KR20220144958A - Bus conductor structure unit for gas insulated switchgear - Google Patents

Abstract

The present invention provides a bus contact conductor unit for a gas-insulated switchgear. The bus contact conductor unit according to an embodiment of the present invention comprises: a first conductor part having an end on one side assembled and coupled to a first spacer inside an outer enclosure and having an end on the other side configured to have a smaller outer diameter and a smaller inner diameter to form a step; and an electricity-conducting contact conductor part assembled to the outer diameter of the end on the other side of the first conductor part by a first hollow part fitted to cover the outer diameter of the end on the other side of the first conductor part and sliding in the longitudinal direction of the first conductor part along the outer diameter of the end on the other side of the first conductor part. The present invention is configured to facilitate length adjustment in a sliding manner and to increase electrical contact strength, thereby increasing durability, stability, and electricity-conducting performance.

Description

BUS CONDUCTOR STRUCTURE UNIT FOR GAS INSULATED SWITCHGEAR

The present invention relates to a busbar contact conductor unit that conducts the current of a gas insulated switchgear, and more particularly, it can be fixed by easily adjusting the length in a sliding manner, while increasing the electrical contact force to improve stability and conduction performance. It relates to a busbar contact conductor unit that has been made available.

BACKGROUND ART In general, a gas insulated switchgear is an electric device that is installed between a circuit between a power source side and a load side of an electrical system to control the flow of current.

Gas insulated switchgear protects the power system and load devices by cutting off the current when artificially opening and closing circuits under normal current conditions or when abnormal currents such as ground faults or short circuits occur in the circuit.

Gas insulated switchgear is generally a bushing unit that receives power from a high voltage power source, a line DS/ES (Disconnector Switch / Earthing Switch), a gas circuit breaker, a bus line DS/ES (DisconnectorSwitch / Earthing Switch), It includes a movable part, a control part, and the like.

Such a gas insulated switchgear uses a conductor unit as a conductive path of an ultra-high voltage device, and is configured in a form in which a conductor unit forming a current path is accommodated in an enclosure or a tank case. In addition, the conductor units accommodated in the enclosure or tank case are physically and electrically connected to each other with a spacer or connector inside the enclosure or tank case.

Accordingly, the conductor unit accommodated in an enclosure or tank case should not be deformed or damaged due to the electromagnetic force generated during energization or the self-weight of the conductor itself. performance must be satisfied. At this time, the energization performance should be maintained without being deformed or damaged even by external deformation or external force of the enclosure or tank case.

However, the conventional gas insulated switchgear periodically inspects, manages, and replaces the enclosure and the conductor unit. There was a problem that replacement and maintenance were difficult because they had to be replaced or an auxiliary conductor had to be connected.

As such, when a plurality of conductor units and auxiliary conductors are connected and arranged according to the length of the enclosure or tank case, the durability is inevitably weakened, and the assembly/disassembly process for management and inspection is complicated, so installation, maintenance, and There is a problem that the repair process is all difficult.

The present invention is to solve the above problems, and to provide a busbar contact conductor unit for a gas insulated switchgear capable of increasing the electrical contact force while allowing it to be fixed by easily adjusting the length in a sliding manner and an application structure thereof. There is a purpose.

In addition, it is an object to provide a busbar contact conductor unit for a gas insulated switchgear and an application structure thereof, which makes it easy to assemble/disassemble for inspection and management, thereby simplifying installation, maintenance, and repair processes. .

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

A busbar contact conductor unit for a gas insulated switchgear according to an embodiment of the present invention for achieving the above object has one end binding and assembly with the first spacer inside the enclosure, and the other end has smaller outer and inner diameters. It is assembled to the outer diameter of the other end of the first conductor part by the first conductor part having a step formed so as to be stepped, and the first hollow part fitted to cover the outer diameter of the other end of the first conductor part, and the outer diameter of the other end of the first conductor part and a energized contact conductor portion slid along the longitudinal direction of the first conductor portion.

One end of the first conductor part is assembled to the first spacer fixedly disposed on the inner surface of one side of the enclosure, and the other end of the energized contact conductor part faces the first spacer and engages with the energized connector disposed on the corresponding second spacer. or configured to be separated.

