Experimental system device and method for simulating real GIS three-station switch suspension potential

文档序号:6491 发布日期:2021-09-17 浏览:25次 中文

1. The utility model provides a simulate real GIS three-station switch suspension potential experimental system device, includes base member (11), its characterized in that: the device is characterized in that a three-station air cavity (1) is arranged in the base body (11), an operating device (3) is arranged at the right end of the base body (11), the operating device (3) is connected with a metal particle module (outermost) (4), an insulating residue module (middle) (5) and a particle layering module (innermost) (6), an electrode contactor (2) is arranged at the tail ends of the metal particle module (outermost) (4), the insulating residue module (middle) (5) and the particle layering module (innermost) (6), a pulse acquisition and BNC-N external interface (7) is arranged in the right end of the base body (11), a video monitor (8) is arranged on the right side of the upper end of the base body (11), a grounding electrode (9) is arranged on the left side of the lower end of the base body (11), a pressure monitor interface (10) is arranged on the left side of the upper end of the base body (11), and a handle (12) is arranged on the left side of the upper end of the base body (11), and the outer side of the handle (12) is provided with anti-skid threads (13), the left side of the upper end of the base body (11) is provided with a pressure gauge (14), the lower end of the pressure gauge (14) is provided with a pressure gauge threaded rod (15), the pressure gauge threaded rod (15) is connected in the pressure monitor interface (10), the lower end of the base body (11) is provided with a base (16), the lower end of the base (16) is provided with an adjustable support (17), the front surface of the base body (11) is provided with a swing leaf (18), the swing leaf (18) and a box door (19) form a rotating mechanism, the right side of the upper end of the base body (11) is provided with a cover door (20), the lower end of the cover door (20) is provided with a clamping block (21), the clamping block (21) and a clamping mechanism formed by a clamping block (23) in an inner hole (24), the clamping block (23) and a spring (22) form an elastic mechanism, and the upper end of the inner wall of the base body (11) is fixed with a lamp holder (25) through a first threaded rod (26), and lamp stand (25) and light (27) constitute rotary mechanism to base member (11) right side upper end is connected rotatory lid (28), and rotatory lid (28) and rotatory lid screw hole (29) constitute threaded connection, and rotatory lid (28) are fixing base (30) through second threaded rod (32), fixing base (30) and bracing piece (31) constitute rotary mechanism, and bracing piece (31) end connection surveillance camera head (33), the electrode contactor (2) outside is provided with fine setting screw thread (34), and base member (11) inside is provided with three station air cavity flange joints (35), and base member (11) upper end is provided with observation window (36).

2. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the base bodies (11) is 1, the size of the base bodies (11) is larger than that of the three-station air cavity (1), the base bodies (11) are wrapped by side-pulling copper nets, and finally the base bodies, the discharge cathodes and the shells are grounded to a total grounding electrode.

3. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the handles (12) is 2, the handles (12) are arranged in a left-right symmetrical mode relative to the center of the base body (11), and the length of each handle (12) is larger than that of the corresponding anti-skid thread (13).

4. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the pressure gauges (14) is 1, a pressure gauge threaded rod (15) at the lower end of the pressure gauge (14) is in threaded connection with the pressure monitor interface (10), and the diameter of the pressure gauge threaded rod (15) is smaller than that of the pressure monitor interface (10).

5. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the bases (16) is 1, the size of each base (16) is smaller than that of the base body (11), and the bases (16) are parallel to the horizontal direction.

6. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the adjustable supports (17) is 4, the adjustable supports (17) are symmetrically arranged front and back and left and right relative to the center of the base (16), and the height of each adjustable support (17) is larger than that of the base (16).

7. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the swinging leaves (18) is 1, the swinging leaves (18) and the box door (19) form a rotating mechanism, and the size of the box door (19) is smaller than that of the base body (11).

8. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the cover doors (20) is 3, the cover doors (20) can be opened in a rotating mode, and a clamping block (21) at the lower end of each cover door (20) and a stop block (23) form a clamping mechanism.

9. The experimental system device for simulating the suspended potential of the real GIS three-position switch according to claim 1, characterized in that: the number of the illuminating lamps (27) is 2, the illuminating lamps (27) are arranged in bilateral symmetry about the center of the base body (11), the illuminating lamps (27) and the lamp holder (25) form a rotating mechanism, the number of the rotating covers (28) is 1, the rotating covers (28) and rotating cover threaded holes (29) in the base body (11) form threaded connection, and the threaded diameter of the rotating covers (28) is smaller than that of the rotating cover threaded holes (29).

