JPH05114335A - Disconnector - Google Patents

Disconnector

Info

Publication number
JPH05114335A
JPH05114335A JP27390291A JP27390291A JPH05114335A JP H05114335 A JPH05114335 A JP H05114335A JP 27390291 A JP27390291 A JP 27390291A JP 27390291 A JP27390291 A JP 27390291A JP H05114335 A JPH05114335 A JP H05114335A
Authority
JP
Japan
Prior art keywords
contact
movable
main
contactor
arc
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
Application number
JP27390291A
Other languages
Japanese (ja)
Other versions
JP2586261B2 (en
Inventor
Tetsuo Mochizuki
哲夫 望月
Akihiko Goto
明彦 後藤
Kenji Sasamori
健次 笹森
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
Original Assignee
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 JP3273902A priority Critical patent/JP2586261B2/en
Publication of JPH05114335A publication Critical patent/JPH05114335A/en
Application granted granted Critical
Publication of JP2586261B2 publication Critical patent/JP2586261B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To prevent an arc from damaging a main contact connected with and disconnected from a movable contact in a resistance breaking type of disconnector. CONSTITUTION:Near a main contact 4, an arc contact 10 for main contact is provided, and the arc contact 10 for main contact is set near a movable contact 3 closer than the main contact 4. When a disconnector is opened, an arc is generated between the arc contact 10 for main contact and the movable contact 3, but not generated between the main contact 4 and the movable contact 3. Consequently, the main contact 4 never receives a damage.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は抵抗遮断方式の断路器
の改良に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a resistance breaking type disconnector.

【0002】[0002]

【従来の技術】図4、図5及び図6は例えば特開平3ー81
920号公報に示された従来の技術による断路器20のそれ
ぞれ閉成状態、開成動作中及び開成状態を示す断面図で
ある。図4はこの断路器20が閉成されている状態を示し
ている。図において断路器20は固定側電極1及び可動側
電極2から構成されており、固定側電極1の内部には固
定側ベース8が設けられている。
2. Description of the Related Art FIGS. 4, 5 and 6 are disclosed in, for example, Japanese Patent Laid-Open No. 3-81.
FIG. 9 is a cross-sectional view showing a closed state, an open state, and an open state of a disconnector 20 according to the conventional technique disclosed in Japanese Patent No. 920. FIG. 4 shows a state in which the disconnector 20 is closed. In the figure, the disconnector 20 is composed of a fixed side electrode 1 and a movable side electrode 2, and a fixed side base 8 is provided inside the fixed side electrode 1.

【0003】固定側ベース8は略中央に孔8Bを有し、孔
8Bに同心に接触部8Aが設けられている。接触部8Aの周囲
には複数の主接触子4がその一端4Aで接触部8Aに接触す
るように配置されている。また主接触子4の他端4Bは図
示を省略した付勢手段により可動接触子3に接触してい
る。
The fixed side base 8 has a hole 8B at the substantially center thereof.
A contact portion 8A is provided concentrically with 8B. A plurality of main contactors 4 are arranged around the contact portion 8A so as to contact the contact portion 8A at one end 4A thereof. The other end 4B of the main contactor 4 is in contact with the movable contactor 3 by a biasing means (not shown).

【0004】固定側ベース8の前記孔8B内にはアーク接
触子6が挿入されており、固定側ベース8に接触しない
様にすき間を設けて位置決めされている。アーク接触子
6の図において上端はフランジ部6Aに接続されており、
下端部は長手方向にスリット6Cが設けられている。この
スリット6Cによってアーク接触子6の下端部は可撓性を
有する。アーク接触子6の下端には接触部6Bが設けられ
ており、前記の可撓性によって接触部6Bはばね性を有す
る接点を構成している。
An arc contact 6 is inserted into the hole 8B of the fixed base 8 and is positioned with a gap so as not to contact the fixed base 8. In the figure of the arc contactor 6, the upper end is connected to the flange portion 6A,
A slit 6C is provided at the lower end in the longitudinal direction. The slit 6C makes the lower end of the arc contactor 6 flexible. A contact portion 6B is provided at the lower end of the arc contactor 6, and the contact portion 6B constitutes a contact having a spring property due to the flexibility.

【0005】フランジ部6Aと固定側ベース8との間には
リング状の抵抗体7が設けられている。
A ring-shaped resistor 7 is provided between the flange 6A and the fixed base 8.

