JPH081858B2 - Tap voltage regulator - Google Patents
Tap voltage regulatorInfo
- Publication number
- JPH081858B2 JPH081858B2 JP63145798A JP14579888A JPH081858B2 JP H081858 B2 JPH081858 B2 JP H081858B2 JP 63145798 A JP63145798 A JP 63145798A JP 14579888 A JP14579888 A JP 14579888A JP H081858 B2 JPH081858 B2 JP H081858B2
- Authority
- JP
- Japan
- Prior art keywords
- tap
- winding
- voltage
- taps
- auxiliary
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は，変圧器の電圧を調整するタップ電圧調整
器に関し，特にコストダウンを実現するとともに，主変
圧器の一次巻線と二次巻線との巻回数を変えることな
く，容易にかつきめの細かい電圧調整を可能にしたタッ
プ電圧調整器に関するものである。Description: TECHNICAL FIELD The present invention relates to a tap voltage regulator that regulates a voltage of a transformer, and particularly realizes a cost reduction, and a primary winding and a secondary winding of a main transformer. The present invention relates to a tap voltage regulator that enables easy and fine voltage adjustment without changing the number of turns with a wire.
［従来の技術］ 第２図は，従来のタップ電圧調整器の結線を示す図で
ある。図において，主変圧器１は，主変圧器１の一次巻
線２および二次巻線４を有している。一次巻線２の両端
には巻線端子3a,3bがそれぞれ接続されている。一次巻
線４の一端には巻線端子5aが接続されている。二次巻線
４の他端側に設けられているタップ6a,6b,6c,6dは第２
のタップ切り換え器7bと接続され，タップ6d,6bは第１
のタップ切り換え器7aと接続されている。補助単巻変圧
器８は、主変圧器１内の一次巻線および二次巻線とは別
の鉄心に巻回されており、補助単巻変圧器８の巻線9aは
第１のタップ切り換え器7aと，巻線9bは第２のタップ切
り換え器7bとそれぞれ接続されている。二次巻線４の巻
線端子5bは補助単巻変圧器８の巻線と接続されている。
なお，補助単巻変圧器８の巻線9a,9bのそれぞれの巻回
数はn1とn2である。[Prior Art] FIG. 2 is a diagram showing a connection of a conventional tap voltage regulator. In the figure, the main transformer 1 has a primary winding 2 and a secondary winding 4 of the main transformer 1. Winding terminals 3a and 3b are connected to both ends of the primary winding 2, respectively. A winding terminal 5a is connected to one end of the primary winding 4. The taps 6a, 6b, 6c, 6d provided on the other end side of the secondary winding 4 are the second
Connected to the tap changer 7b, and the taps 6d and 6b are the first
It is connected to the tap changer 7a. The auxiliary autotransformer 8 is wound around an iron core different from the primary winding and the secondary winding in the main transformer 1, and the winding 9a of the auxiliary autotransformer 8 has the first tap switching. The device 7a and the winding 9b are respectively connected to the second tap changer 7b. The winding terminal 5b of the secondary winding 4 is connected to the winding of the auxiliary autotransformer 8.
The number of turns of each of the windings 9a and 9b of the auxiliary autotransformer 8 is n 1 and n 2 .
