JPS63100703A - Arrestor for converting station - Google Patents
Arrestor for converting stationInfo
- Publication number
- JPS63100703A JPS63100703A JP24548586A JP24548586A JPS63100703A JP S63100703 A JPS63100703 A JP S63100703A JP 24548586 A JP24548586 A JP 24548586A JP 24548586 A JP24548586 A JP 24548586A JP S63100703 A JPS63100703 A JP S63100703A
- Authority
- JP
- Japan
- Prior art keywords
- lightning arrester
- converter station
- insulating frame
- station
- insulator
- 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
Landscapes
- Thermistors And Varistors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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、主に極性反転等がある変換所用避雷器に係り
、特に、酸化亜鉛素子を使用したサイリスタバルブ保護
用避雷器等の様に、絶縁架台等の上部に配設された変換
所用避雷器に関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention mainly relates to lightning arresters for converter stations that have polarity reversal, etc., and in particular, lightning arresters for protecting thyristor valves using zinc oxide elements. This relates to a lightning arrester for a converter station, which is installed on the top of an insulating frame or the like.
（従来の技術）
従来から交直変換所に用いられる避雷器としては、例え
ば、交直変換器を構成するサイリスタバルブの上部アー
ム側を保護するためのバルブ保護用Ａ−に間避雷器等の
様に、絶縁架台上に配設された避雷器が知られている。(Prior art) As a lightning arrester conventionally used in an AC/DC converter station, for example, a lightning arrester for protecting the upper arm of a thyristor valve constituting an AC/DC converter is used. A lightning arrester arranged on a frame is known.
第４図に従来から用いられている変換所用避雷器の構成
を示した。即ち、第４図（Ａ）に示した様に、架溝２等
の上に、サイリスタバルブの下部アーム側に相当する分
の所要高さＨを有する絶縁架台１が配設されている。一
方、上部に線路端子３ａ、下部に線路端子３ｂを有する
変換所用避雷器４がベース５を介して前記絶縁架台１上
に配設されている。Figure 4 shows the configuration of a conventional lightning arrester for converter stations. That is, as shown in FIG. 4(A), an insulating frame 1 having a required height H corresponding to the lower arm side of the thyristor valve is disposed above the bridge groove 2 and the like. On the other hand, a lightning arrester 4 for a converter station having a line terminal 3a at an upper part and a line terminal 3b at a lower part is arranged on the insulating frame 1 via a base 5.
また、第４図（Ｂ）に示した様に、変換所用避雷器４の
線路端子３ｂの近傍に、放電カウンター、付磁コイル、
Ｉｆｌ鋼片等の避雷器の付属機器６が配設されている。In addition, as shown in FIG. 4(B), a discharge counter, a magnetizing coil,
A lightning arrester accessory 6 such as an Ifl steel piece is provided.
ざらに、第４図に示した様な絶縁架台１は、一本の碍子
から構成され、その上部に配設される変換所用避雷器４
を支持するために、変換所用避雷器４より笠径の大きい
中空碍子から構成されている。Roughly speaking, the insulating pedestal 1 as shown in FIG.
In order to support the converter station lightning arrester 4, it is constructed of a hollow insulator with a larger diameter than the lightning arrester 4.
しかしながら、この様な構成を有する従来の変換所用避
雷器においては、以下に述べる様な問題点があった。However, the conventional lightning arrester for a converter station having such a configuration has the following problems.
即ら、極性反転によって、変換所用避雷器４の下部にあ
る線路端子３ｂ側が高圧部となった場合、第４図（Ｂ）
に示した様に、線路端子３ｂの近傍には、各種の変換所
用避雷器の付属機器６が配設されているので、この周辺
において、電位分布の乱れを生じ、コロナが発生しやす
くなる。そして、コロナが発生すると、変換所用避雷器
４の電位分布にも乱れを生じ、また、変換所用避雷器の
付属機器６、特に放電カウンターの誤動作等が生じ、変
換所用避雷器の信頼性が著しく低下していた。In other words, if the line terminal 3b side at the bottom of the converter station lightning arrester 4 becomes a high voltage part due to polarity reversal, as shown in FIG. 4(B).
