CN113109676B - Electroceramic insulation electric shock test system based on big data - Google Patents
Electroceramic insulation electric shock test system based on big data Download PDFInfo
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- CN113109676B CN113109676B CN202110400210.XA CN202110400210A CN113109676B CN 113109676 B CN113109676 B CN 113109676B CN 202110400210 A CN202110400210 A CN 202110400210A CN 113109676 B CN113109676 B CN 113109676B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
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Abstract
The invention discloses an electroceramic insulation electric shock test system based on big data, which comprises a test login unit, an external voltage input unit, a data acquisition unit, a test mode management unit, a data storage unit and a display unit, wherein the test mode management unit is arranged, different test methods are adopted aiming at different types of electroceramics to be tested, the problem of insufficient pertinence in the test of different electroceramics is avoided, the different use environments of different electroceramics are considered, so that the pertinence test is carried out, the test standard of the electroceramics is effectively refined, the test guarantee is improved, the test login unit is arranged, the times of the testers needing to test are calculated, the errors of the testers with different levels on the electroceramics test result are avoided, the testers are urged to improve the test level of the testers, and the accuracy of the electroceramics test is improved, the yield is ensured.
Description
Technical Field
The invention relates to a test system, in particular to an electroceramic insulation electric shock test system based on big data.
Background
Electrical ceramics is called electroceramic for short. Is a porcelain electrical insulating material with good insulating property and mechanical strength, such as an insulator. Electroceramics are containers used in electrical power systems, mainly as supporting and insulating parts, and sometimes also as other electrical parts. Therefore, it has high requirements for mechanical properties, electrical properties, and environmental resistance (cooling, heating, dirt resistance, aging, etc.).
The electric porcelain is a porcelain insulator applied to an electric power industrial system and formed by firing natural minerals such as bauxite, kaolin, feldspar and the like as main raw materials at high temperature, is mainly applied to power transmission lines, transformer substations and electrical equipment of various voltage levels in the electric power system and other special industries such as the electric power system of rail transit, is used as an insulating material, needs to be subjected to strict insulation electric shock test, only qualified products can be put into practical application, the existing insulator test is usually subjected to batch one-time voltage-withstanding test, the test influence on environment and personnel and the influence on the completeness of the electric porcelain are not paid attention, the test result is not accurate, and potential safety hazards are easy to appear in the using process.
Disclosure of Invention
The invention aims to provide an electroceramic insulation shock test system based on big data.
The technical problem solved by the invention is as follows:
(1) how to calculate the times of the testers needing to be tested by setting the test login unit solves the problem that the test level of different testers cannot be adjusted in real time in the prior art.
(2) How to adopt different test methods to different types of electroceramics to be tested through setting up test mode management unit solves the problem that can not carry out different test modes to different types of electroceramics to be tested among the prior art, leads to the test result can not match practical application occasion.
The purpose of the invention can be realized by the following technical scheme: a big data-based electroceramic insulation electric shock test system comprises a test login unit, an external voltage input unit, a data acquisition unit, a test mode management unit, a data storage unit and a display unit;
the data storage unit is pre-stored with tester data and specification data corresponding to various models, wherein the tester data comprises tester job numbers, employee face images, test working time, test product batches, batch numbers and batch rejection rates, and the specification data comprises design bearing voltage, use environment, design use frequency and allowable leakage current values;
the data acquisition unit is used for acquiring model data and surface image data of the electroceramic to be tested and sending the model data and the surface image data to the test mode management unit;
the testing mode management unit selects a corresponding testing mode according to the obtained model data of the electric porcelain to be tested, a curve chart generated in the testing process is sent to the display unit for displaying, and when unqualified products appear, an acousto-optic prompt is given.
The invention has further technical improvements that: the external voltage input unit is used for carrying out voltage loading on the electroceramics to be tested, the loaded voltage is adjustable within the range of 1-1000 kv, and the voltage frequency is adjustable within the range of 45-55 HZ.
The invention has further technical improvements that: the testing login unit is used for testing the logging system of the testing personnel, inputting the work number of the testing personnel through a login interface, simultaneously starting the camera to acquire real-time images of the personnel, extracting the face images of the personnel from the data storage unit according to the work number of the testing personnel, comparing the face images of the personnel with the real-time images of the personnel, if the matching is successful, logging in successfully, obtaining testing authorization, if the matching is failed, logging in failure, and refusing the corresponding personnel to operate the testing system.
