CN115436733A - Relay protection testing device for multi-path outlet signals - Google Patents
Relay protection testing device for multi-path outlet signals Download PDFInfo
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- CN115436733A CN115436733A CN202211114472.0A CN202211114472A CN115436733A CN 115436733 A CN115436733 A CN 115436733A CN 202211114472 A CN202211114472 A CN 202211114472A CN 115436733 A CN115436733 A CN 115436733A
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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Abstract
The invention provides a relay protection testing device for multi-channel outlet signals, which is used for testing a target relay protection device and comprises a voltage and current output module, a current and voltage detection module and a current and voltage detection module, wherein the voltage and current output module is used for outputting voltage signals and current signals; the switching value signal module is used for outputting a corresponding switching value signal; the opening signal module is used for collecting an opening signal output by the target relay protection device; the processing module is used for calling a corresponding test program according to the control instruction and determining an output switching value signal, a voltage signal and a current signal according to the called test program; generating a corresponding outlet state matrix according to the collected opening signal, and judging whether the target relay protection device passes the test or not; and the test module is used for setting and editing the test program library and matching the corresponding test program according to the received control instruction. The invention can complete automatic test, avoid repeated setting of parameters of the microcomputer relay protection test device, complete all test work and improve work efficiency.
Description
Technical Field
The invention relates to the technical field of microcomputer relay protection device testing, in particular to a relay protection testing device for multi-channel outlet signals.
Background
The modern microcomputer relay protection device (hereinafter referred to as relay protection device) judges whether a line or a transformer has a fault by monitoring secondary voltage and current signals, thereby realizing bypass or power-off protection by a relay output control action actuating mechanism and reducing or avoiding economic loss or major accidents caused by the fault of the line or the transformer. Therefore, it is important to periodically check whether the sampling and action executing mechanism (i.e. output relay or outlet signal) of the relay protection device is working normally. The microcomputer relay protection device has a large number of outlet signals and a complex corresponding switch state matrix relation, and a large amount of time is consumed for detecting whether the action is normal or not.
However, the conventional relay protection testing device does not have a special outlet signal (relay output contact) detection function, and can only simply judge the on-off or level state of a single or a plurality of outlet signals through a switching value input contact, and even cannot complete the automatic testing work of the microcomputer relay protection device according to the outlet signal matrix state. The following problems exist in summary: 1) A large amount of time and energy of field inspection personnel are consumed to complete the work of constant value inspection of the protection device and the judgment of outlet signal action; 2) The power failure time of a corresponding transformer substation or line is long, and the power consumption of residents or enterprises and public institutions in a corresponding power supply area is influenced.
Disclosure of Invention
The invention aims to provide a relay protection testing device for multi-path outlet signals, and solves the technical problems that the traditional microcomputer relay protection device needs to repeat a switching device and frequently replace cables when the switching value is used for inputting and detecting outlet signals, and the time waste caused by cable replacement is saved.
In one aspect, a relay protection testing device for multi-path outlet signals is provided, and is used for testing a target relay protection device, and the relay protection testing device comprises:
the voltage and current output module is used for outputting a voltage signal and a current signal to the target relay protection device;
the switching value signal module is used for outputting a corresponding switching value signal to the target relay protection device;
the output signal module is used for collecting an output signal output by the target relay protection device after the target relay protection device receives the switching value signal, the voltage signal and the current signal;
the processing module is used for calling a corresponding test program from a preset test program library according to an input control instruction, and determining a switching value signal, a voltage signal and a current signal which are output to the target relay protection device during testing according to the called test program; generating a corresponding exit state matrix according to the collected opening signal, and judging whether the target relay protection device passes the test or not according to the exit state matrix;
the test module is used for setting and editing the test program library, matching the corresponding test program according to the received control instruction and outputting the matched test program to the processing module.
Preferably, the voltage current output module specifically includes:
the voltage output unit is connected with the voltage input end of the target relay protection device and used for sequentially outputting voltage signals to be output during testing to the target relay protection device according to the testing time corresponding to the testing program;
and the current output unit is connected with the current input end of the target relay protection device and used for sequentially outputting current signals needing to be output during testing to the target relay protection device according to the testing time corresponding to the testing program.
Preferably, the switching value signal module is connected to a switching signal input end of the target relay protection device, and is configured to sequentially output switching signals to be output during testing to the target relay protection device according to the testing time corresponding to the testing program.
