JP2008159503A - External operation handle device of circuit breaker - Google Patents

External operation handle device of circuit breaker Download PDF

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JP2008159503A
JP2008159503A JP2006348922A JP2006348922A JP2008159503A JP 2008159503 A JP2008159503 A JP 2008159503A JP 2006348922 A JP2006348922 A JP 2006348922A JP 2006348922 A JP2006348922 A JP 2006348922A JP 2008159503 A JP2008159503 A JP 2008159503A
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circuit
trip
circuit breaker
short
handle device
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JP4867644B2 (en
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Isamu Nagahiro
永廣　　勇
Motohiro Shimizu
源広 清水
Takeshi Emura
武史 江村
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Fuji Electric FA Components and Systems Co Ltd
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Fuji Electric FA Components and Systems Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an external operation handle device which is applied to a circuit breaker installed in a board, and equipped with an alarm display function that a short-circuit trip state can be confirmed directly and visually from the outside of the board when the circuit breaker is trip-operated due to a short-circuit accident of a distribution circuit. <P>SOLUTION: In the external operation handle device 11 in which a handle 3 of the circuit breaker 1 mounted to a panel of a distribution board and a control board and installed in the board is open/close-operated from the outside of the board, as a short-circuit display means which is cooperated with a trip display button 5 equipped at a short-circuit alarm contact unit 4 attached to the circuit breaker and in which an operation state is alarm-displayed outside the board at a trip operation of the circuit breaker due to a short-circuit accident, a trip display pin 13 is installed which appears and disappears frontward from a mounting base 11a of the external device handle device 11. In the short-circuit trip operation of the circuit breaker 1, the trip display pin 13 is protruded forward of the external operation handle device 11 interlocked with the trip display button 5 of the short-circuit alarm contact unit 4, and alarm-displayed outside the board. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、低圧配電系統の配電盤，制御盤などに装備して使用するオートブレーカ，漏電遮断器，マニュアルモータスタータなどを対象とした過負荷，短絡保護機能を備えた回路遮断器に適用する外部操作ハンドル装置に関し、詳しくは盤外から回路遮断器の短絡トリップ状態を目視確認するための表示構造に係わる。   The present invention is an external circuit applied to a circuit breaker having an overload and short circuit protection function for an auto breaker, an earth leakage breaker, a manual motor starter, etc. used in a switchboard or a control panel of a low voltage distribution system. More specifically, the operation handle device relates to a display structure for visually confirming a short circuit trip state of the circuit breaker from outside the panel.

配電盤，制御盤などに装備した頭記の回路遮断器については、盤外からのハンドル操作により回路遮断器を開閉するための外部操作ハンドル装置が採用されている（例えば、特許文献１参照）。
この外部操作ハンドル装置は、よく知られているように配電盤のパネルに取付けて盤内に設置した回路遮断器のハンドルに連結し、その取付ベースの前面にロータリー式のハンドル把手を備えた構成になり、前記ハンドル把手を盤内に設置した回路遮断器のハンドルに連結し、盤外からハンドル把手をＯＮ，ＯＦＦ位置に回わして回路遮断器を開閉操作する。 As for the circuit breakers described above, which are mounted on a switchboard, a control panel, etc., an external operation handle device for opening and closing the circuit breaker by operating a handle from the outside of the panel is employed (for example, see Patent Document 1).
As is well known, this external operation handle device is attached to the panel of the switchboard, connected to the handle of the circuit breaker installed in the panel, and has a structure with a rotary handle handle on the front of its mounting base. The handle handle is connected to the handle of the circuit breaker installed in the panel, and the handle handle is turned to the ON / OFF position from the outside of the panel to open and close the circuit breaker.

また、回路遮断器には主回路の過負荷・短絡による過電流を検出して接触子を開極する過電流引外し装置として、過負荷に対応するバイメタル式の時延引外し装置，および短絡に対応する電磁式の瞬時引外し装置を備えている。
そして、前記の過電流引外し装置が作動して回路遮断器がトリップ動作すると、開閉機構に連繋したハンドルはＯＮ位置からＯＦＦとの中間位置に移動して停止する。また、この場合には回路遮断器に連結した外部操作ハンドル装置のハンドル把手もＯＮ位置とＯＦＦ位置の中間に停止してトリップ動作を表示する。 The circuit breaker is an overcurrent tripping device that detects overcurrent caused by overload / short circuit in the main circuit and opens the contact. It has a corresponding electromagnetic instantaneous trip device.
When the overcurrent tripping device is activated and the circuit breaker trips, the handle connected to the opening / closing mechanism moves from the ON position to the intermediate position between OFF and stops. In this case, the handle handle of the external operation handle device connected to the circuit breaker also stops in the middle between the ON position and the OFF position and displays a trip operation.

