JPH0442897Y2 - - Google Patents
Info
- Publication number
- JPH0442897Y2 JPH0442897Y2 JP1983180041U JP18004183U JPH0442897Y2 JP H0442897 Y2 JPH0442897 Y2 JP H0442897Y2 JP 1983180041 U JP1983180041 U JP 1983180041U JP 18004183 U JP18004183 U JP 18004183U JP H0442897 Y2 JPH0442897 Y2 JP H0442897Y2
- Authority
- JP
- Japan
- Prior art keywords
- tap
- male threaded
- threaded rod
- rod
- movable contact
- 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.)
- Expired
Links
- 230000006698 induction Effects 0.000 claims description 3
- 238000010292 electrical insulation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Description
【考案の詳細な説明】
〔考案の技術分野〕
この考案は、無電圧タツプ切換器に関するもの
であり、もう少し詳しくいうと、変圧器など誘導
機器に設けられたタツプを無電圧、無電流状態で
切換えるための無電圧タツプ切換器に関するもの
である。[Detailed explanation of the invention] [Technical field of the invention] This invention relates to a voltageless tap changer. To be more specific, it is a device that can switch taps installed on induction equipment such as transformers in a no-voltage, no-current state. This invention relates to a voltageless tap changer for switching.
変圧器などの巻線に設けられたタツプに対応す
る固定接点を直線的に列設し、これを順次に切換
える無電圧タツプ切換器は、たとえば実公昭52−
37766号公報に開示されたもののように、変圧器
等のきわめて限られたスペースに配置することが
でき、有用である。
A non-voltage tap changer, in which fixed contacts corresponding to the taps provided on the windings of a transformer are arranged in a straight line and sequentially switched, is known, for example, from the Utility Model Act of 1973.
The device disclosed in Japanese Patent No. 37766 is useful because it can be placed in an extremely limited space such as a transformer.
第１図は、従来のこの種の装置を示し、変圧器
などのタツプ巻線１に設けられたッツプ２，３お
よび共通接続タツプ４は、それぞれ無電圧タツプ
切換器５の支持絶縁筒６の内壁に固定れた固定接
点７，８および９に接続されている。図示の状態
では、固定接点８と９が可動接触子１０によつて
橋絡され、可動接触子１０には、押しばね１１に
よつてタツプ３から共通接続タツプ４へ流れる電
流を通流するに十分な接触圧力が与えられてい
る。タツプ２，３，４は大地電位より高い変圧器
巻線の各位置に対応する電位を有している。 FIG. 1 shows a conventional device of this kind, in which taps 2 and 3 and a common connection tap 4 provided on a tap winding 1 of a transformer, etc., are respectively connected to a support insulating tube 6 of a voltageless tap changer 5. It is connected to fixed contacts 7, 8 and 9 fixed to the inner wall. In the state shown, the stationary contacts 8 and 9 are bridged by a movable contact 10, which is adapted to conduct a current flowing from the tap 3 to the common connection tap 4 by means of the pressure spring 11. Sufficient contact pressure is applied. Taps 2, 3 and 4 have a potential corresponding to each location of the transformer winding above ground potential.
いま、図示の状態からタツプ３をタツプ２に切
換える場合を説明すると、変圧器タンクのような
電位部分に装備された駆動装置１２の歯車１３
が、ハンドルなど適宜の機構により回転される
と、歯車１３に噛合う歯車１４が従動する。歯車
１４には駆動おねじ棒１５が螺合しており、歯車
１４の回転は駆動おねじ棒１５を矢印Ａ方向に引
上げる。駆動おねじ棒１５には回転を阻止し摺動
を許容するためのキーなどが設けられていること
はいうまでもない。可動接触子１０が取付けられ
た操作絶縁ロツド１６は駆動おねじ棒１５に直線
的に結合されており、駆動おねじ棒１５の摺動作
用によつて、同じ方向に同じ長さだけ駆動され
る。しかして、固定接点７と９が可動接触子１０
で橋絡される位置まで操作絶縁ロツド１６を移動
することによりタツプ切換が完了する。 Now, to explain the case of switching tap 3 to tap 2 from the illustrated state, the gear 13 of the drive device 12 installed in a potential part such as a transformer tank.
However, when it is rotated by a suitable mechanism such as a handle, the gear 14 meshing with the gear 13 is driven. A drive male threaded rod 15 is screwed into the gear 14, and rotation of the gear 14 pulls up the drive male threaded rod 15 in the direction of arrow A. Needless to say, the driving male threaded rod 15 is provided with a key or the like for preventing rotation and allowing sliding. The operation insulating rod 16 to which the movable contactor 10 is attached is linearly connected to the drive male threaded rod 15, and is driven in the same direction and by the same length by the sliding movement of the drive male threaded rod 15. . Therefore, the fixed contacts 7 and 9 are connected to the movable contact 10.
Tap switching is completed by moving the actuating insulating rod 16 to the position where it is bridged.
