System, method and equipment for testing service life of electrical equipment, medium and product

Abstract

The invention discloses a service life test system, method and equipment of electrical equipment, a medium and a product, and relates to the technical field of service life test.The system comprises an equipment state detection module used for detecting the on-off state of the tested electrical equipment; the numerical control direct current power supply is used for converting input voltage into target test voltage and outputting the target test voltage; the target test voltage comprises an operation voltage or a standby DC voltage, the operation voltage comprises an opening voltage or a closing voltage, and the operation state of the operation voltage is opposite to the on-off state of the tested electrical equipment; the first end of each group of control switch module is connected with the output end of the numerical control direct current power supply, the second ends of the first group of control switch module and the second group of control switch module are used for being connected with an opening coil and a closing coil of tested electrical equipment, and the second end of the third group of control switch module is used as a standby direct current voltage output end; according to the invention, normal operation and test safety of the mechanical life test system are ensured.

Description

Technical Field

[0001] The present application relates to the field of life testing technology, and in particular to a life testing system, method, equipment, medium and product for electrical equipment. Background Art

[0002] The core function of a circuit breaker is to control the on / off operation of an electrical circuit through the opening and closing of mechanical contacts. Frequent opening and closing operations can cause gradual wear or fatigue of the breaker's internal mechanical components (such as springs, connecting rods, and latch mechanisms). Mechanical life testing simulates the opening and closing operations of a circuit breaker to verify that its mechanical structure continues to function properly and meet performance requirements after repeated opening and closing cycles. This testing assesses the long-term reliability and durability of the breaker's internal mechanical components.

[0003] The inventors of the present application discovered that the operating voltage (opening voltage or closing voltage) and the energy storage voltage of the existing mechanical life test system of the circuit breaker share a voltage input terminal. If the operating voltage is inconsistent with the energy storage voltage, the higher voltage of the operating voltage and the energy storage voltage will reach the rated value before the lower voltage reaches the rated value. Therefore, when it is necessary to perform a corresponding operation (such as an energy storage operation) according to the higher voltage of the operating voltage and the energy storage voltage, the circuit breaker will mistakenly perform a corresponding operation (such as an opening operation or a closing operation) according to the lower voltage of the operating voltage and the energy storage voltage, thereby affecting the normal operation of the mechanical life test system and making the existing mechanical life test system unsuitable for scenarios where the operating voltage and the energy storage voltage are inconsistent. Summary of the Invention

[0004] The purpose of this application is to provide a life test system, method, equipment, medium and product for electrical equipment to solve the problem that the existing mechanical life test system of circuit breakers is not suitable for scenarios where the operating voltage and the energy storage voltage are inconsistent.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] In a first aspect, the present application provides a life test system for electrical equipment, comprising:

[0007] An equipment status detection module is used to detect the switch status of the electrical equipment under test; the switch status includes open or closed, and the electrical equipment under test includes a circuit breaker;

[0008] A digitally controlled DC power supply, configured to convert an input voltage into a target test voltage and output the target test voltage; the target test voltage includes an operating voltage or a standby DC voltage, the operating voltage includes an opening voltage or a closing voltage, the operating state of the operating voltage being opposite to the on / off state of the electrical device under test, and the standby DC voltage includes an energy storage voltage;

[0009] Three groups of control switch modules, wherein the first end of each group of control switch modules is connected to the output end of the digital control DC power supply, the second ends of the control switch modules in the first and second groups are used to connect to the opening coil and closing coil of the electrical equipment under test, and the second end of the control switch modules in the third group is used as a backup DC voltage output end.

[0010] Optionally, the device status detection module includes a differential voltage detection feedback module, wherein:

[0011] The differential voltage detection feedback module is used to apply a state test voltage to both ends of the electrical device under test and detect the voltage difference between the two ends of the electrical device under test, so as to feedback the switch state of the electrical device under test through the voltage difference.

[0012] Optionally, the life test system for electrical equipment further includes:

[0013] A control module, configured to control the device status detection module to detect the switch status of the electrical device under test;

[0014] Controlling the digital controlled DC power supply to convert the input voltage into a target test voltage and output the target test voltage;

[0015] According to the target test voltage, by controlling the connection and disconnection of each group of control switch modules, the electrical equipment under test is controlled to perform opening or closing operations according to a preset test process, or the electrical equipment that needs to use a backup DC voltage is controlled to use the backup DC voltage.

[0016] Optionally, the life test system for electrical equipment further includes:

[0017] The discharge module is used to discharge the electrical equipment under test according to instructions.

[0018] Optionally, the discharge module includes a discharge resistor network and a discharge switch, wherein:

[0019] The first end of the discharge resistor network is connected to the second end of the discharge switch, the second end of the discharge resistor network is grounded, and the second end of the discharge switch is connected to the first ends of the three groups of control switch modules; or the second end of the discharge resistor network is connected to the first ends of the three groups of control switch modules, and the second end of the discharge switch is grounded.

[0020] Optionally, the life test system for electrical equipment further includes:

[0021] A first interface, used to connect the device status detection module and the electrical device under test;

[0022] The second interface is used for detachably connecting each group of the control switch modules to the electrical device under test.