10. The experimental method for simulating the suspended potential of the real GIS three-position switch according to claims 1-9:

A. firstly, designing and manufacturing a suspension discharge test system capable of simulating a GIS three-station switch, wherein the system device is butted outside a section of specially designed GIS three-station switch back plate, the internal air cavity is at the normal pressure of 0.5MPa, three states of isolation brake opening, grounding and switch closing can be achieved by operating three stations through an external switch mechanism, and contact cut-in butt joint and operation impact under each state are realized;

B. opening a top plate of a top plate three-station air cavity, adding three adjustable suspended particle discharging components at a connecting piece, wherein the three adjustable suspended particle discharging components are respectively a metal particle suspended discharging module, an insulating residue suspended discharging module and a particle dust suspended discharging module, under a three-station closing state, guiding respective metal electrode contactors of the modules through an operating device, puncturing metal pieces to obtain electrode potentials, meanwhile, an operating device is provided with a miniature vibrating component in a matched mode, the miniature vibrating component is annularly arranged on a back plate of a closed barrel, vibration can be started according to actual load and running conditions, the dispersion state of suspended particles is simulated, and three different suspended particle modules realize generation of typical suspended discharge pulse energy;

C. the test system is in a video monitoring and signal acquisition 'dual-receiving mode', and the discharge process of the test system is monitored without dead angles;

in order to effectively overcome the interference of an electromagnetic field, a side-pulling copper mesh is adopted outside a cavity of the device system for wrapping, and finally the side-pulling copper mesh, the discharge cathode and the shell are grounded to a total grounding electrode.

Background

At present, in the field of electrical engineering, a GIS (enclosed gas insulated switchgear) three-position switch has the characteristics of compact structure, reliable connection and the like and is widely applied. The three-station switch is usually positioned in a closed air chamber at the side of an outgoing line and a bus, metal components in the area are numerous, the operating mechanisms are mutually associated and complex, the three-station switch is used as a connection center of an isolating switch and a quick grounding, the operation is frequent, the impact strength between metal link members is high, the friction is severe, metal particles are easy to generate, or the dust-free environment is damaged due to poor installation process, external dust enters, the metal particles and tiny dust are electrified under the action of an electric field, and the suspension and dispersion occur in a three-station air chamber, so that the defect of partial discharge is caused. According to statistics, the defects account for 38% of the GIS equipment failure rate in operation, and GIS partial discharge and even breakdown are caused in the three-position switch gas chamber. The project aims to provide the GIS three-position switch adjustable suspension discharge test system device and the method, which are used for researching and determining the characteristics of the defects for electric power scientific researchers to train practitioners to master the detection key points, and have important significance for timely discovering and processing the defects of suspension discharge in the closed gas chamber of the three-position switch in a production field. At present, a real GIS three-station switch suspension discharge test system device and a real GIS three-station switch suspension discharge test method can be simulated at home and abroad by establishing a solid GIS three-station model, opening a top plate, adding three adjustable suspension particle discharge components (metal particle, insulating residue and particle dust modules) at a connecting piece, matching a module with a miniature vibration module on a back plate of a closed barrel, opening vibration according to actual load and operation conditions, strengthening the dispersion state of simulated suspension particles, arranging a pulse acquisition device, outputting a discharge signal from inside to outside, monitoring the internal test progress by a 360-degree infrared camera, forming the GIS three-station switch suspension discharge test system device with 'internal and external linkage and double line for visual measurement', and completing the monitoring and management method of a closed loop test system. However, the GIS three-position switch adjustable suspension discharge test system device in the current market has many disadvantages, such as:

1. the GIS three-position switch adjustable suspension discharge test system device in the current market is inconvenient to maintain, and cannot be cleaned and maintained due to the fact that the structure of the GIS three-position switch adjustable suspension discharge test system device in the current market is defective, the structure is completely closed, and a mechanism capable of being opened and closed is lacked, so that the GIS three-position switch adjustable suspension discharge test system device in the current market is not practical;

2. suspension discharge's test system device with adjustable three station switches of GIS on the existing market is dampproofing not, do not possess the illumination function and be not convenient for observe, because there is the defect in the structure of suspension discharge's test system device with adjustable three station switches of GIS on the existing market, it lacks a mechanism that can be dampproofing, lead to the device bottom to meet water and be oxidized easily and corrode, and the device does not possess the illumination function, receive the environmental factor restriction easily, be not convenient for the experimenter to observe it, so suspension discharge's test system device with adjustable three station switches of GIS on the existing market is impractical.

