CN110927569A - Electromagnetic relay aging copying and performance detection test system and method - Google Patents
Electromagnetic relay aging copying and performance detection test system and method Download PDFInfo
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- 230000032683 aging Effects 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 title claims abstract description 27
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention relates to the technical field of aging detection of electromagnetic relays, and particularly discloses an aging copying and performance detection test system and method for an electromagnetic relay. The industrial control computer in the system is simultaneously communicated with a power supply, a universal meter, an oscilloscope, an electronic load and a data acquisition device through an Ethernet; the power supply, the universal meter, the oscilloscope, the electronic load and the data acquisition device are simultaneously connected with the test relay in the aging box through the auxiliary device, the industrial personal computer is connected with the auxiliary device through the Ethernet and controls the auxiliary device to switch on and off the power supply, the universal meter, the oscilloscope, the electronic load, the data acquisition device and the test relay through instructions. The system and the method can solve the problems that the performance detection means of the relay of the current nuclear power station is single, and the service life evaluation means of the relay is insufficient, can automatically and reliably complete the measurement of multiple performance indexes of the relay, and have good compatibility and maintainability.
Description
Technical Field
The invention belongs to the technical field of aging detection of electromagnetic relays, and particularly relates to an aging copying and performance detection test system and method for an electromagnetic relay.
Background
An electromagnetic relay is an electric device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. Generally consisting of a core, a coil, an armature, a contact spring, etc. Electromagnetic relays suffer from aging degradation during use, which is largely divided into aging of the contact system and aging of the coil.
Relays are widely used in various control systems and loops, and some relays are used in safety or economic important system loops, and the reliability of the relays affects the safety or economic performance of the whole system or loop. The testing and the electric life test of the relay are always important fields of the research of the electric academic world at home and abroad, the detection technology of the electromagnetic relay at present comprises the measurement of contact point contact resistance, coil resistance, attraction voltage, release voltage, action time and the like, a plurality of methods or equipment are already provided for the testing of the electromagnetic relay, but because the types of relay testing items are various, the testing process is complex, and the requirements on the precision and the stability of a testing system are high, the existing testing and measuring equipment cannot simultaneously meet the requirements on the reliability, the compatibility and the maintainability of the relay.
Disclosure of Invention
The invention aims to provide an aging burn-in and performance detection test system and method for an electromagnetic relay, and solves the problems that the current nuclear power station has a single relay performance detection means and a short relay service life evaluation means.
The technical scheme of the invention is as follows: an aging copying and performance detection test system for an electromagnetic relay comprises an industrial personal computer, a wide-range direct-current power supply, a narrow-range direct-current power supply, an alternating-current power supply, an electronic load, an auxiliary device and an aging box, wherein the industrial personal computer is simultaneously communicated with a power supply, a universal meter, an oscilloscope, the electronic load and a data acquisition device through an Ethernet; the power supply, the universal meter, the oscilloscope, the electronic load and the data acquisition device are simultaneously connected with the test relay in the aging box through the auxiliary device, the industrial personal computer is connected with the auxiliary device through the Ethernet and controls the auxiliary device to switch on and off the power supply, the universal meter, the oscilloscope, the electronic load, the data acquisition device and the test relay through instructions.
The power supply comprises a wide-range direct-current power supply, a narrow-range direct-current power supply and an alternating-current power supply, wherein the wide-range direct-current power supply, the narrow-range direct-current power supply and the alternating-current power supply are connected in parallel to an Ethernet and are simultaneously connected with the auxiliary device.
The industrial personal computer is simultaneously connected with the local control display and the remote control display, can be controlled by the local control display and the remote control display, and selects coil resistance test, contact resistance test, coil action voltage test, release voltage test, action time test, release time test, synchronous time test, bounce time test, stable time test, electric load copying and performance parameter monitoring.
The industrial personal computer can communicate the two ends of the multimeter test resistor with the two ends of the contact of the test relay through the auxiliary device to test the resistance of the relay coil.
The industrial personal computer can access the universal meter, the wide-range direct-current power supply and the alternating-current power supply circuit into the test relay through the auxiliary device, so that the contact resistance test of the relay contact is carried out, and the action voltage and the release voltage of the relay are measured.
The industrial personal computer can connect the two output ends of the narrow-range direct current power supply or the alternating current power supply to the two ends of the contact of the test relay through the auxiliary device, connect the two ends of the test point of the oscilloscope to the two ends of the contact sampling resistor of the test relay, connect the two output ends of the wide-range direct current power supply or the alternating current power supply to the two ends of the coil of the test relay, and measure the action time, the release time, the synchronization time, the bounce time and the stability time of the test relay.
