JPS6245106A - Load tap changing transformer with intermediate tap - Google Patents

Load tap changing transformer with intermediate tap

Info

Publication number
JPS6245106A
JPS6245106A JP61192989A JP19298986A JPS6245106A JP S6245106 A JPS6245106 A JP S6245106A JP 61192989 A JP61192989 A JP 61192989A JP 19298986 A JP19298986 A JP 19298986A JP S6245106 A JPS6245106 A JP S6245106A
Authority
JP
Japan
Prior art keywords
tap
contact
winding
contacts
load
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
JP61192989A
Other languages
Japanese (ja)
Other versions
JPH0646615B2 (en
Inventor
カルル・シユテンツエル
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.)
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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 Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Publication of JPS6245106A publication Critical patent/JPS6245106A/en
Publication of JPH0646615B2 publication Critical patent/JPH0646615B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Contacts (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

1. Tapped transformer, in which the winding of each phase is split in its centre and each winding part (W1, W2) is provided from this centre outwards with several taps (1 to 3, 4 to 6), which are switchable in and out in sequence by means of a selector switch, to the stationary tap contacts (K1 to K6) - arranged in a circle - of which the taps (1 to 6) are connected and the movable contacts (10) of which are pivotable from tap contact (K1 to K6) to tap contact (K1 to K6) about the center of the circle, characterised thereby, that the selector switch is a load diverter switch, which is operable under load and in which the taps (1, 2, 3 or 6, 5, 4) of both the winding parts (W1, W2) are connected in opposite sequence to the stationary contacts (K1, K2, K3 or K6, K5, K4) and in which the movable contacts (10) are constantly in engagement with an annular lead-out contact (14, 15), wherein the annular lead-out contact is subdivided into two parts (14, 15), the first part (14) of which is associated with the tap contacts (K1, K2, K3) of the first winding part (W1) and the second part (15) of which is associated with the tap contacts (K4, K5, K6) of the second winding part (W2), wherein the first part (14) of the lead-out contact is electrically connected with the last tap (4) - as seen from the centre (M) - of the second winding part (W2), while the second part (15) of the lead-out contact is connected with the first tap (3) - as seen from the centre - of the first winding part (W1), and wherein the movable contacts (10), simultaneously with their change from the tap contact (K3) of the first tap (3) of the first winding part (W1) to the tap contact (K4) of the last tap of the second winding part (W2), change without interruption from the first part (14) to the second part (15) of the lead-out contact.

Description

【発明の詳細な説明】 本発明は、特許請求の範囲第１項の前段部分に記載の構
成を有する負荷時タップ切換変圧器に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an on-load tap-changing transformer having the configuration described in the first part of claim 1.

この種のタップ切換変圧器は良く知られているように、
通電していない変圧器の状態で操作出来る中間タップ切
換器を保有している。それ放電源を入れるのにこの変圧
器では必ず電源を切らなくてはならない。エネルギー密
度を高め、内部結線を強める電力供給網の近代化の過程
にあって、現状の供給網に負荷時タップ切換変圧器、つ
まり負荷に電力を供給しながら電圧調整が可能な変圧器
をさらに多く設置する必要性がある。切換タップのある
変圧器を負荷時においても制御可能な変圧器に交換する
ことは非常に有益なことである。それ故この種の変圧器
では既存の無負荷じタップ切換を負荷時タップ切換選択
器に取り替える努力がなされている。それにもかかわら
ず中間タップのある変圧器では別である。なぜなら各相
ごとに２個の個別タップその都度接続しているからであ
る。この場合、各相ごとに２個の負荷選択器又は１個の
２極負荷選択器を挿入する必要がある。このことは大変
有用であるが、往々にして負荷選択器を収納させる容積
上の余裕がないため失敗することがある。As this type of tap-changing transformer is well known,
It has an intermediate tap changer that can be operated when the transformer is not energized. In order to turn on the discharge power, this transformer always has to turn off the power. In the process of modernizing the power grid to increase energy density and strengthen interconnections, the current grid is being equipped with more on-load tap-changing transformers, i.e. transformers that can regulate voltage while supplying power to the load. It is necessary to install many. It would be very advantageous to replace transformers with switching taps by transformers that can be controlled even under load. Efforts are therefore being made to replace existing no-load tap-changing with on-load tap-changing selectors in transformers of this type. However, transformers with intermediate taps are different. This is because two individual taps are connected in each case for each phase. In this case, it is necessary to insert two load selectors or one bipolar load selector for each phase. Although this is very useful, it often fails because there is not enough volume to accommodate the load selector.