Therefore, a real GIS three-position switch suspension potential simulation experiment system device and method are provided so as to solve the problems.

Disclosure of Invention

The invention aims to provide a system and a method for simulating a real GIS three-position switch suspension potential experiment, which are used for solving the problems of inconvenient maintenance, damp prevention, no lighting function and inconvenient observation in the current market in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a suspended potential experimental system device for simulating a real GIS three-station switch comprises a substrate, wherein a three-station air cavity is arranged in the substrate, an operating device is arranged at the right end of the substrate and is connected with a metal particle module (outermost), an insulating residue module (middle) and a particle layering module (innermost), electrode contactors are arranged at the tail ends of the metal particle module (outermost), the insulating residue module (middle) and the particle layering module (innermost), a pulse acquisition and BNC-N external interface is arranged in the right end of the substrate, a video monitor is arranged on the right side of the upper end of the substrate, a grounding electrode is arranged on the left side of the lower end of the substrate, a pressure monitor interface is arranged on the left side of the upper end of the substrate, a handle is arranged on the left side of the upper end of the substrate, anti-skid grains are arranged on the outer side of the handle, a pressure gauge is arranged on the left side of the upper end of the substrate, the lower end of the pressure gauge is provided with a pressure gauge threaded rod which is connected in a pressure monitor interface, the lower end of the base body is provided with a base, the lower end of the base is provided with an adjustable support, the front surface of the base body is provided with a swing leaf, the swing leaf and a box door form a rotating mechanism, the right side of the upper end of the base body is provided with a cover door, the lower end of the cover door is provided with a clamping block, the clamping block and a clamping block in an inner hole form a clamping mechanism, the clamping block and a spring form an elastic mechanism, the upper end of the inner wall of the base body is fixedly provided with a lamp holder through a first threaded rod, the lamp holder and an illuminating lamp form a rotating mechanism, the upper end of the right side of the base body is connected with a rotating cover, the rotating cover and a threaded hole of the rotating cover form a threaded connection, the rotating cover is fixedly provided with a fixed seat through a second threaded rod, the fixed seat and a supporting rod form a rotating mechanism, and the tail end of the supporting rod is connected with a monitoring camera, fine adjustment threads are arranged on the outer side of the electrode contactor, a three-station air cavity butt flange is arranged inside the base body, and an observation window is arranged at the upper end of the base body.

Preferably, the number of the basal bodies is 1, the size of the basal bodies is larger than that of the three-station air cavity, and the outer parts of the basal bodies are wrapped by side-pulling copper nets and finally grounded to the total grounding electrode together with the discharge cathode and the outer shell.

Preferably, the number of the handles is 2, the handles are symmetrically arranged on the left and right of the center of the base body, and the length of each handle is larger than that of the anti-skid lines.

Preferably, the number of the pressure meters is 1, a pressure meter threaded rod at the lower end of the pressure meter is in threaded connection with the pressure monitor interface, and the diameter of the pressure meter threaded rod is smaller than that of the pressure monitor interface.

Preferably, the number of the base is 1, the size of the base is smaller than that of the base, and the base is parallel to the horizontal direction.

Preferably, the number of the adjustable supports is 4, the adjustable supports are symmetrically arranged in front, back, left and right directions relative to the center of the base, and the height of each adjustable support is greater than that of the base.

Preferably, the number of the swinging leaves is 1, the swinging leaves and the box door form a rotating mechanism, and the size of the box door is smaller than that of the base body.

Preferably, the number of the cover doors is 3, the cover doors can be opened in a rotating mode, and the clamping blocks at the lower ends of the cover doors and the stop blocks form clamping mechanisms.

Preferably, the number of the illuminating lamps is 2, the illuminating lamps are arranged in bilateral symmetry around the center of the base body, the illuminating lamps and the lamp holder form a rotating mechanism, the number of the rotating covers is 1, the rotating covers and the rotating cover threaded holes in the base body form threaded connection, and the thread diameter of each rotating cover is smaller than that of the rotating cover threaded hole.

