JPS61285705A - On-load tap changer - Google Patents

On-load tap changer

Info

Publication number
JPS61285705A
JPS61285705A JP12745785A JP12745785A JPS61285705A JP S61285705 A JPS61285705 A JP S61285705A JP 12745785 A JP12745785 A JP 12745785A JP 12745785 A JP12745785 A JP 12745785A JP S61285705 A JPS61285705 A JP S61285705A
Authority
JP
Japan
Prior art keywords
movable contact
tap changer
load tap
insulating oil
semiconductor elements
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
JP12745785A
Other languages
Japanese (ja)
Other versions
JPH0511404B2 (en
Inventor
Katsuaki Ito
伊藤 克明
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12745785A priority Critical patent/JPS61285705A/en
Publication of JPS61285705A publication Critical patent/JPS61285705A/en
Publication of JPH0511404B2 publication Critical patent/JPH0511404B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To improve the cooling efficiency of semiconductor elements and current limiters, by a method wherein the semiconductor elements and the travelling contact points fixed on the driving axis to rotate the tap selection switch and the current leadout out switch stir the insulation oil by the rotation of the driving axis. CONSTITUTION:When the tap-change of the on-load tap changer is to be done, the operating mechanism 101 rotates the driving shaft 103, the quick cut off driving mechanism 20 rotates the driving shaft 30, and then the supporting frame 15 installed on the supporting body 8a is rotated. Thus the movable contact points 1a, 1b, 2a and 2b are moved and, at the same time, the semiconductor elements 3a, 3b, 3c and 3d and the current limiters 4 are rotated. Accordingly, the semiconductor elements 3a, 3b, 3c and 3d and the current limiters 4 stir the filled insulation oil, and transfer the heat generated therein to the insulation oil.

Description

【発明の詳細な説明】 【産業上の利用分野フ この発明は電流開閉素子として半導体素子を用いた負荷
時タップ切換器の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement in an on-load tap changer using a semiconductor element as a current switching element.

〔従来の技術) 第4図は特開昭51−65819号公報に示されている
従来の負荷時タップ切換器の構造を示す断面図である。
[Prior Art] FIG. 4 is a sectional view showing the structure of a conventional on-load tap changer disclosed in Japanese Unexamined Patent Publication No. 51-65819.

図において、変圧器容器(10G)の上部に突出して設
けられた密閉されたと部ケース句内には半導体素子(8
a)、(8b)、(8c)、(8d)が設置されており
、半導体素子の放熱のための絶縁油(250)を封入し
て、その絶縁油の対流により自然放熱するようになされ
ている。変圧器容器(10G)の下部には操作機構(1
)によって回動される駆動軸−及び駆動軸−の回動によ
って駆動される通電引出スイッチ(2)が配置されてい
る。また操作機構(イ)によって回動される他の駆動軸
(ロ)は駆動軸(至)の内部を貫通して配設されており
タップ選択スイッチ(1)を駆動するように構成されて
いる。さらにタップ切換時のタップ間橋絡循環電流を制
限するための限流要素(4Jが通電引出スイッチ(2)
と選択スイッチ(1)の中間部に設けられている。また
、変圧器容器(10G)の内部にも所定の絶縁油(10
1)が充填されている。
In the figure, a semiconductor element (8
a), (8b), (8c), and (8d) are installed, and insulating oil (250) for heat dissipation of semiconductor elements is sealed, and heat is naturally dissipated by convection of the insulating oil. There is. At the bottom of the transformer container (10G) is an operating mechanism (1
) and an energization pull-out switch (2) that is driven by the rotation of the drive shaft. Further, another drive shaft (B) rotated by the operating mechanism (A) is disposed to pass through the inside of the drive shaft (To), and is configured to drive the tap selection switch (1). . Furthermore, a current-limiting element (4J is the energization draw-out switch (2)
and the selection switch (1). In addition, the specified insulating oil (10G) is also applied to the inside of the transformer container (10G).
1) is filled.

上記負荷時タップ切換器が作動する場合は、操作機構(
7)によって通電引出スイッチ(2)及びタップ選択ス
イッチ(1)を回動させるが、このとき公知の切換プロ
セスにより半導体素子(8a)、(8b)、(8c)。
If the above-mentioned on-load tap changer operates, the operation mechanism (
7) rotates the energization pull-out switch (2) and the tap selection switch (1), and at this time, the semiconductor elements (8a), (8b), (8c) are rotated by a known switching process.

