CN216560800U - Voltage withstand test system for power system protection device - Google Patents
Voltage withstand test system for power system protection device Download PDFInfo
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- CN216560800U CN216560800U CN202122481425.7U CN202122481425U CN216560800U CN 216560800 U CN216560800 U CN 216560800U CN 202122481425 U CN202122481425 U CN 202122481425U CN 216560800 U CN216560800 U CN 216560800U
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Abstract
The application please relate to electric power system test field, concretely relates to withstand voltage test system for electric power system protection device, protection device's outside is provided with the identification image, and protection device still is provided with the test interface that is used for carrying out withstand voltage test, and withstand voltage test system includes: the pressing piece mechanism is used for fixing the protection device; the scanning device corresponds to the position of the fixed identification image of the protection device and is used for scanning and identifying the identification image; the tool handle seat corresponds to the position of the test interface of the fixed protection device and is used for inserting the test interface; and the withstand voltage tester is electrically connected with the tool handle seat and is used for carrying out withstand voltage test on the protection device.
Description
Technical Field
The application relates to the field of power system testing, in particular to a withstand voltage testing system for a power system protection device.
Background
The protection device is an important component of the current power system and plays an extremely critical role in protecting the safe and stable operation of the power system. The withstand voltage test is a main method for testing the overvoltage bearing capacity of the protection device, can effectively find the overall defects of insulation, such as moisture, dirt and the like, and can find the local defects of the insulation through a relation curve of current and leakage current. The voltage withstanding test is used as an important test item in the production process of the protection device of the power system, and the test efficiency and the test result of the voltage withstanding test directly influence the overall production efficiency and quality of the protection device.
The protection device has the characteristics of multiple varieties and small batch, the voltage-withstanding test process relates to the problems of diversity of external test terminals of the board card, diversity of device configuration, monitoring of the state of the test process, output of test results, storage of test data, quality tracing and the like, but the current voltage-withstanding test process mainly depends on manual operation. The model of the protection device to be tested is judged manually, then the corresponding test terminal is selected, the test terminal is manually inserted into the protection device to be tested, the withstand voltage data of the protection device is tested through the withstand voltage tester, and the parameters of the environment temperature, the humidity and the like are manually recorded. The manual operation efficiency is low, and the problems of wrong matching or recording and the like caused by human factors are high in probability.
SUMMERY OF THE UTILITY MODEL
Based on this, this application provides a withstand voltage test system for electric power system protection device, wherein, the last sign image that is provided with the record protection device model of protection device, be provided with in the withstand voltage test system and can be with the casting die mechanism that protection device is fixed, still be provided with the scanning device who is used for discerning the sign image, still be provided with can insert the frock that withdraws from the test terminal to protection device voluntarily and be used for carrying out withstand voltage tester with frock is connected the seat. The pressure resistance test system enables the whole pressure resistance test process to be automatic, and manual intervention is almost not needed. The problem of exist among the manual test is solved, the efficiency of withstand voltage test and the accuracy of test result have been improved.
According to an aspect of the present application, a withstand voltage test system for a power system protection device is provided, the outside of the protection device is provided with an identification image, the protection device is further provided with a test interface for performing withstand voltage test, the withstand voltage test system includes:
the pressing piece mechanism is used for fixing the protection device;
the scanning device corresponds to the position of the fixed identification image of the protection device and is used for scanning and identifying the identification image;
the tool handle seat corresponds to the position of the test interface of the fixed protection device and is used for inserting the test interface;
and the withstand voltage tester is electrically connected with the tool handle seat and is used for carrying out withstand voltage test on the protection device.
According to some embodiments, the aforementioned withstand voltage testing system further comprises: and the throwing and withdrawing mechanism is connected with the pressing member mechanism and is used for throwing or withdrawing the protection device from the pressing member mechanism.
According to some embodiments, the aforementioned withstand voltage testing system further comprises: the carrier is used for bearing the bottom of the protection device; the side pressing mechanism is used for fixing the side part of the protection device; and the pressing mechanism is used for fixing the top of the protection device.
