KR20070066190A - Disconnecting switch structure - Google Patents

Disconnecting switch structure Download PDF

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Publication number
KR20070066190A
KR20070066190A KR1020050127059A KR20050127059A KR20070066190A KR 20070066190 A KR20070066190 A KR 20070066190A KR 1020050127059 A KR1020050127059 A KR 1020050127059A KR 20050127059 A KR20050127059 A KR 20050127059A KR 20070066190 A KR20070066190 A KR 20070066190A
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KR
South Korea
Prior art keywords
contactor
movable arc
contact
fixed
connector
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KR1020050127059A
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Korean (ko)
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KR101155598B1 (en
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김형춘
허규대
이형진
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현대중공업 주식회사
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Priority to KR1020050127059A priority Critical patent/KR101155598B1/en
Publication of KR20070066190A publication Critical patent/KR20070066190A/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
    • H01H33/02—Details
    • H01H33/42—Driving 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6641—Contacts; Arc-extinguishing means, e.g. arcing rings making use of a separate coil

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

A high-pressure disconnecting switch structure is provided to return a movable arc connector at an original position in a main connector by resilience of a coil spring. A moving chamber(4) for receiving a movable arc connector(6) is formed in a main connector(1). A shaft hole(2) is formed at a center portion of the moving chamber. The movable arch connector is fitted in a center shaft, and one end of the movable arc connector is connected to a stationary connector. A coil spring(8) is wound around an outer periphery of the movable arc connector to return the movable arc connector to an original position.

Description

고압 단로기구조{Disconnecting switch structure}High-voltage disconnector structure

도 1 은 본 발명의 고압 단로기구조를 보인 단면도.1 is a cross-sectional view showing a high pressure disconnector structure of the present invention.

도 2 는 본 발명의 고압단로기 구조의 작동상태를 보인 단면도.Figure 2 is a cross-sectional view showing an operating state of the high voltage circuit breaker structure of the present invention.

도 3 은 본 발명의 작동상태를 보인 도면.3 is a view showing an operating state of the present invention.

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

1: 메인접촉자, 2: 축홀,1: main contactor, 2: shaft hole,

3: 중심축, 4: 유동실,3: central axis, 4: flow chamber,

5: 스토퍼, 6: 가동아크 접촉자,5: stopper, 6: movable arc contactor,

7: 단턱, 8: 코일스프링,7: stepped, 8: coil spring,

9: 가압스프링, 10: 고정접촉자,9: pressurized spring, 10: fixed contactor,

본 발명은 고압 단로기 구조에 관한 것으로서, 특히 고압 단로기의 오픈동작시 메인접촉자의 움직임에 의해 단턱과 스토퍼의 물리적인 접촉에 의해 가동아크 접촉자가 고정접촉자로부터 분리되고, 분리된 후에는 코일스프링의 탄성력에 의해 가동 아크접촉자가 신속하게 메인접촉자 내의 원래위치로 복귀함에 따라 고압 단로기의 내구성이 향상됨은 물론 동작성능을 향상시킬 수 있도록 한 고압 단로기 구조에 관한 것이다.The present invention relates to a structure of a high pressure disconnector, and in particular, the movable arc contactor is separated from the fixed contactor by the physical contact of the stepper and the stopper by the movement of the main contactor during the open operation of the high pressure disconnector, and after the elastic force of the coil spring is separated. As a result, the movable arc contactor quickly returns to its original position in the main contactor, thereby improving the durability of the high-voltage disconnector, and also relates to a high-voltage disconnector structure capable of improving operation performance.

일반적으로 변전소 등과 같이 고압 전류가 흐르는 회로를 갖는 시설에서 정상상태에서 뿐만 아니라 사고, 단락 등의 이상상태에서도 선로를 안전하게 개폐하여 전력계통을 보호하도록 구성된 가스절연개폐기는 통상, 차단기, 단로기, 접지개폐기 등으로 구성되는바, 그 중에서도 단로기(Disconnecting Switch)의 경우에는 전력계통의 운전, 유지 및 보수를 위하여 지속적이고 반복적인 개폐가 요구되는 개폐장치이다.In general, a gas insulated switchgear configured to protect the power system by safely opening and closing a line in an abnormal state such as an accident, short circuit, etc. in a facility having a circuit having a high voltage current such as a substation usually has a breaker, a disconnector, a grounding breaker. Among them, in the case of a disconnecting switch, a disconnecting switch is a switching device requiring continuous and repetitive opening and closing for the operation, maintenance and repair of the power system.

