Switch cabinet

Abstract

The utility model belongs to the technical field of high-voltage switch equipment, and discloses a switch cabinet. The switch cabinet comprises a cabinet body, a circuit breaker, an electric handcart, a travel switch and a microswitch, wherein the circuit breaker is arranged on the electric handcart; the travel switch is arranged at a first test position and a first working position of the cabinet body; the microswitch is arranged at a second test position and a second working position of the cabinet body; the electric handcart can drive the circuit breaker to move to an area corresponding to the first test position and the second test position, and the circuit breaker abuts against the travel switch at the first test position and abuts against the microswitch at the second test position; the electric handcart can drive the circuit breaker to move to an area corresponding to the first working position and the second working position, and the circuit breaker abuts against the travel switch at the first working position and abuts against the microswitch at the second working position. The switch cabinet can perform double confirmation on the position of the circuit breaker, ensures the accuracy and reliability of the position of the circuit breaker, and enables the working reliability of the switch cabinet to be higher.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switchgear, in particular to a switch cabinet. Background Art

[0002] In the process of realizing one-touch sequential control of the circuit breaker (electric one-touch swinging in or out of the circuit breaker) by the electric trolley in the switch cabinet; when the circuit breaker is shaken to the test position, the electric trolley hits the travel switch set at the test position, so that the travel switch sends a signal that the circuit breaker is in the test position; correspondingly, when the circuit breaker is shaken to the working position, the electric trolley hits the travel switch set at the working position, so that the travel switch sends a signal that the circuit breaker is in the working position; thereby, the specific position of the circuit breaker can be confirmed according to the signal sent by the travel switch.

[0003] However, since only one type of switch, namely the travel switch, is used to confirm the position of the circuit breaker, it is difficult to ensure the accuracy and reliability of the circuit breaker position confirmation, resulting in low working reliability of the entire switch cabinet.

[0004] Therefore, there is an urgent need for a switch cabinet to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a switch cabinet that can ensure the accuracy and reliability of the position of the circuit breaker, so that the working reliability of the switch cabinet is higher.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Switchgear, including cabinet, circuit breaker, electric trolley, limit switch and micro switch:

[0008] The circuit breaker is arranged on the electric trolley;

[0009] The travel switch is arranged at a first test position and a first working position of the cabinet;

[0010] The micro switch is set at a second test position and a second working position of the cabinet, the first test position corresponds to the second test position, and the first working position corresponds to the second working position;

[0011] The electric trolley is capable of driving the circuit breaker to move to areas corresponding to the first test position and the second test position of the cabinet. The circuit breaker abuts against the limit switch in the first test position and the micro switch in the second test position. The micro switch is used to issue first position information, and the limit switch is used to issue second position information. Both the first position information and the second position information are used to indicate that the circuit breaker is in the test position.

[0012] The electric trolley can drive the circuit breaker to move to the areas corresponding to the first working position and the second working position of the cabinet. The circuit breaker abuts against the limit switch in the first working position and the micro switch in the second working position. The micro switch is used to issue third position information, and the limit switch is used to issue fourth position information. Both the third position information and the fourth position information are used to indicate that the circuit breaker is in the working position.

[0013] As an optional solution, the first test position is provided with at least two limit switches, and the at least two limit switches are arranged in a straight line, and the first working position is provided with at least two limit switches, and the at least two limit switches are arranged in a straight line, and the second test position is provided with at least two micro switches, and the at least two micro switches are arranged in a straight line, and the second working position is provided with at least two micro switches, and the at least two micro switches are arranged in a straight line.

[0014] As an optional solution, the cabinet includes a circuit breaker chamber, the second test position and the second working position are arranged on a first top plate of the circuit breaker chamber, and the electric trolley can drive the circuit breaker into or out of the circuit breaker chamber.

[0015] As an optional solution, the switch cabinet further includes:

[0016] The mounting frame is arranged at the second test position and the second working position in the circuit breaker chamber, and the micro switch is mounted on the mounting frame.

[0017] As an optional solution, the installation frame includes:

[0018] a second top plate, detachably mounted to the second test position and the second working position within the circuit breaker chamber;

[0019] a back plate connected to the second top plate, wherein the micro switch is mounted on one side of the back plate;

[0020] The first side plate is connected between the second top plate and the back plate.

[0021] As an optional solution, two first side panels are provided opposite to each other, and the micro switch is located between the two first side panels.

