JP2522446B2 - Water resistor for electric load test - Google Patents
Water resistor for electric load testInfo
- Publication number
- JP2522446B2 JP2522446B2 JP2181956A JP18195690A JP2522446B2 JP 2522446 B2 JP2522446 B2 JP 2522446B2 JP 2181956 A JP2181956 A JP 2181956A JP 18195690 A JP18195690 A JP 18195690A JP 2522446 B2 JP2522446 B2 JP 2522446B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- electrode plate
- electrode plates
- load test
- resistance value
- 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
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- Adjustable Resistors (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電気負荷試験用水抵抗器に係り、特に発電機
の電圧負荷試験に用いられる電気負荷試験用水抵抗器に
関する。The present invention relates to an electric load test water resistor, and more particularly to an electric load test water resistor used for a voltage load test of a generator.
従来、この種の電気負荷試験用水抵抗器は、第５図に
示すように水槽10に水12を注入し、この注入された水12
に電極14、16、18を浸漬する。前記電極14、16、18は棒
状に構成されて等間隔に配置され、それぞれケーブル2
0、22、24を介して遮断器26に接続される。この遮断器2
6は、ケーブル28、30、32を介して発電機34の出力端に
接続されている。また、前記発電機34には原動機36が接
続される。従って、前記発電機34からの発電電流は、そ
れぞれのケーブルを介して前記電極14、16、18に流れ、
これにより前記水12を電気抵抗体として電極14、16、18
の相互間に電流が流れる。そして、前記電極14、16、18
の浸漬深さを適宜に変えることにより、水12中での電極
間抵抗値を増減させ、発電機34の負荷電流、即ち負荷電
力を調整する。Conventionally, this type of water resistor for an electric load test injects water 12 into a water tank 10 as shown in FIG.
The electrodes 14, 16 and 18 are dipped in. The electrodes 14, 16 and 18 are formed in a rod shape and are arranged at equal intervals.
It is connected to the circuit breaker 26 via 0, 22, and 24. This circuit breaker 2
6 is connected to the output end of the generator 34 via cables 28, 30, 32. A prime mover 36 is connected to the generator 34. Therefore, the generated current from the generator 34 flows to the electrodes 14, 16 and 18 through the respective cables,
As a result, the water 12 is used as an electrical resistor for the electrodes 14, 16, 18
A current flows between them. And the electrodes 14, 16, 18
The inter-electrode resistance value in the water 12 is increased / decreased by appropriately changing the immersion depth of, and the load current of the generator 34, that is, the load power is adjusted.
しかし、実際の電極は、発電機電流が数百乃至数千ア
ンペアに及ぶので、通常は第６図に示すように断面くの
字形状に折り曲げられた電極板38、40、42が使用され
る。前記電極板38、40、42はそれぞれ内側面が対向する
ように、且つ等間隔に固定され、絶縁性のロープ44を介
して図示しない懸架装置に連結される。従って、この懸
架装置によって前記ロープ44を介して電極板38、40、42
を吊上げ吊下げることにより、電極板38、40、42の浸漬
深さを変えることができる。However, since the generator current of the actual electrode reaches several hundred to several thousand amperes, the electrode plates 38, 40, 42 which are bent in a dogleg shape as shown in FIG. 6 are usually used. . The electrode plates 38, 40, 42 are fixed at equal intervals so that their inner surfaces face each other, and are connected to a suspension device (not shown) via an insulating rope 44. Therefore, this suspension device connects the electrode plates 38, 40, 42 via the rope 44.
It is possible to change the immersion depth of the electrode plates 38, 40, 42 by hoisting and hanging.
