Electronic transformer test system and test method

Abstract

The invention relates to the technical field of electronic mutual inductor testing, and discloses an electronic mutual inductor testing system and method. The electronic mutual inductor testing system comprises an electronic mutual inductor identification unit, a test data acquisition module, a test data analysis module and a test scoring module, the test data acquisition module comprises a temperature characteristic test data acquisition unit, a load characteristic test data acquisition unit and an insulation strength test data acquisition unit. According to the system, temperature performance data of the currently measured electronic transformer under different temperature conditions are collected, and load characteristic data output by the electronic transformer under full load and no-load conditions are respectively calculated and analyzed to obtain temperature performance analysis data and load characteristic analysis data; and finally obtaining a test score of the currently tested electronic transformer by combining insulation strength test data obtained by the insulation test, and judging whether the electronic transformer is qualified or not according to the score so as to assist a worker in rapidly detecting the electronic transformer.

Description

Technical Field

[0001] The invention relates to the technical field of electronic transformer testing, in particular to an electronic transformer testing system and a testing method. Background Art

[0002] Electronic transformer is an advanced power system primary current and voltage acquisition device. At the same time, due to its structural principle, electronic transformer uses a large number of optical and electronic devices, which are very susceptible to temperature changes, resulting in degradation of its measurement accuracy and other performance. In the current type test, performance test and field application, when facing the test of a large number of electronic transformers in the same batch, the staff needs to enter the data one by one for calculation and judge whether it is qualified, which leads to low test efficiency. This detection method can no longer meet the detection requirements. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides an electronic transformer testing system and a testing method, which have the advantages of rapid testing and the like, and solve the above-mentioned technical problems.

[0005] (II) Technical solution

[0006] To achieve the above object, the present invention provides the following technical solution: an electronic transformer test system, comprising an electronic transformer identification unit, a test data acquisition module, a test data analysis module and a test scoring module;

[0007] The electronic transformer identification unit is used to identify the model of the electronic transformer currently being tested, obtain the test standard of the electronic transformer currently being tested, and send the model of the electronic transformer and the test standard of the electronic transformer to the test data acquisition module to perform corresponding tests;

[0008] The test data acquisition module includes a temperature characteristic test data acquisition unit, a load characteristic test data acquisition unit and an insulation strength test data acquisition unit. The temperature characteristic test data acquisition unit acquires temperature performance data of the electronic transformer currently being measured under different temperature conditions. The load characteristic test data acquisition unit acquires load characteristic data of the electronic transformer output under full load and no-load conditions. The insulation strength test data acquisition unit acquires insulation strength test data obtained by testing the electronic transformer under standard test values. The test data acquisition module sends the acquired temperature performance data, load characteristic data and insulation strength test data to the test data analysis module.

[0009] The test data analysis module performs calculation and analysis based on the temperature performance data and the load characteristic data and the insulation strength test data to obtain the temperature performance analysis data and the load characteristic analysis data, and the test data analysis module sends the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data to the test scoring module;

[0010] The test scoring module outputs a test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data.

[0011] As a preferred technical solution of the present invention, the electronic transformer identification unit is used to identify the model of the electronic transformer currently being tested, and the specific steps of obtaining the test standard of the electronic transformer currently being tested are as follows:

[0012] Step A1: searching the input model of the electronic transformer in the storage database of the electronic transformer identification unit;

[0013] Step A2: If the input electronic transformer model exists in the storage database, the test standard of the electronic transformer currently being tested is read, and the model of the electronic transformer and the test standard of the electronic transformer are sent to the test data acquisition module to perform the corresponding test. If the input electronic transformer model does not exist in the storage database, step A3 is executed;

[0014] Step A3: The test standard of the electronic transformer input by the staff is used as the test standard of the electronic transformer currently being tested, and the model of the electronic transformer and the test standard of the electronic transformer are stored at the same time, and the model of the electronic transformer and the test standard of the electronic transformer are sent to the test data acquisition module to perform corresponding tests.

[0015] As a preferred technical solution of the present invention, the expression for collecting the temperature performance data of the electronic transformer under different temperature conditions currently being measured by the temperature characteristic test data acquisition unit is as follows:

[0016] WDXN=[SCZ1,…,SCZ n ,…,SCZ N ]

[0017] Among them, SCZ1,…,SCZ n ,...,SCZ N They respectively represent the output value of the electronic transformer under the 1st temperature condition, ..., the output value under the nth temperature condition, ..., the output value under the Nth temperature condition, and WDXN represents the temperature performance data set.

