CN216215411U

CN216215411U - Detachable structure for high-voltage switch combined electrical appliance

Info

Publication number: CN216215411U
Application number: CN202122363015.2U
Authority: CN
Inventors: 王昱心; 崔杰; 吴洁月
Original assignee: Shanghai Sieyuan High Voltage Switchgear Co ltd
Current assignee: Shanghai Sieyuan High Voltage Switchgear Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-05
Anticipated expiration: 2031-09-28

Abstract

The utility model belongs to the field of circuit transmission, and discloses a detachable structure for a high-voltage switch combined electrical appliance, which can greatly simplify the isolation operation of a voltage transformer, an arrester and a main circuit, thereby greatly reducing the additional labor capacity of operators, and greatly reducing the additional electrical safety risk.

Description

Detachable structure for high-voltage switch combined electrical appliance

Technical Field

The utility model belongs to the field of circuit transmission, and particularly relates to a detachable structure for a high-voltage switch combined electrical appliance.

Background

The gas insulated metal enclosed switchgear (hereinafter referred to as GIS switchgear for short) is one of important power transmission and transformation equipment for a power grid, and is filled with insulating gas for electrically connecting a main circuit loop, a voltage transformer and a lightning arrester with each other, and the safety and reliability of the gas insulated metal enclosed switchgear are important for the safe operation of the power grid. GIS combined electrical apparatus is because of its compact structure, area is little, environmental tolerance ability is strong, operation safety, appearance advantage such as pleasing to the eye, has been widely used in the transformer substation in recent years. All the compartments are electrically and organically combined through the main bus, and the measurement and maintenance compartments are widely used.

At present, GIS combined electrical apparatus is after the on-the-spot installation is accomplished or is overhauld, in order not to cause because of misoperation leads to electric accident, must carry out insulation test and verify, and concrete operation is: and carrying out an insulation test on the premise that the voltage transformer and the lightning arrester are isolated from the main circuit loop, and then installing the voltage transformer and the lightning arrester after the test is finished.

However, the following disadvantages exist in such an operation mode: isolation of the voltage transformer, the lightning arrester and the main circuit loop increases complexity of insulation test operation, so that operators pay extra labor and extra electrical safety risks are increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the detachable structure for the high-voltage switch combined electrical appliance, which can greatly simplify the isolation operation of the voltage transformer, the lightning arrester and a main circuit loop, thereby greatly reducing the extra labor capacity of operators and greatly reducing the extra electrical safety risk.

In order to achieve the purpose, the utility model provides the following technical scheme:

a detachable construction for a high-voltage switch combined electrical apparatus for electrically connecting a main circuit loop, a voltage transformer and a lightning arrester with each other, characterized by comprising: the shell assembly comprises a shell body with a shell opening and a shell cover arranged on the shell opening in a covering mode, and a first conducting head, a second conducting head and a third conducting head which respectively correspond to the main circuit loop, the voltage transformer and the lightning arrester are arranged in the shell body; and the conduction assembly comprises an electric connection piece made of a conductive material, and the first conduction head, the second conduction head and the third conduction head are all detachably and mechanically connected with the electric connection piece.

Preferably, the conducting assembly further comprises at least one cylindrical sleeved conductor, and the at least one sleeved conductor is correspondingly movably sleeved on one or more of the first conducting head, the second conducting head and the third conducting head.

Furthermore, the first conduction head, the second conduction head and the third conduction head are distributed in a T shape, the number of the sleeved conductors is two, and the two sleeved conductors are respectively sleeved on the second conduction head and the third conduction head correspondingly and movably.

Still further, the one end of two cup joint conductors all has cup joints the opening, and the other end is the connection seal face, and two cup joint conductors correspond respectively through cup jointing movably the cup joint of opening.

Further, first lead-through head, second lead-through head and third lead-through head all are the column, and one or more cover wherein is equipped with from expanding spring, and at least one cup joints the conductor and corresponds movably through cup jointing from expanding spring.

Preferably, the utility model further comprises a monitoring barometer and a bidirectional air valve, the number of the shell cover is one, the monitoring barometer and the bidirectional air valve are both positioned outside the shell assembly, and the monitoring barometer and the bidirectional air valve are both communicated with the inside of the shell assembly through the shell cover.