【0006】可動側電極2内に設けられた可動側ベース
9の中央部には孔9Aが設けられており、可動接触子3が
図において上下方向に移動可能に挿入されている。可動
接触子3の先端部には凹部3Bが設けられている。可動側
ベース9には複数の摺動接触子5が設けられており上下
に移動する可動接触子3と可動側ベース9間の電気的接
続を保つようになされている。
A hole 9A is provided in the central portion of a movable base 9 provided in the movable electrode 2, and a movable contact 3 is inserted in the movable vertically upward and downward in the figure. A concave portion 3B is provided at the tip of the movable contactor 3. The movable base 9 is provided with a plurality of sliding contacts 5 so as to maintain electrical connection between the movable contact 3 that moves up and down and the movable base 9.

【0007】次に動作について説明する。この断路器20
の閉成状態においては、図4に示すように、可動接触子
3は上方に位置しており、その先端部3Aが主接触子4に
接触するとともに、可動接触子3の凹部3Bにはアーク接
触子6の接触部6Bが挿入されてその内壁に接触してい
る。
Next, the operation will be described. This disconnector 20
As shown in FIG. 4, the movable contactor 3 is in the closed state, the tip 3A of the movable contactor 3 contacts the main contactor 4, and the concave portion 3B of the movable contactor 3 has an arc. The contact portion 6B of the contactor 6 is inserted into contact with the inner wall thereof.

【0008】この断路器を開成する場合には、可動接触
子3を図示を省略した駆動機構により下方へ移動させ
る。図5は可動接触子3の先端部3Aが主接触子4から離
れた状態を示している。この時、アーク接触子6はまだ
可動接触子3の先端部3Aに接触しているので電流はアー
ク接触子6に転流するが、可動接触子3の先端部3Aと主
接触子4の他端4B間にアーク12が発生する。この状態に
おいて電流経路は、固定側ベース8、抵抗体7、フラン
ジ部6A、アーク接触子6、及び可動接触子3となり、遮
断電流は抵抗体7を経て流れることにより限流されアー
クは消滅する。
When the disconnector is opened, the movable contact 3 is moved downward by a drive mechanism (not shown). FIG. 5 shows a state in which the tip portion 3A of the movable contactor 3 is separated from the main contactor 4. At this time, since the arc contactor 6 is still in contact with the tip 3A of the movable contactor 3, the current is commutated to the arc contactor 6, but the tip 3A of the movable contactor 3 and the main contactor 4 An arc 12 is generated between the ends 4B. In this state, the current path becomes the fixed side base 8, the resistor 7, the flange portion 6A, the arc contact 6, and the movable contact 3, and the breaking current is limited by flowing through the resistor 7 and the arc disappears. ..

【0009】可動接触子3が更に下方に移動すると、図
6に示すように、可動接触子3はアーク接触子6から離
れ、遮断が完了する。
When the movable contact 3 further moves downward, the movable contact 3 separates from the arc contact 6 as shown in FIG. 6, and the interruption is completed.

【0010】[0010]

【発明が解決しようとする課題】上記従来の断路器の電
流遮断時において、主接触子4からアーク接触子6への
転流の際可動接触子3と主接触子4の間にアークが発生
するが、このアークによって主接触子4が損傷をうける
場合がある。
An arc is generated between the movable contactor 3 and the main contactor 4 during commutation from the main contactor 4 to the arc contactor 6 when the current is interrupted in the conventional disconnector. However, the main contact 4 may be damaged by this arc.

【0011】[0011]

【課題を解決するための手段】この発明の断路器は、可
動側電極と固定側電極を有する断路器の可動側電極に前
記固定側電極に接離するべく移動される可動接触子を備
え、前記固定側電極の内部に設けられ、固定側電極に電
気的に接続された固定側ベースに、前記可動接触子の移
動によって当該可動接触子に接離する主接触子を設け、
固定側ベースに、前記可動接触子の移動によって閉成時
には前記主接触子と可動接触子の接触に先立って当該可
動接触子に接触し、開成時には、前記主接触子と可動接
触子の開離より遅れて開離するべく主接触子よりも可動
側電極に近い位置に配置された主接触用アーク接触子を
備えている。
DISCLOSURE OF THE INVENTION A disconnector of the present invention comprises a movable contact of a disconnector having a movable electrode and a fixed electrode, the movable contact being moved so as to contact and separate from the fixed electrode. A fixed side base provided inside the fixed side electrode and electrically connected to the fixed side electrode is provided with a main contactor that is brought into contact with and separated from the movable contactor by the movement of the movable contactor,
On the fixed side base, when the movable contact is closed by the movement of the movable contact, the movable contact is brought into contact with the main contact prior to the contact between the main contact and the movable contact, and when opened, the main contact and the movable contact are separated from each other. The main contact arc contactor is provided closer to the movable electrode than the main contactor so as to be opened later.

