JPH08742Y2 - Gas insulated ungrounded instrument transformer - Google Patents
Gas insulated ungrounded instrument transformerInfo
- Publication number
- JPH08742Y2 JPH08742Y2 JP1987038609U JP3860987U JPH08742Y2 JP H08742 Y2 JPH08742 Y2 JP H08742Y2 JP 1987038609 U JP1987038609 U JP 1987038609U JP 3860987 U JP3860987 U JP 3860987U JP H08742 Y2 JPH08742 Y2 JP H08742Y2
- Authority
- JP
- Japan
- Prior art keywords
- primary coil
- iron core
- secondary coil
- gas
- fixed
- 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
Landscapes
- Transformers For Measuring Instruments (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は計器用変圧器の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a transformer for a meter.
従来、MOFすなわち取引用の計器用変成器（Metering
Outfit）に使用する線間計器用変圧器は、紙絶縁およ
び油絶縁を基本にした油入非接地形計器用変圧器を用い
ていた。Traditionally, MOFs or trading instrument transformers (Metering
The transformer for the line instrument used for Outfit) used a transformer for the oil-filled non-grounded instrument based on paper insulation and oil insulation.
しかし、この構造では次の欠点が免かれなかった。す
なわち、 （１） 油入構造のため保守が困難である。However, this structure was not free from the following drawbacks. That is, (1) maintenance is difficult due to the oil-filled structure.
（２） 油入構造では火災，爆発等のおそれがある。(2) Oil-filled structure may cause fire or explosion.
本考案はこれに対処するためになされたもので、一次
コイルを絶縁碍子で支持して一次，二次コイル間の絶縁
をSF6等のガス空間絶縁によって行なうことにより、上
記の欠点を解消したものである。The present invention has been made to cope with this, and the above-mentioned drawbacks have been solved by supporting the primary coil with an insulator and performing insulation between the primary and secondary coils by gas space insulation such as SF 6 . It is a thing.
第１図は本考案の実施例を示す一部破断正面図、第２
図は同じく平面図、第３図は同じく一部破断側面図であ
る。ここで、巻形１に二次コイル２を巻回し、その上
に、例えばポリエステル等のプラスチックフィルムを巻
回して絶縁層（図示せず）を形成したのち、銅板もしく
はアルミニウム板等の導電性材料を１ターンを形成しな
いように巻いて混触防止板兼用の接地電極３を形成し、
鉄心固定金物６に接続してアース電位に固定する。この
ようにして形成した二次コイル本体４を鉄心５の脚部に
挿入し固定する。FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, and FIG.
The figure is also a plan view and FIG. 3 is a partially cutaway side view. Here, the secondary coil 2 is wound around the winding form 1, and a plastic film such as polyester is wound around the secondary coil 2 to form an insulating layer (not shown), and then a conductive material such as a copper plate or an aluminum plate is formed. Is wound so as not to form one turn to form the ground electrode 3 which also serves as an anti-contact plate.
It is connected to the iron core fixing hardware 6 and fixed to the ground potential. The secondary coil body 4 thus formed is inserted into the leg portion of the iron core 5 and fixed.
一方、銅またはアルミニウム等の導電性材料からなる
一次コイル巻形兼用のシールド７に、銅線とプラスチッ
クフィルムを交互に成層状に巻回して一次コイル８を形
成し、その上に電位固定板９を１ターンを形成しないよ
うに巻き付け、一次コイル８の巻き始めを上記シールド
７に、同じく巻き終りを電位固定板９にそれぞれ接続す
る。On the other hand, a primary coil 8 is formed by alternately winding a copper wire and a plastic film in a layered manner on a shield 7 which also serves as a primary coil winding and is made of a conductive material such as copper or aluminum. Is wound so as not to form one turn, the winding start of the primary coil 8 is connected to the shield 7, and the winding end is connected to the potential fixing plate 9 respectively.
