Process optimization method and device for closing bounce performance of vacuum circuit breaker in C-GIS gas tank

Abstract

The invention discloses a process optimization method and device for the closing bounce performance of a vacuum circuit breaker in a C-GIS gas tank, and belongs to the technical field of power transmission and distribution equipment manufacturing of a power system. According to the process optimization method for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas tank, the deformation of an assembling area of a vacuum circuit breaker body is controlled, the assembling quality of an insulating pull rod is controlled, the assembling process quality of a vacuum arc-extinguishing chamber is controlled, the inspection quality in the assembling process is controlled, and the bounce time of the vacuum circuit breaker body is compared; by means of the steps of controlling the inspection quality in the assembling process, the switching-on bounce time of the vacuum circuit breaker body is within a specified range, so that the adverse effects on the vacuum circuit breaker and an electric power system are reduced, and the overall stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and distribution equipment manufacturing in a power system, and in particular to a process optimization method and device for the closing bounce performance of a vacuum circuit breaker in a C-GIS gas box. Background Art

[0002] Closing bounce is an important parameter of the mechanical characteristics of vacuum circuit breakers. It refers to the reciprocating phenomenon that the moving contact of the vacuum circuit breaker collides with the static contact and is pushed apart by the reaction force, then contacts again and is pushed apart again. This process stops within the allowed time range after several repeated movements.

[0003] The closing bounce time is the bounce process of the moving and static contacts during the closing process of the circuit breaker, which is the rebound separation caused by rigid collision, re-contact, and one or more damped oscillations before the final closing and static state. The time interval from the moving and static contacts just contacting to the stable contact is the closing bounce time. In terms of its own structural design and manufacturing process, the closing bounce time is affected by its own mechanical characteristics design features, closing speed, contact opening distance, component accuracy, assembly quality, transmission mechanism, contact spring pressure, overall stability and other factors.

[0004] At present, the assembly quality of the vacuum circuit breaker (the main body adopts a bare-bubble vacuum interrupter) of the 40.5kV gas-insulated switchgear (C-GIS) gas box is not high, and after the running-in test, there is a small contact opening distance during the closing bounce test of the vacuum circuit breaker. The arc will not be extinguished automatically, and the contact surface of the moving and static contacts will produce an extremely small melting point, causing the resistance of the conductive circuit to increase and exceed the specified value. Long-term load operation will cause the contact to heat up beyond the allowable value, which will affect the service life of the interrupter. If the timing is different or the bounce is large, this will seriously affect the overcurrent capacity of the vacuum circuit breaker and affect the life of the circuit breaker. The explosion of the circuit breaker may cause serious damage. Faults; if the closing bounce time is too short, the contact will have a larger bounce, resulting in unstable current output. If the closing bounce time is too long, it will cause the electrical wear of the contact to increase, thereby affecting the electrical life of the vacuum interrupter. Summary of the invention

[0005] In order to solve the problem that the closing bounce performance is unstable and multiple adjustments are required in the mechanical characteristics test of the vacuum circuit breaker body in the gas box of the gas insulated switchgear, the present invention provides a process optimization method and device for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas box.

[0006] The present invention adopts the following technical solution:

[0007] The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box includes: controlling the deformation of vacuum circuit breaker body: before assembly, measuring the deformation of vacuum circuit breaker body assembly area on gas box front plate, and detecting the deformation of three-phase vacuum interrupter installation position;

[0008] Control the quality of insulating rod assembly: compare the known parameters of the insulating rod with the parameters obtained by testing to judge the quality of the insulating rod;

[0009] Control the quality of vacuum interrupter assembly process: During the production of vacuum interrupter, adjust the position of the bellows and insulating pull rod in the vacuum interrupter so that the movement trajectory of the vacuum interrupter and the moving and static contacts are on the axis of the vacuum interrupter;

[0010] Control the inspection quality during the assembly process: including inspection items before and after the gas box running-in, and detection and analysis of the change in circuit contact resistance before and after the mechanical running-in test. When the resistance suddenly increases, the metal parts on the vacuum circuit breaker body are fatigued and aged;