[0023] In a second aspect, the present application provides a life test method for electrical equipment, which is applied to the life test system for electrical equipment as described in any one of the above items. The life test method for electrical equipment includes:

[0024] Controlling the device status detection module to detect the switch status of the electrical device under test;

[0025] The test control operation is cyclically performed at a set frequency until the number of opening or closing operations performed by the electrical equipment under test reaches a set number or the switch state of the electrical equipment under test no longer changes with the change of the operating voltage; the test control operation includes:

[0026] Controlling the digital controlled DC power supply to convert the input voltage into the target test voltage and output it;

[0027] According to the target test voltage, each group of the control switch modules is controlled to be turned on and off to control the electrical equipment under test to perform an opening operation or a closing operation according to a preset test process, or to control the electrical equipment that needs to use a backup DC voltage to use the backup DC voltage.

[0028] In a third aspect, the present application provides a computer device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the life test method for electrical equipment described in any one of the above.

[0029] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any one of the above-mentioned methods for life testing of electrical equipment.

[0030] In a fifth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of any one of the above-mentioned methods for life testing of electrical equipment.

[0031] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0032] The present application provides a life test system, method, equipment, medium and product for electrical equipment, which detects the switch state (including opening or closing) of the electrical equipment under test (including circuit breaker) through an equipment state detection module, converts the input voltage into a target test voltage (including operating voltage or standby DC voltage) according to instructions through a digitally controlled DC power supply (including operating voltage or closing voltage, the operating voltage includes opening voltage or closing voltage, the operating state of the operating voltage is opposite to the switch state of the electrical equipment under test, and the standby DC voltage includes energy storage voltage) and outputs it, ensuring that when the switch state of the electrical equipment under test is opening, the digitally controlled DC power supply outputs closing voltage to perform closing operation, and when the switch state of the electrical equipment under test is closing, the digitally controlled DC power supply outputs opening voltage to perform opening operation, thereby realizing mechanical life test of the electrical equipment under test; since the first end of each control switch module in the three groups of control switch modules is connected to the output end of the digitally controlled DC power supply, the second end of the first group of control switch modules is used to connect to the opening coil of the electrical equipment under test, and the second end of the second group of control switch modules is used to connect to the opening coil of the electrical equipment under test, The end is used to connect to the closing coil of the electrical equipment under test, and the second end of the third group of control switch modules is used as a backup DC voltage output end. Therefore, by controlling the target test voltage output by the digital control DC power supply and the connection and disconnection of each group of control switch modules, the electrical equipment under test can be provided with a trip voltage, a closing voltage, or a backup DC voltage (including an energy storage voltage) for electrical equipment (including the electrical equipment under test) that needs to use a backup DC voltage, so that the electrical equipment under test performs a trip operation or a closing operation, or enables the electrical equipment that needs a backup DC voltage to use the backup DC voltage. While controlling the electrical equipment under test to perform closing and trip operations, electrical isolation of the trip voltage, closing voltage, and backup DC voltage of the electrical equipment under test is achieved through the digital control DC power supply and the three groups of control switch modules, ensuring the normal operation of the mechanical life test system in the scenario where the operating voltage is inconsistent with the energy storage voltage, and can solve the problem that the existing mechanical life test system of the circuit breaker is not suitable for the scenario where the operating voltage is inconsistent with the energy storage voltage. In addition, the digital control DC power supply improves the versatility of the life test system of the electrical equipment of the present application. The integrated digital controlled DC power supply and backup DC voltage output terminal can not only complete the life test, but also serve as an independent power supply for other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 This is a structural block diagram of a life test system for electrical equipment in one embodiment of the present application;

[0035] Figure 2 A flow chart of a life testing method for electrical equipment provided in one embodiment of the present application;

[0036] Figure 3 A functional module diagram of a life test device for electrical equipment provided in one embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a computer device provided in one embodiment of the present application.

[0038] In the figure, 1. Equipment status detection module, 1-1. Differential voltage detection feedback module, 1-2. Switching power supply, 2. CNC DC power supply, 3. Control switch module, 4. Control module, 5. Discharge module, 5-1. Discharge resistor network, 5-2. Discharge switch, 6. First interface, 7. Second interface, 8. Communication module. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0041] In an exemplary embodiment, Figure 1 As shown, a life test system for electrical equipment is provided, comprising an equipment status detection module 1, a digitally controlled DC power supply 2, and three groups of control switch modules 3.

[0042] The device status detection module 1 is used to detect the switch status of the electrical device under test, where the switch status includes open or closed.

[0043] In the embodiment of the present application, the electrical equipment under test is an electrical equipment that needs to be tested for mechanical life. The embodiment of the present application does not specifically limit the electrical equipment under test, and can be set according to actual needs, including but not limited to various circuit breakers and various control switches (such as contactors, relays, grounding switches, etc.). The switch state of the electrical equipment under test can be fed back in time through the device status detection module 1 to perform an opening operation or a closing operation according to the switch state, thereby ensuring the stability and accuracy of the opening operation and the closing operation during the test. If the switch state (opening or closing) of the electrical equipment under test detected by the device status detection module 1 is inconsistent with the switch state after the electrical equipment under test performs the opening operation or the closing operation during the test, that is, the switch state detected by the device status detection module 1 conflicts with the actual operating state, the test is stopped and recorded.

