CN104897982B - The function test system and method for overcurrent protection fastener - Google Patents
The function test system and method for overcurrent protection fastener Download PDFInfo
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Abstract
The invention discloses a kind of function test systems and method of overcurrent protection fastener; when carrying out functional test to overcurrent protection fastener; the test case information configured by human-computer interaction module is sent to front end processor by background host computer; test case information is resolved to control command by front end processor; master control borad configures the respective channel in digital output module; relay protection tester configures its test voltage exported, and test voltage is exported through digital output module to adaptive device；Adaptive device improves the test voltage signal received, and the response voltage signal exported to overcurrent protection fastener improves；The response voltage signal that master control borad is exported through On-off signal plate acquisition adaptive device, and background host computer is uploaded to by front end processor, background host computer handles response voltage signal and test voltage signal, and is exported by human-computer interaction module.Implement technical scheme of the present invention, solves the problem that wiring is complicated, efficiency is low, more demanding to operating personnel.
Description
Technical Field
The invention relates to the field of nuclear power, in particular to a system and a method for testing functions of an overcurrent protection clamping piece.
Background
The nuclear power station overcurrent protection clamping piece is used as one of important components for circuit protection of a nuclear power station and is mainly used for circuit overcurrent protection in a nuclear power station power grid system. When the input current of the system is overlarge, the relay is controlled to act, and overcurrent protection is carried out. Most overcurrent protection clamping pieces of nuclear power stations in operation in China operate for decades, components of the overcurrent protection clamping pieces are consumed to a certain extent in the long-term operation process, and the functions and the performances of the clamping pieces are reduced. How to ensure that the functions and the performances of the over-current protection clamping piece meet the requirements of a power grid is an important guarantee for the safe and stable operation of the nuclear power station, so that the testing of the over-current protection clamping piece becomes an important link for the work of the nuclear power station.
The current nuclear power station adopts a manual test mode to regularly monitor the overcurrent protection function of the clamping piece so as to ensure the normal operation of the overcurrent protection clamping piece, the method has the defects that the wiring of a device is complex during ① test, workers are required to be familiar with the function and principle of the clamping piece, ② manual test cannot realize the automatic monitoring of the whole test process, and the workload of the workers is increased.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, the efficiency is low and the requirement on operators is high, and provides a function test system and a method of an overcurrent protection card, which have high test efficiency and low requirement on operators.
The technical scheme adopted by the invention for solving the technical problems is as follows: the functional test system for the overcurrent protection clamping piece is constructed and comprises a human-computer interaction module, a test signal source, a background host, a front-end processor, a switching power supply, an acquisition control device and an overcurrent protection clamping piece adapting device, wherein the test signal source comprises a relay protection tester, and the acquisition control device comprises a main control board, a switching value output board, an analog input board and a switching value input board; wherein,
the human-computer interaction module is used for receiving test case information configured by a user, sending the test case information to the background host, and outputting a test voltage signal and a response voltage signal;
the background host is connected with the man-machine interaction module and used for processing the received test case information and sending the test case information to the front-end processor; processing the received test voltage signal and response voltage signal and sending the processed test voltage signal and response voltage signal to the human-computer interaction module;
the front-end processor is connected with the background host and used for analyzing the received test case information into a control command and respectively sending the control command to the main control board and the relay protection tester; sending the received test voltage signal and the response voltage signal to the background host;
the main control board is connected with the front-end processor, the switching value output board, the analog input board and the switching value input board and is used for configuring corresponding channels in the switching value output board according to the received control commands; collecting a response voltage signal output by the overcurrent protection card adapting device through the switching value input plate, and collecting a test voltage signal through the analog value input plate;
the relay protection tester is connected with the front-end processor and the switching value output board, and is used for configuring the test voltage output by the relay protection tester according to the received control command and outputting the test voltage to the overcurrent protection card adapting device through a corresponding channel of the switching value output board;
the switching power supply is connected with the switching value output plate and used for outputting voltage to the overcurrent protection clamping piece adapting device through a corresponding channel of the switching value output plate so as to provide working voltage for the overcurrent protection clamping piece;
the overcurrent protection clamping piece adapting device is connected with the switching value output plate and the switching value input plate and is used for conditioning the received test voltage signal and sending the conditioned test voltage signal to the overcurrent protection clamping piece; and conditioning the response voltage signal output by the over-current protection card.