그러나, 종래 기술은 코일스프링력에만 의존하여 가동 아크 접촉자와 고정접촉자의 분리가 이루어지기 때문에 스프링 힘의 오차범위가 제품에 따라 +/- 5% 이상의 특성을 갖게되므로 R,S,T 상의 개리차가 발생하게되고, 또한 개폐시 발생하는 가동 아크접촉자과 고정 접촉자의 접점의 훼손으로 접촉력이 개폐횟수 증가에 따라 개극시간이 빨라져 불확실한 성능을 갖게되는 가능성을 가지고 있다.However, in the related art, since the separation between the movable arc contactor and the fixed contactor is made only by the coil spring force, the error range of the spring force has a characteristic of +/- 5% or more depending on the product, so that the difference in the gap between R, S and T In addition, due to the damage of the contact of the movable arc contactor and the fixed contact that occurs during opening and closing, the opening force is increased as the contact force increases and the frequency of opening and closing has a possibility of having an uncertain performance.

따라서, 상기 문제점을 해결하기 위한 본 발명은 메인접촉자의 유동실 내부에 가동 아크 접촉자를 형성하고, 상기 가동 아크접촉자의 일측이 고정접촉자와 접촉된 상태를 유지하도록 하되, 상기 가동 아크접촉자의 몸체 외주면상에 코일스프링을 권선함과 동시에 몸체의 외주면 중간부에 단턱을 형성하고, 메인접촉자의 내주면상에는 상기 코일스프링을 지지하면서 상기 단턱이 접촉된 이후부터 가동 아 크 접촉자가 고정접촉자로부터 분리되도록 하는 스토퍼를 형성하므로서, 고압 단로기의 오픈동작시 메인접촉자의 움직임에 의해 단턱과 스토퍼의 물리적인 접촉에 의해 가동아크 접촉자가 고정접촉자로부터 분리되고, 분리된 후에는 코일스프링의 탄성력에 의해 가동 아크접촉자가 신속하게 메인접촉자 내의 원래위치로 복귀함에 따라 가동 아크접촉자의 복귀 시간이 동일해지면서 고압 단로기의 내구성이 향상됨은 물론 동작성능을 향상시킬 수 있도록 한 고압 단로기 구조를 제공함을 목적으로 한다.Accordingly, the present invention for solving the above problems is to form a movable arc contactor in the flow chamber of the main contactor, so that one side of the movable arc contactor is in contact with the fixed contactor, the outer periphery of the body of the movable arc contactor A stopper for winding the coil spring on the surface and forming a step in the middle of the outer circumferential surface of the body, and supporting the coil spring on the inner circumferential surface of the main contactor so that the movable arc contactor is separated from the fixed contact after the step is in contact. In the open operation of the high-voltage disconnector, the movable arc contactor is separated from the fixed contactor by the physical contact of the stepper and the stopper by the movement of the main contactor, and after the detachment, the movable arc contactor is rapidly moved by the elastic force of the coil spring. Move back to the original position within the main contactor. And a high-voltage disconnecting switch structure of the high-voltage disconnector As to the same time the return of the contacts so that the durability can be improved as well as improving the operating performance for the purpose of providing.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

청구범위 제 1 항에 의하여,According to claim 1,

유동실이 형성된 메인접촉자가 구비되고, 상기 유동실 내부에 그 일측이 고정접촉자에 접속된 상태의 가동아크접촉자가 내장되며, 메인접촉자의 움직임에 의해 가동아크접촉자와 고정접촉자의 분리가 이루어지는 고압 단로기에 있어서,A high pressure disconnector having a main contactor having a flow chamber formed therein, a movable arc contactor having one side connected to the fixed contactor inside the flow chamber, and separating the movable arc contactor from the fixed contactor by the movement of the main contactor. To

상기 가동 아크접촉자의 몸체 외주면상에 코일스프링을 권선함과 동시에 몸체의 외주면 중간부에 단턱을 형성하고, 메인접촉자의 내주면상에는 상기 코일스프링을 지지하면서 상기 단턱이 접촉된 이후부터 가동 아크 접촉자가 고정접촉자로부터 분리되도록 하는 스토퍼를 돌출 형성한 것을 특징으로 한다.The coil spring is wound on the outer circumferential surface of the body of the movable arc contactor, and at the same time, a step is formed in the middle of the outer circumferential surface of the body. It characterized in that the stopper is formed to protrude from the contactor.