一方、回路遮断器には、配電系統の過負荷，短絡事故などによる過電流でトリップ動作した場合に、このトリップ動作を検知して外部に知らせるための付属装置（オプション）として警報接点ユニットが用意されている。この警報接点ユニットは、回路遮断器の本体ケースの中に装着して回路遮断器がトリップ動作した際に警報接点を閉じて外部に警報信号（電気信号）を出力するようにした内装型のほか、回路遮断器のケース側面に装着したトリップ表示ボタン付きの短絡警報接点ユニットも知られている（例えば、特許文献２参照）。   On the other hand, the circuit breaker is equipped with an alarm contact unit as an accessory device (option) to detect the trip operation and notify the outside when it trips due to an overcurrent due to an overload or short circuit in the distribution system. Has been. This alarm contact unit is installed in the body case of the circuit breaker so that when the circuit breaker trips, the alarm contact is closed and an alarm signal (electrical signal) is output to the outside. There is also known a short-circuit alarm contact unit with a trip display button attached to the side of a circuit breaker case (see, for example, Patent Document 2).

この外装型の短絡警報接点ユニットは、そのケースに警報接点（電気接点），機械的なトリップ表示ボタン（接点のリセットボタンを兼用），およびアクチュエータレバーを内蔵してそのアクチュエータレバーを回路遮断器の引外し機構に連繋し、回路遮断器が短絡トリップした際に、警報接点を閉じて電気的な警報信号を出力すると同時に、トリップ表示ボタンをケースから突き出して警報表示するようにしている。   This external short-circuit alarm contact unit has an alarm contact (electrical contact), a mechanical trip display button (also used as a contact reset button), and an actuator lever in its case, and the actuator lever is connected to the circuit breaker. When connected to the trip mechanism and the circuit breaker is tripped, the alarm contact is closed and an electrical alarm signal is output. At the same time, a trip display button is projected from the case to display an alarm.

次に、前記した回路遮断器およびトリップ表示ボタン付きの短絡警報接点ユニットの構成，動作を図６〜図８で説明する。まず、図６（ａ），（ｂ）において、１は回路遮断器、２は回路遮断器1の本体ケース、３は本体ケース１のケースカバーに取付けた手動操作ハンドル（ロータリー式ハンドル）、４は本体ケース１の外側面に取付けた短絡警報接点ユニット、５は該短絡警報接点ユニット４のトリップ表示ボタン（リセットボタン兼用）であり、このトリップ表示ボタン５は常時はケースの内方に没入しており、後記のように回路遮断器１が短絡電流を検知してトリップ動作すると、これに連動して図示のようにケース上面に突き出して短絡トリップの状態を警報表示する。   Next, the construction and operation of the short circuit alarm contact unit with the circuit breaker and trip display button described above will be described with reference to FIGS. 6 (a) and 6 (b), 1 is a circuit breaker, 2 is a main body case of the circuit breaker 1, 3 is a manual operation handle (rotary handle) attached to the case cover of the main body case 1, 4 Is a short-circuit alarm contact unit attached to the outer surface of the main body case 1, 5 is a trip display button (also used as a reset button) of the short-circuit alarm contact unit 4, and this trip display button 5 is always immersed inside the case. When the circuit breaker 1 detects a short-circuit current and trips as described later, the circuit breaker 1 projects to the upper surface of the case as shown in the figure and displays a short-circuit trip state as an alarm.