Compared with the prior art, the utility model has the beneficial effects that:

1. because the shell assembly comprises the shell body and the shell cover, the shell body is internally provided with the first conducting head, the second conducting head and the third conducting head which respectively correspond to the main circuit loop, the voltage transformer and the lightning arrester; the conducting assembly comprises an electric connecting piece made of a conductive material, the first conducting head, the second conducting head and the third conducting head are all mechanically connected with the electric connecting piece in a detachable mode, the shell cover is opened to detach the electric connecting piece, and the first conducting head, the second conducting head and the third conducting head can be isolated from each other.

2. Because the utility model also comprises the cylindrical sleeved conductor which is sleeved on one or more of the first conducting head, the second conducting head and the third conducting head correspondingly and movably, the distance among the first conducting head, the second conducting head and the third conducting head can be conveniently adjusted through the movably arranged sleeved conductor, so that the mechanical connection and disassembly and assembly of the electric connecting piece and the first conducting head, the second conducting head and the third conducting head are more flexible and convenient.

3. Because the utility model also comprises the monitoring barometer and the two-way air valve which are both positioned outside the shell component and are communicated with the inside of the shell component through the shell cover, the utility model can conveniently fill the shell component with the insulating gas to release the insulating gas through the two-way air valve, and can conveniently monitor the pressure of the insulating gas inside the shell component through the monitoring barometer.

Drawings

Fig. 1 is a schematic plan view of a removable structure for a high-voltage switch combiner according to an embodiment of the present invention;

fig. 2 is a perspective view of a detachable structure for a high-voltage switch combined electrical apparatus according to an embodiment of the present invention.

In the figure: 100. a detachable construction for high-voltage switch combined electrical apparatus, 10, casing subassembly, 11, the shell body, 11A, shell opening, 111, first conducting head, 112, second conducting head, 113, third conducting head, 11B, from expanding spring, 12, cap, 20, lead to the subassembly, 21, electric connector, 22, cup joint the conductor, 30, two-way pneumatic valve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the following embodiments are specifically described in the detachable structure of the high-voltage switch combined electrical apparatus of the utility model with reference to the accompanying drawings, and the description of the embodiments is needed to help understanding the utility model, but the utility model is not limited thereto.

As shown in fig. 1 and 2, the detachable structure 100 for a high voltage switchgear assembly in the present embodiment is filled with an insulating gas therein for electrically connecting a main circuit loop, a voltage transformer, and a surge arrester with each other, and includes a housing assembly 10, a conducting assembly 20, a monitoring barometer (not shown in the drawings), and a bidirectional gas valve 30.

The housing assembly 10 includes a housing body 11 and a housing cover 12.

The case body 11 has a case opening 11A, and the case body 11 has a first via 111, a second via 112, and a third via 113 inside thereof corresponding to the main circuit, the voltage transformer, and the surge arrester, respectively.

Specifically, the inside of the shell body 11 is filled with insulating gas with a predetermined air pressure, the first conduction head 111, the second conduction head 112 and the third conduction head 113 are all in a column shape, the outer surfaces of the second conduction head 112 and the third conduction head 113 are all sleeved with a self-expansion spring 11B, the axes of the first conduction head 111, the second conduction head 112 and the third conduction head 113 are all located on the same plane, the axes of the first conduction head 111 and the second conduction head 112 are overlapped, the axis of the third conduction head 113 is located between the first conduction head 111 and the second conduction head 112, and the axis of the third conduction head 113 is perpendicular to the axis of the first conduction head 111.

The case cover 12 is provided to cover the case opening 11A and seals the inside of the case body 11, specifically, the number of the case cover 12 is one.

The lead through assembly 20 includes an electrical connector 21 of electrically conductive material and at least one sleeved conductor 22.

The first through head 111, the second through head 112 and the third through head 113 are all mechanically connected with the electrical connection piece in a detachable manner, so that the electrical connection piece 21, the first through head 111, the second through head 112 and the third through head 113 are distributed in a T shape.

