Switchgear Discharge Testing Device

Abstract

The present application discloses a discharge test device for a switch cabinet, belonging to the field of power systems. The discharge test device for the switch cabinet includes a cabinet body, two insulators, two wiring structures, and a simulation component; the insulators are located in the cabinet body, and one end is electrically connected to one end of the wiring structure. The wiring structure is installed on the cabinet body, with one end located inside the cabinet and the other end located outside the cabinet; the simulation component includes a temperature regulator and a humidity regulator located in the cabinet body. It solves the problem that the detection results of the discharge test device for the switch cabinet in the related art are relatively single, and achieves the effect of improving the comprehensiveness of the detection results.

Description

Technical Field

[0001] The present application relates to the field of power systems, and in particular to a switch cabinet discharge test device. Background Art

[0002] Switchgear is a type of electrical equipment that switches, controls, and protects electrical equipment during power generation, transmission, distribution, and conversion in power systems. During switchgear operation, insulation materials are subject to various factors, including high temperature, high pressure, oil, chemicals, and vibration. This deteriorates insulation performance and accelerates discharge, which in turn further deteriorates insulation. In severe cases, system voltage fluctuations can cause insulation breakdown, leading to line shorts and power outages. Therefore, timely monitoring of discharge status within switchgear can effectively prevent failures.

[0003] A switch cabinet discharge test device in the related technology includes a ground wave detector. The probe of the ground wave detector is set on the outer surface of the switch cabinet in the working state. When local discharge occurs in the insulation layer of the high-voltage switch cabinet, electromagnetic waves are generated. The electromagnetic waves propagate along the metal surface of the switch cabinet. When the electromagnetic waves propagate to the metal surface, the wave front will generate a transient voltage to the ground. A capacitive probe can be coupled to the signal. By analyzing the signal, the discharge condition of the switch cabinet can be judged.

[0004] However, the above-mentioned switch cabinet discharge detection device can only determine whether a discharge phenomenon has occurred in the switch cabinet through electromagnetic waves during the operation of the switch cabinet, and the detection result is relatively simple. Summary of the Invention

[0005] The present invention provides a switch cabinet discharge test device. The technical solution is as follows:

[0006] In one aspect, a switch cabinet discharge test device is provided, the switch cabinet discharge test device comprising a cabinet body, two insulators, two wiring structures, and a simulation component;

[0007] The insulator is located in the cabinet, and one end of the insulator is electrically connected to one end of the wiring structure. The wiring structure is installed on the cabinet, and one end of the insulator is located inside the cabinet and the other end of the wiring structure is located outside the cabinet.

[0008] The simulation components include a temperature regulator and a humidity regulator located in the cabinet.

[0009] Optionally, the switch cabinet discharge testing device further includes an insulating partition, and the insulating partition is located between the two insulators.

[0010] Optionally, the switchgear discharge test device further includes a base, the other end of the insulator is installed on the base, and the insulating partition is installed on the base.

[0011] Optionally, the base includes a slide rail, and the length direction of the slide rail is parallel to the arrangement direction of the two wiring structures;

[0012] The other end of the insulator is installed on the slide rail.

[0013] Optionally, the insulating partition is installed on the slide rail, and the plane of the insulating partition is perpendicular to the connection line of the two insulators.

[0014] Optionally, the temperature regulator includes a heating wire, the heating wire is located at a position on the first inner wall of the cabinet near the bottom of the cabinet, and the wiring structure is located on the first inner wall.

[0015] Optionally, the humidity regulator includes a humidifying pipe, the humidifying pipe is located at a position on the first inner wall of the cabinet near the top of the cabinet, the humidifying pipe has a plurality of openings arranged along the length direction, and one end of the humidifying pipe passes through the cabinet and is configured to be connected to an external humidifying device.

[0016] Optionally, the cabinet is in a cuboid shape, a side of the cabinet opposite to the first inner wall has a cabinet door, and the cabinet door has a viewing window.

[0017] Optionally, the switchgear discharge test device further includes a humidity controller and a temperature controller installed on the cabinet door, the humidity controller is electrically connected to the humidity regulator, and the temperature controller is electrically connected to the temperature regulator.