[0044] The digital controlled DC power supply 2 is used to convert the input voltage into a target test voltage and output it; the target test voltage includes an operating voltage or a standby DC voltage, the operating voltage includes an opening voltage or a closing voltage, and the switching state of the operating voltage is opposite to the switching state of the electrical equipment under test.

[0045] Traditional mechanical life test systems for electrical equipment only support a fixed voltage range (such as a fixed DC24V) and lack multi-voltage compatibility (such as using a switching power supply with a fixed output voltage range for power supply). This makes it impossible to adapt to tested electrical equipment with other voltage specifications, resulting in insufficient versatility in the mechanical life test system. The embodiment of the present application uses a digitally controlled DC power supply as the digitally controlled DC power supply 2, which can convert the input voltage into voltages of different levels, thereby being able to adapt to electrical equipment with other voltage specifications, thereby improving the versatility of the life test system.

[0046] In the embodiment of the present application, there is no specific limitation on the standby DC voltage, which can be set according to actual needs. If the electrical device under test is a circuit breaker, the standby DC voltage is the energy storage voltage of the circuit breaker. The opening voltage refers to the voltage required for the electrical device under test to perform the opening operation, the closing voltage refers to the voltage required for the electrical device under test to perform the opening operation, and the energy storage voltage refers to the voltage required to charge the energy storage motor of the circuit breaker. There is no specific limitation on the input voltage of the CNC DC power supply 2, which can be set according to actual needs. For example, the input voltage of the CNC DC power supply 2 is set to 380V AC. The operating state of the operating voltage is opposite to the switching state of the electrical device under test, that is, if the switching state of the electrical device under test is opening, the operating voltage is closing voltage, and if the switching state of the electrical device under test is closing, the operating voltage is opening voltage. Specifically, if the switch state of the electrical equipment under test is open, the CNC DC power supply 2 converts the input voltage into a closing voltage and outputs it; if the switch state of the electrical equipment under test is closed, the CNC DC power supply 2 converts the input voltage into an opening voltage and outputs it; after the electrical equipment under test performs an opening operation or a closing operation, if a backup DC voltage is required, the CNC DC power supply 2 converts the input voltage into a backup DC voltage and outputs it; if the electrical equipment under test is a circuit breaker, after the electrical equipment under test performs a closing operation, the CNC DC power supply 2 converts the input voltage into a storage voltage.

[0047] Three groups of control switch modules 3, wherein the first end of each group of control switch modules 3 is connected to the output end of the digital control DC power supply 2, the second end of the first group of control switch modules 3 is used to connect to the opening coil of the electrical equipment under test, the second end of the second group of control switch modules 3 is used to connect to the closing coil of the electrical equipment under test, and the second end of the third group of control switch modules 3 is used as a backup DC voltage output end.

[0048] In this embodiment of the present application, the aforementioned backup DC voltage refers to the DC voltage required by the electrical equipment (including the electrical equipment under test) that requires the backup DC voltage and is connected to the second end of the third group of control switch modules 3. Each group of control switch modules 3 is used to connect or disconnect the circuit connecting the output end of the CNC DC power supply 2 to the electrical equipment under test or the electrical equipment requiring the backup DC voltage. By connecting or disconnecting the three groups of control switch modules 3, electrical isolation of different target test voltages can be achieved.

[0049] If the electrical device under test is a circuit breaker, the backup DC voltage includes the circuit breaker's energy storage voltage. The second end of the third group of control switch modules 3 is connected to the energy storage terminal of the electrical device under test, namely, the energy storage motor. During the mechanical life test, after the electrical device under test is closed, the energy storage voltage can be output by the digitally controlled DC power supply 2. This controls the third group of control switch modules 3 to turn on, while the first and second groups of control switch modules 3 are turned off, thereby charging the circuit breaker's energy storage motor.

[0050] In an embodiment of the present application, the digitally controlled DC power supply 2 can be controlled to output an opening voltage and the first group of control switch modules 3 can be controlled to be turned on, while the second group of control switch modules 3 and the third group of control switch modules 3 are turned off, so that the electrical device under test performs an opening operation. The digitally controlled DC power supply 2 can be controlled to output a closing voltage and the second group of control switch modules 3 can be controlled to be turned on, while the first group of control switch modules 3 and the third group of control switch modules 3 are turned off, so that the electrical device under test performs a closing operation. The digitally controlled DC power supply 2 can be controlled to output a backup DC voltage and the third group of control switch modules 3 can be controlled to be turned on, while the first group of control switch modules 3 and the second group of control switch modules 3 are turned off, so that electrical equipment that requires a backup DC voltage uses the backup DC voltage.

