Switch cabinet test auxiliary device and switch cabinet test system

Abstract

The invention provides a switch cabinet test auxiliary device and a switch cabinet test system. The switch cabinet test auxiliary device comprises a base, a supporting assembly, a contact connecting assembly and an interphase switching assembly, wherein the supporting assembly is arranged on the base; the plurality of contact connecting assemblies are arranged on the supporting assembly; the interphase switching assembly comprises a driving piece, a mounting seat and a conductive piece, the mounting seat is connected with the base, the driving piece is mounted on the mounting seat, the conductive piece is connected with the output end of the driving piece, one end of the conductive piece forms a first connecting end used for being connected with the contact connecting assembly, and the other end of the conductive piece forms a second connecting end used for being electrically connected with external pressurizing equipment; and the conductive piece is driven by the driving piece to rotate, so that the first connecting end is connected with the corresponding contact connecting assembly. The inter-phase switching assembly drives the conductive part to rotate through the driving part to achieve automatic switching, manual wire changing is replaced, the operation steps are greatly reduced, the test period is shortened, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of switch cabinet test, in particular to a switch cabinet test auxiliary device and a switch cabinet test system. BACKGROUND

[0002] With the continuous growth of power grid load and the increasing demand for user power supply stability and power quality, the performance of insulation main and auxiliary components of switch cabinet type equipment faces more stringent examination standards, and the importance of daily maintenance and withstand voltage test is significantly improved.

[0003] As a core project of switch cabinet insulation performance detection, AC withstand voltage test usually applies 33kV or 76kV AC test voltage to the tested equipment according to the voltage grade of the switch cabinet to examine the insulation performance of phase-to-phase, phase-to-ground and switch gap. However, the existing switch cabinet withstand voltage test device mainly relies on manual operation to complete the phase-to-phase and phase-to-ground test, which involves multiple line changes by the operator, resulting in complicated operation steps, long operation period and high demand for human resources. SUMMARY

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present application, a switch cabinet test auxiliary device is provided. The switch cabinet test auxiliary device comprises:

[0005] a base;

[0006] a support assembly arranged on the base;

[0007] a plurality of contact connection assemblies arranged on the support assembly; and

[0008] an inter-phase switching assembly comprising a driving member, a mounting seat and a conductive member, the mounting seat being connected to the base, the driving member being mounted on the mounting seat, the conductive member being connected to the output end of the driving member, one end of the conductive member forming a first connection end for connecting with the contact connection assembly, the other end forming a second connection end for electrically connecting with an external pressurizing device, the conductive member being rotated under the driving of the driving member to connect the first connection end with the corresponding contact connection assembly.

[0009] The switch cabinet test auxiliary device provided by the present application can adapt to the phase requirements of different switch cabinets, and has strong versatility. The inter-phase switching assembly automatically switches by rotating the conductive member under the driving of the driving member, replacing manual line changing, greatly reducing the operation steps, shortening the test period and reducing the labor cost. The stable butt joint of the conductive member and the contact connection assembly ensures the reliability of the conductive path during the test, avoids the poor contact problem that may occur in traditional manual operation, reduces the contact between personnel and high-voltage equipment, and improves the operation safety.

[0010] Exemplarily, the support assemblies are multiple and correspond to the contact connection assemblies one by one, each of the support assemblies comprises a sleeve and a telescopic rod, the sleeve is connected to the base, and the telescopic rod is telescopically connected in the sleeve, and the telescopic rod is connected to the contact connection assembly.

[0011] Exemplarily, each of the contact connection assemblies comprises a contact and a connecting rod, the contact is arranged at one end of the connecting rod, and a voltage-withstanding plug is detachably connected to an end of the connecting rod away from the contact, the voltage-withstanding plug is in electrical communication with the contact through the connecting rod, and the telescopic rod is connected to the connecting rod.

[0012] Exemplarily, the conductive member comprises a conductive rod and a spring ring connected to one end of the conductive rod, the voltage-withstanding plug is provided with a slot, the spring ring is inserted into the slot, and a first connecting end is formed on the spring ring and in contact with the slot.

[0013] Exemplarily, the sleeve comprises a barrel and a first magnetic member arranged at the bottom of the barrel, the base comprises a second magnetic member and a switch member, the second magnetic member is switched by the switch member, and the second magnetic member is adsorbed or desorbed with the first magnetic member.

