Switch cabinet partial discharge test method, device and equipment and storage medium

Abstract

The invention discloses a switch cabinet partial discharge test method, device and equipment and a storage medium. The method comprises that a test task instruction for at least one to-be-tested switch cabinet sent by a switch cabinet partial discharge test system is received, the test task instruction comprises the identification of the to-be-tested switch cabinet, the position of the to-be-tested switch cabinet and the test type, and the test type comprises an ultrasonic test and a ground wave test; based on the test task instruction, performing an ultrasonic test and a ground wave test on at least one switch cabinet to be tested to obtain test data of the switch cabinet to be analyzed; and determining a test result corresponding to the to-be-tested switch cabinet based on historical switch cabinet test data of the to-be-tested switch cabinet and the to-be-analyzed switch cabinet test data. And the partial discharge test efficiency of the switch cabinet and the accuracy of the test result are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of partial discharge testing of switch cabinets, and in particular to a partial discharge testing method, device, equipment and storage medium for switch cabinets. Background Art

[0002] Switchgear partial discharge test (i.e. switchgear partial discharge test) is an important power equipment detection method, which aims to detect the partial discharge of high-voltage switchgear during operation and then find out the potential fault points in the switchgear.

[0003] The partial discharge test of switchgear can detect various defects, but there are also many problems. The partial discharge test is easily affected by external interference, which can cause misjudgment. The test results of the existing partial discharge test method are not accurate enough. Although the discharge signal detected by some high-voltage switchgear is not strong, serious insulation degradation and even tripping occur within a short period of time after the detection. Some switchgear discharge signals are very strong, but they have been very stable and have been able to operate stably for more than ten years. How to efficiently and accurately judge the degradation trend of the partial discharge of the switchgear and ensure the reliable operation of the switchgear undoubtedly brings great challenges to the testers. In addition, since the on-site test of the partial discharge test of the switchgear is recorded on paper, after the test, the data needs to be entered into a test report and uploaded to the production system. The amount of data is huge, and the testers need to spend a lot of time and energy to record and compare, which adds a great burden to the production work. Summary of the invention

[0004] The present invention provides a switch cabinet partial discharge test method, device, equipment and storage medium to solve the problem of low switch cabinet test efficiency.

[0005] According to one aspect of the present invention, a switch cabinet partial discharge test method is provided, the method comprising:

[0006] Receiving a test task instruction for at least one switch cabinet to be tested sent by a switch cabinet partial discharge test system, wherein the test task instruction includes an identifier of the switch cabinet to be tested, a position of the switch cabinet to be tested, and a test type, and the test type includes an ultrasonic test and a geomagnetic wave test;

[0007] Based on the test task instructions, ultrasonic testing and geomagnetic wave testing are performed on at least one switch cabinet to be tested to obtain switch cabinet test data to be analyzed. For each switch cabinet to be tested, the test result corresponding to the switch cabinet to be tested is determined based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

[0008] According to another aspect of the present invention, a switch cabinet partial discharge test device is provided, the device comprising:

[0009] A test instruction receiving module, used to receive a test task instruction for at least one switch cabinet to be tested, sent by a switch cabinet partial discharge test system, wherein the test task instruction includes an identification of the switch cabinet to be tested, a position of the switch cabinet to be tested, and a test type, and the test type includes an ultrasonic test and a geomagnetic wave test;

[0010] A testing module is used to perform ultrasonic testing and geomagnetic wave testing on at least one switch cabinet to be tested based on the test task instructions to obtain switch cabinet test data to be analyzed, and for each switch cabinet to be tested, determine the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

[0011] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0012] at least one processor; and

[0013] a memory communicatively connected to the at least one processor; wherein,

[0014] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the switch cabinet partial discharge testing method described in any embodiment of the present invention.

[0015] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the switch cabinet partial discharge test method described in any embodiment of the present invention when executed.

[0016] The technical solution of the embodiment of the present invention improves the convenience of switch cabinet testing by receiving a test task instruction for at least one switch cabinet to be tested sent by a switch cabinet partial discharge test device, wherein the test task instruction includes the switch cabinet identification, the switch cabinet position and the test type to be tested, and the test type includes ultrasonic test and geoelectric wave test; the test task instruction for at least one switch cabinet to be tested sent by the switch cabinet partial discharge test device improves the convenience of switch cabinet testing, and then, based on the test task instruction, ultrasonic test and geoelectric wave test are performed on at least one switch cabinet to be tested to obtain switch cabinet test data to be analyzed, and for each switch cabinet to be tested, the test result corresponding to the switch cabinet to be tested is determined based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed, so as to facilitate the subsequent analysis of the degradation trend of the switch cabinet according to the test results, and generate a test report of the switch cabinet, which is convenient for system archiving, solves the problem of low efficiency of switch cabinet testing, and achieves the beneficial effects of saving human resources, improving the convenience of switch cabinet testing, and improving the partial discharge test efficiency of the switch cabinet and the accuracy of the test results.