Preferably, the output signal module is connected to an output signal output end of the target relay protection device, and is configured to collect an output signal generated by the target relay protection device during testing, and sequentially arrange and output the output signal to the processing module according to the testing time corresponding to the testing program.
Preferably, the processing module is specifically configured to determine corresponding test content according to the received control instruction, and identify a corresponding test program identifier according to the test content;
sending the test program identification to the test module, and receiving a returned test program;
determining test items which are sequentially carried out according to the time sequence during testing according to the received test program content;
and sequentially determining the switching value signal, the voltage signal and the current signal which are required to be generated in sequence according to the time sequence according to the test items.
Preferably, the test module is specifically configured to match a corresponding test program from a preset test program library according to the received test program identifier,
when the corresponding test program is matched, outputting the test program to the processing module;
and when the test program is not matched with the corresponding test program, returning a corresponding error identifier.
Preferably, the processing module is further configured to, when a test is started, sequentially perform test items in time sequence and output corresponding switching value signals and/or voltage signals and/or current signals;
and sequentially receiving the switching value signals collected by the switching value signal module according to a time sequence, and arranging and combining the change positions of the switching value signals into a corresponding outlet state matrix according to the time sequence.
Preferably, the processing module is further configured to compare the generated exit state matrix with a preset matrix standard,
if the change positions of the switching value signals of the generated outlet state matrix at the moment in the test time all accord with a preset matrix standard, judging that the target relay protection device passes the test;
and if the change position of the switching value signal of the generated outlet state matrix at a certain moment in the test time does not accord with the preset matrix standard, judging that the target relay protection device does not pass the test.
Preferably, the processing module is further specifically configured to, when an error identifier is received, match and output corresponding reminding information according to the error identifier.
Preferably, the method further comprises the following steps:
and the display module is used for displaying the generated test result, the reminding information and the test items, wherein the test result comprises that the target relay protection device passes or fails the test.
In summary, the embodiment of the invention has the following beneficial effects:
the relay protection testing device for the multi-path outlet signals is accessed through the special outlet signal monitoring interface, so that the problems that a traditional microcomputer relay protection device needs to repeat a switching device and frequently replace cables when the switching value is used for inputting and detecting the outlet signals are avoided, and time waste caused by cable replacement is greatly saved.
The automatic testing is completed by combining the outlet signal matrix with the testing template, so that the repeated setting of parameters of the microcomputer relay protection testing device is avoided, all testing works of the corresponding relay protection device are completed by one key through simple leading-in of the testing template, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a relay protection testing apparatus for multi-channel outlet signals according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an embodiment of a relay protection testing apparatus for multiple outlet signals according to the present invention. In this embodiment, the apparatus is used for testing a target relay protection apparatus, and includes:
the voltage and current output module is used for outputting a voltage signal and a current signal to the target relay protection device; the switching value signal module is used for outputting a corresponding switching value signal to the target relay protection device; the output signal module is used for acquiring an output signal output by the target relay protection device after the target relay protection device receives the switching value signal, the voltage signal and the current signal; the processing module is used for calling a corresponding test program from a preset test program library according to an input control instruction and determining a switching value signal, a voltage signal and a current signal which are output to the target relay protection device during testing according to the called test program; generating a corresponding exit state matrix according to the collected opening signal, and judging whether the target relay protection device passes the test or not according to the exit state matrix; and the test module is used for setting and editing the test program library, matching the corresponding test program according to the received control instruction and outputting the matched test program to the processing module. That is, when a test is required, the target relay protection device is connected with the relay protection test device for multi-channel outlet signals to perform a test, when the test is required, the voltage and current output module, the switching value signal module and the output signal module are respectively connected with the corresponding interfaces of the target relay protection device through corresponding wires, a control instruction is input to start the test, and the processing module and the test module automatically process and determine a test result during the test, so that no manual work excessively interferes and operates.
In this embodiment, the voltage/current output module specifically includes: the voltage output unit is connected with a voltage input end of the target relay protection device and used for sequentially outputting voltage signals required to be output during testing to the target relay protection device according to the testing time corresponding to the testing program; and the current output unit is connected with the current input end of the target relay protection device and used for sequentially outputting current signals needing to be output during testing to the target relay protection device according to the testing time corresponding to the testing program. It can be understood that the voltage output unit may be a device such as a voltage output terminal capable of outputting a specified voltage value, and the current output unit may be a device such as a current output terminal capable of outputting a specified current value, and is connected to the target electromechanical protection device through a test line to output a corresponding voltage or current value.