청구범위 제 2 항에 의하여,According to claim 2,

상기 스토퍼의 형성위치는 단턱과의 접촉에 의해 가동아크접촉자가 고정접촉자로부터 분리되는 위치인 것을 특징으로 한다.The stopper may be formed at a position where the movable arc contactor is separated from the fixed contactor by contact with the step.

이하, 첨부된 도면 도 1 내지 도 3 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 3.

도면부호 1 은 단로기 내부의 메인접촉자를 나타낸다.Reference numeral 1 denotes a main contactor inside the disconnector.

상기 메인접촉자(1)의 내부에는 가동아크 접촉자(6)가 내장되기 위한 유동실(4)이 형성되어 있고, 그 유동실(4)의 중심에는 축홀(2)이 형성되어 있다.The inside of the main contactor 1 is formed with a flow chamber 4 for embedding the movable arc contactor 6, and the shaft hole 2 is formed in the center of the flow chamber (4).

상기 축홀(2)에는 중심축(3)이 끼워져 결속되어 가동아크 접촉자(6)의 가이더 역할을 수행하게된다.A central shaft 3 is fitted into and coupled to the shaft hole 2 to serve as a guider of the movable arc contactor 6.

한편, 상기 유동실(4) 내부에는 가동아크 접촉자(6)가 내장되는데, 상기 가동아크 접촉자(6)는 중심축(3)에 끼워져 슬라이딩 이동될 수 있게되고, 가동아크 접촉자(6)의 일단은 도면과같이 고정접촉자(10)가 결속되어 있다.Meanwhile, a movable arc contactor 6 is embedded in the flow chamber 4, and the movable arc contactor 6 is inserted into the central shaft 3 to be slidably moved, and one end of the movable arc contactor 6 is provided. As shown in the drawing, the fixed contactor 10 is bound.

상기 가동아크접촉자(6)와 고정접촉자(10)는 서로 분리가 가능한 구조를 갖는다.The movable arc contactor 6 and the fixed contactor 10 have a structure that can be separated from each other.

그리고, 상기한 가동아크 접촉자(6)의 외주면상에는 작동된 가동아크 접촉자(6)를 원위치로 복귀시키는 코일스프링(8)이 권선되어지며, 상기 메인접촉자(1)의 내주면상에는 상기 코일스프링(8)이 압축되도록 하는 스토퍼(5)를 내향 돌출 형성한다.In addition, a coil spring 8 for returning the operated movable contactor 6 to its original position is wound on the outer circumferential surface of the movable arc contactor 6, and the coil spring 8 is formed on the inner circumferential surface of the main contactor 1. ), The stopper 5 is formed to protrude inwardly.

즉, 오픈명령에 의해 메인접촉자(1)가 도면상의 좌측으로 움직임에 따라 코일스프링(8)이 스토퍼(5)에 의해 밀리면서 가압되는 것이다.That is, the coil spring 8 is pushed by the stopper 5 as the main contactor 1 moves to the left side in the drawing due to the open command.

한편, 상기 가동아크 접촉자(6)의 외주면 중간단에는 단턱(7)이 단차지게 형성된다.On the other hand, at the intermediate end of the outer circumferential surface of the movable arc contact (6) is formed with a step (7) stepped.

상기 단턱(7)은 오픈동작시 메인접촉자(1)가 어느정도 전진동작하였을때 상기 스토퍼(5)와 접촉되고, 이 접촉에 의해 발생되는 물리적인 힘에 의해 가동아크접촉자(6)가 고정접촉자(10)로 부터 분리되도록 하는 기능을 갖는다.The step 7 is in contact with the stopper 5 when the main contactor 1 moves forward to some extent during the open operation, and the movable arc contactor 6 is fixed by the physical contact force generated by the contact. 10) has a function to separate from.

