JPH05135679A - Resetting mechanism for circuit-breaker small-force tripping device - Google Patents
Resetting mechanism for circuit-breaker small-force tripping deviceInfo
- Publication number
- JPH05135679A JPH05135679A JP29615891A JP29615891A JPH05135679A JP H05135679 A JPH05135679 A JP H05135679A JP 29615891 A JP29615891 A JP 29615891A JP 29615891 A JP29615891 A JP 29615891A JP H05135679 A JPH05135679 A JP H05135679A
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- reset
- lever
- moving iron
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1072—Release mechanisms which are reset by opening movement of contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
Landscapes
- Breakers (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、電力用に使用される
遮断器の引外し機構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trip mechanism for a circuit breaker used for electric power.
【0002】[0002]
【従来の技術】図5は従来の引外し装置を示す図であ
る。図5は理解を容易にするため装置単独を示すが本来
は図8の中に組み込んで使用するものである。この図に
おいて31は永久磁石でその両側には固定鉄心32が取り付
けられている。33は可動鉄心で固定鉄心32と接触可能な
ように取付られている。34はトリップロッドで永久磁石
31を貫通し、その上部のつば部がトリップピン9に取り
付けられたレバー35と係合するよう配置されている。ト
リップピン9は図8に示すものと同一である。36は圧縮
コイルばね、37は固定鉄心に取り付けられたコイル、38
は小勢力引外し装置のケースである。図7は図5のリセ
ット部分の構造を示す図である。この図において、トリ
ップピン9とケース38は図5に示すものと同一である。
39はリセットレバー、40は板ばねで図のようにリセット
レバー39の先端に取り付けられている。41は軸18に取り
付けられたレバーで図8のポールシャフトレバー4と一
体となっている。2. Description of the Related Art FIG. 5 is a view showing a conventional trip device. Although FIG. 5 shows the apparatus alone for the sake of easy understanding, it is originally used by incorporating it in FIG. In this figure, 31 is a permanent magnet, and fixed iron cores 32 are attached to both sides thereof. A movable iron core 33 is attached so as to be able to contact the fixed iron core 32. 34 is a trip rod, a permanent magnet
It is arranged so that it penetrates through 31, and the flange part of the upper part engages with the lever 35 attached to the trip pin 9. The trip pin 9 is the same as that shown in FIG. 36 is a compression coil spring, 37 is a coil attached to a fixed iron core, 38
Is the case for the small force trip device. FIG. 7 is a diagram showing the structure of the reset portion of FIG. In this figure, the trip pin 9 and the case 38 are the same as those shown in FIG.
39 is a reset lever, and 40 is a leaf spring, which is attached to the tip of the reset lever 39 as shown in the figure. Reference numeral 41 is a lever attached to the shaft 18 and is integrated with the pole shaft lever 4 of FIG.
【0003】次に従来の引外し装置リセット機構の動作
について説明する。図5に示す小勢力引外し装置は小エ
ネルギーで動作する形式の引外し装置であって常時永久
磁石31にて可動鉄心33を保持し、遮断器引外し時コイル
37に電流を流すことによって遮断器を開放し、遮断器の
開放動作時、小勢力引外し装置を動作前の状態にリセッ
トする構成となっている。即ち遮断器投入状態では図5
に示す如く可動鉄心33は永久磁石31の磁束によって固定
鉄心32に吸着された状態を保っており、トリップロッド
34とレバー35の間には間隙がある。この状態ではレバー
35は小勢力引外し装置のトリップレバー34の力を受けず
トリップピン9とトリップラッチ7は図8に示す如く係
合状態を保ち遮断器は投入状態を維持している。Next, the operation of the conventional tripping device reset mechanism will be described. The small-force trip device shown in FIG. 5 is a trip device of the type that operates with a small amount of energy. The movable iron core 33 is always held by a permanent magnet 31, and the coil for tripping the circuit breaker.
The circuit breaker is opened by passing a current through 37, and when the circuit breaker is opened, the small-force trip device is reset to the state before the operation. That is, when the circuit breaker is turned on, FIG.
The movable iron core 33 is kept attracted to the fixed iron core 32 by the magnetic flux of the permanent magnet 31, as shown in Fig.