The energized contact conductor portion is fitted with a first hollow portion formed to correspond to the outer diameter of the center of the other side of the first conductor portion to cover the outer diameter of the other end and the outer diameter of the center of the first conductor portion, and is formed to correspond to the outer diameter of the other end of the first conductor portion. The second hollow portion is fitted to cover the outer diameter of the other end of the first conductor portion, so that the first and second hollow portions are assembled to the outer diameter of the other end of the first conductor portion.

The energized contact conductor portion is in electrical contact with the outer diameter of the other end of the first conductor portion on the inner surface of the second hollow portion to at least one first bell spring for allowing the first conductor portion to be energized, and a energized contact terminal in electrical contact with the energized connector. It further includes a fastening screw groove formed and fastened to the connection screw of the energized connector.

At least one energized connector is fixedly disposed on the second spacer so as to correspond to the longitudinal direction of each busbar contact conductor unit, and is in electrical contact with the energized contact terminal of the other side of each busbar contact conductor unit according to a change in length of each busbar contact conductor unit. do.

In addition, the gas insulated switchgear according to an embodiment of the present invention for achieving the above object is a cylindrical or polygonal tubular enclosure whose length in the longitudinal direction is variable or disassembled, and the inside of the enclosure is slid in the longitudinal direction. at least one bus bar contact conductor unit accommodated in the enclosure and arranged to be electrically energized within the enclosure, and at a position corresponding to the longitudinal direction of each bus bar contact conductor unit to electrically connect with the energized contact terminal of the other side of each bus bar contact conductor unit and at least one energized connector to be contacted.

The busbar contact conductor unit is configured such that one end is bound and assembled with the first spacer inside the enclosure, and the other end is configured so that the outer and inner diameters are smaller. It is assembled to the outer diameter of the other end of the first conductor part by the first hollow part fitted so as to cover it, and includes an energized contact conductor part slid in the longitudinal direction of the first conductor part along the outer diameter of the other end of the first conductor part.

The enclosure comprises a cylindrical or polygonal tubular assembly type connector or tank case, and a bellows coupled to a longitudinal section of the cylindrical or polygonal tubular connector or tank case, wherein the assembled first conductor part and the energized contact conductor part are connected It is accommodated inside the tube or tank case and bellows and is electrically energized.

The busbar contact conductor unit for a gas insulated switchgear according to an embodiment of the present invention having the various technical characteristics as described above is configured to be easy to adjust the length in a sliding manner and to increase the electrical contact force to increase durability, stability and energization performance. can

In addition, the busbar contact conductor unit for a gas insulated switchgear according to an embodiment of the present invention facilitates assembly/disassembly for management, thereby improving the convenience of installation, maintenance, and repair processes.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a configuration diagram specifically showing a gas insulated switchgear and a bus bar contact conductor unit according to an embodiment of the present invention.
FIG. 2 is a cross-sectional configuration diagram specifically illustrating an energized connection structure of the bus bar contact conductor unit shown in FIG. 1 .
FIG. 3 is a configuration diagram specifically illustrating a separation structure of the bus bar contact conductor unit shown in FIG. 1 .
FIG. 4 is a cross-sectional configuration diagram specifically illustrating an electrical separation form of the bus bar contact conductor unit shown in FIG. 3 .

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

In the present application, the first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are only used to distinguish one component from other components, and unless otherwise stated, the first component may be the second component, of course.

In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, and some components or some steps thereof. It should be construed that they may not be included, or may further include additional components or steps. Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise.

Hereinafter, a busbar contact conductor unit for a gas insulated switchgear of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram specifically showing a gas insulated switchgear and a bus bar contact conductor unit according to an embodiment of the present invention. And, FIG. 2 is a cross-sectional configuration diagram specifically showing the energized connection structure of the bus bar contact conductor unit shown in FIG. 1 .

1 and 2 , the gas insulated switchgear of the present invention is an enclosure 100 configured to be disassembled or configured to be variable in length, and at least one busbar contact conductor unit 120 accommodated in the inside of the enclosure 100 . ), first and second spacers 110 and 150 , and at least one energized connector 140 .