[0011] Comparison of the bounce time of the vacuum circuit breaker body:

[0012] The offset is calculated according to the following formula:

[0013]

[0014] Where: τ is the bounce time obtained from this measurement, τ 预 is the preset standard bounce time, θ is the offset;

[0015] If θ is greater than the standard preset offset, it means that the test is unqualified, otherwise, it means that the test is qualified; perform m measurements, obtain the average value of m measurements τ, calculate the offset of the average value, if the offset of the average value is greater than the standard preset offset, it means that the vacuum circuit breaker body test is unqualified, otherwise, it means that the vacuum circuit breaker body is qualified.

[0016] According to the process optimization method for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas box, the deformation of the assembly area includes: the deformation of the lowest point assembly area and the deformation of the highest point assembly area; the deformation of the installation position includes: the deformation of the middle of the installation position and the diagonal within the area.

[0017] According to the process optimization method for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas box, when the assembly process quality of the vacuum interrupter is tested, it is ensured that the moving contact of the vacuum interrupter moves freely and the travel and action are not stuck.

[0018] According to the process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box, the control of the assembly quality of insulating pull rod specifically includes:

[0019] Detect and record the assembly information of each insulating pull rod;

[0020] Detect and record the initial pressure and final pressure of each insulating rod, determine whether the initial pressure and final pressure of the stroke meet the design requirements of the drawing, and check whether the pressure curve of the insulating rod is smooth. If the curve is smooth, it is considered qualified;

[0021] By sorting, counting, matching and selecting insulating pull rods with similar initial pressure and final pressure values, they are assembled and recorded.

[0022] According to the process optimization method for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas box, the control of the vacuum interrupter assembly process quality specifically includes:

[0023] Before assembling the vacuum interrupter, inspect the raw materials of the assembly parts to ensure that each component meets the requirements before assembly; after assembly, check whether the assembly dimensions of the vacuum interrupter meet the requirements;

[0024] When assembling the vacuum interrupter, ensure the concentricity of the assembly and make measurements;

[0025] After the vacuum interrupter is assembled, determine whether the three-phase vacuum interrupter is assembled consistently, measure whether the three-phase vacuum interrupter is level, and measure the gap between the horizontal line and the vacuum interrupter. If the above measurement results meet the standards, tighten the fasteners of the vacuum interrupter and mark them to prevent loosening;

[0026] Ensure that the overlapping surfaces of the copper busbars outlet from the vacuum interrupter chamber and the overlapping surfaces of the upper and lower connecting sleeves fit naturally when assembled, and mark the fasteners of the copper busbars outlet from the vacuum interrupter chamber with anti-loosening marks.

[0027] According to the process optimization method for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas box, the inspection quality control during the assembly process specifically includes:

[0028] Before the running-in test, check whether the vacuum interrupter and vacuum circuit breaker mechanism assembly fasteners are loose;

[0029] After the running-in test, check whether the vacuum interrupter and vacuum circuit breaker mechanism assembly fasteners and the outgoing line row are loose;

[0030] Check whether there are two closing springs on the vacuum circuit breaker mechanism and whether the diameter meets the design requirements;

[0031] Check the clearance between the upper crank arm and the shaft pin of the vacuum circuit breaker mechanism to determine whether it meets the design requirements;

[0032] After the vacuum circuit breaker mechanism is assembled, the overtravel and initial opening distance positions are marked on the insulating pull rod of the vacuum interrupter chamber for reference in subsequent adjustments.

[0033] According to the process optimization method for the closing bounce performance of the vacuum circuit breaker in the C-GIS gas box, the inspection quality during the assembly process is controlled:

[0034] If the closing bounce time of the mechanical characteristics of the vacuum circuit breaker body does not meet the requirements, the vacuum interrupter should be interchanged or replaced;

[0035] If the mechanical property test is qualified, the vacuum interrupter operating rod and the vacuum circuit breaker body fasteners are re-tightened and checked. If qualified, tightening and anti-loosening marks are drawn and thread glue is applied.

