KR20130003760A

KR20130003760A - Gas-insulated switchgear

Info

Publication number: KR20130003760A
Application number: KR1020110065294A
Authority: KR
Inventors: 이동훈
Original assignee: 현대중공업 주식회사
Priority date: 2011-07-01
Filing date: 2011-07-01
Publication date: 2013-01-09

Abstract

The gas insulated switchgear is disposed vertically and intersects the first and second flanges, the movable contactor, and some edges of the gas insulated switchgear which cross each other on an extension line to each of the first and second flanges, respectively. And a terminal connected to one end thereof and including a contact that can be connected to the movable contact.

Description

Gas Insulated Switchgear {GAS-INSULATED SWITCHGEAR}

The disclosed technique relates to a gas insulated switchgear, and more particularly, to a gas insulated switchgear that can reduce the size of the tank.

In general, Gas Insulated Switchgear (GIS) is a mechanism that performs the opening / closing mission to cut off the current when an accident current occurs.The circuit breaker, disconnector, ground switchgear, instrument current transformer and bus line are embedded in a grounded metal tank. It is a product filled with SF6 gas with excellent insulation and extinguishing characteristics. It is a power switchgear with advantages such as miniaturization of substation, improvement of safety and reliability, easy operation and maintenance, and harmony with environment. There are two-phase and three-phase switches for gas insulated switchgear, and many gas insulated switchgear have been developed to implement two-phase switch and three-phase switch which are easier, safer and take up less space.

The present application provides a gas insulated switchgear that can reduce the size of the tank.

Among the embodiments, the gas insulated switchgear is disposed vertically and intersects some edges of the first and second flanges, the movable contact and the gas insulated switchgear that are intersected on one end of each of the first and second flanges, inclined surfaces. And a terminal connected to one end of each of the two flanges, the terminal including a contact that can be connected to the movable contact.

In one embodiment, the terminal may comprise a first connection portion and a second connection portion, wherein the first flange and the second flange are connected to one end to each of the first connection portion, the first connection portion being angled from a parallel line of the second flange. α (where α is 90 degrees or less) can be formed.

In one embodiment, the terminal may connect the contact, and may further include a contact connecting portion forming an angle β (the β is 90 + α) from the parallel line of the second flange.

In one embodiment, the first connection portion may be disposed parallel to the first flange and coupled, and the second connection portion may be disposed and coupled on an extension line of the second flange.

The disclosed technology of the present application can angle the terminal between the flanges to reduce the enclosure size of the gas insulated switchgear. That is, the gas insulated switchgear can form a terminal and a contact connecting portion at angles α and β, respectively, to reduce the size of the enclosure.

The disclosed technology of the present application can reduce the weight of the material, the weight of the enclosure consumed in the gas insulated switchgear can reduce the manufacturing cost.

1 is a cross-sectional view showing a gas insulated switchgear according to an embodiment of the disclosed technology.
FIG. 2 is a partial detailed view of a terminal in the gas insulated switchgear of FIG. 1.

Description of the present application is only an embodiment for structural or functional description, the scope of the disclosed technology should not be construed as limited by the embodiments described in the text. That is, the embodiments may be variously modified and may have various forms, and thus the scope of the disclosed technology should be understood to include equivalents capable of realizing the technical idea.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is referred to as being "connected" to another component, it should be understood that there may be other components in between, although it may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that the other component does not exist. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring", should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosed technology belongs. Generally, the terms defined in the dictionary used are to be interpreted as being consistent with the meaning in the context of the related art, and should not be interpreted as having ideal or excessively formal meanings unless clearly defined in the present application.

1 is a cross-sectional view showing a gas insulated switchgear according to an embodiment of the disclosed technology.

Referring to FIG. 1, the gas insulated switchgear 100 includes first and second flanges 110 and 120, a movable contact 130, a terminal 140, and a fixed contact 150.

The first and second flanges 110, 120 are arranged vertically. An extension to one end of the first flange 110 and an extension to one end of the second flange 120 intersect each other. Here, the first and second flanges 110 and 120 may constitute an enclosure of the gas insulated switchgear 100.

The movable contact 130 may be used to control the switching state of the gas insulated switchgear 100. In one embodiment, the movable contact 130 may be rotated by a handle (not shown), and the gas insulated switchgear 100 may be in an energized state, a disconnected state, or a ground state according to the rotation of the movable contact 130. Can be set.

