CN217846473U - Test equipment - Google Patents

Abstract

The embodiment of the application relates to the technical field of air insulation switch cabinet tests, in particular to a test equipment for testing an air insulation switch cabinet, which comprises: the high-voltage power supply device comprises a high-voltage input part, a grounding part, a high-voltage output part and a switching assembly, wherein the high-voltage input part is electrically connected with the high-voltage power supply device; the high-voltage output part comprises a first connecting piece, a second connecting piece and a third connecting piece which are respectively used for being electrically connected with three live wires of the air insulation switch cabinet; the switching assembly comprises a first conductive piece electrically connected with the first connecting piece, a second conductive piece electrically connected with the second connecting piece and a third conductive piece electrically connected with the third connecting piece, wherein any one of the first conductive piece, the second conductive piece and the third conductive piece can be selectively and electrically connected with the high-voltage input piece or the grounding piece. The test equipment provided by the embodiment of the application can reduce the probability of electric shock accidents caused by improper manual operation.

Description

Test equipment

Technical Field

The embodiment of the application relates to the technical field of air insulation switch cabinet tests, in particular to test equipment for testing an air insulation switch cabinet.

Background

With the increasing demand of 12kV to 24kV (kV: kV) air-insulated switchgear, the quality requirements of users for the air-insulated switchgear are also gradually increasing.

At present, before the air-insulated switch cabinet leaves factory, the air-insulated switch cabinet needs to be manually tested so as to test each phase of the air-insulated switch cabinet. Specifically, when carrying out manual test, need utilize the manual work to be connected the three live wire of air insulated switchgear with altitude power supply unit in proper order, the workman need carry out the cubic plug to altitude power supply unit promptly to test every phase place of air insulated switchgear.

Therefore, an electric shock accident is easily caused by improper manual operation, and it is therefore highly desirable to provide a testing apparatus to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The purpose of this application embodiment is to provide a test equipment for testing air insulated switchgear, reduces because the manual operation improper and arouse the probability that the electric shock accident takes place.

In order to solve the above problem, an embodiment of the present application provides a test apparatus for testing an air-insulated switchgear, including: the high-voltage power supply device comprises a high-voltage input part, a grounding part, a high-voltage output part and a switching assembly, wherein the high-voltage input part is electrically connected with the high-voltage power supply device; the high-voltage output part comprises a first connecting piece, a second connecting piece and a third connecting piece which are respectively used for being electrically connected with three live wires of the air insulation switch cabinet; the switching component comprises a first conductive piece electrically connected with the first connecting piece, a second conductive piece electrically connected with the second connecting piece, and a third conductive piece electrically connected with the third connecting piece, wherein any one of the first conductive piece, the second conductive piece and the third conductive piece can be selectively and electrically connected with the high-voltage input piece or the grounding piece.

Therefore, when the air insulation switch cabinet needs to be tested, the high-voltage input part is electrically connected with the high-voltage power supply equipment, the first connecting part, the second connecting part and the third connecting part are respectively electrically connected with three live wires of the air insulation switch cabinet, and then the first conductive part, the second conductive part and the third conductive part of the switching assembly can be sequentially electrically connected with the high-voltage input part, so that each live wire of the air insulation switch cabinet can be tested. Therefore, only a worker needs to electrically connect the high-voltage power supply equipment with the high-voltage input piece, namely, the worker only needs to insert and pull the high-voltage power supply equipment once, so that the contact frequency of the worker and the high-voltage power supply equipment is reduced, and the probability of electric shock accidents caused by improper manual operation is reduced; in addition, when testing a plurality of air insulated switchgear, the workman is connected the back with high voltage power supply equipment and high voltage input spare electricity, can be after the whole tests of a plurality of air insulated switchgear finish, again with the electric connection dismantlement between high voltage power supply equipment and the high voltage input spare, when testing a plurality of air insulated switchgear promptly, also only need the workman to carry out once plug to high voltage power supply equipment to reduce because manual operation is improper and arouse the probability that the electric shock accident takes place.

Drawings

FIG. 1 is a schematic structural diagram of a testing apparatus provided in an embodiment of the present application;

FIG. 2 is a side view of another state of the test apparatus provided in accordance with one embodiment of the present application;

FIG. 3 is a side view of a test apparatus provided in example two of the present application;

FIG. 4 is a side view of another state of the test apparatus provided in example two of the present application.