As shown in FIG. 2, since various types of converter station lightning arrester accessory equipment 6 are arranged in the vicinity of the line terminal 3b, potential distribution is disturbed in this vicinity, and corona is likely to occur. When corona occurs, the potential distribution of the converter station lightning arrester 4 is disturbed, and the attached equipment 6 of the converter station lightning arrester, especially the discharge counter, malfunctions, resulting in a significant decrease in the reliability of the converter station lightning arrester. Ta.
また、変換所用避雷器４を支持する絶縁架台１が中空碍
子より構成されているため、長年に渡って、変換所用避
雷器の機械的荷重がかかると、碍子に歪みや破損が生じ
る。また、温度差等の環境条件によって、中空碍子のセ
メンジング部に凍結等による膨張ストレスがかかり、碍
子に歪みや破損が生じることがあった。すると、それら
の破損部分から中空碍子の内部に水分が侵入し、吸湿等
を起こし、中空碍子内部で電気的閃絡を起こす。Further, since the insulating frame 1 that supports the conversion station lightning arrester 4 is made of a hollow insulator, the insulator will be distorted or damaged if the mechanical load of the conversion station lightning arrester is applied over many years. Furthermore, due to environmental conditions such as temperature differences, expansion stress due to freezing or the like is applied to the cemented portion of the hollow insulator, which may cause distortion or damage to the insulator. Then, moisture enters the inside of the hollow insulator through these damaged parts, causing moisture absorption, etc., and causing electrical flashing inside the hollow insulator.
その結果、絶縁架台１と併設されている下部アーム側の
サイリスタバルブにおいても閃絡が生じ、変換所の運転
を停止しなければならなかった。As a result, a flashover also occurred in the thyristor valve on the lower arm side, which is attached to the insulating frame 1, and the operation of the converter station had to be stopped.
（発明が解決しようとする問題点）
上記の様に、従来の変換所用避雷器においては、極性反
転が生じた場合、絶縁架台のベース部周辺にコロナが発
生し、変換所用避雷器の電位分布に乱れを生じ、変換所
用避雷器の付属機器の誤動作を引き起こしていた。(Problems to be Solved by the Invention) As described above, in the conventional lightning arrester for a converter station, when polarity reversal occurs, corona is generated around the base of the insulating stand, which disturbs the potential distribution of the lightning arrester for the converter station. This caused malfunction of the equipment attached to the lightning arrester for the converter station.
また、絶縁架台を構成する中空碍子に歪みや破損が生じ
易く、絶縁架台内部において電気的閃絡が生じ、下部ア
ーム側のサイリスタバルブにおいても閃絡が生じ、変換
所の運転を停止しなければならなかった。In addition, the hollow insulators that make up the insulating frame are easily distorted and damaged, causing electrical flashovers inside the insulating frame and flashovers also occurring in the thyristor valves on the lower arm side, making it necessary to stop operation of the converter station. did not become.
そこで、本発明は以上の欠点を除去するために提案され
たもので、その目的は、極性反転が起こっても絶縁架台
のベース部においてコロナが発生せず、また、サイリス
タバルブの下部アーム側に閃絡が生じない信頼性の高い
変換所用避雷器を提供することにある。Therefore, the present invention was proposed in order to eliminate the above-mentioned drawbacks, and its purpose is to prevent corona from occurring at the base of the insulating stand even if polarity reversal occurs, and to prevent corona from occurring on the lower arm side of the thyristor valve. An object of the present invention is to provide a highly reliable lightning arrester for a converter station that does not cause flash faults.
［発明の構成］
（問題点を解決するための手段）
本発明の変換所用避雷器は、絶縁架台上に配設されたベ
ース上に放電カウンター、付磁コイル等の避雷器の付属
機器及び端子類を配置し、その周囲を取り囲むようにシ
ールドリングを配設し、また、絶縁架台を中実碍子を用
いて構成したものである。[Structure of the Invention] (Means for Solving the Problems) The lightning arrester for a converter station of the present invention includes a discharge counter, a magnetizing coil, and other accessories of the lightning arrester and terminals on a base arranged on an insulating frame. A shield ring is arranged to surround the shield ring, and an insulating frame is constructed using a solid insulator.