[0018] As a preferred technical solution of the present invention, the test data analysis module performs calculation and analysis based on the temperature performance data, and obtains the specific expression of the temperature performance analysis data as follows:

[0019]

[0020] Among them, WFSX represents the temperature performance analysis data, SCZ0 represents the test standard value of the output value in the test standard of the electronic transformer currently being tested, max[SCZ1,…,SCZ n ,…,SCZ N ] means SCZ1,…,SCZ n ,…,SCZ N The maximum value among them, min[SCZ1,…,SCZ n ,…,SCZ N ] means SCZ1,...,SCZ n ,…,SCZ N The minimum value in , |*| indicates the absolute value.

[0021] As a preferred technical solution of the present invention, the load characteristic test data acquisition unit acquires the load characteristic data of the output of the electronic transformer under full load and no-load conditions, and the specific expression is as follows:

[0022]

[0023] Among them, FZTX represents the load characteristic data set, MZSCZ1,…,MZSCZ i ,…,MZSCZ I KZSCZ1,…,KZSCZ2 respectively represent the output value of the electronic transformer during the first full load test,…, the output value of the electronic transformer during the i-th full load test,…, the output value of the electronic transformer during the I-th full load test, KZSCZ1,…,KZSCZ i ,…,KZSCZ I They respectively represent the output value of the electronic transformer during the first no-load test,…, the output value of the electronic transformer during the i-th no-load test,…, the output value of the electronic transformer during the I-th no-load test.

[0024] As a preferred technical solution of the present invention, the test data analysis module performs calculation and analysis based on the load characteristic data, and obtains the expression of the load characteristic analysis data as follows:

[0025]

[0026] Among them, FZFX represents load characteristic analysis data, MZSCZ iIndicates the output value of the electronic transformer during the i-th full load test, KZSCZ i It represents the output value of the electronic transformer during the i-th no-load test. MZSCZ0 represents the full-load standard value, and KZSCZ0 represents the no-load standard value.

[0027] As a preferred technical solution of the present invention, the insulation strength test data acquisition unit acquires the insulation strength test data obtained by testing the electronic transformer under the standard test value. Wherein JYQD=1 indicates that the insulation strength test has been passed, and JYQD=0 indicates that the insulation strength test has not been passed.

[0028] As a preferred technical solution of the present invention, the specific steps of the test scoring module outputting the test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data are as follows:

[0029] Step B1: Determine the insulation strength test data JYQD. If JYQD=1, execute step B2. If JYQD=0, terminate step B1 and output unqualified.

[0030] Step B2: Output the test score of the electronic transformer currently being tested.

[0031] As a preferred technical solution of the present invention, the specific expression for outputting the test score of the electronic transformer currently being tested in step B2 is as follows:

[0032] CSPJ=WFSX+FZSX

[0033] Among them, FZFX represents load characteristic analysis data, WFSX represents temperature performance analysis data, and CSPJ represents test score.

[0034] The present invention also provides an electronic transformer testing method, based on the above-mentioned electronic transformer testing system, comprising the following steps:

[0035] Step 1: Identify the model of the electronic transformer currently being tested and obtain the test standard of the electronic transformer currently being tested;

[0036] Step 2: Collecting temperature performance data of the electronic transformer currently being measured under different temperature conditions;

[0037] Step 3: Collecting load characteristic data of the output of the electronic transformer under full load and no-load conditions;

[0038] Step 4: The collection unit collects the insulation strength test data obtained by testing the electronic transformer under the standard test value;

[0039] Step 5: Calculate and analyze the insulation strength test data based on the temperature performance data and the load characteristic data to obtain temperature performance analysis data and load characteristic analysis data;

[0040] Step 6: Output the test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data.

