JPH053612A - Compressed gas insulation switchgear - Google Patents
Compressed gas insulation switchgearInfo
- Publication number
- JPH053612A JPH053612A JP3266420A JP26642091A JPH053612A JP H053612 A JPH053612 A JP H053612A JP 3266420 A JP3266420 A JP 3266420A JP 26642091 A JP26642091 A JP 26642091A JP H053612 A JPH053612 A JP H053612A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- movable
- fixed
- main circuit
- tank
- 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
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- Gas-Insulated Switchgears (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス絶縁開閉装置に係
り、特に構成機器を主回路から切離す切離装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-insulated switchgear, and more particularly to a disconnecting device for disconnecting component equipment from a main circuit.
【０００２】[0002]
【従来の技術】通常、ガス絶縁開閉装置は、製作工場に
おいてユニットごとに受入試験が行われ、現地に据付後
最終的な絶縁性能を確認するために耐電圧試験が行われ
る。しかしながら、ガス絶縁開閉装置には、避雷器や電
圧変成器のように定格電圧以上の高い電圧を印加できな
い機器があるため、現地における耐電圧試験時には、主
回路から切離装置によって切離すことが必要であった。2. Description of the Related Art Normally, a gas-insulated switchgear is subjected to an acceptance test for each unit at a manufacturing plant, and a withstand voltage test is performed after the installation to confirm the final insulation performance. However, some gas-insulated switchgear devices, such as lightning arresters and voltage transformers, cannot apply a voltage higher than the rated voltage, so it is necessary to disconnect them from the main circuit by a disconnecting device during the on-site withstand voltage test. Met.
【０００３】図11は、変圧器回線の単線結線図を示し、
１は変圧器、２は避雷器、３は接地開閉器、４は遮断
器、５は断路器、６は接地開閉器、７は主母線である。
また、図12は、図11に相当する部分のガス絶縁開閉装置
の正面図を示す。同図に示すように避雷器２は、Ｔ形管
路８と切離装置９を介して接続されている。FIG. 11 shows a single wire connection diagram of a transformer line,
1 is a transformer, 2 is a lightning arrester, 3 is a grounding switch, 4 is a circuit breaker, 5 is a disconnecting switch, 6 is a grounding switch, and 7 is a main bus.
Further, FIG. 12 shows a front view of a portion of the gas insulated switchgear corresponding to FIG. As shown in the figure, the arrester 2 is connected to the T-shaped conduit 8 via a disconnecting device 9.
【０００４】この切離装置９は、図13および図14に示す
ようにタンク10の両端に対向して取付けた絶縁スペーサ
11ａ，11ｂに固定されている導体12ａ，12ｂに、接触部
13ａ，13ｂを介して導体14ａ，14ｂが取付けられ、この
導体14ａ，14ｂ間に着脱導体15が挿入され、ボルト16を
介して固定されている。この着脱導体15は、上部を開口
し両端を閉塞した円筒状導体15ａと、この円筒状導体15
ａの上部の開口部を蔽うようにボルト17で固定される円
弧状導体15ｂで構成されている。This separating device 9 is an insulating spacer attached to both ends of the tank 10 as shown in FIGS. 13 and 14.
Contact parts to the conductors 12a and 12b fixed to 11a and 11b
Conductors 14a and 14b are attached via 13a and 13b, and a detachable conductor 15 is inserted between the conductors 14a and 14b and fixed via bolts 16. The detachable conductor 15 includes a cylindrical conductor 15a having an open top and closed at both ends, and the cylindrical conductor 15a.
It is composed of an arc-shaped conductor 15b fixed by a bolt 17 so as to cover the opening at the top of a.
【０００５】現地における耐電圧試験で避雷器２を切離
す場合には、まず、切離装置９内のＳＦ6 ガスを排出後
大気に置換し、マンホール18よりボルト16，17を外して
着脱導体15を外部に取出す。その後、切離装置９内の大
気を再度ＳＦ6 ガスに置換することにより、避雷器２を
主回路から切離す。また、耐電圧試験終了後避雷器２を
主回路に接続する場合には、上記と逆の手順で行う。In the case of disconnecting the lightning arrester 2 in the on-site withstand voltage test, first, the SF 6 gas in the disconnecting device 9 is discharged and then replaced with the atmosphere, the bolts 16 and 17 are removed from the manhole 18, and the detachable conductor 15 is attached. To the outside. Then, the atmosphere in the disconnecting device 9 is replaced with SF 6 gas again to disconnect the lightning arrester 2 from the main circuit. Further, when the lightning arrester 2 is connected to the main circuit after completion of the withstand voltage test, the procedure is the reverse of the above.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記し
た従来の構成では、現地における耐電圧試験を行う場
合、避雷器２を主回路から切離したり接続するため、分
解再組立を必要とし２回ガス処理を行わなければならな
い。製作工場で厳しい管理下で組立てられた製品を現地
で分解することは、品質の低下を招くばかりでなく、作
業時間も１回の分解およびガス処理に数時間を必要とし
ていた。また、切離装置９を取付けるため、ガス絶縁開
閉装置全体の外形寸法が大きくなる場合もあった。However, in the above-mentioned conventional configuration, when performing a withstand voltage test on site, the lightning arrester 2 is disconnected or connected from the main circuit, and therefore, disassembly and reassembly are required, and gas treatment is performed twice. It must be made. The on-site disassembly of products assembled under strict control in the manufacturing factory not only deteriorates the quality, but also requires a working time of several hours for one disassembly and gas treatment. Moreover, since the disconnecting device 9 is attached, the outer dimensions of the entire gas-insulated switchgear may increase in some cases.