[0017] It should be understood that the contents described in this section are not intended to identify the key components or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 is a flow chart of a switch cabinet partial discharge testing method provided according to Embodiment 1 of the present invention;

[0020] Figure 2a is a flow chart of a switch cabinet partial discharge testing method provided according to Embodiment 2 of the present invention;

[0021] Figure 2b is a sample trend chart of data analysis of an optional example of a switch cabinet partial discharge test method provided in Embodiment 2 of the present invention;

[0022] Figure 3 is a structural schematic diagram of a switch cabinet partial discharge test device provided according to Embodiment 3 of the present invention;

[0023] Figure 4 It is a structural schematic diagram of an electronic device for implementing the switch cabinet partial discharge test method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] Embodiment 1

[0027] Figure 1 A flow chart of a switch cabinet partial discharge test method is provided for the first embodiment of the present invention. This embodiment is applicable to switch cabinet testing. The method can be performed by a switch cabinet partial discharge test device. The switch cabinet partial discharge test device can be implemented in the form of hardware and / or software. The switch cabinet partial discharge test device can be configured in an electronic device. Figure 1 As shown, the method includes:

[0028] S110: Receive a test task instruction for at least one switch cabinet to be tested, which is sent by a switch cabinet partial discharge test system.

[0029] The test task instruction includes the switch cabinet identification, the switch cabinet location and the test type, and the test type includes ultrasonic test and geomagnetic wave test. The switch cabinet partial discharge test system can be understood as an intelligent system for assisting the switch cabinet partial discharge test. The switch cabinet partial discharge test system can be installed in hardware devices, such as: intelligent terminals and partial discharge testers.

[0030] Specifically, the switch cabinet to be tested in the substation to be tested is selected by the switch cabinet partial discharge test system, for example: it can be a row of switch cabinets in a high-voltage room or all switch cabinets in a high-voltage room, or a single switch cabinet can be selected, and multiple selections are made based on the switch cabinet identification. This embodiment does not limit the selection method. The switch cabinet partial discharge test system issues a test task instruction for at least one selected switch cabinet to be tested. It can be understood that the switch cabinet structure is generally a row of box-type metal cabinets connected together, including multi-faceted switch cabinets, a high-voltage room can have one or two rows, and a substation can have multiple high-voltage rooms. The name and position order table of the substation switch cabinet to be tested can be pre-edited, that is, the test attachment, recording time (for example: the terminal system comes with recording time), temperature, humidity, switch cabinet parameters (for example: can be entered on-site, or edited on the terminal system, automatically recorded in the table after the first entry, no need to enter again in subsequent tests), background value in the air, and background value of the front and rear doors.

[0031] S120. Perform an ultrasonic test and a geomagnetic wave test on at least one switch cabinet to be tested based on the test task instruction to obtain switch cabinet test data to be analyzed. For each switch cabinet to be tested, determine a test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

[0032] The historical switch cabinet test data can be understood as the test results obtained by performing historical tests on the switch cabinet to be tested, and the historical switch cabinet test data can include historical ultrasonic test data and historical geomagnetic wave test data. The test results can be understood as the results obtained by comparing and analyzing the historical switch cabinet test data with the switch cabinet test data to be analyzed.

[0033] Specifically, for each switchgear to be tested, its previous ultrasonic test and geomagnetic wave test data must first be collected. The test data to be analyzed is compared with the historical test data to analyze the changing trends of the insulation status and discharge conditions of the switchgear. Focus on outliers or significant changes in the test data. Based on the comparison and analysis results of the test data, the current insulation status of the switchgear is evaluated. If the test data shows that the discharge signal is enhanced or the insulation resistance is decreased, it may indicate that there are insulation defects or discharge phenomena inside the switchgear. Based on the evaluation results, the test results of each switchgear to be tested are determined. If the test data indicates that there are potential problems with the switchgear, further inspection and repair are required.

[0034] In the embodiment of the present invention, by performing ultrasonic testing and geomagnetic wave testing on at least one switch cabinet to be tested, and determining the test results based on historical test data and the test data to be analyzed, the insulation state and discharge condition of the switch cabinet can be effectively evaluated. For switch cabinets with potential problems, it is recommended to conduct timely inspection and maintenance to ensure their safe and reliable operation.

[0035] Optionally, after determining the test results corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed, it also includes: generating a test report based on the switch cabinet identification to be tested, the position of the switch cabinet to be tested, the test type, the switch cabinet test data to be analyzed and the test results of at least one switch cabinet to be tested. Specifically, after completing all tests on all test points, the system prompts that the work is completed and whether to perform analysis. The test results can be analyzed to analyze which specific test points have problems, the type of problems, the severity of the problems, etc. The test personnel can also analyze the completed work at any time as needed to generate a test report. In addition, the system supports the function of analyzing a single test point, and can call up trend graphs to compare the changing trends of previous data (trend Figure 1 Generally, the time is set as the horizontal axis and the amplitude is set as the vertical axis, including bar graphs or curve graphs of geomagnetic waves and ultrasonic waves. The test report can also include the test title, test date, switch cabinet information to be tested (identification, location), test type, test data, analysis conclusions, etc.

[0036] Exemplarily, the front panel of the switch cabinet body can be divided into three test points, namely upper, middle and lower, in order of position for testing and data recording. After the front panel testing of all the switch cabinets in the high-voltage room is completed, the rear panel is tested in order of position, and the testing is also performed and the data is recorded at the upper, middle and lower points. After the ultrasonic test is completed on all the test points of all the switch cabinets to be tested, the geomagnetic wave test is then performed.

[0037] Optionally, performing ultrasonic testing on at least one switch cabinet to be tested based on the test task instruction includes: for each switch cabinet to be tested, determining a test sequence corresponding to the switch cabinet to be tested based on the switch cabinet identification and the position of the switch cabinet to be tested, and performing ultrasonic testing on the switch cabinet to be tested based on the test sequence to obtain ultrasonic test data; determining an ultrasonic difference between the ultrasonic test data and preset standard ultrasonic test data, and storing the ultrasonic test data if the absolute value of the ultrasonic difference is not greater than a preset ultrasonic threshold; wherein the preset ultrasonic threshold is determined based on ambient temperature data and / or ambient humidity data of the environment in which the switch cabinet to be tested is located.