The industrial personal computer can control the connection of two output ends of a wide-range direct-current power supply or an alternating-current power supply to two ends of a coil of the test relay through the auxiliary device, the connection of two ends of a test point of the oscilloscope to two ends of a contact of the test relay, the connection of two ends of a test circuit of the universal meter to two ends of a contact of the test relay, the connection of an electronic load and the narrow-range direct-current power supply or the alternating-current power supply into a contact loop, and the connection of the data acquisition device to two ends; the aging box is controlled to be in a constant temperature environment by the industrial personal computer, the wide-range direct-current power supply or alternating-current power supply is controlled to be repeatedly output and closed, the test relay is made to repeatedly act, the voltage under the open-circuit state of the contact and the resistance under the closed state in the action process of the test relay are collected by the data collection device, and the test of the electrical burn-in and the aging burn-in of the test relay is completed.
An aging copying and performance detection method for an electromagnetic relay specifically comprises the following steps:
establishing an aging copying and performance detecting system of the electromagnetic relay according to claim 1;
communicating two ends of a testing resistor of the universal meter with two ends of a contact of a testing relay by using an auxiliary device, and controlling the universal meter to test the coil resistance of the testing relay by using an industrial personal computer to obtain coil resistance data of the testing relay;
the auxiliary device is used for communicating two ends of a testing resistor of the universal meter with two ends of a contact of a testing relay, and communicating the output end of a wide-range direct-current power supply or an alternating-current power supply with two ends of a coil of the testing relay; controlling the conduction of a wide-range direct-current power supply or an alternating-current power supply through an industrial personal computer, enabling a coil of the relay to be tested to act, closing a contact, and testing the contact resistance by using a universal meter to obtain contact resistance data of the relay contact;
the auxiliary device is utilized to communicate two ends of a testing circuit of the universal meter with two ends of a contact of the testing relay, and two ends of the output of the wide-range direct current power supply or the alternating current power supply are communicated with two ends of a coil of the testing relay; the industrial personal computer controls the wide-range direct-current power supply or the alternating-current power supply to increase voltage output from 0V, the universal meter is used for testing the on-off state of the relay, and when the test relay is in the on-state, the output voltage value of the wide-range direct-current power supply or the alternating-current power supply is collected to obtain relay coil action voltage and release voltage data;
the auxiliary device is utilized to communicate the two output ends of the narrow-range direct current power supply or the alternating current power supply with the two contact ends of the test relay 13, communicate the two ends of the test point of the oscilloscope with the two ends of the contact sampling resistor of the test relay, and communicate the two output ends of the wide-range direct current power supply or the alternating current power supply with the two ends of the coil of the test relay; the industrial personal computer is used for controlling the oscilloscope to perform trigger measurement, and meanwhile, the wide-range output voltage of the direct current power supply or the alternating current power supply is controlled, so that the coil of the test relay acts, the contact is closed, the data measured by the oscilloscope are obtained, and the data of the action time, the release time, the synchronization time, the bounce time and the stabilization time of the test relay are completed;
the method comprises the following steps of utilizing an auxiliary device channel loop switch to switch, connecting two output ends of a wide-range direct-current power supply or an alternating-current power supply to two ends of a coil of a test relay, connecting two ends of a test point of an oscilloscope to two ends of a contact of the test relay, connecting two ends of a test circuit of a universal meter to two ends of the contact of the test relay, connecting an electronic load into a contact loop, and connecting a data acquisition device to two ends of the contact of the test relay; the aging box is controlled to be in a constant temperature environment by the industrial personal computer, the wide-range direct-current power supply or alternating-current power supply is controlled to be repeatedly output and closed, the test relay is made to repeatedly act, the voltage under the open-circuit state of the contact and the resistance under the closed state in the action process of the test relay are collected by the data collection device, and the test of the electrical burn-in and the aging burn-in of the test relay is completed.
The invention has the following remarkable effects: the system and the method can solve the problems that the performance detection means of the relay is single and the service life evaluation means of the relay is insufficient in the current nuclear power station, can automatically and reliably complete the measurement of multiple performance indexes of the relay, and simultaneously have good compatibility and maintainability.