The experimental method for simulating the suspension potential of the real GIS three-station switch comprises the following steps:

A. firstly, designing and manufacturing a suspension discharge test system capable of simulating a GIS three-station switch, wherein the system device is butted outside a section of specially designed GIS three-station switch back plate, the internal air cavity is at the normal pressure of 0.5MPa, three states of isolation brake opening, grounding and switch closing can be achieved by operating three stations through an external switch mechanism, and contact cut-in butt joint and operation impact under each state are realized;

B. the method comprises the steps of opening a top plate of a top plate three-station air cavity, adding three adjustable suspended particle discharging components at a connecting piece, namely a metal particle suspended discharging module, an insulating residue suspended discharging module and a particle dust suspended discharging module, under a three-station closing state, guiding respective metal electrode contactors of the modules through an operating device, puncturing metal pieces to obtain electrode potentials, meanwhile, arranging a miniature vibrating component on an operating device in a matched mode, arranging the miniature vibrating component on a back plate of a closed barrel in a ring mode, opening vibration according to actual load and operation conditions, simulating the dispersion state of suspended particles, and realizing typical suspended discharge pulse energy generation by three different suspended particle modules.

C. The test system is in a video monitoring and signal acquisition 'double-receiving mode', and the discharge process of the test system is monitored without dead angles. In order to effectively overcome the interference of an electromagnetic field, a side-pulling copper mesh is adopted outside a cavity of the device system for wrapping, and finally the side-pulling copper mesh, the discharge cathode and the shell are grounded to a total grounding electrode.

Compared with the prior art, the invention has the beneficial effects that:

1. the experimental system device and the method for simulating the real GIS three-station switch suspension potential are provided with the pendulum page and the box door, so that the device is convenient to maintain and maintain, and the working principle is as follows: the box door is opened to clean and maintain the interior of the base body, and the box door is closed after maintenance is finished, so that the convenience is realized, and the practicability is increased;

2. the experimental system device and the method for simulating the real GIS three-station switch suspension potential are provided with a base, an adjustable support, fine adjustment threads, a lighting lamp and an observation window, so that the device has a moisture-proof function and is convenient to observe, and the working principle is as follows: the height of adjustable support of manual adjustment for ground is kept away from to the base, avoids the oxidation corrosion of ground water to base and base member, and inside the device base member was illuminated to the light, avoided the dim influence experimenter of light to observe, and the manual operation of being convenient for of fine setting screw thread has increased the practicality.

Drawings

FIG. 1 is a front view of a half-section structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of a partial top-down configuration of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 1 at C according to the present invention;

FIG. 8 is an enlarged view of the structure shown at D in FIG. 1 according to the present invention.

