and the same parts as in FIG. 1 are given the same reference numerals.

同図において、ケーブル接続ダクトｌと油入電器本体２
とは油中スペーサ３を介し”Ｃ接続され、また、ケーブ
ル９側においては分割ダクト１５を設け、これを介して
端板４に接続され気中側と区劃されている。そしてケー
ブル接続ダク）ｌ内には油が充たされている。端板４は
基台１２上に設けられた支持装置１１によって支持され
ている。ＣＴ１３は第２図に示すように、分割ダク）１
５の内径に合わせケーブルヘッド７を囲むようにケーブ
ル接続ダク）ｌ内に配設し、かっＣＴ１３の下側がケー
ブル接続ダクト１の底となるように取＋Ｊけているので
、ケーブルヘッド７に対する電界緩和が計れる。さらに
ＣＴ１３の口出しは分割ダクト１５の外側に設けた口出
し端子１４に接続する。In the same figure, the cable connection duct 1 and the oil-filled electrical appliance main body 2
and are connected to each other via an oil submerged spacer 3, and a split duct 15 is provided on the cable 9 side, through which it is connected to the end plate 4 and separated from the air side. ) is filled with oil. The end plate 4 is supported by a support device 11 provided on a base 12. As shown in FIG.
The bracket CT13 is placed inside the cable connection duct 1 to surround the cable head 7 according to the inner diameter of the cable head 7, and the lower side of the bracket CT13 is placed at the bottom of the cable connection duct 1, so that the electric field to the cable head 7 is Relaxation can be measured. Further, the outlet of the CT 13 is connected to an outlet terminal 14 provided on the outside of the divided duct 15.

第３図は本発明の他の実施例を示すもので、第２図と異
なる点は、分割ダク）１５’の内径がケーブル接続ダク
トの内径よりｃ’ｒ１３’の鉄心中程度大きくシ、これ
に伴つでＣＴ　ｌ　３’の内径がその分太きくり、−Ｃ
’ｓ−リ、その押えをケーブル接続ダク）ｌに取付けた
座で行なっている点であり、その他の構成については第
２図と同一である。また、第４図は本発明のさらに他の
実施例を示すもので、分割ダク）１５’が縦方向に長く
かつ端板４′の形状が断面凸状になつ°Ｃおり、ＣＴ１
３’を縦方向に二段に配置することかでさる点が第２図
と異なるのみでその他の構成については第２図と同一で
ある。Fig. 3 shows another embodiment of the present invention, and differs from Fig. 2 in that the inner diameter of the split duct 15' is moderately larger than the inner diameter of the cable connecting duct, and this Along with this, the inner diameter of CT l 3' becomes thicker, and -C
The other point is that the presser foot is attached to the seat attached to the cable connection duct (l), and the other configurations are the same as in Fig. 2. FIG. 4 shows still another embodiment of the present invention, in which the divided duct 15' is long in the vertical direction and the end plate 4' has a convex cross section.
The only difference from FIG. 2 is that 3' are arranged in two stages in the vertical direction, and the other configurations are the same as FIG. 2.

し発明の効果〕 以上説明しまたように、本発明に係る油入′電器によれ
は、変流器をケーブル接続ダクトに接続された分割ダク
ト内に配置構成したので、絶縁強度を向上さぜることは
勿論絶縁油中に取付りられているため外気による影響例
えばｍｉ候性、吸湿、防塵等の問題もなく、また、外部
から損傷を受けることもない。さ於に、変流器はケーブ
ルダクトを流れるシース電流による影響を受けることも
ない。[Effects of the Invention] As explained above, in the oil-filled electric appliance according to the present invention, the current transformer is arranged in the divided duct connected to the cable connection duct, so that the insulation strength can be improved. Needless to say, since it is installed in insulating oil, there is no problem of influence from the outside air, such as weather resistance, moisture absorption, dust resistance, etc., and there is no possibility of damage from the outside. In this case, the current transformer is not affected by the sheath current flowing through the cable duct.