[0014] Exemplarily, each of the telescopic rods is correspondingly connected to a grounding guide rod, one end of each of the grounding guide rods is connected to a ground wire, and the other end is used to contact a phase of the switch cabinet.

[0015] Exemplarily, each of the grounding guide rods is rotatably connected to the corresponding telescopic rod, the plurality of grounding guide rods are connected to a rotating rod, and one end of the rotating rod is connected to a rotating electromagnetic member.

[0016] Exemplarily, a side surface of the end of the grounding guide rod away from the ground wire is provided with a buffer assembly, the buffer assembly comprises an elastic member connected to the grounding guide rod, one end of the elastic member away from the grounding guide rod is connected to a grounding sheet, and the grounding sheet is in communication with the ground wire through the grounding guide rod.

[0017] Exemplarily, the switch cabinet test auxiliary device further comprises a power supply member and a control member, the power supply member is electrically connected to the control member, the control member is electrically connected to the rotating electromagnetic member and controls the switch of the rotating electromagnetic member, and / or

[0018] the control member is electrically connected to the driving member and controls the switch of the driving member.

[0019] According to another aspect of the present application, a switch cabinet test system is also provided. The switch cabinet test system comprises a switch cabinet and any of the above-mentioned switch cabinet test auxiliary devices.

[0020] A series of simplified forms of the concept are introduced in the summary, which will be further described in detail in the specific embodiments. The summary part is not intended to limit the key features and essential technical features of the claimed technical solutions, nor is it intended to determine the protection scope of the claimed technical solutions.

[0021] The advantages and features of the present application will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The following drawings of the present application are hereby incorporated as part of the present application for the purpose of understanding the present application. The embodiments of the present application and their description shown in the drawings are used to explain the principles of the present application. In the drawings,

[0023] Figure 1 Front view of switch cabinet test auxiliary device according to an exemplary embodiment of the present application;

[0024] Figure 2 Top view of switch cabinet test auxiliary device according to an exemplary embodiment of the present application;

[0025] Figure 3 Front view of switch cabinet test auxiliary device according to an exemplary embodiment of the present application;

[0026] Figure 4 Structural schematic diagram of switch cabinet test auxiliary device according to an exemplary embodiment of the present application;

[0027] Figure 5 Structural schematic diagram of switch cabinet test auxiliary device according to an exemplary embodiment of the present application;

[0028] Figure 6 Structural schematic diagram of grounding rod and buffer assembly according to an exemplary embodiment of the present application.

[0029] Among the above drawings, the following reference signs are included:

[0030] 10, switch cabinet test auxiliary device; 110, base; 120, support assembly; 1210, sleeve; 1211, barrel; 1212, first magnetic part; 1220, telescopic rod; 130, contact connecting assembly; 1310, contact; 1320, connecting rod; 1330, pressure-resistant plug; 140, phase-to-phase switching assembly; 1410, driving part; 1420, mounting seat; 1430, conductive part; 1431, conductive rod; 1432, spring ring; 1510, elastic part; 1520, grounding sheet; 1610, grounding rod; 1620, ground wire; 1630, rotating rod; 1640, rotating electromagnetic part; 1650, clamp; 170, power supply part; 180, control part; 190, remote control part. DETAILED DESCRIPTION

[0031] In the following description, numerous specific details are provided to provide a thorough understanding of the present application. One of ordinary skill in the art will recognize, however, that the application can be practiced without one or more of the specific details. Also, techniques and structures that would be known to one of ordinary skill in the art are not described in detail to avoid obscuring the present application. In other instances, various techniques and structures have not been described in detail in order to not unnecessarily obscure the present application.