【０００７】そこで、本発明の目的は、避雷器等を主回
路から切離すとき、切離装置の分解およびガス処理を必
要とせず、操作が容易で、かつ品質の低下を招くことが
なく、耐電圧試験の容易化と所要時間の短縮を図るよう
にしたガス絶縁開閉装置を提供することにある。Therefore, an object of the present invention is, when disconnecting a lightning arrester or the like from the main circuit, disassembling the disconnecting device and gas treatment are not required, the operation is easy, and the quality is not deteriorated. It is an object of the present invention to provide a gas-insulated switchgear designed to facilitate the voltage test and reduce the required time.
【０００８】[0008]
【課題を解決するための手段】本発明は、主回路に切離
装置を介して接続される機器を備えたガス絶縁開閉装置
において、切離装置を、接地金属容器の主回路側の端部
に取付けられる絶縁スペーサに固定され、中空状で、か
つ可動接触部を設けた導体と、接地金属容器の機器側の
端部に取付けられる絶縁スペーサに固定された固定側接
触部と、導体の中空部に主要部が配設され、かつ外部か
ら操作可能とした開閉機構に連結され、可動側接触部と
固定側接触部に接離する可動接触子とにより構成したも
のである。SUMMARY OF THE INVENTION The present invention is a gas-insulated switchgear equipped with equipment connected to a main circuit via a disconnecting device, wherein the disconnecting device is an end portion of a grounded metal container on the main circuit side. A conductor that is fixed to an insulating spacer and is hollow and has a movable contact portion, a fixed-side contact portion that is fixed to an insulating spacer that is attached to the equipment-side end of the ground metal container, and a hollow conductor. The main part is provided in the part, is connected to an opening / closing mechanism that can be operated from the outside, and is configured by a movable contact part and a movable contact which comes in contact with and separates from the fixed contact part.
【０００９】[0009]
【作用】接地金属容器の内部に、主回路に接続される可
動側接触部、機器に接続される固定側接触部、可動側接
触部と固定側接触部に接離する可動接触子を設け、この
可動接触子が外部から操作できるようにしているので、
耐電圧試験を行うために機器を主回路から切離し、耐電
圧試験終了後に機器を主回路に接続する場合、切離装置
の分解や再組立を必要とせず、ガス処理が不要となり、
操作も容易で、所要時間も大幅に短縮し、しかも分解再
組立に伴う品質の低下を防止することができる。In the inside of the grounded metal container, there are provided a movable side contact portion connected to the main circuit, a fixed side contact portion connected to the equipment, and a movable contactor for contacting and separating the movable side contact portion and the fixed side contact portion. Since this movable contact can be operated from the outside,
When disconnecting the device from the main circuit to perform the withstand voltage test and connecting the device to the main circuit after the withstand voltage test is completed, disassembling and reassembling the disconnecting device is not required, and gas treatment is not required.
The operation is easy, the required time is greatly shortened, and the deterioration of quality due to disassembly and reassembly can be prevented.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図面を参照して説
明する。図１は、本発明の一実施例を示す正面図であ
る。同図において、１は変圧器、２は避雷器、３は接地
開閉器、４は遮断器、５は断路器、６は接地開閉器、７
は主母線で、これらは上記した従来のガス絶縁開閉装置
と同様の構成であり、20は避雷器２を主回路から切離す
ための切離装置である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the present invention. In the figure, 1 is a transformer, 2 is a lightning arrester, 3 is a grounding switch, 4 is a circuit breaker, 5 is a disconnecting switch, 6 is a grounding switch, and 7 is a grounding switch.
Is a main bus, which has the same structure as the conventional gas-insulated switchgear described above, and 20 is a disconnecting device for disconnecting the lightning arrester 2 from the main circuit.
【００１１】この切離装置20は、図２および図３に示す
ようにＴ形をなし接地されるタンク21と、このタンク21
の同軸方向の一方の端部に取付けた絶縁スペーサ22ａに
設けられている導体23ａに固定され、他方の端部に取付
けた絶縁スペーサ22ｂに設けられている導体23ｂに接触
部24を介して取付けられている導体25と、この導体25の
軸方向と直交する方向に設けられた可動側接触部26と、
この可動側接触部26に対向し、タンク21の直交軸方向の
端部に取付けた絶縁スペーサ22ｃに設けられている導体
23ｃに固定した固定側接触部27と、この固定側接触部27
と可動側接触部26に摺動接触する可動接触子28と、この
可動接触子28を軸方向に移動させる開閉機構29で構成さ
れている。しかして、上記した導体25は、中空状に形成
され、中間部に上記した可動側接触部26が一体に設けら
れ、この可動側接触部26と反対側には円弧状の突出部25
ａと開口部25ｂを設け、上記した開閉機構29の動作に支
障を与えないようにしている。As shown in FIGS. 2 and 3, the separating device 20 has a T-shaped tank 21 which is grounded and a tank 21 which is grounded.
Is fixed to the conductor 23a provided on the insulating spacer 22a attached to one end of the coaxial direction of, and attached via the contact portion 24 to the conductor 23b provided on the insulating spacer 22b attached to the other end. And a movable contact portion 26 provided in a direction orthogonal to the axial direction of the conductor 25,
A conductor provided on an insulating spacer 22c which is attached to the end of the tank 21 in the direction of the orthogonal axis and faces the movable contact portion 26.
Fixed side contact part 27 fixed to 23c and this fixed side contact part 27
And a movable contact 28 that is in sliding contact with the movable contact portion 26, and an opening / closing mechanism 29 that moves the movable contact 28 in the axial direction. Therefore, the above-mentioned conductor 25 is formed in a hollow shape, and the movable-side contact portion 26 is integrally provided in the intermediate portion, and the arc-shaped protruding portion 25 is provided on the side opposite to the movable-side contact portion 26.