The invention has further technical improvements that: three test modes, namely a constant-pressure test, an environment simulation test and a variable-pressure test, are preset in the test mode management unit, and the test mode selection comprises the following specific steps:
step S1: acquiring surface image data, performing area division on the surface image data, dividing the surface image data into a front joint area, a middle area and a rear joint area, performing amplification processing on the three areas, measuring the length and the width of a gap when the gap appears in any area, marking the length and the width of the gap as gap length data and gap width data, simultaneously entering step S2, and directly entering step S3 when no gap exists in all areas;
step S2: the testing mode management unit is preset with a length limit value and a width limit value, the gap length data and the gap width data are respectively compared with the length limit value and the width limit value, when the gap length data is larger than or equal to the length limit value and the gap width data is larger than or equal to the width limit value, the electric porcelain to be tested is judged not to meet the testing requirements, and the electric porcelain to be tested is marked and removed;
step S3: when the model data of the electric porcelain to be tested is a low-voltage indoor insulator, a constant voltage test is adopted, corresponding specification data is obtained from the data storage unit, the design bearing voltage in the data storage unit is extracted, loading voltage on the tested porcelain to be tested, gradually increasing the voltage to the designed bearing voltage, maintaining the current voltage for a preset time, selecting a plurality of time points in real time to measure the leakage current value of the corresponding porcelain, and taking the time as a horizontal axis, establishing a virtual plane rectangular coordinate system by taking the leakage current value as a vertical axis, marking the leakage current value acquired corresponding to the time point in the plane rectangular coordinate system in a coordinate point form, then connecting by using a smooth curve, calculating the average value of a plurality of leakage current values, comparing the average value with the allowable leakage current value, when the average value is smaller than the allowable leakage current value, the electric porcelain is determined to be qualified, otherwise, the electric porcelain is determined to be unqualified;
step S4: when the model data of the electric porcelain to be tested is an indoor high-voltage insulator, a transformation test is adopted, corresponding specification data are obtained from a data storage unit, the design bearing voltage in the data storage unit is extracted, the electric porcelain to be tested is loaded with the voltage and gradually increased to the design bearing voltage, the loaded voltage is enabled to change at a constant speed within the range of 95% -105% of the design bearing voltage within a preset time, the design bearing voltage is kept after the change times reach a preset value, and the subsequent operation is the same as that in the step S3;
step S5: when the model data of the electric porcelain to be tested is a high-voltage power grid insulator, an environment simulation test is adopted, corresponding specification data are obtained from the data storage unit, the design bearing voltage in the data storage unit is extracted, the voltage is loaded on the electric porcelain to be tested and gradually increased to the design bearing voltage, air humidity and temperature changes are simulated in the voltage loading process, the dryness and the temperature of the electric porcelain body are further changed, the duration time of each change process is a preset value, and the subsequent operation steps are the same as those in S3.
The invention has further technical improvements that: model influence weights are preset in the test login unit, assignment is carried out according to different model data of the electroceramics to be tested, and the assignment size arrangement sequence is as follows: the environment simulation test > vary voltage test > level pressure test, the test login unit obtains tester data from the data memory cell, substitutes the duration of test operation, batch rejection rate into the formula of calculating:
and obtaining the testing times, and testing the electroceramic to be tested repeatedly by a tester according to the testing times.
The invention has further technical improvements that: the display unit is a tablet computer.
Compared with the prior art, the invention has the beneficial effects that:
1. when the device is used, the data acquisition unit acquires the model data and the surface image data of the electric porcelain to be tested and sends the model data and the surface image data to the test mode management unit, the test mode management unit selects a corresponding test mode according to the acquired model data of the electric porcelain to be tested, different test methods are adopted for different types of electric porcelain to be tested by setting the test mode management unit, the problem of insufficient pertinence during testing of different electric porcelains is avoided, different use environments of different electric porcelains are considered, the pertinence test is carried out, the test standard of the electric porcelains is effectively refined, and the test guarantee is improved.
