JPS6356169A - Three-phase phase regulator - Google Patents

Abstract

PURPOSE:To prevent the local heating, vibration and noise of a series transformer, by a method wherein an exciting coil is divided into upper and lower coils while the exciting coils are connected in parallel to constitute a circulation circuit. CONSTITUTION:A phase compensating transformer 4 consists of a compensating coil 1, wound around a 3-phase core, a tap coil 2 and a tap switching unit 3 under 3-phase load. A series transformer 9 consists of series coils 5, 6, wound around the 3-phase core 12, and exciting coils 7, 8. The series coils 5, 6 are arranged in up-and-down and the point of connection thereof is connected to the adjusting coil 1 through a connecting lead 14. The exciting coils 7, 8 are arranged in up-and-down and are connected so as to constitute a parallel circuit while the point of connection thereof is connected to a tap coil 2 by the connecting lead 13 through the tap switching unit 3 under loading after a triangular connection is effected. According to this method, an ampereturn, generated in the series coils 5, 6 and different in the phase thereof, may be cancelled perfectly by the exciting coils 7, 8.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は三相位相調整器に係り、特に、調整変−圧器と
直列変圧器とから構成される三相位相調整器において、
−次側と二次側の電圧比を常に１に保ちながら位相調整
を容易に行うに好適な三相位相Ｗ１整器に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a three-phase phase regulator, and in particular, to a three-phase phase regulator composed of a regulating transformer and a series transformer.
- It relates to a three-phase phase W1 rectifier suitable for easily performing phase adjustment while always keeping the voltage ratio between the primary side and the secondary side at 1.

〔従来の技術〕[Conventional technology]

従来の調整変圧器と直列変圧器とから構成される三相位
相調整器では、特公昭５３−４５４９０号公報に記載の
ように、−次側と二次側の電圧比を常に１に保つために
第４図に示す様にＦＡ！１１変圧器４の調整巻線１を直
列変圧器の直列巻線の中央部（直列巻線５，６の接続点
）に接続リード１４で接続する結線となっている。一方
、直列巻線５，６を励磁する励磁巻線７は、通常の巻通
し構造で三角形結線され、接続リード１３で負荷時タッ
プ切換装置３に接続されている。In a conventional three-phase phase regulator composed of a regulating transformer and a series transformer, as described in Japanese Patent Publication No. 53-45490, the voltage ratio between the negative side and the secondary side is always kept at 1. As shown in Figure 4, FA! 11 The adjustment winding 1 of the transformer 4 is connected to the center of the series windings of the series transformer (the connection point of the series windings 5 and 6) by a connecting lead 14. On the other hand, the excitation winding 7 that excites the series windings 5 and 6 is triangularly connected in a normal winding structure, and is connected to the on-load tap switching device 3 through a connection lead 13.

ところが、この結線方式では、直列者ｇ５．６の位相の
異なる電流が流れることによる特殊モードのもれ磁束に
ついては考慮されていなかった。However, this wiring system does not take into account leakage flux in a special mode due to the flow of currents with different phases in the series members g5 and 6.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

つまり、第５図及び第６図で示す様に、直列巻線５，６
に流れる電流Ｉｆ、Ｉ２は位相が異なるため、励磁巻線
７に流れる電流工のみでは、直列巻線５．６で発生する
アンペアターンを完全に打消することが出来ず、特殊モ
ードのもれ磁束（工８′に対応）が直列変圧器内部に発
生し、構造物を介して循環するため、構造物の局部過熱
、負荷損失の増大等の問題があった。In other words, as shown in FIGS. 5 and 6, the series windings 5 and 6
Since the currents If and I2 flowing in the excitation winding 7 have different phases, the current flowing in the excitation winding 7 alone cannot completely cancel the ampere turn generated in the series winding 5.6, and the leakage magnetic flux in the special mode (corresponding to No. 8') occurs inside the series transformer and circulates through the structure, resulting in problems such as local overheating of the structure and increased load loss.

本発明の目的は、直列巻線５，６で発生する位相の異な
るアンペアターンを励磁巻線７で完全に打消することに
ある。An object of the present invention is to completely cancel out the phase-different ampere turns generated in the series windings 5 and 6 using the excitation winding 7.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的は、励磁巻線７を上、下に二分割し、二分割さ
れた上、下の励磁巻線を並列接続し、励磁巻線自身に環
流回路を構成させることにより達成される。The above object is achieved by dividing the excitation winding 7 into upper and lower halves, connecting the halves of the upper and lower excitation windings in parallel, and constructing a circulation circuit in the excitation winding itself.

〔作用〕[Effect]

従来技術において、直列巻線５，６で発生する位相の異
なるアンペアターンを励磁巻線７で打消すことの出来な
い分は、調整者１ｖ１１へ流れる電流工３に対応する分
である。In the prior art, the amount of ampere turns generated in the series windings 5 and 6 with different phases that cannot be canceled by the excitation winding 7 is the amount corresponding to the current flow 3 flowing to the adjuster 1v11.

よって、Ｉａに対応する電流■８′　を励磁巻線内で、
直列巻線の上部側５と、下部側６とに対応出来る様に流
してやれば、直列巻線で発生するアンペアターンを励磁
巻線で完全に打消すことが出来る。Therefore, the current ■8' corresponding to Ia is generated in the excitation winding,
If the current is made to correspond to the upper side 5 and the lower side 6 of the series winding, the ampere turns generated in the series winding can be completely canceled out by the excitation winding.