【0012】[0012]

【作用】主接触用アーク接触子10と可動接触子3間の距
離は主接触子4と可動接触子3間の距離より短くなるよ
うに構成されているので、可動接触子3が主接触子4及
び主接触用アーク接触子10から離れた時、アークは主接
触子4と可動接触子3間には発生せず、主接触用アーク
接触子10と可動接触子3間に発生する。
Since the distance between the main contact arc contact 10 and the movable contact 3 is shorter than the distance between the main contact 4 and the movable contact 3, the movable contact 3 is the main contact. 4 and the main contact arc contact 10, the arc does not occur between the main contact 4 and the movable contact 3, but occurs between the main contact arc contact 10 and the movable contact 3.

【0013】[0013]

【実施例】図1、図2及び図3は本発明の実施例の断路
器30のそれぞれ閉成状態、開成動作中及び開成状態を示
す断面図である。図1はこの断路器30が閉成されている
状態を示している。断路器30は固定側電極1と可動側電
極2から構成されており固定側電極1の内部には固定側
ベース8が設けられている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 are sectional views showing a disconnecting switch 30 according to an embodiment of the present invention in a closed state, an opening operation and an open state, respectively. FIG. 1 shows a state in which the disconnector 30 is closed. The disconnector 30 is composed of a fixed side electrode 1 and a movable side electrode 2, and a fixed side base 8 is provided inside the fixed side electrode 1.

【0014】固定側ベース8は略中央に孔8Bを有し、孔
8Bに同心に接触部8Aが設けられている。接触部8Aの周囲
には複数の主接触子4がその一端4Aで接触部8Aに接触す
るように配置されている。また主接触子4の他端4Bは図
示を省略した付勢手段により可動接触子3に接触してい
る。
The fixed-side base 8 has a hole 8B at substantially the center.
A contact portion 8A is provided concentrically with 8B. A plurality of main contactors 4 are arranged around the contact portion 8A so as to contact the contact portion 8A at one end 4A thereof. The other end 4B of the main contactor 4 is in contact with the movable contactor 3 by a biasing means (not shown).

【0015】固定側ベース8に設けられた孔8Bにはアー
ク接触子6が挿入されており、固定側ベース8に接触し
ない様にすきまをもって位置決めされている。アーク接
触子6の上端はフランジ部6Aに接続されており下端部は
長手方向にスリット6Cが設けられている。このスリット
6Cによってアーク接触子6の下端部は可撓性を有する。
アーク接触子6の下端には接触部6Bが設けられており、
前記の可撓性によって接触部6Bはばね性を有する接点を
構成している。
An arc contact 6 is inserted into a hole 8B provided in the fixed base 8 and is positioned with a clearance so as not to contact the fixed base 8. The upper end of the arc contactor 6 is connected to the flange portion 6A, and the lower end portion is provided with a slit 6C in the longitudinal direction. This slit
The lower end portion of the arc contactor 6 has flexibility due to 6C.
A contact portion 6B is provided at the lower end of the arc contactor 6,
Due to the flexibility, the contact portion 6B constitutes a contact having a spring property.

【0016】フランジ部6Aと固定側ベース8との間には
公知のリング状の抵抗体7が設けられている。
A known ring-shaped resistor 7 is provided between the flange portion 6A and the fixed-side base 8.