According to some embodiments, the aforementioned withstand voltage testing system further comprises: the test terminal is directly inserted into the test interface to carry out voltage withstanding test on the protection device; and the ejector pin mechanism is fixedly connected with the test terminal and is used for inserting the test terminal into the test interface or pulling the test terminal out of the test interface.
According to some embodiments, the aforementioned withstand voltage testing system further comprises: the withstand voltage tester is electrically connected with the test terminal.
According to some embodiments, the ejector pin mechanism comprises a two-position three-way solenoid valve and a two-axis cylinder.
According to some embodiments, the aforementioned withstand voltage testing system further comprises: and the PLC is electrically connected with the side pressing mechanism, the scanning device and the thimble mechanism.
According to some embodiments, the above-mentioned withstand voltage testing system further comprises an environmental parameter collecting device, and the environmental parameter collecting device is electrically connected with the PLC.
According to some embodiments, the aforementioned pressure resistance test system further comprises a temperature sensor and/or a humidity sensor.
According to some embodiments, the above-mentioned withstand voltage test system further comprises an upper computer, and the upper computer is electrically connected with the PLC and the withstand voltage tester.
The beneficial effect of this application:
according to some embodiments, the automatic identification of the model of the protection device is realized by arranging the identification image on the protection device and arranging the scanning device in the withstand voltage test system.
According to some embodiments, the pressing mechanism can align the identification image of the protection device with the scanning device by fixing the protection device, so that the efficiency of the withstand voltage test is improved.
According to some embodiments, the tool holder of the application can automatically select the used test terminal and automatically insert and extract the test terminal into and out of the protection device to be tested according to the identification result of the model of the protection device.
According to some embodiments, the withstand voltage test system realizes intellectualization, automation and unmanned process of withstand voltage test of the protection device of the power system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
Fig. 1 shows a side-rear orientation schematic diagram of a withstand voltage testing system for a power system protection device according to an embodiment of the present application.
Fig. 2 shows a front side schematic view of a voltage withstand test system for a power system protection device according to an embodiment of the present application.
Fig. 3 shows a front side schematic view of another voltage withstand test system for a power system protection device according to an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other means, components, materials, devices, or the like. In such cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The protection device in the power system needs to perform a voltage withstanding test to detect the defects of the protection device, so that the normal operation of the whole power system is guaranteed. The existing voltage withstanding test is carried out manually, for example, the model of the protection device to be tested is judged manually, then a corresponding test terminal is selected, the test terminal is manually inserted into the protection device to be tested, voltage withstanding data of the protection device is tested through a voltage withstanding tester, and parameters such as environmental temperature and humidity are manually recorded. The manual operation efficiency is low, and the problems of wrong matching or recording and the like caused by human factors are high in probability.
In view of the above, the present application provides a withstand voltage test system for a protection device of an electric power system, so that withstand voltage test for the protection device can be performed automatically. Compared with a manual method, the efficiency and accuracy of the voltage-withstanding test are greatly improved. The withstand voltage testing system for the power system protection device will be described in detail herein.
Fig. 1 shows a schematic diagram of a withstand voltage testing system for a power system protection device according to an embodiment of the present application.
As shown in fig. 1, the protection device 1 is the object of the withstand voltage test, and it is seen that it is a solid device with a fixed shape. In the conventional method, the model of the protection device 1 needs to be first identified and judged by an inspector.
According to an example embodiment, an identification image (not shown) may be provided on the protection device 1, and the identification image may be processed by machine scanning, recognition, or the like to quickly obtain information recorded therein, such as a barcode or a two-dimensional code.
According to an embodiment, information on the protection apparatus 1 such as the model number, serial number, parameters, and the like of the protection apparatus 1 can be recorded in the identification image.
The protection device 1 is provided with a test interface for voltage withstanding test, and the test interface is used for inserting a test terminal to perform voltage withstanding test. Different models of protection devices 1 have different types of test interfaces, and the different types of test interfaces require insertion of corresponding test terminals, so that different types of protection devices 1 require insertion of different test terminals. In the conventional method, after the model of the protection device 1 is manually identified, the corresponding test terminal needs to be manually selected and inserted into the corresponding test interface.