図７は回路遮断器（マニュアルモータスタータ）１に搭載した開閉機構，過電流引外し装置の組立構造図で、６はトグルリンク式の開閉機構、６ａは開閉機構６のラッチ受け、６ｂは操作ハンドル３（図６参照）に連結する歯車、７は過負荷に対応するバイメタル式の時延引外し装置、８は短絡に対応する電磁式の瞬時引外し装置、８ａは瞬時引外し装置８の電磁コイル、８ｂはプランジャ、８ｃはプランジャ８ｂの動作に連動するトリップアクチュエータ、９は前記トリップアクチュエータ８ｃと開閉機構６のラッチ受け６ａとの間を連繋し、瞬時引外し装置８の動作に応動してラッチ受け６ａを釈放位置に駆動する上下スライド式のトリップ操作板である。なお、時延引外し装置７は、前記のトリップ操作板９を介さずにバイメタルの操作端とラッチ受け６ａとの問が別なアクチュエータレバーを介して連繋されている。   FIG. 7 is an assembly structure diagram of the switching mechanism and overcurrent tripping device mounted on the circuit breaker (manual motor starter) 1. 6 is a toggle link type switching mechanism, 6a is a latch receiver of the switching mechanism 6, and 6b is an operation. A gear connected to the handle 3 (see FIG. 6), 7 is a bimetallic type time-delaying device corresponding to overload, 8 is an electromagnetic instantaneous tripping device corresponding to a short circuit, and 8a is an electromagnetic of the instantaneous tripping device 8. A coil, 8b is a plunger, 8c is a trip actuator interlocking with the operation of the plunger 8b, 9 is connected between the trip actuator 8c and the latch receiver 6a of the opening / closing mechanism 6, and in response to the operation of the instantaneous trip device 8 This is an up / down slide type trip operation plate for driving the latch receiver 6a to the release position. In the time-delaying device 7, the bimetal operating end and the latch receiver 6 a are connected via another actuator lever without using the trip operation plate 9.

また、図８は回路遮断器１に内蔵した前記のトリップ操作板９と回路遮断器の側面に装着した短絡警報接点ユニット４のトリップ表示ボタン５との間の連繋構造を表す図である。ここで、トリップ操作板（樹脂板）９は遮断器本体ケース２の内部で上下スライド可能に案内支持され、かつ復帰ばね１０により上方に押し上げ付勢されている。また、トリップ操作板９の肩部には先記した瞬時引外し装置８のトリップ操作レバー８ｃが、また板面に開口したカム面付きの窓穴にはラッチ受け６ａの一端が対向している。一方、短絡警報接点ユニット４は、トリップ表示ボタン５および警報接点（図示せず）に連繋するアクチュエータレバー４ａを備えており、このアクチュエータレバー４ａの先端が回路遮断器１の本体ケース２の内方に突き出して前記トリップ操作板９の側縁に形成した凹溝に係合させている。   FIG. 8 is a view showing a connection structure between the trip operation plate 9 built in the circuit breaker 1 and the trip display button 5 of the short-circuit alarm contact unit 4 mounted on the side surface of the circuit breaker. Here, the trip operation plate (resin plate) 9 is guided and supported inside the circuit breaker body case 2 so as to be slidable up and down, and is urged upward by a return spring 10. Further, the trip operation lever 8c of the above-mentioned instantaneous tripping device 8 is opposed to the shoulder portion of the trip operation plate 9, and one end of the latch receiver 6a is opposed to a window hole with a cam surface opened in the plate surface. . On the other hand, the short-circuit alarm contact unit 4 includes an actuator lever 4a linked to a trip display button 5 and an alarm contact (not shown), and the tip of the actuator lever 4a is inward of the body case 2 of the circuit breaker 1. And is engaged with a concave groove formed on the side edge of the trip operation plate 9.

上記の構成で、常時はトリップ操作板９が図示の上昇位置に待機しており、この状態では短絡警報接点ユニット４のアクチュエータレバー４ａに連繋した警報接点をＯＦＦするとともに、トリップ表示ボタン５を引っ込んだ位置に鎖錠している。ここで、回路遮断器１の主回路に短絡事故電流による大きな過電流が流れると、図７に示した瞬時引外し装置８が作動し、そのトリップ操作レバー８ｃが復帰ばね１０に抗してトリップ操作板９を下方に押し下げるとともに、この動きに従動してラッチ受け６ａがカム面に沿い左方向に傾動して開閉機構６（図７参照）の鎖錠を釈放し、回路遮断器１を瞬時にトリップ動作させて主回路接点を開極する。また、このトリップ動作過程でトリップ操作板９が下降すると、短絡警報接点ユニット４のアクチュエータレバー４ａがトリップ操作盤９に押されて反時計方向に回動し、これに応動して警報接点がＯＮとなって外部に警報信号（電気信号）を出力するとともに、アクチュエータレバー４ａとの係合が外れたトリップ表示ボタン５が図示されてない付勢ばねに押されてケースの上面から突き出して警報表示する。なお、回路遮断器のＯＦＦ状態で該短絡警報接点ユニットのトリップ表示ボタン５を押し込むと、該ユニットがリセット状態に復帰する。
２００５−１４９９１８号公報（図５−図７） ２００３−３１７５９９号公報（図６−図８） With the above configuration, the trip operation plate 9 is always waiting at the raised position shown in the figure. In this state, the alarm contact connected to the actuator lever 4a of the short-circuit alarm contact unit 4 is turned OFF and the trip display button 5 is retracted. It is locked in the position. Here, when a large overcurrent due to a short-circuit fault current flows in the main circuit of the circuit breaker 1, the instantaneous trip device 8 shown in FIG. 7 is activated, and the trip operation lever 8c is tripped against the return spring 10. While the operation plate 9 is pushed downward, the latch receiver 6a is tilted to the left along the cam surface in accordance with this movement to release the lock of the opening / closing mechanism 6 (see FIG. 7), and the circuit breaker 1 is instantaneously moved. To open the main circuit contact. When the trip operation plate 9 is lowered during the trip operation process, the actuator lever 4a of the short-circuit alarm contact unit 4 is pushed by the trip operation panel 9 and rotates counterclockwise, and the alarm contact is turned on in response to this. The alarm signal (electrical signal) is output to the outside, and the trip display button 5 disengaged from the actuator lever 4a is pushed by a biasing spring (not shown) and protrudes from the upper surface of the case to display an alarm. To do. When the trip display button 5 of the short circuit alarm contact unit is pushed in the circuit breaker OFF state, the unit returns to the reset state.
2005-149918 (FIGS. 5-7) No. 2003-317599 (FIGS. 6-8)

