Protection test simulation device for transformer over-capacitance protection instrument and use method of protection test simulation device

Abstract

The invention discloses a protection test simulation device for a transformer over-capacitance protection instrument and a use method thereof, and relates to the field of transformers, the protection test simulation device comprises a simulation test bench, a simulation electric appliance assembly is arranged in the simulation test bench, and a mounting assembly for mounting the simulation electric appliance assembly is arranged in the simulation test bench. The bearing plate is horizontally and slidably arranged in the simulation test bed, the mounting plate is slidably clamped to the top of the bearing plate, the simulation electric appliance assembly is mounted at the top of the mounting plate, the supporting assembly is arranged on the side of the bottom of the bearing plate, and the locking assembly and the supporting assembly form linkage. By means of the arrangement mode that the simulation test bed, the simulation electric appliance assembly and the installation assembly are matched, under the effect of the supporting assembly, the bearing plate can slide out of the interior of the simulation test bed, after the supporting assembly is unfolded, locking of the installation plate by the locking assembly can be relieved, and the installation effect is improved. Therefore, the mounting plate and the simulation electric appliance assembly on the bearing plate can be directly disassembled.

Description

Technical Field

[0001] The invention relates to the field of transformers, and in particular to a protection test simulation device for a transformer overcapacity protection instrument and a use method thereof. Background Art

[0002] The transformer overcapacity protector is a device used to monitor and protect the transformer from overload. It can monitor the operating status of the transformer in real time. When the load of the transformer exceeds its rated capacity, the protector will trigger corresponding protection measures to prevent the transformer from overheating, damage or even fire and other safety accidents.

[0003] Transformer overcapacity protection devices usually monitor the operating status of the transformer based on parameters such as current, voltage or power. When the monitored parameters exceed the preset threshold, the protection device will sound an alarm or directly cut off the power supply to protect the transformer from damage.

[0004] When conducting a protection test of a simulated transformer overcapacity protector, a simulation test bench is usually used. The components of the transformer overcapacity protector are assembled inside the simulation test bench, and then the working environment of the transformer overcapacity protector is simulated to perform a detection experiment. During the working simulation experiment, the components of the transformer overcapacity protector may malfunction and be damaged. Since the components of the transformer overcapacity protector are directly installed inside the simulation test bench, the frame side panels of the simulation test bench need to be disassembled before the electrical appliances can be disassembled for maintenance, which reduces the efficiency of maintenance and has certain defects. Summary of the invention

[0005] The object of the present invention is to provide a protection test simulation device for a transformer overcapacity protection instrument and a use method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a protection test simulation device for a transformer overcapacity protection instrument, comprising a simulation test bench, the back of which is symmetrically provided with cabinet doors;

[0007] The simulation test bench is provided with a simulation electrical component inside, and the simulation test bench is provided with an installation component for installing the simulation electrical component inside, and the installation component includes:

[0008] A load-bearing plate, the load-bearing plate being horizontally slidably disposed inside the simulation test bench;

[0009] A mounting plate, wherein the mounting plate is slidably connected to the top of the bearing plate, and the simulated electrical component is mounted on the top of the mounting plate;

[0010] A support assembly, wherein the support assembly is arranged on a side of the bottom of the carrying plate;

[0011] A locking assembly is arranged at the bottom of the bearing plate, and is used to lock the mounting plate. The locking assembly is linked with the supporting assembly.

[0012] Preferably, the support assembly comprises:

[0013] A support plate, the top of which is fixedly connected to the bearing plate;

[0014] An arc block and a fixed shaft, wherein the arc block is rotatably connected to the support plate through the fixed shaft, and the arc block is linked with the locking assembly;

[0015] A supporting roller, wherein the supporting roller is installed at the bottom of the arc block;

[0016] A positioning rod is clamped between the support plate and the arc block.