[0022] As an optional solution, the second top plate includes N1 first mounting holes, the first top plate includes M1 second mounting holes, M1 is an integer greater than N1, and the aligned first mounting holes and the second mounting holes are fixed by first bolts.

[0023] As an optional solution, the micro switch includes a contact, and the switch cabinet further includes:

[0024] The abutment member is provided on the third top plate of the circuit breaker, and the circuit breaker can drive the abutment member to move synchronously so that the abutment member abuts against the contacts located at the second test position and the second working position.

[0025] As an optional solution, the abutment member includes:

[0026] a connecting plate, detachably mounted on the third top plate;

[0027] The second side plates are arranged on two opposite sides of the connecting plate, and the two second side plates correspondingly abut against two opposite sides of the circuit breaker.

[0028] As an optional solution, the connecting plate includes N2 third mounting holes, the third top plate includes M2 fourth mounting holes, M2 is an integer greater than N2, and the aligned third mounting holes are fixed to the fourth mounting holes by second bolts.

[0029] Beneficial effects:

[0030] The switch cabinet proposed by the utility model sets the travel switch at the first test position and the first working position of the cabinet body, sets the micro switch at the second test position and the second working position of the cabinet body, and makes the first test position correspond to the second test position, and the first working position correspond to the second working position; when the electric trolley drives the circuit breaker to move to the area corresponding to the first test position and the second test position of the cabinet body, the circuit breaker abuts against the travel switch at the first test position and the micro switch at the second test position, the micro switch is used to send out the first position information, and the travel switch is used to send out the second position information, and both the first position information and the second position information are used to indicate that the circuit breaker is in the test position; when the electric trolley drives the circuit breaker to move to the area corresponding to the first working position and the second working position of the cabinet body, the circuit breaker abuts against the travel switch at the first working position The microswitch is in contact with the first working position and is in contact with the microswitch in the second working position. The microswitch is used to send out the third position information, and the travel switch is used to send out the fourth position information. The third position information and the fourth position information are both used to indicate that the circuit breaker is in the working position. By using the microswitch and the travel switch at the same time to double-confirm the position of the circuit breaker, when any one of the switches is damaged, the other switch is guaranteed to be able to normally confirm the position of the circuit breaker, thereby ensuring the accuracy and reliability of the circuit breaker position confirmation, and further ensuring the high working reliability of the entire switch cabinet. In addition, the travel switch and the microswitch are set correspondingly, so that the layout of the travel switch and the microswitch is reasonable, and it can be guaranteed that the travel switch and the microswitch have good working independence from each other without interference, thereby better ensuring the accuracy and reliability of the circuit breaker position confirmation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a partial structural diagram of the switch cabinet provided in the utility model (when the circuit breaker is in the working position) Figure 1 ;

[0032] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0033] Figure 3 This is a partial structural diagram of the switch cabinet provided in the utility model (when the circuit breaker is in the test position) Figure 2 ;

[0034] Figure 4 yes Figure 3 Schematic diagram of the local enlarged structure at B in the middle;

[0035] Figure 5 It is a structural schematic diagram of the first top plate provided in the utility model;

[0036] Figure 6 It is a structural diagram of the installation frame provided in the utility model;

[0037] Figure 7 It is a structural schematic diagram of the abutment member provided in the utility model.

[0038] In the picture:

[0039] 1. Cabinet; 11. First top plate; 111. Second mounting hole;

[0040] 2. Circuit breaker; 3. Micro switch; 31. Contact;

[0041] 4. Mounting frame; 41. Second top plate; 411. First mounting hole; 42. Back plate; 43. First side plate;

[0042] 5. Abutment member; 51. Connecting plate; 511. Third mounting hole; 52. Second side plate. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0044] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0047] This embodiment provides a switchgear including a circuit breaker, capable of ensuring accurate and reliable position confirmation of the circuit breaker in both a test position and an operating position, thereby ensuring high operational reliability of the entire switchgear. The operating principle of the switchgear is described in the prior art and will not be described in detail herein.