[0018] Optionally, the switchgear discharge test device further includes a voltage regulator installed on the cabinet door, and the voltage regulator is used to adjust the voltage applied to the connection structure.

[0019] The technical solution provided by the embodiment of the present application may include the following beneficial effects:

[0020] A switchgear discharge test device including a cabinet, two insulators, two wiring structures, and a simulation component is provided. One end of each of the two wiring structures is electrically connected to one of the two insulators, and the other ends of the two wiring structures outside the cabinet can be connected to external cables to transmit voltage to the wiring structures. In this way, the temperature and humidity inside the cabinet can be changed by adjusting the temperature regulator and humidity regulator in the simulation component, and the discharge conditions of the two wiring structures inside the cabinet under different temperature and humidity environments and different voltages can be obtained. This solves the problem that the detection results of the switchgear discharge test device in the related art are relatively single, and achieves the effect of improving the comprehensiveness of the detection results. Brief Description of the Drawings

[0021] The drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0022] Figure 1 It is a schematic structural diagram of a switch cabinet discharge test device provided by an embodiment of the present application;

[0023] Figure 2 It is a schematic structural diagram of another switch cabinet discharge test device provided by an embodiment of the present application;

[0024] Figure 3 is Figure 2 the rear view of the switch cabinet discharge test device in

[0025] Figure 4 is Figure 2 the front view of the switch cabinet discharge test device in.

[0026] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0027] To make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the drawings.

[0028] In a substation, multiple switch cabinets are usually installed. After the switch cabinet starts to operate, the cabinet body is in a sealed state. Aging and damage of the insulating materials inside the switch cabinet may be caused by various factors such as temperature, humidity, and pollution. In the insulation system of the switch cabinet, there are differences in the electric field strength at different positions. Once the electric field strength in a certain area reaches its breakdown field strength, discharge phenomena will occur in that area, and the discharge will damage the insulating materials. The combined effect of the above two situations will accelerate the deterioration of the insulating materials, resulting in insulation breakdown accidents during voltage fluctuations.

[0029] Since the switchgear is in a sealed state after operation, when multiple switchgears operate together, it is cumbersome to stop the operation to check the discharge situation inside the switchgear, which affects power supply. The switchgear discharge detection device in the related art can only judge the current discharge situation according to electromagnetic waves after the switchgear has generated a discharge phenomenon. However, most of this electromagnetic wave will be shielded by the metal shell of the switchgear, and only a small part of the electromagnetic wave can be detected by the ground wave detector. Therefore, the switchgear discharge detection device in the related art can only analyze from the monitoring results that the switchgear has generated a discharge phenomenon, and cannot judge the cause of the discharge phenomenon. The detection result is relatively single, and accurate switchgear discharge treatment measures cannot be obtained on this basis.

[0030] The embodiment of the present application provides a switchgear discharge test device, which can solve the problems existing in the above-mentioned related art.

[0031] Figure 1 It is a structural schematic diagram of a switchgear discharge test device provided by the embodiment of the present application.

[0032] The switchgear discharge test device 10 includes a cabinet 11, two insulators 12, two wiring structures 13 and a simulation component 14.

[0033] The insulator 12 is located in the cabinet 11, and one end is electrically connected to one end of the wiring structure 13. The wiring structure 13 is installed on the cabinet 11, with one end inside the cabinet 11 and the other end outside the cabinet 11.

[0034] The simulation component 14 includes a temperature regulator 141 and a humidity regulator 142 located in the cabinet.

[0035] In summary, the embodiment of the present application provides a switchgear discharge test device including a cabinet, two insulators, two wiring structures and a simulation component. One end of the two wiring structures is electrically connected to the two insulators respectively, and the other ends of the two wiring structures outside the cabinet can be connected to external cables to transmit voltage to the wiring structures. In this way, the temperature and humidity inside the cabinet can be changed by adjusting the temperature regulator and humidity regulator in the simulation component, and the discharge situation of the two wiring structures inside the cabinet under different temperature and humidity environments and different voltages can be obtained. It solves the problem that the detection result of the switchgear discharge test device in the related art is relatively single, and achieves the effect of improving the comprehensiveness of the detection result.