[0032] An auxiliary device for switch cabinet test is provided in the embodiments of the present application. In combination with reference to Figure 1 , Figure 2 and Figure 4 , the auxiliary device for switch cabinet test 10 comprises a base 110, a support assembly 120, a plurality of contact connecting assemblies 130 and a phase-to-phase switching assembly 140. The support assembly 120 is arranged on the base 110, and the contact connecting assemblies 130 are arranged on the support assembly 120. The number of the contact connecting assemblies 130 can be set as required, for example, the contact connecting assemblies 130 can be three, corresponding to three phases in the switch cabinet. The phase-to-phase switching assembly 140 comprises a driving member 1410, a mounting seat 1420 and a conductive member 1430. The mounting seat 1420 is connected with the base 110, the driving member 1410 is mounted on the mounting seat 1420, the conductive member 1430 is connected with the output end of the driving member 1410, one end of the conductive member 1430 forms a first connecting end for connecting with the contact connecting assembly 130, and the other end forms a second connecting end for electrically connecting with an external pressure equipment. The conductive member 1430 is rotated under the driving of the driving member 1410 to connect the first connecting end with the corresponding contact connecting assembly 130. The base 110 can provide stable support, and the support assembly 120 fixes and positions the plurality of contact connecting assemblies 130 to accurately connect them with the phase conductors in the switch cabinet. The driving member 1410 drives the conductive member 1430 to rotate, the external pressure equipment is connected with the second connecting end, the first connecting end is connected with the target contact connecting assembly 130, and the test voltage is conducted to the corresponding phase. After the test of the phase is completed, the driving member 1410 can drive the conductive member 1430 to rotate to switch the connection, and the test of different phases is realized. Firstly, the plurality of contact connecting assemblies 130 which can be flexibly configured can adapt to the phase requirements of different switch cabinets, and have strong versatility. Secondly, the phase-to-phase switching assembly 140 drives the conductive member 1430 to rotate to realize automatic switching through the driving member 1410, replaces manual wire changing, greatly reduces the operation steps, shortens the test period and reduces the labor cost. Thirdly, the stable butt joint of the conductive member 1430 and the contact connecting assembly 130 ensures the reliability of the conductive path during the test, avoids the poor contact problem that may occur in the traditional manual operation, reduces the contact of personnel with high-voltage equipment, and improves the operation safety.

[0033] The switch cabinet test auxiliary device 10 provided by the application can adapt to the phase requirements of different switch cabinets, and has strong versatility. The phase-to-phase switching assembly 140 drives the conductive part 1430 to rotate through the driving part 1410 to realize automatic switching, replaces manual line changing, greatly reduces the operation steps, shortens the test period, and reduces the labor cost. The stable docking of the conductive part 1430 and the contact connection assembly 130 ensures the reliability of the conductive path during the test process, avoids the poor contact problem that may occur in traditional manual operation, reduces the contact between personnel and high-voltage equipment, and improves the operation safety.

[0034] Exemplarily, in combination with reference to Figure 1 、 Figure 2 and Figure 3 , the support assembly 120 is multiple and connected one by one with the contact connection assembly 130. Each support assembly 120 includes a sleeve 1210 and a telescopic rod 1220. The sleeve 1210 is connected with the base 110, and the telescopic rod 1220 is telescopically connected in the sleeve 1210. The telescopic rod 1220 is connected with the contact connection assembly 130. In this way, the height and position of the contact connection assembly 130 can be flexibly adjusted, ensuring that the contact connection assembly 130 is accurately docked with the phase conductors of different positions and specifications in the switch cabinet, and having strong adaptability. The stability of the connection during the test process is ensured, the test effect is not affected by the shaking of the contact, and the practicality and reliability of the device are further improved. Correspondingly, the number of the base 110 can be the same as that of the support assembly 120 and be arranged one by one. The sleeve 1210 can also be connected with a fastener. The fastener can pass through the sleeve 1210 and abut against the telescopic rod 1220 to fix the telescopic rod 1220. When the contact connection assembly 130 is adjusted to a predetermined position, the telescopic rod 1220 is fixed by the fastener, and the contact connection assembly 130 is more stably fixed at the predetermined position.

[0035] Exemplarily, in combination with reference to Figure 1 、 Figure 2 and Figure 3 , each contact connection assembly 130 includes a contact 1310 and a connecting rod 1320. The contact 1310 is arranged at one end of the connecting rod 1320. A pressure-resistant plug 1330 is detachably connected to the end of the connecting rod 1320 away from the contact 1310. The pressure-resistant plug 1330 is in electrical communication with the contact 1310 through the connecting rod 1320. The telescopic rod 1220 is connected with the connecting rod 1320. The contact 1310 and the pressure-resistant plug 1330 are in electrical communication through the connecting rod 1320, meeting the test conductive requirements. The detachable arrangement of the pressure-resistant plug 1330 enables the switch cabinet test auxiliary device 10 to flexibly adapt to different test scenarios, enhancing the versatility of the device. The telescopic rod 1220 is connected with the connecting rod 1320, which can be adjusted in cooperation with the position of the contact 1310, ensuring stable contact with the phase conductor and improving the test reliability.

