KR830000464Y1 - Undervoltage trip device for circuit breaker - Google Patents
Undervoltage trip device for circuit breaker Download PDFInfo
- Publication number
- KR830000464Y1 KR830000464Y1 KR2019820010628U KR820010628U KR830000464Y1 KR 830000464 Y1 KR830000464 Y1 KR 830000464Y1 KR 2019820010628 U KR2019820010628 U KR 2019820010628U KR 820010628 U KR820010628 U KR 820010628U KR 830000464 Y1 KR830000464 Y1 KR 830000464Y1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit breaker
- trip device
- movable armature
- ratchet
- undervoltage trip
- Prior art date
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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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
-
- 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
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
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- Breakers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 부족전압 트립장치를 구비한 전자식의 회로 차단기의 개략도.1 is a schematic diagram of an electronic circuit breaker with a conventional undervoltage trip device.
제2도는 본 고안의 부족전압 트립장치를 구비한 전자식의 회로 차단기의 트립상태의 개략도.2 is a schematic diagram of a trip state of an electronic circuit breaker having an undervoltage trip device of the present invention.
제3도는 제2도의 반전레버의 확대도.3 is an enlarged view of the inversion lever of FIG.
제4도는 제2도의 회로 차단기를 부족전압 상태로 복귀할 경우의 개략도.4 is a schematic diagram in the case of returning the circuit breaker of FIG. 2 to an undervoltage condition.
본 고안은, 전자식의 회로 차단기에 내장해서, 회로 전압이 저하 또는 정전되었을 때에, 회로 차단기를 자동적으로 트립시키는 부족전압 트립장치에 관한 것이다.The present invention relates to an undervoltage trip device which is built in an electronic circuit breaker and automatically trips the circuit breaker when the circuit voltage decreases or is interrupted.
제1도는 종래의 회로 차단기에 내장되어 있는 부족전압 트립장치를 나타내고 있으며, 트립스프링(1)에 의해서 시계방향으로 회동할 수 있도록 기울어저 있는 가동전기자(2)는, 부족전압에 의해서 여자코일(3)이 감세 또는 소세할 때, 시계방향으로 회동해서 파선으로 표시한 상태로 위치가 정해지고, 이 결과, 공통 크로스바아(4)가 가동전기자(2)에 의해서 밀려나서 회로차단기를 트립시키도록 구성되어 있다.1 shows an undervoltage trip device incorporated in a conventional circuit breaker, and the movable armature 2 inclined so as to be rotated clockwise by the trip spring 1 has an excitation coil ( When 3) reduces or sags, the position is set in a state of turning clockwise and indicated by a broken line, and as a result, the common crossbar 4 is pushed by the movable armature 2 to trip the circuit breaker. Consists of.
또한, 도시되어 있지 않으나, 회로 차단기의 트립은, 예를 들면, 공통크로스바아(4)의 밀어내기에 의해, 래칫의 연결상태가 해방되어, 그 회동에 의해 토글(toggl) 기구를 작동해서, 일정한 접촉압력을 유지하여 압착되어 있는 고정접점과 가동접점을 열어 놓으므로 행하여진다.In addition, although not shown, the tripping of the circuit breaker is, for example, by pushing the common cross bar 4, the connection state of the ratchet is released, and the toggle mechanism is operated by the rotation. This is done by keeping the fixed contact and movable contact open while maintaining a constant contact pressure.
일반적으로 부족전압 트립장치에 있어서의 가동전기자의 밀어내는 힘은, 트립스프링의 강약에 따라 정해지나, 트립상태에 있는 회로차단기를 복귀하려면, 비교적 큰 전자력이 필요하게 된다. 또 공통크로스바아의 행정이 클 경우, 여자코일의 고정철심과 가동전기자와의 간극이 커진다. 따라서 이와 같은 부족전압 트립장치를 복귀상태로 되돌리려면 트립스프링의 복귀력에 대항해서 상당히 큰 전자력을 필요로 하므로, 전력손실이 크다는 결점을 갖고 있다. 덧붙여서 공통크로스바아의 행정이 큰 경우에는, 장치가 대형화 한다는 결점을 가지고 있다.Generally, the pushing force of the movable armature in the undervoltage trip device is determined by the strength of the trip spring, but a relatively large electromagnetic force is required to return the circuit breaker in the trip state. In addition, when the common crossbar stroke is large, the gap between the fixed iron core of the excitation coil and the movable armature is increased. Therefore, in order to return the undervoltage trip device to the return state, a large amount of electromagnetic force is required against the return force of the trip spring, and thus, the power loss is large. In addition, when the common crossbar stroke is large, there is a drawback that the apparatus is enlarged.
따라서, 본 고안은, 트립상태에서의 가동 전기자의 움직임을 강제적으로 제한하므로서, 종래의 부족전압 트립장치에 비해서 전력손실이 작고, 또한 소형화가 가능한 부족전압 트립장치를 제공하는 것을 목적으로 하고 있다.It is therefore an object of the present invention to provide an undervoltage trip device capable of minimizing power loss and miniaturization as compared with a conventional undervoltage trip device by forcibly restricting the movement of the movable armature in the trip state.
본 고안을 도시한 실시예에 따라서 상세히 설명한다.It will be described in detail according to the embodiment of the present invention.
