JPS62175673A - Core for double rating voltmeter and the like - Google Patents
Core for double rating voltmeter and the likeInfo
- Publication number
- JPS62175673A JPS62175673A JP61018744A JP1874486A JPS62175673A JP S62175673 A JPS62175673 A JP S62175673A JP 61018744 A JP61018744 A JP 61018744A JP 1874486 A JP1874486 A JP 1874486A JP S62175673 A JPS62175673 A JP S62175673A
- Authority
- JP
- Japan
- Prior art keywords
- core
- magnetic flux
- main core
- main
- voltmeter
- 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.)
- Pending
Links
- 230000004907 flux Effects 0.000 claims abstract description 45
- 230000009977 dual effect Effects 0.000 claims description 16
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は誘導型電力計における例えば１２７Ｖ、２２
０Ｖ供用定格電圧計に適用される二重定格電圧計等のコ
ア、特にその電流特性の補償に間するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to inductive power meters such as 127V, 22V,
It is used for compensating the core of a dual rated voltmeter applied to a 0V service rated voltmeter, especially its current characteristics.
［従来の技術］
従来の二重定格電圧計等のコアおよびその電流特性補償
について第５図（ａ）、（ｂ）、（ｃ）、第６図および
第７図を用いて説明する。[Prior Art] The core of a conventional dual rated voltmeter and its current characteristic compensation will be explained with reference to FIGS. 5(a), (b) and (c), FIGS. 6 and 7.
コア（１）は第５図（ｂ）に示すように、はぼＥ字型で
あり、ギャップ部（Ｇｌ）、（Ｇ２）を有する。As shown in FIG. 5(b), the core (1) is E-shaped and has gap portions (Gl) and (G2).
コア（１）には図示しないスペーサによりコア（１）に
対して一定間隔を維持し、かつギャップ部（Ｇ１）、（
Ｇ２）を覆うように磁性体（２）が設けられている。The core (1) is maintained at a constant distance from the core (1) by a spacer (not shown), and has gap portions (G1), (
A magnetic body (2) is provided so as to cover G2).
図示しないコイルに電流が流れると主磁束は矢印（４）
で示す方向に発生する。ギャップ部（Ｇ１）、（Ｇ２）
には直接ギャップ部（Ｇ１）、（Ｇ２）を通る分路磁束
（３ａ）、（３ｃ ）が、また磁性体（２）を通る分路
磁束（３ｂ）、（３ｄ）がそれぞれ発生する。電圧計等
の円板（図示せず）を駆動するための有効磁束は矢印（
５）で示す方向に発生する。第６図はコイルに印加され
る電圧と前述の各磁束の磁束密度との関係を示す特性図
であり、図中（ａ）は直接ギャップ部（Ｇ１）、（Ｇ２
）を通る分路磁束（３ａ）。When current flows through a coil (not shown), the main magnetic flux is indicated by the arrow (4)
Occurs in the direction shown. Gap part (G1), (G2)
Shunt magnetic fluxes (3a) and (3c) that directly pass through the gap portions (G1) and (G2), and shunt magnetic fluxes (3b) and (3d) that pass through the magnetic body (2) are generated, respectively. The effective magnetic flux for driving a disc (not shown) such as a voltmeter is indicated by the arrow (
It occurs in the direction shown in 5). FIG. 6 is a characteristic diagram showing the relationship between the voltage applied to the coil and the magnetic flux density of each of the aforementioned magnetic fluxes, in which (a) shows the direct gap portion (G1), (G2
) through the shunt magnetic flux (3a).
（３ｃ）、および磁性体（２）を通る分路磁束（３ｂ）
。(3c), and the shunt magnetic flux (3b) passing through the magnetic body (2)
.
（３ｄ）の磁気特性、（ｂ）はコア（１）を通る主磁束
（４）の磁気特性を示している。（Ｃ）は前述の電圧計
等の円板（図示せず）を駆動するための有効磁束（５）
の磁気特性を示しており、主磁束（特性ｂ）を分路磁束
（特性ａ）で補償することにより直線性の改善を行って
いる（すなわち、各電圧時における特性すの値−特性ａ
の値＝特性Ｃの値）。(3d) shows the magnetic properties, and (b) shows the magnetic properties of the main magnetic flux (4) passing through the core (1). (C) is the effective magnetic flux (5) for driving the disc (not shown) of the aforementioned voltmeter, etc.