(3d)に電流が流れその結果発熱する。A current flows through (3d), resulting in heat generation.

(発明が解決しようとする問題点) と記のように構成された従来の負荷時タップ切換器は半
導体素子(8a)、(8b)、C3c)、(8d)及び
限流要素(4)が発生する熱を絶縁油の自然対流、及び
自然放熱によって放熱するので放熱作用が十分でなく、
半導体素子の冷却を十分有効に行なえないため、使用時
の温度上昇によってしゃ断性能に影響 −を与える問題
があった。また半導体素子の保守点検時には上部のケー
ス句内の絶縁油を抜かなければならず作業が繁雑であっ
た。
(Problems to be Solved by the Invention) The conventional on-load tap changer configured as described above has semiconductor elements (8a), (8b), C3c), (8d) and a current limiting element (4). The heat generated is radiated by natural convection and natural heat radiation of the insulating oil, so the heat radiation effect is not sufficient.
Since the semiconductor elements cannot be cooled sufficiently effectively, there is a problem in that the temperature rise during use affects the shutoff performance. Furthermore, during maintenance and inspection of semiconductor devices, it was necessary to drain the insulating oil inside the upper case, making the work complicated.

【問題点を解決するための手段フ この発明に係る負荷時タップ切換器は、可動接点を回動
させるための駆動手段に半導体素子及び限流要素を配設
して絶縁油中に浸漬している。
[Means for Solving the Problems] The on-load tap changer according to the present invention includes a driving means for rotating a movable contact, which is provided with a semiconductor element and a current limiting element, and is immersed in insulating oil. There is.

〔作用コ 軸に配設した半導体素子及び限流要素は軸の回転によっ
て絶縁油を撹拌しかつ、これら素子や要素との間に相対
的に油流が発生したことになるので半導体素子及び限流
要素は強制的に冷却される。
[The semiconductor element and current limiting element disposed on the working co-shaft stir the insulating oil due to the rotation of the shaft, and a relative oil flow is generated between the semiconductor element and current limiting element. The flow elements are forced to cool.

〔実施例) 第1図及び第2図にこの発明の負荷時タップ切換器の実
施例の縦断面図及びA−A断面図を示す。
[Embodiment] FIGS. 1 and 2 show a longitudinal sectional view and an AA sectional view of an embodiment of the on-load tap changer of the present invention.

図において変圧器容器(100)の側部に操作機構(1
01)が設けられており、操作機構(101)により回
動される駆動軸(1GB、)はその軸方向を変換する方
向変換機構(102) sζより方向変換して早切駆動
機構四を駆動するように構成されている。早切駆動機構
(イ)により回動される駆動軸(7)には支持体(8a
)が固着されている。支持体(8a)には支持枠(ト)
が設けられており、支持枠(至)には可動接点(13)
In the figure, the operating mechanism (1
01) is provided, and the drive shaft (1GB,) rotated by the operating mechanism (101) is provided with a direction changing mechanism (102) that changes the direction of the axis. is configured to do so. A support body (8a) is attached to the drive shaft (7) rotated by the quick cutting drive mechanism (a).
) is fixed. The support body (8a) has a support frame (G).
is provided, and the support frame (to) has a movable contact (13).
.

(lb)、(la)を備えた収容器(7b)及び可動接
点(2b)を備えた収容器〔7a〕が固着されており、
円筒状の隔離容器師の円周上Iζ配置されたタップ選択
スイッチ(5)に接触するように構成されている。駆動
軸−の回転中心に対して支持体(8a)と対称な位置に
設けられている他の支持体(8b)には半導体素子(8
a)、(8b)、(8c)、(8d)が設けられており
、駆動軸(至)が回転するときのバランスが適正になる
ようになされている。1対の限流要素(4)は駆動軸−
の回転中心と同心円上に配設され、半導体素子C3a)
*(8b)、(8c)、(8d)  と可動接点を連結
するようにして設けられている。それぞれの半導体素子
(8a ) e・  (8b)、(8c)、(8d) 
 は図示を省略した導線によって、@8図に結線図を示
すようにそれぞれ可動接点(la)、(lb)、(2a
)、(2b)に接続されている。可動接点(la)、(
lb)、(2a)、(2b)は導電性を有する材料でつ
くられたローラー及びローラーを軸支する軸(図示省略
)により構成されておりタップ選択スイッチ(6)に接
触するとき転動して摩擦抵抗を減少させるようになされ
ている。隔離容器−には絶縁油が充填されている。
A container (7b) equipped with (lb) and (la) and a container [7a] equipped with a movable contact (2b) are fixed,
It is configured to contact a tap selection switch (5) disposed on the circumference of the cylindrical isolation vessel. A semiconductor element (8) is mounted on another support (8b) provided at a position symmetrical to the support (8a) with respect to the rotation center of the drive shaft.
a), (8b), (8c), and (8d) are provided to ensure proper balance when the drive shaft (to) rotates. A pair of current limiting elements (4) are connected to the drive shaft -
The semiconductor element C3a) is arranged concentrically with the rotation center of the semiconductor element C3a).
*(8b), (8c), (8d) are provided to connect the movable contacts. Respective semiconductor elements (8a) e・ (8b), (8c), (8d)
are connected to movable contacts (la), (lb), (2a) by conducting wires (not shown), respectively, as shown in the wiring diagram in Figure
), (2b). Movable contact (la), (
lb), (2a), and (2b) are composed of a roller made of a conductive material and a shaft (not shown) that supports the roller, and when it comes into contact with the tap selection switch (6), it rolls. It is designed to reduce frictional resistance. The isolation container is filled with insulating oil.