[0036] Optionally, the switchgear discharge test device further includes an insulating partition located between the two insulators.

[0037] Optionally, the switchgear discharge test device further includes a base, the other end of the insulator is installed on the base, and the insulating partition is installed on the base.

[0038] Optionally, the base includes a slide rail, and the length direction of the slide rail is parallel to the arrangement direction of the two wiring structures;

[0039] The other end of the insulator is mounted on the slide rail.

[0040] Optionally, the insulating partition is mounted on the slide rail, and the plate surface of the insulating partition is perpendicular to the connection line of the two insulators.

[0041] Optionally, the temperature regulator includes a heating wire, the heating wire is located at a position on the first inner wall of the cabinet body close to the bottom of the cabinet body, and the wiring structure is located on the first inner wall.

[0042] Optionally, the humidity regulator includes a humidifying pipe, the humidifying pipe is located at a position on the first inner wall of the cabinet body close to the top of the cabinet body, the humidifying pipe is provided with a plurality of openings arranged along the length direction, and one end of the humidifying pipe passes through the cabinet body and is configured to be connected to an external humidifying device.

[0043] Optionally, the cabinet body is in a cuboid shape, a cabinet door is provided on the surface of the cabinet body opposite to the first inner wall, and a viewing window is provided on the cabinet door.

[0044] Optionally, the switch cabinet discharge test device further includes a humidity controller and a temperature controller mounted on the cabinet door, the humidity controller is electrically connected to the humidity regulator, and the temperature controller is electrically connected to the temperature regulator.

[0045] Optionally, the switch cabinet discharge test device further includes a voltage regulator mounted on the cabinet door, and the voltage regulator is used to adjust the voltage applied to the connection structure.

[0046] Please refer to Figure 2 , which shows a schematic structural diagram of another switch cabinet discharge test device provided by an embodiment of the present application. Figure 3 For Figure 2 the rear view of the switch cabinet discharge test device in

[0047] The wiring structure 13 may include two wiring cylinders 131 located on the cabinet body 11 and electric connection wires 132 respectively located in the two wiring cylinders 131. The electric connection wires in the embodiments of the present application may be busbars or bus lines. Since the switch cabinet discharge test device in the present application is used to detect the discharge situation in the switch cabinet, and the connection wires between the inside and the outside of the switch cabinet are usually busbars or bus lines. A bus line is a kind of wire without a protection device and without an insulating layer. The bus line can play a role in overall system control. The main principle of the bus line is branching. A busbar is the node of all bus line branches. The busbar can control all switch cabinets and can also play a role in connecting the conductors between transformers. The wiring structure in the present application can select to set the inside of the wiring cylinder as a busbar or a bus line according to the connection state of different switch cabinets detected. The embodiments of the present application do not make any limitations here.

[0048] The wiring barrel 131 is installed on the cabinet 11, with one end located inside the cabinet 11 and the other end located outside the cabinet 11. Two electrical connecting wires 132 pass through the wiring barrel 131 respectively, and one end of the two electrical connecting wires 132 is respectively connected to the two insulators 12 located inside the cabinet 11. The other end of one of the two electrical connecting wires 132 is grounded, and the other of the two electrical connecting wires 132 is connected to an external voltage device. In order to more accurately simulate the situation of the switch cabinet, the external voltage device electrically connected to the wiring structure in this application can be a voltage transformer. A voltage transformer is an instrument that can transform the voltage on a line and is mostly used in power transmission and power supply systems such as power plants and substations. Among the multiple switch cabinets in the substation, at least one switch cabinet connected to a voltage transformer is included. By transmitting different voltages to the wiring structure through the voltage transformer, the discharge situation of the switch cabinet under different voltages can be tested. This increases the comprehensiveness of the discharge phenomenon test.

[0049] Insulators are insulating components that firmly support and secure current-carrying conductors. They insulate current-carrying conductors from the ground or provide good insulation between current-carrying conductors at different points within the device. Therefore, they are essential components in switchgear. To better simulate the discharge environment within a switchgear, the switchgear discharge test device of this application connects a wiring structure 13 to an insulator 12 to simulate the connection conditions within the switchgear.