The opening a and the opening 25b are provided so as not to hinder the operation of the opening / closing mechanism 29 described above.
【００１２】また、可動側接触部26は、端部が可動側シ
ールド30を形成し、内周側に上記した可動接触子28の支
持部および接触子31を設け、可動接触子28の軸方向の移
動を支持すると共に電気的接触ができるようになってい
る。Further, the movable side contact portion 26 has a movable side shield 30 at the end thereof, and the above-mentioned supporting portion of the movable contactor 28 and the contactor 31 are provided on the inner peripheral side thereof. It is designed to support the movement of the and the electrical contact.
【００１３】固定側接触部27は、端部が固定側シールド
32を形成し、内周側に上記した可動接触子28の案内部お
よび接触子33を設け、可動接触子28の端部の挿入を案内
すると共に電気的接触ができるようになっている。The fixed-side contact portion 27 has a fixed-side shield at its end.
32 is formed, and the guide portion of the movable contactor 28 and the contactor 33 are provided on the inner peripheral side so as to guide the insertion of the end portion of the movable contactor 28 and make electrical contact.
【００１４】開閉機構29は、タンク21の外周に設けた突
出部21ａに回動自在に支持され、突出部21ａの外側端面
より突出した端部を角形断面の係合部34ａとした接地側
回転シャフト34と、この接地側回転シャフト34に同軸で
連結している絶縁ロッド35と、この絶縁ロッド35に同軸
で連結され、上記した導体25に軸受36ａ，36ｂを介して
支持されている回転シャフト37と、この回転シャフト37
に一端が固定され、導体25の中空部内に配置されている
レバー38と、このレバー38の他端とはピン39ａを介して
連結され、可動接触子28とはピン39ｂを介して連結され
ているリンク40で構成されている。The opening / closing mechanism 29 is rotatably supported by a projecting portion 21a provided on the outer periphery of the tank 21, and the end portion projecting from the outer end surface of the projecting portion 21a is used as an engaging portion 34a having a square cross section for rotation on the ground side. The shaft 34, the insulating rod 35 that is coaxially connected to the ground-side rotating shaft 34, and the rotating shaft that is coaxially connected to the insulating rod 35 and is supported by the conductor 25 through bearings 36a and 36b. 37 and this rotating shaft 37
A lever 38, one end of which is fixed in the hollow portion of the conductor 25, is connected to the other end of the lever 38 via a pin 39a, and is connected to the movable contact 28 via a pin 39b. It consists of 40 links.
【００１５】また、上記したタンク21の突出部21ａに
は、接地側回転シャフト34の係合部34ａが収容される凹
部を内面側に設けたカバー41が、シール部材およびボル
ト（図示しない）を介して取付時にシール性を保持し、
かつ着脱可能に取付けられている。Further, the above-mentioned protruding portion 21a of the tank 21 is provided with a cover 41 provided with a concave portion for accommodating the engaging portion 34a of the ground side rotating shaft 34 on the inner surface side thereof, and a seal member and a bolt (not shown). Keeps the sealing property during installation,
And it is detachably attached.
【００１６】次に、現地における耐電圧試験のため、避
雷器２を主回路から切離す方法について説明する。ま
ず、カバー41を取外し、ハンドルまたは適宜の駆動装置
（図示しない）を接地側回転シャフト34の係合部34ａに
挿入し、図２において時計方向に回動する。これによ
り、一体になっている回転シャフト37が同方向に回動
し、レバー38が同方向に回動し、リンク40を介して可動
接触子28を上方に移動させる。したがって、可動接触子
28と固定側接触部27との接触が外れ、避雷器２と導体25
の接続が切られ、避雷器２が切離装置20を分解，ガス処
理および再組立を必要とすることなく主回路から切離さ
れる。Next, a method of disconnecting the lightning arrester 2 from the main circuit for a withstand voltage test on site will be described. First, the cover 41 is removed, a handle or an appropriate drive device (not shown) is inserted into the engaging portion 34a of the ground side rotation shaft 34, and the handle 41 is rotated clockwise in FIG. As a result, the integrated rotary shaft 37 rotates in the same direction, and the lever 38 rotates in the same direction to move the movable contact 28 upward via the link 40. Therefore, the movable contact
28 and the fixed side contact portion 27 come off, and the arrester 2 and the conductor 25
And the lightning arrester 2 is disconnected from the main circuit without the need for disassembling the disconnecting device 20, gassing and reassembling.
【００１７】また、耐電圧試験終了後、接地側回転シャ
フト34を逆方向に回動すると、上記動作とは逆の動作に
より可動接触子28が下方に移動し、端部が固定側接触部
27と接触する。これにより、可動接触子28と固定側接触
部27とが接続し、避雷器２と導体25が接続し、避雷器２
が主回路に接続される。After the withstand voltage test is completed, when the rotary shaft 34 on the ground side is rotated in the opposite direction, the movable contact 28 is moved downward by the operation opposite to the above operation, and the end portion is fixed to the contact portion on the fixed side.
Contact with 27. As a result, the movable contactor 28 and the fixed-side contact portion 27 are connected, the arrester 2 and the conductor 25 are connected, and the arrester 2
Is connected to the main circuit.