즉, 상기 스토퍼(5)는 단턱(7)과의 접촉에 의해 가동아크접촉자(6)가 고정접촉자(10)로부터 분리되는 위치에 형성되는 것이다.That is, the stopper 5 is formed at a position where the movable arc contactor 6 is separated from the fixed contactor 10 by contact with the step 7.

그리고 미설명된 도면부호 9 는 가압스프링을 나타내는 것으로서, 가동아크 접촉자(6)와 고정접촉자(10)의 접촉이 잘 이루어질 수 있도록 가동아크 접촉자(6)를 눌러주는 역할을 한다.In addition, reference numeral 9 denotes a pressure spring, and serves to press the movable arc contactor 6 so that the contact of the movable arc contactor 6 and the fixed contactor 10 can be made well.

이와같이 구성된 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above is as follows.

고압 단로기는 도 1 과같이 상시 클로스(Close) 상태, 즉, 개폐기 상태로 존재한다.As shown in FIG. 1, the high voltage disconnector is always in a closed state, that is, a switch state.

이러한 상태에서 오픈지령에 의해 미도시된 모터가 동작하면, 메인접촉자(1)가 도면상의 좌측방향으로 전진하게된다.In this state, when the motor not shown by the open command operates, the main contactor 1 moves forward in the left direction on the drawing.

메인접촉자(1)의 전진동작 초기에는 가동아크 접촉자(6)와 고정접촉자(10)의 접촉상태는 그대로 유지되며, 단지 코일스프링(8)이 스토퍼(5)에 의해 가압되면서 수축되어 탄성에너지를 비축하게된다.At the beginning of the forward operation of the main contactor 1, the contact state of the movable arc contactor 6 and the fixed contactor 10 is maintained as it is, and the coil spring 8 is contracted while being pressed by the stopper 5 to restore elastic energy. Stockpile

한편, 메인접촉자(1)의 지속적인 전진에 의해 도 2 와같이 가동아크접촉자(6)의 단턱(7)과 스토퍼(5)가 접촉하게되면, 이때부터는 단턱(7)과 스토퍼(5)의 접촉에 의한 물리적인 힘이 가동아크 접촉자(6)에 인가되면서 그 물리적인 힘에 의해 가동아크 접촉자(6)가 고정접촉자(10)로부터 분리된다.(도 3 참조)On the other hand, when the step 7 and the stopper 5 of the movable arc contactor 6 come into contact with each other by the continuous advancement of the main contactor 1, the contact of the step 7 and the stopper 5 from this point on. As the physical force is applied to the movable arc contactor 6, the movable arc contactor 6 is separated from the fixed contactor 10 by the physical force (see FIG. 3).

가동아크 접촉자(6)가 고정 접촉자(10)로부터 분리된 후에는 코일스프링(8)의 비축된 탄성력에 의해 가동아크 접촉자(6)가 메인접촉자(1)의 유동실(4) 내부로 몰입되면서 원위치로 복귀하는 것이다.After the movable arc contactor 6 is separated from the fixed contactor 10, the movable arc contactor 6 is immersed into the flow chamber 4 of the main contactor 1 by the reserved elastic force of the coil spring 8. To return to its original position.

상기 설명과같은 본 발명에 의하면 가동아크 접촉자(6)와 고정접촉자(10)의 분리시점이 단턱(7)과 스토퍼(5)가 접촉되는 시점으로부터 이루어짐에 따라 가동아트 접촉자(6)와 고정접촉자(10)의 접점이 훼손되더라도 항상 일정한 시간차를 두고 가동아크 접촉자(6)와 고정접촉자(10)가 분리되도록 할 수 있는 것이다. 즉, 고압 단로기가 항상 일정한 개폐특성을 갖게되는 것이다.According to the present invention as described above, as the separation point of the movable arc contactor 6 and the fixed contactor 10 is made from the point of contact of the step 7 and the stopper 5, the movable art contactor 6 and the fixed contactor Even if the contact point of (10) is damaged, the movable arc contactor 6 and the fixed contactor 10 may be separated from each other at regular time intervals. That is, the high pressure disconnector always has a constant opening and closing characteristics.

