Medium-voltage switch cabinet with partial discharge measurement effect

Abstract

The invention discloses a medium-voltage switch cabinet with a partial discharge measurement effect, relates to the technical field of switch cabinets, and aims to solve the problems that an existing switch cabinet cannot fully measure partial discharge at different heights, cannot improve the lower interest rate of measurement and cannot perform self-locking on measurement equipment. According to the key points of the technical scheme, the device comprises a cabinet body shell, a rotatable measuring assembly and a lifting assembly, and the rotatable measuring assembly and the lifting assembly are both arranged outside the cabinet body shell. Each part of the switch cabinet body with different heights can be more fully measured, the measuring sufficiency can be improved, the safety of the switch cabinet in use can be protected, the measuring time can be greatly shortened, the measuring efficiency can be improved, the used measuring equipment can be automatically locked and protected, and the measuring efficiency can be improved. The use safety of the measuring equipment can be improved, and the use is convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of switchgear, specifically to a medium-voltage switchgear with a partial discharge measurement effect. Background Art

[0002] A switchgear is an electrical device that can provide conditions for the processes of power generation, transmission, distribution, and power conversion in the power system, and can be used to switch, control, and protect electrical equipment. Different instruments are provided inside the switchgear, and circuit breakers, disconnectors, load switches, operating mechanisms, and instrument transformers can all be used inside the switchgear. According to different voltage levels, switchgears can be divided into high-voltage switchgears, medium-voltage switchgears, and low-voltage switchgears. In order to protect the safety of the medium-voltage switchgear during use and the safety of electricity consumption, a medium-voltage switchgear with a partial discharge measurement effect is required.

[0003] When the existing switchgear is in use, it simply measures partial discharges at several positions manually using a detection instrument, and cannot measure all positions on the switchgear cabinet at different heights more fully, which is likely to cause the problem of insufficient measurement positions and the problem of a large amount of work in the measurement process, taking a long time, being not conducive to improving the measurement efficiency. At the same time, it cannot automatically lock and protect the measurement equipment after use, being not conducive to improving the use safety of the measurement equipment.

[0004] In summary, the present invention provides a medium-voltage switchgear with a partial discharge measurement effect to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a medium-voltage switchgear with a partial discharge measurement effect, and its advantages are that it can measure all positions on the switchgear cabinet at different heights more fully, can improve the sufficiency of the external measurement of the switchgear, the time of the measurement process can be greatly shortened, being conducive to improving the measurement efficiency, and at the same time can automatically lock and protect the measurement equipment after use, being conducive to improving the use safety of the measurement equipment.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A medium-voltage switchgear cabinet with partial discharge measurement effect, comprising a cabinet body shell, a rotatable measurement component and a lifting component. The rotatable measurement component and the lifting component are both installed outside the cabinet body shell. The rotatable measurement component includes a slide rail sleeved outside the cabinet body shell and a partial discharge measuring instrument located on one side of the cabinet body shell. A chute is opened on the slide rail, and a first gear and a rotating motor are installed in the chute. A tooth groove meshing with the first gear is opened in the chute. The output shaft of the rotating motor is fixedly connected with the first gear and an electric telescopic plate is fixedly installed at the top. The telescopic end of the electric telescopic plate is fixedly connected with the partial discharge measuring instrument. The lifting component includes two power structures symmetrically installed on both sides of the cabinet body shell. The power structure includes a toothed plate fixedly connected with the side wall of the cabinet body shell and a double-shaft motor fixedly connected with the bottom surface of the slide rail. Second gears meshing with the toothed plate are fixedly installed on both output shafts of the double-shaft motor.

[0008] Preferably, a self-locking component is installed on one side of the slide rail, and the self-locking component is used to lock the slide rail.

[0009] Preferably, a clamping plate is fixedly installed on the inner side wall of the slide rail. The self-locking component includes a locking plate clamped with the clamping plate and a side plate fixedly connected with the side wall of the cabinet body shell. A bracket sleeved and connected with the locking plate is fixedly installed on the side wall of the side plate. A spring and an electric telescopic rod are installed between the locking plate and the side plate.