[0051] The switching state (including opening or closing) of the electrical equipment under test (including circuit breaker) is detected by the equipment state detection module 1, and the input voltage is converted into the target test voltage (including operating voltage or standby DC voltage) by the digital control DC power supply 2, the operating voltage includes opening voltage or closing voltage, the operating state of the operating voltage is opposite to the switching state of the electrical equipment under test, and the standby DC voltage includes energy storage voltage) and output, so as to ensure that when the switching state of the electrical equipment under test is opening, the digital control DC power supply 2 outputs closing voltage to perform closing operation, and when the switching state of the electrical equipment under test is closing, the digital control DC power supply 2 outputs opening voltage to perform opening operation, so as to realize the mechanical life test of the electrical equipment under test; since the first end of each control switch module 3 in the three groups of control switch modules 3 is connected to the output end of the digital control DC power supply 2, the second end of the first group of control switch modules 3 is used to be connected to the opening coil of the electrical equipment under test, and the second end of the second group of control switch modules 3 is used to be connected to the closing coil of the electrical equipment under test, The second end of the three groups of control switch modules 3 is used as a backup DC output end. Therefore, by controlling the target test voltage output by the digital control DC power supply 2 and the connection and disconnection of each group of control switch modules 3, the electrical equipment under test can be provided with a trip voltage, a closing voltage, or a backup DC voltage (including an energy storage voltage) for the electrical equipment (including the electrical equipment under test) that needs to use a backup DC voltage, so that the electrical equipment under test performs a trip operation or a closing operation, or enables the electrical equipment that needs a backup DC voltage to use the backup DC voltage. While controlling the electrical equipment under test to perform closing and trip operations, the digital control DC power supply 2 and the three groups of control switch modules 3 achieve electrical isolation of the trip voltage, closing voltage, and backup DC voltage (including an energy storage voltage) of the electrical equipment under test, ensuring the normal operation of the mechanical life test system in a scenario where the operating voltage is inconsistent with the energy storage voltage, and can solve the problem that the existing mechanical life test system of the circuit breaker is not suitable for a scenario where the operating voltage is inconsistent with the energy storage voltage. In addition, the digital control DC power supply 2 improves the versatility of the life test system of the electrical equipment of the present application. The integrated digital controlled DC power supply 2 and the backup DC voltage output terminal can not only complete the life test, but also serve as an independent power supply for other equipment.

[0052] In another exemplary embodiment of the present application, the above-mentioned device status detection module 1 includes a differential voltage detection feedback module 1-1.

[0053] The differential voltage detection feedback module 1 - 1 is used to apply a state test voltage to both ends of the electrical device under test and detect the voltage difference between the two ends of the electrical device under test, so as to feedback the switching state of the electrical device under test through the voltage difference.

[0054] In the embodiment of the present application, there is no specific limitation on the test voltage applied by the differential voltage detection feedback module 1-1 at both ends of the electrical device under test, and it can be set according to actual needs. If the voltage difference between the two ends of the electrical device under test fed back by the differential voltage detection feedback module 1-1 is zero or close to zero, then the switch state of the electrical device under test is considered to be closed. If the voltage difference between the two ends of the electrical device under test fed back by the differential voltage detection feedback module 1-1 is the test voltage or close to the test voltage, then the switch state of the electrical device under test is considered to be open. There is no specific limitation on the structure of the differential voltage detection feedback module 1-1, as long as its function can be achieved. Using the differential voltage detection feedback module 1-1 to detect the switch state of the electrical device under test takes up little space and is economical and reliable.

[0055] In another exemplary embodiment of the present application, the above-mentioned device status detection module 1 further includes a switching power supply 1-2, and the switching power supply 1-2 is used to supply power to the differential voltage detection feedback module 1-1.

[0056] In another exemplary embodiment of the present application, the above-mentioned life test system for electrical equipment further includes:

[0057] The control module 4 is used to control the device status detection module 1 to detect the switch status of the electrical device under test;

[0058] Controlling the digital controlled DC power supply 2 to convert the input voltage into the target test voltage and output it;

[0059] According to the target test voltage, by controlling the connection and disconnection of each group of control switch modules 3, the electrical equipment under test is controlled to perform opening or closing operations according to the preset test process, or the electrical equipment that needs to use the backup DC voltage is controlled to use the backup DC voltage.

[0060] In another exemplary embodiment of the present application, the control module 4 is further configured to control the digital controlled DC power supply 2 to convert the input voltage into a target test voltage and output the target test voltage according to the following steps:

[0061] If the switch state of the electrical equipment under test is open and a closing operation is required according to the test process, the digital control DC power supply 2 is controlled to convert the input voltage into a closing voltage and output it;

[0062] If the switch state of the electrical equipment under test is closed and an opening operation is required according to the test process, the digital control DC power supply 2 is controlled to convert the input voltage into an opening voltage and output it;

[0063] If a backup DC voltage is required, the digital controlled DC power supply 2 is controlled to convert the input voltage into the backup DC voltage and output it.

