JPH08186037A - Tap winding of on-load tap changing transformer - Google Patents

Abstract

PURPOSE: To provide the tap winding, which has a high insulation reliability, facilitates a work and has little processing manhour, of an on-load tap changing transformer. CONSTITUTION: An upper tap wire 21 of a tap winding is formed in such a way that its drawing-out part, from which a winding conductor is batch-drawn, is fixed by an upper tap press 22 in the axial direction of the winding and the diameter direction of the winding, a lower tap wire 23 of the tap winding is formed in such a way that its drawing-out part, from which a winding conductor is batch-drawn, is fixed by a lower tap press 24 in the axial direction of the winding and the diameter direction of the winding and is drawn out and the tap winding is constituted by connecting the tap wires 21 and 23 with each other. The connection method of coils with the tap winding is the same method as a conventional one, the coils are connected with the tap winding and the tap winding is formed. The tap winding is wired from its connection points with the coils to a tap selector through a tap lead wire 20.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、変圧器のタップ巻線に
係るものであり、詳しくは負荷時タップ切換変圧器のタ
ップ巻線の口出線の引出構造と結線構造に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tap winding of a transformer, and more particularly to a lead-out structure and a connecting structure of a tap winding of a tap switching transformer under load.

【０００２】[0002]

【従来の技術】負荷時タップ切換変圧器では、図３
（ａ）に示すように、鉄心１１に低圧巻線１２と高圧側
の主巻線１３とタップ巻線１４とを同心的に配置し、主
巻線１３を線路側に、タップ巻線１４を図３（ｂ）に示
すように中性点側にして直列に接続して高圧巻線１５を
構成している。このときタップ巻線１４は、タップ数だ
けの絶縁された絶縁導体を並列に巻き上げ、リード線で
全体を直列に接続して、どのタップの位置でも高圧、低
圧両巻線のアンペアターン分布をほぼ一定とする、いわ
ゆる並列巻円筒タップコイルとしている。2. Description of the Related Art A load tap change transformer is shown in FIG.
As shown in (a), the low-voltage winding 12, the high-voltage side main winding 13 and the tap winding 14 are concentrically arranged on the iron core 11, and the main winding 13 is arranged on the line side and the tap winding 14 is arranged. As shown in FIG. 3B, the high voltage winding 15 is formed by connecting in series on the neutral point side. At this time, in the tap winding 14, the insulated insulated conductors of the number of taps are wound in parallel, and the whole is connected in series by the lead wire, so that the ampere-turn distribution of both high-voltage and low-voltage windings can be obtained at any tap position. It is a so-called parallel-wound cylindrical tap coil that is constant.

【０００３】現在、主に中容量クラスの負荷時タップ切
換変圧器では、最外周に位置するタップ巻線１４の結線
は、図４の負荷時タップ切換変圧器のタップ巻線の構成
を示す巻線構成図に示すように、タップコイルの数（例
えば６本の場合について説明する）の絶縁導体〔電線
（１）、（２）、（３）、（４）、（５）、（６）〕を
横（巻線の軸）方向に並べて巻回（各絶縁導体の巻回数
が同一の場合を示す）し、口出線は、１の巻き終りをタ
ップ７、１の巻き始めと６の巻き終りを接続したタップ
６、６の巻き始めと（２）の巻き終りを接続したタップ
５、（２）の巻き始めと（５）の巻き終りを接続したタ
ップ４、（５）の巻き始めと３の巻き終りを接続したタ
ップ３、３の巻き始めと４の巻き終りを接続したタップ
２、４の巻き始めをタップ１として、計７本の口出リー
ド線がタップとして引出される。そして、この７本の口
出リード線が負荷時タップ切換装置のタップ選択器に接
続され、一次電圧の変動に合わせてタップ切換が行われ
る。なお、図４は各コイルの巻回数が同一ターンの場合
を示している。At present, mainly in the medium capacity class load tap change transformer, the connection of the tap winding 14 located at the outermost periphery is a winding showing the structure of the tap winding of the load tap change transformer shown in FIG. As shown in the line configuration diagram, an insulated conductor having the number of tap coils (for example, the case of 6 will be described) [electric wires (1), (2), (3), (4), (5), (6)] ] Are wound side by side (axis of winding) and wound (showing the case where the number of windings of each insulated conductor is the same), and the lead wire is The winding start of taps 6 and 6 with the end of winding connected, the tap 5 with the end of winding of (2) connected, the start of winding of (2) and the start of tap 4 with the ending of (5), and the start of winding (5) Start the winding of taps 3 and 3 that connect the winding ends of and 3, and start the winding of taps 2 and 4 that connect the winding ends of 4 As-up 1, a total of seven of the mouth out of the lead wire is pulled out as a tap. Then, the seven lead wires are connected to the tap selector of the tap switching device under load, and tap switching is performed according to the fluctuation of the primary voltage. Note that FIG. 4 shows a case where the number of turns of each coil is the same.