The enclosure 100 constituting the outer shape of the gas insulated switchgear may be configured in a polygonal cylindrical shape such as a cylinder or a square.

The enclosure 100 may be composed of a cylindrical or polygonal tubular assembly type connection pipe or tank case. In addition, the enclosure 100 is configured in a form in which a bellows is coupled to a longitudinal section of a cylindrical or polygonal tubular connection pipe or tank case, so that the length in the longitudinal direction can be varied by the bellows.

When the enclosure 100 is composed of an assembled connection pipe or a tank case, the bus bar contact conductor unit 120 must be checked by disassembling or disassembling it when inspecting and replacing the bus bar contact conductor unit 120 . However, if the enclosure 100 is configured in a form in which a bellows is coupled to a cylindrical or polygonal tubular connection pipe or a longitudinal section of a tank case, the busbar contact conductor unit 120 by reducing or adjusting the length with a bellows during inspection and replacement. )can confirm.

At least one busbar contact conductor unit 120 is accommodated inside the enclosure 100 in a longitudinally slidable form, and the length thereof is variable and adjusted between the first spacer 110 and the energized connector 140 . It is fixed and configured to be energized.

Specifically, each bus bar contact conductor unit 120 includes a first conductor part 121 fixed in the longitudinal direction inside the enclosure 100, and a first conductor part ( By sliding in the longitudinal direction of 121), it is configured to include an energized contact conductor part 130 whose energized contact length is adjusted.

The first spacer 110 is fixedly disposed on one inner surface of the enclosure 100 to fix one end of each bus bar contact conductor unit 120 , that is, one end of the first conductor part 121 . One end of the first spacer 110 and the first conductor part 121 may be assembled by at least one binding member such as an assembly screw.

The second spacer 150 is fixedly disposed at a position opposite to the first spacer 110 in the other direction of the enclosure 100 .

At least one energized connector 140 is fixedly disposed on the second spacer 150 at a position facing each of the bus bar contact conductor units 120 to correspond to the longitudinal direction of the bus bar contact conductor unit 120. Accordingly, each energized The connector 140 changes the length of each bus bar contact conductor unit 120 , that is, the change in the sliding length of the other side conducting contact conductor unit 130 sliding from the first conductor unit 121 . Electrically contacted and fixed to the energized contact terminal 130b of the.

Referring to FIG. 2 , one end of the first conductor part 121 of the busbar contact conductor unit 120 is coupled and assembled with the first spacer 110 inside the enclosure 100 . In addition, the outer diameter and inner diameter of the other end of the first conductor part 121 are smaller than the outer diameter and inner diameter of the central part, so that a step portion is formed at the end in the longitudinal direction.

The energized contact conductor portion 130 of the busbar contact conductor unit 120 is first formed by first and second hollow portions 131 and 132 fitted to cover the central portion of the other side of the first conductor portion 121 and the outer diameter of the step portion. It is assembled to the outer diameter of the other end of the conductor part 121 . Accordingly, the energized contact conductor unit 130 slides along the outer diameter of the other end of the first conductor unit 121 in the longitudinal direction of the first conductor unit 121 .

Specifically, in the energized contact conductor part 130 , the first hollow part 131 formed to correspond to the outer diameter of the center of the other side of the first conductor part 121 has the outer diameter of the other end and the outer diameter of the center of the first conductor part 121 . fitted to cover At this time, the second hollow portion 132 formed to correspond to the outer diameter of the other stepped portion of the first conductor portion 121 is fitted into the outer diameter of the other stepped portion of the first conductive portion 121 , so that the first and second It is assembled to the outer diameter of the other end of the first conductor part 121 by the hollow parts 131 and 132 .

At least one first bell spring 133 in contact with the outer diameter of the other end of the first conductor part 121 is formed on the inner surface of the second hollow part 132 so that the first conductor part 121 can be energized. do. Accordingly, the energized contact conductor part 130 is electrically energized with the outer diameter of the other end of the first conductor part 121 through at least one first bell spring 133 configured on the inner surface of the second hollow part 132 , and , slides in the longitudinal direction of the first conductor part 121 .