Detailed Description

Some embodiments of the present application provide a test apparatus for testing an air insulated switchgear, comprising: the high-voltage power supply device comprises a high-voltage input part, a grounding part, a high-voltage output part and a switching assembly, wherein the high-voltage input part is electrically connected with the high-voltage power supply device; the high-voltage output part comprises a first connecting piece, a second connecting piece and a third connecting piece which are respectively used for being electrically connected with three live wires of the air insulation switch cabinet; the switching component comprises a first conductive piece electrically connected with the first connecting piece, a second conductive piece electrically connected with the second connecting piece, and a third conductive piece electrically connected with the third connecting piece, wherein any one of the first conductive piece, the second conductive piece and the third conductive piece can be selectively and electrically connected with the high-voltage input piece or the grounding piece.

Therefore, when the air-insulated switch cabinet needs to be tested, the high-voltage input part is electrically connected with the high-voltage power supply equipment, the first connecting part, the second connecting part and the third connecting part are respectively electrically connected with three live wires of the air-insulated switch cabinet, then the first conductive part, the second conductive part and the third conductive part of the switching assembly can be sequentially electrically connected with the high-voltage input part, and therefore each live wire of the air-insulated switch cabinet is tested. Therefore, the high-voltage power supply equipment is electrically connected with the high-voltage input piece only by workers, namely, the workers only need to insert and pull the high-voltage power supply equipment once, so that the contact frequency of the workers and the high-voltage power supply equipment is reduced, and the probability of electric shock accidents caused by improper manual operation is further reduced; in addition, when testing a plurality of air insulated switchgear, the workman is connected the back with high voltage power supply equipment and high voltage input spare electricity, can be after the whole tests of a plurality of air insulated switchgear finish, again with the electric connection dismantlement between high voltage power supply equipment and the high voltage input spare, when testing a plurality of air insulated switchgear promptly, also only need the workman to carry out once plug to high voltage power supply equipment to reduce because manual operation is improper and arouse the probability that the electric shock accident takes place.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical means claimed in the present application can be realized by various changes and modifications of the following embodiments.

Referring to fig. 1 and 2, in an embodiment of the present application, a testing apparatus for testing an air-insulated switchgear includes: a high voltage input member 110 for electrical connection with a high voltage power supply apparatus, a ground member 120 for grounding, a high voltage output member 130, and a switching assembly 140; the high voltage output member 130 comprises a first connecting member 131, a second connecting member 132 and a third connecting member 133 which are respectively used for being electrically connected with three live wires of the air-insulated switchgear; the switching assembly 140 includes a first conductive member 141 electrically connected to the first connecting member 131, a second conductive member 142 electrically connected to the second connecting member 132, and a third conductive member 143 electrically connected to the third connecting member 133, wherein any one of the first conductive member 141, the second conductive member 142, and the third conductive member 143 may be selectively electrically connected to the high voltage input member 110 or the ground member 120.

Thus, when the air-insulated switchgear needs to be tested, the high-voltage input component 110 is electrically connected to the high-voltage power supply equipment, the first connecting component 131, the second connecting component 132 and the third connecting component 133 are electrically connected to three live wires of the air-insulated switchgear, and then the first conductive component 141, the second conductive component 142 and the third conductive component 143 of the switching component are sequentially electrically connected to the high-voltage input component 110, so that each live wire of the air-insulated switchgear is tested.

Specifically, in one embodiment, when the high voltage input element 110 is electrically connected to the high voltage power supply equipment and the first connecting element 131, the second connecting element 132 and the third connecting element 133 are electrically connected to the three live wires of the air-insulated switchgear, the high voltage input element 110 may be electrically connected to the high voltage power supply equipment, and the first conductive element 141, the second conductive element 142 and the third conductive element 143 may be electrically connected to the grounding element 120, so that electric shock may be avoided when a worker electrically connects the first connecting element 131, the second connecting element 132 and the third connecting element 133 to the three live wires of the air-insulated switchgear.

Of course, in another embodiment, the first connecting member 131, the second connecting member 132, and the third connecting member 133 may be electrically connected to three live wires of the air-insulated switchgear, and then the high-voltage input member 110 may be electrically connected to the high-voltage power supply equipment. The application is not limited to the use of the test apparatus.

In some embodiments, a distance between any two of the first conductive member 141, the second conductive member 142, and the third conductive member 143 is no less than 350mm (mm: mm). In this way, a sufficient creepage distance may be provided between any two of the first conductive member 141, the second conductive member 142, and the third conductive member 143, so as to prevent any two of the first conductive member 141, the second conductive member 142, and the third conductive member 143 from being electrically connected, thereby affecting a test result of a testing device.