[0064] In another exemplary embodiment of the present application, the control module 4 controls the electrical equipment under test to perform an opening or closing operation according to a preset test process by controlling the on and off of each group of control switch modules 3 according to the target test voltage in accordance with the following process, or controls the electrical equipment that requires the use of the backup DC voltage to use the backup DC voltage:

[0065] If the digital controlled DC power supply 2 outputs a tripping voltage, the first group of control switch modules 3 is controlled to be turned on, and the second and third groups of control switch modules 3 are controlled to be turned off, so that the electrical equipment under test performs a tripping operation according to the test process;

[0066] If the digital controlled DC power supply 2 outputs the closing voltage, the second group of control switch modules 3 is controlled to be turned on, and the first and third groups of control switch modules 3 are controlled to be turned off, so that the electrical equipment under test performs the closing operation according to the test process;

[0067] If the digital controlled DC power supply 2 outputs a backup DC voltage, the third group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the second group of control switch modules 3 are controlled to be turned off, so that the electrical equipment that needs to use the backup DC voltage can use the backup DC voltage.

[0068] In another exemplary embodiment of the present application, the three groups of control switch modules 3 include four control switches. The first end of the first control switch is connected to the negative output terminal of the digital control DC power supply 2, and the first ends of the remaining control switches are connected to the positive output terminals of the digital control DC power supply 2. The second end of the first control switch is used to connect the first ends of the opening coil and the closing coil of the electrical device under test. The second end of the second control switch is used to connect the second end of the opening coil of the electrical device under test. The second end of the third control switch is used to connect the second end of the closing coil of the electrical device under test. The second end of the first control switch is also used as the negative output terminal of the backup DC voltage, and the second end of the fourth control switch is used as the positive output terminal of the backup DC voltage.

[0069] If the electrical equipment under test is a circuit breaker, the second end of the first control switch of the three groups of control switch modules 3 is used to connect the common terminal of the circuit breaker, the second end of the second control switch is used to connect the opening terminal of the circuit breaker, the second end of the third control switch is used to connect the closing terminal of the circuit breaker, and the second end of the fourth control switch is used to connect the energy storage motor terminal of the circuit breaker. The common terminal is the ground terminal of the opening coil, closing coil and energy storage motor.

[0070] In the embodiment of the present application, there is no specific limitation on the types of the four control switches of the control switch module, including but not limited to DC relays, DC contactors or other control switches. There is no specific limitation here and they can be set according to needs.

[0071] In another exemplary embodiment of the present application, the above-mentioned life test system for electrical equipment further includes:

[0072] The discharge module 5 is used to discharge the electrical equipment under test according to the instruction.

[0073] In another exemplary embodiment of the present application, the control module 4 is further configured to control the discharge module 5 to discharge the electrical device under test.

[0074] In another exemplary embodiment of the present application, Figure 1 As shown, the above-mentioned discharge module 5 includes a discharge resistor network 5-1 and a discharge switch 5-2.

[0075] The first end of the discharge resistor network 5-1 is connected to the second end of the discharge switch 5-2. The second end of the discharge resistor network 5-1 is grounded, and the second end of the discharge switch 5-2 is connected to the first end of the three groups of control switch modules 3. Alternatively, the second end of the discharge resistor network 5-1 is connected to the first end of the three groups of control switch modules 3, and the second end of the discharge switch 5-2 is grounded.

[0076] In an embodiment of the present application, when performing a closing operation, an opening operation or using a backup DC voltage, the discharge switch 5-2 is turned off. When discharging the closing coil, the digital control DC power supply 2 stops outputting, the discharge switch 5-2 and the third control switch are closed, and the remaining control switches are turned off. When discharging the opening coil, the digital control DC power supply 2 stops outputting, the discharge switch 5-2 and the second control switch are closed, and the remaining control switches are turned off. When discharging electrical equipment that requires the use of a backup DC voltage, the digital control DC power supply 2 stops outputting, the discharge switch 5-2 and the fourth control switch are closed, and the remaining control switches are turned off. There is no specific limitation on the resistance value of the discharge resistor network 5-1 and the type of the discharge switch 5-2, and they can be set according to actual needs. For example, the type of the discharge switch 5-2 is a DC relay. The safety and stability of the test process are ensured by the combined design of the discharge resistor network 5-1 and the discharge switch 5-2.

[0077] In another exemplary embodiment of the present application, the electrical device under test is a circuit breaker, and the second end of the third group of control switch modules 3 is used to connect to the energy storage motor of the electrical device under test.

[0078] In another exemplary embodiment of the present application, the second end of the fourth control switch is used to connect to the energy storage motor terminal of the circuit breaker.

[0079] In another exemplary embodiment of the present application, the above-mentioned life test system for electrical equipment further includes a fourth group of control switch modules 3, the first end of the fourth group of control switch modules 3 is connected to the output end of the digital control DC power supply 2, and the second end of the fourth group of control switch modules 3 is used as a backup DC voltage output end.

[0080] In another exemplary embodiment of the present application, the fourth group of control switch modules 3 includes a fifth control switch, the first end of the fifth control switch is connected to the negative output end of the digital control DC power supply 2, and the second end of the fifth control switch is used as the positive output end of the backup DC voltage.

[0081] In another exemplary embodiment of the present application, the life test system of the electrical equipment is as follows: Figure 1 As shown, it also includes:

[0082] The first interface 6 is used to connect the device status detection module 1 with the electrical device under test.

[0083] In another exemplary embodiment of the present application, the first interface 6 includes three interfaces, wherein the first interface (such as a wiring terminal) is used to connect the first end of the device status detection module 1 with the first end of the electrical device under test, the second interface is used to connect the second end of the device status detection module 1 with the second end of the electrical device under test, and the third interface is used to connect the third end of the device status detection module 1 with the first end of the electrical device under test.