[0050] When a switch cabinet to be tested is tested using the switch cabinet discharge test device provided by the embodiment of the present application, the insulator and the insulator in the switch cabinet to be tested can be the same insulator to improve the accuracy of the test.

[0051] Optionally, the switch cabinet discharge test device 10 further includes an insulating partition 15, which is located between the two insulators 12. The insulating partition 15 has a large area and can separate the two insulators 12 and the two wiring structures 13 electrically connected to the two insulators 12, so that the wiring structure 13 connected to the external voltage device will not affect the external grounding wiring structure when discharging. The insulating partition 15 can be made of resin material or other insulating materials, which is not limited in the embodiment of the present application. When performing a discharge test through the switch cabinet discharge test device, the destructive force of the current discharge can be judged by the damage on the insulating partition 15, and the damage to the insulating material in the switch cabinet can be judged based on the damage on the insulating partition 15.

[0052] Optionally, the switchgear discharge test device 10 further includes a base 16, to which the other end of the insulator 12 is mounted, and the insulating partition 15 is mounted. The base 16 can be fixedly connected to the bottom of the cabinet 11. One end of the insulating partition 15 is mounted on the base 16, and the other end can be parallel to the height of the wiring structure 13. One end of each of the two insulators 12 can also be connected to the base 16.

[0053] Optionally, the base 16 includes a slide rail 161, the length of which is parallel to the arrangement direction of the two wiring structures 13. The other end of the insulator 12 is mounted on the slide rail 161. The other end of the insulator 12 can slide on the slide rail 161. The sliding of the insulator 12 changes the relative position between the insulator 12 and the insulating partition 15, thereby changing the relative position between the wiring structure 13 and the insulating partition 15. The damage to the insulating partition 15 caused by discharge from the wiring structure 13 at different relative positions can be determined, thereby determining the damage to the insulating material at different locations in the switchgear.

[0054] For example, when a switch cabinet to be tested is tested using the switch cabinet discharge test device provided in an embodiment of the present application, the distance between the two insulators in the switch cabinet discharge test device can be adjusted to be equal to the distance between the two insulators in the switch cabinet to be tested to improve the accuracy of the test.

[0055] Optionally, the insulating partition 15 is mounted on the slide rail 161, and the surface of the insulating partition 15 is perpendicular to the line connecting the two insulators 12. The insulating partition 15 can also be moved on the slide rail 161, thereby changing the relative position of the insulating partition 15 and the wiring structure 13. The insulating partition 15 and the slide rail 161 are detachably connected. In one test method, the insulating partition 15 can be removed, and the electrical connection wires 132 in the two wiring structures 13 can be wrapped with insulating material. After connecting to an external voltage device, different voltages, different temperatures and humidity are changed to obtain the insulation conditions of the insulating material under different environments and voltages. Different insulating materials can also be used to carry out the above experiment to obtain the insulation properties of different insulating materials, as well as the insulating material with the best insulation performance under the current environment in which the switch cabinet is located.

[0056] Optionally, the temperature regulator 141 includes a heating wire located at a position on the first inner wall 111 of the cabinet body 11 close to the bottom of the cabinet body 11, and the wiring structure 13 is located on the first inner wall 111. The switch cabinet is usually placed in the field environment, and the temperature difference in different seasons in the field environment is relatively large. In order to more comprehensively detect the discharge phenomenon of the switch cabinet, a temperature regulator 141 is provided inside the cabinet body in the embodiment of the present application. The temperature regulator 141 can adjust different temperatures to make the temperature inside the cabinet body 11 the same as that inside the switch cabinet. Or when testing the insulation performance of the insulating material, the temperature inside the cabinet can be made different through the temperature regulator 141, and the difference between the lowest temperature and the highest temperature can be relatively large, so as to obtain the insulation performance of the insulating material at different temperatures.