【０００４】図５は現在の巻線の引き出し方と結線方法
を示す結線構造図で、図５に示すように、タップ巻線１
４の口出線の引き出し方は、仮に下部を巻き始めとする
と、下部の口出線１８は巻線の巻き終わりの巻線導体を
１本づつ下部口出押さえ１９のＵ字形の溝から引き出し
ている。コイルの接続方法は図４と同じ方法で各コイル
を接続し、タップ巻線１４を形成している。上部の口出
線１６は巻線の巻き終りの巻線導体を一括して引き出
し、引き出し部分を上部口出押さえ１７で巻線の軸方向
と径方向を固定する。そして、接続点からタップリード
線２０により、タップ選択器まで配線される。FIG. 5 is a connection structure diagram showing a current winding method and connection method. As shown in FIG.
If the lower part of the lead wire 18 is to start winding, the lower lead wire 18 draws the winding conductors at the end of the winding one by one from the U-shaped groove of the lower lead retainer 19. ing. The coils are connected in the same manner as in FIG. 4, and the tap winding 14 is formed. The upper lead wire 16 collectively draws out the winding conductor at the end of the winding, and the drawn-out portion is fixed by the upper lead-out presser 17 in the axial direction and the radial direction of the winding. Then, the tap lead wire 20 is wired from the connection point to the tap selector.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、前述の
ように、下部の口出線は巻線の絶縁導体を１本づつ引き
出して結線するには、タップ巻線の口出線を押さえるた
めの口出押えの構造が下部の口出線は１本づつ引き出す
ためにＵ字形に切り欠く形となり、３相ともなると口出
押えの製作に多大の加工時間を必要とするという問題点
を有していた。However, as described above, in the case of the lead wire at the bottom, the lead wire for holding the lead wire of the tap winding is used in order to draw and connect the insulated conductors of the winding one by one. The structure of the presser foot has a problem in that the lower lead wire is cut out in a U shape in order to pull out one by one, and if it is three phases, it takes a lot of processing time to manufacture the mouth presser. It was

【０００６】また、下部の口出線を１本づつ引き出す場
合に、巻線の軸に対して垂直に引き出しているため、巻
線導体を１本づつ治具を使って曲げ、絶縁被覆の補強を
施すなど、作業が複雑であるという問題があった。Further, when the lower lead wires are drawn out one by one, since they are drawn out perpendicularly to the winding axis, the winding conductors are bent one by one using a jig to reinforce the insulation coating. There was a problem that the work was complicated, such as applying.

【０００７】本発明は、従来の技術の有するこのような
問題点に鑑みてなされたもので、絶縁の信頼性が高く、
作業が容易で加工工数の少ない負荷時タップ切換変圧器
のタップ巻線を提供することを目的とする。The present invention has been made in view of the above problems of the prior art, and has high insulation reliability,
An object of the present invention is to provide a tap winding for a tap switching transformer under load, which is easy to work and has a small number of processing steps.

【０００８】[0008]

【課題を解決するための手段】上述の目的を達成するた
めに、本発明における負荷時タップ切換変圧器のタップ
巻線は、タップ巻線の上部の口出線は巻線導体を一括し
て引き出し、その引き出し部分を上部口出押さえで巻線
軸方向および径方向に固定し、下部の口出線は巻線動態
を一括して引き出し、その引き出し部分を下部口出押さ
えで巻線軸方向および径方向に固定して引き出し、結線
する。In order to achieve the above-mentioned object, the tap winding of the load tap change transformer according to the present invention is such that the lead wire above the tap winding is made up of the winding conductors collectively. Draw out and fix the drawn out part in the winding axial direction and radial direction with the upper exit retainer, and draw out the winding dynamics collectively in the lower outlet wire, and then withdraw the drawn out part in the winding axial direction and radial direction with the lower exit retainer. Fix in the direction, pull out, and connect.

