JPS63244726A - Gas-insulated potential transformer - Google Patents
Gas-insulated potential transformerInfo
- Publication number
- JPS63244726A JPS63244726A JP62078515A JP7851587A JPS63244726A JP S63244726 A JPS63244726 A JP S63244726A JP 62078515 A JP62078515 A JP 62078515A JP 7851587 A JP7851587 A JP 7851587A JP S63244726 A JPS63244726 A JP S63244726A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- gas
- base
- voltage
- transformer
- 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.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 239000003566 sealing material Substances 0.000 abstract description 2
- 230000001131 transforming effect Effects 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、′ｇｔ圧変圧変金部縁ガスと共に密閉タンク
内に収納したガス絶縁計器用変圧器に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a gas-insulated instrument transformer housed in a closed tank together with a 'gt pressure transformer edge gas.
（従来の技術）
ガス絶縁密閉形開閉装置（以下ＧＩＳと称す）は、開閉
機器要素を高圧力の不燃性を有する絶縁ガスと共に密閉
タンクに収納して構成されておシ。(Prior Art) A gas-insulated sealed switchgear (hereinafter referred to as GIS) is constructed by storing switching equipment elements together with a high-pressure nonflammable insulating gas in a sealed tank.
小形なうえ保守・点検が容易なことから近年は三相−指
形や高電圧化が進んでいる。Three-phase, finger-type and high-voltage systems have become popular in recent years because they are small and easy to maintain and inspect.
このＧＩ８の構成要素の１つにガス絶縁計器用変圧器が
める。このガス絶縁計器用変圧器は電圧変成部絶縁ガス
と共に密閉タンク内に収納したもので一般に電磁形が採
用されており、電圧変成部は閉磁路に構成された鉄心の
一脚に低圧コイルと高圧コイルを巻回装着して成シ、三
相−指形はこの電圧変成部を密閉タンク内に三個収納し
たもので、その構造は第２１図に示すようになりている
。One of the components of this GI8 is a gas insulated potential transformer. This gas-insulated instrument transformer has a voltage transformer part housed in a sealed tank together with insulating gas, and is generally of an electromagnetic type. The three-phase finger-type transformer is constructed by winding a coil and storing three of these voltage transformers in a sealed tank, and its structure is shown in FIG. 21.
すなわち、額縁形に構成された閉磁路鉄心Ｊの一脚に低
圧コイル２を巻装し、この低圧コイル２の外側に、これ
と同軸状に高圧コイル３を巻装している。高圧コイル３
の外周には電界を緩和するための高圧シールド４を装着
して、！圧変酸部５を構成している０％に、三相−指形
のガス絶縁計器用変成器の場合は一般に電圧変成部５を
ベース６に三個配置固定した後に１両端に７ランジ７ｍ
を備えたタンク７をペース６に取付、更にカバー８、絶
縁スペーサ９をタンク７の上部に装着して密閉タンク２
０が構成されている。That is, a low-voltage coil 2 is wound around one leg of a closed magnetic circuit iron core J configured in a picture frame shape, and a high-voltage coil 3 is wound coaxially with the outside of this low-voltage coil 2. High voltage coil 3
A high-voltage shield 4 is attached to the outer periphery of the unit to alleviate the electric field. In the case of a three-phase finger-shaped gas insulated instrument transformer, three voltage transformers 5 are generally arranged and fixed on a base 6, and then one 7-lunge 7m is installed at each end of the voltage transformer 5.
Attach tank 7 equipped with
0 is configured.
電圧変成８１５５の外部引出しは、絶縁スペーサ９を介
して行われる。このような密閉タンク２ｏにおいてペー
ス６、タンク７、カバー８、絶縁スペーサ９等の部品間
はガスシール用のガスケット（図示せず）をはさみボル
ト等の締結部品で外気とじゃへいし、前記密閉タンク２
ｏの内部空間には、高圧力の例えばＳＦ・ガス等の絶縁
ガスＩＱを封入して、三相−指形のガス絶縁計器用変成
器が構成されている。Voltage transformer 8155 is led out through insulating spacer 9 . In such a sealed tank 2o, gas sealing gaskets (not shown) are used between parts such as the pace 6, the tank 7, the cover 8, the insulating spacer 9, etc., and fastening parts such as scissor bolts are used to block the outside air. 2
A high-pressure insulating gas IQ such as SF gas is sealed in the internal space of o, thereby forming a three-phase finger-shaped gas-insulated instrument transformer.