There is a gap between 34 and lever 35. Lever in this state
35 does not receive the force of the trip lever 34 of the small-force trip device, the trip pin 9 and the trip latch 7 are kept in the engaged state as shown in FIG. 8, and the breaker is kept in the closed state.
【0004】つぎに遮断器をトリップさせるときは図5
の小勢力引外し装置のコイル37に別の制御装置から信号
(電流)を通電しコイル37の磁束が永久磁石31の磁束を
一時的に打ち消すことで固定鉄心側の吸引力が弱くなり
圧縮コイルばね36が可動鉄心を押し下げる。この動作に
より、34のトリップロッドが下に移動し35のレバーを蹴
りトリップピン9を図6の如く反時計方向に回転させて
図8のトリップラッチ7との係合を外し遮断器をトリッ
プさせる。小勢力引外し装置のリセットはこの遮断器開
放動作時に行われ、図8の可動接触子2が17の軸を中心
に反時計方向に開く動きによって4のポールシャフトレ
バーが時計方向に回転し、この動きが図7のレバー41の
動きとなって、同じく時計方向に回転しリセットレバー
39の先端にある板ばね40を押し上げリセットレバー39が
軸42を中心に反時計方向に回転してリセットレバー39の
先端がトリップロッド34を持ち上げ、圧縮コイルばね36
を圧縮しながら再び永久磁石31により、可動鉄心33を固
定鉄心32に吸着させる。遮断器が引外し状態にある時、
トリップロッド34はリセットレバー39によって持ち上げ
られた状態を維持する。Next, when tripping the circuit breaker, as shown in FIG.
A signal (current) is passed from another control device to the coil 37 of the small-force trip device, and the magnetic flux of the coil 37 temporarily cancels the magnetic flux of the permanent magnet 31 to weaken the attraction force on the fixed iron core side. The spring 36 pushes down the movable iron core. By this operation, the trip rod 34 moves downward, kicks the lever 35, and rotates the trip pin 9 counterclockwise as shown in FIG. 6 to disengage the trip latch 7 shown in FIG. 8 and trip the circuit breaker. .. The small force trip device is reset at the time of this circuit breaker opening operation, and the movement of the movable contactor 2 shown in FIG. 8 in the counterclockwise direction about the axis of 17 causes the pole shaft lever 4 to rotate clockwise, This movement is the movement of the lever 41 in FIG. 7, and it also rotates clockwise, and the reset lever
The leaf spring 40 at the tip of 39 is pushed up and the reset lever 39 rotates counterclockwise about the shaft 42, the tip of the reset lever 39 lifts the trip rod 34, and the compression coil spring 36
The movable iron core 33 is attracted to the fixed iron core 32 again by the permanent magnet 31 while compressing. When the circuit breaker is in the tripped state,
The trip rod 34 remains lifted by the reset lever 39.
【0005】[0005]
【発明が解決しようとする課題】以上のように従来形の
機構では遮断器開放時に開放力の一部を板ばねの力に変
換して小勢力引外し装置のリセットを行うため、次のよ
うな問題点があった。 (1) リセット動作が安定していない。リセット時、リセ
ットレバーはトリップロッドのつば部を片側でのみ持ち
上げており、リセット不良を起こし易い構造となってい
る。 (2) リセットストロークが一定していない。板ばね力と
引外し力の力の差でリセット動作が行われており、ばね
の劣化などによって力のバランスがくずれた場合はリセ
ット力ならびにストロークが変化することが考えられ
る。 以上のように従来の機構ではリセット動作が安定し、劣
化のない引外し装置を必要とする遮断器には適用できな
い欠点があった。As described above, in the conventional mechanism, when the breaker is opened, a part of the opening force is converted into the force of the leaf spring to reset the small force trip device. There was a problem. (1) Reset operation is not stable. At the time of reset, the reset lever lifts the brim portion of the trip rod only on one side, and has a structure that easily causes reset failure. (2) The reset stroke is not constant. The reset operation is performed by the difference between the leaf spring force and the tripping force, and it is considered that the reset force and the stroke may change when the balance of the forces is lost due to deterioration of the spring. As described above, the conventional mechanism has a drawback that the reset operation is stable and cannot be applied to a circuit breaker that requires a trip device without deterioration.
