CN113534003A - Distributor testing method - Google Patents
Distributor testing method Download PDFInfo
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- CN113534003A CN113534003A CN202110698350.XA CN202110698350A CN113534003A CN 113534003 A CN113534003 A CN 113534003A CN 202110698350 A CN202110698350 A CN 202110698350A CN 113534003 A CN113534003 A CN 113534003A
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- relay
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- testing
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- 238000012360 testing method Methods 0.000 title claims abstract description 190
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 5
- 238000013523 data management Methods 0.000 claims description 4
- 238000011990 functional testing Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 description 6
- 238000007726 management method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Images
Classifications
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- 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
-
- 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
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a distributor testing method which comprises automatic testing and manual testing. The automatic test can automatically carry out short-circuit point test, resistance test and relay test in the power distributor function test, and the data is automatically interpreted without manual intervention in the whole process. The manual test can select one of a short-circuit point test, a resistance test and a relay test to carry out an integral or single-point test, and the manual test is favorable for fault reproduction and positioning. In the method, the relay test adopts a power-off-power-on-power-off mode to carry out three times of relay function tests, the active contact in the relay test is subjected to pulse detection, and the passive contact is subjected to resistance detection. The method also comprises vibration process monitoring, monitoring and recording whether instantaneous interruption occurs in the process of electrifying and vibrating the relay, and data query, alarm and user management can be carried out.
Description
Technical Field
The invention relates to the field of power distributors, in particular to a power distributor testing technology.
Background
Before the distributor leaves a factory, functional performance tests are required, and the method mainly comprises the steps of testing an internal relay, and mainly comprises short-circuit point tests, resistance tests and relay function tests. In the testing process, the testing data volume is large, the process is repeated, if a problem occurs, fault diagnosis and positioning are required, and after the problem is found by the traditional automatic testing method, manual fault reproduction and diagnosis and positioning are usually required, so that the labor is consumed, and the time is wasted.
Disclosure of Invention
Aiming at the problems, the fault is convenient to reproduce, the labor cost and time consumed by fault diagnosis and positioning are reduced, and meanwhile, the test before the distributor leaves the factory is integrated, so that the test time is reduced. The invention provides a testing method for dividing power distributor testing into automatic testing and manual testing, wherein the automatic testing part is used for checking a full-state system of a power distributor, and the manual testing is used for fault positioning and diagnosis. Meanwhile, the vibration overall process monitoring, data storage inquiry warning and user management functions are integrated.
The invention aims to integrate the performance test, vibration monitoring, fault diagnosis and positioning of the distributor, improve the efficiency of the distributor in the production and debugging process, reduce manual intervention and interpretation, facilitate data management and save labor and time cost.
The invention discloses a distributor testing method which comprises automatic testing and manual testing. The automatic test can automatically detect the short circuit point test, the resistance test and the relay test of the distributor function test in sequence, and the data is automatically interpreted. The manual test may select at least one of a short-circuit point test, a resistance test, and a relay test, and perform an integral (module) test on the selected test, or select a single point thereof to perform an individual test.
Furthermore, in the method, the relay test adopts a power-off-power-on-power-off mode for three times of relay function tests. The relay test comprises the detection of an active contact and a passive contact; the active contact is detected by using an optical coupling isolation pulse, and the high level-low level-high level is detected for three times, and the relay is normal; the passive contact is normally open or normally closed, and the detection of the passive contact is to electrify the passive contact, convert the passive contact into an active contact (preferably, connected with 28V input), and then detect by using an optical coupling isolation pulse; the relay is normal when the normally open contact is detected to be high level-low level-high level for three times, and the relay is normal when the normally closed contact is detected to be low level-high level-low level for three times. The detection of the passive contact can also adopt resistance test, and the principle is the same as that of four-wire resistance test.
The invention also provides a distributor testing method which comprises the automatic testing, the manual testing and the vibration process monitoring.
Further, vibration process monitoring except that distributor operating condition normally powers up, the passive contact that needs the detection also all connects the 28V input, all becomes active contact monitoring with all monitoring points, utilizes the opto-coupler to keep apart pulse detection, and vibration monitoring appears more than 10 microseconds and breaks then detects positive pulse to the transient interruption time to the relay carries out the record.
Furthermore, the monitoring of the vibration process in the method can modify the monitoring time, and the whole-process monitoring and recording are carried out on whether the instantaneous interruption problem occurs in the relay power-on vibration process with different vibration durations.
Furthermore, the method can carry out self-checking before testing, wherein the self-checking comprises self-checking of the function testing module and the power supply, and the method ensures that the equipment is complete in performance, safe and reliable.