2. Before the test begins, a tester can access the test system through the test login unit, the test login unit calculates the number of times of the test required by the current tester according to the data of the tester, so that the test precision of the corresponding tester is improved, the number of times of the test required by the tester is calculated by arranging the test login unit, errors generated by the testers with different levels on the test result of the electric porcelain are avoided, the tester is urged to improve the test level of the tester, the accuracy of the electric porcelain test is improved, and the yield is guaranteed.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a big data-based electroceramic insulation electric shock test system comprises a test login unit, an external voltage input unit, a data acquisition unit, a test mode management unit, a data storage unit and a display unit;
the data storage unit is pre-stored with tester data and specification data corresponding to various models, wherein the tester data comprises tester job numbers, employee face images, test working time, test product batches, batch numbers and batch rejection rates, and the specification data comprises design bearing voltage, use environment, design use frequency and allowable leakage current values;
the data acquisition unit is used for acquiring model data and surface image data of the electroceramic to be tested and sending the model data and the surface image data to the test mode management unit;
the testing mode management unit selects a corresponding testing mode according to the obtained model data of the electric porcelain to be tested, a curve chart generated in the testing process is sent to the display unit for displaying, and when unqualified products appear, an acousto-optic prompt is given.
The external voltage input unit is used for carrying out voltage loading on the electroceramics to be tested, the loaded voltage is adjustable within the range of 1-1000 kv, and the voltage frequency is adjustable within the range of 45-55 HZ.
The testing login unit is used for testing the logging system of the testing personnel, inputting the work number of the testing personnel through a login interface, simultaneously starting the camera to acquire real-time images of the personnel, extracting the face images of the personnel from the data storage unit according to the work number of the testing personnel, comparing the face images of the personnel with the real-time images of the personnel, if the matching is successful, logging in successfully, obtaining testing authorization, if the matching is failed, logging in failure, and refusing the corresponding personnel to operate the testing system.
Three test modes, namely a constant-pressure test, an environment simulation test and a variable-pressure test, are preset in the test mode management unit, and the test mode selection comprises the following specific steps:
step S1: acquiring surface image data, performing area division on the surface image data, dividing the surface image data into a front joint area, a middle area and a rear joint area, performing amplification processing on the three areas, measuring the length and the width of a gap when the gap appears in any area, marking the length and the width of the gap as gap length data and gap width data, simultaneously entering step S2, and directly entering step S3 when no gap exists in all areas;
step S2: the testing mode management unit is preset with a length limit value and a width limit value, the gap length data and the gap width data are respectively compared with the length limit value and the width limit value, when the gap length data is larger than or equal to the length limit value and the gap width data is larger than or equal to the width limit value, the electric porcelain to be tested is judged not to meet the testing requirements, and the electric porcelain to be tested is marked and removed;
step S3: when the model data of the electric porcelain to be tested is a low-voltage indoor insulator, a constant voltage test is adopted, corresponding specification data is obtained from the data storage unit, the design bearing voltage in the data storage unit is extracted, loading voltage on the tested porcelain to be tested, gradually increasing the voltage to the designed bearing voltage, maintaining the current voltage for a preset time, selecting a plurality of time points in real time to measure the leakage current value of the corresponding porcelain, and taking the time as a horizontal axis, establishing a virtual plane rectangular coordinate system by taking the leakage current value as a vertical axis, marking the leakage current value acquired corresponding to the time point in the plane rectangular coordinate system in a coordinate point form, then connecting by using a smooth curve, calculating the average value of a plurality of leakage current values, comparing the average value with the allowable leakage current value, when the average value is smaller than the allowable leakage current value, the electric porcelain is determined to be qualified, otherwise, the electric porcelain is determined to be unqualified;
step S4: when the model data of the electric porcelain to be tested is an indoor high-voltage insulator, a transformation test is adopted, corresponding specification data are obtained from a data storage unit, the design bearing voltage in the data storage unit is extracted, the electric porcelain to be tested is loaded with the voltage and gradually increased to the design bearing voltage, the loaded voltage is enabled to change at a constant speed within the range of 95% -105% of the design bearing voltage within a preset time, the design bearing voltage is kept after the change times reach a preset value, and the subsequent operation is the same as that in the step S3;
step S5: when the model data of the electric porcelain to be tested is a high-voltage power grid insulator, an environment simulation test is adopted, corresponding specification data are obtained from the data storage unit, the design bearing voltage in the data storage unit is extracted, the voltage is loaded on the electric porcelain to be tested and gradually increased to the design bearing voltage, air humidity and temperature changes are simulated in the voltage loading process, the dryness and the temperature of the electric porcelain body are further changed, the duration time of each change process is a preset value, and the subsequent operation steps are the same as those in S3.
