KR880000761Y1 - Control circuit - Google Patents

Control circuit Download PDF

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Publication number
KR880000761Y1
KR880000761Y1 KR2019820007872U KR820007872U KR880000761Y1 KR 880000761 Y1 KR880000761 Y1 KR 880000761Y1 KR 2019820007872 U KR2019820007872 U KR 2019820007872U KR 820007872 U KR820007872 U KR 820007872U KR 880000761 Y1 KR880000761 Y1 KR 880000761Y1
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South Korea
Prior art keywords
switch
relay
closing
contact
coil
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KR2019820007872U
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Korean (ko)
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KR840002448U (en
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미노루 나까하다
게이지 고바야시
다다오 하세가와
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미쓰비시전기 주식회사
카다야마 히도하지로
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere

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  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

내용 없음.No content.

Description

제어회로Control circuit

제1도는 종래의 제어장치의 구성을 표시한 회로도.1 is a circuit diagram showing the configuration of a conventional control apparatus.

제2도는 본 고안의 한 실시예를 표시한 회로도.2 is a circuit diagram showing an embodiment of the present invention.

제3도는 본 고안의 다른 실시예의 구성의 일부를 표시한 회로도.3 is a circuit diagram showing a part of the configuration of another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

3 : 투입코일 4 : 반복동작방지 계전기3: Input coil 4: Repeated operation prevention relay

4a : 반복동작방지 계전기 상개접점 4b : 반복동작방지계전기 상패접점4a: Repeated anti-relay relay contact 4b: Repeated anti-relay relay contact

5b : 보조개폐기 상패접점 7 : 투입스위치5b: Auxiliary switch upper and lower contact point 7: Input switch

본 고안은 스프링, 유압, 공기압(空氣壓) 등의 에너지를 사용하여 동작하는 개폐기 차단기의 제어회로중, 특히 투입회로의 반복동작방지에 관한 것이다.The present invention relates to the prevention of repetitive operation of the control circuit of the switchgear circuit breaker which operates using energy such as spring, hydraulic pressure, pneumatic pressure, and especially the input circuit.

종래에는 이러한 장치로서, 제1도에 표시한 것이 있었다. 도면에 있어, (1)은 스프링 등의 투입에너지(도시없음)를 축적하는 모터(2b)는 에너지 축적완료에 의하여 동작하는 제어스위치 상폐접점, (3)은 축적된 에너지로서 개폐기의 주접점(도시없음)을 투입 동작시키는 투입랫치(도시없음)를 구동시키는 투입코일, (4)는 투입코일의 반복동작을 방지하는 반복동작방지계전기(이하, 계전기라고 한다), (4b)는 이 계전기(4)의 상폐접점, (2a)는 제어스위치 상폐접점(2b)와 연동되어 동작하는 제어스위치 상개접점, (5b)는 개폐기의 주접점과 연동되어 동작하는 보조 개폐기의 상폐접점, (5a)는 보조개페기의 상개접점, (6)은 개폐기 주접점을 트리핑시키기 위한 트리프랫치를 구동시키는 트리프코일, (7)은 투입지령을 부여하는 투입스위치, (8)은 트리핑지령을 부여하는 트리프 스위치이다.Conventionally, such an apparatus has been shown in FIG. In the drawing, reference numeral 1 denotes an upper and lower contact point of a control switch operated by the completion of energy accumulation, and reference numeral 3 denotes a main contact point of the switch as the accumulated energy. An input coil for driving an input latch (not shown) for injecting operation (not shown), (4) denotes a repetitive motion preventing relay (hereinafter referred to as a relay) for preventing the repeating operation of the input coil, and (4b) this relay ( The upper and lower contact point of 4), (2a) is the control switch upper contact point operating in conjunction with the control switch upper and closing contact point (2b), (5b) is the upper and lower contact point of the auxiliary switchgear operating in conjunction with the main contact point of the switch, The upper contact of the auxiliary opening, (6) is the tripping coil for driving the triplatch for tripping the main contactor of the switch, (7) is the closing switch for giving the input command, (8) the tripping switch for giving the tripping command to be.