Furthermore, the test method comprises the steps of recording and storing and inquiring test data, comparing and interpreting the test data with a threshold value, and displaying an unqualified data alarm, and simultaneously comprises a user data management part which can perform addition, deletion, modification and inquiry operations on a user.
Further, in the resistance test, the resistance below 1000 Ω is measured by adopting a four-wire system principle, and the resistance above 1000 Ω is measured by adopting a two-wire system principle. The short-circuit point test adopts two-wire system measurement, and the wire resistance during the two-wire system resistance measurement is removed through self-checking, so that the short-circuit point test error is reduced.
Advantageous effects
Compared with the prior art, the invention provides a distributor testing method, which can automatically perform distributor short-circuit point testing, resistance testing and relay function testing and monitor in real time in the whole vibration process, and can also perform fault recurrence and fault positioning through a manual testing module. In the method, a user can select automatic test and manual test, the two separate test methods are the same, but the purposes and internal logics are different, when the automatic test is selected, the three test items are automatically performed in sequence, and after the manual test is selected, the selection of a single integral test or a single point test is required according to the requirements. Meanwhile, the system integrates the functions of user management, data comparison recording and storage, integrates conventional test and fault recurrence diagnosis of the power distributor, records and stores test and fault positioning results, and is convenient to search. The manual judgment time is saved while the test integration degree is improved.
In the method, the same relay test point is used in the three test processes, the passive paths are powered up in the vibration monitoring process, and pulse signals are acquired through optical coupling isolation pulse detection, so that the test process is simplified, the time for switching the test process is reduced, and the test efficiency is improved.
Drawings
Fig. 1 is a flow chart of a distributor testing method.
Detailed Description
The power distributor testing method of the present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1, the invention discloses a distributor testing method, which comprises automatic testing, manual testing and vibration process monitoring, wherein the automatic testing can automatically detect short circuit point testing, resistance testing and relay testing of a distributor function test, and automatically interpret data. The manual test can select one part of a short-circuit point test, a resistance test and a relay test to carry out the integral test, and can also select a single point in a certain part to carry out the independent test.
According to the method, a relay test adopts a power-off-power-on-power-off mode for three times of relay function tests, the relay test comprises active contact and passive contact detection, the active contact is detected by using an optical coupling isolation pulse, the three times of detection are high level-low level-high level, the relay is normal, the passive contacts are normally open and normally closed, and a four-wire system resistance test is adopted.
Vibration process monitoring except that distributor operating condition normally powers up, the passive contact that needs to detect also all connects the 28V input, all becomes active contact monitoring with all monitoring points, utilizes the opto-coupler to keep apart the pulse and detects, vibration monitoring appears more than 10 microseconds the transient interruption then detects positive pulse to the transient interruption time to the relay carries out the record.
The method can modify monitoring time in the vibration process monitoring, and can carry out whole-process monitoring and recording on whether the instantaneous interruption problem occurs in the relay power-on vibration process with different vibration durations.
The method can carry out self-checking before testing, wherein the self-checking comprises self-checking of the function testing module and the power supply, and the method ensures that the equipment is complete in performance, safe and reliable. The method also comprises the record storage and query of the test data, the comparison and interpretation of the test data and the threshold value, the alarm display of the unqualified data and the user data management part.
In the resistance test, the resistance below 1000 omega is measured by using a four-wire system principle, and the resistance above 1000 omega is measured by using a two-wire system principle. The short-circuit point test adopts two-wire system measurement.
The specific test procedure examples are as follows:
step 1: inputting correct user name and password to log in the operation interface, selecting self-checking, detecting whether the functions of all test items are normal, displaying an alarm in the self-checking process, immediately stopping detection, and troubleshooting and retesting.
Step 2: and after the self-test is passed, selecting automatic test or manual test. After selecting automatic test or manual test, test information (test flow stage, product model, product number, test location, test temperature, test humidity, time) needs to be filled in. For example, the test flow stage: testing after aging; the product model is as follows: DSB 356; product numbering: 202103001, respectively; test site: XX factory building; and (3) testing temperature: 25 ℃; and (3) testing humidity: 42%; time: 20210520. and (5) entering a test interface if the check is correct.