[0017] Preferably, the locking assembly comprises:

[0018] A bottom plate, the bottom plate being slidably disposed between adjacent support plates;

[0019] A locking rod, the bottom of which is fixedly connected to the bottom plate, and the outer wall of which is slidably interlaced with the bearing plate;

[0020] A locking groove, the locking groove is formed at the bottom of the mounting plate, and the top of the outer wall of the locking rod corresponds to the locking groove;

[0021] The driving block is fixedly connected to the bottom of the base plate, and the outer wall of the arc block is provided with a receiving groove matching the driving block.

[0022] Preferably, the locking assembly further comprises:

[0023] A mounting groove, wherein the mounting groove is provided on the top of the support plate, and the end of the outer wall of the bottom plate is slidably sleeved with the inner cavity of the mounting groove;

[0024] A guide rod, the bottom of which is fixedly connected to the support plate, and the outer wall of the guide rod is slidably interlaced with the bottom plate;

[0025] A support spring is slidably sleeved on the outside of the guide rod.

[0026] Preferably, a fixing plate is slidably sleeved inside the mounting groove, the top of the outer wall of the guide rod is slidably inserted and sleeved with the fixing plate, the support spring is located between the fixing plate and the bottom plate, and a hole matching the locking rod is opened on the top of the fixing plate.

[0027] Preferably, the support assembly further comprises:

[0028] A positioning groove, wherein the positioning groove is provided on one side of the arc block, one end of the outer wall of the positioning rod is slidably sleeved with the inner cavity of the positioning groove, and the outer wall of the positioning rod is slidably sleeved with the support plate;

[0029] A handle, the handle being fixedly connected to one end of the positioning rod;

[0030] A connecting plate is fixedly connected to the side of the fixing plate, and the connecting plate is slidably engaged with the positioning rod.

[0031] Preferably, a sliding hole matching the positioning rod is provided at the bottom of one side of the connecting plate, a limiting rod is fixedly connected to the bottom of the inner wall of the sliding hole, a limiting hole is provided at the bottom of the positioning rod, the outer wall of the limiting rod is slidably engaged with the inner cavity of the limiting hole, and a handle is fixedly connected to the side of the connecting plate facing away from the support plate.

[0032] Preferably, the installation assembly further includes:

[0033] A drag chain, which is installed between the load-bearing plate and the simulation test bench;

[0034] A guide rail, wherein the guide rail is fixedly connected to the interior of the simulation test bench, and the side of the outer wall of the bearing plate is slidably sleeved with the guide rail;

[0035] A ball bearing is rotatably embedded in the guide track and is used for guiding and supporting the bearing plate.

[0036] Preferably, the installation assembly further includes:

[0037] A clamping piece, the clamping piece is fixedly connected to the top of the load-bearing plate, and the clamping piece is clamped to the outside of the mounting plate;

[0038] A slot, the slot being opened on a side of the mounting plate, the slot corresponding to the clamping piece;

[0039] A guide plate, the guide plate is located on the side of the mounting plate, and the bottom of the guide plate is fixedly connected to the bearing plate;

[0040] The baffle is fixedly connected to the top of the bearing plate, and the back side of the baffle is in contact with the mounting plate.

[0041] The present invention also provides a method for using a protection test simulation device for a transformer overcapacity protection instrument, comprising the following specific use steps:

[0042] Step 1: When disassembling and maintaining the simulated electrical components, open the cabinet door on the back of the simulated test bench, pull the load-bearing plate to slide out, and unfold the support assembly to support the load-bearing plate;

[0043] Step 2: When unfolding the support assembly, pull the connecting plate down so that the connecting plate drives the limit rod to separate from the positioning rod, then pull out the positioning rod, rotate the arc block relative to the fixed axis, make the bottom of the support roller fit with the ground, and lock the positioning rod to the arc block until the load-bearing plate drives the simulated electrical assembly to be located outside the simulation test bench;

[0044] Step 3: As the arc block drives the supporting roller to rotate and unfold, the storage groove on the top of the arc block corresponds to the driving block. Under the action of the supporting spring, the bottom plate drives the locking rod to descend and separate from the mounting plate, causing the mounting plate to slide and separate from the load-bearing plate, thereby completing the disassembly of the mounting plate on the top of the load-bearing plate and the simulated electrical components.

