KR940000055Y1 - Circuit breaker - Google Patents

Circuit breaker Download PDF

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Publication number
KR940000055Y1
KR940000055Y1 KR2019910002598U KR910002598U KR940000055Y1 KR 940000055 Y1 KR940000055 Y1 KR 940000055Y1 KR 2019910002598 U KR2019910002598 U KR 2019910002598U KR 910002598 U KR910002598 U KR 910002598U KR 940000055 Y1 KR940000055 Y1 KR 940000055Y1
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South Korea
Prior art keywords
current
limiting
latch
circuit breaker
movable contactor
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KR2019910002598U
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Korean (ko)
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KR920017186U (en
Inventor
노진설
이상돈
구자희
김종구
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금성계전 주식회사
백중영
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Priority to KR2019910002598U priority Critical patent/KR940000055Y1/en
Publication of KR920017186U publication Critical patent/KR920017186U/en
Application granted granted Critical
Publication of KR940000055Y1 publication Critical patent/KR940000055Y1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
    • 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

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

내용 없음.No content.

Description

저압회로차단기의 한류장치Current limiting device of low voltage circuit breaker

제1도는 종래장치의 구성도.1 is a block diagram of a conventional apparatus.

제2도는 본 고안의 구성에 의한 한류장치의 "온"상태도.2 is a "on" state of the current-limiting device according to the configuration of the present invention.

제3도는 본 고안의 구성에 의한 한류장치의 차단회로도.Figure 3 is a circuit breaker of the current-limiting device according to the configuration of the present invention.

제4도는 본 고안의 구성에 의한 한류장치의 트립(Trip)상태도.4 is a trip state of the current-limiting device according to the constitution of the present invention.

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

7 : 하부링크 15 : 고정핀7: lower link 15: fixing pin

16 : 한류래치 19 : 아마츄어16: Hallyu latch 19: Amateur

20 : 트립크로스바 24 : 홀더20: trip cross bar 24: holder

25 : 가동접촉자 26 : 고정접촉자25: movable contactor 26: fixed contactor

28 : 고정접촉스프링 29 : 접촉스프링28: fixed contact spring 29: contact spring

34 : 한류스프링34: Hallyu Spring

본 고안은 전압회로 차단기에 관한 것으로서 특히 회로차단기의 차단동작이 신속하게 이루어지도록 구성시킨 한류장치에 관한 것이다.The present invention relates to a voltage circuit breaker, and more particularly, to a current-limiting device configured so that the breaking operation of the circuit breaker is performed quickly.

일반적으로 산업용 전기에 있어 과부하 및 단락사고시 이를 필요조건내에 차단시킴으로서 인명과 재산을 보호함을 목적으로 저압회고 차단기를 사용하는데, 특히 단락사고시 회로를 얼마나 고속차단시키는가 하는 문제가 회로차단기에 있어 매우 중요시되고 있다.In general, low voltage circuit breaker is used to protect human life and property by blocking overload and short-circuit accident within the requirements in industrial electricity. Especially, how fast the circuit is interrupted in case of short-circuit accident is very important for circuit breaker. It is becoming.

이를 만족시키기 위하여 전원측과 부하측간의 도체상호간의 전자반발력을 이용하여 회로를 차단시키는 한류장치가 고성능 회로차단기의 일반적인 구조이다.In order to satisfy this problem, a current-limiting device that cuts off a circuit using electromagnetic repulsive force between conductors between a power supply side and a load side is a general structure of a high performance circuit breaker.

이와같이 종래 회로차단기는 부하측 도체인 고정접촉자(6)와 전원측도체인 가동접촉자(5)를 상하로 운동가능케 하는 하부링크(7)과 상부링크(8)로 구성되어 있으며 회로차단기에 있어 투입, 차단을 가능케하기 위하여 상부링크(8)의 지점을 결정지어주는 래치(2)와 래치(2)의 좌, 우이동을 구속시켜주는 래치홀더(3)로 구성되어 있으며 래치(2)의 구속상태에서 투입력과 차단력을 발생시켜주는 메인스프링(10)과 메인스프링(10)을 변화 가능케 만들어주는 레바(1)로 구성되어 있다.As described above, the conventional circuit breaker includes a lower link 7 and an upper link 8 which allow the fixed contactor 6, the load-side conductor, and the movable contactor 5, the power-side conductor, to move up and down. It consists of a latch (2) to determine the point of the upper link (8) and a latch holder (3) to restrain the left and right movement of the latch (2) to enable the It consists of a main spring (10) for generating input and breaking force and a lever (1) for making the main spring (10) changeable.

제1도는 종래의 회로차단기 구조에 있어서 통전시의 상태를 나타낸 것이다.1 shows a state at the time of energization in the conventional circuit breaker structure.

