JPH04184827A - Gas insulation switching device - Google Patents
Gas insulation switching deviceInfo
- Publication number
- JPH04184827A JPH04184827A JP30867790A JP30867790A JPH04184827A JP H04184827 A JPH04184827 A JP H04184827A JP 30867790 A JP30867790 A JP 30867790A JP 30867790 A JP30867790 A JP 30867790A JP H04184827 A JPH04184827 A JP H04184827A
- Authority
- JP
- Japan
- Prior art keywords
- shields
- conductors
- tank
- shield
- conductor
- 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
- 238000009413 insulation Methods 0.000 title claims abstract 4
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 230000005291 magnetic effect Effects 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、ガス絶縁開閉装置の磁界センサ取付構造に関
するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a magnetic field sensor mounting structure for a gas insulated switchgear.
「従来の技術」
従来のガス絶縁開閉装置における、磁界センサ取付構造
の一例を第３図、第４図に示す。第３図は正面断面図、
第４図は第３図の■−■線による断面を示す側面断面図
である。"Prior Art" An example of a magnetic field sensor mounting structure in a conventional gas insulated switchgear is shown in FIGS. 3 and 4. Figure 3 is a front sectional view;
FIG. 4 is a side sectional view showing a cross section taken along the line ■-■ in FIG. 3. FIG.
絶縁スペーサｌａ、ｌｂにより支持された導体８ａ〜８
Ｃを絶縁性ガスが充填された接地タンク９ａ、９ｂに収
納し、それら導体と各々同軸上に強磁性体よりなる円筒
形状のコア１０ａ〜１０ｃを支え板１１により取り付け
ている。Conductors 8a-8 supported by insulating spacers la, lb
C is housed in grounded tanks 9a and 9b filled with insulating gas, and cylindrical cores 10a to 10c made of ferromagnetic material are attached coaxially with these conductors by support plates 11, respectively.
また、コア１０ａ〜１０ｃは円筒の一部に切り欠きかあ
り、そこに磁界センサ１２ａ〜１２ｃを挾み込んでいる
。Further, each of the cores 10a to 10c has a notch in a part of the cylinder, and the magnetic field sensors 12a to 12c are inserted therein.
ここで、コア１０ａ〜１０ｃは、他相による磁界により
磁界センサ１２ａ〜１２ｃの検出値が狂うのを防ぐ役割
を果たしている。Here, the cores 10a to 10c serve to prevent the detection values of the magnetic field sensors 12a to 12c from being distorted by magnetic fields caused by other phases.
「発明が解決しようとする課題」
このように従来のガス絶縁開閉装置においては、他相磁
界の影響を防ぐために強磁性体よりなるコアを導体の回
りに設け、そのコアの中に磁界センサを配置しているた
め、磁界センサ取付構造が複雑で大きくなる。``Problem to be solved by the invention'' In this way, in conventional gas-insulated switchgear, a core made of ferromagnetic material is provided around the conductor in order to prevent the influence of other-phase magnetic fields, and a magnetic field sensor is installed inside the core. Because of this arrangement, the magnetic field sensor mounting structure becomes complicated and large.
また、それらを収納するタンクも大型となるため、ガス
絶縁開閉装置全体の縮小化の阻害要因となっていた。In addition, the tanks that house them are also large, which has been an impediment to downsizing the entire gas insulated switchgear.
「課題を解決するための手段」
本発明では、円筒形状のシールドを導体と同軸に配置し
、シールドの両端をタンクと電気的に接続し、シールド
と導体との間に磁界センサを配置している。"Means for Solving the Problems" In the present invention, a cylindrical shield is arranged coaxially with a conductor, both ends of the shield are electrically connected to a tank, and a magnetic field sensor is arranged between the shield and the conductor. There is.
また、シールドは、両端部で三相が電気的に接続され、
両端部とも三相−括して接地導体によりタンクと電気的
に接続されていることが望ましい。In addition, the shield has three phases electrically connected at both ends,
It is desirable that both ends be electrically connected to the tank through a three-phase ground conductor.
さらに、接地導体は、シールドの支持を兼ねていた方が
良い。Furthermore, it is better for the ground conductor to also serve as support for the shield.
「作用」
上記のように構成されたガス絶縁開閉装置においては、
シールドとタンクとの間に流れる誘導電流により生じる
磁界と、その相の導体電流による磁界とが打ち消しあう
。このため、シールド外部への漏れ磁界はほとんどなく
なり、他相磁界の影響を無視できるため、コアが不要と
なる。"Function" In the gas insulated switchgear configured as above,
The magnetic field generated by the induced current flowing between the shield and the tank and the magnetic field caused by the conductor current of that phase cancel each other out. Therefore, there is almost no magnetic field leaking to the outside of the shield, and the influence of magnetic fields of other phases can be ignored, making the core unnecessary.
また、シールドの両端部とも三相−括して接地している
ため、接地導体に流れる電流は著しく小さくなり、接地
導体の加熱及び劣化を防ぐことができる。In addition, since both ends of the shield are grounded for all three phases, the current flowing through the ground conductor is significantly reduced, and heating and deterioration of the ground conductor can be prevented.
さらに、シールドを接地導体により支えることにより、
取付構造の一層の簡素化が可能である。Furthermore, by supporting the shield with a ground conductor,
Further simplification of the mounting structure is possible.
「実施例」
本発明の実施例を図面に基づいて説明する。第１図は正
面断面図、第２図は第１図のＩ−Ｉ線による断面を示す
側面断面図である。"Example" An example of the present invention will be described based on the drawings. FIG. 1 is a front sectional view, and FIG. 2 is a side sectional view taken along line I--I in FIG. 1.