[0038] Specifically, all switch cabinets to be tested are registered and classified according to the identification and location information of the switch cabinet to be tested. At the same time, the ambient temperature and humidity data of each switch cabinet to be tested are recorded to provide a basis for the subsequent determination of the preset ultrasonic threshold Φ. The test sequence corresponding to the switch cabinet to be tested is determined based on the identification of the switch cabinet to be tested, the location of the switch cabinet to be tested and the equipment layout. The switch cabinet to be tested is ultrasonically tested based on the test sequence to obtain ultrasonic test data. It is worth noting that in the initial test, by determining the ultrasonic difference between the ultrasonic test data and the preset standard ultrasonic test data, in the subsequent test, the ultrasonic difference between the ultrasonic test data and the ultrasonic test data of the historical test can be determined, for example, the ultrasonic difference between the ultrasonic test data and the ultrasonic test data of the previous test. In the case where the absolute value of the ultrasonic difference is not greater than the preset ultrasonic threshold Φ, a prompt is displayed on the screen of the switch cabinet partial discharge test device whether to save the test data. By pressing the confirmation control on the switch cabinet partial discharge test device, the ultrasonic test data of this time is stored. If the absolute value of the difference between the ultrasonic data and the last test data is greater than Φ, the test personnel are prompted that there may be interference and whether to retest. The preset ultrasonic threshold value may be set based on experience, for example, 8 dBuV, or may be adjusted based on field experience. After saving the ultrasonic test data of the current test point, the ultrasonic test may be directly skipped to the next test point for ultrasonic testing.

[0039] Optionally, when there are a large number of switch cabinets to be tested, after measuring a row of switch cabinets to be tested, if the absolute values ​​of the ultrasonic differences of the row of switch cabinets to be tested are not greater than the preset ultrasonic threshold, the confirmation control can be directly pressed on the switch cabinet partial discharge test device to store the ultrasonic test data of all test points of the row of switch cabinets to be tested.

[0040] Exemplarily, in the switch cabinet partial discharge test system, select the "ultrasonic test" mode, select the corresponding substation, fill in the temperature and humidity, then select the "ultrasonic test" mode, select the location to start the test, and take the switch cabinet with only one row in the high-voltage room as an example. When editing the table, the switch cabinet row close to the front door is generally the first, and the switch cabinet row close to the back door is the last. When testing, first test from the front of the first switch cabinet from top to bottom, confirm and record the relevant data, and automatically jump to the next test point (for example, after testing the front and bottom of switch cabinet A, the system automatically jumps to the front and top of the next switch cabinet B. The test sequence can be selected from the switch sequence on the table from top to bottom, or from bottom to top. The default is generally: front cabinet panel from top to bottom. After testing the front cabinet panel of the last switch cabinet, it is automatically tested from the back panel of the last switch cabinet from bottom to top. During the test, the cursor can be used to adjust the test position and record data).

[0041] Optionally, determining the ultrasonic difference between the ultrasonic test data and the preset standard ultrasonic test data also includes: when the absolute value of the ultrasonic difference corresponding to the switch cabinet to be tested is greater than a preset ultrasonic threshold, generating a first abnormal prompt information, and displaying the first abnormal prompt information through a preset prompt method; wherein the preset prompt method includes displaying the abnormal prompt information through a switch cabinet partial discharge test device and / or playing the abnormal prompt information through a switch cabinet partial discharge test device.

[0042] The first abnormal prompt information may be understood as ultrasonic data abnormal prompt information.

[0043] Specifically, when the ultrasonic difference corresponding to the switch cabinet to be tested is greater than the preset ultrasonic threshold Φ, a first abnormal prompt message of "The test may be abnormal, do you want to retest?" is generated. If you choose to retest, the test data is reread to overwrite the current test data. If the tester confirms that it is not external interference and chooses not to retest, the test will go directly to the next test point.

[0044] Optionally, when there are a large number of switch cabinets to be tested, after measuring a row of switch cabinets to be tested, if the absolute value of the ultrasonic difference in the row of switch cabinets to be tested is greater than a preset ultrasonic threshold, a first abnormal prompt information is generated based on the switch cabinet identification and the switch cabinet position.

[0045] Optionally, performing a geowave test on at least one switch cabinet to be tested based on the test task instruction includes: after completing the ultrasonic test on all switch cabinets to be tested, performing a geowave test on each switch cabinet to be tested to obtain geowave test value data; when the geowave test data is greater than a preset geowave threshold, generating a second abnormal prompt information based on the geowave test data, the ultrasonic test data value and the preset test threshold.

[0046] The second abnormal prompt information can be understood as the abnormal prompt information of the geomagnetic wave data.

[0047] Specifically, after completing the ultrasonic test on all switch cabinets to be tested, select the "ground wave test" mode through the switch cabinet partial discharge test device to read and record the background ground wave data of the front door, back door, air, etc. For each switch cabinet to be tested, perform a ground wave test on the switch cabinet to be tested. When the ground wave difference data is not greater than the preset ground wave threshold, analyze the ultrasonic test data, and give a "normal", "stable", "concern" or "abnormal" prompt based on the ultrasonic test data. This embodiment defines six levels of switch cabinet partial discharge defect intensity, which are: normal, stable, concern, abnormal, severe, and urgent. In order to facilitate testers to better find problems, six levels can be set to gradually deepen from green to red, and a sound reminder function can be set. After the tester presses the confirmation button on the switch cabinet partial discharge test device to read and save the test data, the system immediately makes a judgment and issues a prompt tone of the relevant level, including a prompt tone that the test result may be inaccurate. The tester can turn off all or some of the prompts (for example, if the tester only wants to know that there are no problems with the test, he can only turn on the prompts such as "abnormal, serious, urgent", "test may be abnormal, do you want to retest?"