次いで、Ｕ端子としてボス10を溶接により電位固定板
９に取付け、Ｖ端子としてボス11を溶接によりシールド
７に固定する。このようにして一次コイル本体12が完成
する。Next, the boss 10 as a U terminal is attached to the potential fixing plate 9 by welding, and the boss 11 as a V terminal is fixed to the shield 7 by welding. In this way, the primary coil body 12 is completed.
さらに、鉄心固定金物６に固定された台板13に絶縁支
持碍子14を取付け、その上端に設けた支持金具15により
一次コイル本体12を保持させる。なお上記支持金具15
は、電位固定板９に溶接する等の手段により、一次コイ
ル本体12が確実に絶縁支持碍子14により保持されるよう
にする。かくして、一次コイル本体12は二次コイル２と
同軸に、かつシールド７との間に所定間隔の空間を設け
た配置となる。Further, the insulating support insulator 14 is attached to the base plate 13 fixed to the iron core fixing metal 6, and the primary coil body 12 is held by the support metal fitting 15 provided on the upper end thereof. The above support bracket 15
Ensures that the primary coil body 12 is securely held by the insulating support insulator 14 by means such as welding to the potential fixing plate 9. Thus, the primary coil body 12 is arranged coaxially with the secondary coil 2 and with a space between the primary coil body 12 and the shield 7 at a predetermined interval.
なお支持金具15および台板13は図示の形状に限らず、
その他適当の構造とすることができ、要は台板等を介し
て鉄心固定金具６に固定された絶縁支持碍子14により、
一次コイル本体12を確実に保持すればよい。Note that the support fitting 15 and the base plate 13 are not limited to the illustrated shapes,
Any other suitable structure can be used, in short, by the insulating support insulator 14 fixed to the iron core fixing metal 6 through a base plate or the like,
It suffices to securely hold the primary coil body 12.
このようにして互いに同軸に配置され、かつコイル間
を空間絶縁に構成された一次，二次コイルよりなる計器
用変圧器本体を密封容器（図示せず）に収納し所定圧力
の絶縁ガス16を充填することにより、一次コイル８と二
次コイル２との間、一次コイルのＵ端子10とＶ端子11と
の間、および一次コイルのＶ端子11と鉄心５との間がす
べてガス空間絶縁となり、極めて安定した絶縁が保証さ
れる。In this way, the main body of the instrument transformer, which is composed of primary and secondary coils arranged coaxially with each other and having a space insulation between the coils, is housed in a hermetically sealed container (not shown), and an insulating gas 16 of a predetermined pressure is supplied. By filling, gas space insulation is provided between the primary coil 8 and the secondary coil 2, between the U terminal 10 and the V terminal 11 of the primary coil, and between the V terminal 11 of the primary coil and the iron core 5. , Extremely stable insulation is guaranteed.
また一次コイル８は、比較的平等電界となる電位固定
板９と鉄心固定金物６との間に絶縁支持碍子14を配置し
て固定するため、絶縁支持碍子14には市販の絶縁碍子を
そのまま適用することができ、安価で信頼性の高いもの
となる。かくしてガス絶縁構造とした、非接地形の計器
用変圧器を得ることができる。Further, since the primary coil 8 is fixed by disposing the insulating support insulator 14 between the potential fixing plate 9 and the iron core fixing metal object 6 which have a relatively uniform electric field, a commercially available insulator is directly applied to the insulating support insulator 14. Can be cheaper and more reliable. Thus, it is possible to obtain a non-grounded instrument transformer having a gas insulation structure.
なお、上記第１図〜第３図では２本の絶縁支持碍子を
用いた実施例を示したが、第４図に鉄心５の窓内に１本
の絶縁支持碍子を配置して一次コイル本体12を保持する
実施例を示す。ただし同図には簡単のため、絶縁支持碍
子14を鉄心固定金具６に取付けるための台板は記載を省
略する。Although FIGS. 1 to 3 show an embodiment using two insulating support insulators, one insulating support insulator is arranged in the window of the iron core 5 in FIG. An example of holding 12 is shown. However, for simplicity of illustration, the base plate for attaching the insulating support insulator 14 to the iron core fixing member 6 is omitted.