In this embodiment, the switching value signal module is connected to a switching signal input end of the target relay protection device, and is configured to sequentially output, to the target relay protection device, switching signals that need to be output during a test according to test time corresponding to the test program. Understandably, the switching value signal module can be a switching value input/output terminal which is connected with a corresponding port of the target electromechanical protection device through a signal line and outputs a corresponding switching value signal.
In this embodiment, the open signal module is connected to an open signal output end of the target relay protection device, and is configured to collect an open signal generated by the target relay protection device during a test, and sequentially arrange and output the open signal to the processing module according to the test time corresponding to the test program. Understandably, the output signal module can be an output signal input terminal, is connected with a corresponding port of the target electromechanical protection device through a signal wire, and can receive a signal output by the target electromechanical protection device.
In this embodiment, the processing module is specifically configured to determine corresponding test content according to the received control instruction, and identify a corresponding test program identifier according to the test content; sending the test program identification to the test module, and receiving a returned test program; determining test items which are sequentially carried out according to the time sequence during testing according to the received test program content; and sequentially determining the switching value signal, the voltage signal and the current signal which need to be generated in sequence according to the time sequence according to the test items.
Specifically, the processing module is further configured to, when a test is started, sequentially perform test items in time sequence and output corresponding switching value signals and/or voltage signals and/or current signals; and sequentially receiving the switching value signals collected by the switching value signal module according to a time sequence, and arranging and combining the change positions of the switching value signals into a corresponding outlet state matrix according to the time sequence. Comparing the generated outlet state matrix with a preset matrix standard, and if the change positions of the switching value signals of the generated outlet state matrix at the moment in the test time all accord with the preset matrix standard, judging that the target relay protection device passes the test; and if the change position of the switching value signal of the generated outlet state matrix at a certain moment in the test time does not accord with the preset matrix standard, judging that the target relay protection device does not pass the test.
Understandably, the processing module can be an upper computer or embedded industrial personal computer control in the device. The processing module takes a pre-edited test template or test program as a test flow input item and judges whether the test structure passes or not by combining an outlet state matrix fed back by the outlet signal. The test template or the test program is edited and stored through the test module, and when the test is needed, the test template or the test program is called according to the control instruction to determine the corresponding test flow and test items. The automatic testing is completed by combining the outlet signal matrix with the testing template, so that the repeated setting of parameters of the microcomputer relay protection testing device is avoided, all testing works of the corresponding relay protection device are completed by one key through the simple importing of the testing template, and the working efficiency is improved. Furthermore, the device has an outlet signal matrix detection function; the automatic test flow based on the test template is provided; the outlet signal matrix detection function hardware input port function: the passive empty contact or potential contact signal can be input; in the mode with potential contacts, the overturning level can be set; in the mode of the contact with the potential, the contact level can be displayed in real time.
In this embodiment, the processing module is further specifically configured to, when an error identifier is received, match and output corresponding prompting information according to the error identifier, and display the prompting information through the display module. It should be noted that the device may further include a display module, configured to display the generated test result, the prompt message, and the test item, where the test result includes that the target relay protection device passes or fails the test. Or the parameters and the results can be directly output to the corresponding ports or equipment.
In summary, the embodiment of the invention has the following beneficial effects:
the relay protection testing device for the multi-path outlet signals is accessed through the special outlet signal monitoring interface, so that the problems that a traditional microcomputer relay protection device needs to repeat a switching device and frequently replace cables when the switching value is used for inputting and detecting the outlet signals are avoided, and time waste caused by cable replacement is greatly saved.