【0006】[0006]
【課題を解決するための手段】この発明による引外し装
置リセット機構では、前記を解決するためリセット駆動
側の構造をローラによる回転式として、この回転運動を
直線運動に変換する構造とし、可動鉄心の動作ストロー
クが常に一定となるようにした。また、駆動側から伝達
される機械力が可動鉄心の両側に伝達される構造とし
た。なお、リセット動作はローラが往復するとき、即ち
2回行われる。In the tripping device reset mechanism according to the present invention, in order to solve the above, the structure on the reset driving side is a rotary type by a roller, and the rotary motion is converted into a linear motion. The movement stroke of is always constant. Further, the mechanical force transmitted from the driving side is transmitted to both sides of the movable iron core. The reset operation is performed when the roller reciprocates, that is, twice.
【0007】[0007]
【作用】この発明による引外し装置リセット機構は上記
の如く構成したので駆動側の回転運動を直線運動として
取り出し、ばねを圧縮することが出来、また、ローラは
可動鉄心の両側を1往復してリセット動作を行うことが
できる。これによりばねを圧縮する寸法は常に一定であ
り、可動鉄心をリセットする時の安定性が高くなる。Since the tripping device reset mechanism according to the present invention is constructed as described above, it is possible to take out the rotary motion of the driving side as a linear motion and compress the spring, and the roller reciprocates once on both sides of the movable iron core. A reset operation can be performed. As a result, the dimension for compressing the spring is always constant, and the stability when resetting the movable core is increased.
【0008】[0008]
実施例1.以下、この発明の一実施例について説明す
る。図2は小勢力引外し装置が動作した状態、図3は小
勢力引外し装置のリセット途中、図4は小勢力引外し装
置がリセットした状態をそれぞれ示す。図1、図2、図
3、図4において51は可動鉄心、52は固定鉄心、53は投
入コイル、54はリンクで可動鉄心51とレバー55を連結し
ている。また、リンク84はレバー55とレバー80を連結し
ている。レバー55は軸73を中心として回転可能となって
おり、58,59, 90, 85,86, 87はこれらの部品を連結す
る軸である。75はこの発明による小勢力引外し装置であ
る。81はリセットレバー、82は80のレバーと81のリセッ
トレバーを連結するリンク、89はリセットレバー81の回
転中心軸、100 はリセットレバー81の先端に取り付けら
れたローラ、31は永久磁石、32は永久磁石の両側に取り
付けられた固定鉄心、33は可動鉄心、34は可動鉄心33に
ねじ止めされたトリップロッド、36は開放ばね、37はコ
イル、38はケースである。101 はトリップロッド34が貫
通している軸受け、102 は開放ばね36と可動鉄心33の上
下運動時のガイドとなっている支柱(丸棒)である。Example 1. An embodiment of the present invention will be described below. 2 shows a state in which the small force trip device operates, FIG. 3 shows a state in which the small force trip device is being reset, and FIG. 4 shows a state in which the small force trip device is reset. 1, FIG. 2, FIG. 3, and FIG. 4, 51 is a movable iron core, 52 is a fixed iron core, 53 is a closing coil, and 54 is a link connecting the movable iron core 51 and the lever 55. The link 84 connects the lever 55 and the lever 80. The lever 55 is rotatable around a shaft 73, and 58, 59, 90, 85, 86 and 87 are shafts connecting these parts. 75 is a small force trip device according to the present invention. 81 is a reset lever, 82 is a link connecting the 80 lever and the 81 reset lever, 89 is the rotation center axis of the reset lever 81, 100 is a roller attached to the tip of the reset lever 81, 31 is a permanent magnet, and 32 is Fixed iron cores attached to both sides of the permanent magnet, 33 a movable iron core, 34 a trip rod screwed to the movable iron core 33, 36 an open spring, 37 a coil, and 38 a case. Reference numeral 101 is a bearing through which the trip rod 34 penetrates, and 102 is a column (round bar) which serves as a guide when the open spring 36 and the movable iron core 33 move up and down.