（作用）
本発明の変換所用避雷器は、変換所用避雷器と絶縁架台
の間に配設されるベースの周囲にシールドリングが配設
されているので、極性反転が起こっても、避雷器の付属
機器及び端子類が配設されているベース部分にコロナが
発生することを防止できる。(Function) The lightning arrester for a conversion station of the present invention has a shield ring around the base that is installed between the lightning arrester for a conversion station and the insulating frame, so even if polarity reversal occurs, the lightning arrester for the lightning arrester and the attached equipment and It is possible to prevent corona from forming on the base portion where the terminals are arranged.
また、絶縁架台を複数本の中実碍子を適宜ｖｉ層したり
、適宜並列に配置して構成することにより、絶縁架台の
機械的強度及び電気的強度を高め、絶縁架台内部におけ
る閃絡を防止したものである。In addition, by configuring the insulating frame by appropriately layering multiple solid insulators or arranging them in parallel as appropriate, the mechanical and electrical strength of the insulating frame can be increased and flash shorts inside the insulating frame can be prevented. This is what I did.
（実施例）
以下、本発明の一実施例を第１図乃至第３図に基づいて
具体的に説明する。なお、第４図に示した従来型と同一
の部材は同一の符号を付し説明は省略する。(Example) Hereinafter, an example of the present invention will be specifically described based on FIGS. 1 to 3. Incidentally, the same members as those of the conventional type shown in FIG. 4 are given the same reference numerals, and explanations thereof will be omitted.
＊実施例の構成＊
本実施例においては、第１図に示した様に、所要高さＨ
を有する絶縁架台１０の上部に、上部に線路端子３ａ、
下部に線路端子３ｂを有する変換所用避雷器４がベース
５を介して配設されている。*Configuration of Example* In this example, as shown in Fig. 1, the required height H
On the upper part of the insulating frame 10 having a line terminal 3a,
A lightning arrester 4 for a converter station having a line terminal 3b at the bottom is disposed via a base 5.
また、第２図及び第３図に示した様に、ベース５の上側
には、変換所用避雷器の線路端子３ｂの周辺に、変換所
用避雷器の付属機器である放電カウンター１１、付磁コ
イル１２等が配設され、線路端子３Ｃから他の機器、例
えばサイリスタバルブ保護用Ａ−に間避雷器では、サイ
リスタバルブ側へ結線されるように構成されている。そ
して、ベース５上に配設された変換所用避雷器の付属機
器を取囲むように、シールドリンク１３が配設されてい
る。As shown in FIGS. 2 and 3, on the upper side of the base 5, around the line terminal 3b of the lightning arrester for a conversion station, a discharge counter 11, a magnetic coil 12, etc., which are accessories of the lightning arrester for a conversion station, etc. is arranged, and the line terminal 3C is configured to be connected to other equipment, such as a lightning arrester for protecting a thyristor valve, to the thyristor valve side. A shield link 13 is disposed so as to surround the accessory equipment of the lightning arrester for a converter station disposed on the base 5.
さらに、絶縁架台１０は、第１図に示した様に、複数本
の等径の小さい中実碍子から構成されている。即ち、そ
の上部に配設される変換所用避雷器４の荷重を十分に支
持することができる様に、複数個の碍子１０ａ、１０ｂ
、１０ｃが適宜並列に配置され、また、所要の高さＨと
なるように適宜＠層され、その上部にベース５を介して
変換所用避雷器４が配設されている。Further, as shown in FIG. 1, the insulating frame 10 is composed of a plurality of small solid insulators having the same diameter. That is, a plurality of insulators 10a, 10b are installed so as to be able to sufficiently support the load of the converter station lightning arrester 4 disposed above it.
, 10c are arranged in parallel as appropriate, and layered as appropriate so as to have a required height H, and a lightning arrester 4 for a converter station is disposed on top thereof via a base 5.
