JPS5913314A - Three-phase shunt reactor device of variable capacitance type - Google Patents

Abstract

PURPOSE:To realize a miniaturization of the titled device, by a method wherein three shunt reactors of variable capacitance type are arranged in parallel, each reactor comprising an intermediate core with a gap disposed between a main winding and a secondary winding, and the main windings are connected to three-phase lines respectively. CONSTITUTION:If switches are opened, main flux is generated in distribution in main cores 1A-1C and intermediate cores 6A-6C. In three-phase lines, vector sum of main flux distributed in the main cores 1A-1C and intermediate cores 6A-6C becomes zero. Both ends of the main cores 1A-1C are magnetically connected by a yoke core 10, thereby each main core and intermediate core have partial flux circulating therein so as to constitute prescribed main flux and vector sum of the partial flux becomes zero. If the switches are closed and secondary windings are shortcircuited, flux is produced in intermediate cores. Since the intermediate cores are connected by a yoke core 11, flux in each intermediate core is circulated and vector sum thereof is zero. Irrespective of whether the switches are opened or closed, flux produced in each core is circulated even if the core is not magnetically shortcircuited by a yoke core 8. Since the yoke core 8 needs not be used, the device is produced in light weight.

Description

【発明の詳細な説明】 この発明は三相用可変容量型分路リアクトル装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a three-phase variable capacity shunt reactor device.

可変容量型分路リアクトルにおいて、ギャップを有する
主鉄心に、電力線路に接続される主巻線と、両端が選択
的に短絡開放される２次巻線とを巻装し、又前記主巻線
と２次巻線との間にギャップを有する中間鉄心を設けた
構成は別過提案されているところである０第１図はその
構成を示し、１Ｆｉギヤツプ２を存する主鉄心で、これ
に主巻締３及び２次巻＠４を巻装し、又この２次巻＠４
０両端に開閉器５を接続する。６は主巻線５と２次巻＠
４との間に配置された中間鉄心で、ギャップ７を有し、
８Ｆｉヨーク鉄心で主鉄心１．中間鉄心６０両端を磁気
的に短絡すゐ。In a variable capacity shunt reactor, a main winding connected to a power line and a secondary winding whose ends are selectively shorted and opened are wound around a main iron core having a gap, and the main winding A configuration in which an intermediate core is provided with a gap between the main winding and the secondary winding has been proposed separately. Figure 1 shows this configuration. Wrap the tightening 3 and secondary volume @ 4, and also this secondary volume @ 4
0. Connect the switch 5 to both ends. 6 is the main winding 5 and the secondary winding @
4, having a gap 7,
Main iron core 1. with 8Fi yoke iron core. Both ends of the intermediate core 60 are magnetically shorted.

以上の構成において開閉器５を開放した場合は主巻線３
によって発生する磁束φは主鉄心１及び中間鉄心６に分
流し、仁れが合流して璽−り鉄心８を経て還流し、これ
によって主鉄心１のギャップ２による磁気抵抗と中間鉄
心６のギャップ７による磁気抵抗が並列に存在する磁気
抵抗に相当する磁化アンペアターンを与える電流が主巻
＠５Ｊ／Ｃ流れる。又開閉器５を閉成した場合は前記主
磁束は主鉄心１を通らず、すべて中間鉄心６を通るよう
にカリ、このギャップ７による磁気抵抗に相当する磁化
アンペアターンを与える電流が主巻１３に流れる。し九
がって前記主鉄心１による並列磁気抵抗が除かれる九め
主磁束すの磁路の磁気抵抗が増し、開閉器５の開路によ
抄主ＩＭ３に流れる電流との積で表わされるリアクトル
存置が増加するしとＫなる。In the above configuration, when the switch 5 is opened, the main winding 3
The magnetic flux φ generated by A current flows through the main winding @5J/C, giving a magnetizing ampere-turn corresponding to the magnetoresistance with a magnetoresistance of 7 in parallel. When the switch 5 is closed, the main magnetic flux does not pass through the main core 1, but entirely through the intermediate core 6, and the current that gives the magnetization ampere turns corresponding to the magnetic resistance due to this gap 7 flows through the main winding 13. flows to As a result, the parallel magnetic resistance due to the main iron core 1 is removed, and the magnetic resistance of the magnetic path of the main magnetic flux increases, resulting in a reactor represented by the product of the current flowing through the main IM 3 when the switch 5 is opened. As the number increases, it becomes K.