[0036] Exemplarily, the contact 1310 can be a rosette contact 1310. The rosette contact 1310 can form annular surface contact with the static contact 1310 of the switch cabinet, perfectly fitting the annular balanced force state of the moving and static contacts 1310 in actual operation. Compared with the traditional wire clamp type single-point contact, this contact mode not only increases the conductive contact area, making the current conduction more uniform, but also ensures close contact and balanced force through the elastic fitting of the multi-lobe structure, fundamentally avoiding the risk of static contact 1310 burning caused by single-point overcurrent, effectively protecting the equipment from damage, while ensuring the stability and reliability of the conductive path during the test process, improving the safety and accuracy of the test.

[0037] Exemplarily, in combination with reference to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the conductive part 1430 includes a conductive rod 1431 and a spring ring 1432 connected to one end of the conductive rod 1431, and the voltage-withstanding plug 1330 is provided with a slot, the spring ring 1432 is inserted into the slot, and the first connecting end is formed on the spring ring 1432 and in contact with the slot. The spring ring 1432 has a certain elasticity, which can ensure the close contact of the first connecting end with the slot, ensure stable conduction, and avoid poor contact. The spring ring 1432 can also buffer the impact during insertion, adapt to slight size differences, reduce component wear, and improve the reliability and durability of the connection.

[0038] Exemplarily, in combination with reference to Figure 1 and Figure 3 , the sleeve 1210 can include a barrel 1211 and a first magnetic part 1212 provided at the bottom of the barrel 1211, and the base 110 includes a second magnetic part and a switch part, and the second magnetic part is switched by the switch part to be attracted or released from the first magnetic part 1212. By controlling the attraction or release of the second magnetic part and the first magnetic part 1212 by the switch part, the fixing and dismounting of the sleeve 1210 on the base 110 can be quickly realized, simplifying the device assembly and adjustment process. The magnetic connection is stable and convenient to operate, without the need for complex mechanical locking structures, improving the efficiency of preparation and storage before testing.

[0039] Exemplarily, in combination with reference to Figure 1 , Figure 5 and Figure 6 , each telescopic rod 1220 is connected with a grounding guide rod 1610, one end of each grounding guide rod 1610 is connected with a ground wire 1620, and the other end is used to contact the phase of the switch cabinet. In this way, accurate contact with each phase of the switch cabinet can be quickly realized, residual charge before and after the test is discharged through the ground wire 1620, ensuring safe operation; independent corresponding design avoids interference between phases, improves discharge reliability, simplifies manual discharge steps, and improves test efficiency.

[0040] Exemplarily, in combination with reference to Figure 1 , Figure 5 and Figure 6 , each grounding guide rod 1610 is rotatably connected with the corresponding telescopic rod 1220, and the plurality of grounding guide rods 1610 are connected with the rotating rod 1630, one end of the rotating rod 1630 is connected with the rotating electromagnetic member 1640. The rotating electromagnetic member 1640 drives the rotating rod 1630 to drive the plurality of grounding guide rods 1610 to rotate together, so that the grounding guide rod 1610 contacts the corresponding phase of the switch cabinet to release the residual charge. After the discharge is completed, the rotating electromagnetic member 1640 reverses the action, and the grounding guide rod 1610 rotates back to disengage the phase. In this way, the rotating electromagnetic member 1640 realizes the automatic start and stop of the grounding guide rod 1610, replaces manual operation, reduces the risk of personnel contacting high voltage, and the rotating rod 1630 controls the plurality of grounding guide rods 1610 to move together, thereby improving the discharge efficiency. Exemplarily, the grounding guide rod 1610 and the telescopic rod 1220 can be rotatably connected through the hoop 1650.