According to an exemplary embodiment, the pressure resistance test system of the present application is provided with a presser mechanism 2 for fixing the protection device 1.
According to an exemplary embodiment, the presser mechanism 2 further comprises a carrier 21 for carrying the bottom of the protector 1, a side press mechanism 22 for fixing the side of the protector, and a hold-down mechanism 23 for fixing the top of the protector. The carrier 21, the lateral pressing mechanism 22 and the pressing mechanism 23 cooperate together to fix the protection device 1 for subsequent voltage withstanding tests.
According to one embodiment, the carrier 21 is a fixed location, and the side pressing mechanism 22 and the pressing mechanism 23 have mechanical transmission means. The protection device 1 may be pressed and fixed after the protection device 1 is put in place on the carrier 21 according to a command, or the protection device 1 may be released after the withstand voltage test is ended so that the protection device 1 may be removed.
According to an exemplary embodiment, the voltage withstand test system of the present application is provided with a scanning device 3 for scanning and recognizing the aforementioned identification image provided on the protection device 1 to obtain data required for the voltage withstand test, such as the model of the protection device 1 and the like.
According to one embodiment, the scanning device 3 may be arranged in a fixed position, acquiring images identifying the fixed area. It is thus necessary that the identification image of the protection device 1 is also arranged at a corresponding fixed position to cooperate with the scanning device 3 for the withstand voltage test work.
According to another embodiment, the scanning device 3 may also be a rail-type whole body scanning device, which may scan the whole of the protection device 1 to find and identify the identification image disposed thereon. As described above, the position of the identification image of the protection device 1 is not strictly required, but the cost input of the voltage withstand test system is increased to some extent.
According to an exemplary embodiment, the voltage withstand test system of the present application is provided with a plurality of tool holder seats 4, the positions of which correspond to the test interfaces of the fixed protection device 1, for inserting the aforementioned test terminals into the test interfaces.
According to an exemplary embodiment, each tooling holder 4 further includes a test terminal 41 and an ejector pin mechanism 42. The test terminal 41 is used for being directly inserted into a test interface to carry out withstand voltage test on the protection device; the thimble mechanism 42 is fixedly connected to the test terminal 41, and inserts the test terminal 41 into a test interface of the protection device or extracts the test terminal 41 from the test interface based on a command.
According to an embodiment, the thimble mechanism 42 may include a two-position three-way solenoid valve and a two-axis cylinder, and the insertion and extraction of the test terminal 41 fixedly connected thereto into and from the test interface are accomplished by controlling a dual coil power supply of the two-position three-way solenoid valve to drive the movement of the two-axis cylinder.
According to an exemplary embodiment, the withstand voltage testing system of the present application is provided with a withstand voltage tester (not shown). The withstand voltage tester is electrically connected with the test terminal 41 in the tool handle seat 4 and is used for carrying out withstand voltage test on the protection device 1.
According to some embodiments, the voltage withstand test system of the present application may further be provided with a trip mechanism (not shown). The throw-in/withdraw mechanism may be a conveying device such as a conveyor belt, connected to the pressing mechanism 2, for automatically conveying the protection device 1 to throw it onto the carrier 21 of the pressing mechanism 2 to perform the pressure resistance test, and for withdrawing the protection device 1 from the pressing mechanism 2 after the pressure resistance test is completed. If the throw-in and retreat mechanism is not provided, the protection device 1 can be manually placed on the carrier 21 of the pressing member mechanism 2 to perform the pressure resistance test.
According to an example embodiment, the voltage withstand test system of the present application is provided with a plc (programmable Logic controller), i.e., a programmable Logic controller.
According to one embodiment, the PLC is electrically connected to the side pressing mechanism 22, the pressing mechanism 23, the scanning device 3, and the thimble mechanism 42 for controlling the operation of the above mechanisms or devices.