Drawings
FIG. 1 is a schematic structural diagram of an aging copying and performance detection test system for an electromagnetic relay according to the present invention;
in the figure: 1. a local control display; 2. a remote control display; 3. an industrial personal computer; 4. an Ethernet; 5. a wide range direct current power supply; 6. a narrow range DC power supply; 7. an alternating current power supply; 8. a universal meter; 9. an oscilloscope; 10. an electronic load; 11. a data acquisition device; 12. an auxiliary device; 13. testing the relay; 14. and (5) an aging box.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, an aging copying and performance detection test system for an electromagnetic relay comprises an industrial personal computer 3, a wide-range direct-current power supply 5, a narrow-range direct-current power supply 6, an alternating-current power supply 7, an electronic load 10, an auxiliary device 12 and an aging box 14, wherein the industrial personal computer 3 is in communication connection with a power supply, a universal meter 8, an oscilloscope 9, the electronic load 10 and a data acquisition device 11 through an ethernet 4 at the same time, the power supply, the universal meter 8, the oscilloscope 9, the electronic load 10 and the data acquisition device 11 are also connected with a test relay 13 in the aging box 14 through the auxiliary device 12 at the same time, the industrial personal computer 3 is connected with the auxiliary device 12 through the ethernet 4, and controls the auxiliary device 12 to perform on-off on the test relay 13 through instructions; the power supply comprises a wide-range direct-current power supply 5, a narrow-range direct-current power supply 6 and an alternating-current power supply 7, wherein the wide-range direct-current power supply 5, the narrow-range direct-current power supply 6 and the alternating-current power supply 7 are connected in parallel to the Ethernet 4 and are connected with the auxiliary device 12 at the same time; the industrial personal computer 3 is simultaneously connected with the local control display 1 and the remote control display 2, the industrial personal computer 3 can be controlled by the local control display 1 and the remote control display 2, and coil resistance testing, contact resistance testing, coil action voltage testing, release voltage testing, action time testing, release time testing, synchronous time testing, bounce time testing, stable time testing, electric load copying, performance parameter monitoring and the like are selected;
when the resistance test of the relay coil is carried out, the local control display 1 or the remote control display 2 is used for controlling the industrial personal computer 3 to send a control instruction to the auxiliary device 12 by using the Ethernet 4, the auxiliary device 12 is used for communicating two ends of the test resistor of the universal meter 8 with two ends of the contact of the test relay 13, the industrial personal computer 3 is used for controlling the universal meter 8 to carry out the coil resistance test of the test relay 13, and data obtained by the test is stored in a database of the industrial personal computer 3 to finish the coil resistance test of the test relay 13;
when the contact resistance test of the relay is carried out, the local control display 1 or the remote control display 2 is used for controlling the industrial personal computer 3 to send a control instruction to the auxiliary device 12 by using the Ethernet 4, the auxiliary device 12 is used for enabling the universal meter 8 and the wide-range direct current power supply 5 or the alternating current power supply 7 to be connected into the test relay 13, the industrial personal computer 3 controls the wide-range direct current power supply 5 or the alternating current power supply 7 to be connected, the coil of the test relay 13 is enabled to act, the contact is closed, the universal meter is used for carrying out the contact resistance test, the data obtained by the test is stored in the database of the industrial personal computer 3, and the contact resistance test of the test relay 13 is;
when the relay coil action voltage and release voltage test is carried out, the local control display 1 or the remote control display 2 is used for controlling the industrial personal computer 3 to send a control instruction to the auxiliary device 12 by using the Ethernet 4, the auxiliary device 12 is used for enabling the universal meter 8 and the wide-range direct current power supply 5 or alternating current voltage 7 circuit to be connected into the test relay 13, two ends of the test circuit of the universal meter 8 are connected to two ends of a contact of the test relay 13, two output ends of the wide-range direct current power supply 5 or alternating current power supply 7 are connected to two ends of a coil of the test relay 13, and the industrial personal computer 3 sends an output voltage instruction from 0V to the wide-range direct current power supply 5 or alternating current power supply 7 to enable the coil of the test relay; measuring the on-off state of the test relay 13 by using a universal meter, controlling the wide-range direct current power supply 5 or the alternating current power supply 7 to continuously increase the output voltage by using the industrial personal computer 3 when the test state is off, circularly testing until the test state is in a conducting state, recording the output voltage value of the wide-range direct current power supply 5 or the alternating current power supply 7 at the moment, storing data in a database of the industrial personal computer 3, and completing the measurement of the action voltage and the release voltage of the test relay 13;