従来のタップ電圧調整器は上記のように構成され，補
助単巻変圧器８の巻線の巻回数は同数，すなわち巻回数
比n1：n2＝1:1である。これにより，主変圧器１の二次
巻線４の巻線端子5aと5b間の電圧値，すなわちタップ電
圧間は，第１および第２のタップ切り換え器7a,7bで選
択したタップ，例えばタップ6a,6bを選択すると，この
タップ間の電圧Ｅ（以下同様）の1/2の値とタップ6bと
巻線端子5a間の電圧値の和となる。このようにして，同
一タップを選択した際はそのタップ電圧が得られるばか
りでなく，異なるタップを選択した際にはそれぞれのタ
ップ電圧を平均した電圧値が得られるようになってい
る。また，二次巻線４を流れる電流をＩとすると（以下
同様），補助単巻変圧器８の巻線9a,9bにはそれぞれ1/2
・Ｉなる電流が流れることになる。すなわち，第１およ
び第２のタップ切り換え器7a,7bの最大許容電流は1/2・
Ｉ以上となる。The conventional tap voltage regulator is configured as described above, and the number of turns of the winding of the auxiliary autotransformer 8 is the same, that is, the turn ratio n 1 : n 2 = 1: 1. Thereby, the voltage value between the winding terminals 5a and 5b of the secondary winding 4 of the main transformer 1, that is, the tap voltage, is the tap selected by the first and second tap changers 7a and 7b, for example, the tap. When 6a and 6b are selected, the value is 1/2 of the voltage E between the taps (the same applies below) and the voltage value between the tap 6b and the winding terminal 5a. Thus, not only the tap voltage is obtained when the same tap is selected, but also the voltage value obtained by averaging the tap voltages is obtained when different taps are selected. If the current flowing through the secondary winding 4 is I (the same applies below), the windings 9a and 9b of the auxiliary autotransformer 8 will each have a 1/2
・ A current I will flow. That is, the maximum allowable current of the first and second tap changers 7a, 7b is 1/2.
I or more.
［発明が解決しようとする課題］ 上記のような従来のタップ電圧調整器では，補助単巻
変圧器８の巻線9a,9bの巻回数n1とn2が同数であったた
め，例えば異なるタップ6a,6bを選択してそれぞれのタ
ップ電圧値を平均した値が所望の電圧値でない場合に
は，主変圧器１の一次巻線２と二次巻線４の巻回数を変
更して，要求されるタップ電圧が得られるようにしなけ
ればならないという問題点があった。[Problems to be Solved by the Invention] In the conventional tap voltage regulator as described above, since the number of turns n 1 and n 2 of the windings 9a and 9b of the auxiliary autotransformer 8 are the same, for example, different taps are used. If the average value of tap voltage values of 6a and 6b is not the desired voltage value, the number of turns of the primary winding 2 and the secondary winding 4 of the main transformer 1 is changed to obtain the required value. There is a problem that it is necessary to obtain the tap voltage that is set.
この発明は，かかる問題点を解決するためになされた
もので，コストダウンを実現するとともに、主変圧器の
巻回数で得られるタップ間電圧に対して補助単巻変圧器
により任意のタップ電圧値を得ることを目的とする。The present invention has been made to solve such a problem, and realizes cost reduction, and an arbitrary tap voltage value by an auxiliary autotransformer with respect to a voltage between taps obtained by the number of turns of the main transformer. Aim to get.
［課題を解決するための手段］ この発明に係るタップ電圧調整器は，複数のタップが
設けられた二次巻線を有する主変圧器と、主変圧器内の
一次巻線および二次巻線とは別の鉄心に巻回されかつ巻
回数比の異なる補助単巻変圧器と、複数のタップと補助
単巻変圧器の両端子とを接続する第１および第２のタッ
プ切り換え器とを備え、補助単巻変圧器の巻回数比に応
じたタップ電圧が得られるように構成したものである。[Means for Solving the Problems] A tap voltage regulator according to the present invention includes a main transformer having a secondary winding provided with a plurality of taps, and a primary winding and a secondary winding in the main transformer. An auxiliary autotransformer wound on a different iron core and having a different winding ratio, and first and second tap changers connecting a plurality of taps and both terminals of the auxiliary autotransformer. The tap voltage is obtained according to the winding number ratio of the auxiliary autotransformer.
［作用］ この発明においては，補助単巻変圧器の巻回数比をた
とえばn1：n2＝2:1としたことにより，タップ間の電圧
Ｅの2/3の電圧2/3Eを調整し，タップ電圧を2/3Eずつ変
えることが可能となる。[Operation] In the present invention, the voltage 2 / 3E, which is 2/3 of the voltage E between the taps, is adjusted by setting the turns ratio of the auxiliary autotransformer to n 1 : n 2 = 2: 1, for example. ， Tap voltage can be changed by 2 / 3E.
