Primary and secondary fusion pole EVT deployment detection method and system

Abstract

The invention belongs to the technical field of electrical component detection, and discloses a primary and secondary fusion pole EVT deployment detection method and system, and the method comprises the steps: judging whether a high-voltage capacitance value of a primary and secondary fusion pole meets a preset EVT precision standard or not, and calculating a required low-voltage capacitance parameter if the high-voltage capacitance value of the primary and secondary fusion pole meets the preset EVT precision standard; selecting and connecting corresponding low-voltage capacitors according to the low-voltage capacitor parameters; eVT transformation ratio precision testing is carried out on the connected pole columns, and an actually-configured low-voltage capacitance value and testing data are obtained; whether the actually-configured low-voltage capacitance value and the test data meet the preset EVT precision standard or not is judged, and if yes, the low-voltage capacitance value and the test data are stored while the low-voltage capacitance value and the test data are assembled and sealed; and re-measuring the EVT transformation ratio precision of the low-voltage capacitor after glue sealing. According to the method, efficient calculation, analysis and judgment of primary and secondary fusion pole EVT deployment detection are realized, the process time is effectively shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical component detection, and in particular relates to a method and system for detecting a primary-secondary fused pole EVT. Background Art

[0002] The primary and secondary fusion pole is mainly used for the primary and secondary fusion complete set of pole-mounted circuit breakers in the current industry. It is a new type of pole product that integrates primary power supply and secondary signal acquisition and control. Compared with traditional poles, the primary and secondary fusion poles have added current and voltage signal acquisition modules and energy acquisition modules. The primary end CT, PT and various wiring ports need to be uniformly epoxy APG injection molded with the vacuum interrupter and the outlet end. After the pole is formed, the secondary end low-voltage capacitor needs to be matched, sealed and tested according to the designed EVT (electronic voltage transformer) ratio accuracy error. Whether it is the simple deployment and detection device built with instruments such as six-and-a-half-digit multimeters and handheld power frequency detectors in the early days or the purchased complete set of electronic transformer calibration devices, they can only meet the production of samples. The efficiency for mass production is too low and the output rate cannot be guaranteed.

[0003] The Chinese patent publication number is CN110554270A, and the name is a patent application for a power capacitor test line measurement and control system. The system includes a low-voltage capacitance meter module connected in sequence, an AC withstand voltage module for pole-to-shell AC withstand voltage test, a DC withstand voltage module for inter-pole withstand voltage test and fuse discharge test, a series resonance module for inter-pole AC withstand voltage test and partial discharge test during voltage step-up and step-down, a low-voltage high-resistance meter module for measuring discharge resistance, and a data processing subsystem for comparing the test data with the standard value in the database after the test is completed to judge whether it is qualified or unqualified; the power capacitor is tested for factory delivery through low-voltage test before the test, power-frequency withstand voltage test for pole-to-shell, partial discharge test test, inter-pole DC fuse discharge test, inter-pole DC fuse discharge test, and low-voltage fuse measurement test after the test, which has the advantage of accurately detecting unqualified power capacitors. However, this patent application cannot solve the problem of deployment and detection of secondary fusion pole EVT. Summary of the invention

[0004] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a method and system for adjusting and detecting a primary-secondary fused pole EVT. By judging whether the high-voltage capacitance value of the primary-secondary fused pole meets the preset EVT accuracy standard, multiple inspections are set so that the entire adjustment and detection process is monitored by a preset program, thereby effectively avoiding the misjudgment and outflow of unqualified products.

[0005] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, the present invention provides a method for deploying and detecting a primary-secondary fused pole EVT, comprising the following steps: S1: Determine whether the high-voltage capacitance value of the primary and secondary fusion poles meets the preset EVT accuracy standard. If so, calculate the required low-voltage capacitance parameters; S2: Select the corresponding low-voltage capacitor according to the low-voltage capacitor parameters and connect them; S3: Perform EVT ratio accuracy test on the connected poles to obtain the actual low-voltage capacitance value and test data; S4: Determine whether the low-voltage capacitance value and test data actually matched meet the preset EVT accuracy standard. If qualified, the low-voltage capacitance is assembled and sealed and the low-voltage capacitance value and test data are saved. S5: Re-test the EVT ratio accuracy of the low-voltage capacitor after glue sealing.