[0084] In an embodiment of the present application, the first end of the device status detection module 1 is the positive terminal for the status test voltage, the second end of the device status detection module 1 is the negative terminal for the status test voltage, and the third end of the device status detection module 1 is the output port for the electrical signal representing the switching state of the electrical device under test.

[0085] In another exemplary embodiment of the present application, the life test system of the electrical equipment is as follows: Figure 1 As shown, it also includes:

[0086] The second interface 7 is used to connect each group of the control switch modules 3 with the electrical equipment under test.

[0087] In another exemplary embodiment of the present application, the second interface 7 includes 6 interfaces, wherein the first interface and the second interface are used to connect the first group of control switch modules 3 and the opening coil of the electrical equipment under test, the third interface and the fourth interface are used to connect the second group of control switch modules 3 and the closing coil of the electrical equipment under test, and the fifth interface and the sixth interface are used to connect the third group of control switch modules 3 and the electrical equipment using the backup DC voltage.

[0088] In the embodiment of the present application, if the electrical device under test is a circuit breaker, the fifth interface and the sixth interface are used to connect the energy storage motor of the circuit breaker.

[0089] In another exemplary embodiment of the present application, the life test system of the electrical equipment is as follows: Figure 1 As shown, it also includes a communication module 8;

[0090] The control module 4 sends instructions to the device status detection module 1 and each group of control switch modules 3 through the communication module 8, and receives the electrical signal representing the switch status of the electrical device under test fed back by the device status detection module 1 through the communication module 8.

[0091] In the embodiment of the present application, the type of communication module 8 is not specifically limited and can be set according to actual needs. For example, a Modbus communication module and an RS485 communication module are used. In this case, the control module 4 controls the operation timing of the three control switch modules 3 and the parameters of the target test voltage output by the digital control DC power supply 2 through the Modbus protocol, and controls the device status detection module 1 through the RS485 protocol to detect the switch status of the electrical device under test to prevent interference.

[0092] In another exemplary embodiment of the present application, the control module 4 is a touch-screen industrial control all-in-one computer.

[0093] In another exemplary embodiment of the present application, the control module 4 uses open source testing software (supports Python / Java secondary development and customizable test logic).

[0094] Modular open source code allows users to dynamically adjust test logic based on standards such as IEC 60947-2 or customer requirements.

[0095] Existing systems use PLC control, with fixed test logic, and are unable to respond to standard updates or customer customization requirements. The embodiments of this application use open source test software (modular open source code) that allows users to dynamically adjust test logic based on standards such as IEC 60947-2 or customer requirements. This is achieved directly through software programming without hardware modification, allowing customized testing to be performed based on different customer or standard requirements. This provides good openness and further improves the versatility of the system.

[0096] In another exemplary embodiment of the present application, the input voltage parameters of the digital controlled DC power supply 2 are AC380V±10%, 47Hz-63Hz, and support DC 6V-600V / 1A-12A output.

[0097] Based on the same inventive concept, the present application also provides a method for testing the life of an electrical device, which is applied to the aforementioned system for testing the life of an electrical device. The solution provided by this method is similar to the solution described in the aforementioned system. Therefore, the specific limitations of one or more embodiments of the method for testing the life of an electrical device provided below can be found in the above-mentioned limitations on the system for testing the life of an electrical device, and will not be further elaborated here.

[0098] In an exemplary embodiment, a life test method for electrical equipment is provided, which is applied to the above-mentioned life test system for electrical equipment, and includes the following steps 101 to 102. In which:

[0099] Step 101: Control the device status detection module 1 to detect the switch status of the electrical device under test, where the switch status includes open and closed. The electrical device under test includes a circuit breaker.

[0100] Step 102, cyclically executing a test control operation at a set frequency until the number of opening or closing operations performed by the electrical device under test reaches a set number or the switch state of the electrical device under test no longer changes with changes in the operating voltage; the test control operation includes:

[0101] Controlling the digital controlled DC power supply 2 to convert the input voltage into a target test voltage and output the target test voltage; the target test voltage includes an operating voltage or a standby DC voltage, the operating voltage includes an opening voltage or a closing voltage, and the operating state of the operating voltage is opposite to the on / off state of the electrical equipment under test;

[0102] According to the target test voltage, by controlling the connection and disconnection of each group of control switch modules 3, the electrical equipment under test is controlled to perform opening or closing operations according to the preset test process, or the electrical equipment that needs to use the backup DC voltage is controlled to use the backup DC voltage.

[0103] In the embodiments of the present application, if the electrical device under test is a control switch such as a contactor or relay, the test process can be set according to the needs and is not specifically limited here. If the electrical device under test is a circuit breaker, the test process is set in accordance with the provisions of GB / T 1984-2024 (pages 49 and 50).

[0104] The switch state of the electrical equipment under test no longer changes with the change of the operating voltage, that is: after the electrical equipment under test is controlled to perform the opening operation, the device state detection module 1 detects that the switch state of the electrical equipment under test is still closed, or after the electrical equipment under test is controlled to perform the closing operation, the device state detection module 1 detects that the switch state of the electrical equipment under test is still open.