【0009】つぎにこの発明の小勢力引外し装置の動作
について説明する。図2において、遮断器の投入コイル
53に別途準備される電源より、電流が通電されると可動
鉄心は固定鉄心に吸引されリンク54により連結されたレ
バー55が軸73を中心に時計方向に回転する。この動きが
リンク84によってレバー80に伝達されレバー80が軸83を
中心に反時計方向に回転し、さらにリンク82へ伝達され
る。図1は永久磁石の吸引力が別途用意された制御装置
からコイル37に送られた信号(電流) によって一時的に
弱められ、圧縮コイルばね36の力によって可動鉄心33が
トリップロッド34とともに固定鉄心32から離れ上方に押
し上げられた状態にある。前述の遮断器の投入動作から
伝えられた82のリンクが81のリセットレバーを89の軸を
中心に反時計方向に回転させ、先端のローラ100 が33の
可動鉄心を押し下げ、開放ばね36を圧縮しながら33の可
動鉄心を徐々に下方に移動させて永久磁石31によって可
動鉄心は固定鉄心32に吸引し図3の状態に移行する。な
お、可動鉄心が下方へ移動するときのガイドは支柱102
および101 の軸受けが担っている。図4では遮断器の投
入コイル53に別途準備される電源より供給されていた電
流が断たれたことにより、リセットレバー81は元の位置
に復帰するが可動鉄心33は永久磁石31によって固定鉄心
32に吸着保持されリセットが完了する。Next, the operation of the small force trip device of the present invention will be described. 2, the closing coil of the circuit breaker
When a current is supplied from a power source separately prepared for 53, the movable iron core is attracted to the fixed iron core, and the lever 55 connected by the link 54 rotates clockwise around the shaft 73. This movement is transmitted to the lever 80 by the link 84, the lever 80 rotates counterclockwise about the shaft 83, and further transmitted to the link 82. In FIG. 1, the attraction force of the permanent magnet is temporarily weakened by a signal (current) sent to the coil 37 from a separately prepared control device, and the movable iron core 33 is fixed together with the trip rod 34 by the force of the compression coil spring 36. It is in a state of being pushed upwards away from 32. The 82 link transmitted from the closing operation of the circuit breaker rotates the 81 reset lever counterclockwise about the 89 axis, and the roller 100 at the tip pushes down the movable core of 33 and compresses the open spring 36. At the same time, the movable iron core 33 is gradually moved downward, and the permanent magnet 31 attracts the movable iron core to the fixed iron core 32, and the state shown in FIG. 3 is entered. The guide when the movable iron core moves downward is the column 102.
And 101 bearings. In FIG. 4, the reset lever 81 returns to its original position due to the interruption of the current supplied from the separately prepared power supply to the closing coil 53 of the circuit breaker, but the movable iron core 33 is fixed by the permanent magnet 31.
Adsorbed and held by 32 and reset is completed.
【0010】実施例2.上記実施例では投入動作時にリ
セット動作を行う構造としているが引外し動作時でも圧
縮コイルばね力の適切な選定により同様効果が期待でき
る。Embodiment 2. In the above embodiment, the reset operation is performed during the closing operation, but the same effect can be expected even during the tripping operation by appropriately selecting the compression coil spring force.
【0011】実施例3.また、可動鉄心33は永久磁石に
よって吸着固定される方式としているが他の機械的な方
式でもよい。Embodiment 3. Further, the movable iron core 33 is of a system in which it is attracted and fixed by a permanent magnet, but another mechanical system may be used.
【0012】[0012]
【発明の効果】このリセット機構は上記の如く回転運動
としたことにより経年による変化なく常に一定したスト
ロークでリセットが行われ、また、2個のローラで可動
鉄心の左右を均等にリセットするため、リセット動作の
安定が図れる。As described above, since the reset mechanism performs the rotational movement as described above, the reset is performed with a constant stroke without any change with the passage of time, and the two iron rollers uniformly reset the left and right sides of the movable iron core. The reset operation can be stabilized.
【図1】この発明による小勢力引外し装置の動作した状
態を示した断面図である。FIG. 1 is a sectional view showing an operating state of a small force trip device according to the present invention.