高圧力の絶縁ガス１０が封入される密閉夕／り２０は圧
力容器として使用されるため封入するガス圧力と、容器
の大きさによシおのずと、各部品の板厚が規定される。Since the sealed vessel 20 filled with high-pressure insulating gas 10 is used as a pressure vessel, the thickness of each component is naturally determined by the gas pressure to be sealed and the size of the vessel.
更に近年は高電圧化や三相−指形化が進み容器の径がま
すます増大化するに従い、各部品の板厚も増加し、ガス
絶縁計器用変成器の全体重量における各部品で占る割合
が非常に高くなっている。Furthermore, in recent years, with the advancement of higher voltage and three-phase finger-shaped containers, and the diameter of the container has become larger, the thickness of each component has also increased, and each component accounts for the overall weight of a gas-insulated instrument transformer. The percentage is extremely high.
一方、ガス絶縁計器用変圧器を支持・固定するＧＩＳは
、ガス絶縁計器用変圧器の重量増大化に伴って、支持・
固定構造や基礎設計にまで影響を与えるためＧＩＳ全体
としての価格が上昇する結果になっている。ｔた。密閉
タンク２０の内部に収納する電圧変成部５を固定するた
めに１部品の分割数や分割部品間のシール長が多く在り
、気密信頼性低下の欠点がおった。On the other hand, as the weight of gas-insulated voltage transformers increases, GIS, which supports and secures gas-insulated voltage transformers,
This has resulted in an increase in the price of GIS as a whole, as it affects the fixed structure and foundation design. It was. In order to fix the voltage transformer 5 housed inside the sealed tank 20, the number of divisions of one part and the seal length between the divided parts are large, resulting in a reduction in airtight reliability.
本発明の目的は、高電圧化や三相−指形化により密閉タ
ンクが増大化する傾向においても、より軽薫化をはかシ
、シール部の信頼性向上と、シール加工作業の低減を図
ワた安価で信頼性のめるガス絶縁計器用変圧器を提供す
ることにある。The purpose of the present invention is to achieve lighter smoke, improve the reliability of the seal part, and reduce seal processing work, even as the number of sealed tanks increases due to higher voltage and three-phase finger-shaped tanks. Another object of the present invention is to provide a gas-insulated voltage transformer that is inexpensive and highly reliable.
（問題点を解決するための手段およびその作用）本発明
におけるガス絶縁計器用変圧器は、密閉タンクを構成す
る各部品のうちタンクとペースを溶接による一体構造に
した上、更に内部に収納する電圧変成部をペースに竪固
に固定するスペースも保有させ、なお且つペースの重量
を軽減するようＫしたものでおる。(Means for Solving the Problems and Their Effects) The gas-insulated instrument transformer of the present invention has the tank and pace, among the parts constituting the hermetically sealed tank, made into an integral structure by welding and further housed inside. It has a space for firmly fixing the voltage transformation part to the pace, and is designed to reduce the weight of the pace.
（実施例）
以下に本発明におけるガス絶縁計器用変圧器の一実施例
を図面を参照して説明する。(Example) An example of a gas-insulated instrument transformer according to the present invention will be described below with reference to the drawings.
第１図におい１高電圧用単相形のガス絶縁計器用変圧器
の場合を示す。FIG. 1 shows the case of a high-voltage single-phase gas-insulated instrument transformer.