【０００９】[0009]

【作用】上述のように構成することにより、タップ巻線
の上下の構造が同じとなって、設計工数の低減、口出押
えの加工時間の短縮と材料のコストダウンができ、口出
線もまとめて引き出すため、巻線導体を１本づつ治具を
使って曲げて絶縁被覆の補強をすることがなくなり、加
工時間の節減が可能となる。By configuring as described above, the upper and lower structures of the tap winding are the same, which can reduce the design man-hours, the processing time of the presser foot and material cost, and the lead wire. Since the winding conductors are collectively pulled out, it is not necessary to bend the winding conductors one by one using a jig to reinforce the insulating coating, and it is possible to reduce the processing time.

【００１０】[0010]

【実施例】以下、本発明の実施例を図１〜２に基づいて
説明する。Embodiments of the present invention will be described below with reference to FIGS.

【００１１】図１は本発明の実施例を示す負荷時タップ
切換変圧器のタップ巻線の引き出し方と結線構造を示す
説明図で、図１に示すように下部の口出線も上部の口出
線と同様に一括して引き出す構造としたものである。タ
ップ巻線１４の口出線の引き出し方は、仮に下部を巻き
始めとすると、下部の口出線２３は巻線の巻き始めの巻
線導体を一括して引き出し、引き出し部分を下部口出押
さえ２４で固定する。上部の口出線２１は巻線の巻き終
りの巻線導体を一括して引き出し、引き出し部分を上部
口出押さえ２２で固定して引き出した上下の巻線導体を
結線している。コイルの接続方法は図４と同じ方法で各
コイルを接続し、タップ巻線を形成している。そして、
接続点からタップリード線２０によりタップ選択器まで
配線している。FIG. 1 is an explanatory view showing how to draw out a tap winding and a connection structure of a tap switching transformer under load showing an embodiment of the present invention. As shown in FIG. It has a structure that pulls out all at once like the outgoing line. If the lower part of the lead wire of the tap winding 14 is to start winding, the lower lead wire 23 collectively draws the winding conductor at the beginning of the winding and holds the drawn part at the lower part of the lead wire. Fix at 24. The upper lead wire 21 collectively draws the winding conductors at the end of the winding, fixes the drawn-out portion with an upper lead-out retainer 22, and connects the upper and lower winding conductors. The coils are connected in the same manner as in FIG. 4 to form the tap windings. And
The tap lead wire 20 is connected from the connection point to the tap selector.

【００１２】図２は本発明の負荷時タップ切換変圧器の
タップ巻線の口出押さえの素材の形状を示す要部正面図
である。図２において、上部口出押さえ２２と下部口出
押さえ２４の形状は、各コイルの巻回数が同一の場合、
上下の巻線導体の引出部分が丁度、重なり合うようにな
っている。そこで上部口出押さえ２２と下部口出押さえ
２４を製作するには、上下１組として素材（絶縁筒）か
ら切り出すことが出来るので、上下別々に切り出すより
も、素材の量が節約できる。FIG. 2 is a front view of the essential parts showing the shape of the material for holding the mouth of the tap winding of the tap change transformer under load of the present invention. In FIG. 2, the shapes of the upper outlet retainer 22 and the lower outlet retainer 24 are the same when the number of windings of each coil is the same.
The drawn parts of the upper and lower winding conductors are just overlapped. Therefore, in order to fabricate the upper and lower push-out retainers 22 and 24, the upper and lower push-out restraints 24 can be cut out from the material (insulating cylinder) as one set, so that the amount of the raw material can be saved as compared with cutting up and down separately.

【００１３】[0013]

【発明の効果】本発明は、上述のように構成されている
ので、次に記載する効果を奏する。Since the present invention is configured as described above, the following effects can be obtained.

【００１４】（１）タップ巻線の上下の構造が同じであ
るため、設計工数が低減できる。(1) Since the upper and lower structures of the tap winding are the same, the number of design steps can be reduced.