ところで、発電機34の負荷電力は電気抵抗体である水
12に全て付与されるので、水12の水温が上昇する。水温
が上昇すると、水槽10の水12が沸騰するので、沸騰を阻
止する為に水槽10内の水12を適宜に給排水することが必
要となる。そこで、第６図で示したように、水槽10の下
部に給水管46を連通してこの給水管46から水槽10内に水
を供給し、水槽10の上部に取付けられた排水管48から水
温が上昇した水の排水できるようにしている。尚、給水
管46を水槽10の下部に設けた理由は、水槽10の上方から
水を供給すると水面が波立ち水中に気泡が発生するの
で、これらの不具合を阻止する為である。By the way, the load power of the generator 34 is
All 12 is added, so the water temperature of the water 12 rises. When the water temperature rises, the water 12 in the water tank 10 boils, so it is necessary to appropriately supply and drain the water 12 in the water tank 10 in order to prevent boiling. Therefore, as shown in FIG. 6, a water supply pipe 46 is connected to the lower portion of the water tank 10 to supply water from the water supply pipe 46 into the water tank 10, and a water temperature is supplied from a drain pipe 48 attached to the upper portion of the water tank 10. It allows the drainage of the rising water. The reason for providing the water supply pipe 46 in the lower portion of the water tank 10 is to prevent these problems because when water is supplied from above the water tank 10, the water surface swells and bubbles are generated in the water.
しかしながら、電気負荷試験用水抵抗器は電極板38、
40、42の僅かな製造寸法誤差及び電極板38、40、42の各
対向面の離隔寸法の違いにより、水中での電気抵抗値が
微妙に変化するという特性を有する。従って、従来の電
気負荷試験用水抵抗器は、電極板38、40、42間の水抵抗
が微妙に変化しても前記電極板38、40、42同士が一体に
固定されているので、水抵抗値の微調整ができないとい
う欠点がある。However, the water resistor for the electric load test has the electrode plate 38,
It has a characteristic that the electric resistance value in water changes subtly due to a slight manufacturing dimensional error of 40 and 42 and a difference in spacing between the facing surfaces of the electrode plates 38, 40 and 42. Therefore, in the conventional electric load test water resistor, even if the water resistance between the electrode plates 38, 40, 42 slightly changes, the electrode plates 38, 40, 42 are fixed together, so that the water resistance There is a drawback that the value cannot be finely adjusted.
この対策として、電極板38、40、42を各々移動させて
各電極板の相互間隔を調整する方法が考えられている
が、構造が複雑となり、また三相バランスの微調整がで
き難いという欠点がある。As a countermeasure for this, a method of moving the electrode plates 38, 40, 42 respectively to adjust the mutual distance between the electrode plates has been considered, but the structure is complicated and it is difficult to finely adjust the three-phase balance. There is.
本発明はこのような事情に鑑みてなされたもので、簡
単な構造で各電極板間の水抵抗値を調整することができ
る電気負荷試験用水抵抗器を提供することを目的とす
る。The present invention has been made in view of such circumstances, and an object of the present invention is to provide a water resistor for an electric load test capable of adjusting a water resistance value between electrode plates with a simple structure.
本発明は、前記目的を達成する為に、発電機に接続さ
れると共に水槽内に並列に浸漬された複数の電極板（5
2、54、56）の対向面のうち少なくとも一方の対向面
に、対向する電極板との距離を変えることができ且つ電
極板の鉛直方向にほぼ全高さにわたって平行に配設され
る長尺状の補助電極板（58、60、62）を取付けたことを
特徴とする。In order to achieve the above-mentioned object, the present invention provides a plurality of electrode plates (5 connected to a generator and immersed in parallel in a water tank).
(2, 54, 56) at least one of the facing surfaces, the length of which is capable of changing the distance to the facing electrode plate and is arranged in parallel in the vertical direction of the electrode plate over substantially the entire height. The auxiliary electrode plates (58, 60, 62) are attached.
