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JP3840848B2 - Disconnector - Google Patents
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JP3840848B2 - Disconnector - Google Patents

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Publication number
JP3840848B2
JP3840848B2 JP23783199A JP23783199A JP3840848B2 JP 3840848 B2 JP3840848 B2 JP 3840848B2 JP 23783199 A JP23783199 A JP 23783199A JP 23783199 A JP23783199 A JP 23783199A JP 3840848 B2 JP3840848 B2 JP 3840848B2
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JP
Japan
Prior art keywords
disconnector
main circuit
contact
flange
drive rod
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 - Fee Related
Application number
JP23783199A
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Japanese (ja)
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JP2001067994A (en
Inventor
廣志 田井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
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Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP23783199A priority Critical patent/JP3840848B2/en
Publication of JP2001067994A publication Critical patent/JP2001067994A/en
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Publication of JP3840848B2 publication Critical patent/JP3840848B2/en
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Description

【0001】
【発明の属する技術分野】
この発明は、電力の配電あるいは受電用の主回路の断続に用いられる断路器の構成に関するものである。
【0002】
【従来の技術】
図6は2回線受電における受電用開閉装置の主回路構成を単線で示すものである。図において、1は断路器、2は遮断器、3はCTで、A,Bの各受電回路毎に設置されている。4は消費電力量を測定するVCT、5は断路器、6は接地開閉器、7はCT、8は変圧器で、断路器5〜変圧器8は各負荷回路毎に設置される。
【0003】
図7は、図6の9に相当するスイッチギヤ9の構成を示す側断面図で、例えば、実公昭50−29056号公報に一例が示されている。図中、図6と同一の符号は同一の機器を示す。受電回路Aからスイッチギヤ9内に引き込まれたケ−ブル10は、接続部10aを介してスイッチギヤ9内の主回路に接続され、CT3、遮断器2、断路器1、接続母線11を経て隣接するスイッチギヤに接続されている。
なお、断路器1は、操作ハンドル1a、リンク機構1bを経由して盤外から操作される。断路器の可動接触子1cは、接続位置Cと断路位置D間を回動する構造のため、各開閉位置において、断路器1と周囲の主回路あるいは筐体部材との間に必要な所定の絶縁空間を確保する必要がある。また、リンク機構1bの動作用としても、リンク機構1bの周囲に所定の動作空間を確保する必要がある。
【0004】
【発明が解決しようとする課題】
上記のような従来の断路器では、可動接触子1cの各動作に対応した周囲の絶縁距離の確保、あるいは操作リンク1bの動作空間の確保が必要であり、そのため、スイッチギヤ9全体の大きさを大きくすることが必要であった。
断路器1の周囲に操作用あるいは絶縁距離確保用として大きな空間を確保する必要があり、このためスイッチギヤ全体の大きさを大きくすることが必要であった。
【0005】
この発明は、上述のような課題を解決するためになされたもので、第1の目的は、コンパクトな断路器を得ることを目的とする。また第2の目的は、構成の簡単な断路器を得るものである。さらに第3の目的は、組み立ての容易な断路器を得るものである。また、第4の目的は、構成の簡単な駆動手段を得るものである。さらに第5の目的は、安定した動作の接圧ばねを得るものである。また第6の目的は、コンパクトな断路器を得るものである。
【0006】
【課題を解決するための手段】
この発明に関わる断路器においては、断路器の可動接触子の動作方向を主回路の延在方向に対して直行方向としたものである。
【0007】
また、断路器の可動接触子と接圧ばねは、断路器の駆動体の外周に設けた複数の鍔部によって保持・駆動するようにしたものである。
【0008】
さらに、駆動体外周の複数の額部は、スペ−サにより互いに所定間隔を保つようにしたものである。
【0009】
また、駆動手段はねじ棒とねじ孔の螺合により、ねじ棒を軸方向に駆動するようにしたものである。
【0010】
さらに接圧ばねを、鍔部から軸方向に延在した筒部により保持するようにしたものである。
また、複数相分の可動接触子を駆動体の軸方向に段積みしたものである。
【0011】
【発明の実施の形態】
実施の形態1.