The linearity is improved by compensating the main magnetic flux (characteristic b) with the shunt magnetic flux (characteristic a) (that is, the value of characteristic S at each voltage - characteristic a).
value of characteristic C).
第７図は電流特性を示す図であり、高い方の定格電圧時
の電流（負荷）特性をＩＨ（実線）で、低い方の定格電
圧時の電流（負荷）特性を１１（点線）でそれぞれあら
れしている。軽負荷時における電流（負荷）特性は図示
しない摩擦補償トルク装置、つまり短絡金属環もしくは
鉄片を装備したものによって電圧の２乗に比例する影響
を受け、第７図に示すように軽負荷時においては高い方
の定格電圧時と低い方の定格電圧時とにおいて電流（負
荷）特性 ＩＨとＩｃの間には差が生じる傾向にある。Figure 7 shows the current characteristics, with IH (solid line) representing the current (load) characteristics at the higher rated voltage, and 11 (dotted line) representing the current (load) characteristics at the lower rated voltage. It's raining. The current (load) characteristics at light loads are affected by a friction compensation torque device (not shown), that is, one equipped with a short-circuit metal ring or iron piece, in proportion to the square of the voltage, and as shown in Figure 7, at light loads, There is a tendency for a difference to occur between the current (load) characteristics IH and Ic at the higher rated voltage and at the lower rated voltage.
［発明が解決しようとする問題点１
以上のように軽負荷時においては高い方の定格電圧時と
低い方の定格電圧時とにおいて電流（負荷）特性ＴＨと
■Ｌは誤差が開く傾向があるため、これら両定格電圧の
時に軽負荷時の特性差を規格内に抑えることは困難であ
り、このコアを用いた二重定格電圧計等では何れかの方
の表示で誤差が大きいという問題点を有していた。[Problem to be solved by the invention 1 As mentioned above, at light loads, there is a tendency for errors to occur in the current (load) characteristics TH and ■L between the higher rated voltage and the lower rated voltage. Therefore, it is difficult to suppress the characteristic difference at light loads at both rated voltages to within the standard, and the problem with dual rated voltmeters using this core is that there is a large error in the display of either one. It had
この発明は以上のような問題点を解決するためになされ
たものであり、軽負荷時における高低両定格電圧時の電
流（負荷）特性を補正し、誤差を規格内に抑えた二重定
格電圧計等のコアを提供することを目的としている。This invention was made to solve the above-mentioned problems, and it corrects the current (load) characteristics at both high and low rated voltages during light loads, and provides a dual rated voltage that suppresses errors within the standard. The purpose is to provide the core of the system.
［問題点を解決するための手段］
この発明に係る二重定格電圧計等のコアは、主磁束を発
生させる主コアと、主コアとは磁気特性の異なる補助コ
アを設けている。[Means for Solving the Problems] A core of a dual rated voltmeter or the like according to the present invention includes a main core that generates a main magnetic flux and an auxiliary core that has magnetic properties different from those of the main core.
［作用］
補助コアは高い方の定格電圧時においてはほぼ主コアと
同と磁束密度を有し、低い方の定格電圧時には主コアよ
りも高い磁束密度を有する。そのため補助コアにより発
生する磁束は位相の遅れを生じ、主コア（または、それ
と同じ磁気特性を有する別の補助コア）により発生する
磁束とにより移動磁界が発生し、この移動磁界により低
い方の定格電圧時における軽負荷時の電流（ｊＪ荷）特
性はプラス側に引上げられる。[Function] The auxiliary core has almost the same magnetic flux density as the main core at the higher rated voltage, and has a higher magnetic flux density than the main core at the lower rated voltage. Therefore, the magnetic flux generated by the auxiliary core has a phase lag, and the magnetic flux generated by the main core (or another auxiliary core with the same magnetic properties) generates a moving magnetic field, which causes the lower rated The current (jJ load) characteristics under light load at voltage are raised to the positive side.
［実施例］
以下この発明における二重定格電圧計等のコアの一実施
例を第１図（ａ）、（ｂ）、（Ｃ）、第２図、第３図お
よび第４図を用いて説明する。[Example] An example of the core of a dual rated voltmeter, etc. according to the present invention will be described below using Figs. 1(a), (b), (C), Figs. explain.