다음 동작에 대하여 설명한다.The following operation will be described.

상기와 같이 구성된 제어회로의 (A)(B)부에 전압을 인가하면 모터(1)가 동작하여 스프링 등의 투입에너지가 축적하게 된다.When voltage is applied to (A) and (B) of the control circuit configured as described above, the motor 1 operates to accumulate input energy such as a spring.

축적동작이 완료되면, 제어스위치가 동작하여 제어스위치의 상폐접점(2b)이 개로되어 모터(1)을 정지시킴과 동시에 제어스위치의 상개접점(2a)가 폐로되며 투입스위치(7)을 동작시키게 되면 보조개폐기 상폐접점(5b), 제어스위치 상개접점(2a), 계전기(4)의 상폐접점(4b)을 통하여 투입코일(5)에 전류가 흘러서 개폐기의 투입랫치를 구동시켜 개폐기의 주접점을 폐로케 한다.When the accumulation operation is completed, the control switch is operated to open the upper and lower contact points 2b of the control switch to stop the motor 1, and at the same time, the upper contact point 2a of the control switch is closed and the input switch 7 is operated. Then, the current flows through the input coil 5 through the auxiliary switch upper and lower contact point 5b, the control switch upper contact point 2a, and the relay 4 and the upper and lower contact point 4b to drive the closing latch of the switch to open the main contact point of the switch. To be closed.

개폐기의 동작에 의하여 보조개폐기의 상폐접점(5b)이 개로되어 투입코일(3)의 전류를 차단함과 동시에 계전기(4)에 전류를 전류시키며, 계전기(4)를 동작시켜 개전기의 상폐접점(4b)은 개로되며 투입스위치(7)가 동작하고 있는 동안 계전기(4)는 투입코일(3)을 통하여 유지된다. 따라서, 개폐기가 트리프 스위치(8)의 동작에 의하여 트리핑되어 보조개폐기의 상폐접점(5b)이 폐로되어도 투입코일은 계전기를 통한 전류만이 통전되어 개폐의 투입동작이 되지 않아서 반복투입동작은 방지된다.The upper and lower contact points 5b of the auxiliary switchgear are opened by the operation of the switch to cut off the current of the input coil 3 and simultaneously supply the current to the relay 4, and operate the relay 4 to operate the upper and lower contact points of the opener. 4b is opened and the relay 4 is held through the input coil 3 while the input switch 7 is operating. Therefore, even if the switch is tripped by the operation of the trip switch 8 and the upper / close contact 5b of the auxiliary switch is closed, only the current through the relay is energized so that the closing operation is not performed since the closing operation is not performed. do.

그러나, 종래의 제어장치는 상기한 바와 같이 구성되어 있기 때문에 투입 코일에 미소전류가 흐르고 있으므로 계전기와 투입코일의 임피단스의 차이를 매우 크게(예를 들면 10배)두어야만 한다. 또한 투입코일의 최저복귀전압에 제한을 받기 때문에 계전기 선정이 어렵고, 재폐 기능유지 개폐기의 투입랫치복귀가 곤란한 등의 문제가 있었다.However, since the conventional control device is configured as described above, since a small current flows in the input coil, the difference between the impedance of the relay and the input coil must be made very large (for example, 10 times). In addition, there is a problem that it is difficult to select a relay because it is limited by the minimum return voltage of the input coil, and it is difficult to return the input latch of the reopening function maintenance switch.

본 고안은 상기와 같은 종래의 결점을 제거하기 위하여 고안된 것으로서, 개폐기 투입동작 후의 반복동작 방지계전기의 동작으로 투입코일전류를 차단할 수 있는 회로를 가진 제어회로를 제공하는 것이다.The present invention is devised to eliminate the above-mentioned drawbacks, and it is to provide a control circuit having a circuit which can block the input coil current by the operation of the repetitive operation prevention relay after the switch closing operation.