[0048] Specifically, when the ground wave difference data is not greater than the preset ground wave threshold, if the ultrasonic test data is not greater than the preset ultrasonic attention value, a normal prompt message is prompted. If the ultrasonic test data is not greater than the preset ultrasonic attention value, if the ultrasonic difference value is greater than the preset first test threshold, and the ultrasonic difference value is less than the preset second test threshold, a attention prompt message is generated; if the ultrasonic difference value is greater than the preset second test threshold, an abnormal prompt message is generated. The preset first test threshold and the preset second test threshold can be preset based on experience and are not limited in this embodiment.

[0049] Exemplarily, when the ultrasonic test data of this time is less than or equal to the preset ultrasonic attention value (the preset ultrasonic attention value defaults to less than or equal to 0dBuV), the system prompts "normal" and continues to test the next test point; when the ultrasonic test data of this time is greater than the preset ultrasonic attention value, and the increment compared with the last test does not exceed δ1, the system prompts "stable" and continues to test the next test point; when the ultrasonic test data of this time is compared with the last test, the increment exceeds δ1, and the increment does not exceed δ2, the system prompts "attention" and continues to test the next test point; when the ultrasonic test data of this time is compared with the last test, the increment exceeds δ2, the system prompts "abnormal" and continues to test the next test point.

[0050] Optionally, when the ground wave test data is greater than a preset ground wave threshold, check whether the discharge type has changed, and if so, remind to retest or confirm the data accuracy.

[0051] Exemplarily, when the ground wave test data is not greater than the preset ground wave threshold (the preset ground wave threshold can be pre-set based on experience, for example: 20dBmV), the ultrasonic test data is analyzed, and when the ultrasonic test data is less than or equal to the preset ultrasonic threshold (ultrasonic attention value) (the ultrasonic attention value defaults to less than or equal to 0dBuV), the prompt is "normal" and the test of the next test point is continued; when the ultrasonic test data is greater than the preset ultrasonic threshold (ultrasonic attention value) and the ultrasonic difference does not exceed δ1, the system prompts "stable" and the test of the next test point is continued; when the ultrasonic difference exceeds δ1 and the ultrasonic difference does not exceed δ2, the system prompts "attention" and the test of the next test point is continued; when the ultrasonic difference exceeds δ2, the system prompts "abnormal" and the test of the next test point is continued.

[0052] When the ground wave test data is not greater than the preset ground wave threshold (ground wave attention value) (the ground wave attention value defaults to 20dBmV), the system analyzes whether the discharge type of this ground wave test has changed from the discharge type of the last test. When the discharge type has not changed, the system enters the next step. If it has changed, it will remind you and prompt whether to retest. The tester can choose to retest. At this time, the retested data will overwrite the current data; when the tester confirms that there is no external interference and the data is accurate, he can choose to continue, and then enter the next step. First, determine whether the ground wave difference between this ground wave test data and the last ground wave test data exceeds θ1. If not, compare the ultrasonic signal. If the ultrasonic difference is not greater than δ1, it prompts "stable" and continues to test the next test point; when the ultrasonic difference is greater than δ1 but not greater than δ2, it prompts "attention" and continues to test the next test point; when the ultrasonic difference is greater than δ2, it prompts "abnormal" and continues to test the next test point.

[0053] When the ground wave test data is greater than the preset ground wave threshold (ground wave attention value), analyze whether the discharge type of this ground wave test has changed from the discharge type of the last test. If there is a change, a reminder will be given and prompt whether to retest. The tester can choose to retest, and the retested data will overwrite the current data; when the tester confirms that there is no external interference, the data is accurate or when the discharge type has not changed, you can choose to continue, and then enter the next step. First determine whether the ground wave difference exceeds θ1. When the ground wave difference exceeds θ1 but does not exceed θ2, compare the ultrasonic signals. When the ultrasonic difference is not greater than δ1, it prompts "attention" and continues to the next test point test; when the ultrasonic difference increment is greater than δ1 but not greater than δ2, it prompts "abnormal" and continues to the next test point test; when the ultrasonic difference is greater than δ2, it prompts "serious" and continues to the next test point test.

[0054] When the ground wave test data is greater than the preset ground wave threshold (ground wave warning value), the system analyzes whether the discharge type of this TEV test has changed from the discharge type of the last test. If it has changed, it will remind you and prompt whether to retest. The tester can choose to retest, and the retested data will overwrite the current data; when the tester confirms that there is no external interference, the data is accurate, or when the discharge type has not changed, he can choose to continue, and then proceed to the next step. When the ground wave difference exceeds θ2, the ultrasonic signal comparison begins. When the ultrasonic difference is not greater than δ1, it prompts "abnormal" and continues to the next test point test; when the ultrasonic difference is greater than δ1 but not greater than δ2, it prompts "serious" and continues to the next test point test; when the ultrasonic difference is greater than δ2, it prompts "urgent" and continues to the next test point test.

[0055] Among them, δ1, δ2, θ1 and θ2 are preset values, which can be preset and adjusted according to the season, indoor temperature, humidity and air temperature, and this embodiment does not specifically limit them.

