JP2000232708A - Lightning arrester - Google Patents
Lightning arresterInfo
- Publication number
- JP2000232708A JP2000232708A JP11030939A JP3093999A JP2000232708A JP 2000232708 A JP2000232708 A JP 2000232708A JP 11030939 A JP11030939 A JP 11030939A JP 3093999 A JP3093999 A JP 3093999A JP 2000232708 A JP2000232708 A JP 2000232708A
- Authority
- JP
- Japan
- Prior art keywords
- lightning arrester
- grounding
- conductor
- ground
- main circuit
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 239000012212 insulator Substances 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス絶縁開閉装置
（以下、ＧＩＳと記する。）に使用する避雷器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightning arrester used for a gas insulated switchgear (hereinafter referred to as GIS).
【０００２】[0002]
【従来の技術】図３に、ＧＩＳ内に配設され、ＧＩＳ外
部から主回路への投入あるいは遮断を実施できる断路棒
を備えた従来の避雷器の一例を示す。避雷器１は、短絡
及び地絡防止のための電界緩和を目的としたシールド２
と、内周及び外周を絶縁筒２５で支持され、主回路電圧
を保持しつつ、雷による余剰の電位を放電する抵抗素子
３と、余剰の電位を地中に放電するための密封端子４
と、主回路のコンタクト５への投入あるいは遮断を実施
するための断路棒６と、避雷器１をＧＩＳ壁面７に固定
するためのフランジ８とから構成される。2. Description of the Related Art FIG. 3 shows an example of a conventional lightning arrester provided in a GIS and provided with a disconnecting rod which can be turned on or off from a main circuit from outside the GIS. The lightning arrester 1 has a shield 2 for mitigating an electric field to prevent short-circuit and ground fault.
A resistance element 3 whose inner and outer circumferences are supported by an insulating cylinder 25 and discharges an excess potential due to lightning while maintaining a main circuit voltage; and a sealed terminal 4 for discharging the excess potential into the ground.
And a disconnecting rod 6 for connecting or disconnecting the main circuit to or from the contact 5 and a flange 8 for fixing the lightning arrester 1 to the GIS wall 7.
【０００３】一般に、ＧＩＳは、工場及び納入先での耐
電圧試験時には、主回路に多大な電圧を印加して、ＧＩ
Ｓ内に装着された個別の機器を検査するため、試験時に
は、避雷器１による放電を防止する必要がある。このた
め、避雷器１を主回路から切り離す作業が必要となる
が、避雷器１の本体をＧＩＳから取り外すと、ＧＩＳ内
部に充填されたＳＦ６ガスが外部に流出するため、ＳＦ
６ガスの事前回収と試験後のガス充填を実施する必要が
ある。したがって、避雷器１の本体に断路棒６を具備さ
せ、ＧＩＳの外部から断路棒６を操作して、主回路への
投入あるいは遮断を実施できる構造が採用される。Generally, a GIS applies a large voltage to a main circuit during a withstand voltage test at a factory and a delivery destination, and a GI is applied.
In order to inspect individual devices mounted in S, it is necessary to prevent discharge by the lightning arrester 1 during the test. For this reason, it is necessary to separate the lightning arrester 1 from the main circuit. However, when the main body of the lightning arrester 1 is removed from the GIS, the SF6 gas filled in the GIS flows out to the outside.
It is necessary to perform 6 gas pre-recovery and post-test gas filling. Therefore, a structure is adopted in which the disconnecting rod 6 is provided in the main body of the lightning arrester 1 and the disconnecting rod 6 is operated from outside the GIS to make or break the main circuit.
【０００４】なお、断路棒６は、先端部が主回路のコン
タクト５とシールド２内に備えられたコンタクト９を介
して接続する導体１０とし、中央部が抵抗素子３を経由
して放電させるための絶縁ロッド１１とし、基端部がガ
スシール用の金属ロッド１２として構成され、金属ロッ
ド１２周囲からのガス漏れを防止するため、シールボッ
クス１３を備える。The disconnecting rod 6 has a conductor 10 connected at its tip to a contact 5 of the main circuit via a contact 9 provided in the shield 2, and a central part for discharging through the resistance element 3. The base end is configured as a metal rod 12 for gas sealing, and a seal box 13 is provided to prevent gas leakage from around the metal rod 12.