ところで、前記した従来の外部操作ハンドル装置は、回路遮断器のトリップ動作時にハンドル把手がＯＮ位置とＯＦＦ位置の中間位置（トリップ表示位置）に停止するので、このハンドル把手の停止位置から回路遮断器のトリップ動作を盤外から目視確認できるものの、回路遮断器が過負荷でトリップ動作したのか、短絡事故が原因でトリップ動作したのかが判別できない。   By the way, in the above-described conventional external operation handle device, the handle handle stops at an intermediate position (trip display position) between the ON position and the OFF position when the circuit breaker is tripped. Although it is possible to visually check the trip operation from the outside of the panel, it is not possible to determine whether the circuit breaker tripped due to overload or because of a short circuit accident.

また、図６〜図８に示したトリップ表示ボタン付きの短絡警報接点ユニット４（外装型）は、回路遮断器がむきだし状態で現場に設置されていれば、トリップ表示ボタン５の突き出し位置から回路遮断器が短絡トリップしたことを直ちに目視確認することができるものの、回路遮断器および該遮断器に装着した短絡警報接点ユニットが配電盤，制御盤の盤内に設置されている場合には、配電盤の扉を開いて中を覗かない限りは、回路遮断器のトリップ動作が過負荷によるのか，短絡事故が原因でトリップ動作したのかが盤外からでは目視確認できない。しかも、通電状態で配電盤，制御盤の扉を開くことは保安面で危険を伴う。   Further, the short-circuit alarm contact unit 4 (exterior type) with a trip display button shown in FIGS. 6 to 8 is configured so that the circuit breaker is exposed from the protruding position of the trip display button 5 if it is installed in the field. Although the circuit breaker and the short-circuit alarm contact unit attached to the circuit breaker are installed in the switchboard and control panel, it is possible to immediately confirm that the circuit breaker has tripped. Unless the door is opened and the inside is looked into, it is not possible to visually confirm from outside the panel whether the trip action of the circuit breaker is due to overload or the trip action was caused by a short circuit accident. Moreover, it is dangerous to open the switchboard and control panel doors when the power is on.

本発明は上記の点に鑑みなされたものであり、配電盤，制御盤の盤内に設置した回路遮断器に先記したトリップ表示ボタン付きの短絡警報接点ユニット（外部付属装置）を使用することにより、短絡事故が原因で回路遮断器がトリップ動作した場合にはその動作状態を盤外から直接目視確認できるような警報表示機能を備えた回路遮断器の外部操作ハンドル装置を提供することを目的とする。   The present invention has been made in view of the above points, and by using the short-circuit alarm contact unit (external accessory device) with the trip display button described above in the circuit breaker installed in the panel of the switchboard or control panel. The purpose of the present invention is to provide an external operation handle device for a circuit breaker equipped with an alarm display function so that when a circuit breaker trips due to a short circuit accident, its operation state can be directly visually confirmed from outside the panel. To do.