And step 3: after the automatic test function enters a test interface, clicking 'start test' to automatically start testing; after the manual test function enters a test interface, a test single item (a short-circuit point, a resistor or a relay) needs to be selected, a 'start test' is clicked to start a single item overall test, if a single point in the test single item needs to be measured, the single point needs to be selected again after the single item is selected, and finally the 'start test' is clicked to perform the single point test in the single item. The short-circuit point test adopts two-wire system measurement, and the wire resistance during the two-wire system resistance measurement is removed through self-detection, so that the short-circuit point test error is reduced; in the resistance test, the resistance below 1000 omega is measured by adopting a four-wire system principle, and the resistance above 1000 omega is measured by adopting a two-wire system principle. In the relay test, after a passive contact test power-on (28V) is changed into an active contact, both the passive contact test and the active contact test utilize optical coupling isolation pulse detection (a power-off-power-on-power-off mode is used for carrying out three times of relay function tests). Vibration process monitoring is except that distributor operating condition normally powers up, and the passive contact that needs to detect also all connects the 28V input, all becomes active contact monitoring with all monitoring points, utilizes the opto-coupler to keep apart pulse detection, and vibration monitoring appears more than 10 microseconds and breaks then detects positive pulse and is unqualified to the transient interruption time of relay carries out the record. The short circuit point test data is unqualified when the voltage is more than 0.5 omega, the resistance test data is qualified when the voltage is more than 1000 omega within the range of theoretical value x (1 +/-2%), actual measurement values are recorded in the short circuit point test and the resistance test, and the relay test detects that the pulse change is unqualified.
And 4, step 4: and in the test process, data are displayed in real time and are compared automatically, and alarm display is carried out when the data exceed a threshold value. And after the test is finished, automatically storing the data. And inquiring the test record according to the conditions of the product number, the test time or the test personnel and the like, and submitting and printing the test record.
In this embodiment, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
Claims (10)
1. A test method of a distributor is characterized in that the test method comprises automatic test and manual test, wherein the automatic test is a short-circuit point test, a resistance test and a relay test which automatically detect the functions of the distributor in sequence, and data is automatically interpreted; the manual test may select at least one of a short-circuit point test, a resistance test, and a relay test, and perform a single-point test or an integral test on the selected test.
2. A distributor testing method according to claim 1, characterized in that the relay testing is performed three times in a power-off-power-on-power-off manner.
3. The distributor testing method according to claim 1 or 2, wherein the active contact detection in the relay test is detected by using an optical coupling isolation pulse, and three times of detection are high level-low level-high level, and the relay is normal.
4. The distributor testing method according to claim 1 or 2, wherein the passive contacts in the relay test are normally open and normally closed; the detection of the passive contact is to electrify the passive contact, convert the passive contact into an active contact and detect the active contact by utilizing the optical coupling isolation pulse; the relay is normal when the normally open contact is detected to be high level-low level-high level for three times, and the relay is normal when the normally closed contact is detected to be low level-high level-low level for three times; the passive contacts may also perform resistance sensing.
5. A power distributor testing method according to any of claims 1-5, characterized in that the method further comprises a vibration process monitoring, which is performed after all monitoring points have been changed to active contacts.
6. The distributor testing method according to claim 5, wherein in the vibration process monitoring, except for normal power-up of the distributor in the working state, passive contacts to be detected are connected with 28V input, all monitoring points are changed into active contact monitoring, optical coupling isolation pulse detection is utilized, positive pulse is detected when transient interruption of more than 10 microseconds occurs in vibration monitoring, and transient interruption time of a relay is recorded.
7. The power distributor testing method according to claim 5, wherein the vibration process monitoring can modify the monitoring time, and the whole course monitoring and recording is carried out on whether the instantaneous interruption problem occurs in the relay power-on vibration process with different vibration time lengths.
8. A method for testing a power distributor according to any of claims 1-7, characterized in that the method is capable of self-checking before testing, the self-checking including self-checking of the functional test module and the power supply, ensuring that the device is fully functional, safe and reliable.
9. A distributor testing method according to claim 8, characterized in that the testing method comprises record saving and query of test data, comparison and interpretation of test data with threshold values, alarm display of non-compliant data, and user data management section for adding, deleting, modifying and querying operations to users.
10. A distributor testing method according to any of claims 1-9, characterized in that in the resistance test the resistance below 1000 Ω is measured in a four-wire system and the resistance above 1000 Ω is measured in a two-wire system; the short-circuit point test adopts two-wire system measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110698350.XA CN113534003A (en) | 2021-06-23 | 2021-06-23 | Distributor testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110698350.XA CN113534003A (en) | 2021-06-23 | 2021-06-23 | Distributor testing method |
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| CN113534003A true CN113534003A (en) | 2021-10-22 |
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| CN202110698350.XA Pending CN113534003A (en) | 2021-06-23 | 2021-06-23 | Distributor testing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384895A (en) * | 2022-01-10 | 2022-04-22 | 北京航天新立科技有限公司 | Comprehensive test method of controller |
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Cited By (1)
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| CN114384895A (en) * | 2022-01-10 | 2022-04-22 | 北京航天新立科技有限公司 | Comprehensive test method of controller |
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