제2도는 회로차단기에 내장된 부족전압 트립장치의 개략도이다. 고정철심(5)을 가진 여자코일(3)이 요우크(6)에 고착되고, 또한 핀(7)을 지지하는 지지판(8)이 요우크(6)에 고착된다. 핀(7)에는, 반전레버(9)가 중심으로 회동자재케 지지된다. 제3도는, 반전레버(9)의 확대도로서, 이러한 반전레버(9)는, 그 회동에 따라 가동전기자(2)에 압접 가능한 돌기(10)와, 핀(7)이 삽통되는 구멍(11)(11')과, 래칫(12)에 꽂힌 핀(13)에 압압되는 면(14)을 가지고 있다. 가동전기자(2)는, 일단을 부족전압 트립장치의 일부에 지지된 트립스프링(1)에 의해서 시계방향으로 회동하게 기울어져 있다.2 is a schematic diagram of an undervoltage trip device incorporated in a circuit breaker. The excitation coil 3 having the fixed iron core 5 is fixed to the yoke 6, and the supporting plate 8 supporting the pin 7 is fixed to the yoke 6. The reversing lever 9 is pivotally supported by the pin 7 as a center. 3 is an enlarged view of the inversion lever 9. The inversion lever 9 has a projection 10 which can be press-fitted to the movable armature 2 and the hole 11 through which the pin 7 is inserted. 11 'and the surface 14 pressed by the pin 13 inserted in the ratchet 12. As shown in FIG. The movable armature 2 is tilted to rotate one end clockwise by a trip spring 1 supported by a part of the undervoltage trip device.
부족전압에 의해 여자코일(3)이 감세 또는 소세되면, 가동전기자(2)는 시계방향으로 회동해서 공동크로스바아(4)를 밀어내어, 래칫(12)의 연결상태를 해방하고, 래칫(12)은 핀(15)을 중심으로 반시계 방향으로 회동하여 제2도에 표시된 상태의 위치에 이른다. 즉, 제2도는, 회로차단기의 트립상태를 나타내고 있다.When the excitation coil 3 is reduced or cleared due to the undervoltage, the movable armature 2 rotates clockwise to push out the cavity cross bar 4 to release the connection state of the ratchet 12, and the ratchet 12 ) Rotates counterclockwise around the pin 15 to reach the position shown in FIG. That is, FIG. 2 shows the tripping state of the circuit breaker.
이 트립상태에 있어서, 래칫(12)의 핀(13)은, 반전레버(9)의 면(14)을 압압하여, 반전레버(9)를 핀(7)을 중심으로 시게방향에 회동시키다. 이 결과, 반전레버(9)의 돌기(10)가 가동전기자(2)에 압접해서, 가동전기자(2)에 반시계방향의 회동을 주어, 가동전기자(2)는, 고정철심(5)에 압착되어, 가동전기자(2)와 고정철심(5)과의 간극을 0으로 한다. 따라서, 이 상태에서 회로차단기의 복귀시의 전기자(2) 재흡인은 극히 작은 전자력을 필요로 하는데 지나지 않는다.In this tripping state, the pin 13 of the ratchet 12 presses the surface 14 of the reversing lever 9 to rotate the reversing lever 9 around the pin 7 in the clockwise direction. As a result, the projection 10 of the inverting lever 9 is pressed against the movable armature 2 to give the movable armature 2 a counterclockwise rotation, and the movable armature 2 is connected to the fixed iron core 5. It is crimped | bonded and the clearance gap between the movable armature 2 and the fixed iron core 5 is set to zero. Accordingly, in this state, the re-suction of the armature 2 at the return of the circuit breaker requires only a very small electromagnetic force.
제4도는, 회로전압이 저하 또는 정전된 상태, 즉, 부족전압의 상태에서, 회로차단기를 복귀하려고 하는 경우를 나타내고 있다.4 shows a case where the circuit breaker is to be restored in a state where the circuit voltage is lowered or interrupted, that is, in a state of undervoltage.
이 상태에서는 래칫(12)은 핀(15)을 중심으로 회동시켜서 래칫을 연결시키려고 하여도 여자코일(3)은 감세 또는 소세되어 있으므로, 가동전기자(2)는, 트립스프링(1)에 의해서 시계방향으로 회동되어 공통 크로스바아(4)를 밀어내므로 회전차단기를 복귀할 수가 없다.In this state, even if the ratchet 12 is rotated around the pin 15 to connect the ratchet, the excitation coil 3 is deducted or annealed, so that the movable armature 2 is watched by the trip spring 1. The rotary circuit breaker cannot be returned because it rotates in the direction to push the common cross bar 4.
상술한 바와 같이, 본 고안은, 트립상태에 있어서, 가동전기자가 반전레버에 의해서 강제적으로 고정철심에 압착되어 있으므로, 회로차단기를 복귀할 경우, 가동전기자와 철심과의 사이에 틈새가 미리 좁혀저 있으며 작은 전자력에 의해서 가동전기자를 흡인하면 되므로 부족전압 트립장치를 소형화 할 수 있다.As described above, in the present invention, since the movable armature is forcibly crimped to the fixed iron core by the inversion lever in the trip state, when the circuit breaker is returned, the gap between the movable armature and the iron core is narrowed in advance. In addition, it is possible to miniaturize the undervoltage trip device by sucking the movable armature by a small electromagnetic force.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019820010628U KR830000464Y1 (en) | 1978-04-20 | 1982-12-31 | Undervoltage trip device for circuit breaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019780001172 | 1978-04-20 | ||
KR2019820010628U KR830000464Y1 (en) | 1978-04-20 | 1982-12-31 | Undervoltage trip device for circuit breaker |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019780001172 Division | 1978-04-20 | 1978-04-20 |
Publications (1)
Publication Number | Publication Date |
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KR830000464Y1 true KR830000464Y1 (en) | 1983-04-04 |
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ID=26626182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019820010628U KR830000464Y1 (en) | 1978-04-20 | 1982-12-31 | Undervoltage trip device for circuit breaker |
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KR (1) | KR830000464Y1 (en) |
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1982
- 1982-12-31 KR KR2019820010628U patent/KR830000464Y1/en active
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