In some embodiments, the high voltage output member 130 further includes a first insulating sleeve 134 disposed on the first connecting member 131, a second insulating sleeve 135 disposed on the second connecting member 132, and a third insulating sleeve 136 disposed on the third connecting member 133, wherein any two of the first insulating sleeve 134, the second insulating sleeve 135, and the third insulating sleeve 136 have a space therebetween. In this way, electrical connection between any two of the first connecting member 131, the second connecting member 132 and the third connecting member 133 can be effectively prevented.

In some embodiments, the first conductive member 141 is a conductive rod, one end of the first conductive member 141 is rotatably connected to the first connecting member 131, and the other portion of the first conductive member 141 is used to selectively electrically connect to the high voltage input member 110 or the grounding member 120.

The second conductive member 142 is a conductive rod, one end of the second conductive member 142 is rotatably connected to the second connecting member 132, and the other end of the second conductive member 142 is used for selectively electrically connecting to the high voltage input member 110 or the grounding member 120.

The third conductive member 143 is a conductive rod, one end of the third conductive member 143 is rotatably connected to the third connecting member 133, and the other part of the third conductive member 143 is used for selectively electrically connecting to the high voltage input member 110 or the grounding member 120.

In some embodiments, the switching component 140 further comprises: a first driving member 144, a second driving member 145 and a third driving member 146, wherein the first driving member 144 is in transmission connection with the first conductive member 141 and is used for driving the first conductive member 141 to rotate relative to the first connecting member 131, so that the first conductive member 141 is selectively electrically connected to the high voltage input member 110 or the grounding member 120; the second driving member 145 is in transmission connection with the second conductive member 142 and is configured to drive the second conductive member 142 to rotate relative to the second connecting member 132, so that the second conductive member 142 is selectively electrically connected to the high voltage input member 110 or the grounding member 120; the third driving member 146 is in driving connection with the third conductive member 143 and is configured to drive the third conductive member 143 to rotate relative to the third connecting member 133, so that the third conductive member 143 is selectively electrically connected to the high voltage input member 110 or the grounding member 120.

In this manner, any one of the first, second and third conductive members 141, 142 and 143 may be automatically and selectively electrically connected to the high voltage input member 110 or the ground member 120.

In some embodiments, the first driving element 144 is a first driving cylinder, and a piston rod of the first driving cylinder is in transmission connection with the first conductive element 141; the high voltage input member 110 and the ground member 120 are sequentially disposed along a direction parallel to an extending direction of the piston rod of the first driving cylinder. In this way, the first driving cylinder can drive the first conductive member 141 to be selectively electrically connected to the high voltage input member 110 or the grounding member 120. Of course, in this embodiment, the second driving member 145 may be a second driving cylinder, a piston rod of the second driving cylinder is in transmission connection with the second conductive member 142; the third driving member 146 is a third driving cylinder, and a piston rod of the third driving cylinder is in transmission connection with the third conductive member 143. Thereby facilitating selective electrical connection of the second conductive member 142 and the third conductive member 143 with the high voltage input member 110 or the ground member 120.

Specifically, the piston rod of the driving cylinder is in transmission connection with the two ends of the conductive piece, and one end of the conductive piece, which is far away from the connecting piece, is selectively and electrically connected with the high-voltage input piece 110 or the grounding piece 120. In this way, the volume of the test apparatus can be made smaller.

More specifically, in this embodiment, the high voltage input member 110 is located above the ground member 120. In this manner, grounding of the grounding member 120 may be facilitated.

In some embodiments, the piston rod of the driving cylinder is a cylinder insulating rod, so that the cylinder body of the cylinder is insulated from the conductive piece. For example: the piston rod of the first driving member 144 is an air cylinder insulating rod, so that the cylinder body of the first driving member 144 is insulated from the first conductive member 141.

In some embodiments, the assay device further comprises: a pressure equalizing shield 150 surrounding the high pressure input member 110. In this way, the voltage values at various places of the high voltage input member 110 can be made substantially the same.

In some embodiments, the assay device further comprises: a base 160 and a plurality of universal wheels 170 fixed at the bottom of the base 160, wherein the high voltage input member 110, the grounding member 120, the high voltage output member 130 and the switching assembly 140 are all disposed on the base 160. As such, it may be convenient to move the positions of the high voltage input member 110, the ground member 120, the high voltage output member 130, and the switching assembly 140.

Referring to fig. 3 and 4, a second embodiment of the present application provides a testing apparatus for testing an air-insulated switchgear, including: a high voltage input member 210 for electrical connection with a high voltage power supply apparatus, a ground member 220 for grounding, a high voltage output member 230, and a switching assembly 240; the high voltage output member 230 includes a first connecting member 231, a second connecting member (not shown) and a third connecting member (not shown) for electrically connecting to three live wires of the air-insulated switchgear, respectively; the switching assembly 240 includes a first conductive member 241 electrically connected to the first connecting member 231, a second conductive member (not shown) electrically connected to the second connecting member, and a third conductive member (not shown) electrically connected to the third connecting member, wherein any one of the first conductive member 241, the second conductive member, and the third conductive member may be selectively electrically connected to the high voltage input member 210 or the ground member 220.