[0041] Compared with the prior art, the present invention provides an electronic transformer testing system and a testing method, which have the following beneficial effects:

[0042] The present invention collects temperature performance data of an electronic transformer currently being measured under different temperature conditions, calculates and analyzes load characteristic data of the electronic transformer output under full load and no-load conditions, obtains temperature performance analysis data and load characteristic analysis data, and combines the insulation strength test data obtained by the insulation test to finally obtain a test score of the electronic transformer currently being tested, and determines whether it is qualified based on the score, thereby assisting staff in the process of quickly detecting the electronic transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the system framework of the present invention;

[0044] Figure 2 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0046] See also Figure 1 - Figure 2 , an electronic transformer test system, including an electronic transformer identification unit, a test data acquisition module, a test data analysis module and a test scoring module;

[0047] The electronic transformer identification unit is used to identify the model of the electronic transformer currently being tested, obtain the test standard of the electronic transformer currently being tested, and send the model of the electronic transformer and the test standard of the electronic transformer to the test data acquisition module to perform corresponding tests. The electronic transformer identification unit is used to identify the model of the electronic transformer currently being tested, and obtain the test standard of the electronic transformer currently being tested. The process is: search for the input electronic transformer model in the electronic transformer identification unit storage database, if the input electronic transformer exists in the storage database model, read the test standard of the electronic transformer currently being tested, and send the model of the electronic transformer and the test standard of the electronic transformer to the test data acquisition module to perform corresponding tests. If the model of the input electronic transformer does not exist in the storage database, the test standard of the electronic transformer input by the staff is used as the test standard of the electronic transformer currently being tested, and the model of the electronic transformer and the test standard of the electronic transformer are stored at the same time, and the model of the electronic transformer and the test standard of the electronic transformer are sent to the test data acquisition module to perform corresponding tests;

[0048] The test data acquisition module includes a temperature characteristic test data acquisition unit, a load characteristic test data acquisition unit and an insulation strength test data acquisition unit. The temperature characteristic test data acquisition unit acquires the temperature performance data of the electronic transformer currently being measured under different temperature conditions.

[0049] The load characteristic test data acquisition unit acquires the load characteristic data of the output of the electronic transformer under full load and no-load conditions;

[0050] The insulation strength test data acquisition unit acquires the insulation strength test data obtained by testing the electronic transformer under the standard test value, and the test data acquisition module sends the acquired temperature performance data, load characteristic data and insulation strength test data to the test data analysis module;

[0051] The test data analysis module calculates and analyzes the temperature performance data and the load characteristic data and the insulation strength test data respectively to obtain the temperature performance analysis data and the load characteristic analysis data. The test data analysis module sends the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data to the test scoring module. The temperature characteristic test data acquisition unit acquires the temperature performance data of the electronic transformer currently being measured under different temperature conditions. The expression is as follows:

[0052] WDXN=[SCZ1,…,SCZ n ,…,SCZ N ]

[0053] Among them, SCZ1,…,SCZ n ,…,SCZ N They represent the output value of the electronic transformer under the first temperature condition, ..., the output value under the nth temperature condition, ..., the output value under the Nth temperature condition, WDXN represents the temperature performance data set, and the test data analysis module performs calculation and analysis based on the temperature performance data to obtain the specific expression of the temperature performance analysis data as follows:

[0054]

[0055] Among them, WFSX represents the temperature performance analysis data, SCZ0 represents the test standard value of the output value in the test standard of the electronic transformer currently being tested, max[SCZ1,…,SCZ n ,…,SCZ N ] means SCZ1,…,SCZ N ,…,SCZ N The maximum value among them, min[SCZ1,…,SCZ n ,…,SCZ N ] means SCZ1,…,SCZ n ,…,SCZ N The minimum value in, |*| represents the absolute value, the load characteristic test data acquisition unit collects the load characteristic data of the electronic transformer under full load and no-load conditions, and the specific expression of the load characteristic data of the electronic transformer output is as follows:

[0056]

[0057] Among them, FZTX represents the load characteristic data set, MZSCZ1,…,MZSCZ i ,…,MZSCZ I KZSCZ1,…,KZSCZ2 respectively represent the output value of the electronic transformer during the first full load test,…, the output value of the electronic transformer during the i-th full load test,…, the output value of the electronic transformer during the I-th full load test, KZSCZ1,…,KZSCZ i ,…,KZSCZ I They respectively represent the output value of the electronic transformer during the first no-load test, ..., the output value of the electronic transformer during the i-th no-load test, ..., the output value of the electronic transformer during the I-th no-load test. The test data analysis module performs calculation and analysis based on the load characteristic data, and obtains the expression of the load characteristic analysis data as follows:

[0058]