The terminal 140 is formed by processing a part of the edge of the gas insulated switchgear 100 into an inclined surface, and includes a contact 142, a contact connector 144, and first and second connectors 146 and 148. One end of the first flange 110 and one end of the second flange 120 are connected. In one embodiment, terminal 140 may correspond to a ground terminal. The contact 142 may be connected with the movable contact 130. If the movable contact 130 and the contact 142 are connected by the rotation of the movable contact 130, current flows to the ground terminal (not shown) through the contact 142 and the contact connecting portion 144. As a result, the gas insulated switchgear 100 may be set to the ground state. In one embodiment, the first connection portion 146 may be disposed parallel to the first flange 110 and coupled, and the second connection portion 148 may be disposed on the extension of the second flange 120 and coupled. have.

The fixed contact 150 is for energizing a current, and in one embodiment, the fixed contact 150 may be connected to the bus bar. When the movable contact 130 and the fixed contact 150 are connected according to the rotation of the movable contact 130, current may flow in a main line along the fixed contact 150 and the movable contact 130.

FIG. 2 is a partial detailed view of a terminal in the gas insulated switchgear of FIG. 1.

Referring to FIG. 2, the terminal 140 includes a contact 142, a contact connecting portion 144, and first and second connecting portions 146 and 148, and the terminal 140 includes the first flange 110 of the first flange 110. One end and one end of the second flange 120 are connected.

In one embodiment, the first connector 146 may form an angle α of 90 degrees or less (ie, an angle between the line segment 210 and the line segment 220) from the parallel line 210 of the second flange 120. In one embodiment, each α may be designed to reduce the size of the enclosure of the gas insulated switchgear 100. For example, the angle α may correspond to 45 degrees.

In one embodiment, the contact connecting portion 144 may form an angle β (ie, an angle between the line segment 210 and the line segment 230) from the parallel line 210 of the second flange 120, and the angle β may be (α + 90). May correspond to In one embodiment, each β may be designed to shorten the length of the contact connecting portion 144, the shortened length of the arc in the gas insulated switchgear 100 by reducing the rotation length of the movable contact 130 It can provide a structural advantage to the electromagnetic force when it occurs. For example, if angle α corresponds to 45 degrees, angle β may correspond to 135 degrees.

The disclosed technique may have the following effects. It is to be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, as it is not meant to imply that a particular embodiment should include all of the following effects or only the following effects.

The gas insulated switchgear according to an embodiment may reduce the size of the enclosure by forming an angle at the terminal between the flanges. That is, the gas insulated switchgear can form a terminal and a contact connecting portion at angles α and β, respectively, to reduce the size of the enclosure. Therefore, it is possible to reduce the material of the enclosure, the weight of the enclosure consumed in the gas insulated switchgear can reduce the manufacturing cost.

The gas insulated switchgear according to one embodiment may be designed to shorten the length of the contact connecting portion by the angle β, and this shortened length may provide a structural advantage to the electromagnetic force in the event of an accident by reducing the rotation length of the movable contact. have.

Although described above with reference to the preferred embodiment of the present application, those skilled in the art various modifications and changes to the present application without departing from the spirit and scope of the present application described in the claims below I can understand that you can.

100: gas insulated switchgear 110: first flange
120: second flange 130: movable contact
140: terminal 142: contact
144: contact connecting portion 146: first connecting portion
148: second connection portion 150: fixed contact

Claims

First and second flanges, wherein the first and second flanges are disposed vertically and intersect on one end of extension to each of the first and second flanges;
Operation contactor; And
A gas insulated switchgear comprising a terminal which is connected to one end of each of the first and second flanges by machining a corner of the gas insulated switchgear into an inclined surface, the terminal including a contact that can be connected to the movable contact.

The terminal of claim 1, wherein the terminal is
First and second connecting portions connected to one end of each of the first and second flanges, the first connecting portion forming an angle α (where α is 90 degrees or less) from a parallel line of the second flange. Gas insulated switchgear, characterized in that.

The terminal of claim 2, wherein the terminal is
And a contact connecting portion for connecting the contact and forming an angle β (the β is 90 + α) from the parallel line.

The method of claim 2, wherein the first connection portion
The gas insulated switchgear is disposed parallel to the first flange, the second connecting portion is disposed on the extension line of the second flange and coupled.