[0057] The temperature regulator 141 can be an electric furnace. The electric furnace can convert the electric energy in the furnace into heat. By electrically connecting the electric furnace, the inside of the cabinet can be heated. Moreover, the heating speed of the electric furnace is fast and the heating temperature is high, so that the temperature detection range of the switch cabinet discharge test device can be increased, and the detection comprehensiveness of the switch cabinet discharge test device can be increased. The temperature regulator 141 can also be other devices that can adjust the temperature, and the embodiment of the present application does not limit this here. In addition, in order to prevent damage to the temperature regulator 141 when the wiring structure 13 discharges, the temperature regulator 141 can be arranged at a position on the first inner wall 111 close to the bottom of the cabinet body 11 to avoid the influence of the wiring structure 13 on the temperature regulator 141. The temperature regulator 141 can also be arranged on other inner walls of the cabinet body, and the specific position of the temperature regulator 141 is not limited in the embodiment of the present application.

[0058] Optionally, the humidity regulator includes a humidifying pipe 1421 located at a position on the first inner wall 111 of the cabinet body 11 close to the top of the cabinet body. The humidifying pipe 1421 has a plurality of openings arranged along the length direction. One end of the humidifying pipe 1421 passes through the cabinet body 11 and is configured to be connected to an external humidifying device. The length of the humidifying pipe 1421 located inside the cabinet body is not limited. The plurality of openings of the humidifying pipe 1421 located inside the cabinet body can make the injected moisture more uniform, or only one opening can be provided to inject moisture into the cabinet body. The number of openings and the angle of the openings are not limited in the embodiment of the present application. The humidifying pipe 1421 can also be located on other inner walls of the cabinet body, and the specific position of the humidifying pipe 1421 is not limited in the embodiment of the present application. In addition, the specific specifications and models of the external humidifying device are not limited in the implementation of the present application. After the external humidifying device is turned on, the moisture enters the inside of the cabinet body through the humidifying pipe 1421. The greater the injection amount of the moisture, the higher the humidity inside the cabinet body. When injecting moisture into the cabinet body, the temperature regulator 141 can be turned on. The temperature regulator 141 can perform heat circulation on the moisture inside the cabinet body to make the moisture inside the cabinet body more evenly distributed, so as to more accurately simulate the internal environment of the switch cabinet.

[0059] Figure 4 The Figure 2 front view of the switch cabinet discharge test device in

[0060] Optionally, the cabinet body 11 is in the shape of a cuboid. One side of the cabinet body 11 opposite to the first inner wall is provided with a cabinet door 112, and the cabinet door 112 is provided with a viewing window 17. Since slide rails are arranged at the bottom of the cabinet body 11, and both the insulating partition and the insulator can move on the slide rails, when the cabinet body 11 is in the shape of a cuboid, the track length of the slide rails is longer, and the moving range of the insulating partition and the insulator increases, so that the research range of the discharge conditions of the insulating partition and the insulator and the wiring structure at different distances is wider, thereby increasing the comprehensiveness of the detection of the switch cabinet simulation detection device.

[0061] The cabinet door 112 includes a viewing window 17, and the viewing window 17 is a transparent observation window. Operators can observe the discharge phenomenon inside the cabinet body and the damage condition of the current insulating partition or insulating material in real time through the viewing window 17. Thus, operators can more accurately observe the discharge process and the growth relationship between the discharge amount and the damage degree of the insulating material. The viewing window 17 can be arranged at a position on the cabinet door 112 opposite to the wiring structure on the first inner wall, and the specific size of the viewing window 17 is not limited in this embodiment of the present application. In addition, the cabinet door 112 can be two relatively arranged doors, or can be other forms of cabinet doors such as sliding doors, which are not limited in this embodiment of the present application.

[0062] Optionally, the switch cabinet discharge test device 10 further includes a humidity controller 181 and a temperature controller 182 installed on the cabinet door 112. The humidity controller 181 is electrically connected to the humidity regulator, and the temperature controller 182 is electrically connected to the temperature regulator. The temperature controller 182 can control the opening and closing of the temperature regulator, and can also control the temperature of the temperature regulator through the temperature controller 182.

