JPH03184315A - Neutral-point grounding device - Google Patents
Neutral-point grounding deviceInfo
- Publication number
- JPH03184315A JPH03184315A JP1323018A JP32301889A JPH03184315A JP H03184315 A JPH03184315 A JP H03184315A JP 1323018 A JP1323018 A JP 1323018A JP 32301889 A JP32301889 A JP 32301889A JP H03184315 A JPH03184315 A JP H03184315A
- Authority
- JP
- Japan
- Prior art keywords
- neutral
- grounding
- reactor
- point
- series resistor
- 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
- 230000007935 neutral effect Effects 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は回路の中性点アース用接続点を得るための中
性点接地装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a neutral grounding device for obtaining a connection point for neutral grounding in a circuit.
（従来の技術）
中性点接地のために接地変圧器を使用することはよく知
られている。従来ではこのような接地のために第５図に
示すような構成が利用されていた。BACKGROUND OF THE INVENTION The use of grounding transformers for neutral grounding is well known. Conventionally, a configuration as shown in FIG. 5 has been used for such grounding.
同図において１は接地変圧器で、を次をスターに、２次
をデルタに結線しである。In the figure, 1 is a grounding transformer, the next one is connected to the star, and the second one is connected to the delta.
２は中性点リアクトル、３は直列抵抗器である。2 is a neutral point reactor, and 3 is a series resistor.
接地変圧器１、中性点リアクトル２および直列抵抗器３
はそれぞれ別個のケース４〜６に収納されている。接地
変圧器１の中性点は、中性点リアクトル２および直列抵
抗器３を介して接地されるようにしである。Earthing transformer 1, neutral reactor 2 and series resistor 3
are housed in separate cases 4 to 6, respectively. A neutral point of the grounding transformer 1 is arranged to be grounded via a neutral point reactor 2 and a series resistor 3.
（発明が解決しようとする課題） しかしこのような構成によると、接地変圧器ｌ。(Problem to be solved by the invention) However, according to such a configuration, the earthing transformer l.
中性点リアクトル２および直列抵抗器３は別個のケース
に収納されているため、広い設置スペースが必要となる
ばかりでなく、製造価格も高くなる欠点がある。Since the neutral point reactor 2 and the series resistor 3 are housed in separate cases, there is a disadvantage that not only a large installation space is required, but also the manufacturing cost is high.
この発明は１回路の中性点アース用接続点を得るにあた
り、その構成の簡略化を図ることを目的とする。The object of the present invention is to simplify the configuration of a neutral grounding connection point for one circuit.
（１１題を解決するための手段）
この発明は、接地変圧器、中性点リアクトルおよび直列
抵抗器をひとつのタンクに収納したことを特徴とする。(Means for Solving Problem 11) The present invention is characterized in that a grounding transformer, a neutral point reactor, and a series resistor are housed in one tank.
（作用）
接地変圧器、中性点リアクトルおよび直列抵抗器は、ひ
とつのタンクに収納されるため、それぞれを別個のタン
クに収納する場合よりも、これらの設置に要するスペー
スが縮小される。(Function) Since the grounding transformer, neutral point reactor, and series resistor are housed in one tank, the space required for their installation is reduced compared to the case where they are housed in separate tanks.
（実施例） この発明の実施例を第１図によって説明する。(Example) An embodiment of the invention will be explained with reference to FIG.
なお第５図と同じ符号を付した部分は、同一または対応
する部分を示す。接地変圧器１は鉄心工１およびこれに
巻装されたコイル１２とによって構成されである。Note that parts given the same reference numerals as in FIG. 5 indicate the same or corresponding parts. The grounding transformer 1 is composed of an iron core 1 and a coil 12 wound around the core.
図示している中性点リアクトル２は、アルミニュームな
どからなるシールド用の円筒１３と、リアクトル巻線１
４とによって構成された、電磁遮蔽空心式のものである
。この構成のほかにギャップ付き鉄心式のものも使用可
能である。しかし図示構成のものの方が、重心が低くな
り、有利である。The illustrated neutral point reactor 2 includes a shielding cylinder 13 made of aluminum or the like, and a reactor winding 1.
It is an electromagnetic shielding air-core type constructed with 4. In addition to this configuration, a gapped iron core type can also be used. However, the illustrated structure has a lower center of gravity, which is advantageous.
直列抵抗器を用意してもよいが、図示する構成は、中性
点リアクトル２を構成しているリアクトル巻線１４とし
て、抵抗巻線を利用することによって、抵抗器を兼ねる
ように構成しである。Although a series resistor may be prepared, the illustrated configuration uses a resistor winding as the reactor winding 14 that constitutes the neutral point reactor 2, so that it can be configured to also function as a resistor. be.