At least one socket conductor 22 is correspondingly movably sleeved on one or more of the first through-head 111, the second through-head 112 and the third through-head 113, at least one socket conductor 22 is correspondingly movably sleeved through the self-expanding spring 11B, specifically, the number of the socket conductors 22 is two, two socket conductors 22 are respectively correspondingly movably sleeved on the second through-head 112 and the third through-head 113, one end of each of the two socket conductors 22 is provided with a socket opening, the other end of each of the two socket conductors 22 is a connection sealing surface, and the two socket conductors 22 are respectively and correspondingly movably sleeved on the second through-head 112 and the third through-head 113 through the socket openings.

The monitoring barometer and the bidirectional gas valve 30 are both located outside the housing assembly 10, and the monitoring barometer and the bidirectional gas valve 30 are both communicated with the inside of the housing assembly 10 through the housing cover 12, the monitoring barometer is used for monitoring the real-time pressure of the insulating gas inside the housing assembly 10, and the bidirectional gas valve 30 is used for charging the insulating gas inside the housing assembly 10 to release the insulating gas, so that the insulating gas inside the housing assembly 10 is maintained at a predetermined pressure.

The insulation test procedure of the demountable structure 100 for a high-voltage switch assembly is described below with reference to the following examples:

before the insulation test, the insulation gas in the housing assembly 10 is discharged through the two-way gas valve 30, the housing cover 12 is opened with respect to the housing body 11, and the electric connector 21 is detached, so that the first via head 111, the second via head 112, and the third via head 113 are isolated from each other.

After the insulation test, the electrical connection members 21 are installed such that the first through head 111, the second through head 112 and the third through head 113 are electrically connected to each other through the electrical connection members 21, and the case cover 12 is closed on the case body 11, and the insulation gas is filled into the case assembly 10 to a predetermined pressure through the two-way gas valve 30 and the monitor gas pressure gauge.

The above-described embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and changes can be made by those skilled in the art without inventive work within the scope of the appended claims.

Claims

1. A detachable construction for a high-voltage switch combined electrical apparatus for electrically connecting a main circuit loop, a voltage transformer and a lightning arrester with each other, characterized by comprising:

the shell assembly comprises a shell body with a shell opening and a shell cover arranged on the shell opening in a covering mode, and a first conducting head, a second conducting head and a third conducting head which respectively correspond to the main circuit loop, the voltage transformer and the lightning arrester are arranged in the shell body; and

the conduction assembly comprises an electric connection piece made of a conductive material, and the first conduction head, the second conduction head and the third conduction head are mechanically connected with the electric connection piece in a detachable mode.

2. The removable structure for a high-voltage switch assembly according to claim 1, wherein:

wherein the conducting component also comprises at least one cylindrical sleeved conductor,

at least one of the sleeved conductors is correspondingly and movably sleeved on one or more of the first conducting head, the second conducting head and the third conducting head.

3. The withdrawable structure for a high-voltage switch combined electrical apparatus as set forth in claim 2, characterized in that:

wherein the first conduction head, the second conduction head and the third conduction head are distributed in a T shape,

the number of the sleeved conductors is two, and the two sleeved conductors are respectively sleeved on the second conduction head and the third conduction head correspondingly and movably.

4. The withdrawable structure for a high-voltage switch combined electrical apparatus as set forth in claim 3, characterized in that:

the one end of cup jointing the conductor all has the opening of cup jointing, and the other end is the connection seal face, two cup jointing the conductor and correspond respectively through cup jointing the movably cup jointing of opening.

5. The withdrawable structure for a high-voltage switch combined electrical apparatus as set forth in claim 2, characterized in that:

wherein the first conduction head, the second conduction head and the third conduction head are all columnar, one or more of the first conduction head, the second conduction head and the third conduction head are sleeved with self-expanding springs,

at least one sleeved conductor is correspondingly movably sleeved through the self-expansion spring.

6. The removable structure for a high voltage switch assembly of claim 1, further comprising:

a barometer and a two-way air valve are monitored,

the number of the shell covers is one,

the monitoring air pressure meter and the bidirectional air valve are both positioned outside the shell assembly, and the monitoring air pressure meter and the bidirectional air valve are both communicated with the inside of the shell assembly through the shell cover.