In the figure: 1. a three-station air cavity; 2. an electrode contactor; 3. an operating device; 4. metal particle modules (outermost); 5. insulation residue module (middle); 6. particulate stratification modules (innermost); 7. pulse acquisition and BNC-N external interface; 8. monitoring a video; 9. a ground electrode; 10. a pressure monitor interface; 11. a substrate; 12. a handle; 13. anti-skid lines; 14. a pressure gauge; 15. a pressure gauge threaded rod; 16. a base; 17. an adjustable support; 18. page turning; 19. a box door; 20. covering the door; 21. a clamping block; 22. a spring; 23. a stopper; 24. an inner bore; 25. a lamp socket; 26. a first threaded rod; 27. an illuminating lamp; 28. a rotating cover; 29. rotating the cover threaded hole; 30. a fixed seat; 31. a support bar; 32. a second threaded rod; 33. a surveillance camera; 34. fine adjustment of threads; 35. a three-station air cavity butting flange; 36. and (4) an observation window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a three-station switch suspension potential experimental system device for simulating a real GIS (geographic information System) comprises a three-station air cavity 1, an electrode contactor 2, an operation device 3, a metal particle module (outermost) 4, an insulating residue module (middle) 5, a particle layering module (innermost) 6, a pulse acquisition and BNC-N external interface 7, a video monitor 8, a grounding electrode 9, a pressure monitor interface 10, a base body 11, a handle 12, an anti-skid thread 13, a pressure gauge 14, a pressure gauge threaded rod 15, a base 16, an adjustable support 17, a swinging page 18, a box door 19, a cover door 20, a clamping block 21, a spring 22, a clamping block 23, an inner hole 24, a lamp holder 25, a first threaded rod 26, an illuminating lamp 27, a rotary cover 28, a rotary cover threaded hole 29, a fixed seat 30, a supporting rod 31, a second threaded rod 32, a monitoring camera 33, a fine tuning thread 34, a three-station air cavity butt flange 35 and an observation window 36, wherein the three-station air cavity 1 is arranged in the base body 11, the right end of the substrate 11 is provided with an operating device 3, the operating device 3 is connected with the outermost 4 of the metal particle module, the middle 5 of the insulating residue module and the innermost 6 of the particle layering module, the tail ends of the outermost 4 of the metal particle module, the middle 5 of the insulating residue module and the innermost 6 of the particle layering module are provided with electrode contactors 2, the inside of the right end of the substrate 11 is provided with a pulse acquisition and BNC-N external interface 7, the right side of the upper end of the substrate 11 is provided with a video monitor 8, the left side of the lower end of the substrate 11 is provided with a grounding electrode 9, the left side of the upper end of the substrate 11 is provided with a pressure monitor interface 10, the left side of the upper end of the substrate 11 is provided with a handle 12, the outer side of the handle 12 is provided with anti-skid threads 13, the left side of the upper end of the substrate 11 is provided with a pressure gauge 14, the lower end of the pressure gauge 14 is provided with a threaded rod 15, and the pressure gauge threaded rod 15 is connected in the pressure monitor interface 10, the lower end of the base body 11 is provided with a base 16, the lower end of the base 16 is provided with an adjustable support 17, the front surface of the base body 11 is provided with a swinging page 18, the swinging page 18 and a box door 19 form a rotating mechanism, the right side of the upper end of the base body 11 is provided with a cover door 20, the lower end of the cover door 20 is provided with a fixture block 21, the fixture block 21 and a stopper 23 in an inner hole 24 form a clamping mechanism, the stopper 23 and a spring 22 form an elastic mechanism, the upper end of the inner wall of the base body 11 is fixedly provided with a lamp holder 25 through a first threaded rod 26, the lamp holder 25 and an illuminating lamp 27 form a rotating mechanism, the upper end of the right side of the base body 11 is connected with a rotating cover 28, the rotating cover 28 and a rotating cover threaded hole 29 form a threaded connection, the rotating cover 28 is fixedly provided with a fixed seat 30 through a second threaded rod 32, the fixed seat 30 and a supporting rod 31 form a rotating mechanism, the tail end of the supporting rod 31 is connected with a monitoring camera 33, and the outer side of the electrode contactor 2 is provided with a fine-adjusting thread 34, and a three-station air cavity butting flange 35 is arranged inside the base body 11, and an observation window 36 is arranged at the upper end of the base body 11.

Base member 11 has 1, and the size of base member 11 is greater than three station air cavity 1's size to the outside of base member 11 adopts the side to draw the copper mesh for the parcel, finally with discharge cathode, shell altogether to total earthing pole, guarantee that three station air cavities 1 can put into base member 11 in, make the device rational in infrastructure stable, increased the practicality.

The number of the handles 12 is 2, the handles 12 are arranged in bilateral symmetry about the center of the base body 11, and the length of the handles 12 is larger than that of the anti-skid grains 13, so that the handles 12 can stably support the base body 11, the stress of the device is uniformly balanced, and the practicability is improved.

The pressure gauge 14 has 1, and the pressure gauge threaded rod 15 and the pressure monitor interface 10 of pressure gauge 14 lower extreme constitute threaded connection to the diameter of pressure gauge threaded rod 15 is less than the diameter of pressure monitor interface 10, guarantees that the pressure gauge threaded rod 15 of pressure gauge 14 lower extreme can inject pressure monitor interface 10, makes the device rational in infrastructure stable, has increased the practicality.

The number of the bases 16 is 1, the size of each base 16 is smaller than that of the corresponding base 11, and the bases 16 are parallel to the horizontal direction, so that the bases 16 can stably support the base 11, the device is enabled not to incline and shake, and practicability is improved.