【0012】
図2は、この発明の実施の形態1である断路器の側断面を示すもので、図において、9はスイッチギヤで、受電回路Aからスイッチギヤ9内に引き込まれたケ−ブル10は、接続部10aを介してスイッチギヤ9内の主回路に接続され、CT3、遮断器2、断路器12、接続母線11を経て隣接するスイッチギヤに接続されている。断路器12の側部にはウォ−ムホイ−ル12aとウォ−ムギヤ12bが装着されており、ウォ−ムギヤ12bから盤の前方に向かって回動軸12cを取り付けている。また、12d、12eは断路器12の端子である。
この断路器12を操作する場合は、スイッチギヤ9の扉に設けた操作用窓9aを通して操作ハンドル(図示せず)を差込み、回動軸12cに係合させて回動操作する。
【0013】
図1は、図2に示した断路器12をE方向に見た側面図及び部分断面図を示す。図1において、左半分が断路器12の開放(断路)状態の側面を示し、右半分が断路器12の接続状態の側断面図を示す。
13a、13b、13c、13d、13eは絶縁物製の支えで、端子12d、12eを挟み込んだ形で保持している。また13fは、切り欠きである。14は通しボルトで、支え13a、13b、13c、13d、13eを貫通して保持するとともに、一方を底板15に、他方を保持板16で所定位置に保持される。17はナットで、通しボルト14の頭部14aとこのナット17とで支え13a〜13eと端子12d・12eの積層体を強固に締付けることで、この構造体を所定位置に保持している。また、通しボルト14の他端はナット17にて保持板16に強固に固定している。
【0014】
また、18は底板15に固着されたねじ座、19はねじ棒で一端に形成されたおねじ19aをねじ座18に回動可能に螺合している。20は座金、21〜23は駆動棒19の外周に装着された絶縁物製の保持部材で、座金20の上に保持部材21が1個、保持部材22が3個、保持部材23が1個の順で駆動棒19に装着し、その上部を座金24、筒状のスペーサ25を介してナット26で駆動棒19に強固に締め付けている。この締め付けは、図1においておねじ19aの上部に段状部を設け、ここで駆動棒19に装着した部材を受けるようにしているため、ナット26のねじ込みのみで強固に固定することができる。また、最下段に装着される保持部材21は、駆動棒19に貫装される筒部21aと、筒部21aの下部から外周に張り出した鍔部とからなっている。また、中段に配置される保持部材22は、駆動棒19に貫装される筒部22aと、筒部22aの下部から外周に張り出した鍔部と、鍔部22bから前記筒部22bと反対方向にかつ駆動棒19と同心状に延在して設けられた2つのばねガイドとからなっている。また、保持部材23は、保持部材22から筒部22aを取った形状としている。ここで、筒部21a、22aは、駆動軸19の軸方向寸法に対して所定の間隔を保つスペーサの役目も果たすもので、上記ナット26の強固な締め付けの対して必要な寸法を維持することができる。
なお、駆動棒19と保持部材21〜23を組み合わせたものを、可動接触子27を駆動するものという意味で駆動体と称する。
【0015】
また、27は可動接触子で、保持部材21、22の筒部21a、22aの外周部に摺動自在に装着されている。また28は可動接触子27の絶縁である。29は前記ばねガイド22c、22d間に装着され可動導体27を図1において下方向に付勢するコイルばね、30はリング状のばね受けである。
図3は図1の上方からみた平面図、図4は図1のF−F方向に見た断面図、図5は図1のG方向に見た側面図である。
【0016】
次に動作について説明する。図1において、左半分はこの断路器12の断路状態を、また右半分は接続状態を示す。まず図1の左半分の断路状態において、駆動棒19の上端部を図示しない手段で回動させると、駆動棒19の下端のおねじ19aがねじ座18の中に進入し駆動棒19は下方へ移動する。この結果、ナット26、スペーサ25、座金24を介して保持部材21〜23は下方へ駆動される。保持部材21〜23が下方へ移動すると、可動接触子27も下方へ移動し端子12d、12eと接触し橋絡状態となる。この状態から駆動棒19をさらに下方へ駆動すると、接圧ばね29は鍔部21b、22bによって下方へ押され、可動接触子27を接触方向へ付勢し接触力を与える。保持部材23の鍔部も鍔部21b、22bと同様に接圧ばね29に付勢力を与える。ばねガイド22c、22dは付勢状態においてコイル状の接圧ばね29が半径方向に変形するのを防止し、安定した付勢力を出すようにしている。
【0017】
なお、上記の動作説明では図示しない手段で駆動棒19を回動すると説明したが、ナット26部分にレンチ状のハンドルを係合することで、駆動棒19を容易に駆動することができる。また、ナット26部分またはおねじ19bの先端部にウォームホイール12aを装着すれば、図2に示すような駆動方法を採用することも可能となる。
【0018】
また、各保持部材21〜23の駆動軸19への嵌合部分、すなわちスペーサとなる部分の長さを精度よく作ることで、各相部品の取り付け寸法の精度が向上するため、組み立て時の各相の可動接触子27あるいは接圧ばね29の取り付け寸法調整が不要となる。
【0019】
実施の形態2.