【０００５】また、ＧＩＳを実地に使用する場合には、
事前に避雷器１の断路棒６を主回路のコンタクト５に投
入して運転を開始する。ＧＩＳ運転中に雷による過電圧
が主回路に発生した場合には、過電圧はコンタクト５か
ら断路棒６の導体１０、コンタクト９及びシールド２を
介して抵抗素子３に印加され、抵抗素子３によって主回
路の電圧を保持しつつ、余剰の電位を接地板１４を介し
て、密封端子４に接続された接地線１５から地中に放電
する。When GIS is used in practice,
The operation is started by putting the disconnecting rod 6 of the lightning arrester 1 in advance into the contact 5 of the main circuit. If an overvoltage due to lightning occurs in the main circuit during the GIS operation, the overvoltage is applied from the contact 5 to the resistance element 3 via the conductor 10 of the disconnecting rod 6, the contact 9 and the shield 2, and the main circuit is controlled by the resistance element 3. While maintaining the above voltage, the excess potential is discharged through the ground plate 14 from the ground wire 15 connected to the sealed terminal 4 into the ground.
【０００６】[0006]
【発明が解決しようとする課題】上述の従来の避雷器に
おいては、フランジ８に断路棒６用のガスシール部１３
及び接地線１５を接続するための密封端子４が個別に必
要となるため、これらの取付スペースを含めると、避雷
器１本体の外形に比較して、フランジ８の外径が大きく
なる。In the above-mentioned conventional lightning arrester, the gas seal portion 13 for the disconnecting rod 6 is provided on the flange 8.
In addition, since the sealed terminals 4 for connecting the ground wire 15 are separately required, the outer diameter of the flange 8 becomes larger than the outer shape of the main body of the lightning arrester 1 when these mounting spaces are included.
【０００７】また、ＧＩＳの受電及び送電は３相である
ため、ＧＩＳ内に避雷器１を３台配列した場合には、フ
ランジ８の外径に準じて、避雷器１の相間距離が広が
り、強いてはＧＩＳ本体の外形寸法が増大することにな
る。[0007] Further, since the GIS receives and transmits power in three phases, when three lightning arresters 1 are arranged in the GIS, the distance between the phases of the lightning arrester 1 is widened according to the outer diameter of the flange 8, so that the The outer dimensions of the GIS body will increase.
【０００８】そこで本発明は、断路棒の基端部を接地用
導体とすることで密封端子を排除し、しかも、避雷器用
フランジのコンパクト化を図る。Accordingly, the present invention eliminates the need for a sealed terminal by using a grounding conductor at the base end of the disconnecting rod, and furthermore makes the flange of the lightning arrester compact.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に本発明では、ガス絶縁開閉装置の壁面の内部側に収納
され、先端部が主回路に接離する断路棒と、この断路棒
の外周部に配設された抵抗素子と、この抵抗素子の下端
部に接続された接地板とを備え、前記断路棒を前記壁面
の外部側から操作して前記主回路への投入あるいは遮断
を行う避雷器において、前記断路棒の基端部を接地用導
体で形成するとともに、この接地用導体を接地用コンタ
クトを介して前記接地板に接続し、前記接地用導体に接
地線を接続し、前記壁面の外部側に貫通碍子を配設する
とともに、この貫通碍子によって前記接地用導体を摺動
可能に支持し、前記断路棒の投入状態では、前記抵抗素
子を前記接地板、前記接地用コンタクト、前記接地用導
体及び前記接地線を介して接地するようにする。In order to achieve the above object, according to the present invention, there is provided a disconnecting rod housed inside a wall of a gas insulated switchgear, the distal end of which is connected to and separated from a main circuit; A resistive element disposed on an outer peripheral portion thereof; and a ground plate connected to a lower end portion of the resistive element. The disconnecting rod is operated from the outside of the wall surface to switch on or off the main circuit. In the lightning arrester, a base end of the disconnecting rod is formed of a grounding conductor, the grounding conductor is connected to the grounding plate via a grounding contact, a grounding wire is connected to the grounding conductor, and A penetrating insulator is provided on the outside of the grounding member, and the grounding conductor is slidably supported by the penetrating insulator. In a state where the disconnecting rod is closed, the resistance element is connected to the grounding plate, the grounding contact, and the grounding contact. Grounding conductor and said grounding wire Through and to be grounded.