[0010] Preferably, a ventilation component is installed above the cabinet body shell, and the ventilation component is used for ventilation and heat dissipation inside the cabinet body shell.

[0011] Preferably, the ventilation component includes a top box fixedly installed on the top of the cabinet body shell. The top box covers the rotatable measurement component. Air inlet holes are symmetrically opened on the side wall of the top box and a wind plate located above the cabinet body shell is fixedly installed inside. An exhaust fan located above the wind plate is fixedly installed inside the top box.

[0012] Preferably, ventilation holes are opened on the side wall of the cabinet body shell.

[0013] Preferably, a box door is installed on the cabinet body shell.

[0014] Preferably, a display screen is fixedly installed on the box door.

[0015] Preferably, a handle is fixedly installed on the box door.

[0016] In summary, the beneficial technical effects of the present invention are:

[0017] 1. By setting up the rotatable measuring component and the lifting component, it is possible to achieve a more sufficient measurement of various parts on the switch cabinet body at different heights, improve the sufficiency of the external measurement of the switch cabinet, greatly shorten the time of the measurement process, facilitate the improvement of the measurement efficiency, and reduce the manual workload.

[0018] 2. By setting up the self-locking component, it is possible to achieve the effect of automatically locking and protecting the measuring device after use, which is conducive to improving the use safety of the measuring device.

[0019] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Description of the Drawings

[0020] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0021] Figure 1 is the front view structural diagram of the present invention;

[0022] Figure 2 is the bottom view structural diagram of the present invention;

[0023] Figure 3 is the sectional view structural diagram of the present invention;

[0024] Figure 4 is the left view structural diagram of the rotatable measuring component and the lifting component of the present invention;

[0025] Figure 5 is the bottom view structural diagram of the ventilation component of the present invention;

[0026] Figure 6 is the Figure 5 magnified structural diagram of A in the present invention;

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Cabinet shell; 2. Rotatable measuring component; 201. Slide rail; 202. Partial discharge measuring instrument; 203. Gear 1; 204. Rotating motor; 205. Electric telescopic plate; 3. Lifting component; 301. Rack; 302. Biaxial motor; 303. Gear 2; 4. Chute; 5. Tooth groove; 6. Self-locking component; 601. Locking plate; 602. Side plate; 603. Bracket; 604. Spring; 605. Electric telescopic rod; 7. Clamping plate; 8. Ventilation component; 801. Top box; 802. Air plate; 803. Exhaust fan; 9. Air inlet hole; 10. Ventilation hole; 11. Cabinet door; 12. Display screen; 13. Handle. Specific Embodiments

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Referring to Figures 1-6 , a medium-voltage switchgear with a partial discharge measurement effect disclosed by the present invention includes a cabinet shell 1, a rotatable measurement component 2, and a lifting component 3. The cabinet shell 1 can protect the internal structure of the switchgear. The rotatable measurement component 2 can perform partial discharge measurement on the outside of the cabinet shell 1. The lifting component 3 can drive the rotatable measurement component 2 to lift. Both the rotatable measurement component 2 and the lifting component 3 are installed outside the cabinet shell 1. The rotatable measurement component 2 includes a slide rail 201 sleeved outside the cabinet shell 1 and a partial discharge measuring instrument 202 located on one side of the cabinet shell 1. The slide rail 201 can support a biaxial motor 302. The partial discharge measuring instrument 202 can facilitate the partial discharge measurement on the outside of the cabinet shell 1. A chute 4 is provided on the slide rail 201. The chute 4 can limit the rotation motor 204 and prevent the outer shell of the rotation motor 204 from rotating. A first gear 203 and a rotation motor 204 are installed in the chute 4. The first gear 203 can mesh with a tooth groove 5. The rotation motor 204 can drive the first gear 203 to rotate. A tooth groove 5 meshing with the first gear 203 is provided in the chute 4. The tooth groove 5 can mesh with the first gear 203. The output shaft of the rotation motor 204 is fixedly connected to the first gear 203 and an electric telescopic plate 205 is fixedly installed at the top. The electric telescopic plate 205 can drive the partial discharge measuring instrument 202 to move and can adjust the distance between the partial discharge measuring instrument 202 and the cabinet shell 1. The telescopic end of the electric telescopic plate 205 is fixedly connected to the partial discharge measuring instrument 202. The lifting component 3 includes two power structures symmetrically installed on both sides of the cabinet shell 1. The power structure includes a toothed plate 301 fixedly connected to the side wall of the cabinet shell 1 and a biaxial motor 302 fixedly connected to the bottom surface of the slide rail 201. The toothed plate 301 can mesh with a second gear 303. The biaxial motor 302 can drive the second gear 303 to rotate. Second gears 303 meshing with the toothed plate 301 are fixedly installed on both output shafts of the biaxial motor 302. The rotation of the second gear 303 can drive the biaxial motor 302 to lift.