次に動作について説明する。この負荷時タップ切換器の
タップ切換を行なうときは、操作機構(101)によっ
て駆動軸(108)を回動させると早切駆動機構四によ
って駆動軸(7)が回転し、支持体(8a)fζ設けら
れた支持枠(ト)を回動させて可動接点(la)、(l
b)、(2a)  及び(2b)を移動させるとともに
支持体(8b)に設けられた半導体素子(8a)、(8
b)。
Next, the operation will be explained. When changing the taps of this on-load tap changer, when the drive shaft (108) is rotated by the operation mechanism (101), the drive shaft (7) is rotated by the quick-cut drive mechanism 4, and the support body (8a) is rotated. By rotating the support frame (g) provided with fζ, the movable contacts (la), (l
b), (2a) and (2b) are moved and the semiconductor elements (8a) and (8) provided on the support body (8b) are moved.
b).

(8c)、(Jid)及び限流要素(4)を回動させる
。その結果半導体素子C8m)、C8b)、C3c)、
C3d)及び限流要素(4)は充填された絶縁油を撹拌
しそれらに発生した熱を絶縁油に伝達させる。限流要素
(4)が例えば酸化亜鉛素子を用いて構成される場合で
も上記に示すように構成することができる。また保守点
検のさいは、駆動機構(ホ)及び駆動軸曽を上方に引と
げ同時に引上げることができるので従来例の上部ケース
の場合のように絶縁油を抜く必要はない。
(8c), (Jid) and the current limiting element (4) are rotated. As a result, semiconductor elements C8m), C8b), C3c),
C3d) and the current limiting element (4) stir the filled insulating oil and transfer the heat generated therein to the insulating oil. Even when the current limiting element (4) is constructed using, for example, a zinc oxide element, it can be constructed as shown above. Furthermore, during maintenance and inspection, the drive mechanism (e) and the drive shaft can be pulled upward at the same time, so there is no need to drain the insulating oil as in the case of the conventional upper case.

(発明の効果) 以上のようにこの発明によればタップ選択スイッチ及び
電流引出スイッチを回動する駆動軸に固定された半導体
素子及び可動接点が駆動軸の回動によって絶縁油をかく
はんするので半導体素子及び限流要素の冷却効果が高く
なる。また保守点検時には前記に示すとおり絶縁油を抜
く必要がないので作業が容易に行なえる。
(Effects of the Invention) As described above, according to the present invention, the semiconductor element and the movable contact fixed to the drive shaft that rotates the tap selection switch and the current draw switch agitate the insulating oil by the rotation of the drive shaft. The cooling effect of the element and current limiting element is enhanced. Furthermore, during maintenance and inspection, there is no need to drain the insulating oil as described above, making the work easier.