【００１８】したがって、以上のように構成することに
より、避雷器２の主回路からの切離しや接続は、カバー
の着脱以外に分解や再組立が無く、かつ、ガス処理を不
要とするので操作がきわめて簡易となり、所要時間も大
幅に短縮される。また、工場で組立てられ切離装置の分
解等による品質低下を防止することができる。さらに、
従来のＴ形管路部分に配設するので、新たな管路を設け
る必要がなく、スペースを他に活用することができる。Therefore, with the above-mentioned structure, the lightning arrester 2 can be disconnected and connected from the main circuit without disassembling or reassembling other than attaching and detaching the cover, and no gas treatment is required, so that the operation is extremely difficult. It will be simple and the time required will be greatly reduced. Further, it is possible to prevent the quality from being deteriorated due to the disassembly of the separating device assembled in the factory. further,
Since it is arranged in the conventional T-shaped conduit portion, it is not necessary to provide a new conduit and the space can be utilized for other purposes.
【００１９】なお、本発明は、上記した実施例（以下、
第１実施例という）に限定されるものではなく、種々変
形実施できる。すなわち、図４は、本発明の第２実施例
の構成の要部を示す断面図で、切離装置42は、同図に示
すように略Ｌ形状をなし接地されるタンク43と、このタ
ンク43の水平方向端部に取付けた絶縁スペーサ22ａに設
けられている導体23ａに固定された導体44と、この導体
44の下端に設けられている可動側接触部26と、タンク43
の垂直方向端部に取付けた絶縁スペーサ22ｂに設けられ
ている導体23ｂに固定された固定側接触部27と、この固
定側接触部27と可動側接触部26に摺動接触する可動接触
子28と、この可動接触子28を軸方向に移動させる開閉機
構29で構成されている。ここで、導体44は、中空のＬ状
に形成され、下端に上記した可動側接触部26が一体に設
けられ、この可動側接触部26と反対側の上端には円弧状
の突出部44ａと開口部44ｂを設け、開閉機構29の動作に
支障を与えないようにしている。このように切離装置42
を構成しても、避雷器２を主回路から切離し、主回路へ
の接続は、上記した実施例と同様の操作で行うことがで
きる。The present invention is based on the above-mentioned embodiment (hereinafter,
It is not limited to the first embodiment), and various modifications can be made. That is, FIG. 4 is a cross-sectional view showing the main part of the configuration of the second embodiment of the present invention. As shown in FIG. 4, the separating device 42 has a substantially L-shaped tank 43 which is grounded, and this tank. The conductor 44 fixed to the conductor 23a provided on the insulating spacer 22a attached to the horizontal end portion of 43, and this conductor
The movable side contact portion 26 provided at the lower end of the 44 and the tank 43
Of the fixed side contact part 27 fixed to the conductor 23b provided on the insulating spacer 22b attached to the vertical end of the movable contactor 28 and the movable contactor 28 slidingly contacting the fixed side contact part 27 and the movable side contact part 26. And an opening / closing mechanism 29 for moving the movable contact 28 in the axial direction. Here, the conductor 44 is formed in a hollow L-shape, the lower end thereof is integrally provided with the movable side contact portion 26, and the upper end opposite to the movable side contact portion 26 is provided with an arcuate projecting portion 44a. The opening 44b is provided so as not to hinder the operation of the opening / closing mechanism 29. In this way, the separating device 42
Even with this configuration, the lightning arrester 2 can be separated from the main circuit, and connection to the main circuit can be performed by the same operation as that of the above-described embodiment.
【００２０】また、図５は、本発明の第３実施例の構成
の要部を示す断面図で、切離装置45は、同図に示すよう
に直線状をなし接地されるタンク46と、このタンク46の
一方の端部に取付けた絶縁スペーサ22ａに設けられてい
る導体23ａに固定された導体47と、この導体47の端部
（反固定側）に設けられている可動側接触部26と、タン
ク46の他方の端部に取付けた絶縁スペーサ22ｂに設けら
れている導体23ｂに固定された固定側接触部27と、この
固定側接触部27と可動側接触部26に摺動接触する可動接
触子28と、この可動接触子28を軸方向に移動させる開閉
機構29で構成されている。ここで、導体47は、中空のＴ
状に形成され、軸方向中間部の下部側に突出部47ａが設
けられ、開閉機構29の回転シャフト37やレバー38の支持
と、レバー38の回動に支障を与えないようにしている。
このように切離装置45を構成しても、避雷器２を主回路
から切離し、主回路への接続は、上記した実施例と同様
の操作で行うことができる。FIG. 5 is a cross-sectional view showing the main part of the structure of the third embodiment of the present invention. The separating device 45 has a tank 46 which is linear and grounded as shown in FIG. The conductor 47 fixed to the conductor 23a provided on the insulating spacer 22a attached to one end of the tank 46, and the movable contact portion 26 provided at the end (non-fixed side) of the conductor 47. And a fixed side contact portion 27 fixed to a conductor 23b provided on an insulating spacer 22b attached to the other end of the tank 46, and a sliding contact with the fixed side contact portion 27 and the movable side contact portion 26. It is composed of a movable contact 28 and an opening / closing mechanism 29 that moves the movable contact 28 in the axial direction. Here, the conductor 47 is a hollow T
The protrusion 47a is formed on the lower side of the intermediate portion in the axial direction so as not to hinder the rotation shaft 37 of the opening / closing mechanism 29 and the lever 38 and the rotation of the lever 38.
Even if the disconnecting device 45 is configured in this manner, the lightning arrester 2 can be disconnected from the main circuit and can be connected to the main circuit by the same operation as in the above-described embodiment.