［実施例］ 第１図はこの発明の一実施例によるタップ電圧調整器
の結線を示す図である。図において，第２図と同一符号
のものは従来のものと同様である。補助単巻変圧器8Aは
巻回数n1の巻線9Aと巻回数n2の巻線9Bを有しており，
n1：n2＝2:1である。[Embodiment] FIG. 1 is a diagram showing a connection of a tap voltage regulator according to an embodiment of the present invention. In the figure, the same symbols as those in FIG. 2 are the same as the conventional ones. Auxiliary autotransformer 8A has a winding 9A and the winding 9B of the number of turns n 2 of windings n 1,
n 1 : n 2 = 2: 1.
上記のように構成されたタップ電圧調整器において，
第１および第２のタップ切り換え器7a,7bが異なるタッ
プ，例えばタップ6a,6bを選択していると，補助単巻変
圧器8Aには１タップ間の電圧Ｅが誘起される。このと
き，巻回数比n1：n2＝2:1であるから，タップ電圧は，
タップ間の電圧の1/3ずつまたは2/3ずつの調整が可能と
なる。この発明の実施例では，タップ間電圧の2/3ずつ
の電圧調整となるように第１および第２のタップ切り換
え器7a,7bにタップ6a〜6dを接続している。さらに，こ
の時第１および第２のタップ切り換え器7a,7bには，そ
れぞれ1/3・Ｉと2/3・Ｉなる電流が流れるため，第２の
タップ切り換え器7bは従来と同型のものを使用し，第１
のタップ切り換え器7aは従来より許容電流の小さなタッ
プ切り換え器を用いればよい。In the tap voltage regulator configured as described above,
When the first and second tap changers 7a and 7b select different taps, for example, taps 6a and 6b, a voltage E across one tap is induced in the auxiliary autotransformer 8A. At this time, since the winding number ratio n 1 : n 2 = 2: 1, the tap voltage is
It is possible to adjust the voltage between taps by 1/3 or 2/3. In the embodiment of the present invention, the taps 6a to 6d are connected to the first and second tap changers 7a and 7b so as to adjust the voltage by 2/3 of the voltage between the taps. Furthermore, at this time, currents of 1/3 · I and 2/3 · I flow through the first and second tap changers 7a and 7b, respectively, so that the second tap changer 7b is of the same type as the conventional one. Use the first
As the tap changer 7a, a tap changer having a smaller allowable current than the conventional one may be used.
このように、主変圧器１のタップ6a〜6dと補助単巻変
圧器８との間に２台のタップ切り換え器7aおよび7bを並
列接続したので、補助単巻変圧器８の巻数比n1：n2に対
して、各タップ切り換え器7aおよび7bの通過電流の分流
比を（1/n1）：（1/n2）とすることができる。したがっ
て、第１および第２のタップ切り換え器7aおよび7bとし
て、上述のように許容通過電流の小さいものを適用する
ことができる。As described above, since the two tap changers 7a and 7b are connected in parallel between the taps 6a to 6d of the main transformer 1 and the auxiliary autotransformer 8, the turn ratio n 1 of the auxiliary autotransformer 8 is n 1. : N 2 , the shunt ratio of the passing currents of the tap changers 7a and 7b can be set to (1 / n 1 ): (1 / n 2 ). Therefore, as the first and second tap changers 7a and 7b, those having a small allowable passing current can be applied as described above.
また、この場合、タップ6a〜6d間に接続される補助単
巻変圧器８が主変圧器１とは別の鉄心に巻回されている
ので、補助単巻変圧器８のトータル巻数（＝n1+n2）
は、主変圧器１の巻線の１タップ間の巻数と同一にする
必要がなく、経済的な巻数を選択することができる。Further, in this case, since the auxiliary autotransformer 8 connected between the taps 6a to 6d is wound around the iron core different from the main transformer 1, the total number of turns (= n) of the auxiliary autotransformer 8 (= n 1 + n 2 )
Does not have to be the same as the number of turns between one tap of the winding of the main transformer 1, and an economical number of turns can be selected.