[0045] Technical effects and advantages of the present invention:

[0046] (1) The present invention utilizes a configuration in which a simulation test bench, a simulation electrical component and a mounting component are matched, wherein the mounting component includes a load-bearing plate, a mounting plate, a support component and a locking component. Under the action of the support component, the load-bearing plate can be slid out from the inside of the simulation test bench, and after the support component is unfolded, the locking component can be released from the mounting plate, thereby directly disassembling the mounting plate and the simulation electrical component on the load-bearing plate;

[0047] (2) The present invention utilizes a configuration in which a support assembly and a locking assembly cooperate with each other. The support assembly includes a support plate, an arc block, a fixed shaft, a support roller and a positioning rod. When the support roller and the arc block rotate relative to the fixed shaft and are in a vertically expanded state, the support plate can be supported, and at this time, the arc block no longer squeezes and restricts the locking assembly, and the locking assembly is in an unlocked state. When the support roller and the arc block rotate relative to the fixed shaft and are in a horizontally stored state, the locking assembly is in a locked state, thereby locking the mounting plate on the support plate, thereby ensuring the stability of the analog electrical assembly assembled on the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0049] Figure 2 It is a schematic diagram of the internal structure of the back side of the present invention.

[0050] Figure 3 It is a schematic diagram of the overall structure of the load-bearing plate of the present invention.

[0051] Figure 4 It is a schematic diagram of the internal structure of the back side of the carrying plate of the present invention.

[0052] Figure 5 It is a schematic diagram of the internal structure of the back side of the support plate of the present invention.

[0053] Figure 6 It is a schematic diagram of the overall structure of the arc block of the present invention.

[0054] In the figure: 1. Simulation test bench; 11. Cabinet door; 2. Simulation electrical component; 3. Installation component; 31. Loading plate; 32. Installation plate; 33. Support component; 331. Support plate; 332. Arc block; 333. Fixed shaft; 334. Support roller; 335. Positioning rod; 336. Positioning groove; 337. Handle; 338. Connecting plate; 339. Limit rod; 3310. Slide hole; 34. Locking component; 341. Bottom plate; 342. Locking rod; 343. Locking groove; 344. Drive block; 345. Storage groove; 346. Guide rod; 347. Support spring; 348. Fixed plate; 35. Drag chain; 36. Guide track; 37. Ball; 38. Clip; 39. Slot; 310. Guide plate; 311. Baffle. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] The present invention provides Figure 1-6 The protection test simulation device for transformer overcapacity protection instrument shown in the figure comprises a simulation test bench 1, a cabinet door 11 is symmetrically installed on the back of the simulation test bench 1, a simulation electrical component 2 is arranged inside the simulation test bench 1, and a mounting component 3 for mounting the simulation electrical component 2 is arranged inside the simulation test bench 1, and the mounting component 3 comprises a bearing plate 31, a mounting plate 32, a support component 33 and a locking component 34, the bearing plate 31 is horizontally slidably arranged inside the simulation test bench 1, the mounting plate 32 is slidably clamped on the top of the bearing plate 31, the simulation electrical component 2 is mounted on the top of the mounting plate 32, and the simulation The electrical components 2 include but are not limited to one or more of a transformer, a power controller, a voltage tester and an overload protector, so that it is used in conjunction with the simulation test bench 1 to perform a transformer overcapacity protection simulation test. The support component 33 is arranged on the side of the bottom of the load-bearing plate 31, and the support component 33 can support and guide the pulled-out load-bearing plate 31. The locking component 34 is arranged at the bottom of the load-bearing plate 31, and the locking component 34 is used to lock the mounting plate 32. The locking component 34 forms a linkage with the support component 33, and the locking component 34 can ensure the stability of the mounting plate 32 being clamped on the top of the load-bearing plate 31.