[0006] Optionally, in step S1, the primary and secondary fusion pole has a tube number identification code, and the tube number of the primary and secondary fusion pole is input by scanning the code.

[0007] Optionally, in step S4, if it is determined to be unqualified, a deferred capacitor is reselected.

[0008] Optionally, in step S4, if it is determined to be unqualified, the capacitance parameters are adjusted according to the unqualified characteristics, and the matching test is re-performed until the system determines that it is qualified.

[0009] Optionally, in step S5, if the EVT ratio accuracy is unqualified, retesting is performed after checking and confirming the unqualified features.

[0010] Optionally, in step S1, VBA programming is used to calculate the required low-voltage capacitor parameters according to the input high-voltage capacitor parameters and the accuracy standard of product design.

[0011] Optionally, in step S1, the required low-voltage capacitor parameter calculation formula is:

[0012] Among them, Cr is the theoretical low-voltage capacitance value, C R is the measured high voltage capacitance value, and K is the coefficient calculated based on the product design standard.

[0013] In a second aspect, the present invention provides a deployment detection system for a primary-secondary fused pole EVT, which is used for detecting the deployment detection method of the primary-secondary fused pole EVT.

[0014] Optionally, the deployment and detection system of the primary and secondary fusion pole EVT adopts VBA programming.

[0015] Optionally, the deployment and detection system of the primary and secondary fused pole EVT includes a deployment and preservation module, a retest and preservation module and a retest unqualified module; the deployment and preservation module is used for calculation and processing of process data, comparative analysis and judgment of test results, feedback of deployment data and problem analysis, and extraction and preservation of deployment data; the retest and preservation module is used for comparative analysis and judgment of test results, feedback of test data and problem analysis, and extraction and preservation of test data; the retest and preservation module is used for extraction and preservation of test data and unqualified information of the system and extraction and preservation of unqualified data.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a system and method for the deployment and detection of a primary and secondary fused pole EVT. The operator does not need to be familiar with programming and EVT-related knowledge, and only needs to follow simple step-by-step operations to complete the deployment and detection of the EVT. In the processing flow, the present invention sets multiple inspection functions, and the entire deployment and detection process is monitored by a preset program, which effectively avoids the misjudgment and outflow of unqualified products. Efficient calculation, analysis and judgment of the deployment and detection of the primary and secondary fused pole EVT are achieved, effectively shortening the process time and improving production efficiency; at the same time, the problem of human error in manual calculation and visual comparison judgment is avoided.

[0017] Furthermore, the present invention uses VBA to build a deployment detection system based on the primary and secondary integration of the pole EVT deployment detection process, so that the operation steps of the pole deployment detection are organically combined, and VBA is used to embed functions, formulas, data comparison and analysis modules, and detection result judgment modules, so that a large amount of calculations, detection data comparison and judgment, and repetitive work are automatically completed by the system. Only simple anti-foolproof operations are required to complete the deployment detection of the pole EVT, which greatly improves production efficiency and ensures the deployment detection task of pole mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings: Figure 1 The figure is a flowchart of the method of the present invention.

[0019] Figure 2 This is a schematic diagram of process parameter input used by the detection system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions 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.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] When an element is referred to as being "disposed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiments. If the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but it can be slightly tilted.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In the description of the present invention, it is understood that the terms "include" and "comprise" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular forms of "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0026] The present invention is described in detail below with reference to the accompanying drawings.

[0027] A method for adjusting and detecting a primary-secondary fusion pole EVT of the present invention comprises the following steps: S1: Determine whether the high-voltage capacitance value of the primary and secondary fusion poles meets the preset EVT accuracy standard. If so, calculate the required low-voltage capacitance parameters; S2: Select the corresponding low-voltage capacitor according to the low-voltage capacitor parameters and connect them; S3: Perform EVT ratio accuracy test on the connected poles to obtain the actual low-voltage capacitance value and test data; S4: Determine whether the low-voltage capacitance value and test data actually matched meet the preset EVT accuracy standard. If qualified, the low-voltage capacitance is assembled and sealed and the low-voltage capacitance value and test data are saved. S5: Re-test the EVT ratio accuracy of the low-voltage capacitor after glue sealing.

[0028] The present invention discloses a deployment detection system for a primary-secondary fused pole EVT, which is used for detecting the deployment detection method for the primary-secondary fused pole EVT.