[0105] If the life test method for electrical equipment of an embodiment of the present application is used to test the mechanical life of the electrical equipment under test, then when no opening or closing operation is performed, the electrical equipment that needs to use the backup DC voltage is controlled to use the backup DC voltage.

[0106] Implement the above steps 101 to 102, detect the switching state (including opening or closing) of the electrical equipment under test (including circuit breaker) through the equipment state detection module 1, and convert the input voltage into the target test voltage (including operating voltage or standby DC voltage) through the digital control DC power supply 2, the operating voltage includes opening voltage or closing voltage, the operating state of the operating voltage is opposite to the switching state of the electrical equipment under test, and the standby DC voltage includes energy storage voltage) and output it, to ensure that when the switching state of the electrical equipment under test is opening, the digital control DC power supply 2 outputs closing voltage to perform closing operation, and when the switching state of the electrical equipment under test is closed, the digital control DC power supply 2 outputs opening voltage to perform opening operation, so as to realize the mechanical life test of the electrical equipment under test according to the preset test process; since the first end of each control switch module 3 in the three groups of control switch modules 3 is connected to the output end of the digital control DC power supply 2, the second end of the first group of control switch modules 3 is used to be connected to the opening coil of the electrical equipment under test, the second end of the second group of control switch modules 3 is used to be connected to the closing coil of the electrical equipment under test, and the third group of control switch modules The second end of the switch module 3 is used as a standby DC output terminal. Therefore, the target test voltage output by the digital control DC power supply 2 can be controlled, and according to the target test voltage output by the digital control DC power supply 2, each group of control switch modules 3 can be controlled to be turned on and off to provide a trip voltage or a closing voltage for the electrical equipment under test, or a standby DC voltage (including a storage voltage) can be provided for electrical equipment (including the electrical equipment under test) that needs to use a standby DC voltage to control the electrical equipment under test to perform a trip operation or a closing operation according to a preset test process, or to control the electrical equipment that needs a standby DC voltage to use a standby DC voltage. While controlling the electrical equipment under test to perform closing and tripping operations, the digital control DC power supply 2 and the three groups of control switch modules 3 realize electrical isolation of the trip voltage, closing voltage and standby DC voltage (including the storage voltage) of the electrical equipment under test, thereby ensuring the normal operation of the mechanical life test system in the scenario where the operating voltage is inconsistent with the storage voltage, and can solve the problem that the mechanical life test system of the existing circuit breaker is not suitable for the scenario where the operating voltage is inconsistent with the storage voltage. In addition, the digital control DC power supply 2 improves the versatility of the life test system of the electrical equipment of the present application. The integrated digital controlled DC power supply 2 and the backup DC voltage output terminal can not only complete the life test, but also serve as an independent power supply for other equipment.

[0107] In another exemplary embodiment of the present application, the above-mentioned control digital controlled DC power supply 2 converts the input voltage into a target test voltage and outputs the target test voltage, including:

[0108] If the switch state of the electrical equipment under test is open and a closing operation is required according to the test process, the digital control DC power supply 2 is controlled to convert the input voltage into a closing voltage and output it;

[0109] If the switch state of the electrical equipment under test is closed and an opening operation is required according to the test process, the digital control DC power supply 2 is controlled to convert the input voltage into an opening voltage and output it;

[0110] If a backup DC voltage is required, the digital controlled DC power supply 2 is controlled to convert the input voltage into the backup DC voltage and output it.

[0111] In another exemplary embodiment of the present application, the above-mentioned method of controlling the on and off of each group of control switch modules 3 according to the target test voltage to control the electrical equipment under test to perform an opening operation or a closing operation according to a preset operation, or controlling the electrical equipment that needs to use a backup DC voltage to use the backup DC voltage, includes the following steps 201 to 203. Among them:

[0112] Step 201: If the digital control DC power supply 2 outputs a tripping voltage, the first group of control switch modules 3 is controlled to be turned on, and the second group of control switch modules 3 and the third group of control switch modules 3 are controlled to be turned off, so that the electrical equipment under test performs a tripping operation according to the test process. After the switch state of the electrical equipment under test is converted from the closed state to the open state, the digital control DC power supply 2 is controlled to stop outputting the tripping voltage and the first group of control switch modules 3 is controlled to be turned off.

[0113] In step 202, if the digital control DC power supply 2 outputs the closing voltage, the second group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the third group of control switch modules 3 are controlled to be turned off, so that the electrical equipment under test performs the closing operation according to the test process. After the switch state of the electrical equipment under test is converted from the open state to the closed state, the digital control DC power supply 2 is controlled to stop outputting the closing voltage and the second group of control switch modules 3 is controlled to be turned off.

[0114] In step 203, if the digital controlled DC power supply 2 outputs a backup DC voltage, the third group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the second group of control switch modules 3 are controlled to be turned off, so that the electrical equipment that needs to use the backup DC voltage uses the backup DC voltage.