Adjustable support 17 has 4, and adjustable support 17 is around the center bilateral symmetry setting of base 16 to adjustable support 17's height is greater than base 16's height, guarantees that adjustable support 17 can support base 16 steadily, makes the device atress evenly balanced, has increased the practicality.

The number of the swinging leaves 18 is 1, the swinging leaves 18 and the box door 19 form a rotating mechanism, and the size of the box door 19 is smaller than that of the base body 11, so that the box door 19 can be normally opened and closed, the structure of the device is reasonable and stable, and the practicability is improved.

The cover door 20 has 3, and the cover door 20 can be rotated and opened to the fixture block 21 and the dog 23 of cover door 20 lower extreme constitute block mechanism, guarantee that the cover door 20 can normally open and close, make the device rational in infrastructure stable, increased the practicality.

The number of the illuminating lamps 27 is 2, the illuminating lamps 27 are arranged in bilateral symmetry about the center of the base body 11, the illuminating lamps 27 and the lamp holder 25 form a rotating mechanism, the number of the rotating covers 28 is 1, the rotating covers 28 and the rotating cover threaded holes 29 in the base body 11 form threaded connection, the threaded diameter of each rotating cover 28 is smaller than that of each rotating cover threaded hole 29, the rotating covers 28 can be inserted into the rotating cover threaded holes 29, the structure of the device is reasonable and stable, and the practicability is improved.

The experimental method for simulating the suspension potential of the real GIS three-station switch comprises the following steps:

A. firstly, designing and manufacturing a suspension discharge test system capable of simulating a GIS three-station switch, wherein the system device is butted outside a section of specially designed GIS three-station switch back plate, the internal air cavity is at the normal pressure of 0.5MPa, three states of isolation brake opening, grounding and switch closing can be achieved by operating three stations through an external switch mechanism, and contact cut-in butt joint and operation impact under each state are realized;

B. the method comprises the steps of opening a top plate of a top plate three-station air cavity, adding three adjustable suspended particle discharging components at a connecting piece, namely a metal particle suspended discharging module, an insulating residue suspended discharging module and a particle dust suspended discharging module, under a three-station closing state, guiding respective metal electrode contactors of the modules through an operating device, puncturing metal pieces to obtain electrode potentials, meanwhile, arranging a miniature vibrating component on an operating device in a matched mode, arranging the miniature vibrating component on a back plate of a closed barrel in a ring mode, opening vibration according to actual load and operation conditions, simulating the dispersion state of suspended particles, and realizing typical suspended discharge pulse energy generation by three different suspended particle modules.

C. The test system is in a video monitoring and signal acquisition 'double-receiving mode', and the discharge process of the test system is monitored without dead angles. In order to effectively overcome the interference of an electromagnetic field, a side-pulling copper mesh is adopted outside a cavity of the device system for wrapping, and finally the side-pulling copper mesh, the discharge cathode and the shell are grounded to a total grounding electrode.

The working principle is as follows: when the experimental system and the method for simulating the real GIS three-station switch suspension potential are used, firstly, the anti-skid veins 13 outside the handle 12 are held by hands to move the device to a destination, then the height of the adjustable support 17 at the lower part of the base 16 at the lower end of the substrate 11 is manually adjusted to enable the base 16 to be far away from the ground, so that the oxidation corrosion of the base 16 and the substrate 11 by ground water is avoided, then the lighting lamp 27 in the substrate 11 is started to light the inside of the substrate 11 of the device, the observation of an experimenter is prevented from being influenced by dim light, the three stations are operated in a closing state, the electrode contactor 2 is controlled by the operating device 3 to obtain the high potential in the operating state on a three-station drainage metal part, and under the action of the high voltage, the electrode contactors 2 of the metal particle module (outermost) 4, the insulating residue module (middle) 5 and the particle layering module (innermost) 6 can be operated simultaneously or respectively, meanwhile, the operating device 3 controls the external annular micro-vibration module to cause suspension dispersion, the suspension dispersion is closer to the suspension characteristic in the running state, single or overlapped suspension discharge pulses are sent out, the pulse acquisition and the BNC-N external interface 7 send out discharge signals, further analysis is obtained, the video monitor 8 effectively observes the internal arc or corona discharge condition, the power supply is cut off and the box door 19 is opened after the use is finished, the interior of the base body 11 is cleaned and maintained, and the box door 19 is closed after the maintenance is finished, so that a series of work is completed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

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