【0017】固定側ベース8の接触部8Aには複数の主接
触用アーク接触子10が設けられており、その接触部10A
は可動接触子3の凹部3Bの内壁に接触するようになされ
ている。可動接触子3が主接触子4及び主接触用アーク
接触子10から離れた状態において、主接触用アーク接触
子10と可動接触子3間の距離は主接触子4と可動接触子
3間の距離より短くなるように構成されている。
The contact portion 8A of the fixed side base 8 is provided with a plurality of main contact arc contacts 10 and the contact portion 10A is provided.
Is adapted to come into contact with the inner wall of the concave portion 3B of the movable contactor 3. When the movable contact 3 is separated from the main contact 4 and the main contact arc contact 10, the distance between the main contact arc contact 10 and the movable contact 3 is between the main contact 4 and the movable contact 3. It is configured to be shorter than the distance.

【0018】可動側電極2内に設けられた可動側ベース
9の中央部には孔9Aが設けられており、可動接触子3が
図において上下方向に移動可能に挿入されている。可動
側ベース9には複数の摺動接触子5が設けられており上
下に移動する可動接触子3と可動側ベース9間の電気的
接続を保つようになされている。
A hole 9A is provided at the center of the movable base 9 provided in the movable electrode 2, and the movable contact 3 is inserted in the movable portion in the vertical direction in the figure. The movable base 9 is provided with a plurality of sliding contacts 5 so as to maintain electrical connection between the movable contact 3 that moves up and down and the movable base 9.

【0019】この断路器を開成する場合には、図示を省
略した駆動機構により可動接触子3を下方へ移動させ
る。その結果先端部3Aがまず主接触子4から離れる。こ
のとき主接触用アーク接触子10は依然として可動接触子
3に接触しているので可動接触子3と主接触子4間には
アークが発生せず、主回路電流は可動接触子3と主接触
用アーク接触子10間を流れる。開成動作が更に進行して
図2に示す用に可動接触子3と主接触用アーク接触子10
が開離すると両者間にアーク11が発生する。この状態に
おいて、固定側ベース8、抵抗体7、アーク接触子6及
び可動接触子3からなる電流径路が形成され、遮断電流
は抵抗体7に転流する。これによってアーク接触子6と
可動接触子3を経て流れる電流は抵抗体7により限流さ
れる。可動接触子3が更に下方に移動すると、図3に示
すように、可動接触子3はアーク接触子6から離れ、限
流された電流を遮断し遮断動作が完了する。
When the disconnector is opened, the movable contactor 3 is moved downward by a drive mechanism (not shown). As a result, the tip portion 3A first separates from the main contactor 4. At this time, since the main contact arc contactor 10 is still in contact with the movable contactor 3, no arc is generated between the movable contactor 3 and the main contactor 4, and the main circuit current is in contact with the movable contactor 3 and the main contact. Flows between the arc contacts 10 for use. As the opening operation further progresses, the movable contactor 3 and the main contact arc contactor 10 as shown in FIG.
When is separated, an arc 11 is generated between the two. In this state, a current path including the fixed side base 8, the resistor 7, the arc contact 6 and the movable contact 3 is formed, and the breaking current is commutated to the resistor 7. As a result, the current flowing through the arc contact 6 and the movable contact 3 is limited by the resistor 7. When the movable contact 3 further moves downward, as shown in FIG. 3, the movable contact 3 separates from the arc contact 6 and interrupts the limited current to complete the interruption operation.

【0020】[0020]

【発明の効果】この発明によれば、主接触子4の近傍に
一端が固定側ベース8に接続された主接触用アーク接触
子10が可動接触子3に対して主接触子4よりも近い位置
に設けられているので、可動接触子3が主接触子4及び
主接触用アーク接触子10から離れたときのアークは、主
接触用アーク接触子10と可動接触子3間には発生するが
主接触子4と可動接触子3間には発生しない。従って主
接触子4が損傷をうけることはない。
According to the present invention, the main contact arc contactor 10, one end of which is connected to the fixed side base 8 near the main contactor 4, is closer to the movable contactor 3 than the main contactor 4. Since the movable contactor 3 is provided at the position, the arc when the movable contactor 3 is separated from the main contactor 4 and the main contact arc contactor 10 is generated between the main contact arc contactor 10 and the movable contactor 3. Does not occur between the main contactor 4 and the movable contactor 3. Therefore, the main contactor 4 is not damaged.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の断路器の閉成状態を示す断面図。FIG. 1 is a cross-sectional view showing a closed state of a disconnector of the present invention.

【図2】本発明の断路器の開成動作中の状態を示す断面
図。
FIG. 2 is a cross-sectional view showing a state during an opening operation of the disconnector of the present invention.