そのため、第２図に示す様に、励磁巻線を上、不二並構
成とする。それによって調整巻線に流れる電流Ｉｓに対
応する電流Ｉｓ’　が励磁巻ａ７，８の間を環流するこ
とが出来るので、調整巻線で発生する特殊モードのもれ
磁束を打消すことができる。Therefore, as shown in FIG. 2, the excitation winding is of a top and non-uniform configuration. As a result, the current Is' corresponding to the current Is flowing through the adjustment winding can circulate between the excitation windings a7 and a8, thereby canceling out the special mode leakage flux generated in the adjustment winding.

〔実施例〕〔Example〕

以下、本発明の実施例を第１図ないし第３図により説明
する。ａｍ変圧器４は二相鉄心に巻装された調整巻線１
とタップ巻線２、及び三相負荷時タップ切換装置３から
構成される。また、直列変圧器９は二相鉄心１２に巻装
された直列巻線５及び６と、励磁巻線７及び８とから構
成される。Embodiments of the present invention will be described below with reference to FIGS. 1 to 3. The am transformer 4 has an adjustment winding 1 wound around a two-phase core.
, a tap winding 2 , and a three-phase load tap switching device 3 . Further, the series transformer 9 is composed of series windings 5 and 6 wound around a two-phase iron core 12 and excitation windings 7 and 8.

直列巻線５．６は上、下に配置され、その接続点は接続
リード１４で調整巻線１に接続する結線となっている。The series windings 5.6 are arranged at the top and bottom, and their connection points are connected to the adjustment winding 1 through connection leads 14.

また、励磁巻線７．８は上、下に配置され、並列回路を
構成する様に結線される。その接続点は三角形結線を行
なったあと、接続リード１３により負荷時タップ切換装
！！！３を介してタップ巻線２へ接続される。Further, the excitation windings 7.8 are arranged at the top and bottom, and are connected to form a parallel circuit. After making a triangular connection at the connection point, use the connection lead 13 to switch taps under load! ! ! 3 to the tap winding 2.

本実施例によれば、第３図に示す様な位相の異なる電流
エエ、Ｉ２が直列巻ｇ５，６に流れた場合。According to this embodiment, when currents I2 having different phases as shown in FIG. 3 flow through the series windings g5 and g6.

調整巻線に流れる電流工δに対応する電流工δ′を励磁
巻線７，８の間に環流させることが出来るため、直列変
圧器９の内部に励磁巻線で打消されずに残っていたもれ
磁束分がなくなり従来発生していた構造物の局部過熱や
、負荷損失の増大、振動。Since the current flow δ′ corresponding to the current flow δ flowing through the adjustment winding can be circulated between the excitation windings 7 and 8, it remains inside the series transformer 9 without being canceled by the excitation winding. The lack of leakage magnetic flux causes local overheating of structures, increased load loss, and vibration, which previously occurred.

騒音の増大を防止する効果がある。This has the effect of preventing an increase in noise.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、直列変圧器内部の直列巻線によって発
生する位相の異なるアンペアターンを励磁巻線によって
完全に打消すことが出来るので、直列変圧器の局部過熱
、負荷損失増大振動、騒音の増大を防止することができ
る。According to the present invention, ampere turns with different phases generated by the series winding inside the series transformer can be completely canceled by the excitation winding, so that local overheating of the series transformer, load loss increase vibration, and noise can be reduced. The increase can be prevented.

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

第１図は本発明の位相調整器の一実施例を示す結線図、
第２図は第１図の直列変圧器の巻線配置図、第３図は第
２図の巻線電流ベクトル図、第４図は従来の位相調整器
を示す結線図、第５図は第４図の直列変圧器の巻線配置
図、第６図は第５図の巻線電流ベクトル図である。 ｌ・・・調整巻線。FIG. 1 is a wiring diagram showing an embodiment of the phase adjuster of the present invention,
Fig. 2 is a winding arrangement diagram of the series transformer shown in Fig. 1, Fig. 3 is a winding current vector diagram of Fig. 2, Fig. 4 is a wiring diagram showing a conventional phase adjuster, and Fig. 5 is a diagram showing the winding current vector diagram of the series transformer shown in Fig. 1. FIG. 4 is a winding arrangement diagram of the series transformer, and FIG. 6 is a winding current vector diagram of FIG. 5. l...Adjustment winding.

Claims (1)

【特許請求の範囲】 １、第一の三相鉄心に巻装された調整巻線およびタップ
巻線を備えた調整変圧器部分と、第二の三相鉄心に巻装
され、前記調整巻線の線路端に二分割された巻線中央部
が接続される二分割構造の直列巻線および前記タップ巻
線に接続される励磁巻線を備えた直列変圧器部分とで構
成される三相位相調整器において、 前記直列変圧器部分の前記励磁巻線を前記直列巻線に対
応するように二分割構造とし、二分割された前記励磁巻
線を並列接続し、前記励磁巻線自身に環流回路を備える
様にした前記直列変圧器部分と前記調整変圧器部分とで
構成したことを特徴とする三相位相調整器。[Scope of Claims] 1. A regulating transformer portion having an regulating winding and a tap winding wound around a first three-phase core; A three-phase phase system consisting of a series winding with a two-part structure in which the central part of the two-part winding is connected to the line end of the line, and a series transformer part with an excitation winding connected to the tap winding. In the regulator, the excitation winding of the series transformer portion has a two-divided structure corresponding to the series winding, the two divided excitation windings are connected in parallel, and the excitation winding itself has a circulation circuit. A three-phase phase regulator comprising the series transformer section and the adjustment transformer section.