主コア（１０１）は第１図（ｂ）に示すようにほぼＥ字
型をしており、ギャップ部（０１０１）、（Ｇ １０２
）を有する。主コア（１０１）のほぼＥ字型をなす一面
には図示しないスペーサにより主コア（１０１）と一定
の間隔を維持するように設けられ、さらにギャップ部（
Ｇ １０１）、（Ｇ １０２）を覆うように磁性体（１
０２）が設けられている。また、はぼＥ字型をなす他の
一面には主コア（１０１）と同じ磁気特性を有する（同
じ材料からなる）第１の補助コア（１１１）と、主コア
（１０１）とは異なる磁気特性を有する（異なった材料
からなる）第２の補助コア（１１２）が設けられている
。第１の補助コア（１１１）と第２の補助コア（１１２
）は図に示すように、主コア（１０１）のほぼＥ字型を
有する面上で対称に配置されている。各コアの材料は無
方向性の冷間圧延ケイ素鋼板であって、特に主コア（１
０１）および第１の補助コア（１１１）にはＪＩＳ−Ｃ
２５５２で規定されたＳ１２を用い、また第２の補助コ
ア（１１２）には同じ＜ＪＩＳ−Ｃ２５５２で規定され
たＳ１８を用いである。The main core (101) is approximately E-shaped as shown in FIG.
). A spacer (not shown) is provided on one side of the main core (101), which is approximately E-shaped, to maintain a constant distance from the main core (101), and a gap portion (
Magnetic material (1) covers G101) and (G102).
02) is provided. In addition, on the other side of the E-shape, there is a first auxiliary core (111) having the same magnetic properties (made of the same material) as the main core (101), and a magnetic field different from the main core (101). A second auxiliary core (112) having properties (made of a different material) is provided. The first auxiliary core (111) and the second auxiliary core (112)
) are arranged symmetrically on the substantially E-shaped surface of the main core (101), as shown in the figure. The material of each core is a non-oriented cold-rolled silicon steel plate, especially the main core (1
01) and the first auxiliary core (111) are JIS-C
S12 defined in JIS-C2552 is used, and S18 defined in JIS-C2552 is used for the second auxiliary core (112).
各材料の組合せはＳ１２およびＳ１８に限定する必要は
なく、磁気特性が異なっておれば組合わせは自由である
。The combination of materials does not need to be limited to S12 and S18, and any combination is possible as long as they have different magnetic properties.
主コア（１α１）に発生する主磁束、ギャップ部（Ｇ
１０１）、（Ｇ １０２）および磁性体（１０２）に発
生する分路磁束は従来例と同様であるので説明を省略し
、ここでは主に第１の補助コア（１１１）および第２の
補助コア（１１２）により発生する磁束（１５１） 、
（１５２）について説明する。The main magnetic flux generated in the main core (1α1), the gap part (G
101), (G 102) and the magnetic body (102) are the same as in the conventional example, so their explanation will be omitted. Magnetic flux (151) generated by (112),
(152) will be explained.
第２図はコイル（図示せず）に印加される電圧とコア部
に発生する磁束の密度との関係を示す磁気特性曲線であ
り、実線（ｅ）は主コア（１０１）および第１の補助コ
ア（１１１）の材料（例えば５１２）の特性を、点線（
ｄ）は第２の補助コア（１１２）の材ｒ４（例えば８１
８）の特性をそれぞれ示している。高い方の定格電圧Ｖ
Ｈにおいては主コア（１０１）と第１の補助コア（１１
１）および第２の補助コア（１１２）は同じ磁束密度を
有するため第１の補助コア（１１１）、第２の補助コア
（１１２）によって発生する磁束（１５１）、（１５２
）の磁束量および位相差は生じない。したがって、実質
的に補助コアを設けていない場合（従来例）と同様とな
り、第４図実線で示す高い方の定格電圧時の電流（負荷
）特性ＩＨは第７図実線で示す従来例の電流（負荷）特
性ＩＨと同じになる。一方、低い方の定格電圧ＶＬにお
いては、第２の補助コア（１１２）の方が第１の補助コ
ア（１１１）よりも磁束密度が高いため第２の補助コア
（１１２）により発生する磁束（１５２）の方が第１の
補助コア（１１１）により発生する磁束（１５１）より
も磁束量が大きく、しかも位相は遅れている（電磁石の
場合、コアの量もしくは材質で磁束量を増せば位相は遅
れる）、シたがって、第３図のベクトルで示すように磁
束（１５１）と磁束（１５２）により移動磁界が発生し
、磁束（１５１）より磁束（１５２）の方向に移動する
。この移動磁界は駆動力となり、電圧計等の負荷電流の
大きさには無関係なので負荷電流の大きさに反比例して
その効果が大きくなる。Figure 2 is a magnetic characteristic curve showing the relationship between the voltage applied to the coil (not shown) and the density of magnetic flux generated in the core, and the solid line (e) is the main core (101) and the first auxiliary core. The properties of the material (for example 512) of the core (111) are indicated by the dotted line (