なお、実施の形態1では、保持部材21〜22の筒部21a、22aと鍔部21b、22bとを一体に形成したものを示したが、図6に示すように筒部と鍔部とを分離形にしてもよい。分離形にすることで、筒部、鍔部の部品の製作が容易となる。
【0020】
実施の形態3.
また、実施の形態1で説明した遮断器は、図2に示すように駆動軸19の軸心をスイッチギヤ9の側面方向に向けた例を示したが、スイチギヤ9の前面、すなわち図2の左方向に向けて構成したものであってもよい。
【0021】
実施の形態4.
また、保持部材21〜23の鍔部は、円盤状の例を示したが、例えば歯車のように周囲に分散して突出した突起を有するものであってもよい。
【0022】
【発明の効果】
この発明は、以上説明したように構成されているので、以下に示すような効果を奏する。
【0023】
可動接触子の動作方向を主回路の延在方向に対して直交方向としたので、可動接触子の移動範囲を小さくでき、装置を小さくすることが出来る。
【0024】
また、遮断器の可動接触子と接圧ばねを断路器の駆動体の外周に設けた複数の鍔部によって保持・駆動するようにしたので、装置の構成を簡単にすることが出来る。
【0025】
さらに、駆動体外周の複数の鍔部はスペーサにより互いに所定間隔を保つようにしたので、各相の可動接触子、接圧ばねの取り付け寸法の精度をよくすることが出来、組み立て時の調整が簡単になる。
【0026】
また、駆動手段はねじ棒とねじ孔の螺合によりねじ棒を軸方向に駆動するようにしたので、駆動部の構成を簡単にすることが出来る。
【0027】
さらに接圧ばねを、鍔部から軸方向に延在した筒部により保持するようにしたので、接圧ばねに荷重がかかっても接圧ばねが半径方向に変形することを防止し安定した付勢力を得ることが出来る。
【0028】
また、複数相分の可動接触子を駆動体の軸方向に段積みしたので、三相あるいはそれ以上の多相回路にも容易に対応することができる。
【図面の簡単な説明】
【図1】 この発明の実施の形態1を示す断路器の側面図(一部断面図)である。
【図2】 この発明の実施の形態1の断路器をスイッチギヤに組み込んだ状態を示す側面図である。
【図3】 図1の平面図である。
【図4】 図1のF−F方向にみた断面図である。
【図5】 図1のG方向にみた側面図である。
【図6】 この発明の実施の形態2を示す断路器の側面図(一部断面図)である。
【図7】 受電設備の構成を示す単線接続図である。
【図8】 従来の断路器をスイッチギヤに組み込んだ状態を示す側面図である。
【符号の説明】
12 断路器
13a〜13e 支え
13f 切り欠き
14 通しボルト
18 ねじ座
19 駆動棒
19a おねじ
21 保持部材
21a 筒部
21b 鍔部
22 保持部材
22a 筒部
22b 鍔部
22c ばねガイド
22d ばねガイド
23 保持部材
27 可動接触子
28 絶縁
29 接圧ばね
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a disconnector used for power distribution or intermittent connection of a main circuit for power reception.
[0002]
[Prior art]
FIG. 6 shows, in a single line, the main circuit configuration of the power receiving switchgear in the two-line power receiving. In the figure, 1 is a disconnector, 2 is a circuit breaker, and 3 is a CT, which is installed for each power receiving circuit of A and B. 4 is a VCT for measuring power consumption, 5 is a disconnect switch, 6 is a ground switch, 7 is a CT, 8 is a transformer, and the disconnect switches 5 to 8 are installed for each load circuit.
[0003]
FIG. 7 is a side sectional view showing a configuration of the switch gear 9 corresponding to 9 in FIG. 6, and an example is shown in, for example, Japanese Utility Model Publication No. 50-29056. In the figure, the same reference numerals as those in FIG. 6 denote the same devices. The cable 10 drawn into the switch gear 9 from the power receiving circuit A is connected to the main circuit in the switch gear 9 through the connection portion 10a, and passes through the CT 3, the circuit breaker 2, the disconnector 1, and the connection bus 11. It is connected to the adjacent switchgear.