In the function test system of the overcurrent protection card, the function test system of the overcurrent protection card also comprises a cabinet, and the front-end processor, the switching power supply, the acquisition control device and the overcurrent protection card adapting device are all arranged in the cabinet.
In the function test system of the overcurrent protection card, the background host is also used for calling the waveform of the standard voltage signal under the standard working condition stored in the case library, comparing the waveform with the waveform of the response voltage signal obtained by testing, and outputting a fault alarm signal to the man-machine interaction module if the fluctuation exceeds a preset range.
In the functional test system of the overcurrent protection card of the invention, the adapting device of the overcurrent protection card comprises:
the alternating current-direct current isolation module is used for isolating the test voltage signal, the response voltage signal and the power supply voltage signal;
and the conversion module is used for converting the action signal of the relay of the overcurrent protection clamping piece.
In the function test system of the overcurrent protection clamping piece, a plurality of interlayers are arranged in the cabinet, and the front-end processor, the switching power supply, the acquisition control device and the overcurrent protection clamping piece are respectively arranged in the corresponding interlayers.
In the function test system of the over-current protection clamping piece, at least one guide rail for inserting the over-current protection clamping piece is arranged on the upper surface of the bottom plate of the interlayer corresponding to the over-current protection clamping piece, the over-current protection clamping piece adapting device is vertically arranged with the guide rail, a first terminal row is arranged on the over-current protection clamping piece, and a second terminal row which is inserted with the first terminal row when the over-current protection clamping piece is inserted is arranged on the over-current protection clamping piece adapting device.
In the function test system of the overcurrent protection card, the cabinet is provided with a third terminal row connected with the second terminal row of the overcurrent protection card adapting device.
In the function test system of the overcurrent protection clamping piece, an optical coupler is arranged on each channel of the switching value input plate.
In the function test system of the overcurrent protection clamping piece, each channel of the switching value output board is provided with a relay.
The invention also constructs a method for performing function test by using the function test system of the over-current protection card, and when the function test is performed on the over-current protection card, the following steps are performed:
A. the background host computer processes the test case information configured by the human-computer interaction module and then sends the test case information to the front-end processor;
B. the front-end processor analyzes the received test case information into control commands and respectively sends the control commands to the main control board and the relay protection tester;
C. the main control board configures corresponding channels in the switching value output board according to the received control command, the relay protection tester configures the test voltage output by the relay protection tester according to the received control command, and the test voltage is output to the overcurrent protection card adapting device through the switching value output board;
D. the overcurrent protection card adapting device conditions the received test voltage signal and sends the conditioned test voltage signal to the overcurrent protection card, and conditions a response voltage signal output by the overcurrent protection card;
E. the main control board collects a response voltage signal output by the overcurrent protection card adapting device through the switching value input board, collects the test voltage signal through the analog value input board, and uploads the test voltage signal to the background host through the front-end processor;
F. and the background host processes the response voltage signal and the test voltage signal and outputs the processed response voltage signal and the test voltage signal through the human-computer interaction module.
In the method for testing the function of the overcurrent protection card, after the step E, the method further comprises the following steps:
and the background host calls the waveform of the standard voltage signal under the standard working condition stored in the case library, compares the waveform with the waveform of the response voltage signal obtained by testing, and outputs a fault alarm signal through the man-machine interaction module if the fluctuation exceeds a preset range.
In the method for testing the function of the overcurrent protection card, in the step a, the configured test case information includes:
configuring the running time and the stopping time of the relay protection tester, and configuring the relay protection tester to output at least one path of single-phase alternating-current voltage which changes according to a specific step length within a specific range;
configuring the starting time and the stopping time of the switching power supply;
and configuring the switch state of the corresponding channel in the switching value output plate.