On the other hand, in the energized contact terminal 130b of the energized contact conductor portion 130 in electrical contact with the at least one energized connector 140, a fastening screw groove (or, A fastening tab 135) may be further formed.

Accordingly, when the first conductor part 121, the energized contact conductor part 130, and the energized connector 140 are coupled and fixed, the energized contact conductor part 130 slides in the longitudinal direction of the first conductor part 121. It is fastened while rotating so as to correspond to the direction of the screw groove of the fastening screw groove 135 in the process. Accordingly, the connection screw 142 of the energized connector 140 may be fastened to the fastening screw groove 135 while the energized contact conductor part 130 slides and rotates in the longitudinal direction of the first conductor part 121 . .

Each energized connector 140 is fixedly disposed on the second spacer 150 to face the longitudinal direction in which the energized contact conductor 130 slides.

Specifically, each energized connector 140 is configured inside the guide hollow 144, guide hollow 144 for guiding so that the energized contact terminal 130b of the energized contact conductor part 130 is inserted, so that the contact conductor It includes a connection screw 142 that is fastened or separated from the fastening screw groove 135 of the part 130 , and a support part 141 for fixing and supporting the connection screw 142 .

In addition, each energized connector 140 is configured on the inner surface of the guide hollow part 144 and is in electrical contact with the outer diameter of the energized contact conductor part 130 inserted and fastened into the guide hollow part 144 . A second bell spring 145 may be further included.

Accordingly, each energized connector 140 may be electrically energized with the outer diameter of the other end of the energized contact conductor 130 through at least one second bell spring 145 configured on the inner surface of the guide hollow portion 144 . have.

Alternatively, each energized connector 140 may be configured to include at least one connect chip 147 instead of at least one second bell spring 145 . That is, each energized connector 140 is configured on the inner surface of the guide hollow part 144 and is in electrical contact with the outer diameter of the energized contact conductor part 130 inserted and fastened into the guide hollow part 144 . It may be configured to include a tektt chip 147 .

FIG. 3 is a configuration diagram specifically illustrating a separation structure of the bus bar contact conductor unit shown in FIG. 1 . And, FIG. 4 is a cross-sectional configuration diagram specifically showing the form of electrical separation of the bus bar contact conductor unit shown in FIG. 3 .

As shown in FIG. 3 , in the process of checking and checking the bus bar contact conductor unit 120 , the length of the enclosure 100 may be shortened and contracted and changed. In this case, the end of the second spacer 150 in the direction of the bellows 105 moves and contracts in the direction of the arrow B, so that the energized contact conductor 130 and the energized connector 140 can be opened.

When the energized contact conductor 130 and the energized connector 140 are opened by the bellows 105 moved in the direction of the arrow B in FIG. 3 , as shown by part A2 of FIG. 4 , the energized contact conductor 130 . may be electrically separated from the energized contact conductor 130 and the energized connector 140 while rotating in the direction of the C arrow. In this case, as the energized contact conductor unit 130 moves in the direction of the arrow B, the coupling length between the first conductor unit 121 and the energized contact conductor unit 130 is shortened.

Next, when the first conductor part 121, the energized contact conductor part 130, and the energized connector 140 need to be replaced, the other first conductor part 121 and the energized contact conductor having a variable coupling length. It can be easily replaced with the part 130 or the like. That is, when replacement of the first conductor part 121 , the energized contact conductor part 130 , and the energized connector 140 is required, the length of the enclosure 100 is contracted without disassembling or detaching the enclosure 100 . The first conductor part 121 , the energized contact conductor part 130 , and the energized connector 140 may be opened. In addition, accessories such as the first conductor part 121 , the energized contact conductor part 130 , and the energized connector 140 can be easily replaced with the enclosure 100 in an open state.