【００１０】上記本発明による避雷器においては、主回
路投入時に断路棒が接地端子としての機能をはたすた
め、密封端子を排除することが可能となる。In the lightning arrester according to the present invention, since the disconnecting rod functions as a ground terminal when the main circuit is turned on, it is possible to eliminate the sealed terminal.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態の一例
を、図１および図２を用いて説明する。図１において、
避雷器３１は、シールド２と、内周及び外周を絶縁筒２
５で支持された抵抗素子３と、接地用コンタクト１６を
備えた接地板３４と、主回路のコンタクト５に接続する
ための導体１０、絶縁ロッド１１及び接地用導体１７か
ら成る断路棒３６と、断路棒３６の接地用導体１７をＧ
ＩＳ外部に引き出すための貫通碍子１８とから構成さ
れ、下部には避雷器３１をＧＩＳの壁面７に固定するた
めのフランジ３８を備える。なお、外部に引き出された
接地用導体１７の末端１９は接地端子として接地線１５
に接続される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG.
The lightning arrester 31 includes a shield 2 and an insulating cylinder 2 on the inner and outer circumferences.
5, a grounding plate 34 provided with a grounding contact 16, a conductor 10 for connecting to the contact 5 of the main circuit, an insulating rod 11, and a grounding conductor 17; Connect the grounding conductor 17 of the disconnecting rod 36 to G
A penetrating insulator 18 is drawn out of the IS, and a lower portion is provided with a flange 38 for fixing the lightning arrester 31 to the wall surface 7 of the GIS. In addition, the terminal 19 of the grounding conductor 17 drawn out is connected to the grounding line 15 as a grounding terminal.
Connected to.
【００１２】貫通碍子１８は、図２に示すように、放電
時における余剰電位がＧＩＳ本体に印加されないよう
に、例えばモールド樹脂等の絶縁物２１を使用し、ま
た、中心部には断路棒３６の接地用導体１７が摺動可能
に挿入され、ＧＩＳの気密を保持するためのパッキング
２２を備えた貫通導体２３から構成される。As shown in FIG. 2, the insulator 18 is made of an insulator 21 such as a molding resin so that an excess potential is not applied to the GIS main body at the time of discharge. The grounding conductor 17 is slidably inserted, and is constituted by a through conductor 23 provided with a packing 22 for keeping the GIS airtight.
【００１３】なお、ＧＩＳ運転時に主回路コンタクト５
に投入された断路棒３６が振動や地震等による抜けを防
止するため、断路棒３６の接地用導体１７の末端１９
は、キャップ２４を用いて固定する。In the GIS operation, the main circuit contact 5
In order to prevent the disconnecting rod 36 inserted into the connecting rod 36 from coming off due to vibration, earthquake, or the like, the distal end 19 of the grounding conductor 17 of the disconnecting rod 36
Is fixed using a cap 24.
【００１４】上記本発明の避雷器３１は、工場及び納入
先での耐電圧試験時には、接地線１５を取り外し、ＧＩ
Ｓ外部に突出した断路棒３６の接地用導体１７の末端１
９を引き出すことで、断路棒３６の導体１０がコンタク
ト５から離脱し、ＧＩＳ内部に充填されたＳＦ６ガスを
放出することなく、主回路から切り離すことができる。In the lightning arrester 31 of the present invention, the ground wire 15 is removed during the withstand voltage test at the factory and at the delivery destination.