密閉タンク１１は、鉄心１．低圧コイル２、高圧コイル
３および高圧シールド４等から成る電圧変成部５を収納
し、かつ必要なる絶縁距離を確保できるような径を有す
る円筒形のタンク１ノ畠を有し、このタンク１１＆の上
部にはカバー８と外気を気密に保ちながら１機械的に締
結するためのフランジｌｌｂを設はタンク１２１＆の下
部はタンク径に一致する外径を有し、かつ電圧変成部５
を固定させるに必要なスペースを残して内側に穴１１ｅ
を設けた平板状のペースＩＩＣを溶接で一体構造にして
いる。更にベースｚｌｃｏ穴ｚｚ・径に合致する径を持
つ鏡板ＪＪｄを、穴１１ｅを有するペースｌｌｃと溶接
で一体構造にしている。The sealed tank 11 has an iron core 1. It has a cylindrical tank 1 which houses the voltage transformer 5 consisting of the low voltage coil 2, the high voltage coil 3, the high voltage shield 4, etc., and has a diameter that can ensure the necessary insulation distance. The upper part is provided with a flange Ilb for mechanically connecting the cover 8 to the outside air while keeping the outside air airtight.
Hole 11e inside leaving the necessary space to fix the
The flat plate-shaped PACE IIC is welded into an integral structure. Further, a head plate JJd having a diameter matching the diameter of the base zlco hole zz is integrally welded to the pace llc having the hole 11e.
このように一体構造にした密閉タンク１１に上部７ラン
ジＩｌｂの開口部よシミ圧変酸部５を吊シ込み、！圧変
酸部５をペースｌｌｃに特殊治工具を用いてボルトで堅
固に締結する。その後、カバー８と絶縁スペーサ９をガ
スケット等のシール材を介在させてタンク１１凰の上部
に気密に締結して、密閉タンク１１の内部空間にＳＦ、
ガス等の絶縁性ガス１０を所定の圧力で封入している。Into the airtight tank 11 which has the integral structure as described above, the stain pressure converting unit 5 is hung from the opening of the upper 7 langes Ilb, and! The pressure converting acid part 5 is firmly fastened to the paste llc with bolts using a special jig and tool. Thereafter, the cover 8 and the insulating spacer 9 are airtightly fastened to the upper part of the tank 11 with a sealing material such as a gasket interposed therebetween, so that the SF,
An insulating gas 10 such as gas is sealed at a predetermined pressure.
このようなガス絶縁計器用変圧器であると、全体重量に
大きなウエートを占る密閉タンク１ノのうち下部のタン
ク７ランジが１枚減るうえペースとして穴ｌｉｅを有す
る平板状のペースｌｌｃを採用することによシ、外径の
縮小化と中央部の空洞による大きな重量低減がはかれる
ためＧＩＳの保持・基礎構造が簡略される。With such a gas-insulated instrument transformer, the lower tank 7 lunge is reduced by one out of the sealed tank 1 which accounts for a large weight in the overall weight, and a flat pace llc with a hole lie is used as the pace. By doing so, the outer diameter can be reduced and the weight can be significantly reduced due to the hollow space in the center, which simplifies the maintenance and basic structure of the GIS.
一方、タンクとペースをシールする機械加工費の削除や
組み立て時のボルト締結作業削除による価格低下がはか
れるうえ、ガスケットによるシール長が約半減されるた
めシール信頼性が向上するなどの効果があり、軽量・安
価で信頼性が向上する。On the other hand, the cost is reduced by eliminating the machining costs for sealing the tank and the pace, and the bolt tightening work during assembly, and the seal length due to the gasket is halved, which improves seal reliability. It is lightweight, inexpensive, and has improved reliability.
以上のように本発明によれば閉磁路鉄心の脚に低圧コイ
ルと高圧コイルとを装着して々る電圧変成部を所定圧力
の絶縁ガスと共に密閉タンク内に収納したガス絶縁計器
用変圧器において、前記よ
密閉タンクはタンクと、このタンクの胴径Ｘυ小径な鏡
板と、穴全有しタンクの下部に溶接されたベースとｓ
ｍｌ記タンクの上部に気密に締結された絶縁スペーサを
有するカバーとで構成し九ので高電圧化や三相−話形化
により密閉タンクが増大化する傾向においてもより＠量
化をはかシ、シール部の信頼性向上とシール加工作業の
低減を図った安価で信頼性のおるガス絶縁計器用変圧器
を得ることができる。As described above, the present invention provides a gas-insulated instrument transformer in which a voltage transformer in which a low-voltage coil and a high-voltage coil are attached to the legs of a closed magnetic circuit iron core is housed in a sealed tank together with insulating gas at a predetermined pressure. , As mentioned above, the sealed tank consists of a tank, a head plate with a small body diameter of this tank, a base with holes all over, and welded to the bottom of the tank.