なお，上記実施例では補助単巻変圧器８の巻線9A,9B
のそれぞれの巻回数比n1：n2＝2:1としたが，巻回数比
はこれに限らなくともよく，たとえば補助単巻変圧器８
の製造段階で巻回数比を適当に選択することで，任意の
電圧を得ることができ，上記実施例と同様の効果を奏す
る。In the above embodiment, the windings 9A and 9B of the auxiliary autotransformer 8 are used.
N Each of windings ratio 1: n 2 = 2: 1 and the but may even number of turns ratio is not limited to this, for example, auxiliary autotransformer 8
An appropriate voltage can be obtained by appropriately selecting the winding number ratio at the manufacturing stage, and the same effect as that of the above embodiment can be obtained.
［発明の効果］ この発明は以上説明したとおり，複数のタップが設け
られた二次巻線を有する主変圧器と、主変圧器内の一次
巻線および二次巻線とは別の鉄心に巻回されかつ巻回数
比の異なる補助単巻変圧器と、複数のタップと補助単巻
変圧器の両端子とを接続する第１および第２のタップ切
り換え器とを備え、補助単巻変圧器の巻回数比に応じた
タップ電圧が得られるように構成したしたので，主変圧
器の一次巻線と二次巻線の巻回数を変えることなく，容
易にかつきめの細かい電圧調整が行えるという効果があ
る。また，第１のタップ切り換え器7aは，従来より許容
電流の小さなもので差し支えないため，軽量かつ安価に
することができる効果がある。[Effects of the Invention] As described above, the present invention provides a main transformer having a secondary winding provided with a plurality of taps and an iron core separate from the primary winding and the secondary winding in the main transformer. An auxiliary autotransformer provided with an auxiliary autotransformer that is wound and has a different winding ratio, and first and second tap changers that connect a plurality of taps to both terminals of the auxiliary autotransformer. Since it is configured to obtain the tap voltage according to the winding turns ratio, it is possible to easily and finely adjust the voltage without changing the winding turns of the primary and secondary windings of the main transformer. effective. Further, since the first tap changer 7a may have a smaller allowable current than the conventional one, it is possible to reduce the weight and the cost.
第１図はこの発明の一実施例によるタップ電圧調整器の
結線図，第２図は従来のタップ電圧調整器の結線図であ
る。 図において,1……主変圧器,7a,7b……タップ切り換え
器,8A……補助単巻変圧器,9A,9B……巻線である。 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 wiring diagram of a tap voltage regulator according to an embodiment of the present invention, and FIG. 2 is a wiring diagram of a conventional tap voltage regulator. In the figure, 1 ... main transformer, 7a, 7b ... tap changer, 8A ... auxiliary autotransformer, 9A, 9B ... winding. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
る主変圧器と、 前記主変圧器内の一次巻線および二次巻線とは別の鉄心
に巻回されかつ巻回数比の異なる補助単巻変圧器と、 前記複数のタップと前記補助単巻変圧器の両端子とを接
続する第１および第２のタップ切り換え器とを備え、 前記補助単巻変圧器の巻回数比に応じたタップ電圧が得
られるように構成したことを特徴とするタップ電圧調整
器。1. A main transformer having a secondary winding provided with a plurality of taps, and a primary winding and a secondary winding in the main transformer are wound on an iron core different from each other and a winding ratio. Different auxiliary autotransformers, and first and second tap changers that connect the plurality of taps to both terminals of the auxiliary autotransformer, and the turn ratio of the auxiliary autotransformer. A tap voltage regulator characterized in that a tap voltage according to the above is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63145798A JPH081858B2 (en) | 1988-06-15 | 1988-06-15 | Tap voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63145798A JPH081858B2 (en) | 1988-06-15 | 1988-06-15 | Tap voltage regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01315111A JPH01315111A (en) | 1989-12-20 |
| JPH081858B2 true JPH081858B2 (en) | 1996-01-10 |
Family
ID=15393396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63145798A Expired - Lifetime JPH081858B2 (en) | 1988-06-15 | 1988-06-15 | Tap voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081858B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114732A (en) * | 1973-03-09 | 1974-11-01 |
-
1988
- 1988-06-15 JP JP63145798A patent/JPH081858B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01315111A (en) | 1989-12-20 |
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