[0031] The toothed plate 301 is fixed by the cabinet body shell 1. The second gear 303 can be limited by the toothed plate 301. After the second gear 303 is limited, it can limit the double-shaft motor 302. After the double-shaft motor 302 is limited, it can limit the slide rail 201. After the slide rail 201 is limited, it can limit the first gear 203 and the rotating motor 204 through the chute 4. The rotating motor 204 can limit the electric telescopic plate 205. The electric telescopic plate 205 can limit the partial discharge measuring instrument 202, which can prevent the inclination between the slide rail 201 and the cabinet body shell 1. After the slide rail 201 is limited, it can limit the chute 4 and the tooth groove 5, and can fix the tooth groove 5. By starting the rotating motor 204 to drive the first gear 203 to rotate, the first gear 203 meshes with the tooth groove 5. Since the tooth groove 5 is fixed and cannot move, after the first gear 203 rotates, it can move inside the chute 4 along the tooth groove 5. The first gear 203 can rotate around the outside of the cabinet body shell 1. The movement of the first gear 203 can drive the rotating motor 204 to rotate around the outside of the cabinet body shell 1. The rotating motor 204 can drive the electric telescopic plate 205 to rotate around the outside of the cabinet body shell 1. The electric telescopic plate 205 can drive the partial discharge measuring instrument 202 to rotate around the outside of the cabinet body shell 1. The partial discharge measuring instrument 202 can measure the partial discharge of the parts at the same height outside the cabinet body shell 1. Since there are uneven parts on the outer surface of the cabinet body shell 1, by starting the electric telescopic plate 205 to drive the partial discharge measuring instrument 202 to move, the distance between the partial discharge measuring instrument 202 and the cabinet body shell 1 can be adjusted, so that the partial discharge measuring instrument 202 can better contact with each part of the cabinet body shell 1.

[0032] By starting the dual-axis motor 302, the second gear 303 can be driven to rotate. The second gear 303 meshes with the toothed plate 301, and the toothed plate 301 is fixed by the cabinet shell 1 and cannot move. The second gear 303 can descend along the toothed plate 301, and the second gear 303 can drive the dual-axis motor 302 to descend. The dual-axis motor 302 can drive the slide rail 201 to descend. The slide rail 201 can drive the first gear 203 and the rotating motor 204 to descend through the chute 4 and the tooth groove 5. The rotating motor 204 can drive the electric telescopic plate 205 to descend. The electric telescopic plate 205 can drive the partial discharge measuring instrument 202 to descend, so as to adjust the height of the partial discharge measuring instrument 202, and adjust the height of the partial discharge measuring instrument 202 to the cabinet shell 1. The partial discharge measuring instrument 202 can perform partial discharge measurement on different parts at different heights outside the cabinet shell 1 at different heights. After use, by starting the dual-axis motor 302 in reverse, the second gear 303 can be driven to rotate in reverse, and the second gear 303 can drive the dual-axis motor 302 to rise. According to the above steps, the slide rail 201, the partial discharge measuring instrument 202, the first gear 203, the rotating motor 204 and the electric telescopic plate 205 can be driven to rise, and the slide rail 201, the partial discharge measuring instrument 202, the first gear 203, the rotating motor 204 and the electric telescopic plate 205 can be stored below the top box 801.

