CN112398220A - Integrated intelligent testing device for medium-voltage switch of nuclear power station - Google Patents
Integrated intelligent testing device for medium-voltage switch of nuclear power station Download PDFInfo
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- CN112398220A CN112398220A CN202011191997.5A CN202011191997A CN112398220A CN 112398220 A CN112398220 A CN 112398220A CN 202011191997 A CN202011191997 A CN 202011191997A CN 112398220 A CN112398220 A CN 112398220A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
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- Computer Networks & Wireless Communication (AREA)
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- Human Computer Interaction (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses an integrated intelligent testing device for a medium-voltage switch of a nuclear power station, wherein a computer, a switch mechanical characteristic tester, an insulation resistance tester, a programmable logic controller interface circuit and a testing connector matched with the switch mechanical characteristic tester and the insulation resistance tester are all arranged in an integrated intelligent testing cabinet body; the computer is in communication connection with the switch mechanical characteristic tester and the insulation resistance tester; one end of the programmable logic controller interface circuit is connected with the computer, and the other end of the programmable logic controller interface circuit is connected with the switch mechanical characteristic tester and the insulation resistance tester. The invention can reduce the operation test risk and improve the test efficiency; the operation test of the electric switch capable of automatically completing the maintenance procedure can complete all the operation test steps of the switch in a full-automatic mode, paperless tests are achieved, and complex operation procedures such as wire dismantling and manual measurement are omitted. The device can be directly plugged for use when being transported to a field, has simple structure and low cost, and is suitable for popularization and application in nuclear power stations.
Description
Technical Field
The invention relates to the technical field of detection of medium-voltage switches of nuclear power stations, in particular to an integrated intelligent testing device for a medium-voltage switch of a nuclear power station.
Background
Nuclear power is a low-carbon environment-friendly clean energy source. The nuclear power does not generate air pollutants such as sulfur dioxide, nitrogen oxide, smoke dust and the like in the power generation process, the emission of the carbon dioxide is far lower than that of thermal power, and the nuclear power becomes one of important energy used by people. The stable operation of the medium-voltage switch of the nuclear power station ensures the safe operation of key equipment of the nuclear power station to a certain extent, thereby ensuring the nuclear safety. At present, medium-voltage switches aimed at by a nuclear power station are mainly a medium-voltage circuit breaker and a medium-voltage contactor, the detection means of the medium-voltage circuit breaker and the medium-voltage contactor still adopt meters to measure relevant characteristics one by one, the test result is manually recorded after each test is finished, and the next test item is required to be re-wired.
The above problems are urgently needed to be solved.
Disclosure of Invention
The invention aims to solve the problems mentioned in the background of the invention by providing an integrated intelligent testing device for a medium-voltage switch of a nuclear power station.
In order to achieve the purpose, the invention adopts the following technical scheme:
the embodiment of the invention provides an integrated intelligent testing device for a medium-voltage switch of a nuclear power station, which comprises an integrated intelligent testing cabinet body, a computer, a switch mechanical characteristic tester, an insulation resistance tester, a Programmable Logic Controller (PLC) interface circuit and a testing connector matched with the switch mechanical characteristic tester and the insulation resistance tester; the computer, the switch mechanical characteristic tester, the insulation resistance tester, the programmable logic controller interface circuit and the test connector matched with the switch mechanical characteristic tester and the insulation resistance tester are all arranged in the integrated intelligent test cabinet body; the computer is in communication connection with the switch mechanical characteristic tester and the insulation resistance tester; one end of the programmable logic controller interface circuit is connected with the computer, and the other end of the programmable logic controller interface circuit is connected with the switch mechanical characteristic tester and the insulation resistance tester; the programmable logic controller interface circuit is connected with the test connector; the computer selects a medium-voltage switch test item, outputs a corresponding instruction to the programmable logic controller interface circuit, the programmable logic controller interface circuit switches a switch mechanical characteristic tester or an insulation resistance tester corresponding to the selected medium-voltage switch test item according to the received instruction, and the switch mechanical characteristic tester or the insulation resistance tester completes the selected medium-voltage switch test item and transmits and stores test data to the computer.