[0036] A vacuum circuit breaker device in a gas box of a gas insulated switch cabinet comprises: a gas box, a vacuum circuit breaker body is arranged inside the lower half of the gas box, one end of the vacuum circuit breaker body is fixed to the side wall of the gas box, the other end of the vacuum circuit breaker body is fixedly connected to a vacuum arc extinguishing chamber outlet copper bar, one side of the vacuum circuit breaker body is connected to upper and lower connecting sleeves, a gas box front plate is arranged on one side of the lower half of the gas box, a vacuum circuit breaker mechanism is fixedly arranged at a position corresponding to the vacuum circuit breaker body on the outside of the gas box, and the vacuum circuit breaker mechanism is connected to the vacuum circuit breaker body; the vacuum circuit breaker body comprises an insulating pull rod, one end of the insulating pull rod is connected to a bellows.

[0037] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the computer program is loaded into the processor, the process optimization method for the closing bounce performance of a vacuum circuit breaker in a C-GIS gas box is implemented.

[0038] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the process optimization method for the closing bounce performance of a vacuum circuit breaker in a C-GIS gas box is implemented.

[0039] Compared with the prior art, the beneficial effects of the present invention include at least:

[0040] By controlling the machining accuracy of parts and strengthening assembly process quality control and other process optimization solutions, the closing bounce time of the vacuum circuit breaker body can be kept within the specified range, thereby reducing the adverse effects on the vacuum circuit breaker and the power system and improving the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the gas box assembly of the gas insulated switchgear of this application;

[0042] Figure 2This is a schematic diagram of the vacuum interrupter assembly of the present application.

[0043] In the figure: 101, gas box; 102, gas box front plate; 103, vacuum circuit breaker body; 104, vacuum interrupter outlet copper bar; 105, upper and lower connecting sleeves; 106, vacuum circuit breaker mechanism; 201, insulating pull rod; 202, bellows. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0045] The following will be combined Figure 1-Figure 2 , clearly and completely describe the technical solution of the present invention.

[0046] Embodiment 1:

[0047] The present invention provides a process optimization method for closing bounce performance of a vacuum circuit breaker in a C-GIS gas box, comprising the following steps:

[0048] S1. Control the deformation of the vacuum circuit breaker body 103:

[0049] Before assembly, the deformation of the vacuum circuit breaker body 103 assembly area on the air box front plate 102 is measured, including the deformation of the lowest point and the highest point.

[0050] Detect the deformation of the three-phase vacuum interrupter installation position. The deformation of the installation position includes: the deformation of the middle of the installation position and the diagonal within the area. The measurement is not limited to the use of measuring tools or tooling mold positioning detection. The measuring tools can be rulers, feeler gauges, etc.

[0051] S2. Control the assembly quality of insulating pull rod 201:

[0052] The quality of the insulating pull rod is judged by comparing the parameters provided by the known insulating pull rod 201 with the parameters obtained by the test.

[0053] S21, detecting and recording the assembly information of each insulating pull rod 201, and the specification and quantity of the disc spring;

[0054] S22, detect and record the initial pressure of 0.5mm stroke and the final pressure of 5mm stroke of each insulating rod 201, determine whether the initial pressure of the stroke and the final pressure of the stroke meet the design requirements of the drawing, and check whether the pressure curve of the insulating rod 201 is smooth. If the curve is smooth, it is judged to be qualified;

[0055] S23, through sorting, counting, matching and selecting, the insulating pull rods 201 with similar initial pressure and final pressure values ​​are assembled and recorded.

[0056] S3. Control the quality of vacuum interrupter assembly process:

[0057] Check whether the assembly of the gas box 101 meets the production process requirements. During its production process, strictly follow the production procedures, do not let the vacuum arc chamber be subjected to external stress, and reasonably adjust the positions of the bellows 202 and the insulating pull rod 201 in the vacuum arc chamber so that the movement trajectory of the vacuum arc chamber and the moving contact and static contact are on the axis of the vacuum arc chamber. During the inspection, ensure that the moving contact of the vacuum arc chamber can move freely and the stroke and movement cannot be stuck.