[0033] Refer to Figure 2 and Figure 6 , on one side of the slide rail 201 of this embodiment, a self-locking component 6 is installed. The self-locking component 6 is used to lock the slide rail 201. A clamping plate 7 is fixedly installed on the inner side wall of the slide rail 201. The clamping plate 7 can be connected to the side wall of the slide rail 201, which is convenient for the locking plate 601 to fix the slide rail 201 through the clamping plate 7. The self-locking component 6 includes a locking plate 601 clamped with the clamping plate 7 and a side plate 602 fixedly connected to the side wall of the cabinet shell 1. The locking plate 601 can support the bottom of the clamping plate 7, and the side plate 602 can fix the bracket 603. A bracket 603 sleeved and connected with the locking plate 601 is fixedly installed on the side wall of the side plate 602. The bracket 603 can support the locking plate 601. A spring 604 and an electric telescopic rod 605 are installed between the locking plate 601 and the side plate 602. The spring 604 can drive the locking plate 601 to reset, and the electric telescopic rod 605 can push the locking plate 601.

[0034] When the slide rail 201 rises, it can drive the clamping plate 7 to rise. The top surface of the clamping plate 7 can squeeze the inclined surface below the locking plate 601. According to Figure 6As shown, after the inclined surface below the lock plate 601 is squeezed, the lock plate 601 can rotate around the central axis of the connection part with the bracket 603, and the bottom end of the lock plate 601 rotates to the upper right and away from the card plate 7, and the top end of the lock plate 601 rotates to the lower left and away from the side plate 602. The top end of the lock plate 601 can stretch the spring 604, and the spring 604 is stretched to give the top end of the lock plate 601 a pulling force to the right. When the card plate 7 continues to move upward and passes over the inclined surface at the bottom end of the lock plate 601, due to the pulling force of the spring 604, the top end of the lock plate 601 can rotate to the upper right, so the bottom end of the lock plate 601 rotates to the lower left, and the bottom of the lock plate 601 can be supported on the bottom of the card plate 7. It can be automatically locked and fixed by the locking plate 601. After the card plate 7 is fixed, the slide rail 201 can be fixed. After the slide rail 201 is fixed, the gear 203 and the rotating motor 204 can be fixed through the slide groove 4 and the tooth groove 5. The rotating motor 204 can fix the electric telescopic plate 205. The electric telescopic plate 205 can fix the partial discharge measuring instrument 202, which can prevent the partial discharge measuring instrument 202 from falling. By starting the electric telescopic rod 605 to push the top of the locking plate 601, the top of the locking plate 601 rotates to the lower left, and the bottom end of the locking plate 601 rotates to the upper right. The locking plate 601 can release the fixation of the card plate 7, which can facilitate the descent of the slide rail 201.

[0035] Reference Figures 1-3 In this embodiment, a ventilation component 8 is installed above the cabinet shell 1. The ventilation component 8 is used for ventilating and dissipating heat inside the cabinet shell 1. The ventilation component 8 includes a top box 801 fixedly installed on the top of the cabinet shell 1. The top box 801 can protect the top of the cabinet shell 1. The top box 801 cover is arranged above the rotatable measuring component 2. The side walls of the top box 801 are symmetrically provided with air inlet holes 9 and a wind plate 802 located above the cabinet shell 1 is fixedly installed inside. The air inlet holes 9 can facilitate the intake of air into the cabinet shell 1. The wind plate 802 can facilitate the isolation between the cabinet shell 1 and the top box 801, which is beneficial to dust prevention inside the cabinet shell 1. A ventilation fan 803 located above the wind plate 802 is fixedly installed inside the top box 801. The ventilation fan 803 can convey air to the inside of the cabinet shell 1 through the wind plate 802.

[0036] By starting the ventilation fan 803, the air outside the top box 801 is driven to enter the top box 801 through the air inlet 9. The air inside the top box 801 enters the cabinet shell 1 through the wind plate 802 along with the air flow, which can accelerate the air flow inside the cabinet shell 1 and facilitate ventilation and heat dissipation inside the cabinet shell 1.

[0037] Reference Figure 2 In this embodiment, a ventilation hole 10 is provided on the side wall of the cabinet shell 1 , and the ventilation hole 10 can facilitate the internal gas circulation of the cabinet shell 1 .