Particularly, the display screen of the computer is installed on one side of the integrated intelligent test cabinet body, and is used for displaying selectable medium-voltage switch test items on one hand, and displaying test data fed back by the switch mechanical characteristic tester and the insulation resistance tester on the other hand in a report form, and meanwhile, the computer completes communication with the switch mechanical characteristic tester, the insulation resistance tester and the programmable logic controller interface circuit.
In particular, a corresponding medium voltage switch test item is selected by the computer, an independent comprehensive test report is generated in each medium voltage interval, and the completed test contents include but are not limited to: firstly, testing contact resistance of a power loop; secondly, testing interphase and ground insulation resistance of the power circuit; thirdly, detecting the opening and closing state of the auxiliary contact of the switch control circuit and measuring the conduction direct resistance; fourthly, the switch control loop simulates external short circuit; fifthly, performing synchronous switching-on and switching-off tests on the main circuit; sixthly, checking the voltage fixed value and the delay time; seventhly, checking the fixed value and the delay time of the three-phase overcurrent and zero-sequence overcurrent; eighthly, checking the delay time of the delay relay; ninthly, checking an overload protection curve; tenthly, verifying the excitation starting and shunt excitation voltage of the relay coil; wherein, the computer is also used for analyzing the related detection data and storing, importing and exporting the detection data.
Particularly, the insulation resistance tester is provided with a 485 communication port, and insulation testing of the medium-voltage interval main loop and the secondary loop is achieved.
In particular, the switch mechanical characteristic tester has a 485 communication port, and comprises a voltage source and a current source which are integrated together for testing the switch characteristic and the direct current resistance.
Particularly, the integrated intelligent testing device for the medium-voltage switch of the nuclear power station is also in communication connection with an intelligent testing cloud platform of the medium-voltage switch of the nuclear power station, and the computer sends the relevant testing data to a cloud end for management.
Particularly, the intelligent test cloud platform for the medium-voltage switch of the nuclear power station comprises a project management module, a maintenance personnel management module, an early warning module and a report module; the project management module is used for automatically generating the contents of the overhaul and medium voltage switch tests according to the relevant regulations of daily overhaul management and pushing the contents to relevant departments or overhaul testers in a table form; after the overhaul tester completes the relevant content, the test result is confirmed through the mobile phone or the PC end; the maintenance personnel management module is used for personnel authority division, approval process and task confirmation; the early warning module is used for establishing a mathematical model according to, but not limited to, historical data, delivery date and service life related data measured by the medium-voltage switch and giving early warning to a key electrical switch; the report module is used for forming a report for the medium-voltage switch test result and selecting whether to send the report to the cloud, and the report can give a judgment whether the test result is qualified.
The integrated intelligent testing device for the medium-voltage switch of the nuclear power station, provided by the embodiment of the invention, can reduce the operation test risk and improve the testing efficiency; the operation test of the electric switch capable of automatically completing the maintenance procedure can complete all the operation test steps of the switch in a full-automatic mode, paperless tests are achieved, and complex operation procedures such as wire dismantling and manual measurement are omitted. According to the invention, the interface circuit of the digital programming and automatic switching loop is formed according to the test content, the test of the medium-voltage switch can be completed by means of a standardized computer program and various measuring instruments in the overhaul test, and the test efficiency and accuracy are improved. The device can be directly plugged for use when being transported to a field, has simple structure and low cost, and is suitable for popularization and application in nuclear power stations. In addition, the related data of the testing device can be uploaded to a cloud end, and an intelligent testing cloud platform for the medium-voltage switch of the nuclear power station is established, and has a project management function, a maintenance personnel management function, an early warning function and a report function, and the intelligent degree is high.