【００１５】（２）口出押さえの細かい加工が無くなる
ため、口出押さえの加工時間が大幅に短縮できる。(2) Since the fine processing of the mouthpiece is eliminated, the machining time of the mouthpiece can be greatly shortened.

【００１６】（３）上部と下部の口出押えは同じ素材を
使用でき、加工時間の短縮、材料のコストダウンができ
る。(3) The same material can be used for the upper and lower presser foots, and the processing time can be shortened and the material cost can be reduced.

【００１７】（４）下部の口出線は１本づつ引き出す場
合には巻線の軸に対して垂直に引き出しているため、巻
線導体を１本づつ治具を使って曲げ、絶縁被覆の補強を
施していたが、本発明の負荷時タップ切換変圧器のタッ
プ巻線では、その作業がなくなるので、その分だけ、巻
線加工時間の節減になる。(4) When the lead wires at the bottom are drawn out one by one, since they are drawn perpendicularly to the axis of the winding wire, the winding conductors are bent one by one using a jig and the insulation coating Although it was reinforced, the tap winding of the tap change transformer under load of the present invention does not require the work, so the winding processing time is reduced accordingly.

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

【図１】本発明の実施例を示す負荷時タップ切換変圧器
タップ巻線の引き出し方と結線構造を示す説明図であ
る。FIG. 1 is an explanatory diagram showing a method of drawing out a tap winding and a connection structure of a tap switching transformer under load showing an embodiment of the present invention.

【図２】本発明の負荷時タップ切換変圧器タップ巻線の
口出押えの素材の形状を示す要部正面図。FIG. 2 is a front view of the essential parts showing the shape of the material of the lead retainer of the tap winding transformer under load of the present invention.

【図３】負荷時タップ切換変圧器のタップ巻線の構成を
示す巻線構成図である。FIG. 3 is a winding configuration diagram showing a configuration of a tap winding of the tap switching transformer under load.

【図４】負荷時タップ切換変圧器のタップ巻線構成図。FIG. 4 is a configuration diagram of a tap winding of a tap switching transformer under load.

【図５】従来の負荷時タップ切換変圧器タップ巻線の引
き出し方と結線構造を示す説明図である。FIG. 5 is an explanatory view showing how to draw out the tap winding of the conventional tap switching transformer during load and the connection structure.

【符号の説明】[Explanation of symbols]

（１）、（２）、（３）、（４）、（５）、（６）…タ
ップ巻線の絶縁導体 １、２、３、４、５、６、７…タップ ２０…タップリード線 ２１…上部の口出線 ２２…上部口出押さえ ２３…下部の口出線 ２４…下部口出押さえ ２５…接続点(1), (2), (3), (4), (5), (6) ... Insulated conductor of tap winding 1, 2, 3, 4, 5, 6, 7 ... Tap 20 ... Tap lead wire 21 ... Upper lead wire 22 ... Upper lead retainer 23 ... Lower lead wire 24 ... Lower lead retainer 25 ... Connection point

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 鉄心に低圧巻線および高圧主巻線を巻装
し、その外周に複数の巻線導体を並べて巻回した並列円
筒巻タップコイルを順次に直列に接続してその接続点を
タップとして引き出したタップ巻線を巻装し、このタッ
プ巻線を前記高圧主巻線と直列に接続してなる負荷時タ
ップ切換変圧器において、前記タップ巻線の上部の口出
線は巻線導体を一括して引き出した引き出し部分を上部
口出押さえで固定し、下部の口出線は巻線導体を一括し
て引き出した引き出し部分を下部口出押さえで固定して
引き出して結線したことを特徴とする負荷時タップ切換
変圧器のタップ巻線。1. A low-voltage winding and a high-voltage main winding are wound around an iron core, and parallel cylindrical tap coils in which a plurality of winding conductors are wound side by side on the outer periphery of the winding are sequentially connected in series and the connection points are connected. In a load tap change transformer in which a tap winding drawn out as a tap is wound, and this tap winding is connected in series with the high-voltage main winding, the lead wire above the tap winding is the winding. The lead-out portion where the conductors are collectively pulled out is fixed with the upper lead-out retainer, and the lower lead-out wire is the lead-out portion where the winding conductors are pulled out together with the lower lead-out retainer fixed and pulled out. Characteristic tap winding of tap change transformer under load.