d) is the material r4 (e.g. 81
8). Higher rated voltage V
In H, the main core (101) and the first auxiliary core (11
1) and the second auxiliary core (112) have the same magnetic flux density, so the magnetic fluxes (151) and (152) generated by the first auxiliary core (111) and the second auxiliary core (112)
) magnetic flux amount and phase difference do not occur. Therefore, the current (load) characteristic IH at the higher rated voltage shown by the solid line in Figure 4 is substantially the same as the case without the auxiliary core (conventional example), and the current (load) characteristic IH at the higher rated voltage shown by the solid line in Figure 7 is the current of the conventional example shown by the solid line in Figure 7. (Load) characteristics are the same as IH. On the other hand, at the lower rated voltage VL, the second auxiliary core (112) has a higher magnetic flux density than the first auxiliary core (111), so the magnetic flux generated by the second auxiliary core (112) ( 152) has a larger amount of magnetic flux than the magnetic flux (151) generated by the first auxiliary core (111), and the phase is delayed (in the case of an electromagnet, if you increase the amount of magnetic flux by changing the amount or material of the core, the phase will change) Therefore, as shown by the vectors in FIG. 3, a moving magnetic field is generated by the magnetic flux (151) and the magnetic flux (152), and the magnetic flux (151) moves in the direction of the magnetic flux (152). This moving magnetic field becomes a driving force, and since it is unrelated to the magnitude of the load current of a voltmeter or the like, its effect increases in inverse proportion to the magnitude of the load current.
そのため、軽負荷時における誤差がプラス方向に引上げ
られ、第４図点線で示すように低い方の定格電圧時の電
流（負荷）特性■Ｌは高い方の定格電圧時の電流（ｊ４
．荷）特性ＩＨと近似したものになる。Therefore, the error at light loads is pulled up in the positive direction, and as shown by the dotted line in Figure 4, the current (load) characteristic at the lower rated voltage ■L is the current at the higher rated voltage (j4
．． (load) characteristic is similar to IH.
［効果］
以上のように、この発明にがかる゛二重定格電圧計等の
コアを用いると、高い方の定格電圧時には磁気特性は補
償されず、低い方の定格電圧時においてのみ軽負荷時の
電流（ｊＬ荷）特性がプラス方向に補償されるため、高
低両定格電圧時の各電流（負荷）特性は近似したものに
なる。したがって、従来のコアと比較して、高低両定格
電圧時における誤差は著しく減少する。[Effect] As described above, when the core of the dual rated voltmeter, etc. according to the present invention is used, the magnetic characteristics are not compensated for at the higher rated voltage, and the magnetic characteristics are not compensated for at light loads only at the lower rated voltage. Since the current (jL load) characteristics are compensated in the positive direction, the current (load) characteristics at both high and low rated voltages become similar. Therefore, compared to conventional cores, errors at both high and low rated voltages are significantly reduced.