In some embodiments, the assay device further comprises: a gas tank 250 for containing a dry gas; the high voltage input member 210 has one end located outside the gas box 250 and used for electrically connecting with a high voltage power supply device, and the other end extending into the gas box 250; the ground member 220 has one end extending into the gas box; the first connector 231, the second connector and the third connector each have one end located outside the gas box 250 and used for being electrically connected with a live wire of an air-insulated switchgear, and the other end extending into the gas box 250; the first conductive member 241, the second conductive member, and the third conductive member are all located within the gas box 250.

By containing the dry gas in the gas box 250, any two of the first conductive member 241, the second conductive member, and the third conductive member may be prevented from being electrically connected. The dry gas contained in the gas box 250 may be sulfur hexafluoride.

In some embodiments, the high voltage output member 230 further includes an insulating output sleeve 232, the first connector 231, the second connector and the third connector are all located in the insulating output sleeve 232, one end of the insulating output sleeve 232 is located outside the gas box 250, and the other end of the insulating output sleeve 232 extends into the gas box 250. Thus, the worker can be prevented from touching any one of the first connector 231, the second connector and the third connector, which may cause an electric shock accident.

In some embodiments, the high voltage input member 210 includes a fourth connection member 211 and an insulating input sleeve 212 for accommodating the fourth connection member 211, and the fourth connection member 211 has one end located outside the gas box 250 and used for electrically connecting with a high voltage power supply device, and the other end extending into the gas box 250. Therefore, the electric shock accident caused by the worker touching the fourth connecting member 211 can be avoided.

In some embodiments, the assay device further comprises: a pressure detection device 260 for detecting the pressure in the gas box 250, wherein the detection end of the pressure detection device 260 extends into the gas box 250. Thus, the pressure in the gas box 250 can be known in time, so as to ensure that any two of the first conductive member 241, the second conductive member, and the third conductive member are not electrically connected.

In some embodiments, the first conductive member 241 is a conductive rod, one end of the first conductive member 241 is rotatably connected to the first connecting member 231, and the other end of the first conductive member 241 is used for selectively electrically connecting to the high voltage input member 210 or the grounding member 220.

The second conductive member is a conductive rod, one end of the second conductive member is rotatably connected to the second connecting member, and the other part of the second conductive member is used for selectively electrically connecting to the high voltage input member 210 or the grounding member 220.

The third conductive member is a conductive rod, one end of the third conductive member is rotatably connected to the third connecting member, and the other part of the third conductive member is used for selectively electrically connecting to the high voltage input member 210 or the grounding member 220.

In some embodiments, the switching component 240 further comprises: a first driving member 242, a second driving member (not shown), and a third driving member (not shown), wherein the first driving member 242 is in transmission connection with the first conductive member 241 and is used for driving the first conductive member 241 to rotate relative to the first connecting member 231, so that the first conductive member 241 is selectively electrically connected to the high voltage input member 210 or the grounding member 220; the second driving member is in transmission connection with the second conductive member and is used for driving the second conductive member to rotate relative to the second connecting member, so that the second conductive member is selectively and electrically connected with the high-voltage input member 210 or the grounding member 220; the third driving member is in transmission connection with the third conductive member and is configured to drive the third conductive member to rotate relative to the third connecting member, so that the third conductive member is selectively electrically connected to the high voltage input member 210 or the grounding member 220.

In this manner, any one of the first conductive member 241, the second conductive member and the third conductive member may be automatically selected to be electrically connected to the high voltage input member 210 or the ground member 220.

In some embodiments, the first conductive member 241 is located in the gas box 250, and the first driving member 242 is a first driving cylinder, a piston rod of which extends into the gas box 250 and is in transmission connection with the first conductive member 241.

The second conductive piece is located in the gas box 250, the second driving piece is a second driving cylinder, and a piston rod of the second driving cylinder extends into the gas box 250 and is in transmission connection with the second conductive piece.

The third conductive piece is located in the gas box 250, the third driving piece is a third driving cylinder, and a piston rod of the third driving cylinder extends into the gas box 250 and is in transmission connection with the third conductive piece.

In some embodiments, the assay device further comprises: an insulating member 270; the insulating member 270 is located between the piston rod of the driving cylinder and the conductive member, so that the piston rod of the driving cylinder is insulated from the conductive member. In the present application, the number of the conductive members is three, so the number of the insulating members 270 is also three, and each insulating member 270 is used for insulating the conductive member from the piston rod of the driving cylinder corresponding to the conductive member.