The automatic testing is completed by combining the outlet signal matrix with the testing template, so that the repeated setting of parameters of the microcomputer relay protection testing device is avoided, all testing works of the corresponding relay protection device are completed by one key through the simple importing of the testing template, and the working efficiency is improved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A relay protection testing device for a multi-path output signal, for testing a target relay protection device, comprising:
the voltage and current output module is used for outputting a voltage signal and a current signal to the target relay protection device;
the switching value signal module is used for outputting a corresponding switching value signal to the target relay protection device;
the opening signal module is used for collecting an opening signal output by the target relay protection device after the target relay protection device receives the switching value signal, the voltage signal and the current signal;
the processing module is used for calling a corresponding test program from a preset test program library according to an input control instruction and determining a switching value signal, a voltage signal and a current signal which are output to the target relay protection device during testing according to the called test program; generating a corresponding exit state matrix according to the collected opening signal, and judging whether the target relay protection device passes the test or not according to the exit state matrix;
and the test module is used for setting and editing the test program library, matching the corresponding test program according to the received control instruction and outputting the matched test program to the processing module.
2. The apparatus of claim 1, wherein the voltage current output module specifically comprises:
the voltage output unit is connected with a voltage input end of the target relay protection device and used for sequentially outputting voltage signals required to be output during testing to the target relay protection device according to the testing time corresponding to the testing program;
and the current output unit is connected with the current input end of the target relay protection device and used for sequentially outputting current signals to be output during testing to the target relay protection device according to the testing time corresponding to the testing program.
3. The device of claim 1, wherein the switching value signal module is connected to a switching signal input terminal of the target relay protection device, and is configured to sequentially output switching signals to be output during a test to the target relay protection device according to a test time corresponding to the test program.
4. The device of claim 1, wherein the open signal module is connected to an open signal output terminal of the target relay protection device, and is configured to collect an open signal generated by the target relay protection device during a test, and sequentially arrange and output the open signal to the processing module according to a test time corresponding to the test program.
5. The apparatus according to any one of claims 2 to 4, wherein the processing module is specifically configured to determine corresponding test content according to the received control instruction, and identify a corresponding test program identifier according to the test content;
sending the test program identification to the test module, and receiving a returned test program;
determining test items which are sequentially carried out according to the time sequence during testing according to the received test program content;
and sequentially determining the switching value signal, the voltage signal and the current signal which need to be generated in sequence according to the time sequence according to the test items.
6. The apparatus of claim 5, wherein the test module is specifically configured to, based on the received test program identifier, match a corresponding test program from a preset test program library,
when the corresponding test program is matched, outputting the test program to the processing module;
and when the test program is not matched with the corresponding test program, returning a corresponding error identifier.
7. The device according to claim 6, wherein the processing module is further configured to, when the test is started, sequentially perform the test items in time sequence and output corresponding switching value signals and/or voltage signals and/or current signals;
and sequentially receiving the switching value signals collected by the switching value signal output module according to a time sequence, and arranging and combining the change positions of the switching value signals into a corresponding outlet state matrix according to the time sequence.
8. The apparatus of claim 7, wherein the processing module is further configured to compare the generated exit status matrix to a predetermined matrix criterion,
if the change positions of the switching value signals of the generated outlet state matrix at the moment in the test time all accord with a preset matrix standard, judging that the target relay protection device passes the test;
and if the change position of the switching value signal of the generated outlet state matrix at a certain moment in the test time does not accord with the preset matrix standard, judging that the target relay protection device fails to pass the test.
9. The apparatus according to claim 6, wherein the processing module is further configured to, when an error identifier is received, match a corresponding alert message according to the error identifier and output the alert message.
10. The apparatus of claim 9, further comprising:
and the display module is used for displaying the generated test result, the reminding information and the test items, wherein the test result comprises that the target relay protection device passes or fails the test.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211114472.0A CN115436733A (en) | 2022-09-14 | 2022-09-14 | Relay protection testing device for multi-path outlet signals |
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| CN202211114472.0A CN115436733A (en) | 2022-09-14 | 2022-09-14 | Relay protection testing device for multi-path outlet signals |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116540084A (en) * | 2023-05-10 | 2023-08-04 | 江苏斯菲尔电气股份有限公司 | Automatic test system and method for relay function of electric power instrument |
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- 2022-09-14 CN CN202211114472.0A patent/CN115436733A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116540084A (en) * | 2023-05-10 | 2023-08-04 | 江苏斯菲尔电气股份有限公司 | Automatic test system and method for relay function of electric power instrument |
| CN116540084B (en) * | 2023-05-10 | 2023-12-12 | 江苏斯菲尔电气股份有限公司 | Automatic test system and method for relay function of electric power instrument |
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