【図2】この発明による小勢力引外し装置のリセット機
構全体を示した断面図である。FIG. 2 is a sectional view showing the entire reset mechanism of the small force trip device according to the present invention.
【図3】この発明による小勢力引外し装置のリセット過
程途中を示す断面図である。FIG. 3 is a cross-sectional view showing the middle of the resetting process of the small force trip device according to the present invention.
【図4】この発明による小勢力引外し装置のリセット動
作が完了し、ローラが元の位置に復帰した状態を示す断
面図である。FIG. 4 is a cross-sectional view showing a state in which the reset operation of the small-force trip device according to the present invention has been completed and the roller has returned to its original position.
【図5】従来の小勢力引外し装置のリセット状態の断面
図である。FIG. 5 is a sectional view of a conventional small force trip device in a reset state.
【図6】図5の上部のみを抜き出したものであるが、こ
の装置が動作しレバーが反時計方向に回転した状態を示
す。FIG. 6 shows a state in which only the upper part of FIG. 5 is extracted, but the device is operated and the lever is rotated counterclockwise.
【図7】従来装置のリセット機構部分の構造側面図を示
す。FIG. 7 is a structural side view of a reset mechanism portion of a conventional device.
【図8】従来装置が取り付けられている遮断器の構造図
断面で遮断器投入状態を示す。FIG. 8 is a structural diagram cross section of a circuit breaker to which a conventional device is attached, showing a circuit breaker closed state.
【図9】従来装置が取り付けられている遮断器の構造図
断面で遮断器引外し状態を示す。FIG. 9 shows a circuit breaker tripped state in a sectional view of the structure of a circuit breaker to which a conventional device is attached.
31 永久磁石 32 固定鉄心 33 可動鉄心 34 トリップロッド 36 圧縮コイルばね 37 コイル 81 リセットレバー 100 ローラ 102 支柱 31 Permanent magnet 32 Fixed iron core 33 Movable iron core 34 Trip rod 36 Compression coil spring 37 Coil 81 Reset lever 100 Roller 102 Strut
Claims (1)
バー先端にローラーを設け回転運動させることによって
リセット動作を行うことを特徴とする小勢力引外し装置
リセット機構。1. A small force trip device reset mechanism, characterized in that a roller is provided at a tip of a reset lever of a small force trip device of a circuit breaker to carry out a reset operation by rotating the roller.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3296158A JP2570533B2 (en) | 1991-11-13 | 1991-11-13 | Circuit breaker low power trip device reset mechanism |
EP19920119381 EP0542274B1 (en) | 1991-11-13 | 1992-11-12 | Reset mechanism for a small-power tripping device for a circuit breaker |
DE1992603572 DE69203572T2 (en) | 1991-11-13 | 1992-11-12 | Reset mechanism for a small circuit breaker trip device. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3296158A JP2570533B2 (en) | 1991-11-13 | 1991-11-13 | Circuit breaker low power trip device reset mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05135679A true JPH05135679A (en) | 1993-06-01 |
JP2570533B2 JP2570533B2 (en) | 1997-01-08 |
Family
ID=17829913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3296158A Expired - Lifetime JP2570533B2 (en) | 1991-11-13 | 1991-11-13 | Circuit breaker low power trip device reset mechanism |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0542274B1 (en) |
JP (1) | JP2570533B2 (en) |
DE (1) | DE69203572T2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105881290A (en) * | 2016-06-03 | 2016-08-24 | 苏州赛腾精密电子股份有限公司 | Side clamping device |
CN108074784A (en) * | 2016-11-09 | 2018-05-25 | 浙江正泰电器股份有限公司 | Magnetic flow convertor |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19845800B4 (en) * | 1998-09-30 | 2006-01-05 | Siemens Ag | Low-voltage circuit breaker with means for resetting a magnetic release |
CN102506146B (en) * | 2011-09-28 | 2015-04-01 | 中航力源液压股份有限公司 | Method and device for automatically resetting zero position on hydraulic transmission device |
JP6661058B2 (en) * | 2017-07-26 | 2020-03-11 | 三菱電機株式会社 | Breaker |
CN109887812A (en) * | 2019-04-16 | 2019-06-14 | 天津加美特电气设备有限公司 | A kind of intelligent breaker of the automatic tripping breaking of power failure |
DE102019220433B4 (en) * | 2019-12-20 | 2022-03-31 | Siemens Aktiengesellschaft | Reset element and electric switch with such a reset element |