[0063] The humidity controller 181 can control the opening and closing of the humidity regulator, and can also control the injection amount of the moisture injected into the cabinet body by the humidity regulator through the humidity controller 181. The moisture in the cabinet body is input through a humidifying device located outside the cabinet body. If the injection amount of the moisture is controlled by the adjusting component of the external humidifying device, the operator needs to walk to the vicinity of the external humidifying device for operation. During the operation process, the operator cannot observe the internal situation of the cabinet body at the same time. If one operator observes the internal situation of the cabinet body and another operator operates the external humidifying device, the humidifying operation will be more cumbersome and labor-consuming. In this embodiment of the present application, the humidity controller 181 is simultaneously arranged on the cabinet door of the switch cabinet discharge test device, so that the operator can operate the injection amount of the moisture while observing the internal situation of the cabinet body, and one operator can complete it, which simplifies the operation process and saves labor at the same time.

[0064] Optionally, the switchgear discharge test device 10 further includes a humidity display 183 and a temperature display 184 installed on the cabinet door 112. The humidity display 183 includes a hygrometer located inside the cabinet door and a humidity display screen located outside the cabinet door. The temperature display 184 includes a thermometer located inside the cabinet door and a temperature display screen located outside the cabinet door. The thermometer and the hygrometer can obtain the humidity value and the temperature value inside the cabinet in real time, and intuitively display the current temperature value and humidity value inside the cabinet through the humidity display screen and the temperature display screen. The operator can adjust the temperature and humidity inside the cabinet in a timely manner according to the currently displayed temperature value and humidity value. This makes the detection of the switchgear discharge test device more accurate and more convenient. In addition, the temperature value and the humidity value can also be displayed on the same display screen. The specific display method is not limited in the embodiments of the present application.

[0065] Exemplarily, in the current test, it is required that the temperature inside the cabinet is 20 degrees Celsius and the humidity is 60%. When the operator observes the humidity display 183 and the temperature display 184, it is found that the current humidity inside the cabinet displayed on the humidity display screen is 55%. At this time, the operator can operate the humidity controller 181 on the cabinet door to turn on the humidifying device located outside the cabinet. The moisture is injected into the cabinet through the humidifying pipeline 1421. When the humidity value displayed on the humidity display screen reaches 60%, the external humidifying device is turned off through the humidity controller 181 to stop injecting moisture, and the inside of the cabinet maintains the required environment for the current test.

[0066] Optionally, the switchgear discharge test device further includes a voltage regulator 19 installed on the cabinet door 112. The voltage regulator 19 is used to adjust the voltage applied to the wiring structure. One end of the wiring structure is connected to an external voltage device. Different voltages can be adjusted through the external voltage device, so that the switchgear discharge test device can detect the discharge conditions under different voltages, thereby simulating the damage conditions of the insulating material under the current voltage of the switchgear. However, the external voltage device is located outside the cabinet. When adjusting the voltage on the external voltage device, it is impossible to observe the discharge phenomenon at the moment of voltage change at the same time. Therefore, a voltage regulator 19 can be set on the cabinet door 112 to adjust the voltage, so that an operator can complete the adjustment and observation work at the same time.

[0067] In addition, the voltage regulator 19, the humidity controller 181, and the temperature controller 182 in the embodiments of the present application can be of the button adjustment type, or of the knob adjustment type or other adjustment methods. The embodiments of the present application do not make any limitations here.

[0068] In summary, the embodiment of the present application provides a switch cabinet discharge test device including a cabinet body, two insulators, two wiring structures, and a simulation component. One end of each of the two wiring structures is electrically connected to the two insulators respectively, and the other ends of the two wiring structures located outside the cabinet body can be connected to external cables to transmit voltage to the wiring structures. In this way, the temperature and humidity inside the cabinet can be changed by adjusting the temperature regulator and humidity regulator in the simulation component, and the discharge conditions of the two wiring structures inside the cabinet under different temperature and humidity environments and different voltages can be obtained. This solves the problem that the detection results of the switch cabinet discharge test device in the related art are relatively single, and achieves the effect of improving the comprehensiveness of the detection results.

[0069] When using the switch cabinet discharge test device in any of the above embodiments of the present application to test the discharge conditions inside the switch cabinet, the discharge conditions in multiple modes and the damage conditions of the insulating materials can be tested. Specifically as follows:

[0070] In the switch cabinet discharge test device of the present application, a base with a slide rail is included inside the cabinet body. The two insulators and the insulating partition are arranged on the slide rail, and the relative positions of the insulators and the insulating partition with respect to the wiring structure can be changed by moving the insulators and the insulating partition on the slide rail, so as to test the damage conditions of the insulating partition under the discharge conditions at different distances.