[0038] ReferenceFigure 1 , a cabinet door 11 is installed on the cabinet body shell 1 of this embodiment, and the cabinet door 11 can seal one side of the cabinet body shell 1.

[0039] Refer to Figure 1 , a display screen 12 is fixedly installed on the cabinet door 11 of this embodiment. The display screen 12 can display the working state of the switch cabinet, which is convenient for the staff to timely understand the usage state of the switch cabinet.

[0040] Refer to Figure 1 , a handle 13 is fixedly installed on the cabinet door 11 of this embodiment. Pulling the handle 13 can facilitate pulling the cabinet door 11 and facilitate the opening and closing of the cabinet door 11.

[0041] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A medium-voltage switchgear cabinet with a partial discharge measurement effect, comprising a cabinet body shell (1), a rotatable measurement assembly (2) and a lifting assembly (3), characterized in that: The rotatable measurement assembly (2) and the lifting assembly (3) are both installed outside the cabinet housing (1). The rotatable measurement assembly (2) includes a slide rail (201) sleeved outside the cabinet housing (1) and a partial discharge measuring instrument (202) located on one side of the cabinet housing (1). A chute (4) is formed in the slide rail (201), and a first gear (203) and a rotary motor (204) are installed in the chute (4). A tooth groove (5) meshing with the first gear (203) is formed in the chute (4). The output shaft of the rotary motor (204) is fixedly connected to the first gear (203), and an electric telescopic plate (205) is fixedly installed on the top. The telescopic end of the electric telescopic plate (205) is fixedly connected to the partial discharge measuring instrument (202). The lifting assembly (3) includes two power structures symmetrically installed on both sides of the cabinet housing (1). The power structure includes a toothed plate (301) fixedly connected to the side wall of the cabinet housing (1) and a double-shaft motor (302) fixedly connected to the bottom surface of the slide rail (201). Second gears (303) meshing with the toothed plate (301) are fixedly installed on both output shafts of the double-shaft motor (302).

2. The medium-voltage switchgear with partial discharge measurement effect according to claim 1, characterized in that, A self-locking assembly (6) is installed on one side of the slide rail (201), and the self-locking assembly (6) is used to lock the slide rail (201).

3. The medium-voltage switchgear with partial discharge measurement effect according to claim 2, characterized in that, A clamping plate (7) is fixedly installed on the inner side wall of the slide rail (201). The self-locking assembly (6) includes a locking plate (601) clamped to the clamping plate (7) and a side plate (602) fixedly connected to the side wall of the cabinet housing (1). A bracket (603) sleeved and connected to the locking plate (601) is fixedly installed on the side wall of the side plate (602). A spring (604) and an electric telescopic rod (605) are installed between the locking plate (601) and the side plate (602).

4. A medium-voltage switchgear with partial discharge measurement effect according to claim 3, characterized in that, A ventilation assembly (8) is installed above the cabinet housing (1), and the ventilation assembly (8) is used for ventilation and heat dissipation inside the cabinet housing (1).

5. A medium-voltage switchgear with partial discharge measurement effect according to claim 4, characterized in that, The ventilation assembly (8) includes a top box (801) fixedly installed on the top of the cabinet housing (1). The top box (801) covers the rotatable measurement assembly (2). Air inlet holes (9) are symmetrically formed in the side wall of the top box (801), and an air plate (802) located above the cabinet housing (1) is fixedly installed inside. A ventilation fan (803) located above the air plate (802) is fixedly installed inside the top box (801).

6. A medium-voltage switchgear cabinet with a partial discharge measurement effect according to claim 5, characterized in that, Ventilation holes (10) are formed in the side wall of the cabinet housing (1).

7. A medium-voltage switchgear with partial discharge measurement effect according to claim 6, characterized in that, A box door (11) is installed on the cabinet housing (1).

8. A medium voltage switchgear cabinet with partial discharge measurement effect according to claim 7, characterized in that, A display screen (12) is fixedly installed on the box door (11).

9. A medium-voltage switchgear cabinet with a partial discharge measurement effect according to claim 8, characterized in that, A handle (13) is fixedly installed on the box door (11).

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