The disconnector 1 is operated from the outside of the panel via the operation handle 1a and the link mechanism 1b. Since the movable contact 1c of the disconnector is structured to rotate between the connection position C and the disconnection position D, the predetermined contact required between the disconnector 1 and the surrounding main circuit or casing member at each open / close position is provided. It is necessary to secure an insulation space. Further, for the operation of the link mechanism 1b, it is necessary to secure a predetermined operation space around the link mechanism 1b.
[0004]
[Problems to be solved by the invention]
In the conventional disconnector as described above, it is necessary to secure a surrounding insulation distance corresponding to each operation of the movable contact 1c or to secure an operation space of the operation link 1b. It was necessary to enlarge.
It is necessary to secure a large space around the disconnector 1 for operation or securing an insulation distance, and it is therefore necessary to increase the size of the entire switch gear.
[0005]
The present invention has been made to solve the above-described problems, and a first object is to obtain a compact disconnector. The second object is to obtain a disconnector with a simple configuration. A third object is to obtain a disconnector that is easy to assemble. The fourth object is to obtain a driving means with a simple configuration. Furthermore, a fifth object is to obtain a contact pressure spring that operates stably. The sixth object is to obtain a compact disconnector.
[0006]
[Means for Solving the Problems]
In the disconnector according to the present invention, the operation direction of the movable contact of the disconnector is set to be a perpendicular direction with respect to the extending direction of the main circuit.
[0007]
Further, the movable contact and the contact pressure spring of the disconnector are held and driven by a plurality of flanges provided on the outer periphery of the disconnector drive body.
[0008]
Furthermore, the plurality of forehead portions on the outer periphery of the driving body are kept at a predetermined distance from each other by a spacer.
[0009]
The driving means drives the screw rod in the axial direction by screwing the screw rod and the screw hole.
[0010]
Further, the contact pressure spring is held by a cylindrical portion extending in the axial direction from the collar portion.
Moreover, movable contacts for a plurality of phases are stacked in the axial direction of the driving body.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
[0012]
FIG. 2 shows a side cross section of the disconnector according to the first embodiment of the present invention. In FIG. 2, 9 is a switch gear, and a cable 10 drawn into the switch gear 9 from the power receiving circuit A is shown in FIG. It is connected to the main circuit in the switchgear 9 through the connecting part 10a, and is connected to the adjacent switchgear via the CT3, the circuit breaker 2, the disconnector 12, and the connection bus 11. A worm wheel 12a and a worm gear 12b are mounted on the side of the disconnector 12, and a rotating shaft 12c is attached from the worm gear 12b toward the front of the panel. 12d and 12e are terminals of the disconnector 12.
When operating the disconnector 12, an operation handle (not shown) is inserted through an operation window 9a provided on the door of the switchgear 9, and is engaged with the rotation shaft 12c to be rotated.
[0013]
FIG. 1 shows a side view and a partial cross-sectional view of the disconnector 12 shown in FIG. In FIG. 1, the left half shows an open (disconnected) side surface of the disconnector 12, and the right half shows a side sectional view of the disconnected state of the disconnector 12.
Reference numerals 13a, 13b, 13c, 13d, and 13e are insulator supports, which hold the terminals 12d and 12e in a sandwiched manner. 13f is a notch. A through-bolt 14 penetrates and holds the supports 13 a, 13 b, 13 c, 13 d, and 13 e, and one is held at a predetermined position by the bottom plate 15 and the other by the holding plate 16. Reference numeral 17 denotes a nut, which is supported by the head portion 14a of the through-bolt 14 and the nut 17, and firmly holds the laminated body of the terminals 13a to 13e and the terminals 12d and 12e, thereby holding the structure in a predetermined position. The other end of the through bolt 14 is firmly fixed to the holding plate 16 with a nut 17.