本発明によれば、複数の電極板（52、54、56）の対向
面のうち少なくとも一方の対向面に補助電極板（58、6
0、62）を取付ける。これによって、電極板間の実際の
抵抗値は、電極板（52）と電極板（54）との間の電気抵
抗値R1と、補助電極板（60）と対向する電極板（52）と
の間の電気抵抗値R2との合成電気抵抗値R0となる。従っ
て、前記補助電極板（60）を適宜に移動して電極板（5
2）と補助電極板（60）との距離を変え前記合成電気抵
抗値R0を変えることにより、水中での電気抵抗値を容易
に調整することができる。According to the present invention, the auxiliary electrode plates (58, 6) are provided on at least one of the facing surfaces of the plurality of electrode plates (52, 54, 56).
0, 62). As a result, the actual resistance value between the electrode plates is the electric resistance value R 1 between the electrode plate (52) and the electrode plate (54) and the electrode plate (52) facing the auxiliary electrode plate (60). The combined electric resistance value R 0 and the electric resistance value R 2 are between them. Therefore, the auxiliary electrode plate (60) is appropriately moved to move the electrode plate (5
The electric resistance value in water can be easily adjusted by changing the distance between 2) and the auxiliary electrode plate (60) and changing the combined electric resistance value R 0 .
以下添付図面に従って本発明に係る電気負荷試験用水
抵抗器の好ましい実施例を詳説する。Hereinafter, preferred embodiments of a water resistor for an electric load test according to the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明に係る電気負荷試験用水抵抗器の電極
板の配設状態を示す斜視図が示されている。FIG. 1 is a perspective view showing an arrangement state of electrode plates of a water resistor for an electric load test according to the present invention.
尚、本実施例では、第５図、第６図に示した従来例中
の水槽10と発電機34の構成及び作用については、その説
明を省略する。In the present embodiment, the description of the structure and operation of the water tank 10 and the generator 34 in the conventional example shown in FIGS. 5 and 6 will be omitted.
第１図によれば、電極50は電極板52、54、56によって
構成される。前記電極板52、54、56は断面くの字形状に
形成され、それぞれの対向面との距離が略等間隔になる
ように固定設置されている。According to FIG. 1, the electrode 50 is constituted by electrode plates 52, 54 and 56. The electrode plates 52, 54, 56 are formed in a V shape in cross section, and are fixedly installed so that the distances from the facing surfaces are substantially equal.
また、前記電極板52、54、56の対向面の一方面には、
それぞれ補助電極板58、60、62が取付けれる。前記補助
電極板58、60、62は第２図に示すように長尺状に形成さ
れ、調整ボルト64、64…によって前記電極板52、54、56
にそれぞれ取付けられる。Further, on one surface of the facing surface of the electrode plates 52, 54, 56,
Auxiliary electrode plates 58, 60, 62 can be attached respectively. The auxiliary electrode plates 58, 60, 62 are formed in an elongated shape as shown in FIG. 2, and the electrode plates 52, 54, 56 are adjusted by adjusting bolts 64, 64.
Mounted on each.
前記調整ボルト64は第３図に示すように、前記電極板
52、54、56の外側面から電極板52、54、56に形成された
孔66に挿入されて、その先端に前記補助電極板58、60、
62が固定される。また、前記調整ボルト64の先端にはス
トッパリング68が取付けられ、このストッパリング68に
よって調整ボルト64と補助電極板58、60、62との固定が
強固にされている。尚、調整ボルト64は、電極板52、5
4、56の孔66の外側に固着されたナット70に螺合されて
おり、調整ボルト64を適宜に回転させることによって電
極板52、54、56と補助電極板58、60、62との距離ｔを適
宜に変えることができる。As shown in FIG. 3, the adjusting bolt 64 is used for the electrode plate.
52, 54, 56 are inserted into the holes 66 formed in the electrode plates 52, 54, 56 from the outer surfaces thereof, and the auxiliary electrode plates 58, 60 are attached to the tips thereof.