[0058] S31. Before assembling the vacuum interrupter, inspect the raw materials of the assembly parts to ensure that each component meets the requirements before assembly; after assembly, use measuring tools or measuring fixtures to check whether the assembly dimensions of the vacuum interrupter meet the requirements of the drawings;

[0059] S32. The vacuum interrupter is assembled using a tooling set to control the concentricity of the assembly, and is tested using measuring tools or measuring tooling;

[0060] S33. After the vacuum interrupter is assembled, use measuring tools or measuring jigs to check whether the three-phase vacuum interrupter is assembled consistently. Measure whether the three-phase vacuum interrupter is level and the gap between the horizontal line and the vacuum interrupter. When the adjustment and assembly test are qualified, the fasteners of the vacuum interrupter should be locked and marked to prevent loosening.

[0061] S34. The vacuum interrupter is not subject to external stress, the overlapping surfaces of the outlet copper busbar 104 of the vacuum interrupter and the overlapping surfaces of the upper and lower connecting sleeves 105 are naturally matched when assembled, and the fasteners of the outlet copper busbar are marked with anti-loosening marks.

[0062] S4. Control the inspection quality during the assembly process: including inspection items before and after the air box running-in;

[0063] Before the mechanical running-in test review of the vacuum circuit breaker body 103 opening and closing, determine whether the assembly of the vacuum circuit breaker body 103 meets the production process requirements;

[0064] After the 103 opening and closing mechanical running-in test of the vacuum circuit breaker body, check whether the mechanism mounting nuts and conductive rod nuts are loose. If loose, tighten them immediately and mark them;

[0065] Analyze the change of circuit contact resistance before and after the mechanical running-in test. When the resistance suddenly increases, the metal parts on the vacuum circuit breaker body (103) are fatigued and aged;

[0066] If the assembly of the vacuum circuit breaker body 103 does not meet the production process requirements, the mechanical wear of the operating mechanism and fasteners after the mechanical running-in test is large, and the fatigue of the metal parts leads to a decrease in the pressure of the moving contact and the static contact, resulting in an increase in the circuit contact resistance;

[0067] S41. Before the running-in test, check whether the assembly fasteners of the vacuum interrupter and the vacuum circuit breaker mechanism 106 are loose;

[0068] S42. After the running-in test, check whether the assembly fasteners of the vacuum interrupter and the vacuum circuit breaker mechanism 106 and the outgoing line row are loose;

[0069] S43, check whether there are two closing springs on the vacuum circuit breaker mechanism 106 and whether the diameters meet the design requirements;

[0070] S44, check whether the clearance between the upper crank arm and the shaft pin of the vacuum circuit breaker mechanism 106 meets the design requirements;

[0071] S45, after the vacuum circuit breaker mechanism 106 is assembled, the overtravel and initial opening distance positions are marked on the insulating pull rod 201 of the vacuum interrupter chamber for reference in subsequent adjustments;

[0072] S5. Compare the bounce time of the vacuum circuit breaker body 103:

[0073] If the closing bounce time is too short, the contact will have a larger bounce, resulting in unstable current output. If the closing bounce time is too long, it will cause increased electrical wear of the contact, thereby affecting the electrical life of the vacuum interrupter. Therefore, the bounce time should be within a certain range to ensure the normal operation of the vacuum circuit breaker body 103. The offset is calculated according to the following formula:

[0074]

[0075] Where: τ is the bounce time obtained from this measurement, τ 预 is the preset standard bounce time, θ is the offset;

[0076] If θ is greater than the standard preset offset, it means that the test fails, otherwise, it means that the test passes.

[0077] Perform m measurements, obtain an average value of the m measurements τ, and calculate the offset of the average value. If the offset of the average value is greater than the standard preset offset, it means that the vacuum circuit breaker body 103 is unqualified. Otherwise, it means that the vacuum circuit breaker body 103 is qualified.