[0057] Furthermore, the support assembly 33 includes a support plate 331, an arc block 332 and a fixed shaft 333, a support roller 334 and a positioning rod 335. The top of the support plate 331 is fixedly connected to the load-bearing plate 31, the arc block 332 is rotatably connected to the support plate 331 through the fixed shaft 333, the arc block 332 forms a linkage with the locking assembly 34, the support roller 334 is installed at the bottom of the arc block 332, and the positioning rod 335 is clamped between the support plate 331 and the arc block 332. Under the action of the positioning rod 335, the arc block 332 can be stably installed between the two support plates 331. Figure 4 and Figure 6 As shown, when the arc block 332 drives the supporting roller 334 to be in a vertical state, the supporting plate 31 can be supported and guided. When the supporting plate 31 is stored inside the simulation test bench 1, the supporting roller 334 can be in a horizontal storage state.

[0058] The locking assembly 34 includes a bottom plate 341, a locking rod 342, a locking groove 343 and a driving block 344. The bottom plate 341 is slidably arranged between adjacent supporting plates 331. The bottom of the locking rod 342 is fixedly connected to the bottom plate 341. The outer wall of the locking rod 342 is slidably inserted and sleeved with the bearing plate 31. The locking groove 343 is provided at the bottom of the mounting plate 32. The top of the outer wall of the locking rod 342 corresponds to the locking groove 343. When the driving block 344 is pressed and fitted with the outer wall of the arc block 332, the driving block 344 can push the locking rod 342 through the bottom plate 341. The support is provided so that the locking rod 342 is engaged with the locking groove 343, thereby ensuring the stability of the mounting plate 32 being engaged with the top of the supporting plate 31. The driving block 344 is fixedly connected to the bottom of the bottom plate 341, and the outer wall of the arc block 332 is provided with a receiving groove 345 matching the driving block 344, that is, when the receiving groove 345 at the top of the arc block 332 corresponds to the driving block 344, the driving block 344 is located in the receiving groove 345, and the locking rod 342 is separated from the locking groove 343 at the bottom of the mounting plate 32, so that the mounting plate 32 can be slid and separated from the supporting plate 31.

[0059] Furthermore, the locking assembly 34 also includes a mounting groove, a guide rod 346 and a support spring 347. The mounting groove is opened at the top of the support plate 331, the end of the outer wall of the bottom plate 341 is slidably sleeved with the inner cavity of the mounting groove, the bottom of the guide rod 346 is fixedly connected to the support plate 331, the outer wall of the guide rod 346 is slidably inserted and sleeved with the bottom plate 341, the support spring 347 is slidably sleeved on the outside of the guide rod 346, the inside of the mounting groove is slidably sleeved with a fixing plate 348, and the guide spring 347 is slidably sleeved on the outside of the guide rod 346. The top of the outer wall of the rod 346 is slidably inserted and sleeved with the fixed plate 348, and the support spring 347 is located between the fixed plate 348 and the bottom plate 341. A hole matching the locking rod 342 is opened on the top of the fixed plate 348. The support spring 347 can give the bottom plate 341 a downward reset force, that is, when the driving block 344 corresponds to the storage groove 345 on the arc block 332, the support spring 347 drives the locking rod 342 to descend and separate from the mounting plate 32 through the bottom plate 341.