제1도와 같은 상태에서 단락전류발생시 가동접촉자(5)와 고정접촉자(6)도체간의 전자반발력(F)이 발생한다. 이러한 전자반발력에 의하여 홀더(4)는 홀더핀(12)의 구속으로부터 풀려 홀더(4)와 가동접촉자(5)는 샤프트핀(11)을 중심으로 시계방향으로 회전운동을 함으로서 단락전류를 차단시킨다.In the state as shown in FIG. 1, when the short-circuit current is generated, the electromagnetic repulsive force F between the movable contactor 5 and the fixed contactor 6 conductor is generated. By the electromagnetic repulsive force, the holder 4 is released from the restraint of the holder pin 12, and the holder 4 and the movable contactor 5 block the short-circuit current by rotating clockwise about the shaft pin 11. .

그러나 종래 기술구성은 단락전류발생시 발생되는 전자반발력의 힘으로만 차단이 되기 때문에 차단속도의 증대를 충족시킬 수 없다. 또한 이와같은 구조로 이루어지는 종래의 고용량형 회로차단기의 구조는 필수적으로 대형화됨으로 인해 가격 및 배전반 설계에 있어 많은 제약조건을 갖는다는 단점이 있다.However, the prior art configuration can not meet the increase in the blocking speed because the blocking is only by the force of the electromagnetic repulsive force generated when a short circuit current occurs. In addition, the structure of the conventional high-capacity circuit breaker having such a structure has a disadvantage in that it has a lot of constraints in price and switchboard design because it is essentially large.

본 고안은 상기한 단점들을 해결토록 구성시킨 한류차단기구의 개향에 관한 것으로 단락사고시 가동접촉자와 고정접촉자를 보다 빨리 개극시키기 위한 한류차단기구를 제공하는 것을 목적으로 한다.The present invention relates to the improvement of the current-limiting circuit breaker configured to solve the above-mentioned disadvantages, and an object of the present invention is to provide a current-limiting blocking mechanism for opening the movable contactor and the fixed contactor more quickly in a short circuit accident.

본 고안의 구성은 제2도에 도시한 바와같이, 홀더(24)에 가동접촉자(25)와 한류래치(16)를 접속시키고 한류래치(16)와 가동접촉자(25)를 한류스프링(34)으로 연결하고, 한류래치(16)와 홀더(24)를 접촉스프링(29)으로 연결한다.As shown in FIG. 2, the constitution of the present invention is to connect the movable contactor 25 and the current-limiting latch 16 to the holder 24, and the current-limiting latch 16 and the movable contactor 25 to the current-limiting spring 34. And the current latch 16 and the holder 24 are connected by a contact spring 29.

부하측도체는 고정접촉자(26)와 이를 지지시켜주는 지지대(27)와 고정접촉자(26)에 접촉압력을 주는 고정접촉스프링(28)으로 구성하며 그외의 구성은 종래의 구성과 유사하게 홀더(24)를 상하운동을 가능케하는 하부링크(7)와 상부링크(8)로 구성되어 있으며, 회로차단기에 있어 투입과 차단을 가능케하기 위하여 상부링크(8)의 지점을 결정지어주는 래치(2)와 래치(2)의 좌우운동을 구속시켜주는 래치홀더(3)로 구성되어 있으며 래치(2)의 구속상태에서 투입력과 차단력을 발생시켜주는 메인스프링(10)과 메인스프링(10)을 변화가능케 만들어주는 레바(1)로 구성되어 있다.The load side conductor is composed of a fixed contactor 26, a support 27 supporting the same, and a fixed contact spring 28 for applying contact pressure to the fixed contactor 26. The rest of the configuration is similar to that of the conventional configuration. ) Consists of a lower link (7) and an upper link (8) to enable the vertical movement, the latch (2) to determine the point of the upper link (8) in order to enable the closing and closing in the circuit breaker; It consists of a latch holder (3) for restraining the left and right movement of the latch (2) and makes it possible to change the main spring (10) and the main spring (10) for generating the closing force and the blocking force in the restrained state of the latch (2) It consists of a lever (1) to make.

상기 구성에 의한 본 고안의 동작관계를 이하에서 설명하면 다음과 같다.Referring to the operation relationship of the present invention by the above configuration as follows.

본 고안은 제2도에서 나타낸 바와같이 회로차단기에 단락사고 전류발생시, 가동접촉자(25)와 고정접촉자(26)사이에 전자반발력이 발생한다.In the present invention, as shown in FIG. 2, when a short circuit current occurs in the circuit breaker, an electromagnetic repulsion force is generated between the movable contact 25 and the fixed contact 26.

이로 인하여 가동접촉자(25)는 시계방향으로 운동을 하려고 하며, 고정접촉자(26)는 반시계방향으로 운동을 하려고 한다.For this reason, the movable contactor 25 tries to move in the clockwise direction, and the fixed contactor 26 tries to move in the counterclockwise direction.

가동접촉자(25)가 시계방향으로 운동하려할 때 가동접촉자(25)에 접속되어 있는 접촉핀(15)이 한류래치(16)의 구속에서 풀려나야 한다.When the movable contact 25 is to be moved clockwise, the contact pin 15 connected to the movable contact 25 should be released from the restriction of the current-limiting latch 16.