In some embodiments, the assay device further comprises: a moving platform 280, wherein the high voltage input part 210, the grounding part 220, the high voltage output part 230 and the switching assembly 240 are all disposed on the moving platform 280; the moving platform 280 is configured to drive the high voltage input element 210, the grounding element 220, the high voltage output element 230 and the switching assembly 240 to move, so that the first connection element 231, the second connection element and the third connection element of the high voltage output element 230 are electrically connected to three live wires of an air-insulated switchgear, respectively.

Specifically, in one example, the movable platform 280 may include a slide rail fixed on the ground and a slider slidably disposed on the slide rail, and the high voltage input member 210, the grounding member 220, the high voltage output member 230 and the switching assembly 240 are disposed on the slider.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the application, and it is intended that the scope of the application be limited only by the claims appended hereto.

Claims (10)

1. A test equipment for testing air insulated switchgear, comprising: the high-voltage power supply device comprises a high-voltage input part, a grounding part, a high-voltage output part and a switching assembly, wherein the high-voltage input part is electrically connected with the high-voltage power supply device;

the high-voltage output part comprises a first connecting piece, a second connecting piece and a third connecting piece which are respectively used for being electrically connected with three live wires of the air insulation switch cabinet;

the switching component comprises a first conductive piece electrically connected with the first connecting piece, a second conductive piece electrically connected with the second connecting piece, and a third conductive piece electrically connected with the third connecting piece, wherein any one of the first conductive piece, the second conductive piece and the third conductive piece can be selectively and electrically connected with the high-voltage input piece or the grounding piece.

2. The testing apparatus of claim 1, further comprising: a gas box for containing a dry gas; the high-voltage input part is provided with one end which is positioned outside the gas box and is used for being electrically connected with high-voltage power supply equipment, and the other end which extends into the gas box; the grounding piece is provided with one end extending into the gas box; the first connecting piece, the second connecting piece and the third connecting piece are all provided with one end which is positioned outside the gas box and is used for being electrically connected with a live wire of the air-insulated switch cabinet and the other end which extends into the gas box; the first, second, and third conductive members are all located within the gas box.

3. The test apparatus of claim 2, wherein the high voltage output member further comprises an insulated output sleeve, the first, second, and third connectors are located within the insulated output sleeve, one end of the insulated output sleeve is located outside the gas box, and the other end of the insulated output sleeve extends into the gas box.

4. The testing apparatus of claim 2, wherein the high voltage input comprises a fourth connector and an insulating input sleeve housing the fourth connector, the fourth connector having one end located outside the gas box for electrical connection with a high voltage supply apparatus and another end extending into the gas box.

5. The testing apparatus of claim 2, further comprising: and the pressure detection device is used for detecting the pressure in the gas box, and the detection end of the pressure detection device extends into the gas box.

6. The testing apparatus of claim 1, wherein a spacing between any two of said first, second and third electrically-conductive members is no less than 350mm.

7. The testing apparatus of claim 6, further comprising: a pressure equalization housing surrounding the high pressure input.

8. The testing apparatus of claim 1, wherein the first conductive member is a conductive rod, one end of the first conductive member is rotatably connected to the first connecting member, and the other portion of the first conductive member is configured to be selectively electrically connected to the high voltage input member or the grounding member.

9. The test rig of claim 7, wherein the switching assembly further comprises: a first driving member, a second driving member and a third driving member;

the first driving piece is in transmission connection with the first conductive piece and is used for driving the first conductive piece to rotate relative to the first connecting piece, so that the first conductive piece is selectively and electrically connected with the high-voltage input piece or the grounding piece;

the second driving piece is in transmission connection with the second conductive piece and is used for driving the second conductive piece to rotate relative to the second connecting piece, so that the second conductive piece is selectively and electrically connected with the high-voltage input piece or the grounding piece;

the third driving member is in transmission connection with the third conductive member and is used for driving the third conductive member to rotate relative to the third connecting member, so that the third conductive member is selectively and electrically connected with the high-voltage input member or the grounding member.

10. The testing apparatus of claim 1, further comprising: the high-voltage input part, the grounding part, the high-voltage output part and the switching assembly are all arranged on the mobile platform; the moving platform is used for driving the high-voltage input part, the grounding part, the high-voltage output part and the switching assembly to move, so that the first connecting piece, the second connecting piece and the third connecting piece of the high-voltage output part are respectively and electrically connected with three live wires of the air insulation switch cabinet.

Images