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

第1図は本発明の負荷時タップ切換器の縦断面図、第2
図は本発明の負荷時タップ切換器の横断面図、第8図は
本発明の負荷時タップ切換器の接続図、第4図は従来の
技術による負荷時タップ切換器の縦断面図である。 (la)、(lb)、(2a)、(2b) :可動接点
、 (8a)、(8b)(8c)、(ad) :半導体
素子、(4):限流要素、<():駆動軸、(25G)
 :絶縁油
Fig. 1 is a longitudinal sectional view of the on-load tap changer of the present invention, Fig.
FIG. 8 is a cross-sectional view of the on-load tap changer of the present invention, FIG. 8 is a connection diagram of the on-load tap changer of the present invention, and FIG. 4 is a longitudinal cross-sectional view of the on-load tap changer according to the prior art. . (la), (lb), (2a), (2b): Movable contact, (8a), (8b) (8c), (ad): Semiconductor element, (4): Current-limiting element, <(): Drive Axis, (25G)
: Insulating oil

Claims (1)

【特許請求の範囲】 1、絶縁油中に浸漬されている可動接点、上記可動接点
を回動させるための駆動手段、上記絶縁油中に浸漬され
上記駆動手段に設けられて絶縁油を撹拌するように駆動
される半導体素子及び限流要素を具備する負荷時タップ
切換器。 2、可動接点は駆動手段に配設し、駆動手段の回転中心
に対して上記可動接点と対称な位置に半導体素子を配設
した特許請求の範囲第1項の記載の負荷時タップ切換器
。 3、限流要素は駆動手段の回転中心の同心円上に半導体
素子と可動接点を連結するように配設された特許請求の
範囲第1項記載の負荷時タップ切換器。 4、可動接点は導電性を有する材質のローラー及び軸に
よつて転動可能に構成されている特許請求の範囲第1項
記載の負荷時タップ切換器。 5、可動接点、半導体素子、限流要素は駆動手段ととも
に一体として絶縁油中から引揚げる手段を具備する特許
請求の範囲第1項記載の負荷時タップ切換器。 6、駆動手段は可動接点に高速回動動作を与える早切駆
動手段を有する特許請求の範囲第1項記載の負荷時タッ
プ切換器。
[Claims] 1. A movable contact immersed in insulating oil, a driving means for rotating the movable contact, and a movable contact immersed in the insulating oil and provided on the driving means to agitate the insulating oil. An on-load tap changer comprising a semiconductor element and a current-limiting element that are driven as follows. 2. The on-load tap changer according to claim 1, wherein the movable contact is disposed on a drive means, and a semiconductor element is disposed at a position symmetrical to the movable contact with respect to the center of rotation of the drive means. 3. The on-load tap changer according to claim 1, wherein the current limiting element is disposed on a concentric circle of the rotation center of the drive means to connect the semiconductor element and the movable contact. 4. The on-load tap changer according to claim 1, wherein the movable contact is configured to be rotatable by a roller and shaft made of conductive material. 5. The on-load tap changer according to claim 1, further comprising a means for lifting the movable contact, the semiconductor element, and the current limiting element together with the drive means from the insulating oil. 6. The on-load tap changer according to claim 1, wherein the drive means has a quick-cut drive means for imparting high-speed rotational motion to the movable contact.
JP12745785A 1985-06-12 1985-06-12 On-load tap changer Granted JPS61285705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12745785A JPS61285705A (en) 1985-06-12 1985-06-12 On-load tap changer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12745785A JPS61285705A (en) 1985-06-12 1985-06-12 On-load tap changer

Publications (2)

Publication Number Publication Date
JPS61285705A true JPS61285705A (en) 1986-12-16
JPH0511404B2 JPH0511404B2 (en) 1993-02-15

Family

ID=14960400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12745785A Granted JPS61285705A (en) 1985-06-12 1985-06-12 On-load tap changer

Country Status (1)

Country Link
JP (1) JPS61285705A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536261Y2 (en) * 1987-11-19 1993-09-14
JP2012523680A (en) * 2009-04-09 2012-10-04 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング On-load tap changer with semiconductor switching element
CN112700951A (en) * 2021-01-12 2021-04-23 张艳艳 Integrated radiator for oil-immersed power equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524330A (en) * 1975-06-24 1977-01-13 Nitto Seiko Co Ltd Volleyball toss lifter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524330A (en) * 1975-06-24 1977-01-13 Nitto Seiko Co Ltd Volleyball toss lifter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536261Y2 (en) * 1987-11-19 1993-09-14
JP2012523680A (en) * 2009-04-09 2012-10-04 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング On-load tap changer with semiconductor switching element
CN112700951A (en) * 2021-01-12 2021-04-23 张艳艳 Integrated radiator for oil-immersed power equipment
CN112700951B (en) * 2021-01-12 2021-10-22 大唐万宁天然气发电有限责任公司 Integrated radiator for oil-immersed power equipment

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Publication number Publication date
JPH0511404B2 (en) 1993-02-15

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