[0029] The present invention does not require the operator to be familiar with programming and EVT related knowledge, and only needs to follow the steps to complete the EVT deployment and detection work. In the processing flow, the present invention sets multiple inspection functions, and the entire deployment and detection process is monitored by a preset program, which effectively avoids the misjudgment and outflow of unqualified products. Efficient calculation, analysis and judgment of the EVT deployment and detection of primary and secondary fusion poles are achieved, effectively shortening the process time and improving production efficiency; at the same time, it avoids the problem of human errors in manual calculation and visual comparison.

[0030] Example 1 Step S1: input the primary and secondary fusion pole EVT accuracy standard through the deployment detection system, and enter the high-voltage capacitance value; and feedback the matching low-voltage capacitance parameters through the deployment detection system.

[0031] First, scan the product identification code; enter the high-voltage capacitance value of the product; the system calculates and feeds back the low-voltage capacitance value. The calculation formula is as follows:

[0032] Among them, Cr is the theoretical low-voltage capacitance value, C R is the measured high voltage capacitance value, and K is the coefficient calculated based on the product design standard.

[0033] Optionally, the deployment detection system is a host or a mobile device. Further, the deployment detection system adopts VBA programming, embeds calculation formulas through VBA programming, and calculates the low-voltage capacitor parameters to be deployed according to the input high-voltage capacitor parameters.

[0034] Step S2: Select a suitable low-voltage capacitor for connection according to the feedback from the deployment detection system.

[0035] Step S3: Perform an EVT ratio accuracy test on the connected poles, input the actual low-voltage capacitance value and test data, and save them through the deployment saving module of the deployment detection system.

[0036] The system of the present invention can satisfy the use of two detection devices: The first is the recommended detection system built using a 5.5-digit multimeter and an industrial frequency tester; the second is an electronic transformer tester. The details are as follows: During the test, the multimeter value is read and input into the system. The system has the following built-in formula to calculate the transformer ratio accuracy. During the test, the transformer tester detection value is read and input into the system.

[0037] *% in, To measure the EVT ratio accuracy, is the standard voltage transformer terminal voltage value, is the voltage value of the test sample terminal; The system performs the following calculation based on the calculated or input transformer ratio accuracy value and the preset transformer accuracy grade (0.5 < grade). If a≤0 and b≥0, it is judged as qualified, and the system extracts the test data and saves it automatically; if a﹥0, it is judged as unqualified, and the feedback low-voltage capacitance is too small. Please adjust it and retest it; if b﹤0, it is judged as unqualified, and the feedback low-voltage capacitance is too large. Please adjust it and retest it.

[0038]

[0039]

[0040] in , Two variables are set within the program to determine abnormal analysis results.

[0041] The operator adjusts the capacitor parameters according to the prompts and re-matches the test until the system determines that it is qualified. After the adjustment is qualified, the low-voltage capacitor is assembled and sealed.

[0042] in, is the theoretical EVT ratio accuracy, is the standard voltage transformer terminal voltage value, is the voltage value at the test sample end; a coefficient calculated based on product design standards.

[0043] Step S4: Scan the primary and secondary fusion pole identification code to detect the EVT ratio accuracy (the detection method is the same as step S3). The retest and save module automatically searches and retrieves the deployment data in the deployment data according to the identification code. If it cannot match, it will feedback that "the product has no deployment data and cannot be retested"; and analyze and judge the deployment test data, retest test data and product accuracy standard (0.5 level) and save the test results. If it is unqualified, it will feedback abnormality and terminate the saving. Among them, the primary and secondary fusion pole tube number is scanned and input by the identification code.

[0044] If the operator is prompted to retest after checking and confirming, if the check and confirmation are correct, the information will be saved through the retest saving module. If it is judged to be unqualified, the unqualified characteristics will be fed back. If it is still judged to be unqualified, the unqualified information will be saved through the retest unqualified module and fed back to the technician for processing.

[0045] The deployment and preservation module includes a data processing module, a result verification module, an information interaction module and a deployment data extraction and preservation module, which are used to realize the calculation and processing of process data, the comparative analysis and judgment of test results, the feedback of deployment data and problem analysis, and the extraction and preservation of deployment data.