Model influence weights are preset in the test login unit, assignment is carried out according to different model data of the electroceramics to be tested, and the assignment size arrangement sequence is as follows: the environment simulation test > vary voltage test > level pressure test, the test login unit obtains tester data from the data memory cell, substitutes the duration of test operation, batch rejection rate into the formula of calculating:
The display unit is a tablet computer.
The working principle is as follows: when the electric porcelain testing device is used, firstly, the data acquisition unit acquires model data and surface image data of the electric porcelain to be tested and sends the model data and the surface image data to the testing mode management unit, the testing mode management unit selects a corresponding testing mode according to the acquired model data of the electric porcelain to be tested, a curve chart generated in the testing process is sent to the display unit for displaying, when unqualified products appear, a sound and light prompt is sent, before testing starts, a tester can access a testing system through the testing login unit, and meanwhile, the testing login unit calculates the testing times required by the tester at present according to the data of the tester, so that the testing precision of the corresponding tester is improved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (4)
1. The utility model provides an electroceramics insulation electric shock test system based on big data which characterized in that: the device comprises a test login unit, an external voltage input unit, a data acquisition unit, a test mode management unit, a data storage unit and a display unit;
the test login unit is also used for testing the login system of the tester, inputting the job number of the tester through a login interface,open the camera simultaneously, acquire personnel's real-time image, draw staff's facial image from the data storage unit according to the tester job number, compare staff's facial image and personnel's real-time image, if match successfully, then the login is successful, obtain the test authorization, if match failure, then the login failure refuses to correspond this test system of personnel's operation, and it is different to correspond the test number of times of the examination electro-ceramics that awaits measuring of tester to different models, specifically includes: model influence weights are preset in the test login unit, assignment is carried out according to different model data of the electroceramics to be tested, and the assignment size arrangement sequence is as follows: the environment simulation test > vary voltage test > level pressure test, the test login unit obtains tester data from the data memory cell, substitutes the duration of test operation, batch rejection rate into the formula of calculating:
obtaining the testing times, and testing the electroceramic to be tested repeatedly by a tester according to the testing times;
the data storage unit is pre-stored with tester data and specification data corresponding to various models, wherein the tester data comprises tester job numbers, employee face images, test working time, test product batches, batch numbers and batch rejection rates, and the specification data comprises design bearing voltage, use environment, design use frequency and allowable leakage current values;
the data acquisition unit is used for acquiring model data and surface image data of the electroceramic to be tested and sending the model data and the surface image data to the test mode management unit;
the testing mode management unit selects a corresponding testing mode according to the obtained model data of the electric porcelain to be tested, sends a curve chart generated in the testing process to the display unit for displaying, and gives out an acousto-optic prompt when unqualified products appear.
2. The electric porcelain insulation electric shock test system based on big data of claim 1, wherein the external voltage input unit is used for loading voltage to the electric porcelain to be tested, the loaded voltage is adjustable within a range of 1kv-1000kv, and the voltage frequency is adjustable within a range of 45HZ-55 HZ.
3. The electric porcelain insulation electric shock test system based on big data as claimed in claim 1, wherein three test modes, namely a constant voltage test, an environment simulation test and a voltage transformation test, are preset in the test mode management unit, before the test, the marking and removing which do not meet the test requirements are performed by performing area division and amplification processing on the surface image data, and different test modes are selected according to the model data of the electric porcelain to be tested to perform the test which meet the test requirements.
4. The big-data-based electroceramic insulation shock test system according to claim 1, wherein the display unit is a tablet computer.
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| CN112055069A (en) * | 2020-08-31 | 2020-12-08 | 深圳供电局有限公司 | Electric power automation equipment testing method and system |
| CN112379225A (en) * | 2020-10-31 | 2021-02-19 | 国网天津市电力公司 | Power equipment corona identification and evaluation alarm system and use method thereof |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10319084A (en) * | 1997-05-16 | 1998-12-04 | Nissin Electric Co Ltd | Insulator contamination diagnostic device |
| JPH1123643A (en) * | 1997-07-03 | 1999-01-29 | Nissin Electric Co Ltd | Abrupt contamination detector for insulator |
| CN106249118A (en) * | 2016-09-20 | 2016-12-21 | 国网天津市电力公司 | Based on GIS device superfrequency partial discharge detecting system under surge voltage |
| CN111707909A (en) * | 2020-05-28 | 2020-09-25 | 广州广华智电科技有限公司 | Porcelain insulator detection method and porcelain insulator detection circuit |
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