そして、ケーブル接続ダクトを変流器取付部で分割し′
〔いるので、ケーブルヘッドまたは他の部分に組立２分
解作業が生じた場合でも分割ダクト部ダクトが分解され
るので変流器取付部に影響を与えることはほとんどない
。また変流器は、ケーブル接続ダクト内の接地部分に取
付けるため線路端リード、クープルヘッド？ａ極に対す
る電界緩和が削れ、ケーブル接続ダクト部分をコンパク
トにすることができる。さらに変流器は分割不要でかつ
油中に取付けているため特別な防止処理が不要となり、
安価にすることができる。Then, divide the cable connection duct at the current transformer mounting part.
Therefore, even if the cable head or other parts are assembled or disassembled, the divided duct section will be disassembled, so there will be little impact on the current transformer mounting section. Also, since the current transformer is installed at the grounding part in the cable connection duct, the line end lead or couple head? The electric field relaxation for the a-pole is reduced, and the cable connection duct portion can be made more compact. Furthermore, since the current transformer does not need to be separated and is installed in oil, no special preventive treatment is required.
It can be made cheap.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、従来の油中スペーサを使用した油入電器とケ
ーブル接続部分の断面図、第２図は本発明の一実施例の
断面図、第３図及び第４図はそれそそ本発明の他の実施
例の断面図である。 １・・・ケーブル接続ダクト　　２・・・油入電器本体
３・・・油中スペーサ　　４・・・端板６・・・ケーブ
ルヘッド磁極　７・・・ケーブルヘッド８・・・取付は
フランジ　　９・・・ケーブルｔｏ、１３．１３’、１
３’・・・変流器　１１・・・支持装置１２・・・基台 ＋５１１５’ｌ　１５’・・・分割フランジ第１図 第３図 第２図 第４図Fig. 1 is a cross-sectional view of an oil-filled electrical appliance using a conventional oil-filled spacer and a cable connection part, Fig. 2 is a cross-sectional view of an embodiment of the present invention, and Figs. 3 and 4 are respectively in accordance with the present invention. FIG. 3 is a sectional view of another embodiment of the invention. 1...Cable connection duct 2...Oil-filled electrical equipment body 3...Oil submerged spacer 4...End plate 6...Cable head magnetic pole 7...Cable head 8...Flange mounting 9.・・Cable to, 13.13', 1
3'...Current transformer 11...Support device 12...Base +5115'l 15'...Divided flange Fig. 1 Fig. 3 Fig. 2 Fig. 4

Claims (2)

【特許請求の範囲】[Claims] （１）油入電器の本体巻線とケーブルとを油入電器の本
体タンクに油中スペーサを介して接続されたケーブル接
続ダクト内に設けたケーブルヘッドを介して接続される
油入電器において、前記ケーブル接続ダクトのケーブル
側に分割ダクトを取付けるとともに該分割ダクト内に変
流器を配設したことを特徴とする油入電器。(1) In an oil-filled appliance in which the main body winding of the oil-filled appliance and the cable are connected via a cable head provided in a cable connection duct connected to the main body tank of the oil-filled appliance via an oil-immersed spacer, An oil-filled electrical appliance characterized in that a split duct is attached to the cable side of the cable connection duct and a current transformer is disposed within the split duct. （２）分割ダクトの内径はケーブル接続ダクトの内径よ
りも若干大きくした特許請求の範囲第１項記載の油入電
器。(2) The oil-filled electrical appliance according to claim 1, wherein the inner diameter of the divided duct is slightly larger than the inner diameter of the cable connection duct.
JP57162156A 1982-09-20 1982-09-20 Oil-immersed electrical machinery and apparatus Granted JPS5952821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57162156A JPS5952821A (en) 1982-09-20 1982-09-20 Oil-immersed electrical machinery and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57162156A JPS5952821A (en) 1982-09-20 1982-09-20 Oil-immersed electrical machinery and apparatus

Publications (2)

Publication Number Publication Date
JPS5952821A true JPS5952821A (en) 1984-03-27
JPH037126B2 JPH037126B2 (en) 1991-01-31

Family

ID=15749096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57162156A Granted JPS5952821A (en) 1982-09-20 1982-09-20 Oil-immersed electrical machinery and apparatus

Country Status (1)

Country Link
JP (1) JPS5952821A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5190412U (en) * 1975-01-20 1976-07-20
JPS52120914U (en) * 1976-03-12 1977-09-14
JPS5581933U (en) * 1978-12-01 1980-06-05
JPS55179029U (en) * 1979-06-07 1980-12-23
JPS5794925U (en) * 1980-12-02 1982-06-11

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5190412U (en) * 1975-01-20 1976-07-20
JPS52120914U (en) * 1976-03-12 1977-09-14
JPS5581933U (en) * 1978-12-01 1980-06-05
JPS55179029U (en) * 1979-06-07 1980-12-23
JPS5794925U (en) * 1980-12-02 1982-06-11

Also Published As

Publication number Publication date
JPH037126B2 (en) 1991-01-31

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