It consists of a cover with an insulating spacer that is airtightly connected to the top of the tank, so even in the trend of increasing the number of sealed tanks due to the increase in voltage and three-phase type, it is possible to achieve more quantification. It is possible to obtain an inexpensive and reliable gas-insulated instrument transformer that improves the reliability of the seal portion and reduces seal processing work.
第１図は、本発明の一実施例によるガス絶縁計器用変圧
器を示す断面図、第２図は従来のガス絶縁計器用変圧器
を示す断面図である。
１・・・鉄心、２・・・低圧コイル、３・・・高圧コイ
ル、４・・・高圧シールド、５・・・電圧変成部、８・
・・カバー、９・・・絶縁スペーサ、１０・・・絶縁ガ
ス、１１・・・密閉タンク、１１ａ・・・タンク、１１
ｂ・・・フランジ。
１１ｃ・・・ペース、１１（１・・・鏡板。
出願人代理人 弁理士 鈴 江 武 彦第１図
第２図FIG. 1 is a cross-sectional view of a gas-insulated voltage transformer according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a conventional gas-insulated voltage transformer. DESCRIPTION OF SYMBOLS 1... Iron core, 2... Low voltage coil, 3... High voltage coil, 4... High voltage shield, 5... Voltage transformation part, 8...
... Cover, 9 ... Insulating spacer, 10 ... Insulating gas, 11 ... Sealed tank, 11a ... Tank, 11
b...Flange. 11c... Pace, 11 (1... Mirror plate. Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 2
Claims (1)
てなる電圧変成部を所定圧力の絶縁ガスと共に密閉タン
ク内に収納したガス絶縁計器用変圧器において、前記密
閉タンクはタンクと、このタンクの胴径より小径な鏡板
と、穴を有しタンクの下部に溶接されたベースと、前記
タンクの上部に気密に締結された絶縁スペーサを有する
カバーとで構成したことを特徴とするガス絶縁計器用変
圧器。A gas-insulated instrument transformer in which a voltage transformer comprising a low-voltage coil and a high-voltage coil attached to the legs of a closed magnetic circuit iron core is housed in a sealed tank together with an insulating gas at a predetermined pressure, the sealed tank including a tank and this tank. A gas insulated instrument comprising: a head plate having a smaller diameter than the body diameter of the gas insulated instrument; a base having a hole and welded to the bottom of the tank; and a cover having an insulating spacer airtightly connected to the top of the tank. transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62078515A JPH0812831B2 (en) | 1987-03-31 | 1987-03-31 | Gas insulation instrument transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62078515A JPH0812831B2 (en) | 1987-03-31 | 1987-03-31 | Gas insulation instrument transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63244726A true JPS63244726A (en) | 1988-10-12 |
| JPH0812831B2 JPH0812831B2 (en) | 1996-02-07 |
Family
ID=13664071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62078515A Expired - Lifetime JPH0812831B2 (en) | 1987-03-31 | 1987-03-31 | Gas insulation instrument transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0812831B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646511A (en) * | 2012-05-23 | 2012-08-22 | 镇江天力变压器有限公司 | High-frequency testing transformer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105309A (en) * | 1982-12-07 | 1984-06-18 | Mitsubishi Electric Corp | Manufacture of stationary induction apparatus |
-
1987
- 1987-03-31 JP JP62078515A patent/JPH0812831B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105309A (en) * | 1982-12-07 | 1984-06-18 | Mitsubishi Electric Corp | Manufacture of stationary induction apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646511A (en) * | 2012-05-23 | 2012-08-22 | 镇江天力变压器有限公司 | High-frequency testing transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0812831B2 (en) | 1996-02-07 |
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