第１図において、ａと示した寸法部は固定接点
の中心間寸法であり、固定接点８の幅と固定接点
７，８，９相互間に必要な電気的絶縁寸法によつ
て決まる寸法である。同図中、ｂと示した寸法
は、固定接点７、つまりタツプ２の大地に対する
電気絶縁に必要な寸法である。したがつて、タツ
プ３から２へ切換えるためには、駆動おねじ棒１
５を寸法ａだけ摺動しなければならず、摺動した
寸法ａの分は、２点鎖線で示すように駆動装置１
２よりはみ出すことになる。このはみ出し寸法
は、寸法ａが相対的に大きい場合、つまりタツプ
間電圧が相対的に高い場合は、変圧器等にこの無
電圧タツプ切換器を収納するとき、電気的絶縁等
の面できわめて大きな障害となる。また、図示の
ものはタツプ数が２つであるが、さらにタツプ数
が多い場合は、駆動おねじ棒１５は、ａ×（タツ
プ点数−１）の距離だけ動作しなければならず、
同様な問題を惹起する欠点があつた。 In FIG. 1, the dimension section indicated as a is the center-to-center dimension of the fixed contacts, which is determined by the width of the fixed contact 8 and the electrical insulation required between the fixed contacts 7, 8, and 9. . In the figure, the dimension indicated as b is the dimension necessary for electrically insulating the fixed contact 7, that is, the tap 2, from the ground. Therefore, in order to switch from tap 3 to tap 2, drive male threaded rod 1 must be
5 must be slid by a dimension a, and the sliding dimension a is as shown by the two-dot chain line in the drive device 1.
It will protrude from 2. This protruding dimension is extremely large in terms of electrical insulation when the voltageless tap changer is housed in a transformer, etc., when dimension a is relatively large, that is, when the voltage between the taps is relatively high. It becomes an obstacle. In addition, although the number of taps shown in the figure is two, if the number of taps is even larger, the drive male threaded rod 15 must move a distance of a x (number of tap points - 1),
There were drawbacks that caused similar problems.
この考案は、以上のような従来装置の欠点を解
消しようとするもので、操作絶縁ロツドの一端に
ナツトを固定し、このナツトが螺合する駆動おね
じ棒を収納する空間を操作絶縁ロツド内に形成し
てなり、駆動おねじ棒のはみ出しを皆無とした無
電圧タツプ切換器を提供することを目的とするも
のである。
This idea is an attempt to solve the above-mentioned drawbacks of the conventional device.A nut is fixed to one end of the operation insulating rod, and a space for storing the drive male threaded rod to which the nut is screwed is created inside the operation insulating rod. The object of the present invention is to provide a voltageless tap changer in which the driving male threaded rod does not protrude at all.
以下、この考案の一実施例を第２図について説
明する。図において、駆動装置１２に回転自在に
支承された歯車１３に噛合う歯車１７に、無電圧
タツプ切換器５Ａの支持絶縁筒６から突出した駆
動おねじ棒１８の一端が同心的、固定的に結合さ
れており、駆動おねじ棒１８に螺合するナツト１
９が操作絶縁ロツド２０の一端に固定されてい
る。操作絶縁ロツド２０は、その先端部に可動接
触子１０を支持し、かつ、駆動おねじ棒１８を収
容できる空洞を有している。その他第１図と同一
符号は同一ないし相当部分を示し、説明を省略す
る。
An embodiment of this invention will be described below with reference to FIG. In the figure, one end of a driving male threaded rod 18 protruding from the supporting insulating tube 6 of the voltageless tap changer 5A is concentrically and fixedly attached to a gear 17 meshing with a gear 13 rotatably supported by a driving device 12. A nut 1 that is connected and screwed onto the drive male threaded rod 18
9 is fixed to one end of the operating insulating rod 20. The operation insulating rod 20 has a cavity at its tip that supports the movable contact 10 and can accommodate the drive male threaded rod 18. Otherwise, the same reference numerals as in FIG. 1 indicate the same or corresponding parts, and the explanation will be omitted.
次に動作について説明する。図示の状態におい
て、無電圧タツプ切換器５Ａは、可動接触子１０
が固定接点８と共通接続固定接点９を橋絡してい
るので、タツプ３で誘導機器が運転されている。
この状態からタツプ３をタツプ２へ切換えるに
は、歯車１３を回転することにより歯車１７が従
動し駆動おねじ棒１８を回動せしめる。駆動おね
じ棒１８の回転によりナツト１９が矢印Ｂ方向に
移動し、同時に操作絶縁ロツド２０も同様に移動
する。ここで、操作絶縁ロツド２０またはナツト
１９に、回転止め用のキーまたはピンが付設され
ていることは勿論である。ナツト１９が固定接点
７，８，９間ピツチ寸法ａだけ移動すれば、タツ
プ切換は完了する。 Next, the operation will be explained. In the illustrated state, the voltageless tap changer 5A has a movable contact 10
bridges the fixed contact 8 and the common connection fixed contact 9, so the induction device is operated by tap 3.
To switch tap 3 to tap 2 from this state, by rotating gear 13, gear 17 follows and causes drive male threaded rod 18 to rotate. The rotation of the drive male threaded rod 18 causes the nut 19 to move in the direction of arrow B, and at the same time, the operation insulating rod 20 also moves in the same manner. Here, it goes without saying that the operation insulating rod 20 or the nut 19 is provided with a key or pin for preventing rotation. When the nut 19 moves by the pitch dimension a between the fixed contacts 7, 8, and 9, the tap switching is completed.
なお、歯車１３，１７および駆動おねじ棒１
８、ナツト１９は、機械的強度を考慮し、金属で
形成する。また、金属と電気絶縁を要求される絶
縁物が摺動することは、摺動摩耗によつて生じる
金属粉が絶縁物表面に付着して電気絶縁性が低下
するおそれがあり、好ましくない。 In addition, the gears 13 and 17 and the drive male threaded rod 1
8. The nut 19 is made of metal in consideration of mechanical strength. Furthermore, it is undesirable for an insulator that is required to provide electrical insulation to slide against a metal because metal powder produced by sliding wear may adhere to the surface of the insulator, resulting in a decrease in electrical insulation.
以上のように、この考案は、操作絶縁ロツドに
固定したナツトに駆動おねじ棒を螺合し、駆動お
ねじ棒が操作絶縁ロツドの空洞内に出し入れされ
るようにしたので、はみ出し部分を解消して装置
の実質的な長さを短縮し、また、固定接点間には
操作絶縁ロツドが近接対向しており、固定接点と
駆動おねじ棒とは操作絶縁ロツドを介して配設さ
れているので、高い固定接点間絶縁耐力を確保す
ることができる等の効果を奏する。
As described above, in this invention, the drive male threaded rod is screwed into a nut fixed to the operating insulating rod, and the drive male threaded rod is moved in and out of the cavity of the operating insulating rod, thereby eliminating the protruding part. In addition, the operating insulating rods are closely opposed between the fixed contacts, and the fixed contacts and the driving male threaded rod are arranged via the operating insulating rods. Therefore, it is possible to ensure high dielectric strength between the fixed contacts.
第１図は従来のものの要部縦断面図、第２図は
この考案の一実施例の要部縦断面図である。
１……タツプ巻線、２，３……タツプ、４……
共通接続タツプ、５Ａ……無電圧タツプ切換器、
６……絶縁筒、７，８，９……固定接点、１０…
…可動接触子、１１……押しばね、１２……駆動
装置、１３、１７……歯車、１８……駆動おねじ
棒、１９……ナツト、２０……操作絶縁ロツド。
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 vertical cross-sectional view of a main part of a conventional device, and FIG. 2 is a vertical cross-sectional view of a main part of an embodiment of this invention. 1... Tap winding, 2, 3... Tap, 4...
Common connection tap, 5A... Voltageless tap changer,
6... Insulating tube, 7, 8, 9... Fixed contact, 10...
...Movable contact, 11...Press spring, 12...Drive device, 13, 17...Gear, 18...Drive male threaded rod, 19...Nut, 20...Operation insulating rod.
In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
配置し、前記可動接触子により高電位部にある複
数個の固定接点を切換える無電圧タツプ切換器に
おいて、絶縁筒の内壁に軸線方向に互いに間隔を
おいて配設された複数個の前記固定接点と、一端
に前記可動接触子と支持し他端にナツトと結合し
た空洞を有する操作絶縁ロツドと、前記ナツトに
螺合し回転により前記操作絶縁ロツドを軸線方向
に移動させ自身は前記空洞内を出入りする駆動お
ねじ棒を備えてなることを特徴とする無電圧タツ
プ切換器。 In a voltageless tap changer in which a movable contact drive mechanism is disposed at a ground potential part of an induction device, and a plurality of fixed contacts located at a high potential part are switched by the movable contact, the inner wall of an insulating cylinder is provided with a space between each other in the axial direction. a plurality of the fixed contacts disposed at intervals, an operating insulating rod having a cavity that supports the movable contact at one end and is connected to a nut at the other end; A voltageless tap changer comprising a driving male threaded rod that moves the rod in the axial direction and moves in and out of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18004183U JPS6088513U (en) | 1983-11-24 | 1983-11-24 | Voltageless tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18004183U JPS6088513U (en) | 1983-11-24 | 1983-11-24 | Voltageless tap changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6088513U JPS6088513U (en) | 1985-06-18 |
| JPH0442897Y2 true JPH0442897Y2 (en) | 1992-10-12 |
Family
ID=30390478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18004183U Granted JPS6088513U (en) | 1983-11-24 | 1983-11-24 | Voltageless tap changer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6088513U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5279522U (en) * | 1975-12-11 | 1977-06-14 |
-
1983
- 1983-11-24 JP JP18004183U patent/JPS6088513U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6088513U (en) | 1985-06-18 |
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