[0078] S6. Control the inspection quality during the assembly process:

[0079] After the above process optimization method is executed, if the closing bounce time of the mechanical characteristic of the vacuum circuit breaker body 103 does not meet the requirements, the vacuum interrupter is interchanged or replaced.

[0080] If the characteristic test is qualified, the vacuum interrupter operating rod and the fasteners of the vacuum circuit breaker body 103 shall be re-tightened, marked with tightening and anti-loosening marks, and thread glue shall be applied.

[0081] By implementing the above method, the closing bounce time of the vacuum circuit breaker body is within a specified range, thereby reducing adverse effects on the vacuum circuit breaker and the power system and improving overall stability.

[0082] Embodiment 2:

[0083] like Figure 1-2 As shown, the present invention also provides a vacuum circuit breaker device in a gas box of a gas insulated switch cabinet, comprising: a gas box 101, a vacuum circuit breaker body 103 is arranged inside the lower half of the gas box 101, one end of the vacuum circuit breaker body 103 is fixed to the side wall of the gas box 101, the other end of the vacuum circuit breaker body 103 is fixedly connected to a vacuum arc chamber outlet copper bus 104, one side of the vacuum circuit breaker body 103 is connected to upper and lower connecting sleeves 105, a gas box front plate 102 is arranged on one side of the lower half of the gas box 101, the vacuum circuit breaker body 103 is installed on the outer side of the gas box front plate 102, and the vacuum circuit breaker mechanism 106 is connected to the vacuum circuit breaker body 103.

[0084] The vacuum circuit breaker body 103 includes an insulating rod 201 , one end of which is connected to a bellows 202 .

[0085] Embodiment three:

[0086] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor.

[0087] Embodiment 4:

[0088] The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box, characterized by: include: S1. Controlling the deformation of the vacuum circuit breaker body (103): before assembly, measuring the deformation of the assembly area of ​​the vacuum circuit breaker body (103) on the gas box front plate (102), and detecting the deformation of the three-phase vacuum interrupter installation position; S2. Controlling the assembly quality of the insulating pull rod (201): comparing the known parameters of the insulating pull rod (201) with the parameters obtained by the test, and judging the quality of the insulating pull rod; S3. Control the quality of the vacuum interrupter assembly process: during the production of the vacuum interrupter, adjust the positions of the bellows (202) and the insulating pull rod (201) in the vacuum interrupter so that the movement trajectories of the vacuum interrupter, the moving contact, and the static contact are on the axis of the vacuum interrupter; S4. Controlling the inspection quality during the assembly process: including inspection items before and after the running-in of the gas box (101), and detecting and analyzing the change of the circuit contact resistance before and after the mechanical running-in test. When the resistance suddenly increases, the metal parts on the vacuum circuit breaker body (103) are fatigued and aged; S5. Compare the bounce time of the vacuum circuit breaker body (103): The offset is calculated according to the following formula: Where: τ is the bounce time obtained from this measurement, τ 预 is the preset standard bounce time, θ is the offset; If θ is greater than the standard preset offset, it means that the test is unqualified, otherwise, it means that the test is qualified; Perform m measurements, obtain an average value of the m measurements τ, and calculate an offset of the average value. If the offset of the average value is greater than a standard preset offset, it means that the vacuum circuit breaker body (103) fails the test; otherwise, it means that the vacuum circuit breaker body (103) passes.

2. The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box according to claim 1 is characterized in that: The deformation amount of the assembly area includes: the deformation amount of the lowest point assembly area and the deformation amount of the highest point assembly area; The deformation amount of the installation position includes: the deformation amount of the middle part of the installation position and the diagonal line in the area.

3. The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box according to claim 1 is characterized in that: When inspecting the quality of the vacuum interrupter assembly process, ensure that the moving contacts of the vacuum interrupter move freely and that the travel and movement are not stuck.