[0048] Specifically, if Figures 1 to 4As shown, the switch cabinet also includes a cabinet body 1, an electric trolley, a limit switch and a micro switch 3; wherein, the circuit breaker 2 is arranged on the electric trolley; the limit switch is arranged at the first test position and the first working position of the cabinet body 1; the micro switch 3 is arranged at the second test position and the second working position of the cabinet body 1, the first test position corresponds to the second test position, and the first working position corresponds to the second working position; the electric trolley can drive the circuit breaker 2 to move to the area corresponding to the first test position and the second test position of the cabinet body 1, the circuit breaker 2 abuts against the limit switch in the first test position and the micro switch in the second test position. 3, the microswitch 3 is used to send out the first position information, the travel switch is used to send out the second position information, and the first position information and the second position information are both used to indicate that the circuit breaker 2 is in the test position; the electric trolley can drive the circuit breaker 2 to move to the areas corresponding to the first working position and the second working position of the cabinet 1, the circuit breaker 2 abuts against the travel switch in the first working position and the microswitch 3 in the second working position, the microswitch 3 is used to send out the third position information, the travel switch is used to send out the fourth position information, and the third position information and the fourth position information are both used to indicate that the circuit breaker 2 is in the working position.

[0049] Compared with the prior art, the switch cabinet in this embodiment is provided with micro switches 3 at the second test position and the second working position of the cabinet body 1 respectively; by setting the travel switch at the first test position and the first working position of the cabinet body 1, and setting the micro switch 3 at the second test position and the second working position of the cabinet body 1, and making the first test position correspond to the second test position, and the first working position correspond to the second working position; Figure 3 and Figure 4 As shown, when the electric trolley drives the circuit breaker 2 to move to the area corresponding to the first test position and the second test position of the cabinet 1, the circuit breaker 2 abuts against the limit switch of the first test position and the micro switch 3 of the second test position. The micro switch 3 is used to send the first position information, and the limit switch is used to send the second position information. The first position information and the second position information are both used to indicate that the circuit breaker 2 is in the test position. Correspondingly, as shown in FIG. Figure 1 and Figure 2As shown, when the electric trolley drives the circuit breaker 2 to move to the areas corresponding to the first working position and the second working position of the cabinet 1, the circuit breaker 2 abuts against the limit switch of the first working position and the micro switch 3 of the second working position. The micro switch 3 is used to send the third position information, and the limit switch is used to send the fourth position information. The third position information and the fourth position information are both used to indicate that the circuit breaker 2 is in the working position. By using the micro switch 3 and the limit switch to perform dual confirmation of the position of the circuit breaker 2 at the same time, when any one of the switches is damaged, it is ensured that the other switch can normally confirm the position of the circuit breaker 2, thereby ensuring the accuracy and reliability of the position confirmation of the circuit breaker 2, and further ensuring the high working reliability of the entire switch cabinet.

[0050] It is worth noting that the areas corresponding to the first test position, the second test position of the cabinet 1 and the test position of the circuit breaker 2 are on the same plane, and the areas corresponding to the first working position, the second working position of the cabinet 1 and the working position of the circuit breaker 2 are on the same plane.

[0051] Specifically, the microswitch 3 in the second test position and the second working position is located above the circuit breaker 2, and the travel switch in the first test position and the first working position is located below the circuit breaker 2, so that the travel switch in the first test position and the microswitch 3 in the second test position are relatively arranged, and the travel switch in the first working position and the microswitch 3 in the second working position are relatively arranged, so that the layout of the travel switch and the microswitch 3 is reasonable, and it can be ensured that the travel switch and the microswitch 3 have good working independence from each other without interference, thereby better ensuring the accuracy and reliability of the position confirmation of the circuit breaker 2.

[0052] Furthermore, if Figures 1 to 4 As shown, at least two travel switches are provided in the first test position, and the at least two travel switches are arranged in a straight line to ensure that the circuit breaker 2 can abut against the at least two travel switches in the first test position at the same time; and at least two travel switches are provided in the first working position, and the at least two travel switches are arranged in a straight line to ensure that the circuit breaker 2 can abut against the at least two travel switches in the first working position at the same time; and at least two micro switches 3 are provided in the second test position, and the at least two micro switches 3 are arranged in a straight line to ensure that the circuit breaker 2 can abut against the at least two micro switches 3 in the second test position at the same time; and at least two micro switches 3 are provided in the second working position, and the at least two micro switches 3 are arranged in a straight line to ensure that the circuit breaker 2 can abut against the at least two micro switches 3 in the second working position at the same time; through the above arrangement, it can be ensured that the abutment stability and reliability between the travel switch and the micro switch 3 and the circuit breaker 2 are good.