[0056] Optionally, before testing at least one switch cabinet to be tested based on the test task instructions, it also includes: obtaining test environment data and switch cabinet parameters corresponding to the switch cabinet to be tested, wherein the test environment data includes ambient temperature data and / or ambient humidity data, and the switch cabinet parameters include switch cabinet model and / or rated voltage.

[0057] Specifically, use a temperature sensor or a temperature and humidity sensor to measure the temperature of the environment where the switch cabinet is located. Transmit the data to the test instrument or data recording system by wired or wireless means. Use a temperature and humidity sensor or a separate humidity sensor to measure the ambient humidity. Check the external label of the switch cabinet to obtain information such as the switch cabinet model, rated voltage and current level.

[0058] The technical solution of the embodiment of the present invention improves the convenience of switch cabinet testing by receiving a test task instruction for at least one switch cabinet to be tested sent by a switch cabinet partial discharge test system, wherein the test task instruction includes the switch cabinet identification, the switch cabinet position and the test type to be tested, and the test type includes ultrasonic testing and geoelectric wave testing; and the test task instruction for at least one switch cabinet to be tested sent by a switch cabinet partial discharge test device improves the convenience of switch cabinet testing, and then, based on the test task instruction, performs ultrasonic testing and geoelectric wave testing on at least one switch cabinet to be tested to obtain switch cabinet test data to be analyzed, and for each switch cabinet to be tested, determines the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed, thereby solving the problem of low switch cabinet testing efficiency and achieving the beneficial effects of saving human resources, improving the convenience of switch cabinet testing, and improving the partial discharge testing efficiency of the switch cabinet and the accuracy of the test results.

[0059] Embodiment 2

[0060] Figure 2a A flow chart of a switch cabinet partial discharge test method provided in Embodiment 2 of the present invention, this embodiment is a further optimization of the above embodiment. Optionally, the method further includes: upon receiving a retest task instruction sent by the switch cabinet partial discharge test device, retesting at least one switch cabinet to be tested based on the retest task instruction.

[0061] like Figure 2a As shown, the method includes:

[0062] S210: Receive a test task instruction for at least one switch cabinet to be tested, which is sent by a switch cabinet partial discharge test system.

[0063] S220. Perform ultrasonic testing and geomagnetic wave testing on at least one switch cabinet to be tested based on the test task instruction to obtain switch cabinet test data to be analyzed. For each switch cabinet to be tested, determine the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

[0064] S230: When receiving a retest task instruction sent by the switch cabinet partial discharge test device, retest at least one switch cabinet to be tested based on the retest task instruction.

[0065] Among them, the retest task instruction can be understood as a retest task instruction.

[0066] Specifically, during the test, the test data may be interfered by the outside world or the test data may be read and saved before it is stable. If the test personnel find that the data is inaccurate, they may delete the data and retest. The switch cabinet partial discharge test device may be used to select the switch cabinet to be retested, and the retest task instruction may be sent to make at least one switch cabinet to be retested by ultrasonic test and / or geomagnetic wave test.

[0067] The technical solution of the embodiment of the present invention is to retest at least one switch cabinet to be tested based on the retest task instruction when receiving the retest task instruction sent by the switch cabinet partial discharge test device, thereby reducing the error or uncertainty that may exist in the initial test and improving the accuracy and reliability of the test results.

[0068] As an optional example of an embodiment of the present invention, the switch cabinet partial discharge test method of this embodiment specifically includes the following steps:

[0069] The switch cabinet partial discharge test system can store a large amount of partial discharge test data of each switch cabinet in each substation. When used for the first time, you can edit the name and position sequence of the switch cabinet in the high-voltage room of the test substation on the terminal (arrange them in position order to facilitate testing in sequence) and then import them into the switch cabinet partial discharge test system. You can also create a new table on the device and edit the name and position sequence of the switch cabinet in the high-voltage room of the substation on site. If the switch cabinet position sequence is found to be incorrect during the test, you can also edit and modify it on site. For the first use, since there is no relevant historical data record on the switch cabinet partial discharge test system, you can test it based on test experience. The switch cabinet partial discharge test system only collects the first data and generates the test report attachment. You can also enter the historical data of the previous test into the test report table on the terminal and then import it into the switch cabinet partial discharge test system. In this way, there is also historical data to assist in judgment during the first test.

[0070] In order to realize auxiliary judgment more intuitively, six levels of switch cabinet partial discharge defect intensity are defined, which are: normal, stable, concerned, abnormal, serious, and urgent. To facilitate testers to better find problems, six levels can be set to gradually deepen from green to red, and a sound reminder function can be set. After the tester presses the confirmation button on the switch cabinet partial discharge test system to read and save the test data, the system immediately makes a judgment and issues a prompt tone of the relevant level, including a prompt tone that the test result may be inaccurate. The tester can turn off all or some prompt tones (for example, if the tester only wants to know that there is no problem with the test, he can only turn on the prompt tones such as "abnormal, serious, urgent", "test may be abnormal, do you want to retest?", etc.

[0071] The switch cabinet structure is generally a row of box-type metal cabinets connected together, including multi-faceted switch cabinets. The equipment corresponding to the switch cabinet will basically not be changed after commissioning. Some high-voltage rooms have two rows, some have only one row, and a substation may have multiple high-voltage rooms. The test process is: first select the corresponding substation (the first use requires editing the name and position sequence table of the relevant substation switch cabinet on the terminal, which is also the test attachment), record the time (for example: the system comes with recording time), temperature, humidity, switch cabinet parameters (can be entered on-site or edited on the terminal. After the first entry, it will be automatically recorded in the table, and no need to enter it again for subsequent tests), background value in the air, background value of the front and rear doors, and then perform ultrasonic testing first. The cabinet front panel can be divided into upper, middle and lower points for testing and recording data according to the position sequence. After the front panel test of all switch cabinets in the high-voltage room is completed, the rear panel test is performed in the position sequence, and the test is also performed and the data is recorded according to the upper, middle and lower points, and then the ground wave test is performed. The test sequence is similar to the ultrasonic test sequence (the data mainly includes the number of pulses, amplitude, discharge type, etc.).