[0041] Exemplarily, in combination with reference to Figure 1 , Figure 5 and Figure 6 , the side surface of the end of the grounding guide rod 1610 away from the ground wire 1620 is provided with a buffer assembly, the buffer assembly includes an elastic member 1510 connected with the grounding guide rod 1610, one end of the elastic member 1510 away from the grounding guide rod 1610 is connected with a grounding sheet 1520, and the grounding sheet 1520 is in communication with the ground wire 1620 through the grounding guide rod 1610. When the grounding guide rod 1610 rotates to contact the phase of the switch cabinet, the grounding sheet 1520 first contacts the phase, and the elastic member 1510 is compressed and shrunk to buffer the impact force. In this way, the impact force during contact is buffered, and hard collision damage to the grounding guide rod 1610 and the phase of the switch cabinet is avoided. The grounding sheet 1520 can increase the contact area, ensure the stability of the discharge, and improve the durability of the device and the safety of the test.

[0042] Exemplarily, in combination with reference to Figure 2 , Figure 4 and Figure 5The switch cabinet test auxiliary device 10 further comprises a power supply 170 and a control component 180. The power supply 170 is electrically connected with the control component 180. The control component 180 is electrically connected with the rotating electromagnetic component 1640 and controls the switch of the rotating electromagnetic component 1640. The power supply 170 can provide power for the rotating electromagnetic component 1640 and the control component 180. The control component 180 controls the rotating electromagnetic component 1640 to start or stop according to the test procedure instructions, drives the rotating rod 1630 to rotate the grounding guide rod 1610, and makes the grounding sheet 1520 contact or separate from the phase of the switch cabinet, thereby completing the safe discharge in cooperation with the buffer assembly. The automation degree of operation is higher, the operation can be more accurate, the risk of operators contacting high voltage is reduced, and the continuity and safety of the test procedure are improved. The control component 180 is electrically connected with the driving component 1410 and controls the switch of the driving component 1410. The control component 180 can control the driving component 1410 to start or stop according to the test procedure instructions, and the driving component 1410 drives the conductive component 1430 to rotate, so that the first connecting end is connected with the target contact head connection assembly 130 to perform the corresponding phase test. After the test is completed, the driving component 1410 is controlled to drive the conductive component 1430 to disconnect and switch to the next group, thereby realizing the automatic switching of different phase tests. In this way, through the control of the control component 180 on the driving component 1410, the cumbersome steps of manual line changing are saved, the labor consumption is reduced, the efficiency and accuracy of test switching are improved, and the whole test procedure is more efficient and safe. The control component 180 can be a remote control switch. The switch cabinet test auxiliary device 10 can further comprise a remote control component 190 to control the control component 180.

[0043] The working process can be as follows. The grounding guide rod 1610 is installed on the telescopic rod 1220 through the clamp 1650, and the grounding guide rod 1610 is connected to the grounding bar inside the switch cabinet through the ground wire 1620. The rotating electromagnetic component 1640 is installed on the inner side wall of the PT cabinet of the switch cabinet. Then, the base 110 and the sleeve 1210 are placed inside the PT cabinet of the switch cabinet, and the height of the telescopic rod 1220 is adjusted as needed, so that the contact head 1310 can be stably connected to the corresponding phase conductor.

[0044] The driving component 1410 is fixedly installed on the mounting seat 1420 connected with the middle telescopic rod 1220. The second connecting end of the conductive rod 1431 is connected with an external pressurizing equipment. In the preparation stage, the rotating electromagnetic component 1640 is first turned on to drive each grounding guide rod 1610, so that the end of the grounding guide rod 1610 contacts the corresponding phase, thereby realizing the pre-discharge operation before the withstand voltage test.

[0045] Subsequently, the driving member 1410 is started, the conductive rod 1431 is driven to move, the spring ring 1432 is inserted into the slot inside the corresponding pressure plug 1330, and reliable electrical connection between phases is completed. After the connection is in place, the driving member 1410 is powered off with the rotating electromagnetic member 1640, and the system enters a stable test state.

[0046] The external pressure equipment is then started, and the test object is subjected to a pressure test. After the test is completed, the external equipment stops pressurizing, the rotating electromagnetic member 1640 is actuated again, the ends of all grounding rods 1610 are crimped to the phase conductors, and rapid discharge processing after the test is performed to ensure operation safety.

