KR20160003085U

KR20160003085U - Spacer Structure of Gas Insulated Switchgear

Info

Publication number: KR20160003085U
Application number: KR2020150001363U
Authority: KR
Inventors: 황경민
Original assignee: 엘에스산전 주식회사
Priority date: 2015-03-03
Filing date: 2015-03-03
Publication date: 2016-09-13

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact insulation structure of a gas insulated switchgear, and more particularly, to a spacer structure of a gas insulated switchgear which facilitates assembly and reduces production costs by using an inner conductor formed with a socket.
The spacer structure of the gas insulated switchgear according to one embodiment of the present invention includes: a spacer capable of dividing a unit division of the gas insulated switchgear; An inner conductor penetrating a part of the spacer and having a socket formed outside; And an external conductor protrudingly formed on the socket to engage with the socket.

Description

[0001] The present invention relates to a spacer structure of a gas insulated switchgear,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact insulation structure of a gas insulated switchgear, and more particularly, to a spacer structure of a gas insulated switchgear which facilitates assembly and reduces production costs by using an inner conductor formed with a socket.

Generally, a gas insulated switchgear is installed between a power source side and a load side of an electric system, and when a circuit is open or closed in a normal current state, or when an abnormal current such as a short circuit or a short circuit occurs on the circuit, To protect the power system and the load device, and is mainly used in ultra high-voltage equipment.

Such a gas insulated switchgear (GIS) generally consists of a bushing unit, a circuit breaker (CB), a disconnector switch, a earthing switch, a moving part, and a control unit, .

Spacers are provided between the units so as to maintain the insulating property by dividing the sections and to support the conductors used in the conductive paths.

Fig. 1 is a longitudinal sectional view of a spacer of a gas insulated switchgear according to the prior art, and Fig. 2 shows a state where an external conductor is coupled to the spacer of Fig.

The spacer of the gas insulated switchgear according to the related art has a spacer 1 formed in the form of a disk, a plurality of conductor supporting portions 2 at which a conductor can be supported at a central portion thereof, and a flange portion 3 formed at an outer portion thereof do.

A plurality of bolt holes 4 are formed in the flange portion 3 so as to be coupled to each unit and a ground groove 5 to which a ground wire can be mounted is vertically formed in the bolt hole 4.

A plurality of coupling bolt grooves 6a are provided on both sides of the conductor 6 coupled to the conductor supporting portion 2.

The connecting conductor 7 is coupled to the conductor 6 by a bolt 7a. The outer conductor 8 is connected to the conductor 6 via a connecting conductor 7. At this time, a contact 9 is provided to connect and support the external conductor 8 and the connection conductor 7.

The contactor 9 is provided with a washer or plate 9a to be interposed between the external conductor 8 and the connecting conductor 7, a ring 9a for enclosing and supporting the external conductor 8 and the plate 9a and the connecting conductor 7, A plurality of ring-type springs for providing a contact pressure while enclosing the contact chip 9b, and a shield 9d for shielding and protecting the outer shape of the contact chip 9b, .

However, since the spacer of the gas insulated switchgear according to the prior art requires the connecting conductor 7 and the contactor 9 in the inter-conductor coupling structure, the structure is complicated and the production cost is increased.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a spacer of a gas insulated switchgear which can be easily assembled with an inner conductor and an outer conductor without application of a contactor, Structure.

The spacer structure of the gas insulated switchgear according to one embodiment of the present invention includes: a spacer capable of dividing a unit division of the gas insulated switchgear; An inner conductor penetrating a part of the spacer and having a socket formed outside; And an external conductor protrudingly formed on the socket to engage with the socket.

Here, the connecting portion is coupled to the connecting portion to provide a supporting force between the socket and the coupling portion.

Further, the contact pressure conductor is characterized by being constituted by a plurality of ring bodies.

Further, a peripheral groove is formed in the outer circumferential surface of the coupling portion, into which the contact-voltage conductor can be inserted.

In addition, a gap is formed between the socket and the coupling part at a predetermined distance.

According to the spacer structure of the gas insulated switchgear according to an embodiment of the present invention, since the socket is formed in the inner conductor integrally coupled to the spacer, the outer conductor can be directly coupled, so that no separate contact, There is an effect that it can be easily performed. As a result, there is an effect that components are reduced, productivity is improved, and cost of production is reduced.

1 is a longitudinal sectional view of a spacer of a gas insulated switchgear according to the prior art.
FIG. 2 shows a state where an external conductor is coupled to the spacer of FIG.
3 is a longitudinal sectional view of a spacer of the opening / closing apparatus according to an embodiment of the present invention.
4 is an exploded perspective view of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to illustrate the present invention in such a manner that a person skilled in the art can easily carry out the present invention. And does not mean that the technical idea and category of the design is limited.