[0046] The retest storage module includes a result verification module, an information interaction module and a test data extraction and storage module, which are used to realize the comparative analysis and judgment of the test results, the feedback of the test data and problem analysis, and the extraction and storage of the test data.

[0047] The retest failure module can shield the system's failure information and extract and save the failure data for in-depth analysis by technical personnel.

[0048] Aiming at the problems that the deployment and detection process of the EVT of the fusion pole of primary and secondary is complicated, a large number of tedious calculations are required in the deployment process, the workload is large, the manual calculation, the comparison efficiency is low and the error rate is high, and the mass production demand cannot be met, the present invention proposes a deployment and detection system of the EVT of the fusion pole of primary and secondary. Firstly, the pole identification code is scanned in, the pole high-voltage capacitance value is input, and the theoretical parameters of the low-voltage capacitor matched with the pole are automatically calculated by embedding the built-in function through VBA programming, and the actual matching low-voltage capacitance range is given for the operator to refer to and select the low-voltage capacitor. After the selection, the EVT precision detection is performed, the detection value is input, and the deployment and saving module is started. The system will perform operations including data calculation and processing, test result comparison and analysis, information feedback, and data extraction and saving. During the operation, the abnormal information in the processing process is fed back through the msgbox function for the operator to analyze and adjust. After confirmation, the deployment data is extracted and saved.

[0049] Scan the pole identification code, input the EVT precision retest results, compare and analyze the test results through the retest saving module, and judge them. If qualified, extract the data for saving. If unqualified, feedback abnormal information through the msgbox function and terminate the retest saving operation. The operator adjusts the retest and resaves according to the system feedback. The whole operation process only requires simple input to get the deployment test results, realizing the efficient calculation, analysis and judgment of the primary and secondary fusion pole EVT deployment detection, effectively shortening the process time and improving production efficiency; at the same time, it avoids the problem of human error in manual calculation and visual comparison.

[0050] The present invention first scans the pole identification code, inputs the pole high-voltage capacitance value, and automatically calculates the theoretical parameters of the low-voltage capacitor matched by the pole through VBA programming embedded built-in functions, and gives the actual matching low-voltage capacitance range for the operator to refer to and select the low-voltage capacitor. After selection, EVT precision detection is performed, the detection value is input, and the deployment and preservation module is started. The system will perform operations including data calculation processing, test result comparison and analysis, information feedback, data extraction and preservation, etc. During the operation, the abnormal information in the processing process is fed back by the msgbox function for the operator to analyze and adjust, and the deployment data is extracted and saved after confirmation. Scan the pole identification code, input the EVT precision retest result, start the retest and preservation module, the system compares and analyzes the test results, judges, and extracts the data for preservation if qualified, and feeds back the abnormal information and terminates the retest and preservation operation through the msgbox function if unqualified. The operator adjusts the retest and saves again according to the system feedback. The entire operation process only needs simple input and activation of the corresponding module to obtain the deployment detection result.

[0051] Example 2 In this embodiment, the deployment and detection system is a host or mobile device with Excel.

[0052] A deployment detection system of a primary and secondary fusion pole EVT of this embodiment, such as Figure 1 As shown, the following steps are included: Step S1: Input the high-voltage capacitor parameters of the pole EVT in Excel: The system determines the high-voltage capacitor parameters according to the preset design standards. The next step can be performed only after the parameters are qualified. If the parameters are unqualified, the unqualified information will be fed back and the execution will be terminated; Step S2: The system calculates the low-voltage capacitor parameters that should be matched according to the preset design standards and internal control requirements, and feeds back to the operator; Step S3: After the operator selects the low-voltage capacitor according to the system feedback, detects the pole EVT accuracy, inputs the test value, and starts the deployment and saving module. After the system analyzes and determines the integrity and accuracy of the deployment data according to the set requirements, it extracts the data and saves it. During the analysis, the abnormal information is fed back through the dialog box for the operator to analyze and correct; Step S4: Assembling the low voltage capacitor with glue seal; Step S5: Retest the pole EVT parameters, scan the pole identification code, the system retrieves the pole allocation data, inputs the retest value, clicks the retest save module, the system automatically compares and determines, and extracts the data for saving; This embodiment uses the powerful computing power of EXCEL and the VBA language to control EXCEL, allowing the computer to automatically complete the tedious and repetitive calculations, visual comparison and judgment, and data extraction and storage in the production process, thereby achieving the need for fool-proof production and at least doubling the production efficiency.