본 고안의 일실시예를 도면에 따라서 설명한다.An embodiment of the present invention will be described with reference to the drawings.

제2도에 있어, (1), (2a), (2b), (3), (4), (5a), (5b), (6), (7), (8)은 제1도에 있어서의 종래의 것과 동일한 것이다. (4a)는 계전기의 상개접점, (4b)는 계전기 상폐접점이다.In FIG. 2, (1), (2a), (2b), (3), (4), (5a), (5b), (6), (7), and (8) are shown in FIG. The same thing as the conventional one. (4a) is an open contact of the relay, and (4b) is a relay normal closing contact.

상기와 같이 구성된 회로에 있어서, (A)(B)에 전압이 인가되면 모터(1)은 종래와 동일하게 에너지를 축적하고, 축적 완료되면 제어스위치의 상폐접점(2b)이 개로되어 모터(1)을 정지시키며, 동시에 제어스위치의 상개접점(2a)은 폐로되어 투입코일회로를 형성한다.In the circuit configured as described above, when a voltage is applied to (A) and (B), the motor 1 accumulates energy as in the prior art, and when the accumulation is completed, the upper / close contact 2b of the control switch is opened so that the motor 1 ), And at the same time, the top contact 2a of the control switch is closed to form the input coil circuit.

이와 같은 조건에 있어서, 투입스위치(7)를 동작시키면, 보조 개폐기의 상폐접점(5b), 제어스위치의 상개접점(2a), 계전기의 상폐접점(4b)를 통하여 투입코일(3)에 전류가 흘러서 투입코일(3)이 동작하여 개폐기가 투입 동작된다. 이 투입동작에 연동하여 보조개폐기의 상폐접점(5b)이 개로되면 투입코일(3)의 전류는 차단되어 계전기(4)가 투입코일(3)을 통하여 동작되며 계전기의 상폐접점(4b)은 개로됨과 동시에 계전기의 상개접점(4a)을 폐로케하고, 투입코일(3)을 단락시켜 투입코일(3)에 흐르고 있는 소전류를 차단시켜 투입스위치(7)의 동작중 계전기(4)를 투입 유지케한다.Under such a condition, when the input switch 7 is operated, current flows into the input coil 3 through the upper and lower contact points 5b of the auxiliary switch, the upper contact point 2a of the control switch, and the upper and lower contact points 4b of the relay. In the flow, the feeding coil 3 is operated so that the switchgear is operated. In conjunction with this closing operation, when the upper and closing contacts 5b of the auxiliary switchgear are opened, the current of the closing coil 3 is cut off so that the relay 4 is operated through the closing coil 3, and the upper and closing contacts 4b of the relay are opened. At the same time, the upper contact 4a of the relay is closed, and the input coil 3 is short-circuited to cut off the small current flowing in the input coil 3 to keep the relay 4 in operation during the operation of the input switch 7. Make it.

이러한 상태에 있어서, 트리프스위치(8)에 의하여 트리프코일(6)이 동작하며 개폐기가 트리핑 동작하여 보조개폐기의 상폐접점(5b)이 폐로케 되어도 계전기의 상폐접점(4b)에 의하여 회로가 차단되어 있기 때문에 투입코일(3)의 회로는 형성되지 않으며 투입스위치(7)를 개로케 하여 재동작시키지 않으면 투입동작은 되지 않는다.In this state, even if the tripping coil 6 is operated by the tripping switch 8 and the switch is tripped to close the upper closing contact 5b of the auxiliary switch, the circuit is closed by the upper closing contact 4b of the relay. Since the circuit of the closing coil 3 is not formed because it is cut off, the closing operation is not performed unless the closing switch 7 is opened and is not operated again.