By implementing the technical scheme of the invention, the function test system simulates the long-term continuous work of the over-current protection clamping piece under the condition that the over-current protection clamping piece is separated from the nuclear power station application system, realizes the automatic and intelligent function test of the over-current protection clamping piece, and solves the problems of complex test wiring, low efficiency and higher requirement on operators of the over-current protection clamping piece by using the prior art.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a logic diagram of a first embodiment of a system for testing the functions of an overcurrent protection card according to the invention;
FIG. 2 is a structural diagram of an overcurrent protection card and an overcurrent protection card adapting device in the function test system of the overcurrent protection card of the invention;
FIG. 3 is a circuit diagram of a second embodiment of the system for testing the function of the over-current protection card of the present invention;
fig. 4 is a flowchart of a first method for testing the function of the overcurrent protection card according to the embodiment of the invention.
Detailed Description
Fig. 1 is a logic diagram of a first embodiment of a function test system of an overcurrent protection card according to the present invention, the function test system of the overcurrent protection card includes a human-computer interaction module 108, a test signal source 103, a background host 107, a front-end processor 102, a switching power supply 109, an acquisition control device 104, an overcurrent protection card adapting device 105, and an overcurrent protection card 106 to be tested. The test signal source 103 includes a relay protection tester 1031, and the acquisition control device 104 includes a main control board 1041, a switching value output board 1042, an analog value input board 1043, and a switching value input board 1044. Moreover, the front-end processor 102 is connected with the background host 107 and the acquisition control device 104 through ethernet ports, the test signal source 103 is respectively connected with the front-end processor 102 and the acquisition control device 104, the switching power supply 109 is connected with the acquisition control device 104, the output of the acquisition control device 104 forms an electrical port connection with the overcurrent protection card adapting device 105, and the overcurrent protection card adapting device 105 forms an electrical port connection with the overcurrent protection card 106.
In this embodiment, the functions of the parts are as follows:
the human-computer interaction module 108 is used for receiving test case information configured by a tester and sending the test case information to the background host 107, displaying the waveform of a test voltage signal and the waveform of a response voltage signal of the over-current protection card 106 in real time, and displaying equipment information of the over-current protection card 106;
the background host 107 is connected to the human-computer interaction module 108, and is used for receiving and processing test case information and sending the test case information to the front-end processor 102; the received test voltage signal and the response voltage signal are processed and sent to the human-computer interaction module 108; related data of the over-current protection card 106, such as a response voltage signal output by the over-current protection card 106, relay action time of the over-current protection card 106 and the like, are also stored;
the front-end processor 102 is connected to the background host 107, and configured to analyze the received test case information into a control command, and issue the control command to the main control board 1041 and the relay protection tester 1031, respectively; and sending the received test voltage signal and response voltage signal to the background host 107;
a main control board 1041 connected to the front-end processor 102, the switching value output board 1042, the analog input board 1043, and the switching value input board 1044, and configured to configure corresponding channels in the switching value output board 1042 according to the received control command; collecting a response voltage signal output by the overcurrent protection card adapting device 105 through a switching value input plate 1044, and collecting a test voltage signal through an analog input plate 1043;
the relay protection tester 1031 is connected to the front-end processor 102 and the switching value output board 1042, and is configured to configure the test voltage output by the relay protection tester 1031 according to the received control command, for example, to output a two-path single-phase alternating-current voltage source with an output step length varying according to 0.1V and a range of 0-10V, and to output the test voltage to the overcurrent protection card adapting device 105 through a corresponding channel of the switching value output board 1042;