According to an embodiment, the PLC in the present application may be model PCS-9150M.
According to an example embodiment, the withstand voltage test system of the present application is provided with an environmental parameter collecting device (not shown in the drawings). The environmental parameter acquisition device is used for acquiring environmental parameters such as temperature, humidity and the like required to be recorded during the pressure resistance test. The environmental parameter acquisition device may therefore comprise a temperature sensor, a humidity sensor, etc.
According to an embodiment, the environmental parameter collecting device can be electrically connected with the PLC to send the collected environmental parameters to the PLC for processing.
According to an embodiment, the voltage withstand test system is provided with an upper computer. The upper computer is the core of the software system in the voltage withstanding test system.
According to one embodiment, the upper computer is in communication interaction with the PLC and the withstand voltage tester through a TCP protocol.
According to an embodiment, the voltage withstanding test system is further provided with a data acquisition system and a test result database. The data acquisition system is used for acquiring the withstand voltage test data and the environmental parameter data in real time, associating the information of the protection device 1 obtained by scanning of the scanning device 3, generating a withstand voltage test report and storing the withstand voltage test report in the test result database.
According to one embodiment, the data collection system may be an MDC data collection system.
According to an embodiment, the test results database may be a MIS2.0 database.
Fig. 2 shows a front side schematic view of a voltage withstand test system for a power system protection device according to an embodiment of the present application.
As shown in the drawings, the structural schematic diagram of the solid part of the voltage withstanding test system of the present application is shown from the front side. In which the scanning means 3 are not embodied.
Fig. 3 shows a front side schematic view of another voltage withstand test system for a power system protection device according to an embodiment of the present application.
As shown in the drawing, the schematic diagram is a structure diagram of a substantial part of the withstand voltage test system from which the protection device 1 is removed from fig. 2. The structure can be observed more directly.
The following describes in detail the process of performing a withstand voltage test using the withstand voltage test system of the present application:
according to some embodiments, before the withstand voltage test is performed, a protection device information database in which information such as the model, name, parameter, and the like of different protection devices 1 is stored is constructed in advance. Where the model number or name is a unique identification in the database.
The protection device information database also stores the on/off information of the test terminals corresponding to each model of the protection device 1, that is, the test terminals 41 into which each model of the protection device 1 should be inserted, that is, the control parameters of the tool holder 4. According to an embodiment, assuming that 10 test terminals are provided in total, and the test terminals are respectively numbered from S1 to S10, and for the protection device of model a, the test terminals S1, S3, S4 and S5 are required for the voltage withstanding test, the ejector mechanism 42 of the tool holder 4 is controlled to operate during the voltage withstanding test, so that the test terminal 41 with the corresponding number is inserted into the test interface of the protection device of model a 1.
According to some embodiments, when performing a pressure resistance test, the protection device 1 to be tested is first placed on the presser mechanism 2, in particular, on the carrier 21. The protection device 1 may be automatically transported by the above-described retraction mechanism, or may be manually transported to the carrier 21.
Then, the side pressing mechanism 22 and the pressing mechanism 23 of the pressing mechanism 2 together press and fix the protection device 1 at a prescribed position.
And starting the scanning device 3, and scanning and identifying the identification image on the protection device 1 to obtain information such as the model, the serial number, the parameters and the like of the protection device 1 to be tested. And matching the scanned information with the data stored in the protection device information database, and finding out the control parameters of the corresponding tool holder 4. If the matching is unsuccessful, warning information can be prompted to the operator if the matching is unsuccessful, and the operator is reminded to maintain and upgrade the protection device information database.
If the matching is successful, the ejector pin mechanism 42 of the tool holder 4 is controlled to act based on the control parameters of the tool holder 4, and the test terminal 41 corresponding to the test interface to be inserted into the protection device 1 is inserted into the test interface.
The withstand voltage tester is controlled to carry out withstand voltage test, and the data acquisition system is used for acquiring withstand voltage test data obtained by the withstand voltage test, wherein the withstand voltage test data can comprise direct current withstand voltage value, withstand voltage test time, leakage current magnitude and the like.