when the relay action time, release time, synchronous time, bounce time and stable time are tested, the local control display 1 or the remote control display 2 is used for controlling the industrial personal computer 3 to send a control instruction to the auxiliary device 12 by using the Ethernet 4, the auxiliary device 12 is used for enabling the wide-range direct current power supply 5, the narrow-range direct current power supply 6, the alternating current power supply 7 and the oscilloscope 9 to be connected into the test relay 13, two output ends of the narrow-range direct current power supply 6 or the alternating current power supply 7 are connected to two ends of a contact of the test relay 13, two test points of the oscilloscope 9 are connected to two ends of a contact sampling resistor of the test relay 13, two output ends of the wide-range direct current power supply 5 or the alternating current power supply 7 are connected to two ends of a coil of the test relay 13, the industrial personal computer 3 controls the oscilloscope 9 to carry out trigger measurement and simultaneously, the coil of the test relay 13 is actuated, the contact is closed, the data measured by the oscilloscope 9 is stored in the database of the industrial personal computer 3, and the measurement of the actuation time, the release time, the synchronization time, the bounce time and the stability time of the test relay 13 is completed;
when the relay electrical load is copied, the local control display 1 or the remote control display 2 is used for controlling the industrial personal computer 3 to send a control instruction to the auxiliary device 12 by using the Ethernet 4, the channel loop switch of the auxiliary device 12 is used for switching, the two output ends of the wide-range direct current power supply 5 or the alternating current power supply 7 are connected to the two ends of the coil of the test relay 13, the two ends of the test point of the oscilloscope 9 are connected to the two ends of the contact of the test relay 13, the two ends of the test circuit of the universal meter 8 are connected to the two ends of the contact of the test relay 13, the electronic load 10 is connected into the contact loop, and the data acquisition device 11 is connected to; the industrial personal computer 3 is used for controlling the aging box 14 to be in a constant temperature environment, controlling the wide-range direct-current power supply 5 or the alternating-current power supply 7 to output and close repeatedly, enabling the test relay 13 to act repeatedly, and acquiring the voltage of the contact in an open circuit state and the resistance of the contact in a closed state in the action process of the test relay 13 by using the data acquisition device 11 to finish the electric copying and aging copying tests of the test relay 13.
An aging copying machine and a performance detection method for an electromagnetic relay are disclosed, which comprises the following steps:
communicating two ends of a testing resistor of the universal meter with two ends of a contact of a testing relay by using an auxiliary device, and controlling the universal meter to test the coil resistance of the testing relay by using an industrial personal computer to obtain coil resistance data of the testing relay;
the auxiliary device is used for communicating two ends of a testing resistor of the universal meter with two ends of a contact of a testing relay, and communicating the output end of a wide-range direct-current power supply or an alternating-current power supply with two ends of a coil of the testing relay; controlling the conduction of a wide-range direct-current power supply or an alternating-current power supply through an industrial personal computer, enabling a coil of the relay to be tested to act, closing a contact, and testing the contact resistance by using a universal meter to obtain contact resistance data of the relay contact;
the auxiliary device is utilized to communicate two ends of a testing circuit of the universal meter with two ends of a contact of the testing relay, and two ends of the output of the wide-range direct current power supply or the alternating current power supply are communicated with two ends of a coil of the testing relay; the industrial personal computer controls the wide-range direct-current power supply or the alternating-current power supply to increase voltage output from 0V, the universal meter is used for testing the on-off state of the relay, and when the test relay is in the on-state, the output voltage value of the wide-range direct-current power supply or the alternating-current power supply is collected to obtain relay coil action voltage and release voltage data;
the auxiliary device is utilized to communicate the two output ends of the narrow-range direct current power supply or the alternating current power supply with the two contact ends of the test relay 13, communicate the two ends of the test point of the oscilloscope with the two ends of the contact sampling resistor of the test relay, and communicate the two output ends of the wide-range direct current power supply or the alternating current power supply with the two ends of the coil of the test relay; the industrial personal computer is used for controlling the oscilloscope to perform trigger measurement, and meanwhile, the wide-range output voltage of the direct current power supply or the alternating current power supply is controlled, so that the coil of the test relay acts, the contact is closed, the data measured by the oscilloscope are obtained, and the data of the action time, the release time, the synchronization time, the bounce time and the stabilization time of the test relay are completed;
the method comprises the following steps of utilizing an auxiliary device channel loop switch to switch, connecting two output ends of a wide-range direct-current power supply or an alternating-current power supply to two ends of a coil of a test relay, connecting two ends of a test point of an oscilloscope to two ends of a contact of the test relay, connecting two ends of a test circuit of a universal meter to two ends of the contact of the test relay, connecting an electronic load into a contact loop, and connecting a data acquisition device to two ends of the contact of the test relay; the aging box is controlled to be in a constant temperature environment by the industrial personal computer, the wide-range direct-current power supply or alternating-current power supply is controlled to be repeatedly output and closed, the test relay is made to repeatedly act, the voltage under the open-circuit state of the contact and the resistance under the closed state in the action process of the test relay are collected by the data collection device, and the test of the electrical burn-in and the aging burn-in of the test relay is completed.