本実施例の作用＊
上記の様な構成を有する本実施例においては、極性反転
が起こり、変換所用避雷器４の下部線路端子３ｂが高圧
側となっても、ベース５上に配設された変換所用避雷器
の付属別器１１．１２や線路端子３ｂ、３ｃ等を取り囲
むようにシールドリンク１３が配設されているので、ベ
ース５上におけるコロナの発生を防止することができる
。その結果、変換所用避Ｎ器の電位分イ「の乱れや、避
雷器の付属機器１１．１２等の誤動作、また、周囲の機
器への電波障害等を防止することかできる。Effects of this embodiment Since the shield link 13 is arranged so as to surround the lightning arrester accessories 11, 12, line terminals 3b, 3c, etc., it is possible to prevent corona from occurring on the base 5. As a result, it is possible to prevent disturbances in the potential of the converter station N protector, malfunctions of the lightning arrester accessories 11, 12, etc., and radio wave interference to surrounding devices.
また、絶縁架台１０が複数本の等径の小さい中実碍子を
並列に配置したり、積層して構成されているので、変換
所用避雷器の荷重による機械的ストレスにも十分に耐え
ることができ、また、耐震性にも優れている。ざらに、
中実碍子を用いているので、碍子が破損してその内部に
水分が侵入するということもなく、絶縁架台内部で電気
的閃絡を起こすことを防止できる。また、絶縁架台内部
における閃絡を防止できるので、下部アーム側のサイリ
スタバルブにおける閃絡も防止することができ、変換所
を停止させるといった大きな事故を防止することができ
る。In addition, since the insulating frame 10 is constructed by arranging a plurality of small solid insulators of equal diameter in parallel or stacking them, it can sufficiently withstand mechanical stress due to the load of the lightning arrester for the conversion station. It also has excellent earthquake resistance. Roughly,
Since a solid insulator is used, the insulator will not be damaged and moisture will not infiltrate into the insulator, and it is possible to prevent electrical flash from occurring inside the insulating frame. Further, since flash faults can be prevented inside the insulating frame, flash faults in the thyristor valve on the lower arm side can also be prevented, and major accidents such as stopping the conversion station can be prevented.
＊他の実施例＊
本発明は上述の実施例に限定されるものではなく、絶縁
架台を構成する中実碍子は、絶縁架台の所要高さに応じ
て適宜段数積層し、また、変換所用避雷器の荷重に応じ
て適宜個数を並列に配置してよい。*Other Examples* The present invention is not limited to the above-mentioned embodiments, and the solid insulators constituting the insulating pedestal are laminated in an appropriate number of stages depending on the required height of the insulating pedestal. An appropriate number may be arranged in parallel depending on the load.
また、絶縁架台を一本の碍子から構成する場合は、その
碍子等径は複数個の碍子を並列に配置して用いる場合の
碍子の等径に比べて大ぎくなるが、碍子は中実であるの
で、変換所用避雷器の荷重によって碍子に歪みや破損を
生じることはない。なお、この場合、碍子等径は上部に
配設される変換所用避雷器の荷重を十分に支えられるも
のとする。Furthermore, when the insulating frame is constructed from a single insulator, the diameter of the insulator is larger than the diameter of the insulator when multiple insulators are arranged in parallel, but the insulator is solid. Therefore, the insulator will not be distorted or damaged by the load of the lightning arrester for the conversion station. In this case, the diameter of the insulator shall be sufficient to support the load of the lightning arrester for the converter station installed above.
［発明の効果］
以上述べた様に、本発明によれば、絶縁架台と変換所用
避雷器の接合部に配設されるベース部に、変換所用避雷
器のＮ属機器を配置し、その周囲をシールドリングで取
り囲み、また、絶縁碍子を等径及び高ざの小さい中実碍
子を複数個組合せて構成するという簡単な手段によって
、極性反転が起こっても絶縁架台のベース部においてコ
ロナが発生せず、また、サイリスタバルブの下部アーム
側に閃絡が生じない信頼性の高い変換所用避雷器を提供
することができる。[Effects of the Invention] As described above, according to the present invention, the N class equipment of the lightning arrester for a conversion station is arranged at the base part arranged at the joint between the insulating frame and the lightning arrester for the conversion station, and the surrounding area is shielded. By simply surrounding the insulator with a ring and configuring the insulator by combining multiple solid insulators with the same diameter and small height, corona will not be generated at the base of the insulating frame even if polarity reversal occurs. Furthermore, it is possible to provide a highly reliable lightning arrester for a conversion station that does not cause flash flash on the lower arm side of the thyristor valve.