이상에서 설명한 바와같이 본 발명은 메인접촉자의 유동실 내부에 가동 아크 접촉자를 형성하고, 상기 가동 아크접촉자의 일측이 고정접촉자와 접촉된 상태를 유지하도록 하되, 상기 가동 아크접촉자의 몸체 외주면상에 코일스프링을 권선함과 동시에 몸체의 외주면 중간부에 단턱을 형성하고, 메인접촉자의 내주면상에는 상기 코일스프링을 지지하면서 상기 단턱이 접촉된 이후부터 가동 아크 접촉자가 고정접촉자로부터 분리되도록 하는 스토퍼를 형성하므로서, 고압 단로기의 오픈동작시 메인접촉자의 움직임에 의해 단턱과 스토퍼의 물리적인 접촉에 의해 가동아크 접촉자가 고정접촉자로부터 분리되고, 분리된 후에는 코일스프링의 탄성력에 의해 가동 아크접촉자가 신속하게 메인접촉자 내의 원래위치로 복귀함에 따라 고압 단로기의 내구성이 향상됨은 물론 동작성능을 향상시킬 수 있도록 한 고압 단로기 구조를 제공하는 효과를 기대할 수 있다.As described above, the present invention forms a movable arc contactor in the flow chamber of the main contactor, and maintains one side of the movable arc contactor in contact with the fixed contactor, and coils on the outer circumferential surface of the body of the movable arc contactor. By winding the spring and forming a stepped portion at the middle of the outer circumferential surface of the body, and forming a stopper on the inner circumferential surface of the main contactor to allow the movable arc contactor to be separated from the fixed contactor after the stepped contact while supporting the coil spring, During open operation of the high-voltage disconnector, the movable arc contactor is separated from the fixed contactor by the physical contact of the stepper and the stopper by the movement of the main contactor, and after the disconnection, the movable arc contactor is quickly moved into the main contactor by the elastic force of the coil spring. Durability of high voltage disconnector as it returns to original position This improvement can be expected as well as the effect of providing a high-voltage disconnecting switch structure so as to improve the operational performance.

Claims (2)

유동실이 형성된 메인접촉자가 구비되고, 상기 유동실 내부에 그 일측이 고정접촉자에 접속된 상태의 가동아크접촉자가 내장되며, 메인접촉자의 움직임에 의해 가동아크접촉자와 고정접촉자의 분리가 이루어지는 고압 단로기에 있어서,A high pressure disconnector having a main contactor having a flow chamber formed therein, a movable arc contactor having one side connected to the fixed contactor inside the flow chamber, and separating the movable arc contactor from the fixed contactor by the movement of the main contactor. To 상기 가동 아크접촉자의 몸체 외주면상에 코일스프링을 권선함과 동시에 몸체의 외주면 중간부에 단턱을 형성하고, 메인접촉자의 내주면상에는 상기 코일스프링을 지지하면서 상기 단턱이 접촉된 이후부터 가동 아크 접촉자가 고정접촉자로부터 분리되도록 하는 스토퍼를 돌출 형성한 것을 특징으로 하는 고압단로기 구조.The coil spring is wound on the outer circumferential surface of the body of the movable arc contactor, and at the same time, a step is formed in the middle of the outer circumferential surface of the body. A high voltage breaker structure characterized in that the stopper is formed to protrude from the contactor. 제 1 항에 있어서, The method of claim 1, 상기 스토퍼의 형성위치는 단턱과의 접촉에 의해 가동아크접촉자가 고정접촉자로부터 분리되는 위치인 것을 특징으로 하는 고압단로기 구조.The stopper formation position is a high voltage circuit breaker structure, characterized in that the movable arc contactor is separated from the fixed contact by the contact with the step.
KR1020050127059A 2005-12-21 2005-12-21 Disconnecting switch structure KR101155598B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100963891B1 (en) * 2008-06-17 2010-06-17 김동훈 Disconnecting Switch
CN114743824A (en) * 2021-12-22 2022-07-12 平高集团有限公司 Double-break isolating switch and GIS equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100797982B1 (en) * 2003-04-23 2008-01-24 현대중공업 주식회사 Disconnecting Switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100963891B1 (en) * 2008-06-17 2010-06-17 김동훈 Disconnecting Switch
CN114743824A (en) * 2021-12-22 2022-07-12 平高集团有限公司 Double-break isolating switch and GIS equipment
CN114743824B (en) * 2021-12-22 2024-05-17 平高集团有限公司 Double-break isolating switch and GIS equipment

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