[0047] According to another aspect of the present application, a switch cabinet test system is also provided. The switch cabinet test system can include a switch cabinet and any of the switch cabinet test auxiliary devices 10 described above. The switch cabinet is provided with a contact connection assembly 130 that can correspondingly connect the static contacts 1310 and other components of each phase, and cooperates with the switch cabinet test auxiliary device 10 to complete the corresponding test operation. Since the switch cabinet test auxiliary device 10 adopts the technical solutions of any of the above embodiments, the switch cabinet test system at least has the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0048] In the description of the present application, it should be understood that the orientation words such as "front", "back", "up", "down", "left", "right", "transverse", "vertical", "vertical", "horizontal", and "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without making the opposite statement, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner" and "outer" refer to the inner and outer of the contour of each component itself.

[0049] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof shall relate to the application as it is oriented in the drawing figures. However, it is to be understood that the application can assume various alternative orientations and, accordingly, such terms are not to be taken as limitations of the present application, except where so expressly defined by the patentee. All such terms are to be interpreted in the manner that the terms are construed in the section entitled, "Definition of Terms", recited below. It is also to be understood that the following description, together with the accompanying figures, will be used herein to describe the application.

[0050] It is to be understood that the terms so used are merely descriptive, and do not pretent to limit the inventive embodiments disclosed herein to the precise form disclosed. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, steps, operations, components, elements, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, components, elements, and / or groups thereof.

[0051] It is also to be understood that the terminology and phraseology employed herein are for the purpose of description and illustration only and should not be regarded as limiting. The use of heading and subheadings are intended to guide the reader only and are not to be construed as limiting.

[0052] The present application has been described in terms of specific embodiments thereof. It is to be understood to those skilled in the art that the application is not limited to the specific embodiments described and rations herein, but rather, bodies modified and varied within the scope and spirit of the application, as described. It is therefore desired that the present application be interpreted as broadly as possible in order to include all such modifications and variations. The application has been described with reference to the preferred embodiments. Obviously, modifications and alterations will occur to others upon reading and understanding the preceding specification and accompanying drawings. It is intended to include all such modifications and alterations in so far as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. Switchgear test auxiliary device, characterized in that, The utility model relates to a switch cabinet test auxiliary device which comprises a base, a plurality of support assemblies arranged on the base, a plurality of contact connection assemblies arranged on the support assemblies, and an inter-phase switching assembly. The support assemblies are in one-to-one correspondence with the contact connection assemblies. Each of the contact connection assemblies comprises a contact and a connecting rod. The contact is arranged at one end of the connecting rod. The connecting rod is detachably connected with a pressure-resistant plug at the end away from the contact. The pressure-resistant plug is in electrical communication with the contact through the connecting rod.

2. Switchgear test assisting device according to claim 1, characterized in that The conductive member comprises a conductive rod and a spring ring connected to one end of the conductive rod.

3. Switchgear test assisting device according to claim 2, characterized in that The pressure-resistant plug is provided with a slot.

4. Switchgear test assisting device according to claim 3, characterized in that The spring ring is inserted into the slot.

5. The switchgear test aid of claim 2, wherein, The first connecting end is formed on the spring ring and in contact with the slot.

6. Switchgear test assisting device according to claim 5, characterized in that The sleeve comprises a cylinder and a first magnetic member arranged at the bottom of the cylinder.

7. Switchgear test assisting device according to claim 6, characterized in that The base comprises a second magnetic member and a switch member.

8. Switchgear test aid according to claim 7, characterized in that The second magnetic member is switched by the switch member to be attracted or unattracted to the first magnetic member.

9. Switchgear test assisting device according to claim 7, characterized in that Each of the grounding guide rods is connected with a ground wire at one end and in contact with the phase of a switch cabinet at the other end. Each of the grounding guide rods is rotatably connected with the corresponding telescopic rod. The plurality of grounding guide rods are connected with a rotating rod.

10. A switchgear test system characterized by, One end of the rotating rod is connected with a rotating electromagnetic member. The side of the end of the grounding guide rod away from the ground wire is provided with a buffer assembly. The buffer assembly comprises a resilient member connected with the grounding guide rod. The end of the resilient member away from the grounding guide rod is connected with a grounding sheet. The grounding sheet is in communication with the ground wire through the grounding guide rod. The switch cabinet test auxiliary device further comprises a power supply member and a control member. The control member is electrically connected with the rotating electromagnetic member and controls the switch of the rotating electromagnetic member. The control member is electrically connected with the driving member and controls the switch of the driving member. The utility model relates to a switch cabinet and a switch cabinet test auxiliary device as claimed in any one of claims 1 to 9.

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