ところでこのようカ構成を三相線路に使用すると自・は
、上記構成の分路リアクトルを３台用意しこれを並設す
ればよいのであるが、主巻４１３の外側に目−り鉄心８
が空出されるので、３台並置した場合にはその全体の構
成が大型化し、又スペースも広くなるといった欠点があ
る。By the way, if such a power configuration is used for a three-phase line, all that is required is to prepare three shunt reactors with the above configuration and install them in parallel.
Since these devices are empty, if three devices are arranged side by side, the overall structure becomes large and the space is also large.

このｉ明は可変容量型の三相用分路リアクトル、１− 装置の白州化を図ることを目的とする。This item is a variable capacity type three-phase shunt reactor, 1- The purpose is to standardize the equipment.

この発明の１！施例を第２図によって説明する。Part 1 of this invention! An example will be explained with reference to FIG.

Ａ　ｗ　ＣＦｉ第１図の構成と原理的には同じの分路リ
アクトルを示し、それぞれ主鉄心１Ａ〜１Ｃ，中間鉄心
６Ａ〜６Ｃ９主＃ｆ線３Ａ〜３Ｃ及び２次巻線４Ａ〜４
Ｃを備え、主鉄心１１〜１Ｃのそれぞれに主巻線３１〜
３Ｃ１２次を線４Ａ〜４Ｃのそれぞれを巻装する。A w CFi shows a shunt reactor that is basically the same in configuration as that shown in FIG.
C, and each of the main cores 11 to 1C has main windings 31 to 1C.
Wrap each of the wires 4A to 4C with the 3C12 wire.

各主巻＠３Ａ〜３Ｃと２次巻線４Ａ〜４Ｃとの間にそれ
ぞれ中間鉄心６Ａ〜６Ｃのそれぞれが配置されるＯ これらの構成は第１図の構成と大差はないが、第１図の
構成で祉ヨーク鉄心８を主巻線゛３の外周側に延長して
配置するのに対し、第２図の１！鉤例では各主鉄心１Ａ
〜１Ｃの上端間及下端間を冒−り鉄心１０で連結し、及
び中間鉄心８Ａ〜ＢｃＯ上端間及び下端間を同じように
璽−り鉄心１１　で連結する。Intermediate cores 6A to 6C are arranged between each main winding 3A to 3C and each secondary winding 4A to 4C. These configurations are not much different from the configuration shown in FIG. In the configuration shown in Figure 2, the safety yoke core 8 is extended to the outer periphery of the main winding 3, whereas in the configuration 1! In the hook example, each main core is 1A
The upper ends and lower ends of the intermediate cores 8A to 1C are connected by a twisted iron core 10, and the upper ends and lower ends of the intermediate iron cores 8A to BcO are similarly connected by a twisted iron core 11.

このように構成した場合、開閉器（これは各２次巻線の
両端に接続されである。ただし各２次巻線につきひとつ
の開閉器を共用するようにしてもよい、）を開放した状
態では、前述のように各主鉄心１Ａ〜１Ｃ及び中間鉄心
６Ａ〜６０に主磁束が分流して発生するが、三相線路で
はこの主鉄心１Ａ〜１Ｃが中間鉄心６Ａ〜６Ｃを分流す
る主磁束のベクトル和はそれぞれ零でｂるかも図のよう
に璽−り鉄心１０で主鉄心１Ａ〜１ＣＯＰｉｉ端を磁気
的に結合しておけば、各主鉄心及び中間鉄心には所定の
主磁束に発成されるような分流磁束が発生して還流する
とともｋそれらのベクトル和は零となる。When configured in this way, the switch (which is connected to both ends of each secondary winding; however, one switch may be shared for each secondary winding) is in an open state. As mentioned above, the main magnetic flux is generated by branching to each main core 1A to 1C and intermediate cores 6A to 60, but in a three-phase line, the main magnetic flux is generated by main cores 1A to 1C branching to intermediate cores 6A to 6C. The vector sum of each is zero and b.If the ends of the main cores 1A to 1COPii are magnetically coupled with the coiled core 10 as shown in the figure, each main core and intermediate core will have a predetermined main magnetic flux. When a shunt magnetic flux is generated and circulated, the vector sum of these fluxes becomes zero.