[0060] Furthermore, the support assembly 33 also includes a positioning groove 336, a handle 337 and a connecting plate 338. The positioning groove 336 is opened on one side of the arc block 332, and the number of positioning grooves 336 on one side of the arc block 332 is two, and the distance between the two positioning grooves 336 and the fixed shaft 333 is the same. One end of the outer wall of the positioning rod 335 is slidably sleeved with the inner cavity of the positioning groove 336, that is, when the positioning rod 335 and the two positioning grooves 336 on one side of the arc block 332 are respectively engaged, the arc block 332 drives the supporting roller 334 to be in the corresponding vertical expansion state and horizontal storage state, the outer wall of the positioning rod 335 is slidably inserted and sleeved with the support plate 331, the handle 337 is fixedly connected to one end of the positioning rod 335, the connecting plate 338 is fixedly connected to the side of the fixing plate 348, and the connecting plate The locking cam 338 is slidably engaged with the positioning rod 335, and a sliding hole 3310 matching the positioning rod 335 is provided at the bottom of one side of the connecting plate 338, and the bottom of the inner wall of the sliding hole 3310 is fixedly connected to the limiting rod 339, and a limiting hole is provided at the bottom of the positioning rod 335, and the outer wall of the limiting rod 339 is slidably engaged with the inner cavity of the limiting hole, and the sliding hole 3310 has a certain length, that is, when the connecting plate 338 slides with the positioning rod 335 through the sliding hole 3310, the limiting rod 339 can be driven to separate from the positioning rod 335, and a handle is fixedly connected to the side of the connecting plate 338 away from the supporting plate 331, and the supporting spring 347 can give the connecting plate 338 an upward elastic force through the fixing plate 348, so that the connecting plate 338 drives the limiting rod 339 and the positioning rod 335 to maintain a stable engaging state.

[0061] Furthermore, the installation assembly 3 also includes a drag chain 35, a guide rail 36 and a ball 37. The drag chain 35 is installed between the load-bearing plate 31 and the simulation test bench 1. The guide rail 36 is fixedly connected to the inside of the simulation test bench 1. The side of the outer wall of the load-bearing plate 31 is slidably sleeved with the guide rail 36. The ball 37 is rotatably embedded in the inside of the guide rail 36. The ball 37 is used to guide and support the load-bearing plate 31. The ball 37 can reduce the friction between the load-bearing plate 31 and the guide rail 36. A locking block is also provided between the load-bearing plate 31 and the guide rail 36 to prevent the load-bearing plate 31 from sliding directly and sliding apart from the guide rail 36 when the door 11 is passed. When the door lock is locked, the load-bearing plate 31 can also be limited to ensure the stability of the load-bearing plate 31 installed inside the simulation test bench 1. The installation assembly 3 also includes a clamping member 38, a slot 39, a guide plate 310 and a baffle 311. The clamping member 38 is fixedly connected to the top of the load-bearing plate 31, the clamping member 38 is clamped to the outside of the mounting plate 32, the slot 39 is arranged on the side of the mounting plate 32, the slot 39 corresponds to the clamping member 38, the guide plate 310 is located on the side of the mounting plate 32, the bottom of the guide plate 310 is fixedly connected to the load-bearing plate 31, the baffle 311 is fixedly connected to the top of the load-bearing plate 31, and the back of the baffle 311 is in contact with the mounting plate 32. Figure 3 As shown, the clamping member 38, the guide plate 310 and the baffle 311 cooperate to improve the stability of the position of the mounting plate 32 clamped on the supporting plate 31, and the mounting plate 32 can be slid away from the baffle 311 so that the slot 39 on the mounting plate 32 corresponds to the clamping member 38, and the mounting plate 32 can be directly disassembled.

[0062] The present invention also provides a method for using a protection test simulation device for a transformer overcapacity protection instrument, comprising the following specific use steps:

[0063] When disassembling and maintaining the simulated electrical component 2, open the cabinet door 11 on the back of the simulated test bench 1, pull the carrying plate 31 to slide out partially, and unfold the support component 33 to support the carrying plate 31;

[0064] When the support assembly 33 is unfolded, the connecting plate 338 is pulled down so that the connecting plate 338 drives the limiting rod 339 to separate from the positioning rod 335, and then the positioning rod 335 is pulled out to rotate the arc block 332 relative to the fixed shaft 333, so that the bottom of the supporting roller 334 is in contact with the ground, and the positioning rod 335 locks the arc block 332 until the load-bearing plate 31 drives the simulated electrical component 2 to be located outside the simulated test bench 1;