[0072] Ultrasonic testing:

[0073] Select the "ultrasonic test" mode in the switch cabinet partial discharge test system, select the corresponding substation, fill in the temperature and humidity on the device, then select the "ultrasonic test" mode, and select the position to start the test. For example: take the switch cabinet with only one row in the high-voltage room as an example. When editing the table, the switch cabinet row close to the front door is generally the first, and the switch cabinet row close to the back door is the last. When testing, first test from the front of the first switch cabinet from top to bottom, click Confirm on the device to record the relevant data, and automatically jump to the next test point (for example, after testing the front and bottom of switch cabinet A, the system automatically jumps to the front and top of the next switch cabinet B. The test sequence can be selected from the switch sequence on the table from top to bottom, or from bottom to top. The default is generally: the front cabinet panel is from top to bottom. After testing the front cabinet panel of the last switch cabinet, it is automatically tested from the back panel of the last switch cabinet from bottom to top. During the test, the cursor can be used to adjust the test position and record data).

[0074] After starting the test, the switch cabinet partial discharge test system will display the test point, and the screen will prompt whether to save the test data. By pressing the OK button on the device, the current test data can be read. When the absolute value of the ultrasonic difference is not greater than the preset ultrasonic threshold, it will directly jump to the next test point for testing. The tester repeats the operation on the switch cabinet partial discharge test system to confirm the reading and saving of the data.

[0075] During the test, the test data may be affected by external interference or the saved data may be read before the test is stable. If the test personnel find that the data is inaccurate, they can delete the data and retest. Since ultrasonic testing is particularly susceptible to external interference, auxiliary criteria are added to remind test personnel that there may be inaccurate tests. After reading and saving the ultrasonic data, if the data is compared with the last data, and the absolute value of the ultrasonic difference is greater than the preset ultrasonic threshold, the prompt "The test may be abnormal, do you want to retest?" If you choose to retest, the system re-reads the test data and overwrites the current data. If the test personnel confirms that there is no external interference and chooses not to retest, it will directly enter the next test point. After all test points are tested, you will be prompted to enter the geomagnetic wave test.

[0076] Earth wave test:

[0077] After the ultrasonic test is completed, the ground wave test mode is entered. The background TEV data of the front door, rear door, air, etc. can be read directly with the tester, the device can read directly, or it can be entered manually. Then the ground wave test of the switch cabinet is started.

[0078] When the button is pressed to confirm the reading and saving of test data, the system reads the saved test data to the corresponding table position, and compares the current geomagnetic wave test data and ultrasonic data with the geomagnetic wave test data and ultrasonic data of the previous test in combination with the season, indoor temperature, humidity, air temperature parameters, etc., to give auxiliary judgments, greatly improving the accuracy of test analysis. The process is as follows:

[0079] 1. When the ground wave test data is not greater than the preset ground wave threshold (the preset ground wave threshold can be pre-set based on experience, for example: 20dBmV), analyze the ultrasonic test data. When the ultrasonic test data is less than or equal to the preset ultrasonic threshold (ultrasonic attention value) (the ultrasonic attention value defaults to less than or equal to 0dBuV), it prompts "normal" and continues to the next test point test; when the ultrasonic test data is greater than the preset ultrasonic threshold (ultrasonic attention value) and the ultrasonic difference does not exceed δ1, the system prompts "stable" and continues to the next test point test; when the ultrasonic difference exceeds δ1 and the ultrasonic difference does not exceed δ2, the system prompts "attention" and continues to the next test point test; when the ultrasonic difference exceeds δ2, the system prompts "abnormal" and continues to the next test point test.

[0080] 2. When the ground wave test data is not greater than the preset ground wave threshold (ground wave attention value) (the ground wave attention value defaults to 20dBmV), the system analyzes whether the discharge type of this ground wave test has changed from the discharge type of the last test. When the discharge type has not changed, the system enters the next step. If it has changed, it will remind you and prompt whether to retest. The tester can choose to retest. At this time, the retested data will overwrite the current data; when the tester confirms that there is no external interference and the data is accurate, he can choose to continue, and then enter the next step. First, determine whether the ground wave difference between this ground wave test data and the last ground wave test data exceeds θ1. If not, compare the ultrasonic signal. If the ultrasonic difference is not greater than δ1, it prompts "stable" and continues to the next test point test; when the ultrasonic difference is greater than δ1 but not greater than δ2, it prompts "attention" and continues to the next test point test; when the ultrasonic difference is greater than δ2, it prompts "abnormal" and continues to the next test point test.

[0081] 3. When the ground wave test data is greater than the preset ground wave threshold (ground wave attention value), analyze whether the discharge type of this ground wave test has changed from the discharge type of the last test. If there is a change, a reminder will be given and prompt whether to retest. The tester can choose to retest, and the retested data will overwrite the current data; when the tester confirms that there is no external interference, the data is accurate or when the discharge type has not changed, you can choose to continue, and then enter the next step. First determine whether the ground wave difference exceeds θ1. When the ground wave difference exceeds θ1 but does not exceed θ2, compare the ultrasonic signals. When the ultrasonic difference is not greater than δ1, it prompts "attention" and continues to the next test point test; when the ultrasonic difference increment is greater than δ1 but not greater than δ2, it prompts "abnormal" and continues to the next test point test; when the ultrasonic difference is greater than δ2, it prompts "serious" and continues to the next test point test.