同じように開閉器を閉成して各２次巻ｌ５ｔ−短絡した
場合は各中間鉄心に磁束が発生するが、冒−り鉄心１１
で連結されていゐので、各中間鉄心の磁束は還流し、か
つそのペク）／ｌ・和は零である。すなわち開閉器が開
放、閉成の如何を問わず、各鉄心に発生する磁束は８１
図に示すような曹−り鉄心８で各鉄心を磁気的に短絡し
なくとも、還流するよう（（なる、セして冒−り鉄心８
を使用しｆｋいですむことによシ、主４Ｉ＠の外側に延
長する鉄心がなくそれだけ小型に製作でき、かつ軽量化
も可能となシ、設置スペースの縮少も図ることができる
０ 以上の実施例は主巻線を２次巻線の外側に配置＠した構
成としているが、これとは逆に第４図に示すように２次
巻線４Ａ〜４Ｃを主巻＠３Ａ〜３Ｃの外側に配置するよ
うＫしてもよい。Similarly, when the switch is closed and each secondary winding 15t is short-circuited, magnetic flux is generated in each intermediate core, but
Therefore, the magnetic flux of each intermediate core circulates, and its sum is zero. In other words, regardless of whether the switch is open or closed, the magnetic flux generated in each core is 81
As shown in the figure, even if each core is not magnetically short-circuited with the core 8, reflux can be achieved.
By using fk, there is no iron core extending outside the main 4I@, so it can be made smaller and lighter, and the installation space can be reduced. The embodiment has a structure in which the main winding is placed outside the secondary winding, but on the contrary, as shown in FIG. K may be placed outside.

以上詳述したように仁の発明は可変存置型分路リアクト
ルの５台をもって三相用とする場合Ｋ。As detailed above, Jin's invention is suitable for three-phase use with five variable placement type shunt reactors.

そＯ構成の小型化、軽量化が可能となり、かつ設備スペ
ースの縮費化が期待できるといった効果を奏する。It is possible to make the O configuration smaller and lighter, and it is possible to expect a reduction in equipment space costs.

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

第１図はこの発明の原理的な構成を示す断面図、第２図
はこの発明の実施例を示す平面図、ｔＳＳ図は同断面図
、第４図はこの発明の別の実施例を示す平面図、第５図
は同断面図である。 １Ａ〜１ｃ　、、、、主鉄心、２　、、、、ギャップ、
５Ａ〜５Ｃ００８，主巻線、　４Ａ〜４Ｃ、、、、２次
巻線、５　、、、、開閉器、６Ａ〜６ｃ　、、、、中間
鉄心１７・・・・ギャップ−１０、１１、、、、！−り
鉄心 特許出願人　関西電力株式会社 他１名 代理人　中沢謹之助FIG. 1 is a cross-sectional view showing the basic configuration of this invention, FIG. 2 is a plan view showing an embodiment of this invention, tSS diagram is a cross-sectional view of the same, and FIG. 4 is another embodiment of this invention. The plan view and FIG. 5 are the same sectional views. 1A to 1c, Main core, 2, Gap,
5A to 5C008, Main winding, 4A to 4C, Secondary winding, 5, Switch, 6A to 6c, Intermediate core 17... Gap -10, 11,... ,! - Iron core patent applicant Kansai Electric Power Co., Ltd. and one other agent Kinnosuke Nakazawa

Claims (1)

【特許請求の範囲】 ギャップを有する主鉄心に、主巻線と、選択的に短絡開
放される２次巻線とを巻装するとともＫ。 前記主巻線と２次巻線との間にギャップを有する中間鉄
心を配置してなる可変容量型の分路リアクトルの３台を
並置し、前記分路リアクトルの主巻線を三相線路のそれ
ぞれに接続せしめるとともに、前記各主鉄心の上端及び
下端をヨーク鉄心で連結し、及び前記各中間鉄心・の上
端及び下端をヨーク鉄心で連結してなる三相用可変容ｌ
型分路リアクトル装置[Claims] A main winding and a secondary winding that is selectively short-circuited and opened are wound around a main core having a gap. Three variable capacitance type shunt reactors each having an intermediate core with a gap between the main winding and the secondary winding are arranged side by side, and the main winding of the shunt reactor is connected to the three-phase line. a three-phase variable capacity l formed by connecting the upper and lower ends of each of the main iron cores with a yoke iron core, and connecting the upper and lower ends of each of the intermediate iron cores with a yoke iron core;
type shunt reactor device