上記目的を達成するために、本発明によれば、配電盤、制御盤パネルに取付けて盤内に設置した回路遮断器のハンドルを盤外から開閉操作する外部操作ハンドル装置において、
回路遮断器の付属装置として遮断器本体ケースの側面に装着した短絡警報接点ユニットに装備のトリップ表示ボタンに連繋し、短絡事故による回路遮断器のトリップ動作時にその動作状態を盤外に警報表示する短絡トリップ表示手段を備える（請求項１）ものとし、そのトリップ表示手段は具体的に次記のような態様で構成する。
（１）前記の短絡トリップ表示手段として、短絡警報接点ユニットのトリップ表示ボタンに連動して外部装置ハンドル装置の取付ベースから前方に出没するトリップ表示ピンを設ける（請求項２）。
（２）前記の短絡トリップ表示手段として、短絡警報接点ユニットのトリップ表示ボタンに連動して外部操作ハンドル装置の取付ベースに形成した表示窓に出没する回動式のトリップ表示レバーを設ける（請求項３）。 In order to achieve the above object, according to the present invention, in an external operation handle device that opens and closes the handle of a circuit breaker attached to a switchboard and a control panel panel and installed in the panel from the outside of the panel,
Connected to the trip display button on the short-circuit alarm contact unit mounted on the side of the circuit breaker body case as an accessory device of the circuit breaker, and when the circuit breaker trips due to a short-circuit accident, the operation status is displayed on the outside of the panel Short trip display means is provided (claim 1), and the trip display means is specifically configured in the following manner.
(1) As the short-circuit trip display means, a trip display pin protruding and projecting forward from the mounting base of the external device handle device is provided in conjunction with the trip display button of the short-circuit alarm contact unit.
(2) As the short-circuit trip display means, there is provided a rotary trip display lever that appears and disappears in a display window formed on the mounting base of the external operation handle device in conjunction with the trip display button of the short-circuit alarm contact unit. 3).

上記の構成によれば、配電盤，制御盤のパネル前面に取付けた外部操作ハンドル装置において、盤内に設置した回路遮断器が短絡事故でトリップ動作した場合にその動作状態を盤外から直接目視確認することが可能であり、これによりトリップ動作の原因の特定，現場作業者への警告など、安全性の向上に寄与することができる。しかも、構造的にも在来の外部操作ハンドル装置に僅かな部品（表示ピン，表示レバー）を追加装備するだけで容易に対応できる。   According to the above configuration, when the circuit breaker installed in the panel trips due to a short-circuit accident in the external operation handle device mounted on the front panel of the switchboard or control panel, the operation status is visually confirmed directly from outside the panel. As a result, it is possible to contribute to the improvement of safety, such as the identification of the cause of the trip operation and the warning to the field worker. In addition, structurally, the conventional external operation handle device can be easily accommodated by adding a few components (display pins, display levers).

以下、本発明の実施の形態を図１〜図３、および図４，図５に示す実施例に基づいて説明する。なお図示実施例において、図６に対応する部材には同じ符号を付してその説明は省略する。   Hereinafter, embodiments of the present invention will be described based on the examples shown in FIGS. 1 to 3 and FIGS. 4 and 5. In the illustrated embodiment, the members corresponding to those in FIG.

まず、本発明の請求項２に係わる実施例を図１〜図３で説明する。この実施例では、配電盤，制御盤の盤内に設置した回路遮断器１に対して、外部操作ハンドル装置１１を盤パネル１２に取付けて回路遮断器１のハンドル３に連結し、かつ回路遮断器１の側面には図７で述べたトリップ表示ボタン付きの短絡警報接点ユニット４を装着している。ここで、回路遮断器１の短絡トリップ表示手段として、外部操作ハンドル装置１１には短絡警報接点ユニット４のトリップ表示ボタン５に連繋して盤外に出没するトリップ表示ピン１３が追加装備されている。   First, an embodiment according to claim 2 of the present invention will be described with reference to FIGS. In this embodiment, an external operation handle device 11 is attached to a panel 12 and connected to the handle 3 of the circuit breaker 1 with respect to the circuit breaker 1 installed in the panel of the switchboard and control panel. The short-circuit alarm contact unit 4 with the trip display button described in FIG. Here, as a short-circuit trip display means of the circuit breaker 1, the external operation handle device 11 is additionally equipped with a trip display pin 13 which is connected to the trip display button 5 of the short-circuit alarm contact unit 4 and goes out of the panel. .

すなわち、外部操作ハンドル装置１１は、取付ベース１１ａ，ロータリー式のハンドル把手１１ｂ，化粧パネル１１ｃ，インターロックプレート１１ｄの組立体からなり、盤パネル１２への取付位置でハンドル把手１１ｂを回路遮断器１のハンドル３に連結している。また、外部操作ハンドル装置１１の取付ベース１１ａにはピン支持ガイド１１ｅが設けてあり、ここに案内支持した棒状のトリップ表示ピン１３の先端が取付ベース１１ａ，化粧パネル１１ｃに形成したピン挿通穴を通して盤外へ出没可能に保持し、かつこの位置でトリップ表示ピン１３の後端を短絡警報接点ユニット４に装備したトリップ表示ボタン５の先端に例えば圧入して連結している。なお、トリップ表示ピン１３はトリップ表示ボタン５に圧入連結する代わりに、トリップ表示ボタン５に向けてばね付勢するようにしてもよい。また、図２で１１ｆはハンドル把手１１ｂの周域に対向して化粧パネル１１ｃの表面に貼着したハンドル操作位置の表示板、１１ｇは化粧パネル１１ｃの締結ねじである。   That is, the external operation handle device 11 comprises an assembly of an attachment base 11a, a rotary handle handle 11b, a decorative panel 11c, and an interlock plate 11d. The handle handle 11b is connected to the circuit breaker 1 at the attachment position to the panel panel 12. The handle 3 is connected. Further, the mounting base 11a of the external operation handle device 11 is provided with a pin support guide 11e, and the tip of the rod-shaped trip display pin 13 guided and supported here passes through a pin insertion hole formed in the mounting base 11a and the decorative panel 11c. At this position, the rear end of the trip display pin 13 is press-fitted and connected to the front end of the trip display button 5 provided in the short-circuit alarm contact unit 4. The trip display pin 13 may be spring-biased toward the trip display button 5 instead of being press-fitted and connected to the trip display button 5. In FIG. 2, 11f is a handle operating position display plate affixed to the surface of the decorative panel 11c so as to face the peripheral area of the handle grip 11b, and 11g is a fastening screw of the decorative panel 11c.

次に、前記したトリップ表示ピン１３の表示動作を図３（ａ），（ｂ）により説明する。なお、図３（ａ）は回路遮断器が短絡トリップした状態、図３（ｂ）は定常時の状態を表している。すなわち、定常時には短絡警報接点ユニット４のトリップ表示ボタン５に連結したトリップ表示ピン１３の先端が化粧パネル１１ｂの表面から殆ど突き出さないような位置に静止して待機している（図３（ｂ）参照）。ここで、回路遮断器１が短絡電流を検知してトリップ動作すると、図８で述べたように短絡警報接点ユニット４のトリップ表示ボタン５が突き出し、この突き出し動作に連動して外部操作ハンドル装置１１に設けたトリップ表示ピン１３が化粧パネル１１ｃの前方に突き出して盤外に警報表示する（図３（ａ）参照）。   Next, the display operation of the trip display pin 13 will be described with reference to FIGS. 3A shows a state in which the circuit breaker has short-circuited and FIG. 3B shows a state in a steady state. In other words, during a steady state, the tip of the trip display pin 13 connected to the trip display button 5 of the short-circuit alarm contact unit 4 stands still at a position where it hardly protrudes from the surface of the decorative panel 11b (FIG. 3B). )reference). Here, when the circuit breaker 1 detects a short-circuit current and performs a trip operation, the trip display button 5 of the short-circuit alarm contact unit 4 projects as described in FIG. 8, and the external operation handle device 11 interlocks with the projecting operation. The trip display pin 13 provided on the side protrudes in front of the decorative panel 11c and displays an alarm outside the panel (see FIG. 3A).

これにより、配電盤，制御盤の扉を閉じたままの状態でも盤外から回路遮断器１が短絡トリップ動作したことを目視確認することができる。   Thereby, it is possible to visually confirm that the circuit breaker 1 has performed a short-circuit trip operation from outside the panel even when the switchboard and control panel doors are closed.

次に、先記実施例１の応用実施例として本発明の請求項３に係わる実施例を図４，図５で説明する。この実施例では、回路遮断器１の短絡トリップ表示手段として、外部操作ハンドル装置１１には先記実施例１で述べたトリップ表示ピン１３に代えて回動式のトリップ表示レバー１４を備えている。このトリップ表示レバー１４は、支軸１４ａを外部操作ハンドル装置１１の取付ベース１１ａに回動自在に軸支した上で、付勢ばね（例えば、捩じりコイルばね）で反時計方向に付勢し、レバーの一端を短絡警報接点ユニット４のトリップ表示ボタン５に押し当てている。また、レバーの他端側に形成した表示面１４ｂは着色（例えば赤色）を施し、取付ベース１１ａ，化粧パネル１１ｃに開口した表示窓穴（角穴）１１ｈを通じて前方へ覗くように出没可能に配置されている。   Next, as an application example of the first embodiment, an embodiment according to claim 3 of the present invention will be described with reference to FIGS. In this embodiment, as the short-circuit trip display means of the circuit breaker 1, the external operation handle device 11 is provided with a rotary trip display lever 14 in place of the trip display pin 13 described in the first embodiment. . The trip display lever 14 is urged counterclockwise by an urging spring (for example, a torsion coil spring) after the support shaft 14a is pivotally supported on the mounting base 11a of the external operation handle device 11. One end of the lever is pressed against the trip display button 5 of the short-circuit alarm contact unit 4. Further, the display surface 14b formed on the other end of the lever is colored (for example, red), and is arranged so as to be able to appear and look forward through the display window hole (square hole) 11h opened in the mounting base 11a and the decorative panel 11c. Has been.

上記の構成で、回路遮断器１の定常状態では図４（ａ）で示すようにトリップ表示レバー１４の表示面１４ｂが表示窓穴１１ｈから外れた位置に静止して待機している。ここで、回路遮断器１が短絡電流を検知してトリップ動作すると、短絡警報接点ユニット４のトリップ表示ボタン５が突き出し、この突き出し動作に連動して前記のトリップ表示レバー１４が時計方向に回動し、図４（ｂ）で示すように先端の表示面１４ｂが表示窓穴１１ｈの背後に移動する。これにより、実施例１と同様に配電盤，制御盤の盤外から回路遮断器１が短絡トリップ動作したことを目視確認することができる。   With the above configuration, in the steady state of the circuit breaker 1, as shown in FIG. 4A, the display surface 14b of the trip display lever 14 stands still and stands by at a position away from the display window hole 11h. Here, when the circuit breaker 1 detects a short-circuit current and performs a trip operation, the trip display button 5 of the short-circuit alarm contact unit 4 protrudes, and the trip display lever 14 rotates clockwise in conjunction with the protrusion operation. Then, as shown in FIG. 4B, the display surface 14b at the tip moves behind the display window hole 11h. Thereby, it is possible to visually confirm that the circuit breaker 1 has been short-circuit trip-operated from the outside of the switchboard and the control panel as in the first embodiment.

本発明の第１実施例に係わる外部操作ハンドル装置を回路遮断器に連結した使用状態の側視端面図The side view end view of the use state which connected the external operation handle apparatus concerning 1st Example of this invention to the circuit breaker 図１の平面図Plan view of FIG. 図１の外部操作ハンドル装置に備えたトリップ表示ピンの動作説明図で、（ａ），（ｂ）はそれぞれ回路遮断器の短絡トリップ状態、定常状態に対応するトリップ表示ピンの動作位置を表す図FIG. 2 is an operation explanatory diagram of a trip display pin provided in the external operation handle device of FIG. 1, and (a) and (b) are diagrams showing an operation position of a trip display pin corresponding to a short circuit trip state and a steady state of a circuit breaker, respectively. 本発明の第１実施例に係わる外部操作ハンドル装置のトリップ表示レバーの動作説明図で、（ａ），（ｂ）はそれぞれ回路遮断器の定常状態，短絡トリップ状態に対応するトリップ表示レバーの動作位置を表す図FIG. 3 is an explanatory diagram of the operation of the trip display lever of the external operation handle device according to the first embodiment of the present invention, wherein (a) and (b) are the operations of the trip display lever corresponding to the steady state and the short circuit trip state of the circuit breaker, respectively Figure representing position 図４（ａ）を異なる方向から見た構成図で、（ａ）は側視端面図、（ｂ）は平面図FIG. 4A is a configuration diagram of FIG. 4A viewed from different directions, where FIG. 4A is a side view and FIG. 回路遮断器の側面に短絡警報接点ユニットを装着した状態の外観図で、（ａ），（ｂ）はそれぞれ平面図および側面図It is an external view of the state where the short circuit alarm contact unit is mounted on the side of the circuit breaker. (A) and (b) are a plan view and a side view, respectively. 回路遮断器に搭載した開閉機構，過電流引外し装置の組立構造を表す図Diagram showing assembly structure of switching mechanism and overcurrent tripping device mounted on circuit breaker 図７の回路遮断器に装備したトリップ操作板と短絡警報表示接点ユニットのトリップ表示ボタンとの連繋構造を表す図The figure showing the connection structure of the trip operation board with which the circuit breaker of FIG. 7 was equipped, and the trip display button of a short circuit alarm display contact unit

符号の説明Explanation of symbols

１ 回路遮断器
３ 回路遮断器のハンドル
４ 短絡警報接点ユニット
５ 短絡警報接点ユニットのトリップ表示ボタン
６ 回路遮断器の開閉機構
８ 電磁式の瞬時引外し装置
９ トリップ操作板
１１ 外部操作ハンドル装置
１１ａ 取付ベース
１１ｂ ハンドル把手
１１ｃ 化粧パネル
１１ｅ ピン支持ガイド
１１ｈ 表示窓穴
１２ 配電盤，制御盤のパネル
１３ トリップ表示ピン
１４ トリップ表示レバー
１４ａ 支軸
１４ｂ 表示面 DESCRIPTION OF SYMBOLS 1 Circuit breaker 3 Circuit breaker handle 4 Short circuit alarm contact unit 5 Trip display button of short circuit alarm contact unit 6 Circuit breaker switching mechanism 8 Electromagnetic instantaneous trip device 9 Trip operation plate 11 External operation handle device 11a Installation Base 11b Handle grip 11c Decorative panel 11e Pin support guide 11h Display window hole 12 Switchboard and control panel panel 13 Trip display pin 14 Trip display lever 14a Support shaft 14b Display surface

Claims (3)

配電盤、制御盤のパネルに取付けて盤内に設置した回路遮断器のハンドルを盤外から開閉操作する回路遮断器の外部操作ハンドル装置において、
回路遮断器の付属装置として遮断器本体ケースの側面に装着した短絡警報接点ユニットのトリップ表示ボタンに連繋し、短絡事故による回路遮断器のトリップ動作時にその動作状態を盤外に警報表示する短絡トリップ表示手段を備えたことを特徴とする回路遮断器の外部操作ハンドル装置。 In the external operation handle device of the circuit breaker that opens and closes the handle of the circuit breaker installed in the panel of the switchboard and control panel from the outside of the panel,
Short circuit trip that is connected to the trip display button of the short circuit alarm contact unit attached to the side of the circuit breaker body case as an accessory device of the circuit breaker, and displays the operation status outside the panel when the circuit breaker trips due to a short circuit accident An external operation handle device for a circuit breaker comprising a display means. 請求項１に記載の外部操作ハンドル装置において、その短絡トリップ表示手段として、短絡警報接点ユニットのトリップ表示ボタンに連動して外部装置ハンドル装置の取付ベースから前方に出没するトリップ表示ピンを設けたことを特徴とする回路遮断器の外部操作ハンドル装置。 The external operation handle device according to claim 1, wherein a trip display pin that protrudes forward and backward from the mounting base of the external device handle device is provided as a short-circuit trip display means in conjunction with a trip display button of the short-circuit alarm contact unit. An external operation handle device for a circuit breaker. 請求項１に記載外部操作ハンドル装置において、その短絡トリップ表示手段として、短絡警報接点ユニットのトリップ表示ボタンに連動して外部操作ハンドル装置の取付ベースに形成した表示窓に出没する回動式のトリップ表示レバーを設けたことを特徴とする回路遮断器の外部操作ハンドル装置。 2. The external operation handle device according to claim 1, wherein as a short-circuit trip display means, a rotary trip that appears and disappears in a display window formed on a mounting base of the external operation handle device in conjunction with a trip display button of a short-circuit alarm contact unit. An external operation handle device for a circuit breaker, comprising a display lever.
JP2006348922A 2006-12-26 2006-12-26 External circuit handle device for circuit breaker Expired - Fee Related JP4867644B2 (en)

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CN101645377B (en) * 2008-08-05 2012-07-18 富士电机机器制御株式会社 Circuit breaker and handle lock device thereof
CN104051168A (en) * 2013-03-15 2014-09-17 洛克威尔自动控制技术股份有限公司 Switch assembly for disconnect operator
JP2014229610A (en) * 2013-05-21 2014-12-08 エルエス産電株式会社Lsis Co., Ltd. Coupling device for circuit breaker
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JP2005149918A (en) * 2003-11-17 2005-06-09 Fuji Electric Fa Components & Systems Co Ltd External operating handle device of circuit breaker

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101645377B (en) * 2008-08-05 2012-07-18 富士电机机器制御株式会社 Circuit breaker and handle lock device thereof
CN104051168A (en) * 2013-03-15 2014-09-17 洛克威尔自动控制技术股份有限公司 Switch assembly for disconnect operator
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JP2014229610A (en) * 2013-05-21 2014-12-08 エルエス産電株式会社Lsis Co., Ltd. Coupling device for circuit breaker
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KR20220091061A (en) * 2020-12-23 2022-06-30 엘에스일렉트릭(주) Manual Motor Starter
KR102453179B1 (en) 2020-12-23 2022-10-11 엘에스일렉트릭(주) Manual Motor Starter

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