[0082] 4. When the ground wave test data is greater than the preset ground wave threshold (ground wave warning value), the system analyzes whether the discharge type of this TEV test has changed from the discharge type of the last test. If there is a change, a reminder will be given and prompts whether to retest. The tester can choose to retest, and the retested data will overwrite the current data; when the tester confirms that there is no external interference, the data is accurate, or when the discharge type has not changed, he can choose to continue, and then proceed to the next step. When the ground wave difference exceeds θ2, the ultrasonic signal comparison begins. When the ultrasonic difference is not greater than δ1, it prompts "abnormal" and continues to the next test point test; when the ultrasonic difference is greater than δ1 but not greater than δ2, it prompts "serious" and continues to the next test point test; when the ultrasonic difference is greater than δ2, it prompts "urgent" and continues to the next test point test.

[0083] Among them, δ1, δ2, θ1 and θ2 can be preset and adjusted according to the season, indoor temperature, humidity and air temperature, and this embodiment does not specifically limit them.

[0084] After all the tests of all the test points are completed, the system prompts that the work is completed. Whether to analyze or not, the test results can be analyzed to analyze which test points have problems, the types of problems, the severity of the problems, etc. The test personnel can also analyze the completed work at any time as needed. Figure 2b A sample trend graph of data analysis for an optional example of a switchgear testing method is provided. Figure 2b As shown, the system supports the function of analyzing a single test point and can call up a trend graph to compare the changing trends of previous data (trend Figure 1 It is usually set with time as the horizontal axis and amplitude as the vertical axis, including TEV, ultrasonic bar graph or curve graph, etc.).

[0085] The technical solution of the embodiment of the present invention can realize the test control, data collection, data analysis and report generation of the partial discharge test of the switch cabinet through the partial discharge test system of the switch cabinet, which greatly improves the accuracy of the partial discharge test of the switch cabinet, and also greatly reduces the large amount of time and energy consumed by the test personnel in manually entering the test report, thereby improving the accuracy of the test report data and the test efficiency of the switch cabinet.

[0086] Embodiment 3

[0087] Figure 3 This is a schematic diagram of the structure of a switch cabinet partial discharge test device provided in the third embodiment of the present invention. Figure 3 As shown, the device includes: a test instruction receiving module 310 and a test module 320.

[0088] Among them, the test instruction receiving module 310 is used to receive a test task instruction for at least one switch cabinet to be tested sent by the switch cabinet partial discharge test system, wherein the test task instruction includes the switch cabinet identification, the position of the switch cabinet to be tested and the test type, and the test type includes ultrasonic test and geoelectric wave test; the test module 320 is used to perform ultrasonic test and geoelectric wave test on at least one switch cabinet to be tested based on the test task instruction to obtain the switch cabinet test data to be analyzed, and for each switch cabinet to be tested, determine the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

[0089] The technical solution of the embodiment of the present invention improves the convenience of switch cabinet testing by receiving a test task instruction for at least one switch cabinet to be tested sent by a switch cabinet partial discharge test device, wherein the test task instruction includes the switch cabinet identification, the switch cabinet position and the test type to be tested, and the test type includes ultrasonic testing and geoelectric wave testing; the test task instruction for at least one switch cabinet to be tested sent by the switch cabinet partial discharge test device improves the convenience of switch cabinet testing, and then, based on the test task instruction, ultrasonic testing and geoelectric wave testing are performed on at least one switch cabinet to be tested to obtain switch cabinet test data to be analyzed, and for each switch cabinet to be tested, the test result corresponding to the switch cabinet to be tested is determined based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed, thereby solving the problem of low switch cabinet testing efficiency and achieving the beneficial effects of saving human resources, improving the convenience of switch cabinet testing, and improving the partial discharge test efficiency of the switch cabinet and the accuracy of the test results.

[0090] Optionally, the test module includes:

[0091] An ultrasonic testing unit, configured to determine, for each of the switch cabinets to be tested, a test sequence corresponding to the switch cabinet to be tested based on the switch cabinet identification and the switch cabinet position to be tested, and perform ultrasonic testing on the switch cabinet to be tested based on the test sequence to obtain ultrasonic testing data;

[0092] A data storage unit, used for determining an ultrasonic difference between the ultrasonic test data and preset standard ultrasonic test data, and storing the ultrasonic test data when an absolute value of the ultrasonic difference is not greater than a preset ultrasonic threshold value;

[0093] The preset ultrasonic threshold is determined according to the ambient temperature data and / or ambient humidity data of the environment in which the switch cabinet to be tested is located.

[0094] Optionally, the test module further includes:

[0095] A first abnormal prompt unit, configured to generate first abnormal prompt information when the absolute value of the ultrasonic difference corresponding to the switch cabinet to be tested is greater than a preset ultrasonic threshold, and display the first abnormal prompt information in a preset prompting manner;

[0096] Among them, the preset prompting method includes displaying the abnormal prompting information through the switch cabinet partial discharge testing device and / or playing the abnormal prompting information through the switch cabinet partial discharge testing device.

[0097] Optionally, the test module includes:

[0098] A geo-wave test unit, configured to perform a geo-wave test on each of the switch cabinets to be tested after completing the ultrasonic test on all the switch cabinets to be tested, so as to obtain geo-wave test data;

[0099] A second abnormal prompt unit is used to generate a second abnormal prompt information based on the ground wave test data, the ultrasonic test data and the preset test threshold when the ground wave test data is greater than the preset ground wave threshold

[0100] The device further comprises:

[0101] The retest module is used to retest at least one switch cabinet to be tested based on the retest task instruction when receiving the retest task instruction sent by the switch cabinet partial discharge test device.