S End 1 of grounding conductor 17 of disconnecting rod 36 protruding outside
By pulling out 9, the conductor 10 of the disconnecting rod 36 is detached from the contact 5 and can be disconnected from the main circuit without releasing SF6 gas filled in the GIS.
【００１５】また、ＧＩＳ運転時において、雷により主
回路に過電圧が発生し、コンタクト５を介して避雷器３
１に印加された場合には、余剰の電位は断路棒３６の導
体１０からコンタクト９及びシールド２を介して抵抗素
子３に供給され、抵抗素子３は主回路電圧を保持しつ
つ、余剰の電位を接地板３４、接地用コンタクト１６及
び断路棒３６の接地用導体１７を介して接地線１５から
地中に放電される。During GIS operation, an overvoltage occurs in the main circuit due to lightning, and the surge arrester 3
1, the excess potential is supplied from the conductor 10 of the disconnecting rod 36 to the resistance element 3 via the contact 9 and the shield 2, and the resistance element 3 holds the main circuit voltage while maintaining the excess potential. Is discharged into the ground from the ground wire 15 via the ground plate 34, the ground contact 16 and the ground conductor 17 of the disconnecting rod 36.
【００１６】[0016]
【発明の効果】以上、説明したように、本発明の避雷器
においては、従来方式による接地専用の密封端子が不要
となるため、避雷器のフランジ外形をコンパクト化でき
る。したがって、避雷器３相分をＧＩＳ内に配列した場
合、相間距離を電界が許容される範囲で最小限に抑える
ことができるため、ＧＩＳ本体のコンパクト化を実現で
きる。As described above, in the lightning arrester of the present invention, the conventional sealing terminal dedicated to grounding is not required, so that the outer shape of the flange of the lightning arrester can be made compact. Therefore, when the three phases of the lightning arrester are arranged in the GIS, the distance between the phases can be minimized within a range where the electric field is allowed, so that the GIS body can be made compact.
【００１７】また、フランジ表面の気密部が１箇所に集
約できるため、ガス漏れに対して装置の信頼性が向上す
るとともに、部品数の削減によるコストダウン効果も期
待できる。Further, since the hermetic portion on the flange surface can be concentrated at one place, the reliability of the device against gas leakage is improved, and a cost reduction effect by reducing the number of parts can be expected.
【図１】本発明の避雷器の実施の形態の一例を示す図で
ある。FIG. 1 is a diagram showing an example of an embodiment of a lightning arrester of the present invention.
【図２】その貫通碍子の構造を示す図である。FIG. 2 is a view showing the structure of the penetrating insulator.
【図３】従来の避雷器の一例を示す図である。FIG. 3 is a diagram illustrating an example of a conventional lightning arrester.
２ シールド ３ 抵抗素子 ９ コンタクト １０導体 １１絶縁ロッド １５接地線 １６接地用コンタクト １７接地用導体 １８貫通碍子 ３１避雷器 ３４接地板 ３６断路棒 ３８フランジ 2 Shield 3 Resistance element 9 Contact 10 Conductor 11 Insulating rod 15 Ground wire 16 Ground contact 17 Ground conductor 18 Penetration insulator 31 Lightning arrester 34 Ground plate 36 Disconnect rod 38 Flange
Claims (1)
れ、先端部が主回路に接離する断路棒と、この断路棒の
外周部に配設された抵抗素子と、この抵抗素子の下端部
に接続された接地板とを備え、前記断路棒を前記壁面の
外部側から操作して前記主回路への投入あるいは遮断を
行う避雷器において、 前記断路棒の基端部を接地用導体で形成するとともに、
この接地用導体を接地用コンタクトを介して前記接地板
に接続し、 前記接地用導体に接地線を接続し、 前記壁面の外部側に貫通碍子を配設するとともに、この
貫通碍子によって前記接地用導体を摺動可能に支持し、 前記断路棒の投入状態では、前記抵抗素子を前記接地
板、前記接地用コンタクト、前記接地用導体及び前記接
地線を介して接地するようにした、 ことを特徴とする避雷器。1. A disconnecting rod housed inside a wall of a gas insulated switchgear and having a distal end connected to and separated from a main circuit, a resistive element disposed on an outer peripheral portion of the disconnecting rod, A grounding plate connected to a lower end of the lightning arrester, which operates the disconnecting rod from the outside of the wall surface to switch on or off the main circuit, wherein the base end of the disconnecting rod is a grounding conductor. While forming