[0053] In this embodiment, Figure 3 and Figure 4As shown, two micro switches 3 arranged in a straight line are provided at the second test position; Figure 1 and Figure 2 As shown, three micro switches 3 are arranged in a straight line at the second working position. There is no specific limit on the number of micro switches 3 provided at the second test position and the second working position. Similarly, there is no specific limit on the number of travel switches provided at the first test position and the first working position, and this number is determined based on actual working conditions and requirements.

[0054] Further, if Figure 1 and Figure 3 As shown, the cabinet 1 includes a circuit breaker compartment. The second test position and the second working position are set on the first top plate 11 of the circuit breaker compartment. An electric trolley can drive the circuit breaker 2 into or out of the circuit breaker compartment. The electric trolley specifically refers to a trolley that can automatically move linearly at the touch of a button, thereby driving the circuit breaker 2 into or out of the circuit breaker compartment through the movement of the trolley. Here, the installation and operation process of the electric trolley in the circuit breaker compartment is the same as that in existing switchgear and will not be described in detail here.

[0055] Further, if Figures 1 to 6 As shown, the switch cabinet further includes a mounting frame 4, which is arranged at the second test position and the second working position in the circuit breaker chamber. The micro switch 3 is mounted on the mounting frame 4 so that the micro switch 3 can be mounted on the first top plate 11 of the circuit breaker chamber through the mounting frame 4.

[0056] Specifically, if Figure 2 、 Figure 4 and Figure 6 As shown, the mounting frame 4 includes a second top plate 41, a back plate 42, and a first side plate 43. The second top plate 41 can be removably mounted in the second test position or the second working position within the circuit breaker chamber. The back plate 42 is vertically connected to one side of the second top plate 41, and the micro switch 3 is mounted on one side of the back plate 42. The first side plate 43 is connected between the second top plate 41 and the back plate 42 to form an L-shaped mounting frame 4. In this embodiment, a mounting frame 4 is provided in each of the second test position and the second working position.

[0057] Further, if Figure 2 、 Figure 4 and Figure 6 As shown, two first side panels 43 are relatively arranged, and the micro switch 3 is located between the two first side panels 43. That is, an accommodating space can be enclosed by the second top panel 41, the back panel 42 and the two first side panels 43, so that the micro switch 3 can be placed in the accommodating space, thereby providing a certain degree of protection for the micro switch 3 through the accommodating space formed by the enclosure, thereby better protecting the micro switch 3.

[0058] It is worth noting that if Figure 2 and Figure 4 As shown, the micro switch 3 includes a contact 31. When the micro switch 3 is mounted on one side of the back plate 42, that is, when the micro switch 3 is accommodated in the above-mentioned accommodation space, the contact 31 of the micro switch 3 extends downward out of the accommodation space to be arranged close to the circuit breaker 2, so as to facilitate smooth abutment between the contact 31 and the circuit breaker 2 and avoid interference between the back plate 42 and the first side plate 43 with the abutment operation of the contact 31.

[0059] Further, if Figures 2 to 6 As shown, the second top plate 41 includes N1 first mounting holes 411, and the first top plate 11 includes M1 second mounting holes 111, where M1 is an integer greater than N1. The aligned first mounting holes 411 and the second mounting holes 111 are fixed by first bolts, so that the mounting position of the second top plate 41 on the first top plate 11 can be adjusted, thereby ensuring that the second top plate 41 is accurately mounted in the second test position and the second working position, so as to ensure the position accuracy of the micro switch 3 in the second test position and the second working position.

[0060] By making the installation position of the second top plate 41 on the first top plate 11 adjustable, on the one hand, the second top plate 41 and the micro switch 3 can be accurately aligned with the second test position and the second working position of the circuit breaker 2, ensuring that the micro switch 3 can send an accurate position signal when the circuit breaker 2 is in the test position or the working position. On the other hand, because the test position and the working position of different types of circuit breakers 2 may be different, the position of the micro switch 3 is adjusted by the second top plate 41, thereby ensuring that the position of the micro switch 3 can be adapted to a variety of different types of circuit breakers 2, thereby improving the versatility and applicability of the entire switchgear.