FIG. 3 is a longitudinal sectional view of a spacer of the opening and closing device according to one embodiment of the present invention, and FIG. 4 is an exploded perspective view of FIG. The spacer structure of the gas insulated switchgear according to one embodiment of the present invention will now be described in detail with reference to the drawings.

The spacer structure of the gas insulated switchgear according to one embodiment of the present invention includes a spacer 10 that can divide the unit division of the gas insulated switchgear; An internal conductor (20) penetrating a part of the spacer (10) and having a socket (21) formed on the outside thereof; And an external conductor (30) protrudingly formed at an engaging portion (31) that can be fitted into the socket (21).

The spacer 10 is provided for partitioning each unit of the gas insulated switchgear and for supporting a conductor. The spacer 10 may be made of an insulating material such as epoxy resin. The spacers 10 may be poured into molds and formed in casting form.

The spacer 10 may be formed in an approximate disk shape. A plurality of conductor supporting portions 11 are formed at a central portion of the spacer 10 so that the inner conductor 20 can be coupled thereto. The conductor supporting portion 11 may be bent outward and protruded to both sides. This improves the supporting force against the conductor and improves the self-supporting force of the spacer 10.

A flange portion 12 is formed on an outer frame portion of the spacer 10. The flange portion 12 may be provided with a bolt hole 13 for engaging with each unit. Further, a ground groove 14 through which the ground wire charged into the inside of the flange portion 12 can be inserted vertically from the bolt hole 13 may be formed.

A shield ring 15 may be provided at the lower end of the ground groove 14 to reduce the electric field around the ground line.

An inner conductor (20) is integrally coupled to the spacer (10) and connected to the inner or left unit of the spacer (10). The spacer 10 can be manufactured in the form of being cast around the inner conductor 20.

The inner conductor 20 is formed with a socket 21 to which the outer conductor 30 can be coupled. The socket 21 may be formed as an insertion groove formed on the outer side of the inner conductor 20.

The inner conductor 20 may be provided with a convex portion 22, the outer circumferential surface of which partially protrudes. The internal conductor 20 can be coupled to the spacer 10 with excellent support force by the convex portion 22. [

The outer conductor 30 is a conductor that is coupled to the inner conductor 20 from the outside of the spacer 10. At the distal end of the outer conductor 30, a coupling portion 31 is protruded. The engaging portion 31 may be formed smaller in diameter than the other portion of the outer conductor 30. The engaging portion 31 is a portion to be inserted into the socket 21. At this time, the outer diameter of the coupling portion 31 is formed to be smaller than the inner diameter of the socket 21 so that a predetermined distance can be formed.

A circumferential groove 32 may be formed on the circumferential surface of the coupling portion 31 along the circumferential surface thereof, on which the contact conductor 40 may be installed.

The contact conductor (40) is installed in the coupling portion (31) of the external conductor (30). The contact pressure conductor 40 may be formed as a ring body so as to be fitted in the peripheral groove 32 of the engaging portion 31. A plurality of the contact conductors 40 may be provided in the coupling portion 31. The internal conductor 20 and the external conductor 30 are engaged with each other by the contact conductor 40 and have a binding force. The contact conductor 40 may be of a spring type so as to have a holding force between the inner conductor 20 and the outer conductor 30 in a tight state. The contact conductor 40 may be made of a conductor having excellent conductivity. The internal conductor 20 and the external conductor 30 are supported by the contact conductor 40 without being separated from each other in a coupled state and current can be conducted.

According to the spacer structure of the gas insulated switchgear according to an embodiment of the present invention, since the socket 21 is formed in the internal conductor 20 integrally joined to the spacer 10, the external conductor 30 can be directly coupled There is an effect that the coupling can be easily performed without a separate contact, a contact, and a connection conductor. Accordingly, there is an effect that components are reduced, productivity is improved, and cost of production is reduced.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the invention, It is obvious that the claims fall within the scope of the claims.

10 spacer 11 conductor support
12 Flange section 13 Bolt hole
14 Ground groove 15 Shield ring
20 internal conductor 21 socket
22 convex portion 30 outer conductor
31 connecting portion 32 circumferential groove
40 contact conductor

Claims

A spacer capable of dividing a unit division of the gas insulated switchgear;
An inner conductor penetrating a part of the spacer and having a socket formed outside; And
And an outer conductor protrudingly formed on an outer circumferential surface of the socket to engage with the socket.

2. The spacer structure of claim 1, wherein the connecting portion is coupled to the coupling portion to provide a supporting force between the socket and the coupling portion.

3. The spacer structure of a gas insulated switchgear according to claim 2, wherein the contact conductor is formed of a plurality of ring bodies.

The spacer structure of a gas insulated switchgear according to claim 2, wherein an outer circumferential surface of the coupling portion is formed with a circumferential groove into which the voltage-contacting conductor can be inserted.

The spacer structure of a gas insulated switchgear according to claim 1, wherein a gap is formed between the socket and the coupling part at a predetermined distance.