この場合も同様に計器用変圧器本体を絶縁ガス中に収
納し、ガス絶縁非接地形計器用変圧器とすることができ
る。In this case as well, the gas transformer main body can be housed in an insulating gas in the same manner to form a gas-insulated non-grounded voltage transformer.
以上説明したように本考案によるときは、従来の油入
構造の欠点を解消すると共に、 （１） コンパクトな線間計器用変圧器が得られる。As described above, according to the present invention, the drawbacks of the conventional oil-filled structure can be solved, and (1) a compact transformer for a line gauge can be obtained.
（２） １次コイルと２次コイル間および１次コイルと
アース間の絶縁はSF6等の絶縁ガスのみで構成されるの
で信頼性が高い。(2) The insulation between the primary coil and the secondary coil and between the primary coil and the ground is highly reliable because it is composed only of insulating gas such as SF 6 .
（３） 一次コイル保持用として市販の絶縁碍子が容易
に適用できると共に部品点数が極めて少なく、このため
安価である。(3) Commercially available insulators for holding the primary coil can be easily applied, and the number of parts is extremely small, which is inexpensive.
（５） 解体点検修理が容易である。(5) Easy disassembly inspection and repair.
等の効果を得ることができる。And so on.
第１図は本発明の実施例を示す一部破断正面図、第２図
は平面図、第３図は同じく一部破断側面図、第４図は他
の実施例を示す正面図である。 ２……二次コイル、５……鉄心、８……一次コイル、９
……電位固定板、14……絶縁支持碍子、16……絶縁ガ
ス。FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a partially cutaway side view, and FIG. 4 is a front view showing another embodiment. 2 ... secondary coil, 5 ... iron core, 8 ... primary coil, 9
...... Potential fixing plate, 14 …… Insulation support insulator, 16 …… Insulation gas.
Claims (1)
充填されるガス絶縁非接地形計器用変圧器において、巻
形上に巻回された二次コイルと、シールド上に巻回され
その外周に巻回された電位固定板を有する一次コイル
と、鉄心固定金物に固定された台板に取り付けた絶縁支
持碍子を具備し、前記二次コイルを鉄心の脚部に挿入し
て固定するとともに、前記一次コイルを前記電位固定板
並びに支持金具を介して前記絶縁支持碍子で保持し、前
記一次コイルと二次コイルを所定距離の空間を介して同
軸上に配置したことを特徴とするガス絶縁非接地形計器
用変圧器。1. A gas-insulated non-grounded instrument transformer, which is housed in a hermetically sealed container and filled with an insulating gas T of a predetermined pressure, comprising a secondary coil wound on a winding form and a winding wound on a shield. A primary coil having a potential fixing plate wound around its outer circumference and an insulating support insulator attached to a base plate fixed to an iron core fixed metal object are provided, and the secondary coil is inserted and fixed in the leg portion of the iron core. At the same time, the primary coil is held by the insulating support insulator via the potential fixing plate and the support fitting, and the primary coil and the secondary coil are arranged coaxially through a space of a predetermined distance. Insulated non-grounded type voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987038609U JPH08742Y2 (en) | 1987-03-17 | 1987-03-17 | Gas insulated ungrounded instrument transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987038609U JPH08742Y2 (en) | 1987-03-17 | 1987-03-17 | Gas insulated ungrounded instrument transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63145314U JPS63145314U (en) | 1988-09-26 |
| JPH08742Y2 true JPH08742Y2 (en) | 1996-01-10 |
Family
ID=30851012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987038609U Expired - Lifetime JPH08742Y2 (en) | 1987-03-17 | 1987-03-17 | Gas insulated ungrounded instrument transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08742Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5630416B2 (en) * | 1973-07-23 | 1981-07-15 |
-
1987
- 1987-03-17 JP JP1987038609U patent/JPH08742Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63145314U (en) | 1988-09-26 |
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