After the pressure resistance test result is collected, the environmental parameter collecting device is used for collecting the environmental parameters such as temperature and humidity, and the data collecting system is used for collecting the environmental parameters.
The data acquisition system associates the model, serial number and other specific information of the protection device 1 with the acquired withstand voltage test data and the environmental parameter data to generate a test report, and stores the test report into a test result database.
Because the pressure resistance test has strict requirements on the environment, the environmental temperature needs to be controlled within the range of 15-35 ℃ and the relative humidity needs to be controlled within the range of 45-75% according to the relevant standard requirements of the pressure resistance test. The temperature and humidity data of the pressure-resistant test environment are collected in real time and are matched with the information of the protection device in a correlation manner, so that the follow-up quality problem can be traced conveniently.
After the voltage withstand test of the protection device 1 is finished, the control tool pulls the thimble mechanism 42 of the seat 4 out of the test interface of the protection device 1. The presser mechanism 2 is then controlled to release the protection device 1 so that the protection device 1 can be moved out of the voltage resistance test area for the subsequent voltage resistance test of the protection device 1.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (10)
1. The utility model provides a withstand voltage test system for electric power system protection device, protection device's outside is provided with the sign image, protection device still is provided with the test interface that is used for carrying out withstand voltage test, withstand voltage test system includes:
the pressing piece mechanism is used for fixing the protection device;
the scanning device corresponds to the position of the fixed identification image of the protection device and is used for scanning and identifying the identification image;
the tool handle seat corresponds to the position of the test interface of the fixed protection device and is used for inserting the test interface;
and the withstand voltage tester is electrically connected with the tool handle seat and is used for carrying out withstand voltage test on the protection device.
2. The voltage withstand test system of claim 1, further comprising:
and the throwing and withdrawing mechanism is connected with the pressing member mechanism and is used for throwing or withdrawing the protection device from the pressing member mechanism.
3. The pressure withstanding test system of claim 1 wherein the compression mechanism comprises:
the carrier is used for bearing the bottom of the protection device;
the side pressing mechanism is used for fixing the side part of the protection device;
and the pressing mechanism is used for fixing the top of the protection device.
4. The pressure withstanding test system of claim 1 wherein the tooling handle holder comprises:
the test terminal is directly inserted into the test interface to carry out voltage withstanding test on the protection device;
and the ejector pin mechanism is fixedly connected with the test terminal and is used for inserting the test terminal into the test interface or pulling the test terminal out of the test interface.
5. The pressure withstanding test system of claim 4 wherein the pressure withstanding tester, electrically connected to the tool holder, comprises:
the withstand voltage tester is electrically connected with the test terminal.
6. The pressure withstanding test system of claim 4 wherein the ejector pin mechanism comprises a two-position three-way solenoid valve and a dual-axis cylinder.
7. The voltage withstand test system of claim 1, further comprising:
and the PLC is electrically connected with the pressing part mechanism, the scanning device and the tool handle seat.
8. The pressure withstanding test system of claim 7 further comprising an environmental parameter acquisition device electrically connected to the PLC.
9. The pressure withstanding test system of claim 8 wherein the environmental parameter collection assembly comprises a temperature sensor and/or a humidity sensor.
10. The pressure withstanding test system of claim 9 further comprising an upper computer electrically connected to the PLC and the pressure withstanding tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481425.7U CN216560800U (en) | 2021-10-14 | 2021-10-14 | Voltage withstand test system for power system protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481425.7U CN216560800U (en) | 2021-10-14 | 2021-10-14 | Voltage withstand test system for power system protection device |
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| Publication Number | Publication Date |
|---|---|
| CN216560800U true CN216560800U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122481425.7U Active CN216560800U (en) | 2021-10-14 | 2021-10-14 | Voltage withstand test system for power system protection device |
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| CN (1) | CN216560800U (en) |
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- 2021-10-14 CN CN202122481425.7U patent/CN216560800U/en active Active
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