[0071] The insulating partition is detachably connected to the slide rail. When the insulating partition is removed, insulating materials can be wrapped around the wiring structure to detect the insulation performance of different insulating materials.

[0072] The wiring structure is connected to an external voltage device, and the external voltage device can apply different voltages to the wiring structure to obtain the discharge conditions and the damage conditions of the insulating partition under different voltages.

[0073] The cabinet body also includes a humidifying pipeline, which can be connected to an external humidifying device through the humidifying pipeline, and moisture can be injected into the cabinet body through the humidifying pipeline to adjust the humidity inside the cabinet, and the damage conditions of the insulating partition under the discharge conditions at different humidities can be obtained.

[0074] A temperature regulator is also provided inside the cabinet body. The temperature regulator can adjust the temperature inside the cabinet to obtain the damage conditions of the insulating partition under the discharge conditions at different temperatures. In addition, the temperature regulator can also make the moisture distribution more uniform, thereby increasing the accuracy of the detection results.

[0075] In addition, the cabinet door also includes a humidity display and a temperature display, which can display the real-time humidity and temperature status inside the cabinet; the cabinet door also includes a window, through which the discharge conditions and the damage conditions of the insulating materials can be observed in real time. The cabinet door also includes a voltage regulator, a humidity controller, and a temperature controller, which make the operation more convenient and save labor, and one operator can adjust the above parameters while observing the discharge conditions.

[0076] The above-mentioned multiple modes can be combined with each other, so as to detect the discharge conditions under different temperatures, humidities and voltages.

[0077] The switchgear discharge test device in any of the above embodiments can not only test the discharge conditions of the switchgear and the damage conditions of the insulating materials, but also study the causes of discharge and the feasibility of relevant discharge treatment measures by simulating the discharge conditions under different humidities, temperatures and voltages.

[0078] The above are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A switch cabinet discharge test device, characterized in that, The switchgear discharge test device includes a cabinet body, two insulators, an insulating partition, a base, two wiring structures, and a simulation component; The insulators are located in the cabinet body. The wiring structures are installed on the cabinet body, with one end inside the cabinet body and the other end outside the cabinet body. Each wiring structure includes two wiring cylinders and electric connection wires respectively located in the two wiring cylinders. One ends of the two electric connection wires are respectively connected to the two insulators located inside the cabinet body. One end of one of the two electric connection wires is grounded, and the other end of the other electric connection wire is connected to an external voltage device. The insulating partition is located between the two insulators; The simulation component includes a temperature regulator and a humidity regulator located in the cabinet body. The humidity regulator includes a humidifying pipeline, which is located at a position on the first inner wall of the cabinet body close to the top of the cabinet body. The humidifying pipeline has a plurality of openings arranged along the length direction. One end of the humidifying pipeline passes through the cabinet body and is configured to be connected to an external humidifying device; The base includes a slide rail, and the length direction of the slide rail is parallel to the arrangement direction of the two wiring structures; the other ends of the insulators are installed on the slide rail, and the insulating partition is installed on the slide rail, and the plate surface of the insulating partition is perpendicular to the connection line of the two insulators.

2. The switchgear discharge test device according to claim 1, characterized in that, The temperature regulator includes a heating wire, which is located at a position on the first inner wall of the cabinet body close to the bottom of the cabinet body, and the wiring structure is located on the first inner wall.

3. The switchgear discharge test device according to claim 2, wherein, The cabinet body is in the shape of a cuboid. The side of the cabinet body opposite to the first inner wall has a cabinet door, and the cabinet door has a viewing window.

4. The switchgear discharge test device according to claim 3, characterized in that, The switchgear discharge test device further includes a humidity controller and a temperature controller installed on the cabinet door. The humidity controller is electrically connected to the humidity regulator, and the temperature controller is electrically connected to the temperature regulator.

5. The switchgear discharge test device according to claim 3, wherein The switchgear discharge test device further includes a voltage regulator installed on the cabinet door, and the voltage regulator is used to adjust the voltage applied to the wiring structure.

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