더우기, 모터(1)은 개폐기의 트리핑 동작에 의하여 제어스위치의 상폐접점(2b)의 복귀에 의하여 에너지 축적을 투입스치(7)의 동작에 관계없이 할 수 있는 것이다.In addition, the motor 1 is capable of accumulating energy regardless of the operation of the input switch 7 by the return of the upper / close contact 2b of the control switch by the tripping operation of the switch.

또한 상기 실시예에서는 계전기 접점에 독립된 상개·상폐접점을 사용하였으나, 제3도에 표시한 바와같이 공통지점을 보유하는 절환 접점을 사용하여도 동등한 효과를 발휘한다. 상기한 바와 같이 본 고안에 의하면 투입코일전류를 반복동작방지계전기의 접점에 의하여 단락시켜 차단하도록 구성하였기 때문에, 항상 투입코일에 소전류가 흐르는 일이 없으며, 또한 계전기 접점이 차단용기를 필요로 하지 않기 때문에 소형의 것을 적용할 수 있을 뿐더러 소형계전기 특유의 절환접점을 유효하게 이용할 수 있는 효과가 있다.In addition, in the above embodiment, independent open / close contact points are used for the relay contacts, but as shown in FIG. 3, the same effect can be obtained by using a switching contact having a common point. As described above, according to the present invention, since the input coil current is short-circuited by the contact of the repetitive operation prevention relay, a small current does not always flow in the input coil, and the relay contact does not require a blocking container. In addition, it is possible to apply a small size and to effectively use a switching contact peculiar to a small relay.

Claims (3)

반복동작방지 계전기(4)와 개폐기 투입코일(3)을 직렬로 접속하고, 개폐기와 연동하는 보조개폐기의 상폐접점(5b)과 반복동작방지 계전기(4)의 상폐접점(4b)을 직렬로 접속시킨 제어접점군을 반복동작방지계전기(4)와 병렬로 접속하고, 반복동작방지 계전기 상개접점(4a)를 개폐기 투입코일(3)과 병렬로 접속하여서 된 제어회로.Connect the repeat operation prevention relay 4 and the switch input coil 3 in series, and connect the upper and closing contact points 5b of the auxiliary switch which interlock with the switch, and the upper and closing contact points 4b of the repeat operation prevention relay 4 in series. A control circuit in which a control contact group is connected in parallel with a repetitive motion prevention relay (4), and a repetitive motion prevention relay upper contact point (4a) is connected in parallel with a switch closing coil (3). 제1항에 있어서, 반복동작 방지 계전기(4)의 상폐 및 상개접점(4b) (4a)를 1조의 절환접점(C접점)으로 구성한 것을 특징으로 하는 제어회로.2. The control circuit according to claim 1, wherein the closing and opening contact (4b) (4a) of the repetitive operation prevention relay (4) are constituted by a pair of switching contacts (C contact). 제1항에 있어서, 반복 동작방지 계전기(4)는 상기 개폐기 투입코일 동작 후 투입코일(3)을 단락시켜 투입코일 전류를 차단하도록 구성시킨 것을 특징으로 하는 제어회로.2. The control circuit according to claim 1, wherein the repetitive operation prevention relay (4) is configured to short the closing coil current by shorting the closing coil (3) after the switch closing coil operation.
KR2019820007872U 1981-10-24 1982-10-07 Control circuit KR880000761Y1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP??56-160105 1981-10-24
JP1981160105U JPS5864021U (en) 1981-10-24 1981-10-24 control circuit

Publications (2)

Publication Number Publication Date
KR840002448U KR840002448U (en) 1984-06-27
KR880000761Y1 true KR880000761Y1 (en) 1988-03-15

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CN111918924A (en) 2018-03-26 2020-11-10 东洋纺株式会社 Polyester resin composition, member for light reflector comprising the same, and light reflector

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JPS54129365A (en) * 1978-03-29 1979-10-06 Mitsubishi Electric Corp Burning preventing circuit for closed coil of switch equipment

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JPS5864021U (en) 1983-04-30
JPH0130754Y2 (en) 1989-09-20
KR840002448U (en) 1984-06-27

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