[0014]
Reference numeral 18 denotes a screw seat fixed to the bottom plate 15, and reference numeral 19 denotes a screw rod, and a male screw 19a formed at one end is screwed to the screw seat 18 so as to be rotatable. Reference numeral 20 denotes a washer, and 21 to 23 are insulating holding members mounted on the outer periphery of the drive rod 19. One holding member 21, three holding members 22, and one holding member 23 are provided on the washer 20. Are attached to the drive rod 19 in this order, and the upper portion thereof is firmly fastened to the drive rod 19 by a nut 26 via a washer 24 and a cylindrical spacer 25. In this tightening, a stepped portion is provided on the upper portion of the male screw 19a in FIG. 1, and a member attached to the drive rod 19 is received here, so that the nut 26 can be firmly fixed only by screwing. In addition, the holding member 21 mounted at the lowermost stage includes a cylindrical portion 21a penetrating the drive rod 19 and a flange portion projecting from the lower portion of the cylindrical portion 21a to the outer periphery. In addition, the holding member 22 arranged in the middle stage includes a cylindrical portion 22a penetrating the drive rod 19, a flange protruding from the lower portion of the cylindrical portion 22a to the outer periphery, and a direction opposite to the cylindrical portion 22b from the flange 22b. And two spring guides provided concentrically with the drive rod 19. The holding member 23 has a shape obtained by removing the cylindrical portion 22 a from the holding member 22. Here, the cylindrical portions 21a and 22a also serve as spacers that maintain a predetermined interval with respect to the axial dimension of the drive shaft 19, and maintain the necessary dimensions for the firm tightening of the nut 26. Can do.
In addition, what combined the drive rod 19 and the holding members 21-23 is called a drive body in the meaning which drives the movable contactor 27. FIG.
[0015]
Reference numeral 27 denotes a movable contact which is slidably mounted on the outer peripheral portions of the cylindrical portions 21a and 22a of the holding members 21 and 22. Reference numeral 28 denotes insulation of the movable contact 27. A coil spring 29 is mounted between the spring guides 22c and 22d and urges the movable conductor 27 downward in FIG. 1, and 30 is a ring-shaped spring receiver.
3 is a plan view seen from above in FIG. 1, FIG. 4 is a cross-sectional view seen in the direction FF in FIG. 1, and FIG. 5 is a side view seen in the direction G in FIG.
[0016]
Next, the operation will be described. In FIG. 1, the left half shows the disconnection state of the disconnector 12, and the right half shows the connection state. First, in the disconnection state of the left half of FIG. 1, when the upper end portion of the drive rod 19 is rotated by means not shown, the lower end male screw 19a of the drive rod 19 enters the screw seat 18 and the drive rod 19 moves downward. Move to. As a result, the holding members 21 to 23 are driven downward via the nut 26, the spacer 25, and the washer 24. When the holding members 21 to 23 are moved downward, the movable contact 27 is also moved downward to come into contact with the terminals 12d and 12e and enter a bridging state. When the drive rod 19 is further driven downward from this state, the contact pressure spring 29 is pushed downward by the flange portions 21b and 22b, and urges the movable contactor 27 in the contact direction to give a contact force. The flange portion of the holding member 23 also applies a biasing force to the contact pressure spring 29 in the same manner as the flange portions 21b and 22b. The spring guides 22c and 22d prevent the coiled contact pressure spring 29 from being deformed in the radial direction in the biased state, and provide a stable biasing force.
[0017]
In the above description of the operation, it has been described that the drive rod 19 is rotated by means (not shown). However, the drive rod 19 can be easily driven by engaging a wrench-like handle with the nut 26 portion. If the worm wheel 12a is attached to the nut 26 or the tip of the external thread 19b, a driving method as shown in FIG. 2 can be adopted.
[0018]
In addition, by accurately making the length of the fitting portion of each holding member 21 to 23 to the drive shaft 19, that is, the portion serving as the spacer, the accuracy of the mounting dimension of each phase component is improved. Adjustment of the mounting dimension of the movable contact 27 or the contact pressure spring 29 of the phase is not necessary.
[0019]
Embodiment 2. FIG.
In the first embodiment, the cylindrical portions 21a and 22a and the flange portions 21b and 22b of the holding members 21 to 22 are integrally formed. However, as shown in FIG. It may be separated. By making it a separate type, it becomes easy to manufacture the parts of the cylinder part and the collar part.
[0020]
Embodiment 3 FIG.
Further, the circuit breaker described in the first embodiment has shown an example in which the axis of the drive shaft 19 is directed to the side surface direction of the switch gear 9 as shown in FIG. It may be configured to face in the left direction.
[0021]
Embodiment 4 FIG.
Moreover, although the collar part of the holding members 21-23 showed the example of a disk shape, it may have the protrusion which spread | diffused and protruded around like a gear, for example.
[0022]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0023]
Since the operation direction of the movable contact is orthogonal to the extending direction of the main circuit, the moving range of the movable contact can be reduced and the apparatus can be reduced.
[0024]
Further, since the movable contactor and the contact pressure spring of the circuit breaker are held and driven by the plurality of flanges provided on the outer periphery of the disconnector drive body, the configuration of the apparatus can be simplified.