[0102] Optionally, the device further includes:

[0103] A data acquisition module is used to obtain test environment data and switch cabinet parameters corresponding to the switch cabinet to be tested before testing at least one switch cabinet to be tested based on the test task instruction, wherein the test environment data includes ambient temperature data and / or ambient humidity data, and the switch cabinet parameters include switch cabinet model and / or rated voltage.

[0104] Optionally, the device further includes:

[0105] A test report generation module is used to generate a test report based on the switch cabinet identification to be tested, the switch cabinet position to be tested, the test type, the switch cabinet test data to be analyzed and the test result of at least one switch cabinet to be tested, after determining the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

[0106] The switch cabinet partial discharge testing device provided in the embodiment of the present invention can execute the switch cabinet partial discharge testing method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0107] Embodiment 4

[0108] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0109] like Figure 4 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0110] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a control panel, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0111] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for partial discharge testing of switch cabinets.

[0112] In some embodiments, the method switch cabinet partial discharge test can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method switch cabinet partial discharge test described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the method switch cabinet partial discharge test in any other appropriate manner (for example, by means of firmware).

[0113] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0114] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0115] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0116] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a control panel and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0117] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0118] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0119] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0120] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch cabinet partial discharge test method, characterized in that: include: Receiving a test task instruction for at least one switch cabinet to be tested sent by a switch cabinet partial discharge test system, wherein the test task instruction includes an identifier of the switch cabinet to be tested, a position of the switch cabinet to be tested, and a test type, and the test type includes an ultrasonic test and a geomagnetic wave test; Based on the test task instructions, ultrasonic testing and geomagnetic wave testing are performed on at least one switch cabinet to be tested to obtain switch cabinet test data to be analyzed. For each switch cabinet to be tested, the test result corresponding to the switch cabinet to be tested is determined based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

2. The method according to claim 1, characterized in that The performing ultrasonic testing on at least one switch cabinet to be tested based on the test task instruction includes: For each of the switch cabinets to be tested, determine a test sequence corresponding to the switch cabinet to be tested based on the switch cabinet identifier to be tested and the position of the switch cabinet to be tested, and perform an ultrasonic test on the switch cabinet to be tested based on the test sequence to obtain ultrasonic test data; Determine an ultrasonic difference between the ultrasonic test data and preset standard ultrasonic test data, and store the ultrasonic test data if the absolute value of the ultrasonic difference is not greater than a preset ultrasonic threshold value; The preset ultrasonic threshold is determined according to the ambient temperature data and / or ambient humidity data of the environment in which the switch cabinet to be tested is located.

3. The method according to claim 2, characterized in that The determining of the ultrasonic difference between the ultrasonic test data and the preset standard ultrasonic test data also includes: When the absolute value of the ultrasonic difference corresponding to the switch cabinet to be tested is greater than a preset ultrasonic threshold, generating first abnormal prompt information, and displaying the first abnormal prompt information in a preset prompting manner; Among them, the preset prompting method includes displaying the abnormal prompting information through the switch cabinet partial discharge testing device and / or playing the abnormal prompting information through the switch cabinet partial discharge testing device.

4. The method according to claim 2, characterized in that: The performing a geomagnetic wave test on at least one switch cabinet to be tested based on the test task instruction comprises: After completing the ultrasonic test on all the switch cabinets to be tested, for each of the switch cabinets to be tested, performing a geomagnetic wave test on the switch cabinet to be tested to obtain geomagnetic wave test data; When the ground wave test data is greater than a preset ground wave threshold, second abnormal prompt information is generated based on the ground wave test data, the ultrasonic test data and the preset test threshold.

5. The method according to claim 1, characterized in that Also includes: When a retest task instruction sent by the switch cabinet partial discharge test device is received, at least one switch cabinet to be tested is retested based on the retest task instruction.

6. The method according to claim 1, characterized in that Before testing at least one switch cabinet to be tested based on the test task instruction, the method further includes: Acquire test environment data and switch cabinet parameters corresponding to the switch cabinet to be tested, wherein the test environment data includes ambient temperature data and / or ambient humidity data, and the switch cabinet parameters include switch cabinet model and / or rated current.

7. The method according to claim 1, characterized in that After determining the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed, the method further includes: A test report is generated based on the switch cabinet identification to be tested, the switch cabinet location to be tested, the test type, the switch cabinet test data to be analyzed and the test result of at least one switch cabinet to be tested.

8. A switch cabinet partial discharge test device, characterized in that: include: A test instruction receiving module, used to receive a test task instruction for at least one switch cabinet to be tested, sent by a switch cabinet partial discharge test system, wherein the test task instruction includes an identification of the switch cabinet to be tested, a position of the switch cabinet to be tested, and a test type, and the test type includes an ultrasonic test and a geomagnetic wave test; A testing module is used to perform ultrasonic testing and geomagnetic wave testing on at least one switch cabinet to be tested based on the test task instructions to obtain switch cabinet test data to be analyzed, and for each switch cabinet to be tested, determine the test result corresponding to the switch cabinet to be tested based on the historical switch cabinet test data of the switch cabinet to be tested and the switch cabinet test data to be analyzed.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the switch cabinet partial discharge testing method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the switch cabinet partial discharge testing method according to any one of claims 1 to 7 when executed.

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