the switching power supply 109 is connected to the switching value output plate 1042 and used for outputting voltage to the over-current protection card adapting device 105 through a corresponding channel of the switching value output plate 1042 so as to provide working voltage for the over-current protection card 106;
the switching value output board 1042 is used for providing a test voltage and a power supply voltage for the overcurrent protection card 106 to be tested through the overcurrent protection card adapting device 105;
an analog quantity input board 1043 for acquiring a waveform of a test voltage provided by the relay protection tester 1031;
the switching value input board 1044 is used for acquiring a response voltage signal of the over-current protection card 106 through the over-current protection card adapting device 105;
the overcurrent protection card adapting device 105 is connected to the switching value output board 1042 and the switching value input board 1044, the overcurrent protection card adapting device 105 is a signal conditioning circuit specially designed for the overcurrent protection card 106 to be tested, the signal conditioning circuit comprises an alternating current and direct current isolation module and a conversion module, wherein the alternating current and direct current isolation module is used for isolating a test voltage signal, a response voltage signal and a power supply voltage signal; the conversion module is used for converting an action signal of a relay of the overcurrent protection clamping piece;
when the functional test system of this embodiment is used to perform a functional test on the overcurrent protection card, the background host 107 processes the test case information configured by the human-computer interaction module 108 and then sends the processed test case information to the front-end processor 102, the front-end processor 102 parses the received test case information into a control command, and sends the control command to the main control board 1041 and the relay protection tester 1031, the main control board 1041 configures a corresponding channel in the switching value output board 1042 according to the received control command, the relay protection tester 1031 configures the test voltage output by the relay protection tester 1031 according to the received control command, and outputs the test voltage to the overcurrent protection card adapting device 105 through the switching value output board 1042;
the overcurrent protection card adapting device 105 conditions the received test voltage signal and sends the conditioned test voltage signal to the overcurrent protection card 106, and conditions the response voltage signal output by the overcurrent protection card 106;
the main control board 1041 collects a response voltage signal output by the overcurrent protection card adapting device 105 through the switching value input board 1044, collects the test voltage signal through the analog value input board 1043, and uploads the test voltage signal to the background host 107 through the front-end processor 102, and the background host 107 processes the response voltage signal and the test voltage signal and outputs the response voltage signal and the test voltage signal through the human-computer interaction module 108.
Preferably, the background host 107 is further configured to call a waveform of the standard voltage signal under the standard working condition stored in the case library, compare the waveform with a waveform of the response voltage signal obtained through the test, and output a fault alarm signal to the human-computer interaction module 108 if the fluctuation exceeds a preset range.
The front-end processor 102, the switching power supply 109, the acquisition control device 104, the overcurrent protection card adapting device 105 and the overcurrent protection card 106 are all arranged in the cabinet 101. Moreover, a plurality of partition layers are arranged in the cabinet 101, and the front-end processor 102, the switching power supply 109, the acquisition control device 104 and the overcurrent protection card 106 are respectively arranged in the corresponding partition layers. Furthermore, two guide rails 1092 (only two are shown in the figure, and in other embodiments, other numbers may be used, that is, the overcurrent protection latches can be tested in batch) are disposed on the upper surface of the bottom plate 1091 of the partition corresponding to the overcurrent protection latches 106, and the guide rails 1092 are used for inserting the overcurrent protection latches 106. Overcurrent protection fastener adapter 105 and guide rail 1092 are placed perpendicularly, are provided with first terminal row (not shown) on overcurrent protection fastener 106, are provided with second terminal row 1093 on the overcurrent protection fastener adapter, and when overcurrent protection fastener 106 inserted along guide rail 1092, this second terminal row 1093 was pegged graft with the first terminal row on the overcurrent protection fastener 106. Therefore, plug and play of the overcurrent protection card 106 can be realized, and the steps of experimental operation are effectively reduced.