62 is fixed. A stopper ring 68 is attached to the tip of the adjusting bolt 64, and the stopper ring 68 secures the fixing between the adjusting bolt 64 and the auxiliary electrode plates 58, 60, 62. The adjusting bolt 64 is used for the electrode plates 52, 5
It is screwed to a nut 70 fixed to the outside of the holes 66 of 4, 56, and the distance between the electrode plates 52, 54, 56 and the auxiliary electrode plates 58, 60, 62 by appropriately rotating the adjusting bolt 64. t can be changed appropriately.
電極板52、54、56と補助電極板58、60、62とは導線72
によってそれぞれ電気的に接続されている。The electrode plates 52, 54, 56 and the auxiliary electrode plates 58, 60, 62 are connected to the conductor wire 72.
Are electrically connected to each other.
次に、前記の如く構成された電気負荷試験用水抵抗器
の作用について説明する。Next, the operation of the electric load test water resistor configured as described above will be described.
先ず、電極板52、54、56を図示しない水槽に注入され
た水に浸漬し、発電機からの発電電流を図示しないケー
ブルを介してこれらの電極板52、54、56に流す。前記電
極板52、54、56に発電電流が流れると、前記水槽に注入
された水を電気抵抗体として各電極板52、54、56との間
に電流が流れる。即ち、前記水による電気抵抗値は第４
図に示すように、電極板52と電極板56との間（距離Ｌ）
ではR1となる。また、前記補助電極板58と電極板56との
間（距離ｌ）ではR2となる。従って、電極板52と電極板
56との間で形成される実際の電気抵抗値は、前記電気抵
抗値R1、R2の合成電気抵抗値であるR0となる。この合成
抵抗値R0はR1、R2よりも小さい電気抵抗値であり、補助
電極板58を電極板52に近づけた場合、即ち調整ボルト6
4、64を回転させて補助電極板58を電極板56方向に移動
させた場合には、前記合成抵抗値R0が次第に小さくな
り、また調整ボルト64を反対方向に回転させて補助電極
板58を電極板56から遠ざけると合成抵抗値R0が次第に大
きくなる。First, the electrode plates 52, 54, 56 are immersed in water poured into a water tank (not shown), and a generated current from a generator is supplied to these electrode plates 52, 54, 56 via a cable (not shown). When the generated current flows through the electrode plates 52, 54 and 56, the current flows between the electrode plates 52, 54 and 56 by using the water injected into the water tank as an electric resistor. That is, the electric resistance value due to the water is
As shown in the figure, between the electrode plate 52 and the electrode plate 56 (distance L)
Then it becomes R 1 . Further, R 2 is between the auxiliary electrode plate 58 and the electrode plate 56 (distance 1). Therefore, the electrode plate 52 and the electrode plate
The actual electric resistance value formed between 56 and 56 is R 0 which is a combined electric resistance value of the electric resistance values R 1 and R 2 . This combined resistance value R 0 is an electric resistance value smaller than R 1 and R 2 , and when the auxiliary electrode plate 58 is brought close to the electrode plate 52, that is, the adjustment bolt 6
When the auxiliary electrode plate 58 is moved in the direction of the electrode plate 56 by rotating 4 and 64, the combined resistance value R 0 becomes gradually smaller, and the adjusting bolt 64 is rotated in the opposite direction to rotate the auxiliary electrode plate 58. When the distance from the electrode plate 56 is increased, the combined resistance value R 0 gradually increases.
従って、調整ボルト64を適宜に回転させて補助電極板
58を電極板56に向かって前進又は後退移動させることに
より、電極板52、56間での合成電気抵抗値R0を変化させ
ることができる。これによって、バランスの取りにくい
水中での電気抵抗値の調整を簡単な構造で行うことがで
き、発電機の負荷電流を不平衡を容易に改善するとがで
きる。Therefore, the adjusting bolt 64 should be rotated appropriately so that the auxiliary electrode plate
By moving the electrode plate 58 forward or backward toward the electrode plate 56, the combined electric resistance value R 0 between the electrode plates 52 and 56 can be changed. As a result, it is possible to adjust the electric resistance value in water, which is difficult to balance, with a simple structure, and it is possible to easily improve the imbalance of the load current of the generator.