그러므로 전자반발력(F)이 가동접촉자(25)를 들어올릴 때 홀더(24)와 한류래치(16), 가동접촉자(25)에 접촉되어 있는 한류핀(13)은 우측방향으로 전자반발력의 힘을 전달하고, 한류핀(13)은 한류래치(16)를 유측으로 밀어냄으로서 가동접촉자(25)에 접속되어 있는 접촉핀(15)은 한류래치(16)의 구속에서 풀려난다. 이때 한류래치(16)와 가동접촉자(25)에 접속되어 있는 한류스프링(34)의 인장력으로 인하여 고속차단을 가능케한다.Therefore, when the electromagnetic repulsive force F lifts the movable contactor 25, the current-limiting pin 13, which is in contact with the holder 24, the current-limit latch 16, and the movable contactor 25, exerts the force of the electromagnetic repulsive force in the right direction. And the current pin 13 pushes the current latch 16 to the oil side so that the contact pin 15 connected to the movable contact 25 is released from the restriction of the current latch 16. At this time, high-speed blocking is possible due to the tension of the current-limiting spring 34 connected to the current-limiting latch 16 and the movable contactor 25.

일차적으로 제3도와 같이 한류차단이 발생한후, 사고전류 검출기구인 아마츄어(19)가 반시계방향으로 회전하면서 트립크로스바(20)를 친다.Firstly, after the current-limiting interruption occurs as shown in FIG. 3, the armature 19, which is the fault current detector, rotates counterclockwise and strikes the trip crossbar 20.

즉, 제4도는 본 고안의 장치에 의한 트립(Trip)상태를 나타낸 것으로서 이때 래치(2)는 래치홀더(3)의 구속에서 풀리면서 메인스프링(10)과 접촉스프링(29)의 인장력으로 홀더(24)에 접속되어 있는 하부링크(7)를 끌어 올린다.That is, FIG. 4 shows a trip state by the device of the present invention, wherein the latch 2 is released from the restraint of the latch holder 3 while the holder is pulled by the tension force of the main spring 10 and the contact spring 29. The lower link 7 connected to the 24 is pulled up.

이상과 같이 회로차단기는 단락사고시 가동접촉자와 고정접촉자를 보다 빨리 차단케하여 인명과 재산을 최대한으로 보호하는 효과가 있다.As described above, the circuit breaker blocks the movable contactor and the fixed contactor more quickly in the event of a short circuit, thereby protecting the life and property to the maximum.

Claims (2)

지지대(27)와 접촉력을 가해주는 고정접촉스프링(28)을 갖는 부하측의 고정접촉자(26)와, 접속핀(15)에 의해 한류래치(16)의 홈에 구속되는 가동접촉자(25)와, 가동접촉자(25)와 한류래치(16)를 접속시키며 그의 선단을 하부링크(7)와 연결시킨 홀더(24)와, 가동접촉자(25)에 접속되는 한류핀(13)과 접속핀(15)을 구속하는 한류래치(16)를 포함하여 구성된 것을 특징으로 하는 저압회로 차단기의 한류장치.A fixed contactor 26 on the load side having a fixed contact spring 28 that exerts a contact force with the support 27, and a movable contactor 25 that is constrained to the groove of the current-limiting latch 16 by the connecting pin 15; A holder 24 for connecting the movable contactor 25 and the current-limiting latch 16 and connecting the tip thereof with the lower link 7, a current-limiting pin 13 and a connecting pin 15 connected to the movable contactor 25; The current limiting device of the low-voltage circuit breaker, characterized in that comprises a current limiting latch 16. 제1항에 있어서, 한류래치(16)와 가동접촉자(25)사이에는 한류스프링(34)을 설치하고, 한류래치(16)와 홀더(24)사이에는 접촉스프링(29)을 설치하여 가동접촉자(25)가 상기 스프링의 인장력에 의해 고정접촉자(26)로 부터 급속하게 분리되도록 구성시킨 것을 특징으로 하는 저압회로차단기의 한류장치.The movable contactor according to claim 1, wherein a current-limiting spring (34) is provided between the current-limiting latch (16) and the movable contactor (25), and a contact spring (29) is provided between the current-limiting latch (16) and the holder (24). The current limiting device of the low voltage circuit breaker, characterized in that (25) is configured to be rapidly separated from the fixed contact (26) by the tension force of the spring.
KR2019910002598U 1991-02-25 1991-02-25 Circuit breaker KR940000055Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019910002598U KR940000055Y1 (en) 1991-02-25 1991-02-25 Circuit breaker

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Application Number Priority Date Filing Date Title
KR2019910002598U KR940000055Y1 (en) 1991-02-25 1991-02-25 Circuit breaker

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KR920017186U KR920017186U (en) 1992-09-17
KR940000055Y1 true KR940000055Y1 (en) 1994-01-05

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