[0065] As the arc block 332 drives the supporting roller 334 to rotate and unfold, the storage groove 345 on the top of the arc block 332 corresponds to the driving block 344. Under the action of the supporting spring 347, the bottom plate 341 drives the locking rod 342 to descend and separate from the mounting plate 32, and removes the data cable connecting the analog electrical component 2 and the drag chain 35, so that the mounting plate 32 slides and separates from the supporting plate 31, thereby completing the disassembly of the mounting plate 32 on the top of the supporting plate 31 and the analog electrical component 2.

[0066] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protection test simulation device for a transformer overcapacity protection instrument, comprising a simulation test bench (1), wherein cabinet doors (11) are symmetrically mounted on the back of the simulation test bench (1); It is characterized in that The simulation test bench (1) is provided with a simulation electrical component (2) inside, and the simulation test bench (1) is provided with an installation component (3) for installing the simulation electrical component (2), and the installation component (3) comprises: A carrying plate (31), the carrying plate (31) being horizontally slidably arranged inside the simulation test bench (1); A mounting plate (32), wherein the mounting plate (32) is slidably connected to the top of the carrier plate (31), and the simulated electrical component (2) is mounted on the top of the mounting plate (32); A support assembly (33), wherein the support assembly (33) is arranged on a side of the bottom of the carrying plate (31); A locking assembly (34), wherein the locking assembly (34) is arranged at the bottom of the bearing plate (31), the locking assembly (34) is used to lock the mounting plate (32), and the locking assembly (34) is linked with the supporting assembly (33).

2. The protection test simulation device for transformer overcapacity protection instrument according to claim 1 is characterized in that: The support assembly (33) comprises: A support plate (331), the top of which is fixedly connected to the bearing plate (31); An arc block (332) and a fixed shaft (333), wherein the arc block (332) is rotatably connected to the support plate (331) via the fixed shaft (333), and the arc block (332) is linked to the locking assembly (34); A supporting roller (334), wherein the supporting roller (334) is installed at the bottom of the arc block (332); A positioning rod (335), wherein the positioning rod (335) is clamped between the support plate (331) and the arc block (332).

3. A protection test simulation device for a transformer overcapacity protection instrument according to claim 2, characterized in that: The locking assembly (34) comprises: A bottom plate (341), wherein the bottom plate (341) is slidably disposed between adjacent support plates (331); A locking rod (342), wherein the bottom of the locking rod (342) is fixedly connected to the bottom plate (341), and the outer wall of the locking rod (342) is slidably inserted and sleeved with the bearing plate (31); A locking groove (343), wherein the locking groove (343) is formed at the bottom of the mounting plate (32), and the top of the outer wall of the locking rod (342) corresponds to the locking groove (343); A driving block (344) is fixedly connected to the bottom of the bottom plate (341), and an outer wall of the arc block (332) is provided with a receiving groove (345) matching the driving block (344).

4. The protection test simulation device for transformer overcapacity protection instrument according to claim 3 is characterized in that: The locking assembly (34) further comprises: A mounting groove, the mounting groove being opened on the top of the support plate (331), and the end of the outer wall of the bottom plate (341) being slidably sleeved with the inner cavity of the mounting groove; A guide rod (346), wherein the bottom of the guide rod (346) is fixedly connected to the support plate (331), and the outer wall of the guide rod (346) is slidably inserted and sleeved with the bottom plate (341); A support spring (347) is slidably sleeved on the outside of the guide rod (346).

5. The protection test simulation device for transformer overcapacity protection instrument according to claim 4 is characterized in that: A fixing plate (348) is slidably sleeved inside the mounting groove, the top of the outer wall of the guide rod (346) is slidably inserted and sleeved with the fixing plate (348), the support spring (347) is located between the fixing plate (348) and the bottom plate (341), and a hole matching the locking rod (342) is opened on the top of the fixing plate (348).