【００２１】さらに、図６は、本発明の第４実施例の構
成の要部を示す断面図で、切離装置50は、同図に示すよ
うにＴ形をなし接地されるタンク51と、このタンク51の
同軸方向の一方の端部に取付けた絶縁スペーサ22ａに設
けられている導体23ａに固定され、他方の端部に取付け
た絶縁スペーサ22ｂに設けられている導体23ｂに接触部
24を介して取付けられている導体52と、この導体52の軸
方向と直交する方向に設けられて他可動側接触部26と、
この可動側接触部26に対向し、タンク51の直交軸方向の
端部に取付けた絶縁スペーサ22ｃに設けられている導体
23ｃに固定した固定側接触部27と、この固定側接触部27
と可動側接触部26に摺動接触する可動接触子28と、この
可動接触子28を軸方向に移動させる開閉機構53で構成さ
れている。ここで、導体52は、中空のＴ状に形成され、
軸方向中間部に上記した可動側接触部26が一体に設けら
れ、この可動側接触部26と反対側には円弧状の突出部52
ａと開口部52ｂを設け、開閉機構53の動作に支障を与え
ないようにしている。Further, FIG. 6 is a cross-sectional view showing the main part of the construction of the fourth embodiment of the present invention. The separating device 50 is a T-shaped tank 51 which is grounded as shown in FIG. The tank 51 is fixed to a conductor 23a provided on an insulating spacer 22a attached to one end of the tank 51 in the coaxial direction, and is in contact with a conductor 23b provided on an insulating spacer 22b attached to the other end of the tank 51.
A conductor 52 attached via 24, another movable side contact portion 26 provided in a direction orthogonal to the axial direction of the conductor 52,
A conductor provided on an insulating spacer 22c, which faces the movable contact portion 26 and is attached to the end of the tank 51 in the orthogonal axis direction.
Fixed side contact part 27 fixed to 23c and this fixed side contact part 27
And a movable contactor 28 slidingly contacting the movable side contact portion 26, and an opening / closing mechanism 53 for moving the movable contactor 28 in the axial direction. Here, the conductor 52 is formed in a hollow T shape,
The movable contact portion 26 described above is integrally provided in the axially intermediate portion, and an arcuate protrusion 52 is provided on the opposite side of the movable contact portion 26.
The opening a and the opening 52b are provided so as not to interfere with the operation of the opening / closing mechanism 53.
【００２２】また、開閉機構53は、タンク51の外周の上
部側に設けた突出部51ａに回動自在に支持された接地側
回転シャフト34と、この接地側回転シャフト34に同軸で
連結している絶縁ロッド35と、この絶縁ロッド35に同軸
で連結され、上記した導体52に軸受36ａ，36ｂを介して
回動自在に支持されている回転シャフト54と、この回転
シャフト54に一端が固定され、導体52の中空部内に配置
されているレバー55と、このレバー55の他端とピン56ａ
および球面軸受（図示しない）を介してピン軸方向にも
運動可能に連結された自在リンク57と、この自在リンク
57の他端にピン56ａと直角でピン軸方向にも運動可能に
ピン56ｂを介して連結され、回転シャフト37に一端が固
定されているレバー58と、このレバー58の他端とはピン
39ａを介して連結され、可動接触子28とはピン39ｂを介
して連結しているリンク40で構成されている。つまり、
可動接触子28と、開閉機構53の直線状で一体とした接地
側回転シャフト34，絶縁ロッド35および回転シャフト54
は、平行に配置されている。なお、回転シャフト37は、
軸受59ａ，59ｂを介して導体25に回動自在に支持されて
いる。The opening / closing mechanism 53 is coaxially connected to the ground side rotating shaft 34, which is rotatably supported by a projecting portion 51a provided on the upper side of the outer periphery of the tank 51, and the ground side rotating shaft 34. An insulating rod 35, a rotating shaft 54 that is coaxially connected to the insulating rod 35, and is rotatably supported by the conductor 52 via bearings 36a and 36b. One end is fixed to the rotating shaft 54. , The lever 55 arranged in the hollow portion of the conductor 52, the other end of the lever 55 and the pin 56a.
And a universal link 57 movably coupled to the pin axial direction via a spherical bearing (not shown), and this universal link.
The lever 58, which is connected to the other end of 57 at a right angle to the pin 56a through the pin 56b so as to be movable also in the pin axial direction, and whose one end is fixed to the rotating shaft 37, and the other end of the lever 58 are the pins.
The link 40 is connected to the movable contact 28 via the pin 39b. That is,
The movable contactor 28 and the opening / closing mechanism 53 are linearly integrated into a ground-side rotating shaft 34, an insulating rod 35, and a rotating shaft 54.
Are arranged in parallel. The rotating shaft 37 is
It is rotatably supported by the conductor 25 via bearings 59a and 59b.
【００２３】以上の第４実施例で避雷器２を主回路から
切離す場合には、カバー41を取外し、ハンドルまた適宜
の駆動装置（図示しない）を接地側回転シャフト34の係
合部34ａに挿入し、図７において反時計方向に回動す
る。これにより、一体になっている回転シャフト54が同
方向に回動し、レバー55が同方向に回動し、自在リンク
57を介してレバー58を図６において時計方向に回動し、
可動接触子28を上方に移動させる。したがって、可動接
触子28と固定側接触部27との接触が外れ、避雷器２と導
体52の接続が切られ、避雷器２が切離装置50を分解，ガ
ス処理および再組立を必要とすることなく主回路から切
離される。また、この第４実施例は、カバー41を外し、
３相の各係合部34ａを図示しないレバーとリンクにより
連結することにより、１つの駆動装置により３相同時に
駆動することができる。In the case of disconnecting the lightning arrester 2 from the main circuit in the above fourth embodiment, the cover 41 is removed and a handle or an appropriate driving device (not shown) is inserted into the engaging portion 34a of the ground side rotating shaft 34. Then, it rotates counterclockwise in FIG. As a result, the integrated rotary shaft 54 rotates in the same direction, and the lever 55 rotates in the same direction.