[0061] Further, if Figure 2 、 Figure 4 and Figure 7 As shown, the switch cabinet further includes an abutment 5, which is provided on the third top plate of the circuit breaker 2. The circuit breaker 2 can drive the abutment 5 to move synchronously, so that the abutment 5 moves with the circuit breaker 2 to abut against the contact 31 of the micro switch 3 located in the second test position and the second working position. That is, through the direct abutment between the abutment 5 and the contact 31, the micro switch 3 sends a position signal indicating that the circuit breaker 2 is in the test position or the working position.

[0062] like Figure 2 and Figure 4As shown, by providing an abutment member 5 that directly abuts against the contact 31, on the one hand, it can prevent the contact 31 from directly abutting against the uneven third top plate of the circuit breaker 2 and damaging the contact 31, thereby better protecting the contact 31 and extending the service life of the contact 31 and the entire micro switch 3; on the other hand, it can ensure that the abutment between the circuit breaker 2 and the micro switch 3 is not stuck when the circuit breaker 2 is shaken in or out, and ensure that the abutment member 5 can smoothly abut against the contact 31, thereby ensuring the smooth abutment between the circuit breaker 2 and the micro switch 3.

[0063] Specifically, if Figure 7 As shown, the abutment 5 includes a connecting plate 51 and a second side plate 52; wherein, the connecting plate 51 is detachably mounted on the third top plate so that the uneven third top plate can be covered by the connecting plate 51, so that the contact 31 directly and smoothly abuts against the connecting plate 51, ensuring the smoothness and success of the abutment operation; the second side plates 52 are arranged on opposite sides of the connecting plate 51, and the two second side plates 52 correspondingly abut against the opposite sides of the circuit breaker 2, so that the connecting plate 51 and the two second side plates 52 form a U-shaped abutment 5 between each other, and the third top plate of the circuit breaker 2 is limited in the U-shaped structure to ensure the installation stability and reliability of the abutment 5 on the third top plate of the circuit breaker 2.

[0064] By forming a U-shaped abutment 5 between the connecting plate 51 and the two second side plates 52, on the one hand, the structure of the abutment 5 is simple, the cost is low, and the installation method on the circuit breaker 2 is simple and convenient; on the other hand, the stability of the installation between the abutment 5 and the circuit breaker 2 can be ensured.

[0065] Furthermore, by making the connecting plate 51 detachably mounted on the third top plate, the connecting plate 51 and the entire abutting member 5 can be easily disassembled and assembled, making the abutting member 5 easier to disassemble and assemble on the circuit breaker 2 and facilitating subsequent maintenance and replacement of the abutting member 5 .

[0066] Further, if Figure 2 、 Figure 4 and Figure 7 As shown, the connecting plate 51 includes N2 third mounting holes 511, and the third top plate includes M2 fourth mounting holes, where M2 is an integer greater than N2. The aligned third mounting holes 511 and the fourth mounting holes are fixed by a second bolt to adjust the installation position of the connecting plate 51 on the third top plate so that the position of the connecting plate 51 can be set corresponding to the position of the contact 31 of the micro switch 3 located at the second test position and the second working position, thereby ensuring the abutment accuracy between the connecting plate 51 and the contact 31 of the micro switch 3.

[0067] The specific working process of the switch cabinet in this embodiment is as follows:

[0068] First, the electric trolley is started, and the electric trolley drives the circuit breaker 2 to swing into the circuit breaker chamber in a straight line. When the electric trolley drives the circuit breaker 2 to move to the area corresponding to the first test position and the second test position of the cabinet 1, the electric trolley hits the limit switch located in the first test position, causing the contacts of the limit switch to operate to switch the circuit, so that the limit switch sends the second position information; at the same time, the connecting plate 51 on the circuit breaker 2 abuts against the contact 31 of the micro switch 3 in the second test position, so that the micro switch 3 sends the first position information. The first position information and the second position information both indicate that the circuit breaker 2 is in the test position.

[0069] Afterwards, the electric trolley continues to drive the circuit breaker 2 into the circuit breaker chamber in a straight line. When the electric trolley drives the circuit breaker 2 to move to the area corresponding to the first working position and the second working position of the cabinet 1, the electric trolley hits the limit switch located at the first working position, causing the contacts of the limit switch to operate to switch the circuit, so that the limit switch sends out the fourth position information; at the same time, the connecting plate 51 on the circuit breaker 2 abuts against the contact 31 of the micro switch 3 in the second working position, so that the micro switch 3 sends out the third position information. The third position information and the fourth position information both indicate that the circuit breaker 2 is in the working position.