[0053] Example 3 as follows Figure 1 , scan the tube number, input the high-voltage capacitance value, the actual matching high-voltage capacitance value and the multimeter reading or the calibration instrument reading, and then extract the data of the interface for saving after the calculation is determined to be qualified through the deployment and preservation module, and clear the relevant data of the operation interface at the same time ( Figure 2 ).

[0054] If the actual matching low-voltage capacitance value is significantly different from the theoretical low-voltage capacitance value and exceeds the preset control standard, the system will provide feedback after checking and stop saving. The interface data will remain unchanged. After the operator reselects the low-voltage capacitance adjustment, it will be tested again through the adjustment and saving module. After the system rechecks and finds no errors, it will extract the data and save it. Similarly, if the input transformer accuracy test result is not within the preset control standard, the system will also provide feedback after checking and analyzing.

[0055] Unless otherwise specified, the device elements involved in the above embodiments are all conventional device elements, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for deploying and detecting a primary and secondary fusion pole EVT, characterized in that: The following steps are involved: S1: Determine whether the high-voltage capacitance value of the primary and secondary fusion poles meets the preset EVT accuracy standard. If so, calculate the required low-voltage capacitance parameters; S2: Select the corresponding low-voltage capacitor according to the low-voltage capacitor parameters and connect them; S3: Perform EVT ratio accuracy test on the connected poles to obtain the actual low-voltage capacitance value and test data; S4: Determine whether the low-voltage capacitance value and test data actually matched meet the preset EVT accuracy standard. If qualified, the low-voltage capacitance is assembled and sealed and the low-voltage capacitance value and test data are saved. S5: Re-test the EVT ratio accuracy of the low-voltage capacitor after glue sealing.

2. The method for deploying and detecting a primary and secondary fusion pole EVT according to claim 1 is characterized in that: In step S1, the primary and secondary fusion pole has a tube number identification code, and the tube number of the primary and secondary fusion pole is input by scanning the code.

3. The method for deploying and detecting a primary-secondary fusion pole EVT according to claim 1 is characterized in that: In step S4, if it is determined to be unqualified, a deferred capacitor is reselected.

4. The method for deploying and detecting a primary-secondary fusion pole EVT according to claim 1 is characterized in that: In step S4, if it is determined to be unqualified, the capacitance parameters are adjusted according to the unqualified characteristics, and the matching test is re-performed until the system determines that it is qualified.

5. The method for deploying and detecting a primary-secondary fusion pole EVT according to claim 1 is characterized in that: In step S5, if the EVT ratio accuracy is unqualified, the unqualified features are checked and confirmed, and then the test is repeated.

6. The method for deploying and detecting a primary-secondary fusion pole EVT according to claim 1, characterized in that: In step S1, the required low-voltage capacitor parameters are calculated according to the input high-voltage capacitor parameters and the accuracy standard of product design through VBA programming.

7. The method for deploying and detecting a primary-secondary fusion pole EVT according to claim 1 is characterized in that: In step S1, the required low voltage capacitor parameter calculation formula is: Among them, Cr is the theoretical low-voltage capacitance value, C R is the measured high voltage capacitance value, and K is the coefficient calculated based on the product design standard.

8. A deployment and detection system for a primary and secondary fusion pole EVT, characterized in that: Used for detection of the deployment detection method of the primary and secondary fused pole EVT as described in any one of claims 1 to 7.

9. The deployment and detection system of the primary and secondary fusion pole EVT according to claim 8 is characterized in that: The deployment and detection system of the primary and secondary fusion pole EVT adopts VBA programming.

10. The deployment and detection system of the primary and secondary fusion pole EVT according to claim 8, characterized in that: The deployment and detection system of the primary and secondary fused pole EVT includes a deployment and preservation module, a retest and preservation module and a retest unqualified module; the deployment and preservation module is used for calculation and processing of process data, comparative analysis and judgment of test results, feedback of deployment data and problem analysis, and extraction and preservation of deployment data; the retest and preservation module is used for comparative analysis and judgment of test results, feedback of test data and problem analysis, and extraction and preservation of test data; the retest and preservation module is used for shielding the system's unqualified information and extracting and preserving unqualified data.

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