The lever 58 is rotated clockwise in FIG. 6 via 57,
The movable contact 28 is moved upward. Therefore, the contact between the movable contact 28 and the fixed side contact portion 27 is released, the arrester 2 and the conductor 52 are disconnected, and the arrester 2 does not require disassembly of the disconnection device 50, gas treatment and reassembly. Separated from the main circuit. Further, in the fourth embodiment, the cover 41 is removed,
By connecting each of the three-phase engaging portions 34a with a lever (not shown) by a link, it is possible to drive the three phases simultaneously by one driving device.
【００２４】また、図８は、本発明の第５実施例の構成
の要部を示す断面図で、切離装置60は、同図に示すよう
にＴ形をなし接地されるタンク61と、このタンク61の同
軸方向の一方の端部に取付けた絶縁スペーサ22ａに設け
られている導体23ａに固定され、他方の端部に取付けた
絶縁スペーサ22ｂに設けられている導体23ｂに接触部24
を介して取付けられている導体62と、この導体62の軸方
向と直交する方向に設けられている可動側接触部26と、
この可動側接触部に対向し、タンク61の直交軸方向の端
部に取付けた絶縁スペーサ22ｃに設けられている導体23
ｃに固定した固定側接触部27と、この固定側接触部27と
可動側接触部26に摺動接触する可動接触子28と、この可
動接触子28を軸方向に移動させる開閉機構63で構成され
ている。ここで、導体62は、中空のＴ状に形成され、軸
方向中間部に上記した可動側接触部26が一体に設けら
れ、この可動側接触部26と反対側に開口部62ａを設け、
開閉機構63の動作に支障を与えないようにしている。FIG. 8 is a cross-sectional view showing the main part of the configuration of the fifth embodiment of the present invention. The separating device 60 is a T-shaped tank 61 which is grounded as shown in FIG. The contact portion 24 is fixed to the conductor 23a provided on the insulating spacer 22a attached to one end of the tank 61 in the coaxial direction, and to the conductor 23b provided on the insulating spacer 22b attached to the other end.
A conductor 62 attached via, and a movable side contact portion 26 provided in a direction orthogonal to the axial direction of the conductor 62,
A conductor 23 provided on an insulating spacer 22c attached to the end of the tank 61 in the direction of the orthogonal axis, facing the movable contact portion.
It is composed of a fixed side contact part 27 fixed to c, a movable contactor 28 that makes sliding contact with the fixed side contact part 27 and the movable side contact part 26, and an opening / closing mechanism 63 that moves the movable contactor 28 in the axial direction. Has been done. Here, the conductor 62 is formed in a hollow T shape, the movable side contact portion 26 described above is integrally provided in an axially intermediate portion, and an opening portion 62a is provided on the opposite side of the movable side contact portion 26.
The operation of the opening / closing mechanism 63 is not disturbed.
【００２５】また、開閉機構63は、図９に詳細を示すよ
うにタンク61の外周の上部側で、かつ可動接触子28と同
軸となるように設けた中空状の突出部61ａにパッキング
64を介して気密を保持すると共に軸方向に移動可能と
し、かつ、大気側の端部に適宜形状の取手66ａを設けた
シャフト66と、このシャフト66と可動接触子28に同軸で
一体に連結している絶縁ロッド67で構成している。ここ
で、シャフト66には、可動接触子28の完全開状態のとき
のみ現れる完全開マーク66ａが設けられている。また、
上記した突出部61ａの上端には、上記したパッキング64
を保持する案内板68が図示しないパッキングを介して図
示しないボルトで取付けられ、この案内板68の上部にシ
ャフト66の上端部が収容される凹部69ａを設けたカバー
69が配置され、案内板68にボルト69ｂを介して取付けら
れている。ここで、カバー69は、取付けたときには、可
動接触子28が完全投入状態となるように凹部69ａの深さ
を決めている。Further, as shown in detail in FIG. 9, the opening / closing mechanism 63 is packed in a hollow protrusion 61a provided on the upper side of the outer periphery of the tank 61 and coaxially with the movable contact 28.
A shaft 66 that maintains airtightness via 64 and is movable in the axial direction, and has a handle 66a of an appropriately shaped end portion on the atmosphere side, and the shaft 66 and the movable contact 28 are coaxially and integrally connected. It consists of an insulating rod 67. Here, the shaft 66 is provided with a fully open mark 66a that appears only when the movable contact 28 is in the fully open state. Also,
The above-mentioned packing 64 is provided on the upper end of the above-mentioned protruding portion 61a.
A cover which holds a guide plate 68 is attached by a bolt (not shown) through a packing (not shown), and a recess 69a for accommodating the upper end of the shaft 66 is provided on the upper portion of the guide plate 68.
69 is arranged and attached to the guide plate 68 via bolts 69b. Here, when the cover 69 is attached, the depth of the recess 69a is determined so that the movable contactor 28 is in the fully closed state.
【００２６】しかして、シャフト66は、タンク61内に充
填されるＳＦ6 ガスの圧力をＰ（ kgf／cm2 ）としたと
き、直径Ｄ（cm）は (1)式を満足する値とする。Therefore, the shaft 66 has a diameter D (cm) which satisfies the formula (1) when the pressure of the SF 6 gas filled in the tank 61 is P (kgf / cm 2 ). ..
【００２７】[0027]
【数１】 [Equation 1]
【００２８】また、パッキング64とシャフト66との摩擦
力Ｆ2は、 (2)式の右辺より若干大きくなる値となるよ
うにパッキング64が調整されている。Further, the packing 64 is adjusted so that the frictional force F 2 between the packing 64 and the shaft 66 becomes a value slightly larger than the right side of the equation (2).