As described above, the busbar contact conductor unit 120 for a gas insulated switchgear according to an embodiment of the present invention is configured to be easy to adjust the length in a sliding manner and to increase the electrical contact force, thereby providing durability, stability and energization performance. can increase

In addition, the busbar contact conductor unit 120 for a gas insulated switchgear according to an embodiment of the present invention facilitates assembly/disassembly for management, thereby improving the convenience of installation, maintenance, and repair processes.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those of ordinary skill in the art to which various modifications and equivalent other embodiments are possible. will understand Accordingly, the true technical protection scope of the present invention should be defined by the following claims.

100: enclosure
110: first spacer
120: at least one busbar contact conductor unit
121: first conductor part
130: energized contact conductor portion
140: at least one energized connector
150: second spacer

Claims (9)

a first conductor part having one end coupled and assembled with the first spacer inside the enclosure, and the other end being configured to have smaller outer and inner diameters to form a step difference;
It is assembled to the outer diameter of the other end of the first conductor part by a first hollow part fitted to cover the outer diameter of the other end of the first conductor part, and the length of the first conductor part along the outer diameter of the other end of the first conductor part A busbar contact conductor unit comprising a live contact conductor portion sliding in the direction.
The method of claim 1,
The enclosure is
A cylindrical or polygonal tubular assembly type connection pipe or tank case; and
A cylindrical or polygonal cylindrical connecting pipe or a bellows coupled to the longitudinal section of the tank case,
The assembled first conductor part and the energized contact conductor unit are accommodated in the connecting pipe or the tank case and the bellows and electrically energized.
3. The method of claim 2,
One end of the first conductor part is
Assembled to a first spacer fixedly disposed on one inner surface of the enclosure,
The other end of the energized contact conductor is
A busbar contact conductor unit configured to be engaged with or separated from a energized connector disposed in a second spacer corresponding to the first spacer.
3. The method of claim 2,
The energizing contact conductor portion
A first hollow portion formed to correspond to the outer diameter of the center of the other side of the first conductor portion is fitted to cover the outer diameter of the other end and the outer diameter of the center of the first conductor portion,
A second hollow portion formed to correspond to the outer diameter of the other end of the first conductor portion is fitted to cover the outer diameter of the other end of the first conductor portion, so that the other side of the first conductor portion is formed by the first and second hollow portions. Busbar contact conductor unit assembled to the outer diameter of the end.
5. The method of claim 4,
The energizing contact conductor portion
at least one first bell spring in electrical contact with the outer diameter of the other end of the first conductor part on the inner surface of the second hollow part so that the first conductor part is energized; and
The busbar contact conductor unit further comprising a fastening screw groove formed in an energized contact terminal in electrical contact with the energized connector and fastened with a connection screw of the energized connector.
6. The method of claim 5,
The energized connector is
Bus bar contact conductors fixedly disposed on the second spacer to correspond to the longitudinal direction of each bus bar contact conductor unit and electrically contacted with the energized contact terminal according to a change in length of the assembled first conductor part and the energized contact conductor part unit.
A cylindrical or polygonal cylindrical enclosure that is disassembled or has a variable length in the longitudinal direction;
at least one busbar contact conductor unit accommodated in the enclosure in a longitudinal direction and disposed to be electrically energized within the enclosure; and
and at least one energized connector disposed at a position corresponding to the longitudinal direction of each busbar contact conductor unit and electrically contacted with the energized contact terminal of the other side of each busbar contact conductor unit.
8. The method of claim 7,
The busbar contact conductor unit is
a first conductor part having one end coupled and assembled with the first spacer inside the enclosure, and the other end being configured to have smaller outer and inner diameters to form a step difference;
It is assembled to the outer diameter of the other end of the first conductor part by a first hollow part fitted to cover the outer diameter of the other end of the first conductor part, and the length of the first conductor part along the outer diameter of the other end of the first conductor part A gas insulated switchgear comprising a energized contact conductor portion sliding in the direction.
9. The method of claim 8,
The enclosure is
A cylindrical or polygonal tubular assembly type connection pipe or tank case; and
A cylindrical or polygonal cylindrical connecting pipe or a bellows coupled to the longitudinal section of the tank case,
The assembled first conductor part and the energized contact conductor part are accommodated in the connection pipe, the tank case, and the bellows and are electrically energized gas insulated switchgear.

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