6. A protection test simulation device for transformer overcapacity protection instrument according to claim 5, characterized in that: The support assembly (33) further comprises: A positioning groove (336), wherein the positioning groove (336) is provided on one side of the arc block (332), one end of the outer wall of the positioning rod (335) is slidably sleeved with the inner cavity of the positioning groove (336), and the outer wall of the positioning rod (335) is slidably sleeved with the support plate (331); A handle (337), wherein the handle (337) is fixedly connected to one end of the positioning rod (335); A connecting plate (338), wherein the connecting plate (338) is fixedly connected to the side of the fixing plate (348), and the connecting plate (338) is slidably engaged with the positioning rod (335).

7. A protection test simulation device for transformer overcapacity protection instrument according to claim 6, characterized in that: A sliding hole (3310) matching the positioning rod (335) is provided at the bottom of one side of the connecting plate (338); a limiting rod (339) is fixedly connected to the bottom of the inner wall of the sliding hole (3310); a limiting hole is provided at the bottom of the positioning rod (335); the outer wall of the limiting rod (339) is slidably engaged with the inner cavity of the limiting hole; and a handle is fixedly connected to the side of the connecting plate (338) facing away from the supporting plate (331).

8. The protection test simulation device for transformer overcapacity protection instrument according to claim 1 is characterized in that: The installation component (3) also includes: A drag chain (35), wherein the drag chain (35) is installed between the load-bearing plate (31) and the simulation test bench (1); A guide rail (36), the guide rail (36) being fixedly connected to the interior of the simulation test bench (1), and the side of the outer wall of the bearing plate (31) being slidably sleeved with the guide rail (36); A ball (37) is rotatably embedded in the guide track (36), and the ball (37) is used to guide and support the bearing plate (31).

9. A protection test simulation device for a transformer overcapacity protection instrument according to claim 8, characterized in that: The installation component (3) also includes: A clamping member (38), wherein the clamping member (38) is fixedly connected to the top of the carrier plate (31), and the clamping member (38) is clamped to the outside of the mounting plate (32); A slot (39), wherein the slot (39) is formed on a side of the mounting plate (32), and the slot (39) corresponds to the clamping member (38); A guide plate (310), wherein the guide plate (310) is located on a side of the mounting plate (32), and the bottom of the guide plate (310) is fixedly connected to the bearing plate (31); A baffle (311), wherein the baffle (311) is fixedly connected to the top of the bearing plate (31), and the back side of the baffle (311) is in contact with the mounting plate (32).

10. The method for using the protection test simulation device for a transformer overcapacity protection instrument according to any one of claims 1 to 9, characterized in that: The specific usage steps are as follows: Step 1: When disassembling and maintaining the simulated electrical component (2), open the cabinet door (11) on the back of the simulated test bench (1), pull the carrier plate (31) to partially slide out, and unfold the support component (33) to support the carrier plate (31); Step 2: When the support assembly (33) is unfolded, the connecting plate (338) is pulled down so that the connecting plate (338) drives the limiting rod (339) to separate from the positioning rod (335), and then the positioning rod (335) is pulled out to rotate the arc block (332) relative to the fixed shaft (333), so that the bottom of the supporting roller (334) is in contact with the ground, and the positioning rod (335) is locked to the arc block (332), until the load-bearing plate (31) drives the simulated electrical component (2) to be located outside the simulated test bench (1); Step 3: As the arc block (332) drives the supporting roller (334) to rotate and unfold, the storage groove (345) on the top of the arc block (332) corresponds to the driving block (344). Under the action of the supporting spring (347), the bottom plate (341) drives the locking rod (342) to descend and separate from the mounting plate (32), so that the mounting plate (32) slides and separates from the supporting plate (31), thereby completing the disassembly of the mounting plate (32) on the top of the supporting plate (31) and the simulated electrical component (2).

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