In addition, a third terminal row connected with the second terminal row 1093 of the overcurrent protection card adapting device 105 is arranged on the cabinet 101, so that the problem of complex wiring in the test process can be solved. Namely, the terminal of each overcurrent protection card piece adapter device is provided with a cabinet terminal corresponding to the terminal, and the terminals are led out from the cabinet terminal, and the corresponding relation is shown as a table:
fig. 3 is a circuit diagram of a second embodiment of the system for testing the function of the overcurrent protection card according to the present invention, in which a relay is disposed on each channel of the switching value output board 1042, and only the switch contacts CJ01 and CJ05 of the relays corresponding to the test voltages of the a phase and the C phase output by the relay protection tester 1031 are shown. Each channel of the switching value input board 1044 is provided with an optical coupler, and only light emitting diodes KI76 and KI77 in the two optical couplers are shown in the figure. A voltage transformer is provided on each channel of the analog input board 1043, and only the voltage transformers Ua and Uc corresponding to the test voltages of the a phase and the C phase output from the relay protection tester 1031 are shown in the figure.
In this embodiment, the time switch and the setting switch on the panel of the overcurrent protection trip 106 are first set to the minimum scale. Then, referring to fig. 2, the overcurrent protection clip 106 is inserted into the overcurrent protection clip adapter 105 along the guide rail 1092 and has its first terminal row connected to the second terminal row 1093 of the overcurrent protection clip adapter.
With reference to fig. 1 and fig. 3, when a tester issues the setting value test case information of the configured overcurrent protection card 106 from the human-computer interaction module 108, the background host 107 issues a test case to the front-end processor 102, where the test case information of this embodiment includes: configuring parameters such as the A phase and the C phase of the relay protection tester 1031, which respectively output slowly-changing single-phase alternating-current voltage of 0-10V, the running time and the stopping time of the relay protection tester 1031; parameters such as the start time and stop time of the switching power supply 109 are configured. The front-end processor 102 analyzes the received test case information into a control command, and issues the control command to the relay protection tester 1031 and the main control board 1041, respectively, so that the relay protection tester 1031 and the main control board 1041 perform corresponding initialization. The main control board 1041 configures the switching value output board 1042 according to the control command, the relay protection tester 1031 configures the test voltages output by the a phase and the C phase according to the control command, and outputs the test voltages to the pin 1 and the pin 3 of the over-current protection card adapting device through the switches CJ01 and CJ05 of the switching value output board 1042, so as to be coupled to the pin 1 and the pin 3 of the over-current protection card 106. The switching power supply 109 outputs a dc voltage to the overcurrent protection card through the overcurrent protection card adapter 105, so that it has a working power supply. Thus, a switching power supply, such as a 24V switching power supply, is connected between the pin 11 and the pin 5 of the over-current protection card 106 through the over-current protection card adapting device 105, the pin 1 and the pin 3 of the over-current protection card 106 are respectively connected to a single-phase alternating-current adjustable test voltage through the over-current protection card adapting device 105, and the amplitude of the test voltage changes slowly from 0V to 10V. At the same time. Pins 6 and 9 of the over-current protection clip 106 output waveforms of the response voltage. In addition, the main control board 1041 collects the test voltage of the overcurrent protection card adapting device 105 through the analog input board 1043, and the main control board 1041 collects the response voltage of the overcurrent protection card adapting device 105 through the switching value input board 1044. The waveforms of the response voltage and the test voltage are displayed on the human-computer interaction module 108 in real time, and setting values of the indicator light relay and the open circuit protection relay corresponding to the pin 6 and the pin 9 of the over-current protection card 106 can be verified through the displayed waveforms, so that the function test of the setting value of the over-current protection card 106 is realized.
When a tester issues the configured action time fixed value test case information of the overcurrent protection card 106 from the man-machine interaction module, the test process is the same as the setting value test process, and the description is omitted. When the waveforms of the response voltage and the test voltage are displayed on the human-computer interaction module 108 in real time, the action time of the indicator light relay and the open circuit protection relay corresponding to the pin 6 and the pin 9 of the over-current protection card 106 can be determined through the displayed waveforms, so that the action time fixed value function test of the over-current protection card 106 is realized.
In conclusion, the whole process of testing the overcurrent protection card does not need a large amount of wiring, the overcurrent protection card can be used in a plug-and-play mode, the testing process is humanized and intelligent, and automation, batch testing and analysis of overcurrent protection setting value action testing and action time constant value testing of the card are realized in an all-round mode.