Drawings
Fig. 1 is a front view of an integrated intelligent testing device for a medium-voltage switch of a nuclear power plant according to an embodiment of the present invention;
fig. 2 is a side view of an integrated intelligent testing device for a medium voltage switch of a nuclear power plant according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention 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. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and fig. 2, the integrated intelligent testing apparatus for a medium voltage switch of a nuclear power station in the present embodiment includes an integrated intelligent testing cabinet 101, a computer 102, a switch mechanical characteristic tester 103, an insulation resistance tester 104, and an interface control module 105, where the interface control module 105 includes, but is not limited to, a Programmable Logic Controller (PLC) interface circuit and a testing connector adapted to the switch mechanical characteristic tester 103 and the insulation resistance tester 104. The computer 102, the switch mechanical characteristic tester 103, the insulation resistance tester 104, the programmable logic controller interface circuit and the test connectors matched with the switch mechanical characteristic tester 103 and the insulation resistance tester 104 are all installed in the integrated intelligent test cabinet body 101; the computer 102 is in communication connection with the switch mechanical characteristic tester 103 and the insulation resistance tester 104; one end of the programmable logic controller interface circuit is connected with the computer 102, and the other end of the programmable logic controller interface circuit is connected with the switch mechanical characteristic tester 103 and the insulation resistance tester 104; the programmable logic controller interface circuit is connected with the test connector. The computer 102 selects a medium voltage switch test item, the computer 102 outputs a corresponding instruction to the programmable logic controller interface circuit, the programmable logic controller interface circuit switches the switch mechanical property tester 103 or the insulation resistance tester 104 corresponding to the selected medium voltage switch test item according to the received instruction, and the switch mechanical property tester 103 or the insulation resistance tester 104 completes the selected medium voltage switch test item and transmits and stores test data to the computer 102.
Specifically, in this embodiment, the display screen of the computer 102 is installed on one side of the integrated intelligent test cabinet 101, and is used to display selectable medium-voltage switch test items on one hand, and to display test data fed back by the switch mechanical characteristic tester 103 and the insulation resistance tester 104 on the other hand, and to present the test data in a report form, and meanwhile, the computer 102 completes communication with the switch mechanical characteristic tester 103, the insulation resistance tester 104, and the interface circuit of the programmable logic controller. Specifically, in this embodiment, the bottom of the integrated intelligent testing cabinet 101 is further provided with wheels, so that the integrated intelligent testing cabinet is more flexible and convenient to move.
Specifically, in this embodiment, the insulation resistance tester 104 has a 485 communication port, and implements insulation test on the intermediate voltage primary loop and the secondary loop. Specifically, in this embodiment, the switch mechanical characteristic tester 103 has a 485 communication port, and includes a voltage source and a current source integrated with the switch mechanical characteristic tester for testing the switch characteristic and the dc resistance.
Specifically, in this embodiment, the test system software in the computer 102 establishes communication with various modules through the MODBUS protocol, and the functional modules and interfaces of the software include an insulation characteristic test function and interface and a switch characteristic test function and interface. Selecting a corresponding medium voltage switch test item through the computer 102, generating an independent comprehensive test report form for each medium voltage interval, wherein the completed test contents include but are not limited to: firstly, testing contact resistance of a power loop; secondly, testing interphase and ground insulation resistance of the power circuit; thirdly, detecting the opening and closing state of the auxiliary contact of the switch control circuit and measuring the conduction direct resistance; fourthly, the switch control loop simulates external short circuit; fifthly, performing synchronous switching-on and switching-off tests on the main circuit; sixthly, checking the voltage fixed value and the delay time; seventhly, checking the fixed value and the delay time of the three-phase overcurrent and zero-sequence overcurrent; eighthly, checking the delay time of the delay relay; ninthly, checking an overload protection curve; tenthly, verifying the excitation starting and shunt excitation voltage of the relay coil; the computer 102 is further configured to analyze the related detection data, and store and import/export the detection data.
Specifically, in this embodiment, the interface circuit of the programmable logic controller and the test socket connector realize the mutual cooperation between the medium-voltage circuit and the instrument, and the interface circuit of the programmable logic controller and the test socket connector realize the function of automatically switching the test circuit by the communication of the computer 102, the switch mechanical characteristic tester 103, the insulation resistance tester 104 and the PLC and by using test software with different functions, and realize the interface with the secondary circuit and the main contact of the circuit breaker and receive the control command. The programmable logic controller interface circuit communicates with the computer 102 in real time.