尚、他の電極板間（電極板54と電極板56、電極56と電
極板52）の合成電気抵抗値R0も前述した手順に従って別
個に調整すれば良い。The combined electrical resistance value R 0 between the other electrode plates (the electrode plate 54 and the electrode plate 56, the electrode 56 and the electrode plate 52) may be adjusted separately according to the procedure described above.
以上説明したように本発明に係る電気負荷試験用水抵
抗器によれば、電極板の対向面のうち少なくとも一方面
に補助電極板を取付け、この補助電極板を適宜に移動し
て電極板間の距離を変え合成電気抵抗値を変えるように
したので、簡単な構造で水中での電気抵抗値を調整する
ことができる。As described above, according to the electrical load test water resistor of the present invention, the auxiliary electrode plate is attached to at least one of the facing surfaces of the electrode plate, and the auxiliary electrode plate is appropriately moved to move between the electrode plates. Since the combined electric resistance value is changed by changing the distance, the electric resistance value in water can be adjusted with a simple structure.
第１図は本発明に係る電気負荷試験用水抵抗器の各電極
板の配設状態を示す斜視図、第２図は本発明に係る電気
負荷試験用水抵抗器の電極板に取付けられた補助電極板
の実施例を示す正面図、第３図は第２図におけるII−II
線上に沿う断面図、第４図は本発明に係る電気負荷試験
用水抵抗器の電気抵抗値の説明図、第５図は従来の電気
負荷試験用水抵抗器の第１実施例を示す説明図、第６図
は従来の電気負荷試験用水抵抗器の第２実施例を示す斜
視図である。 50……電極、52、54、56……電極板、 58、60、62……補助電極板、 64……調整ボルト、72……導線。FIG. 1 is a perspective view showing an arrangement state of each electrode plate of a water resistor for an electric load test according to the present invention, and FIG. 2 is an auxiliary electrode attached to an electrode plate of a water resistor for an electric load test according to the present invention. Fig. 3 is a front view showing an embodiment of the plate, Fig. 3 is II-II in Fig. 2.
A sectional view taken along the line, FIG. 4 is an explanatory view of an electric resistance value of an electric load test water resistor according to the present invention, and FIG. 5 is an explanatory view showing a first embodiment of a conventional electric load test water resistor, FIG. 6 is a perspective view showing a second embodiment of a conventional water resistor for an electric load test. 50 …… electrode, 52, 54, 56 …… electrode plate, 58, 60, 62 …… auxiliary electrode plate, 64 …… adjustment bolt, 72 …… lead wire.
Claims (1)
浸漬された複数の電極板の対向面のうち少なくとも一方
の対向面に、対向する電極板との距離を変えることがで
き且つ電極板の鉛直方向にほぼ全高さにわたって平行に
配設される長尺状の補助電極板を取付けたことを特徴と
する電気負荷試験用水抵抗器。1. A distance between a facing electrode plate and at least one facing face of a plurality of facing faces of a plurality of electrode plates that are connected to a generator and are immersed in parallel in a water tank. A water resistor for an electric load test, comprising a long auxiliary electrode plate arranged in parallel in the vertical direction of the plate over substantially the entire height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2181956A JP2522446B2 (en) | 1990-07-10 | 1990-07-10 | Water resistor for electric load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2181956A JP2522446B2 (en) | 1990-07-10 | 1990-07-10 | Water resistor for electric load test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0468503A JPH0468503A (en) | 1992-03-04 |
| JP2522446B2 true JP2522446B2 (en) | 1996-08-07 |
Family
ID=16109813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2181956A Expired - Lifetime JP2522446B2 (en) | 1990-07-10 | 1990-07-10 | Water resistor for electric load test |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522446B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420647B2 (en) * | 1973-05-21 | 1979-07-24 |
-
1990
- 1990-07-10 JP JP2181956A patent/JP2522446B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0468503A (en) | 1992-03-04 |
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