Claims (8)
1. The utility model provides an electromagnetic relay ages and copies machine and performance detection test system which characterized in that: the system comprises an industrial personal computer (3), a wide-range direct-current power supply (5), a narrow-range direct-current power supply (6), an alternating-current power supply (7), an electronic load (10), an auxiliary device (12) and an aging box (14), wherein the industrial personal computer (3) is simultaneously communicated with the power supply, a universal meter (8), an oscilloscope (9), the electronic load (10) and a data acquisition device (11) through an Ethernet (4); the power supply, the universal meter (8), the oscilloscope (9), the electronic load (10) and the data acquisition device (11) are simultaneously connected with a test relay (13) in the aging box (14) through an auxiliary device (12), the industrial personal computer (3) is connected with the auxiliary device (12) through the Ethernet (4), and the auxiliary device (12) is controlled to switch on and off the power supply, the universal meter (8), the oscilloscope (9), the electronic load (10), the data acquisition device (11) and the test relay (13) through instructions.
2. The aging copying and performance detection test system for the electromagnetic relay according to claim 1, characterized in that: the power supply comprises a wide-range direct-current power supply (5), a narrow-range direct-current power supply (6) and an alternating-current power supply (7), wherein the wide-range direct-current power supply (5), the narrow-range direct-current power supply (6) and the alternating-current power supply (7) are connected in parallel to an Ethernet (4) and are simultaneously connected with an auxiliary device (12).
3. The aging copying and performance detection test system for the electromagnetic relay according to claim 1, characterized in that: industrial computer (3) be connected with local control display (1), remote control display (2) simultaneously, accessible local control display (1), remote control display (2) are controlled industrial computer (3), select coil resistance test, contact resistance test, coil action voltage test, release voltage test, action time test, release time test, synchronous time test, spring time test, stable time test and electric load copy and performance parameter monitoring.
4. The aging copying and performance detection test system for the electromagnetic relay according to claim 1, characterized in that: the industrial personal computer (3) can control the universal meter (8) to test the resistance of the relay coil by the auxiliary device (12) and communicating the two ends of the test resistance with the two ends of the contact of the test relay (13).
5. The aging copying and performance detection test system for the electromagnetic relay according to claim 2, characterized in that: the industrial personal computer (3) can be controlled by the auxiliary device (12) to connect the universal meter (8) and the wide-range direct-current power supply (5) into the test relay (13) to test the contact resistance of the relay and measure the action voltage and the release voltage of the relay.
6. The aging copying and performance detection test system for the electromagnetic relay according to claim 2, characterized in that: the industrial personal computer (3) can control the output two ends of the narrow-range direct current power supply (6) or the alternating current power supply (7) to be connected to the two ends of a contact of the testing relay (13) through the auxiliary device (12), the two ends of a testing point of the oscilloscope (9) are connected to the two ends of a contact sampling resistor of the testing relay (13), the output two ends of the wide-range direct current power supply (5) or the alternating current power supply (7) are connected to the two ends of a coil of the testing relay (13), and the action time, the release time, the synchronization time, the bounce time and the stability time of the testing relay are measured.
7. The aging copying and performance detection test system for the electromagnetic relay according to claim 2, characterized in that: the industrial personal computer (3) can control to connect two output ends of a wide-range direct-current power supply (5) or an alternating-current power supply (7) to two ends of a coil of the test relay (13) through the auxiliary device (12), connect two ends of a test point of the oscilloscope (9) to two ends of a contact of the test relay (13), connect two ends of a test circuit of the universal meter (8) to two ends of the contact of the test relay (13), connect the electronic load (10) into a contact loop, and connect the data acquisition device (11) to two ends of the contact of the test relay (13); an industrial personal computer (3) is used for controlling an aging box (14) to be in a constant temperature environment, a wide-range direct-current power supply (5) is controlled to be repeatedly output and closed, a test relay (13) is made to repeatedly act, and a data acquisition device (11) is used for acquiring voltage under a contact open circuit state and resistance under a contact closed state in the action process of the test relay (13) so as to finish electric copying and aging copying tests of the test relay (13).