The grounding conductor is connected to the grounding plate via a grounding contact, a grounding wire is connected to the grounding conductor, and a penetrating insulator is provided outside the wall surface. A conductor is slidably supported, and the resistance element is grounded via the grounding plate, the grounding contact, the grounding conductor, and the grounding wire when the disconnecting rod is turned on. And lightning arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11030939A JP2000232708A (en) | 1999-02-09 | 1999-02-09 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11030939A JP2000232708A (en) | 1999-02-09 | 1999-02-09 | Lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000232708A true JP2000232708A (en) | 2000-08-22 |
Family
ID=12317658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11030939A Pending JP2000232708A (en) | 1999-02-09 | 1999-02-09 | Lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000232708A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401269B (en) * | 2006-03-08 | 2011-08-03 | 日本Ae帕瓦株式会社 | Arrester |
| CN105680325A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Novel optimized lightning rod |
| CN105680324A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Enhanced optimized lightning rod |
| WO2022073722A1 (en) * | 2020-10-07 | 2022-04-14 | Siemens Energy Global GmbH & Co. KG | Conductor assembly |
| WO2023021033A1 (en) * | 2021-08-16 | 2023-02-23 | Siemens Energy Global GmbH & Co. KG | Lightning arrester |
-
1999
- 1999-02-09 JP JP11030939A patent/JP2000232708A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401269B (en) * | 2006-03-08 | 2011-08-03 | 日本Ae帕瓦株式会社 | Arrester |
| CN105680325A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Novel optimized lightning rod |
| CN105680324A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Enhanced optimized lightning rod |
| WO2022073722A1 (en) * | 2020-10-07 | 2022-04-14 | Siemens Energy Global GmbH & Co. KG | Conductor assembly |
| WO2023021033A1 (en) * | 2021-08-16 | 2023-02-23 | Siemens Energy Global GmbH & Co. KG | Lightning arrester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2496203C2 (en) | Unit with overvoltage protection, and overvoltage test method | |
| TWI627650B (en) | Switching device and fuse unit | |
| US9893515B2 (en) | Power switchgear having surge suppression apparatus | |
| BRPI0415386B1 (en) | vacuum switch and method for mitigating electric field distortion within a protected encapsulated vacuum switch | |
| JP5414754B2 (en) | Plug-in bushing and withstand voltage test method | |
| JP2000232708A (en) | Lightning arrester | |
| US4782423A (en) | Lightning arrester | |
| JP3623333B2 (en) | Substation equipment | |
| JP5555365B2 (en) | Plug-in bushing and withstand voltage test method | |
| JP4477463B2 (en) | Withstand voltage test method for sealed electrical equipment | |
| JP4550750B2 (en) | Arresta | |
| JP2016208809A (en) | Switch gear | |
| KR19980070855A (en) | Mounting structure of tank type lightning arrester for neutral point of transformer | |
| JP4460431B2 (en) | Arresta | |
| RU180980U1 (en) | HIGH VOLTAGE FUSE UNIT DEVICE | |
| JP3750320B2 (en) | Gas insulation apparatus and withstand voltage test method thereof | |
| JP2612291B2 (en) | Ground switch for gas insulated switchgear | |
| JPS5811726B2 (en) | Lightning arrester | |
| JP2536839Y2 (en) | Switch with built-in lightning arrester | |
| JP2007158041A (en) | Arrester | |
| JPH0117832Y2 (en) | ||
| RU106985U1 (en) | HIGH VOLTAGE GAS CIRCUIT BREAKER | |
| JP2534804Y2 (en) | Switch with built-in lightning arrester | |
| JPS6261220A (en) | Gas breaker with arrestor | |
| CN108878083A (en) | Cable sheath protective device and installation method |