それ故、改造の可能性、殊に中間タップ切換器のある変
圧器で製造費と収納スペースに関して著しい改良するこ
とが本発明の課題である。It is therefore an object of the present invention to significantly improve the retrofit possibilities, especially for transformers with intermediate tap changers, with regard to production costs and storage space.

この課題は特許請求の範囲第１項の特徴部分に記載の負
荷時タップ切換変圧器により独創的に解決出来る。This problem can be solved in an original manner by the on-load tap-changing transformer described in the characterizing part of claim 1.

本発明の主要部は中間タップ付負荷時タップ変圧器を改
造するために既存の方式の選択器に手を加えることが出
来ることを示している。各相ごとに２個の負荷選択器な
いしは１個の２極負荷選択器を設置することはそれ程必
要なことではない。本来のタップ切換器に代えて、変圧
器の中に余り大きな改造を入れないで負荷選択器を設置
出来る。又増設形の負荷選択器を導入することも可能で
ある。The main part of the invention shows that existing types of selectors can be modified to retrofit mid-tap on-load tap transformers. It is not so necessary to install two load selectors or one bipolar load selector for each phase. A load selector can be installed in place of the original tap changer without making too much modification to the transformer. It is also possible to introduce an additional load selector.

１　　　　　　　　特許請求の範囲第２項は負荷選択器
を役立てるため実用的な発展を与えている。1 Claim 2 provides a practical development for the use of load selectors.

本発明の実施例を模式的な回路である第１図および第２
図に示す。Embodiments of the present invention are illustrated in FIGS. 1 and 2, which are schematic circuits.
As shown in the figure.

明らかなようにタップ切換変圧器は２個の分割巻線と中
間Ｍに対して各々、３個のタップ１．２．３及び４．５
．６を保有している。これ等のタップは負荷選択器の固
定されているタップ接触子Ｋｌ　、Ｋ２　、Ｋ３ないし
はに４　、Ｋ５、Ｋ６にそれぞれ接続されている。タッ
プ接触子に１からに６はよく行われているように環状に
配置されている。負荷選択器は１個の可動接触子装置１
０を保有し、この装置は円の中心に対してタップ接触子
を旋回可能にしている。この可動接触子装置は主接触子
１１と２個の抵抗接触子１２と１個の摺動接触子１３が
ら成っている。この摺動接触子は２分割環状案内接触子
１４．１５に接続されている。この場合、主接触子１１
は摺動接触子１３に直接接続されていて、他方抵抗接触
子１２はそれぞれ保護抵抗１６を中間結線しである摺動
接触子１３に接続されている。環状案内接触子は先述の
ように２個より成り、この場合一番目の部分１４はタッ
プ接触子に１からに３に付属していて、分割巻線Ｗ２の
中心よりずれているタップ４に接続されている。一方案
内接触子の二番目の部分１５はタップ接触子に４　、Ｋ
５　、Ｋ６に接続されていて、第１分割巻線Ｗ１の中心
に近いタップ３に接続されている。As can be seen, the tap-changing transformer has two split windings and three taps 1, 2, 3 and 4, 5 for the intermediate M, respectively.
．． I own 6. These taps are respectively connected to fixed tap contacts Kl, K2, K3 or Ni4, K5, K6 of the load selector. The tap contacts 1 to 6 are arranged in a ring as is common practice. The load selector is one movable contact device 1
0, the device allows the tap contact to pivot about the center of the circle. This movable contactor device consists of a main contactor 11, two resistance contacts 12, and one sliding contactor 13. This sliding contact is connected to a two-part annular guide contact 14.15. In this case, the main contact 11
are directly connected to the sliding contact 13, while the resistance contacts 12 are respectively connected to the sliding contact 13 with a protective resistor 16 intermediately connected. The annular guide contact consists of two pieces as mentioned above, in this case the first part 14 is attached to the tap contact 1 to 3 and is connected to the tap 4 which is offset from the center of the split winding W2. has been done. On the other hand, the second part 15 of the guide contact is connected to the tap contact 4, K
5 and K6, and is connected to the tap 3 near the center of the first divided winding W1.

第１図に示した結線では、低電圧導入時のものである。The wiring shown in FIG. 1 is for low voltage introduction.

電流の流れはタップ１からタップ接触子に１、主接触子
１１、摺動接触子１３、案内接触子１４を経由してタッ
プ４に至る。これ等のタップ間にある分割巻線は全て短
絡される。The current flows from the tap 1 to the tap 4 via the tap contact 1, the main contact 11, the sliding contact 13, and the guide contact 14. All split windings between these taps are shorted.

次に高電圧に切換えるのには、可動接触子装置１０をタ
ップ接触子に１からに２に動かす。かくして公知の方法
で両タップ接触子に１とに２の間を瞬時に橋絡すること
になる。このとき抵抗接触子１２はタップ接触子に１に
留まっていて、他方の抵抗接触子１２はタップ接触子に
２にすでに達している（第２図参照）。可動接触子装置
１０は夕・７ブ接触子に２の動作位置来るやいなや、タ
ップ１と２の間にある分割巻線を短絡し、それに応じて
負荷時タップ切換変圧器の電圧は上昇する。更にタップ
接触子に３に切換えるとタップ接触子２と３の間分割巻
線が短絡され、更に高い電圧上昇となる。第２図により
可動接触子１０はタップ接触子に３からに４への切換を
示している。この切換により摺動接触子１３は案内接触
子１４から１５に切換ねる。To then switch to a higher voltage, move the movable contact device 10 from tap contact 1 to tap contact 2. This results in an instantaneous bridge between tap contacts 1 and 2 in a known manner. At this time, resistance contact 12 remains at tap contact 1, and the other resistance contact 12 has already reached tap contact 2 (see FIG. 2). As soon as the movable contact device 10 reaches the operating position of the second contactor 2, it short-circuits the split winding between taps 1 and 2, and the voltage of the on-load tap-changing transformer increases accordingly. Furthermore, when the tap contactor is switched to 3, the split winding between tap contacts 2 and 3 is short-circuited, resulting in an even higher voltage rise. FIG. 2 shows the changeover of the movable contact 10 from 3 to 4 tap contacts. This switching causes the sliding contact 13 to switch from the guide contact 14 to 15.

電流はタップ３からタップ接触子に３と案内接触子１４
を経由しタップ４に流れる。更に上記の切換操作により
電流はタップ３から案内接触子１５とタップ接触子に４
を経由してタップ４に流れる。この開閉手順により負荷
時タップ切換変圧器には電圧変動を与えていない。引き
続く開閉手順により可動接触子装置はタップ接触子に４
からに５に切換わる。この間タップ４と５の間にある分
割巻線を短絡し更に電圧上昇を得ることになる。最後に
可動接触子装置１０がタップ接触子６に達すると最高電
圧が得られる。Current flows from tap 3 to tap contact 3 and guide contact 14
Flows to tap 4 via . Furthermore, the above switching operation causes the current to flow from tap 3 to guide contact 15 and tap contact 4.
Flows to tap 4 via . Due to this opening/closing procedure, voltage fluctuations are not applied to the on-load tap change transformer. Subsequent opening and closing procedures cause the movable contact device to become a tap contactor with 4
Then it switches to 5. During this time, the divided winding between taps 4 and 5 is short-circuited to further increase the voltage. Finally, when the movable contact device 10 reaches the tap contact 6, the highest voltage is obtained.

可動接触子装置をタップ接触子に３からに４に切換える
と、１部の電流が両案内接触子１４．１５にも流れるた
め、摺動接触子１３が案内接触子１４から１５に同時に
切換ねっても、電流損失は生じない。したがって、案内
接触子１４．１５の対応する端部１７と慴動接触子１３
の端部１８にも耐弧性材料が使用される。When switching the movable contact arrangement from tap contacts 3 to 4, a portion of the current also flows through both guide contacts 14, 15, so that sliding contact 13 does not switch simultaneously to guide contacts 14 and 15. However, no current loss occurs. Therefore, the corresponding ends 17 of the guide contacts 14.15 and the sliding contacts 13
An arc-resistant material is also used for the end portion 18 of.

ここに示した模式図では、全ての接触子が同一平面にあ
るが、実際の施工ではこの状況にある必要はないことは
明らかである。例えば、案内接触子１４．１５を環状に
固定して配置したタップ接触子に１からに６の上部又は
下部の同一平面に置くこともできる。又可動接触子を環
状にすることもできる。更にこの配置は決して図示した
タップ数に制限されることはない。In the schematic diagram shown here, all the contacts are in the same plane, but it is clear that this situation does not have to be the case in actual construction. For example, the guide contacts 14, 15 can be placed in the same plane above or below the annularly fixedly arranged tap contacts 1 to 6. Moreover, the movable contact can also be annular. Furthermore, this arrangement is in no way limited to the number of taps shown.

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

第１図は操作位置がタップ１にあるときの結線図（最低
電圧投入時）、第２図はタップ３からタップ４に切換え
る途中の結線図である。 図中符号の対応 Ｗｌ　、Ｗ２　　：分割巻線 Ｍ：巻線の中央位置 に１、Ｋ２）Ｋ３、Ｋ４、Ｋ５、Ｋ６ ：固定接触子 １、２．３．４．５．６：巻線のタップ１０：可動接触
子装置　　１１：主接触子１２：抵抗接触子　　　　１
３：摺動接触子１６：保護抵抗 １４．１５：環状案内接触子 １７：案内接触子の端部 １８：摺動接触子の端部FIG. 1 is a wiring diagram when the operating position is at tap 1 (when the lowest voltage is applied), and FIG. 2 is a wiring diagram during switching from tap 3 to tap 4. Correspondence of symbols in the figure Wl, W2: Split winding M: 1 at the center of the winding, K2) K3, K4, K5, K6: Fixed contact 1, 2.3.4.5.6: At the center of the winding Tap 10: Movable contact device 11: Main contact 12: Resistance contact 1
3: Sliding contact 16: Protective resistor 14. 15: Annular guide contact 17: End of guide contact 18: End of sliding contact

Claims (2)

【特許請求の範囲】[Claims] （１）相の中心において各相ごとに巻線を分割し、各分
割巻線ごとにその中心に対して複数のタップを備え、環
状に固定されているタップ接触子を前記タップに接続し
、可動接触子が円の中心点のまわりに接触子から接触子
へ旋回可能である１個の切換開閉器を介して直列巻線を
接続しあるいは切ることのできるように構成された負荷
時タップ切換変圧器において、 前記切換開閉器は負荷時においても操作可能な１個の負
荷選択器であって、該選択器により両分割巻線（Ｗ１、
Ｗ２）のタップ（１、２、３；６、５、４）は固定接触
子（Ｋ１、Ｋ２、Ｋ３；Ｋ６、Ｋ５、Ｋ４）に接続され
ていて、可動接触子（１０）が環状案内接触子（１４、
１５）に連結され、該環状案内接触子が２分割されてい
て、その第１の部分（１４）は第１の分割巻線（Ｗ１）
のタップ接触子（Ｋ１、Ｋ２、Ｋ３）に、そして第２の
部分（１５）は第２の分割巻線（Ｗ２）のタップ接触子
（Ｋ４、Ｋ５、Ｋ６）にそれぞれ接続され、前記環状案
内接触子の第１の部分（１４）は第２の分割巻線（Ｗ２
）の中心（Ｍ）よりみて最後のタップ（４）に、そして
前記環状案内接触子の第２の部分（１５）は前記第１の
分割巻線（Ｗ１）の中心（Ｍ）よりみて最初のタップ（
３）に、それぞれ電気的に接続され、前記可動接触子（
１０）によって前記第１の分割巻線（Ｗ１）の最初のタ
ップ（３）のタップ接触子から前記第２の分割巻線（Ｗ
２）の最後のタップのタップ接触子（Ｋ４）に切り換え
るとき、同時に前記環状案内接触子の第１の部分（１４
）から第２の部分（１５）へ通電状態のまま切り換え可
能であることを特徴とする負荷時タップ切換変圧器。(1) The winding is divided for each phase at the center of the phase, each divided winding is provided with a plurality of taps at the center, and a tap contactor fixed in an annular shape is connected to the tap, On-load tap switching configured so that series windings can be connected or disconnected via a single switching switch in which the movable contact can be pivoted from contact to contact about the center point of the circle. In the transformer, the switching switch is a single load selector that can be operated even under load, and the selector switches between the two divided windings (W1,
The taps (1, 2, 3; 6, 5, 4) of W2) are connected to fixed contacts (K1, K2, K3; K6, K5, K4), and the movable contacts (10) are connected to annular guiding contacts. Child (14,
15), the annular guide contact is divided into two parts, the first part (14) of which is connected to the first divided winding (W1).
and the second part (15) is connected to the tap contacts (K4, K5, K6) of the second split winding (W2), respectively, and the second part (15) is connected to the tap contacts (K4, K5, K6) of the second split winding (W2), respectively. The first part (14) of the contact has a second split winding (W2
) to the last tap (4) as seen from the center (M) of the first split winding (W1), and the second part (15) of said annular guide contact to the first tap (4) as seen from the center (M) of said first segmented winding (W1). Tap(
3), each of which is electrically connected to the movable contactor (
10) from the tap contact of the first tap (3) of the first split winding (W1) to the second split winding (W
2), when switching to the tap contact (K4) of the last tap, at the same time the first part (14) of said annular guide contact
) to the second part (15) in an energized state. （２）特許請求の範囲第１項記載の負荷時タップ切換変
圧器において、 前記案内接触子の第１及び第２の部分（１４、１５）に
対して切り換え操作時に橋絡される両端部（１７）、及
び可動接触子装置（１０）で該接触子の連結される部分
（１３）の両端部が、それぞれ耐弧性の接点材料（１７
、１８）を備えている負荷時タップ切換変圧器。(2) In the on-load tap-changing transformer according to claim 1, both ends ( 17), and both ends of the connected portion (13) of the contact in the movable contact device (10) are made of arc-resistant contact material (17).
, 18).
JP61192989A 1985-08-21 1986-08-20 Load tap change transformer with intermediate tap Expired - Lifetime JPH0646615B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853529886 DE3529886A1 (en) 1985-08-21 1985-08-21 STAGE TRANSFORMER WITH CENTER TAP
DE3529886.3 1985-08-21

Publications (2)

Publication Number Publication Date
JPS6245106A true JPS6245106A (en) 1987-02-27
JPH0646615B2 JPH0646615B2 (en) 1994-06-15

Family

ID=6279003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61192989A Expired - Lifetime JPH0646615B2 (en) 1985-08-21 1986-08-20 Load tap change transformer with intermediate tap

Country Status (5)

Country Link
EP (1) EP0213461B1 (en)
JP (1) JPH0646615B2 (en)
CN (1) CN1010902B (en)
AT (1) ATE52875T1 (en)
DE (2) DE3529886A1 (en)

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EP0213461B1 (en) 1990-05-16
CN86104379A (en) 1987-03-04
DE3529886A1 (en) 1987-02-26
DE3671323D1 (en) 1990-06-21
ATE52875T1 (en) 1990-06-15
JPH0646615B2 (en) 1994-06-15
CN1010902B (en) 1990-12-19

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