Specifically, in this embodiment, the integrated intelligent testing device for the medium voltage switch of the nuclear power plant is further in communication connection with an intelligent testing cloud platform for the medium voltage switch of the nuclear power plant, and the computer 102 sends the test-related data to a cloud for management. Specifically, in this embodiment, the intelligent test cloud platform for the medium-voltage switch of the nuclear power station includes a project management module, a maintenance personnel management module, an early warning module and a report module; the project management module is used for automatically generating the contents of the overhaul and medium voltage switch tests according to the relevant regulations of daily overhaul management and pushing the contents to relevant departments or overhaul testers in a table form; after the overhaul tester completes the relevant content, the test result is confirmed through the mobile phone or the PC end; the maintenance personnel management module is used for personnel authority division, approval process and task confirmation; the early warning module is used for establishing a mathematical model according to, but not limited to, historical data, delivery date and service life related data measured by the medium-voltage switch and giving early warning to a key electrical switch; the report module is used for forming a report for the medium-voltage switch test result and selecting whether to send the report to the cloud, and the report can give a judgment whether the test result is qualified.
The technical scheme provided by the embodiment of the invention can reduce the operation test risk and improve the test efficiency; the operation test of the electric switch capable of automatically completing the maintenance procedure can complete all the operation test steps of the switch in a full-automatic mode, paperless tests are achieved, and complex operation procedures such as wire dismantling and manual measurement are omitted. An interface circuit of a digital programming and automatic switching loop is formed according to the test content, the test of the medium-voltage switch can be completed by means of a standardized computer 102 program and various measuring instruments in the overhaul test, and the test efficiency and the test accuracy are improved. The device can be directly plugged for use when being transported to a field, has simple structure and low cost, and is suitable for popularization and application in nuclear power stations. In addition, the related data of the testing device can be uploaded to a cloud end, and an intelligent testing cloud platform for the medium-voltage switch of the nuclear power station is established, and has a project management function, a maintenance personnel management function, an early warning function and a report function, and the intelligent degree is high.
It will be understood by those skilled in the art that all or part of the above embodiments may be implemented by the computer program to instruct the relevant hardware, and the program may be stored in a computer readable storage medium, and when executed, may include the procedures of the embodiments of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. An integrated intelligent testing device for a medium-voltage switch of a nuclear power station is characterized by comprising an integrated intelligent testing cabinet body, a computer, a switch mechanical characteristic tester, an insulation resistance tester, a programmable logic controller interface circuit and a testing connector matched with the switch mechanical characteristic tester and the insulation resistance tester; the computer, the switch mechanical characteristic tester, the insulation resistance tester, the programmable logic controller interface circuit and the test connector matched with the switch mechanical characteristic tester and the insulation resistance tester are all arranged in the integrated intelligent test cabinet body; the computer is in communication connection with the switch mechanical characteristic tester and the insulation resistance tester; one end of the programmable logic controller interface circuit is connected with the computer, and the other end of the programmable logic controller interface circuit is connected with the switch mechanical characteristic tester and the insulation resistance tester; the programmable logic controller interface circuit is connected with the test connector; the computer selects a medium-voltage switch test item, outputs a corresponding instruction to the programmable logic controller interface circuit, the programmable logic controller interface circuit switches a switch mechanical characteristic tester or an insulation resistance tester corresponding to the selected medium-voltage switch test item according to the received instruction, and the switch mechanical characteristic tester or the insulation resistance tester completes the selected medium-voltage switch test item and transmits and stores test data to the computer.
2. The integrated intelligent testing device for the medium voltage switch of the nuclear power station as claimed in claim 1, wherein a display screen of the computer is installed at one side of the integrated intelligent testing cabinet body, and is used for displaying selectable medium voltage switch testing items on the one hand, and displaying test data fed back by the switch mechanical characteristic tester and the insulation resistance tester on the other hand in a report form, and meanwhile, the computer completes communication with the switch mechanical characteristic tester, the insulation resistance tester and the programmable logic controller interface circuit.