Fig. 4 is a flowchart of a first embodiment of the method for testing the functions of the overcurrent protection card according to the present invention, and when the function test system is used to perform the function test on the overcurrent protection card, the following steps are performed:
A. the background host computer processes the test case information configured by the human-computer interaction module and then sends the test case information to the front-end processor, and in the step, the configured test case information comprises the following steps: configuring the running time and the stopping time of the relay protection tester, and configuring the relay protection tester to output at least one path of single-phase alternating-current voltage which changes according to a specific step length within a specific range; configuring the starting time and the stopping time of the switching power supply; configuring the switching state of a corresponding channel in the switching value output board;
B. the front-end processor analyzes the received test case information into control commands and respectively sends the control commands to the main control board and the relay protection tester;
C. the main control board configures corresponding channels in the switching value output board according to the received control command, the relay protection tester configures the test voltage output by the relay protection tester according to the received control command, and the test voltage is output to the adapter device through the switching value output board;
D. the adaptive device conditions the received test voltage signal and sends the conditioned test voltage signal to the overcurrent protection card, and conditions a response voltage signal output by the overcurrent protection card;
E. the main control board collects the response voltage signal output by the adapter device through the switching value input board, collects the test voltage signal through the analog value input board, and uploads the test voltage signal to the background host through the front-end processor;
F. and the background host processes the response voltage signal and the test voltage signal and outputs the processed response voltage signal and the test voltage signal through the human-computer interaction module.
Preferably, after the step E, the method further comprises:
and the background host calls the waveform of the standard voltage signal under the standard working condition stored in the case library, compares the waveform with the waveform of the response voltage signal obtained by testing, and outputs a fault alarm signal through the man-machine interaction module if the fluctuation exceeds a preset range.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A functional test system of an overcurrent protection clamping piece is characterized by comprising a human-computer interaction module, a test signal source, a background host, a front-end processor, a switching power supply, an acquisition control device, an overcurrent protection clamping piece adapting device and a plurality of guide rails for inserting the overcurrent protection clamping piece, wherein the test signal source comprises a relay protection tester, and the acquisition control device comprises a main control board, a switching value output board, an analog input board and a switching value input board; wherein,
the human-computer interaction module is used for receiving test case information configured by a tester, sending the test case information to the background host, and outputting a test voltage signal and a response voltage signal;
the background host is connected with the man-machine interaction module and used for processing the received test case information and sending the test case information to the front-end processor; processing the received test voltage signal and response voltage signal and sending the processed test voltage signal and response voltage signal to the human-computer interaction module;
the front-end processor is connected with the background host and used for analyzing the received test case information into a control command and respectively sending the control command to the main control board and the relay protection tester; sending the received test voltage signal and the response voltage signal to the background host;
the main control board is connected with the front-end processor, the switching value output board, the analog input board and the switching value input board and is used for configuring corresponding channels in the switching value output board according to the received control commands; collecting a response voltage signal output by the overcurrent protection card adapting device through the switching value input plate, and collecting a test voltage signal through the analog value input plate;
the relay protection tester is connected with the front-end processor and the switching value output board and used for configuring the test voltage signal output by the relay protection tester according to the received control command and outputting the test voltage signal to the overcurrent protection card adapting device through a corresponding channel of the switching value output board;
the switching power supply is connected with the switching value output plate and used for outputting voltage to the overcurrent protection clamping piece adapting device through a corresponding channel of the switching value output plate so as to provide working voltage for the overcurrent protection clamping piece;
the overcurrent protection clamping piece adapting device is connected with the switching value output plate and the switching value input plate and is used for conditioning the received test voltage signal and sending the conditioned test voltage signal to the overcurrent protection clamping piece; conditioning the response voltage signal output by the over-current protection card; furthermore, it is possible to provide a liquid crystal display device,
the overcurrent protection clamping piece is provided with a first terminal row, the overcurrent protection clamping piece adapting device is provided with a plurality of second terminal rows, and when the overcurrent protection clamping piece is inserted along the corresponding guide rail, the first terminal row of the overcurrent protection clamping piece is inserted with the corresponding second terminal row;
the function test system of the overcurrent protection clamping piece also comprises a cabinet, wherein the front-end processor, the switching power supply, the acquisition control device and the overcurrent protection clamping piece adapting device are all arranged in the cabinet;
and a third terminal row connected with the second terminal row of the overcurrent protection card piece adapting device is arranged on the cabinet.