4. The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box according to claim 1 is characterized in that: Controlling the assembly quality of the insulating pull rod (201) specifically includes: S21, detecting and recording assembly information of each insulating pull rod (201); S22, detecting and recording the initial pressure and final pressure of the stroke of each insulating rod (201), judging whether the initial pressure and final pressure of the stroke meet the design requirements of the drawing, and checking whether the pressure curve of the insulating rod (201) is smooth, and judging that it is qualified if the curve is smooth; S23, by combing, counting, matching and selecting insulating pull rods (201) with similar initial pressure and final pressure values, assembling and recording them.

5. The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box according to claim 1 or 3, characterized in that: The control of vacuum interrupter assembly process quality specifically includes: S31. Before assembling the vacuum interrupter, inspect the raw materials of the assembly parts to ensure that each component meets the requirements before assembly; after assembly, check whether the assembly dimensions of the vacuum interrupter meet the requirements; S32. When assembling the vacuum interrupter, ensure the concentricity of the assembly and make measurements; S33. After the vacuum interrupter is assembled, determine whether the three-phase vacuum interrupter is assembled consistently, measure whether the three-phase vacuum interrupter is level, and measure the gap between the horizontal line and the vacuum interrupter. If the above measurement results meet the standards, tighten the fasteners of the vacuum interrupter and make anti-loosening marks. S34, ensuring that the overlapped surfaces of the vacuum interrupter outlet copper bar (104) and the overlapped surfaces of the upper and lower connecting sleeves (105) are naturally matched, and marking the fasteners of the vacuum interrupter outlet copper bar (104) with anti-loosening marks.

6. The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box according to claim 1 or 5, characterized in that: The inspection quality control during the assembly process specifically includes: S41. Before the running-in test, check whether the assembly fasteners of the vacuum interrupter and the vacuum circuit breaker mechanism (106) are loose; S42. After the running-in test, check whether the assembly fasteners of the vacuum interrupter and the vacuum circuit breaker mechanism (106) and the outlet line row are loose; S43, checking whether there are two closing springs on the vacuum circuit breaker mechanism (106) and whether the diameters meet the design requirements; S44, check the clearance between the upper crank arm and the shaft pin of the vacuum circuit breaker mechanism (106) to determine whether the design requirements are met; S45. After the vacuum circuit breaker mechanism (106) is assembled, the overtravel and initial opening distance positions are marked on the insulating pull rod (201) of the vacuum interrupter chamber for reference in subsequent adjustments.

7. The process optimization method for closing bounce performance of vacuum circuit breaker in C-GIS gas box according to claim 1 is characterized in that: S6. Control the inspection quality during the assembly process: If the closing bounce time of the mechanical characteristic of the vacuum circuit breaker body (103) does not meet the requirements, the vacuum interrupter is interchanged or replaced; If the mechanical property test is qualified, the fasteners of the vacuum interrupter operating rod and the vacuum circuit breaker body (103) are re-tightened and checked. If qualified, a tightening and anti-loosening mark is drawn and thread glue is applied.

8. A vacuum circuit breaker device in a gas-insulated switch cabinet gas box, characterized in that: include: A gas box (101) is provided, wherein a vacuum circuit breaker body (103) is arranged inside the lower half of the gas box (101), one end of the vacuum circuit breaker body (103) is fixed on the side wall of the gas box (101), the other end of the vacuum circuit breaker body (103) is fixedly connected to a vacuum arc extinguishing chamber outlet copper bar (104), one side of the vacuum circuit breaker body (103) is connected to upper and lower connecting sleeves (105), a gas box front plate (102) is arranged on one side of the lower half of the gas box (101), a vacuum circuit breaker mechanism (106) is fixedly arranged at a position corresponding to the vacuum circuit breaker body (103) outside the gas box (101), and the vacuum circuit breaker mechanism (106) is connected to the vacuum circuit breaker body (103); the vacuum circuit breaker body (103) comprises an insulating pull rod (201), one end of which is connected to a bellows (202).

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to claims 1-7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method as claimed in claims 1 to 7 are implemented.

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