3. The integrated intelligent test device for the medium voltage switch of the nuclear power plant as claimed in claim 1, wherein the computer selects corresponding medium voltage switch test items, each medium voltage interval generates an independent comprehensive test report, and the completed test contents include but are not limited to: firstly, testing contact resistance of a power loop; secondly, testing interphase and ground insulation resistance of the power circuit; thirdly, detecting the opening and closing state of the auxiliary contact of the switch control circuit and measuring the conduction direct resistance; fourthly, the switch control loop simulates external short circuit; fifthly, performing synchronous switching-on and switching-off tests on the main circuit; sixthly, checking the voltage fixed value and the delay time; seventhly, checking the fixed value and the delay time of the three-phase overcurrent and zero-sequence overcurrent; eighthly, checking the delay time of the delay relay; ninthly, checking an overload protection curve; tenthly, verifying the excitation starting and shunt excitation voltage of the relay coil; wherein, the computer is also used for analyzing the related detection data and storing, importing and exporting the detection data.
4. The integrated intelligent test device for the medium voltage switch of the nuclear power station as claimed in claim 1, wherein the insulation resistance tester is provided with a 485 communication port to realize insulation test of the medium voltage interval primary loop and the secondary loop.
5. The integrated intelligent test device for the medium voltage switch of the nuclear power station as claimed in claim 1, wherein the switch mechanical characteristic tester has a 485 communication port, and comprises a voltage source and a current source which are integrated together for testing the switch characteristic and the direct current resistance.
6. The integrated intelligent test device for the medium voltage switch of the nuclear power plant as claimed in one of claims 1 to 5, wherein the device is further connected with an intelligent test cloud platform of the medium voltage switch of the nuclear power plant in a communication mode, and the computer sends test related data to a cloud end for management.
7. The integrated intelligent testing device for the medium-voltage switch of the nuclear power plant as recited in claim 6, wherein the intelligent testing cloud platform for the medium-voltage switch of the nuclear power plant comprises a project management module, a maintenance personnel management module, an early warning module and a report module; the project management module is used for automatically generating the contents of the overhaul and medium voltage switch tests according to the relevant regulations of daily overhaul management and pushing the contents to relevant departments or overhaul testers in a table form; after the overhaul tester completes the relevant content, the test result is confirmed through the mobile phone or the PC end; the maintenance personnel management module is used for personnel authority division, approval process and task confirmation; the early warning module is used for establishing a mathematical model according to, but not limited to, historical data, delivery date and service life related data measured by the medium-voltage switch and giving early warning to a key electrical switch; the report module is used for forming a report for the medium-voltage switch test result and selecting whether to send the report to the cloud, and the report can give a judgment whether the test result is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191997.5A CN112398220A (en) | 2020-10-30 | 2020-10-30 | Integrated intelligent testing device for medium-voltage switch of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191997.5A CN112398220A (en) | 2020-10-30 | 2020-10-30 | Integrated intelligent testing device for medium-voltage switch of nuclear power station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917234A (en) * | 2021-12-15 | 2022-01-11 | 卡斯柯信号(北京)有限公司 | Automatic calibration method for cage wiring of target controller |
| CN114167188A (en) * | 2021-12-08 | 2022-03-11 | 无锡中科电气设备有限公司 | Testing arrangement of low-voltage plate cabinet |
| CN114184948A (en) * | 2021-12-08 | 2022-03-15 | 无锡中科电气设备有限公司 | Testing device for medium-voltage switch |
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| CN109581216A (en) * | 2019-01-18 | 2019-04-05 | 阳江核电有限公司 | VD4 Medium voltage switch or circuit breaker all-around test stand and its dependency structure |
| CN111736068A (en) * | 2020-06-24 | 2020-10-02 | 无锡中科电气设备有限公司 | Intelligent detection method and system for medium-voltage distribution board |
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| CN109581216A (en) * | 2019-01-18 | 2019-04-05 | 阳江核电有限公司 | VD4 Medium voltage switch or circuit breaker all-around test stand and its dependency structure |
| CN111736068A (en) * | 2020-06-24 | 2020-10-02 | 无锡中科电气设备有限公司 | Intelligent detection method and system for medium-voltage distribution board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114167188A (en) * | 2021-12-08 | 2022-03-11 | 无锡中科电气设备有限公司 | Testing arrangement of low-voltage plate cabinet |
| CN114184948A (en) * | 2021-12-08 | 2022-03-15 | 无锡中科电气设备有限公司 | Testing device for medium-voltage switch |
| CN113917234A (en) * | 2021-12-15 | 2022-01-11 | 卡斯柯信号(北京)有限公司 | Automatic calibration method for cage wiring of target controller |
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