2. The system for testing the function of the overcurrent protection card according to claim 1, wherein the background host is further configured to call a waveform of the standard voltage signal stored in the case library under the standard working condition, compare the waveform with a waveform of the response voltage signal obtained by the test, and output a fault alarm signal to the human-computer interaction module if the fluctuation exceeds a preset range.
3. The system for testing the function of the overcurrent protection card according to claim 1, wherein the overcurrent protection card adapting device comprises:
the alternating current-direct current isolation module is used for isolating the test voltage signal, the response voltage signal and the power supply voltage signal;
and the conversion module is used for converting the action signal of the relay of the overcurrent protection clamping piece.
4. The system for testing the function of the overcurrent protection card according to claim 1, wherein a plurality of partitions are disposed in the cabinet, and the front-end processor, the switching power supply, the acquisition control device, and the overcurrent protection card are disposed in the respective partitions.
5. The system for testing the functionality of an overcurrent protection card according to claim 4, wherein the guide rail is disposed on the top surface of the bottom plate of the compartment to which the overcurrent protection card corresponds, and the overcurrent protection card adapting device is disposed perpendicular to the guide rail.
6. The functional test system of the overcurrent protection card according to claim 1, wherein an optocoupler is provided on each channel of the switching value input board.
7. The system for testing the function of the overcurrent protection card according to claim 1, wherein a relay is provided on each channel of the switching value output board.
8. A method for performing a functional test using the functional test system of the overcurrent protection card according to claim 1, wherein, when performing the functional test on the overcurrent protection card, the following steps are performed:
A. the background host computer processes the test case information configured by the human-computer interaction module and then sends the test case information to the front-end processor;
B. the front-end processor analyzes the received test case information into control commands and respectively sends the control commands to the main control board and the relay protection tester;
C. the main control board configures corresponding channels in the switching value output board according to the received control command, the relay protection tester configures test voltage signals output by the relay protection tester according to the received control command, and the test voltage signals are output to the overcurrent protection card adapting device through the switching value output board;
D. the overcurrent protection card adapting device conditions the received test voltage signal and sends the conditioned test voltage signal to the overcurrent protection card, and conditions a response voltage signal output by the overcurrent protection card;
E. the main control board collects a response voltage signal output by the overcurrent protection card adapting device through the switching value input board, collects the test voltage signal through the analog value input board, and uploads the test voltage signal to the background host through the front-end processor;
F. and the background host processes the response voltage signal and the test voltage signal and outputs the processed response voltage signal and the test voltage signal through the human-computer interaction module.
9. The method of functional testing according to claim 8, further comprising, after said step E:
and the background host calls the waveform of the standard voltage signal under the standard working condition stored in the case library, compares the waveform with the waveform of the response voltage signal obtained by testing, and outputs a fault alarm signal through the man-machine interaction module if the fluctuation exceeds a preset range.
10. The method according to claim 8, wherein in the step a, the configured test case information includes:
configuring the running time and the stopping time of the relay protection tester, and configuring the relay protection tester to output at least one path of single-phase alternating-current voltage which changes according to a specific step length within a specific range;
configuring the starting time and the stopping time of the switching power supply;
and configuring the switch state of the corresponding channel in the switching value output plate.
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| CN105577481A (en) * | 2016-02-03 | 2016-05-11 | 中广核核电运营有限公司 | System and method for testing performance of alternating current sensitive components of inversion control interface card of inverter |
| CN110967588A (en) * | 2019-12-26 | 2020-04-07 | 浙江中控技术股份有限公司 | Card testing system and method |
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