第１図（Ａ＞及び（Ｂ）は本発明の変換所用避雷器の一
実施例を示す側面図及びベース部の平面図、第２図は、
本発明によるベース部上面を示す平面図、第３図は、第
２図の要部拡大図、第４図（Ａ＞及び（Ｂ）は、それぞ
れ従来の変換所用避雷器の構成を示す側面図である。
１・・・絶縁架台、２・・・架構、３ａ、３ｂ、３ｃ・
・・線路端子、４・・・変換所用避雷器、５・・・ベー
ス、６・・・避雷器付属機器、１０・・・絶縁゛架台、
１１・・・放電カウンター、１２・・・付磁コイル、１
３・・・シールドリング。
第 １ 図
第２図 ｊｓ３０
第 ４’ｒ２Ｊ
（Ｆ３）Fig. 1 (A> and (B)) is a side view and a plan view of the base part showing one embodiment of the lightning arrester for a converter station of the present invention, and Fig. 2 is a
FIG. 3 is a plan view showing the top surface of the base part according to the present invention, FIG. 3 is an enlarged view of the main part of FIG. 2, and FIGS. Yes. 1... Insulated frame, 2... Frame, 3a, 3b, 3c.
...Line terminal, 4...Surge arrester for conversion station, 5...Base, 6...Surge arrester accessory equipment, 10...Insulation stand,
11...Discharge counter, 12...Magnetized coil, 1
3... Shield ring. Fig. 1 Fig. 2 js30 No. 4'r2J (F3)
Claims (4)
ースを介して配設されている変換所用避雷器において、 前記ベース上に放電カウンター、付磁コイル等の避雷器
の付属機器及び端子類が配置され、その周囲を取り囲む
ようにシールドリングが配設されていることを特徴とす
る変換所用避雷器。(1) In a lightning arrester for a converter station that has line terminals on the upper and lower parts and is installed on an insulating frame via a base, accessories of the lightning arrester such as a discharge counter and a magnetizing coil and terminals are placed on the base. A lightning arrester for a conversion station, characterized in that a shield ring is arranged to surround the lightning arrester.
のである特許請求の範囲第１項記載の変換所用避雷器。(2) The lightning arrester for a converter station according to claim 1, wherein the insulating frame is constructed using a solid insulator.
配置できるように、複数個の中実碍子を適宜積層して構
成されたものである特許請求の範囲第１項記載の変換所
用避雷器。(3) The converter station according to claim 1, wherein the insulating frame is constructed by appropriately laminating a plurality of solid insulators so that the lightning arrester for the converter station can be arranged at a required height. Lightning arrester.
支えることができるように、複数個の中実碍子を適宜並
列に配置して構成されたものである特許請求の範囲第１
項記載の変換所用避雷器。(4) The insulating frame is constructed by appropriately arranging a plurality of solid insulators in parallel so that the load of the lightning arrester for a conversion station can be evenly supported.
Surge arrester for converter station as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24548586A JPS63100703A (en) | 1986-10-17 | 1986-10-17 | Arrestor for converting station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24548586A JPS63100703A (en) | 1986-10-17 | 1986-10-17 | Arrestor for converting station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63100703A true JPS63100703A (en) | 1988-05-02 |
| JPH0531802B2 JPH0531802B2 (en) | 1993-05-13 |
Family
ID=17134360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24548586A Granted JPS63100703A (en) | 1986-10-17 | 1986-10-17 | Arrestor for converting station |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63100703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812010A (en) * | 2014-03-12 | 2014-05-21 | 陈勃闻 | Two-stage series gap lightning flashover protector with discharge counter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721085A (en) * | 1980-07-14 | 1982-02-03 | Hitachi Ltd | Tank type arrester |
-
1986
- 1986-10-17 JP JP24548586A patent/JPS63100703A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721085A (en) * | 1980-07-14 | 1982-02-03 | Hitachi Ltd | Tank type arrester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812010A (en) * | 2014-03-12 | 2014-05-21 | 陈勃闻 | Two-stage series gap lightning flashover protector with discharge counter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531802B2 (en) | 1993-05-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |