KR20010036566A - device for driving MOC in vacuum type circuit breaker - Google Patents

device for driving MOC in vacuum type circuit breaker Download PDF

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Publication number
KR20010036566A
KR20010036566A KR1019990043634A KR19990043634A KR20010036566A KR 20010036566 A KR20010036566 A KR 20010036566A KR 1019990043634 A KR1019990043634 A KR 1019990043634A KR 19990043634 A KR19990043634 A KR 19990043634A KR 20010036566 A KR20010036566 A KR 20010036566A
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South Korea
Prior art keywords
moc
push rod
circuit breaker
breaker
lever
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KR1019990043634A
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Korean (ko)
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KR100351880B1 (en
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유치용
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이종수
엘지산전 주식회사
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Priority to KR1019990043634A priority Critical patent/KR100351880B1/en
Publication of KR20010036566A publication Critical patent/KR20010036566A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/46—Interlocking mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Abstract

PURPOSE: A vacuum breaker mechanism operated cell switch(MOC) driving apparatus is provided to improve the stable operation and to provide the easy maintenance by moving the MOC operation axis along the linear axis. CONSTITUTION: The vacuum breaker MOC driving apparatus comprises a hinge pin(12), a transfer lever(11) for rotating eccentrically with respect to the hinge pin, and a prolonged part(11a). The MOC(14) is connected to a bracket(13) and a push rod(16) for moving the MOC operation axis(15) connected to the lower part of the MOC operation axis. The guider(17) moves the push rod upwardly or downwardly. An adjust bolt(18) is connected to the push rod to adjust the operation stroke of the operation axis. A rotate cam(19) is connected to the lower part of the push rod, and a connection rod(20) is fixed to the rotate cam. A linker(21) is connected between the prolonged part and the connection rod.

Description

진공차단기의 엠오씨(ＭＯＣ) 구동장치{device for driving MOC in vacuum type circuit breaker}Device for driving MOC in vacuum type circuit breaker

본 발명은 진공차단기내에 설치되어 진공차단기 운전위치에서 온/오프 동작을 행할 때 진공차단기의 메카니즘(Mechanism) 동작과 연계되어 온/오프 동작을 하면서 진공차단기의 동작 상태를 램프의 점등으로 표시하거나 또는 다른기기로 신호를 보내 인터록킹을 하는 등의 목적으로 사용되는 엠오씨(MOC : Mechanism Operated Cell switch)(이하 ″MOC″라 칭함) 구동장치에 관한 것이다.The present invention is installed in the vacuum circuit breaker when the on / off operation in the operating position of the vacuum circuit breaker in conjunction with the mechanism (mechanism) operation of the vacuum circuit breaker while the on / off operation to display the operation state of the vacuum circuit breaker by the lighting of the lamp or MEC (Mechanism Operated Cell Switch) (hereinafter referred to as "MOC") driving device used for the purpose of interlocking by sending a signal to another device.

일반적으로 진공차단기는 고전압 대용량의 전류를 차단하는데 필요한 전기기기로서, 차단기가 운전중인 상태에서는 안전을 위해 차단기가 운전중임을 나타내 주는 표시장치가 필요하다.In general, a vacuum circuit breaker is an electrical device required to cut off a high-voltage large current, and a display device indicating that the circuit breaker is in operation is required for safety while the circuit breaker is in operation.

또한 상기와 같은 운전표시 장치로 MOC 또는 차단기 내부의 보조 스위치 접점을 사용할 수 있으나, 보조 스위치는 차단기의 운전위치뿐만 아니라 인출위치에서도 동작한다는 점 때문에 신뢰성이 요구되는 장소, 예를 들어 발전소나 대형 공장 등에서는 통상 MOC를 사용한다.In addition, although the auxiliary switch contact inside the MOC or the breaker may be used as the operation display device as described above, the auxiliary switch operates at the drawing position as well as the operation position of the breaker, for example, a power plant or a large factory. Etc., MOC is usually used.

도 1은 종래 진공차단기의 구성도로서 힌지핀(2)을 중심으로 회전운동을 하는 차단기의 변환레버(1)에 작동레버(3)가 볼트에 의해 일체형으로 고정되어 있고 MOC(4)는 MOC 서포터(6)에 의해 지지되어 있으며, MOC 레버(5)는 도면상 상기 작동레버(3)의 일측 끝단 상부에 위치되어 있다.1 is a block diagram of a conventional vacuum circuit breaker, and an operating lever 3 is integrally fixed by a bolt to a conversion lever 1 of a circuit breaker which rotates about a hinge pin 2, and the MOC 4 is a MOC. Supported by the supporter 6, the MOC lever 5 is located above the one end of the actuating lever (3) in the drawing.

따라서 차단기가 투입되면 주접점(7)이 접속되어 인입측과 부하측이 통전됨과 동시에 변환레버(1)와 작동레버(3)가 힌지핀(2)을 축으로 도면상 시계방향의 회전을 하게 되고 작동레버(3)의 회전에 따라 MOC 레버(5)가 도면상 상방으로 구동하여 MOC(4) 내부의 접점을 변환시키게 된다.Therefore, when the breaker is closed, the main contact point 7 is connected, the inlet side and the load side are energized, and the conversion lever 1 and the operating lever 3 rotate clockwise in the drawing on the hinge pin 2 axis. As the operating lever 3 rotates, the MOC lever 5 is driven upward in the drawing to convert the contacts inside the MOC 4.

그러나 상기와 같은 종래의 진공차단기는 차단기가 투입될 때 작동레버(3)에 충격으로 인한 떨림 현상이 발생하게 되며, 이와 같은 떨림 현상에 의해 작동레버(3)가 상방으로 회전했다가 그대로 정지하지 못하고 일단 하방으로 후퇴한 후 다시 정상 위치로 복귀하는 현상이 발생하게 되는 경우가 있다.However, in the conventional vacuum circuit breaker as described above, when the breaker is input, a vibration phenomenon occurs due to the impact on the operation lever 3, and the operation lever 3 rotates upward and stops as it is. There is a case where the phenomenon of retreating downward and then returning to the normal position once occurs.

상기와 같은 경우 MOC 레버(5)도 작동레버(3)의 영향을 받게되므로 MOC(4)의 접점이 순간적으로 개리되었다가 다시 접촉되는 현상이 발생하게 되고, 이때 회로가 끊김으로 인해 각 부분의 기기에 오동작이 일어나게 되는 문제가 있다.In this case, the MOC lever 5 is also affected by the operation lever 3, so that the contact point of the MOC 4 is temporarily opened and then contacted again. There is a problem that a malfunction occurs in the device.

또한 상기와 같은 종래의 진공차단기는 작동레버(3)와 MOC(4)가 차단기의 안쪽으로 설치되어 있기 때문에 차단기를 인출하지 않고는 MOC(4)의 동작 상태를 확인 점검할 수 없고 유지 보수가 어려운 문제도 있다.In addition, since the operation lever 3 and the MOC 4 are installed inside the breaker, the conventional vacuum breaker as described above cannot check and check the operation state of the MOC 4 without drawing out the breaker, and maintenance is prevented. There is also a difficult problem.

본 발명의 목적은 작동레버에 의해 MOC 레버를 회전시켜 구동하는 종래 장치와는 달리 MOC의 동작축을 직선 이동시켜 구동할 수 있게 함으로서 동작의 안정성을 향상시키고 유지보수가 용이해지도록 한 것이다.An object of the present invention is to improve the stability of the operation and to facilitate maintenance by allowing the operation axis of the MOC to be driven by moving linearly, unlike the conventional apparatus for driving by rotating the MOC lever by the operating lever.

상기 목적을 달성하기 위한 본 발명의 실시예에 따라 차단기 투입시 힌지핀을 중심으로 회전하는 변환레버와, 상기 차단기의 일측에 설치되고 직선 이동형 동작축을 가진 MOC와, 상기 MOC의 동작축을 이동시키는 푸시로드와 상기 푸시로드와 변환레버 사이에 설치되어 변환레버의 회전력을 푸시로드에 전달하는 동력전달 수단으로 구성된 진공 차단기의 MOC 구동장치가 제공된다.According to an embodiment of the present invention for achieving the above object, the converter is rotated around the hinge pin when the breaker is inserted, the MOC is installed on one side of the breaker and has a linear movement axis, push to move the operation axis of the MOC The MOC driving apparatus of the vacuum circuit breaker is provided between the rod and the push rod and the conversion lever and configured as a power transmission means for transmitting the rotational force of the conversion lever to the push rod.

도 1은 종래 장치를 나타낸 진공차단기의 구성도1 is a block diagram of a vacuum circuit breaker showing a conventional device

도 2는 본 발명 장치를 나타낸 진공차단기의 구성도Figure 2 is a block diagram of a vacuum circuit breaker showing the device of the present invention

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

11 : 변환레버 11a : 연장부11: conversion lever 11a: extension part

12 : 힌지핀 14 : MOC12: hinge pin 14: MOC

15 : 동작축 16 : 푸시로드15: motion axis 16: push rod

17 : 가이드 18 : 조정볼트17: guide 18: adjusting bolt

19 : 회전캠 20 : 연결로드19: rotating cam 20: connecting rod

21 : 링크21: link

도 2는 본 발명 장치를 나타낸 회로 차단기의 구성도이다.2 is a block diagram of a circuit breaker showing the device of the present invention.

차단기에 힌지핀(12)을 중심으로 회전하는 변환레버(11)가 설치되어 있고 상기 변환레버(11)에는 차단기측으로 연장된 연장부(11a)가 형성되어 있다.The breaker is provided with a conversion lever 11 which rotates around the hinge pin 12, and the conversion lever 11 has an extension portion 11a extending toward the breaker side.

MOC(14)는 차단기의 일측면에 설치된 브라켓(13)에 고정되어 있고 MOC의 접점을 변환시키는 동작축(15) 하부에는 동작축(15)을 구동시키기 위한 푸시로드(16)가 가이드(17)에 안내되면서 승,하강 운동을 할 수 있게 설치되어 있다.The MOC 14 is fixed to the bracket 13 installed on one side of the breaker, and the push rod 16 for driving the operating shaft 15 is guided below the operating shaft 15 for converting the contact point of the MOC. ) Is installed to be able to exercise up and down.

또한 상기 푸시로드(16)에는 동작축(15)의 동작 스트로크를 조절하기 위한 조정볼트(18)가 결합되어 있다.In addition, the push rod 16 is coupled to the adjustment bolt 18 for adjusting the operating stroke of the operating shaft (15).

상기 푸시로드(16)의 하부에는 반달형으로된 회전캠(19)이 설치되어 있고 이 회전캠(19)에 연결로드(20)가 일체형으로 고정되어 있으며, 상기 변환레버(11)의 연장부(11a)와 연결로드(20) 사이에는 링크(21)가 결합되어 있다.The lower portion of the push rod 16 is provided with a rotary cam 19 having a half moon shape, and the connecting rod 20 is integrally fixed to the rotary cam 19, and an extension part of the conversion lever 11 is provided. The link 21 is coupled between 11a and the connecting rod 20.

상기와 같이 된 진공 차단기는 차단기가 투입되지 않은 상태에서는 도 2와 같이 주접점(2)이 개리되어 있고 MOC(14)의 동작축(15)이 눌러지지 않은 상태로 있게 된다.In the vacuum circuit breaker as described above, the main contact point 2 is opened as shown in FIG. 2 and the operating shaft 15 of the MOC 14 is not pressed as shown in FIG. 2.

이와 같은 상태에서 차단기를 투입하면 변환레버(11)가 힌지핀(12)을 중심으로 도면상 시계방향으로 회전을 하여 주접점(7)에 접속됨과 동시에 변환레버(11)의 연장부(11a)와 연결로드(20) 사이에 결합된 링크(21)는 변환레버(11)의 회전에 따라 하강을 하게 된다.When the breaker is put in such a state, the conversion lever 11 is rotated in the clockwise direction about the hinge pin 12 to be connected to the main contact point 7, and at the same time, the extension part 11a of the conversion lever 11 is provided. And the link 21 coupled between the connecting rod 20 is lowered according to the rotation of the conversion lever 11.

상기와 같이 링크(21)가 하강을 하면 연결로드(20)와 일체형으로 고정된 회전캠(19)이 도면상 반시계 방향으로 회전운동을 하면서 푸시로드(16)를 도면상 상방으로 밀어올려 푸시로드(16)가 이동을 하게 되고 푸시로드(16)가 상방으로 이동하면 MOC(14)의 동작축(15)이 푸시로드(16)에 의해 눌려지면서 상방으로 이동하여 MOC(14)의 접점을 변환시키게 된다.As described above, when the link 21 descends, the rotary cam 19 integrally fixed to the connecting rod 20 pushes and pushes the push rod 16 upward in the drawing while rotating in the counterclockwise direction. When the rod 16 moves and the push rod 16 moves upward, the operating shaft 15 of the MOC 14 is pushed upward by the push rod 16 to move the contact point of the MOC 14. Will be converted.

이때 푸시로드(16)는 가이드(17)에 안내되면서 수직으로 이동을 하게 되고 조정볼트(18)를 풀고 조임에 따라 동작축(15)의 스트로크를 조절하여 MOC(14)를 원활하게 구동시킬 수 있다.At this time, the push rod 16 is vertically moved while being guided to the guide 17, and the MOC 14 can be smoothly driven by adjusting the stroke of the operation shaft 15 by loosening and tightening the adjusting bolt 18. have.

본 발명은 동작 레버를 회전시켜 MOC를 구동하는 종래 장치와는 달리 회전캠에 의해 푸시로드를 직선 이동시켜 MOC를 구동하는 구조이어서 MOC를 안정적으로 구동시킬 수 있고 MOC 접점의 순간적 개리에 의해 기기의 오동작을 방지할 수 있게 되며, MOC가 차단기 측면에 설치됨에 따라 차단기를 인출하지 않고도 동작상태를 확인 점검할 수 있음은 물론 유지 보수가 용이해지는 효과가 있다.The present invention has a structure in which the push rod is linearly moved by the rotary cam to drive the MOC, unlike the conventional apparatus that rotates the operation lever to drive the MOC, so that the MOC can be stably driven and the momentary opening of the MOC contact The malfunction can be prevented, and as the MOC is installed on the side of the breaker, the operation state can be checked and checked without withdrawing the breaker, and the maintenance is easy.

Claims (4)

차단기 투입시 힌지핀(12)을 중심으로 회전하는 변환레버(11)와, 상기 차단기의 일측에 설치되고 직선 이동형 동작축(15)을 가진 MOC(14)와, 상기 MOC의 동작축을 이동시키는 푸시로드(16)와, 상기 푸시로드와 변환레버 사이에 설치되어 변환레버의 회전력을 푸시로드에 전달하는 동력 전달수단으로 구성된 것을 특징으로 하는 진공차단기의 엠오씨(MOC) 구동장치.When the breaker is inserted, the conversion lever 11 rotating about the hinge pin 12, the MOC 14 installed on one side of the breaker and having a linear movement shaft 15, and a push to move the operation shaft of the MOC. A rod (16) and the MOC (MOC) driving device of the vacuum circuit breaker, characterized in that it is provided between the push rod and the conversion lever is composed of a power transmission means for transmitting the rotational force of the conversion lever to the push rod. 제 1 항에 있어서, 상기 동력전달 수단은 변환레버(11)의 일측 연장부(11a)에 연결되어 변환레버의 회전에 따라 승,하강 운동을 하는 링크(21)와, 상기 링크와 연결로드(20)에 의해 연결되어 링크의 승,하강 운동에 따라 회전하면서 푸시로드(16)를 이동시키는 회전캠(19)으로 구성된 진공차단기의 엠오씨(MOC) 구동장치.According to claim 1, wherein the power transmission means is connected to one side extending portion (11a) of the conversion lever 11, the link 21 for moving up and down in accordance with the rotation of the conversion lever, and the link and the connecting rod ( 20 is connected to the drive of the MMC (MOC) of the vacuum circuit breaker consisting of a rotary cam 19 to move the push rod 16 while rotating in accordance with the up and down movement of the link. 제 1 항에 있어서, 상기 푸시로드(16)는 가이드(17)에 의해 안내되면서 이동되게 한 진공차단기의 엠오씨(MOC) 구동장치.The MOC (MOC) driving device of the vacuum circuit breaker of claim 1, wherein the push rod (16) is guided and moved by a guide (17). 제 1 항에 있어서, 상기 푸시로드(16)에 조정볼트(18)를 결합하여 동작축의 스트로크를 조절할 수 있게 한 진공차단기의 엠오씨(MOC) 구동장치.2. The MOC driving device of the vacuum circuit breaker according to claim 1, wherein an adjustment bolt (18) is coupled to the push rod (16) to adjust the stroke of the operating shaft.
KR1019990043634A 1999-10-09 1999-10-09 device for driving MOC in vacuum type circuit breaker KR100351880B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459480B1 (en) * 2002-09-30 2004-12-03 엘지산전 주식회사 Interlock apparatus of vacuum circuit breaker
EP2728599A1 (en) * 2012-10-30 2014-05-07 LSIS Co., Ltd. Mechanically operated cell switch of vacuum circuit breaker
KR20180051834A (en) * 2016-11-09 2018-05-17 엘에스산전 주식회사 molded case circuit breaker
KR20200111478A (en) * 2019-03-19 2020-09-29 엘에스일렉트릭(주) Moc operating apparatus and vacuum circuit breaker having the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459480B1 (en) * 2002-09-30 2004-12-03 엘지산전 주식회사 Interlock apparatus of vacuum circuit breaker
EP2728599A1 (en) * 2012-10-30 2014-05-07 LSIS Co., Ltd. Mechanically operated cell switch of vacuum circuit breaker
US9136076B2 (en) 2012-10-30 2015-09-15 Lsis Co., Ltd. Mechanically operated cell switch of vacuum circuit breaker
KR20180051834A (en) * 2016-11-09 2018-05-17 엘에스산전 주식회사 molded case circuit breaker
CN108063077A (en) * 2016-11-09 2018-05-22 Ls 产电株式会社 For the mutual interlocking gear of breaker
US10389093B2 (en) 2016-11-09 2019-08-20 Lsis Co., Ltd. Interlocking mechanism for circuit breaker
KR20200111478A (en) * 2019-03-19 2020-09-29 엘에스일렉트릭(주) Moc operating apparatus and vacuum circuit breaker having the same

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