[0059] Among them, FZFX represents load characteristic analysis data, MZSCZ i Indicates the output value of the electronic transformer during the i-th full load test, KZSCZ i Indicates the output value of the electronic transformer during the no-load test for the i-th time. MZSCZ0 indicates the full-load standard value, KZSCZ0 indicates the no-load standard value. The insulation strength test data acquisition unit collects the insulation strength test data obtained by testing the electronic transformer under the standard test value. Where JYQD = 1 means passing the insulation strength test, and JYQD = 0 means failing the insulation strength test;

[0060] The test scoring module outputs the test score of the electronic transformer currently being tested based on the temperature performance analysis data, load characteristic analysis data and insulation strength test data. First, the insulation strength test data JYQD is judged. If JYQD=1, CSPJ=WFSX+FZFX is calculated. If JYQD=0, it is output as unqualified.

[0061] Among them, FZFX represents load characteristic analysis data, WFSX represents temperature performance analysis data, and CSPJ represents test score.

[0062] Embodiment 1:

[0063] The specific data for the experiment on electronic transformer are as follows:

[0064] The insulation strength test data acquisition unit acquires the insulation strength test data of the electronic transformer under the standard test value. JYQD=1, WDXN=[5.0,4.3,4.2,5.1,4.9], SCZ0=5, max[5.0,4.95,4.8,5.1,4.9]=5.1, min[5.0,4.95,4.8,5.1,4.9]=4.8,

[0065]

[0066] At this time, CSPJ=WFSX+FZFX=0.06+0.028=0.034

[0067] Embodiment 2:

[0068] The specific data for the experiment on electronic transformer are as follows:

[0069] The insulation strength test data acquisition unit acquires the insulation strength test data JYQD=0 obtained by testing the electronic transformer under the standard test value, and outputs unqualified at this time;

[0070] The present invention also provides an electronic transformer testing method, based on the above-mentioned electronic transformer testing system, comprising the following steps:

[0071] Step 1: Identify the model of the electronic transformer currently being tested and obtain the test standard of the electronic transformer currently being tested;

[0072] Step 2: Collecting temperature performance data of the electronic transformer currently being measured under different temperature conditions;

[0073] Step 3: Collecting load characteristic data of the output of the electronic transformer under full load and no-load conditions;

[0074] Step 4: The collection unit collects the insulation strength test data obtained by testing the electronic transformer under the standard test value;

[0075] Step 5: Calculate and analyze the insulation strength test data based on the temperature performance data and the load characteristic data to obtain temperature performance analysis data and load characteristic analysis data;

[0076] Step 6: Output the test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Electronic transformer test system, characterized by: It includes an electronic transformer identification unit, a test data acquisition module, a test data analysis module and a test scoring module; The electronic transformer identification unit is used to identify the model of the electronic transformer currently being tested, obtain the test standard of the electronic transformer currently being tested, and send the model of the electronic transformer and the test standard of the electronic transformer to the test data acquisition module to perform corresponding tests; The test data acquisition module includes a temperature characteristic test data acquisition unit, a load characteristic test data acquisition unit and an insulation strength test data acquisition unit. The temperature characteristic test data acquisition unit acquires temperature performance data of the electronic transformer currently being measured under different temperature conditions. The load characteristic test data acquisition unit acquires load characteristic data of the electronic transformer output under full load and no-load conditions. The insulation strength test data acquisition unit acquires insulation strength test data obtained by testing the electronic transformer under standard test values. The test data acquisition module sends the acquired temperature performance data, load characteristic data and insulation strength test data to the test data analysis module. The test data analysis module performs calculation and analysis based on the temperature performance data and the load characteristic data and the insulation strength test data to obtain the temperature performance analysis data and the load characteristic analysis data, and the test data analysis module sends the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data to the test scoring module; The test scoring module outputs a test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data.

2. The electronic transformer test system according to claim 1, characterized in that: The electronic transformer identification unit is used to identify the model of the electronic transformer currently being tested, and the specific steps of obtaining the test standard of the electronic transformer currently being tested are as follows: Step A1: searching the input model of the electronic transformer in the storage database of the electronic transformer identification unit; Step A2: If the input electronic transformer model exists in the storage database, the test standard of the electronic transformer currently being tested is read, and the model of the electronic transformer and the test standard of the electronic transformer are sent to the test data acquisition module to perform the corresponding test. If the input electronic transformer model does not exist in the storage database, step A3 is executed; Step A3: The test standard of the electronic transformer input by the staff is used as the test standard of the electronic transformer currently being tested, and the model of the electronic transformer and the test standard of the electronic transformer are stored at the same time, and the model of the electronic transformer and the test standard of the electronic transformer are sent to the test data acquisition module to perform corresponding tests.