第１図の実施例では、タンク１５の内部に接地変圧器ｌ
と、抵抗器を兼ねた中性点リアクトル２を、併置するよ
うに収納しである。第２図はその内部の結線状態を示す
回路図である。In the embodiment shown in FIG. 1, a grounding transformer l is installed inside the tank 15.
and a neutral point reactor 2 which also serves as a resistor are housed side by side. FIG. 2 is a circuit diagram showing the internal wiring state.
これに代えて第３図に示すように、接地変圧器１の上段
に中性点リアクトル２を載置するようにしてもよい。な
おこの例では、断路器１６、接地スイッチ１７も併せて
タンク１５内に設置した構成を示している。この内部の
結線状態を示したのが第４図である。ただしこれらは点
検用のものであり、設置しない場合があること勿論であ
る。Alternatively, as shown in FIG. 3, the neutral point reactor 2 may be placed on the upper stage of the grounding transformer 1. Note that this example shows a configuration in which the disconnector 16 and the ground switch 17 are also installed inside the tank 15. FIG. 4 shows the internal wiring state. However, these are for inspection purposes and may not be installed.
（発明の効果）
以上詳述したようにこの発明によれば、中性点接地のた
めに必要な中性点変圧器、中性点リアクトルおよび直列
抵抗器をすべてひとつのタンクの内部に収納するように
構成したので、中性点接地のための構成の設置スペース
は、従来に比較して極めて狭いもので足りるとともに、
製作費も低廉となるといった効果を奏する。(Effects of the Invention) As detailed above, according to the present invention, a neutral point transformer, a neutral point reactor, and a series resistor necessary for neutral point grounding are all housed inside one tank. With this configuration, the installation space for the configuration for neutral point grounding is extremely narrow compared to conventional systems, and
This has the effect of reducing production costs.
第１図はこの発明の実施例を示す断面図、第２図は同回
路図、第３図はこの発明の他の実施例を示す断面図、第
４図は同回路図、第５図は従来例の構成図である。
１・・・接地変圧器、２・・・中性点リアクトル、１４
・・・直列抵抗器を兼ねたリアクトル巻線、工５・・・
タンク。Fig. 1 is a sectional view showing an embodiment of the invention, Fig. 2 is a circuit diagram thereof, Fig. 3 is a sectional view showing another embodiment of the invention, Fig. 4 is a circuit diagram, and Fig. 5 is a sectional view showing an embodiment of the invention. FIG. 2 is a configuration diagram of a conventional example. 1... Earthing transformer, 2... Neutral reactor, 14
...Reactor winding that also serves as a series resistor, work 5...
tank.
Claims (1)
点リアクトルおよび直列抵抗器を備えてなる中性点接地
装置において、 前記接地変圧器、中性点リアクトルおよび直列抵抗器を
ひとつのタンクに収納してなる 中性点接地装置。[Scope of Claim] A neutral point grounding device comprising a grounding transformer, a neutral point reactor and a series resistor that ground the neutral point of the grounding transformer, the grounding transformer, the neutral point reactor A neutral point grounding device consisting of a series resistor and a series resistor housed in one tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323018A JPH03184315A (en) | 1989-12-13 | 1989-12-13 | Neutral-point grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323018A JPH03184315A (en) | 1989-12-13 | 1989-12-13 | Neutral-point grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03184315A true JPH03184315A (en) | 1991-08-12 |
Family
ID=18150209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1323018A Pending JPH03184315A (en) | 1989-12-13 | 1989-12-13 | Neutral-point grounding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03184315A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0638202U (en) * | 1992-08-31 | 1994-05-20 | 日新電機株式会社 | Neutral point grounding device |
| JPH07322426A (en) * | 1994-03-28 | 1995-12-08 | Matsushita Electric Ind Co Ltd | High-voltage power receiving equipment and its transformer |
| US9845011B2 (en) | 2011-11-24 | 2017-12-19 | Mitsubishi Electric Corporation | Auxiliary power source device for vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514706B2 (en) * | 1976-05-17 | 1980-04-18 | ||
| JPS6413712A (en) * | 1987-07-08 | 1989-01-18 | Nissin Electric Co Ltd | Apparatus for neutral grounding |
-
1989
- 1989-12-13 JP JP1323018A patent/JPH03184315A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514706B2 (en) * | 1976-05-17 | 1980-04-18 | ||
| JPS6413712A (en) * | 1987-07-08 | 1989-01-18 | Nissin Electric Co Ltd | Apparatus for neutral grounding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0638202U (en) * | 1992-08-31 | 1994-05-20 | 日新電機株式会社 | Neutral point grounding device |
| JPH07322426A (en) * | 1994-03-28 | 1995-12-08 | Matsushita Electric Ind Co Ltd | High-voltage power receiving equipment and its transformer |
| US9845011B2 (en) | 2011-11-24 | 2017-12-19 | Mitsubishi Electric Corporation | Auxiliary power source device for vehicle |
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