絶縁スペーサ１ａ、１ｂにより支持された導体２８〜２
ｃを絶縁性ガスが充填された接地タンク３に収納してい
る。また、導体２ａ〜２Ｃの各々と同軸にシールド４ａ
〜４ｃを配置し、それらの内面に磁界センサ５ａ〜５Ｃ
を取り付けている。Conductors 28 to 2 supported by insulating spacers 1a and 1b
c is stored in a grounded tank 3 filled with insulating gas. Also, a shield 4a is provided coaxially with each of the conductors 2a to 2C.
~4c are arranged, and magnetic field sensors 5a~5C are placed on their inner surfaces.
is installed.
ここで、シールド４ａ〜４Ｃの両端部は、金具５ａ、５
ｂにより三相が接続され、接地導体７ａ。Here, both ends of the shields 4a to 4C are metal fittings 5a and 5.
The three phases are connected by b, and the ground conductor 7a.
７ｂを介してタンク３と電気的に導通を保って接続され
ている。さらに接地導体７ａ、７ｂは、シールドの支持
も兼ねている。It is electrically connected to the tank 3 via 7b. Furthermore, the ground conductors 7a and 7b also serve as shield support.
「発明の効果」
本発明は、以上説明したように構成されているので、以
下に記載するような効果を奏する。"Effects of the Invention" Since the present invention is configured as described above, it produces the following effects.
シールドの外部への漏れ磁界がほとんどないため、他相
磁界の影響を排除するためのコアが不要となり、センサ
取付部の構造が簡素化・縮小化する。この結果、タンク
の径寸法・長手寸法ともに大幅に縮小化されるため、ガ
ス絶縁開閉装置全体の縮小化が可能となる。Since there is almost no leakage magnetic field to the outside of the shield, there is no need for a core to eliminate the influence of other phase magnetic fields, simplifying and downsizing the structure of the sensor mounting part. As a result, both the diameter and length of the tank are significantly reduced, making it possible to downsize the entire gas-insulated switchgear.
また、シールドの接地は、三相−括であるため、接地導
体に流れる電流は僅かであり、接地導体の加熱及び劣化
の心配がない。Further, since the shield is grounded in a three-phase manner, the current flowing through the ground conductor is small, and there is no fear of heating or deterioration of the ground conductor.
さらに、シールドを接地導体により支えることにより、
取付構造は一層簡素化される。Furthermore, by supporting the shield with a ground conductor,
The mounting structure is further simplified.
第１図は、本発明になるガス絶縁開閉装置の正面断面図
、第２図は、第１図のＩ−Ｉ線による断面を示す側面断
面図である。
第３図は、従来のガス絶縁開閉装置の正面断面図、第４
図は、第３図のｎ−ｎ線による断面を示す側面断面図で
ある。
図において、
２ａ〜２ｃは導体
３はタンク
４ａ〜４ｃはシールド
５ａ〜５ｃは磁界センサ
６ａ、６ｂは接地導体
である。
特許出願人 株式会社 高岳製作所
”ｍ
晃 ３ ロ
東 ４ 図FIG. 1 is a front sectional view of a gas insulated switchgear according to the present invention, and FIG. 2 is a side sectional view showing a cross section taken along line II in FIG. Figure 3 is a front sectional view of a conventional gas insulated switchgear;
The figure is a side sectional view showing a cross section taken along line nn in FIG. 3. In the figure, 2a to 2c are conductors 3, tanks 4a to 4c, shields 5a to 5c, magnetic field sensors 6a, and 6b are ground conductors. Patent applicant: Takatake Seisakusho Co., Ltd. Akira 3 Roto 4 Figure
Claims (2)
を一括して収納し、三個の円筒形状のシールドを前記三
相導体の各々と同軸に配置し、該シールドの各々の両端
を前記タンクと電気的に接続し、各相の該シールドと前
記導体との間に磁界センサを配置したことを特徴とする
ガス絶縁開閉装置。(1) The three-phase conductors are housed all together in a grounded tank filled with insulating gas, and three cylindrical shields are arranged coaxially with each of the three-phase conductors, and both ends of each of the shields are placed coaxially with each of the three-phase conductors. is electrically connected to the tank, and a magnetic field sensor is disposed between the shield of each phase and the conductor.
した後、接地導体を介して前記タンクと電気的に接続さ
れていることを特徴とする請求項（１）記載のガス絶縁
開閉装置。（３）前記各シールドは、前記接地導体によ
り支持されていることを特徴とする請求項（２）記載の
ガス絶縁開閉装置。(2) The gas insulation according to claim (1), wherein both ends of each of the shields are electrically connected to the tank via a ground conductor after electrically connecting the three phases. Switchgear. (3) The gas insulated switchgear according to claim (2), wherein each of the shields is supported by the ground conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30867790A JPH04184827A (en) | 1990-11-16 | 1990-11-16 | Gas insulation switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30867790A JPH04184827A (en) | 1990-11-16 | 1990-11-16 | Gas insulation switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04184827A true JPH04184827A (en) | 1992-07-01 |
Family
ID=17983959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30867790A Pending JPH04184827A (en) | 1990-11-16 | 1990-11-16 | Gas insulation switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04184827A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637116A (en) * | 1986-06-25 | 1988-01-13 | 関西電力株式会社 | Failure detector of enclosed electric equipment |
-
1990
- 1990-11-16 JP JP30867790A patent/JPH04184827A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637116A (en) * | 1986-06-25 | 1988-01-13 | 関西電力株式会社 | Failure detector of enclosed electric equipment |
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