3. The electronic transformer test system according to claim 2, characterized in that: The expression for collecting the temperature performance data of the electronic transformer under different temperature conditions collected by the temperature characteristic test data collection unit is as follows: WDXN=[SCZ1,…,SCZ n ,…,SCZ N ] Among them, SCZ1,…,SCZ n ,…,SCZ N They respectively represent the output value of the electronic transformer under the 1st temperature condition, …, the output value under the nth temperature condition, …, the output value under the Nth temperature condition, and WDXN represents the temperature performance data set.

4. The electronic transformer test system according to claim 3, characterized in that: The test data analysis module performs calculation and analysis based on the temperature performance data, and obtains the specific expression of the temperature performance analysis data as follows: Among them, WFSX represents the temperature performance analysis data, SCZ0 represents the test standard value of the output value in the test standard of the electronic transformer currently being tested, max[SCZ1,…,SCZ n ,…,SCZ N ] means SCZ1,…,SCZ n ,...,SCZ N The maximum value among them, min[SCZ1,…,SCZ n ,…,SCZ N ] means SCZ1,…,SCZ n ,…,SCZ N The minimum value in , |*| indicates the absolute value.

5. The electronic transformer test system according to claim 4, characterized in that: The load characteristic test data acquisition unit acquires the load characteristic data of the output of the electronic transformer under full load and no-load conditions. The specific expression is as follows: Among them, FZTX represents the load characteristic data set, MZSCZ1,…,MZSCZ i ,…,MZSCZ I KZSCZ1,…,KZSCZ2 respectively represent the output value of the electronic transformer during the first full load test,…, the output value of the electronic transformer during the i-th full load test,…, the output value of the electronic transformer during the I-th full load test, KZSCZ1,…,KZSCZ i ,…,KZSCZ I They respectively represent the output value of the electronic transformer during the 1st no-load test, ..., the output value of the electronic transformer during the i-th no-load test, ..., the output value of the electronic transformer during the I-th no-load test.

6. The electronic transformer test system according to claim 5, characterized in that: The test data analysis module performs calculation and analysis based on the load characteristic data, and obtains the expression of the load characteristic analysis data as follows: Among them, FZFX represents load characteristic analysis data, MZSCZ i Indicates the output value of the electronic transformer during the i-th full load test, KZSCZ i It represents the output value of the electronic transformer during the i-th no-load test. MZSCZ0 represents the full-load standard value, and KZSCZ0 represents the no-load standard value.

7. The electronic transformer testing system according to claim 6, characterized in that: The insulation strength test data acquisition unit acquires insulation strength test data obtained by testing the electronic mutual inductor under the standard test value. Wherein JYQD=1 indicates that the insulation strength test has been passed, and JYQD=0 indicates that the insulation strength test has not been passed.

8. The electronic transformer testing system according to claim 7, characterized in that: The specific steps of the test scoring module outputting the test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data are as follows: Step B1: Determine the insulation strength test data JYQD. If JYQD=1, execute step B2. If JYQD=0, terminate step B1 and output unqualified. Step B2: Output the test score of the electronic transformer currently being tested.

9. The electronic transformer testing system according to claim 8, characterized in that: The specific expression for outputting the test score of the electronic transformer currently being tested in step B2 is as follows: CSPJ=WFSX+FZFX Among them, FZFX represents load characteristic analysis data, WFSX represents temperature performance analysis data, and GSPJ represents test score.

10. An electronic transformer testing method, based on an electronic transformer testing system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Identify the model of the electronic transformer currently being tested and obtain the test standard of the electronic transformer currently being tested; Step 2: Collecting temperature performance data of the electronic transformer currently being measured under different temperature conditions; Step 3: Collecting load characteristic data of the output of the electronic transformer under full load and no-load conditions; Step 4: The collection unit collects the insulation strength test data obtained by testing the electronic transformer under the standard test value; Step 5: Calculate and analyze the insulation strength test data based on the temperature performance data and the load characteristic data to obtain temperature performance analysis data and load characteristic analysis data; Step 6: Output the test score of the electronic transformer currently being tested based on the temperature performance analysis data, the load characteristic analysis data and the insulation strength test data.

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