[0025]
Furthermore, since the plurality of flanges on the outer periphery of the drive body are kept at a predetermined distance from each other by the spacer, it is possible to improve the accuracy of the mounting dimensions of the movable contactor and the contact pressure spring of each phase, and adjustment during assembly is possible. It will be easy.
[0026]
In addition, since the drive means drives the screw rod in the axial direction by screwing the screw rod and the screw hole, the configuration of the drive unit can be simplified.
[0027]
Furthermore, since the contact pressure spring is held by the cylindrical portion extending in the axial direction from the collar portion, the contact pressure spring is prevented from being deformed in the radial direction even when a load is applied to the contact pressure spring, and is stably attached. You can gain power.
[0028]
Further, since the movable contacts for a plurality of phases are stacked in the axial direction of the driving body, it is possible to easily deal with a three-phase or more multiphase circuit.
[Brief description of the drawings]
FIG. 1 is a side view (partial sectional view) of a disconnector showing Embodiment 1 of the present invention;
FIG. 2 is a side view showing a state in which the disconnector according to Embodiment 1 of the present invention is incorporated in a switch gear.
FIG. 3 is a plan view of FIG. 1;
4 is a cross-sectional view taken along the line FF in FIG. 1. FIG.
FIG. 5 is a side view seen in the direction G of FIG.
FIG. 6 is a side view (partially sectional view) of a disconnector showing Embodiment 2 of the present invention.
FIG. 7 is a single-line connection diagram illustrating a configuration of a power receiving facility.
FIG. 8 is a side view showing a state in which a conventional disconnector is incorporated in a switch gear.
[Explanation of symbols]
12 disconnectors 13a to 13e support 13f notch 14 through bolt 18 threaded seat 19 drive rod 19a male screw 21 holding member 21a cylinder part 21b flange part 22 holding member 22a cylinder part 22b flange part 22c spring guide 22d spring guide 23 holding member 27 Movable contact 28 Insulation 29 Contact pressure spring

Claims (2)

4本の主回路導体が平行して配置され各主回路導体の長手方向の一部に空隙を形成し、前記各空隙を跨ぎかつ前記主回路導体の長手方向に対して直方向に移動して前記主回路導体間を電気的に橋絡または開離する4個の可動接触子と、
互いに連結されて前記4個の可動接触子の相間間隔を維持するとともに前記可動接触子を貫通して摺動可能に支持する筒状のスペーサ部とこのスペーサ部の外周に形成され前記可動接触子の一面に当接する鍔部とを備えた電気絶縁性の4個の保持部材と、
一端にねじを形成し前記4個の保持部材を貫通して前記4個の保持部材を締結固着した駆動棒と、
前記駆動棒の前記ねじが螺合された固定側ねじ座と、
前記保持部体の外周に同心状にかつ前記鍔部と前記前記可動接触子の他面間に装着され前記可動接触子の橋絡時に前記鍔部により付勢されて前記可動接触子を前記主回路導体に押圧する接圧ばねと、
を設けたことを特徴とする断路器。
Four main circuit conductor forms a longitudinal gap in a part of the parallel disposed each main circuit conductor, moving the air gaps straddle and the Cartesian to the longitudinal direction of the main circuit conductor Four movable contacts for electrically bridging or separating the main circuit conductors;
A cylindrical spacer portion that is connected to each other to maintain a space between the four movable contacts and that is slidably supported through the movable contacts and an outer periphery of the spacer portion. Four electrically insulating holding members each having a collar portion that abuts against one surface;
A drive rod having a screw formed at one end thereof, penetrating the four holding members, and fastening and fixing the four holding members;
A fixed side screw seat to which the screw of the drive rod is screwed;
Concentrically on the outer periphery of the holding member and mounted between the flange and the other surface of the movable contact and biased by the flange when the movable contact is bridged, the movable contact is moved to the main contact A contact pressure spring that presses against the circuit conductor;
Disconnector characterized by the provision of.
保持部材のスペーサ部と鍔部を分離可能としたことを特徴とする請求項1記載の断路器 2. The disconnector according to claim 1, wherein the spacer portion and the flange portion of the holding member are separable .
JP23783199A 1999-08-25 1999-08-25 Disconnector Expired - Fee Related JP3840848B2 (en)

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JP3840848B2 true JP3840848B2 (en) 2006-11-01

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Publication number Priority date Publication date Assignee Title
JP6599400B2 (en) * 2017-06-02 2019-10-30 矢崎総業株式会社 Power circuit breaker

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