【００２９】[0029]
【数２】 [Equation 2]
【００３０】以上の第５実施例で避雷器２を主回路から
切離す場合には、カバー69を取外し、シャフト66の大気
側端部に設けられた取手66ａを引張ることにより、可動
接触子28が図８および図９で上方に移動して開路するの
で、避雷器２を主回路から切離すことができる。この場
合、シャフト66には、内部のＳＦ6 ガス圧力Ｐ（ kgf／
cm2）により、(3)式に示す軸力Ｆ1 （kgf ）を受ける。In the case of disconnecting the lightning arrester 2 from the main circuit in the above fifth embodiment, the cover 69 is removed, and the handle 66a provided at the end of the shaft 66 on the atmosphere side is pulled, whereby the movable contact 28 is moved. 8 and 9, the lightning arrester 2 can be disconnected from the main circuit because it moves upward to open the circuit. In this case, the shaft 66 has an SF 6 gas pressure P (kgf /
cm 2 ) receives the axial force F 1 (kgf) shown in the equation (3).
【００３１】[0031]
【数３】 [Equation 3]
【００３２】これに対し、パッキング64と摩擦力Ｆ2 が
(2)式を満たす関係に設定されているため、シャフト66
は摩擦力Ｆ2 によりＳＦ6 ガス圧力だけでは動かない。
つまり、シャフト66に大気側へ向う外力を加えなければ
可動接触子28は開路しない。On the other hand, the packing 64 and the frictional force F 2 are
Since the relationship is set to satisfy equation (2), the shaft 66
Does not move only by SF 6 gas pressure due to frictional force F 2 .
That is, the movable contact 28 does not open unless an external force is applied to the shaft 66 toward the atmosphere.
【００３３】次に、避雷器２を主回路に接続する場合に
は、シャフト66を内部に押込み、カバー69を案内板68に
取付けることにより、可動接触子28は完全投入状態にな
る。シャフト66を押込む際には、ＳＦ6 ガス圧力による
力Ｆ1 とパッキング64による摩擦力Ｆ2 が加算される。
ここで、シャフト66の直径Ｄは、 (1)式を満たすように
設定されているので、Ｆ1 ＋Ｆ2 ≧30kgf となり、操作
者の力で容易に操作が可能である。Next, when the lightning arrester 2 is connected to the main circuit, the shaft 66 is pushed inward and the cover 69 is attached to the guide plate 68, so that the movable contactor 28 is in a completely closed state. When the shaft 66 is pushed in, the force F 1 due to the SF 6 gas pressure and the friction force F 2 due to the packing 64 are added.
Here, since the diameter D of the shaft 66 is set so as to satisfy the expression (1), it becomes F 1 + F 2 ≧ 30 kgf, and the operator can easily operate it.
【００３４】さらに、図10は、本発明の第６実施例の構
成の要部を示す断面図である。切離装置70は、同図に示
すように略Ｌ形状をなし接地されるタンク71と、このタ
ンク71の水平方向端部に取付けた絶縁スペーサ22ａに設
けられた導体23ａに固定された導体72と、この導体72の
下端に設けられている可動側接触部26と、タンク71の垂
直方向端部に取付けた絶縁スペーサ22ｂに設けられた導
体23ｂに固定された固定側接触部27と、この固定側接触
部27と可動側接触部26に摺動接触する可動接触子28と、
この可動接触子28を軸方向に移動させる開閉機構63で構
成されている。ここで、導体72は、中空のＬ状に形成さ
れ、下端に上記した可動側接触部26が一体に設けられ、
この可動側接触部26と反対側の上端には開口部72ａを設
け、開閉機構63の動作に支障を与えないようにしてい
る。なお、タンク71の上部に設ける中空状の突出部71ａ
は、タンク71内に下部が入り込んでいる。以上の第６実
施例も上記した第５実施例と同様の操作により、避雷器
２を主回路から切離したり、主回路へ接続することがで
きる。Further, FIG. 10 is a sectional view showing the main part of the structure of the sixth embodiment of the present invention. As shown in the figure, the separating device 70 has a substantially L-shaped tank 71 to be grounded, and a conductor 72 fixed to a conductor 23a provided on an insulating spacer 22a attached to the horizontal end of the tank 71. A movable contact portion 26 provided at the lower end of the conductor 72, a fixed contact portion 27 fixed to a conductor 23b provided on an insulating spacer 22b attached to the vertical end of the tank 71, A movable contact 28 that slides into contact with the fixed contact 27 and the movable contact 26;
The opening / closing mechanism 63 is configured to move the movable contact 28 in the axial direction. Here, the conductor 72 is formed in a hollow L shape, and the movable side contact portion 26 described above is integrally provided at the lower end,
An opening 72a is provided at the upper end on the side opposite to the movable side contact portion 26 so as not to interfere with the operation of the opening / closing mechanism 63. In addition, a hollow protruding portion 71a provided on the upper portion of the tank 71
Has a lower part in the tank 71. Also in the sixth embodiment, the lightning arrester 2 can be disconnected from the main circuit or connected to the main circuit by the same operation as in the fifth embodiment.
【００３５】[0035]
【発明の効果】以上説明したように本発明によれば、切
離装置の内部に、主回路と避雷器へ接続する回路との断
続部を設けると共に、この断続部の操作をタンクの外部
から行うことができるので、切離装置の分解再組立が必
要でなく、ガス処理も不要となり、現地における耐電圧
試験で避雷器等を主回路から切離したり、主回路へ接続
する操作がきわめて容易となり、所要時間も短縮され、
製作時における品質を維持でき、安定した運転を確保で
きるガス絶縁開閉装置を提供することができる。As described above, according to the present invention, the disconnecting device is provided with a disconnecting portion between the main circuit and the circuit connected to the lightning arrester, and the disconnecting portion is operated from the outside of the tank. Therefore, it is not necessary to disassemble and reassemble the disconnection device, gas treatment is not required, and it becomes extremely easy to disconnect the lightning arrester from the main circuit or connect it to the main circuit during a withstand voltage test on site. Save time,
It is possible to provide a gas-insulated switchgear capable of maintaining quality during manufacture and ensuring stable operation.