第１図（ａ）、（ｂ）、（ｃ）はそれぞれこの発明にか
かる二重定格電圧計等のコアを示す正面図、上面図、側
面図、第２図は主コア（１０１）、第１の補助コア（１
１１）、および第２の補助コア（１１２）の各磁気特性
を示す図、第３図は第１の補助コア（１１１）および第
２の補助コア（１１２）により発生する磁束による有効
磁束を示すベクトル図、第４図はこの発明にかかるコア
を用いた二重定格電圧計の高低両定格電圧時における電
流（負荷）特性を示す図、第５図（ａ）、（ｂ）、（Ｃ
）はそれぞれ従来の二重定格電圧計等のコアを示す正面
図、上面図、側面図、第６図は従来の二重定格電圧針等
の主磁束、分路磁束および有効磁束を示す図、第７図は
従来のコアを用いた二重定格電圧計の高低両定格電圧時
における電流（負荷）特性を示す図である。
図中（１０１）は主コア、（１１１）は第１の補助コア
、（１１２）は第２の補助コアである。
代 理 人 大 岩 増 雄第１ 図
（（１）
第１図（ｂ） 第１図（Ｃ）
第２図
壇し
ｓ４図
第５図（Ｇ）
第５図（ｂ） 第５図（Ｃ）第６区
電斤（Ｖ）→
第７図FIGS. 1(a), (b), and (c) are a front view, top view, and side view showing the core of a dual rated voltmeter, etc. according to the present invention, and FIG. 2 is a main core (101), 1 auxiliary core (1
11) and the second auxiliary core (112), FIG. 3 shows the effective magnetic flux due to the magnetic flux generated by the first auxiliary core (111) and the second auxiliary core (112). The vector diagram and FIG. 4 are diagrams showing the current (load) characteristics at both high and low rated voltages of a dual rated voltmeter using the core according to the present invention, and FIGS. 5 (a), (b), (C
) are a front view, top view, and side view showing the core of a conventional dual rated voltmeter, respectively, and Figure 6 is a diagram showing the main magnetic flux, shunt magnetic flux, and effective magnetic flux of a conventional dual rated voltage needle, etc. FIG. 7 is a diagram showing the current (load) characteristics of a dual rated voltmeter using a conventional core at both high and low rated voltages. In the figure, (101) is a main core, (111) is a first auxiliary core, and (112) is a second auxiliary core. Agent Masuo Oiwa Figure 1 ((1) Figure 1 (b) Figure 1 (C) Figure 2 Figure 5 (G) Figure 5 (b) Figure 5 (C ) 6th ward electric box (V) → Fig. 7
Claims (4)
主コアと、 高低両定格電圧時における電流特性の差を補償するため
前記主コアに並置され前記主コアとは磁気特性の異なる
補助コアとを具備した二重定格電圧計等のコア。(1) A main core for generating the main magnetic flux that drives a voltmeter, etc., and an auxiliary core that is juxtaposed to the main core and has different magnetic characteristics than the main core to compensate for the difference in current characteristics at high and low rated voltages. A core of a dual rated voltmeter, etc., which is equipped with a core.
前記主コアとほぼ等しい磁束密度を有し、低い方の定格
電圧時においては前記主コアより高い磁束密度を有する
ことを特徴とする特許請求の範囲第１項記載の二重定格
電圧計等のコア。(2) The auxiliary core has a magnetic flux density approximately equal to that of the main core at a higher rated voltage, and has a higher magnetic flux density than the main core at a lower rated voltage. A core of a dual rated voltmeter, etc. according to claim 1.
冷間圧延ケイ素鋼板で構成され、ＪＩＳ−Ｃ２５５２に
規定された種類のうち互いに異なった記号を有するケイ
素鋼板を用いたことを特徴とする特許請求の範囲第１項
記載の二重定格電圧計等のコア。(3) The main core and the auxiliary core are each made of non-oriented cold-rolled silicon steel plates, and are characterized by using silicon steel plates having different symbols from among the types specified in JIS-C2552. A core of a dual rated voltmeter, etc. according to claim 1.
２５５２に規定された種類のうちＳ１２およびＳ１８を
用いたことを特徴とする特許請求の範囲第１項記載の二
重定格電圧計等のコア。(4) The main core and auxiliary core are each JIS-C
2. A core for a dual rated voltmeter or the like according to claim 1, characterized in that S12 and S18 are used among the types specified in US Pat. No. 2,552.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61018744A JPS62175673A (en) | 1986-01-29 | 1986-01-29 | Core for double rating voltmeter and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61018744A JPS62175673A (en) | 1986-01-29 | 1986-01-29 | Core for double rating voltmeter and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62175673A true JPS62175673A (en) | 1987-08-01 |
Family
ID=11980163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61018744A Pending JPS62175673A (en) | 1986-01-29 | 1986-01-29 | Core for double rating voltmeter and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62175673A (en) |
-
1986
- 1986-01-29 JP JP61018744A patent/JPS62175673A/en active Pending
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