【図3】本発明の断路器の開成状態を示す断面図。FIG. 3 is a sectional view showing an open state of the disconnector of the present invention.

【図4】従来の断路器の閉成状態を示す断面図。FIG. 4 is a sectional view showing a closed state of a conventional disconnector.

【図5】従来の断路器の開成動作中の状態を示す断面
図。
FIG. 5 is a cross-sectional view showing a state during opening operation of a conventional disconnector.

【図6】従来の断路器の開成状態を示す断面図。FIG. 6 is a sectional view showing an open state of a conventional disconnector.

【符号の説明】[Explanation of symbols]

1 可動側電極 2 固定側電極 3 可動接触子 4 主接触子 8 固定側ベース 10 主接触用アーク接触子 30 断路器 1 movable side electrode 2 fixed side electrode 3 movable contactor 4 main contactor 8 fixed side base 10 arc contactor for main contact 30 disconnector

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 可動側電極と固定側電極を有する断路器
の可動側電極に設けられ、前記固定側電極に接離するべ
く移動される可動接触子 前記固定側電極の内部に設けられ、固定側電極に電気的
に接続された固定側ベース、 固定側ベースに接触して設けられ、前記可動接触子の移
動によって可動接触子に接離する主接触子、 固定側ベースに設けられ、前記可動接触子の移動によっ
て閉成時には前記主接触子と可動接触子の接触に先立っ
て当該可動接触子に接触し、開成時には、前記主接触子
と可動接触子の開離より遅れて開離するべく主接触子よ
りも可動側電極に近い位置に配置された主接触用アーク
接触子を有する断路器。
1. A movable contact provided on a movable side electrode of a disconnector having a movable side electrode and a fixed side electrode, and a movable contact moved to contact with and separate from the fixed side electrode. A fixed side base electrically connected to the side electrode, a main contact provided in contact with the fixed side base and contacting with and separating from the movable contact by the movement of the movable contact, a fixed side base provided with the movable side When the contact is moved, the main contact and the movable contact are brought into contact with the movable contact prior to the contact when the contact is closed, and when the contact is opened, the main contact and the movable contact are opened later than the separation of the main contact and the movable contact. A disconnector having an arc contactor for main contact arranged at a position closer to the movable electrode than the main contactor.
【請求項2】 可動接触子は管状の先端部を有し、前記
主接触子は前記管状の先端部の外周に接触し、前記主接
触用アーク接触子は前記管状の先端部の内壁に接触する
ことを特徴とする請求項1の断路器。
2. The movable contactor has a tubular tip portion, the main contactor contacts the outer circumference of the tubular tip portion, and the main contact arc contactor contacts the inner wall of the tubular tip portion. The disconnector according to claim 1, wherein:
JP3273902A 1991-10-22 1991-10-22 Disconnector Expired - Lifetime JP2586261B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3273902A JP2586261B2 (en) 1991-10-22 1991-10-22 Disconnector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3273902A JP2586261B2 (en) 1991-10-22 1991-10-22 Disconnector

Publications (2)

Publication Number Publication Date
JPH05114335A true JPH05114335A (en) 1993-05-07
JP2586261B2 JP2586261B2 (en) 1997-02-26

Family

ID=17534168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3273902A Expired - Lifetime JP2586261B2 (en) 1991-10-22 1991-10-22 Disconnector

Country Status (1)

Country Link
JP (1) JP2586261B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225390A (en) * 1988-02-23 1993-07-06 Siemens Aktiengesellschaft Catalyst for reducing nitrogen oxides
USRE36171E (en) * 1993-02-17 1999-03-30 Siemens Aktiengesellschaft Catalytic converter for converting reactants of a gas mixture
CN104269315A (en) * 2014-09-05 2015-01-07 中国西电电气股份有限公司 High-power switch with current limiter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225390A (en) * 1988-02-23 1993-07-06 Siemens Aktiengesellschaft Catalyst for reducing nitrogen oxides
USRE36171E (en) * 1993-02-17 1999-03-30 Siemens Aktiengesellschaft Catalytic converter for converting reactants of a gas mixture
CN104269315A (en) * 2014-09-05 2015-01-07 中国西电电气股份有限公司 High-power switch with current limiter

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JP2586261B2 (en) 1997-02-26

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