8. An aging copying machine and a performance detection method for an electromagnetic relay are characterized in that: the method specifically comprises the following steps:
step 1, establishing an electromagnetic relay aging copying machine and a performance detection system;
establishing an aging copying and performance detecting system of the electromagnetic relay according to claim 1;
step 2, carrying out resistance test of a relay coil;
communicating two ends of a testing resistor of the universal meter (8) with two ends of a contact of the testing relay (13) by using an auxiliary device (12), and controlling the universal meter (8) to test the coil resistance of the testing relay (13) by using the industrial personal computer (3) to obtain coil resistance data of the testing relay;
step 3, testing the contact resistance of the relay contact;
the auxiliary device (12) is utilized to communicate the two ends of the testing resistor of the universal meter (8) with the two ends of the contact of the testing relay, and the output end of the wide-range direct current (5) power supply or alternating current power supply (7) is communicated with the two ends of the coil of the testing relay; controlling the conduction of a wide-range direct current power supply (5) or an alternating current power supply (7) through an industrial personal computer, enabling a coil of a test relay (13) to act, closing a contact, and testing a contact resistor by using a universal meter (8) to obtain relay contact resistor data;
step 4, testing the action voltage and the release voltage of the relay coil;
the auxiliary device is utilized to communicate two ends of a testing circuit of the universal meter with two ends of a contact of the testing relay, and two output ends of the wide-range direct current power supply (5) or the alternating current power supply (7) are communicated with two ends of a coil of the testing relay; the industrial personal computer controls the wide-range direct-current power supply (5) or the alternating-current power supply (7) to increase voltage output from 0V, the universal meter is used for testing the on-off state of the relay, and when the test relay is in the on state, the output voltage value of the wide-range direct-current power supply (5) or the alternating-current power supply (7) is collected to obtain relay coil action voltage and release voltage data;
step 5, testing the action time, the release time, the synchronization time, the bounce time and the stabilization time of the relay;
the auxiliary device is utilized to communicate the two output ends of the narrow-range direct current power supply (6) or the alternating current power supply (7) with the two ends of the contact of the test relay (13), communicate the two ends of the test point of the oscilloscope with the two ends of the contact sampling resistor of the test relay, and communicate the two output ends of the wide-range direct current power supply (5) or the alternating current power supply (7) with the two ends of the coil of the test relay; an industrial personal computer is used for controlling an oscilloscope to perform trigger measurement, and meanwhile, a wide-range direct current power supply (5) or an alternating current power supply (7) is controlled to output voltage, so that a coil of the test relay acts, a contact is closed, data measured by the oscilloscope are obtained, and the data of action time, release time, synchronous time, bounce time and stabilization time of the test relay are completed;
step 6, copying the electrical load of the relay;
the method comprises the following steps of utilizing an auxiliary device (12) to switch a channel loop switch, connecting two output ends of a wide-range direct-current power supply (5) or an alternating-current power supply (7) to two ends of a coil of a test relay (13), connecting two ends of a test point of an oscilloscope (9) to two ends of a contact of the test relay (13), connecting two ends of a test circuit of a universal meter (8) to two ends of the contact of the test relay (13), connecting an electronic load (10) into the contact loop, and connecting a data acquisition device (11) to two ends of the contact of the test relay (13); an industrial personal computer (3) is used for controlling an aging box (14) to be in a constant temperature environment, a wide-range direct-current power supply (5) or an alternating-current power supply (7) is controlled to be repeatedly output and closed, a test relay (13) is made to repeatedly act, and a data acquisition device (11) is used for acquiring the voltage of a contact in an open circuit state and the resistance of the contact in a closed state in the action process of the test relay (13) so as to finish the test of the electric copying and the aging copying of the test relay (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911408873.5A CN110927569A (en) | 2019-12-31 | 2019-12-31 | Electromagnetic relay aging copying and performance detection test system and method |
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| CN201911408873.5A CN110927569A (en) | 2019-12-31 | 2019-12-31 | Electromagnetic relay aging copying and performance detection test system and method |
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| CN110927569A true CN110927569A (en) | 2020-03-27 |
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| CN201911408873.5A Pending CN110927569A (en) | 2019-12-31 | 2019-12-31 | Electromagnetic relay aging copying and performance detection test system and method |
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| CN (1) | CN110927569A (en) |
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