[0070] The switch cabinet in this embodiment provides a micro switch 3 in the second test position and the second working position, and provides a limit switch in the first test position and the first working position. The micro switch 3 and the limit switch are used to realize dual confirmation of the position of the circuit breaker 2, thereby ensuring the accuracy of the position of the circuit breaker 2 during the shaking process.

[0071] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Switchgear, characterized in that, It includes a cabinet (1), a circuit breaker (2), an electric trolley, a travel switch and a micro switch (3): The circuit breaker (2) is arranged on the electric trolley; The travel switch is arranged at a first test position and a first working position of the cabinet (1); The micro switch (3) is arranged at a second test position and a second working position of the cabinet (1), the first test position corresponds to the second test position, and the first working position corresponds to the second working position; The electric trolley can drive the circuit breaker (2) to move to the area corresponding to the first test position and the second test position of the cabinet (1); the circuit breaker (2) abuts against the limit switch at the first test position and abuts against the micro switch (3) at the second test position; the micro switch (3) is used to send first position information, and the limit switch is used to send second position information; the first position information and the second position information are both used to indicate that the circuit breaker (2) is in the test position; The electric trolley can drive the circuit breaker (2) to move to the area corresponding to the first working position and the second working position of the cabinet (1); the circuit breaker (2) abuts against the limit switch at the first working position and abuts against the micro switch (3) at the second working position; the micro switch (3) is used to send third position information; the limit switch is used to send fourth position information; the third position information and the fourth position information are both used to indicate that the circuit breaker (2) is in the working position.

2. The switch cabinet according to claim 1, characterized in that: The first test position is provided with at least two travel switches, the at least two travel switches are arranged in a straight line, and the first working position is provided with at least two travel switches, the at least two travel switches are arranged in a straight line, and the second test position is provided with at least two micro switches (3), the at least two micro switches (3) are arranged in a straight line, and the second working position is provided with at least two micro switches (3), the at least two micro switches (3) are arranged in a straight line.

3. The switch cabinet according to claim 1, characterized in that: The cabinet (1) includes a circuit breaker chamber, the second test position and the second working position are arranged on a first top plate (11) of the circuit breaker chamber, and the electric trolley can drive the circuit breaker (2) to swing in or out of the circuit breaker chamber.

4. The switch cabinet according to claim 3, characterized in that: The switch cabinet further comprises: The mounting frame (4) is arranged at the second test position and the second working position in the circuit breaker chamber, and the micro switch (3) is mounted on the mounting frame (4).

5. The switch cabinet according to claim 4, characterized in that: The installation frame (4) comprises: a second top plate (41) detachably mounted to the second test position and the second working position in the circuit breaker chamber; A back plate (42) is connected to the second top plate (41), and the micro switch (3) is installed on one side of the back plate (42); The first side plate (43) is connected between the second top plate (41) and the back plate (42).

6. The switch cabinet according to claim 5, characterized in that: Two first side plates (43) are arranged opposite to each other, and the micro switch (3) is located between the two first side plates (43).

7. The switch cabinet according to claim 5, characterized in that: The second top plate (41) includes N1 first mounting holes (411), the first top plate (11) includes M1 second mounting holes (111), M1 is an integer greater than N1, and the aligned first mounting holes (411) and the second mounting holes (111) are fixed by first bolts.

8. The switch cabinet according to any one of claims 1 to 7, characterized in that: The micro switch (3) includes a contact (31), and the switch cabinet further includes: An abutment member (5) is provided on the third top plate of the circuit breaker (2), and the circuit breaker (2) can drive the abutment member (5) to move synchronously so that the abutment member (5) abuts against the contact (31) located at the second test position and the second working position.

9. The switch cabinet according to claim 8, characterized in that: The abutment member (5) comprises: a connecting plate (51) detachably mounted on the third top plate; The second side plates (52) are arranged on opposite sides of the connecting plate (51), and the two second side plates (52) correspondingly abut against opposite sides of the circuit breaker (2).

10. The switch cabinet according to claim 9, characterized in that: The connecting plate (51) includes N2 third mounting holes (511), the third top plate includes M2 fourth mounting holes, M2 is an integer greater than N2, and the aligned third mounting holes (511) and the fourth mounting holes are fixed by second bolts.

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