CN111627776B (en) * | 2020-07-02 | 2022-05-31 | 鑫美地(成都)科技有限公司 | Closing mechanism, circuit breaker and closing method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52149365A (en) * | 1976-06-08 | 1977-12-12 | Mitsubishi Electric Corp | Device for deenergizing breaker with lock at insufficient voltage time |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5341785B2 (en) * | 1973-05-21 | 1978-11-07 |
-
1991
- 1991-11-13 JP JP3296158A patent/JP2570533B2/en not_active Expired - Lifetime
-
1992
- 1992-11-12 DE DE1992603572 patent/DE69203572T2/en not_active Expired - Fee Related
- 1992-11-12 EP EP19920119381 patent/EP0542274B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52149365A (en) * | 1976-06-08 | 1977-12-12 | Mitsubishi Electric Corp | Device for deenergizing breaker with lock at insufficient voltage time |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105881290A (en) * | 2016-06-03 | 2016-08-24 | 苏州赛腾精密电子股份有限公司 | Side clamping device |
CN108074784A (en) * | 2016-11-09 | 2018-05-25 | 浙江正泰电器股份有限公司 | Magnetic flow convertor |
CN108074784B (en) * | 2016-11-09 | 2019-09-20 | 浙江正泰电器股份有限公司 | Magnetic flow convertor |
Also Published As
Publication number | Publication date |
---|---|
EP0542274B1 (en) | 1995-07-19 |
JP2570533B2 (en) | 1997-01-08 |
DE69203572D1 (en) | 1995-08-24 |
EP0542274A1 (en) | 1993-05-19 |
DE69203572T2 (en) | 1996-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6285270B1 (en) | Electromagnetic actuators | |
KR100425355B1 (en) | Operating mechanism for a circuit breaker with a locking system disengageable on a short-circuit | |
US6674349B1 (en) | Opening and/or closing control device, in particular for a switchgear apparatus such as a circuit breaker, and circuit breaker equipped with such a device | |
JPH05135679A (en) | Resetting mechanism for circuit-breaker small-force tripping device | |
JP5093081B2 (en) | Electromagnetic actuator | |
RU2704021C1 (en) | Polarized electromagnet | |
US3544931A (en) | Circuit breaker with improved trip means | |
US2034146A (en) | Circuit breaker operating and control means | |
US4025886A (en) | Electric circuit breaker with electro-magnetically-assisted closing means | |
US3654535A (en) | Motor operated circuit breaker control | |
US3611215A (en) | Circuit breaker includng improved undervoltage trip means | |
RU202470U1 (en) | Polarized electromagnet | |
CN205282381U (en) | Permanent magnetic actuator | |
JP3456137B2 (en) | High speed circuit breaker | |
JPH04366521A (en) | Reset mechanism in small influence tripping device for circuit breaker | |
US4238750A (en) | Mechanical trip device for a circuit breaker | |
US3023285A (en) | Operating mechanism for circuit breaker | |
RU2763780C1 (en) | Polarized electromagnetic drive of switchgear | |
CN212084927U (en) | Miniature circuit breaker with permanent magnet type automatic closing mechanism and opening mechanism | |
US4245204A (en) | Circuit breaker magnetic trip device | |
JP2564921B2 (en) | Switchgear operating device | |
CN111564343A (en) | Miniature circuit breaker with permanent magnet type automatic closing mechanism and opening mechanism | |
JP4320540B2 (en) | Switch operating device and switch using the same | |
US2961509A (en) | Operating mechanism for an electric circuit interrupter | |
US3114021A (en) | Counting mechanism for line sectionalizers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071024 Year of fee payment: 11 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20081024 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 13 Free format text: PAYMENT UNTIL: 20091024 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091024 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101024 Year of fee payment: 14 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111024 Year of fee payment: 15 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 16 Free format text: PAYMENT UNTIL: 20121024 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 16 Free format text: PAYMENT UNTIL: 20121024 |