【図１】本発明の一実施例を示す正面図。FIG. 1 is a front view showing an embodiment of the present invention.
【図２】本発明の一実施例の要部を示す断面図。FIG. 2 is a sectional view showing a main part of an embodiment of the present invention.
【図３】図２のＢ−Ｂ線断面図。FIG. 3 is a sectional view taken along line BB of FIG.
【図４】本発明の他の実施例の要部を示す断面図。FIG. 4 is a cross-sectional view showing the main parts of another embodiment of the present invention.
【図５】本発明のさらに異なる他の実施例の要部を示す
断面図。FIG. 5 is a sectional view showing an essential part of still another embodiment of the present invention.
【図６】本発明のさらに異なる他の実施例の要部を示す
断面図。FIG. 6 is a sectional view showing a main part of still another embodiment of the present invention.
【図７】図６のＣ−Ｃ線断面図。7 is a sectional view taken along line CC of FIG.
【図８】本発明のさらに異なる実施例の要部を示す断面
図。FIG. 8 is a sectional view showing a main part of a further different embodiment of the present invention.
【図９】図８の“Ｄ”部拡大図。FIG. 9 is an enlarged view of a “D” part in FIG.
【図１０】本発明のさらに異なる他の実施例の要部を示
す断面図。FIG. 10 is a sectional view showing an essential part of still another embodiment of the present invention.
【図１１】本発明に関連するガス絶縁開閉装置の変圧器
回線の単線結線図。FIG. 11 is a single wire connection diagram of a transformer line of a gas insulated switchgear related to the present invention.
【図１２】図11に示す単線結線図に相当する部分の正面
図。12 is a front view of a portion corresponding to the single line connection diagram shown in FIG.
【図１３】従来のガス絶縁開閉装置の切離装置を示す断
面図。FIG. 13 is a cross-sectional view showing a conventional gas-insulated switchgear disconnecting device.
【図１４】図13のＡ−Ａ線断面図。14 is a cross-sectional view taken along the line AA of FIG.
２…避雷器、20，42，45，50，60，70…切離装置、21，
43，46，51，61，71…タンク、22ａ，22ｂ，22ｃ…絶縁
スペーサ、23ａ，23ｂ，23ｃ，25，44，47，52，62，72
…導体、26…可動側接触部、27…固定側接触部、28…可
動接触子、29，53，63…開閉機構、35，67…絶縁ロッ
ド、37，54…回転シャフト、38，55…レバー、40…リン
ク、57…自在リンク、64…シャフト。2 ... Lightning arrester, 20, 42, 45, 50, 60, 70 ... Separation device, 21,
43, 46, 51, 61, 71 ... Tank, 22a, 22b, 22c ... Insulating spacer, 23a, 23b, 23c, 25, 44, 47, 52, 62, 72
... conductor, 26 ... movable side contact part, 27 ... fixed side contact part, 28 ... movable contactor, 29, 53, 63 ... opening / closing mechanism, 35, 67 ... insulating rod, 37, 54 ... rotating shaft, 38, 55 ... Lever, 40 ... Link, 57 ... Universal link, 64 ... Shaft.
Claims (1)
器を備えたガス絶縁開閉装置において、前記切離装置
を、接地金属容器の前記主回路側の端部に取付けられる
絶縁スペーサに固定され、中空状で、かつ可動接触部を
設けた導体と、前記接地金属容器の前記機器側の端部に
取付けられる絶縁スペーサに固定された固定側接触部
と、前記導体の中空部に主要部が配設され、かつ外部か
ら操作可能とした開閉機構に連結され、前記可動側接触
部と前記固定側接触部に接離する可動接触子とにより構
成したことを特徴とするガス絶縁開閉装置。Claim: What is claimed is: 1. A gas-insulated switchgear comprising a device connected to a main circuit via a disconnecting device, wherein the disconnecting device is an end of the grounded metal container on the main circuit side. A conductor which is fixed to an insulating spacer and which is hollow and provided with a movable contact portion; and a fixed side contact portion which is fixed to an insulating spacer attached to an end of the grounded metal container on the device side, A main part is arranged in the hollow part of the conductor, is connected to an opening / closing mechanism that can be operated from the outside, and is constituted by a movable contact part and a movable contact which comes in contact with and separates from the fixed contact part. And gas insulated switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3266420A JPH053612A (en) | 1990-11-13 | 1991-10-15 | Compressed gas insulation switchgear |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2-303890 | 1990-11-13 | ||
| JP30389090 | 1990-11-13 | ||
| JP3266420A JPH053612A (en) | 1990-11-13 | 1991-10-15 | Compressed gas insulation switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH053612A true JPH053612A (en) | 1993-01-08 |
Family
ID=26547433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3266420A Pending JPH053612A (en) | 1990-11-13 | 1991-10-15 | Compressed gas insulation switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8897669B2 (en) | 2011-11-21 | 2014-11-25 | Kyocera Document Solutions Inc. | Image forming apparatus |
-
1991
- 1991-10-15 JP JP3266420A patent/JPH053612A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8897669B2 (en) | 2011-11-21 | 2014-11-25 | Kyocera Document Solutions Inc. | Image forming apparatus |
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