[0115] In another exemplary embodiment of the present application, the above-mentioned device status detection module 1 includes a differential voltage detection feedback module 1-1. The connection relationship of the differential voltage detection feedback module 1-1 is described in the above-mentioned system embodiment and will not be repeated here.

[0116] Accordingly, the above step 101 includes:

[0117] The differential voltage detection feedback module 1 - 1 is controlled to apply a state test voltage to both ends of the electrical device under test and detect the voltage difference between the two ends of the electrical device under test, so as to feed back the switch state of the electrical device under test through the voltage difference.

[0118] In another exemplary embodiment of the present application, the above-mentioned life test system for electrical equipment further includes a control module 4 .

[0119] Accordingly, the above-mentioned life test method for electrical equipment executes steps 101 to 103 through the control module 4 .

[0120] In another exemplary embodiment of the present application, the above-mentioned control of the digital controlled DC power supply 2 to convert the input voltage into the target test voltage and output the target test voltage includes the following steps 301 to 303. In which:

[0121] Step 301: If the switch state of the electrical equipment under test is open and a closing operation needs to be performed according to the test process, the digital controlled DC power supply 2 is controlled to convert the input voltage into a closing voltage and output it.

[0122] Step 302: If the switch state of the electrical equipment under test is closed and an opening operation needs to be performed according to the test process, the digital controlled DC power supply 2 is controlled to convert the input voltage into an opening voltage and output it.

[0123] Step 303: If a backup DC voltage is needed, control the digital controlled DC power supply 2 to convert the input voltage into a backup DC voltage and output it.

[0124] In another exemplary embodiment of the present application, the electrical device under test is a circuit breaker, and the second end of the third group of control switch modules 3 is used to connect to the energy storage motor of the circuit breaker.

[0125] Accordingly, if a backup DC voltage is required, the digital controlled DC power supply 2 is controlled to convert the input voltage into the backup DC voltage and output it, including:

[0126] After completing the closing operation, the digital control DC power supply 2 is controlled to output a backup DC voltage and the third group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the second group of control switch modules 3 are controlled to be turned off to charge the energy storage motor.

[0127] In another exemplary embodiment of the present application, the three groups of control switch modules 3 include four control switches. The connection relationship of the four control switches is described in the above system embodiment and will not be repeated here.

[0128] Correspondingly, the above-mentioned control of the first group of control switch modules 3 to turn on, and the control of the second group of control switch modules 3 and the third group of control switch modules 3 to turn off includes:

[0129] The first control switch and the second control switch are controlled to be turned on, and the third control switch and the fourth control switch are controlled to be turned off.

[0130] The above-mentioned control of the second group of control switch modules 3 to turn on, and the control of the first group of control switch modules 3 and the third group of control switch modules 3 to turn off, includes:

[0131] The first control switch and the third control switch are controlled to be turned on, and the second control switch and the fourth control switch are controlled to be turned off.

[0132] The above-mentioned control of the third group of control switch modules 3 to turn on, and the control of the first group of control switch modules 3 and the second group of control switch modules 3 to turn off, includes:

[0133] The first control switch and the fourth control switch are controlled to be turned on, and the second control switch and the third control switch are controlled to be turned off.

[0134] In another exemplary embodiment of the present application, the above-mentioned life test system for electrical equipment further includes a discharge module 5. Accordingly, the above-mentioned life test method for electrical equipment further includes:

[0135] Step 401: Control the discharge module 5 to discharge the electrical device under test.

[0136] In another exemplary embodiment of the present application, the discharge module 5 includes a discharge resistor network 5-1 and a discharge switch 5-2. The connection relationship between the discharge resistor network 5-1 and the discharge switch 5-2 is described in the above system embodiment and will not be repeated here.

[0137] Accordingly, the above-mentioned method of controlling the on and off of each group of control switch modules 3 according to the target test voltage to control the electrical equipment under test to perform an opening operation or a closing operation according to a preset operation, or controlling the electrical equipment that needs to use a backup DC voltage to use the backup DC voltage, further includes:

[0138] Control the discharge switch 5-2 to be turned off.

[0139] The above step 401 includes the following steps 501 to 503. Among them:

[0140] Step 501: If the trip coil needs to be discharged, the CNC DC power supply 2 is controlled to stop output, the first group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned on, and the second and third groups of control switch modules 3 are controlled to be turned off, until the on time of the discharge switch 5-2 reaches the preset trip discharge time, and the first group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned off.

[0141] Step 502: If the closing coil needs to be discharged, the CNC DC power supply 2 is controlled to stop output, the second group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned on, and the first and third groups of control switch modules 3 are controlled to be turned off, until the on time of the discharge switch 5-2 reaches the preset closing discharge time, and the second group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned off.

[0142] Step 503: If it is necessary to discharge the electrical equipment using the backup DC voltage, the CNC DC power supply 2 is controlled to stop output, the third group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned on, and the first and second groups of control switch modules 3 are controlled to be turned off, until the on time of the discharge switch 5-2 reaches the preset backup discharge time, and the third group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned off.

[0143] Based on the same inventive concept, embodiments of the present application also provide an electrical equipment life testing device for implementing the above-mentioned electrical equipment life testing method. The solution provided by this device is similar to the solution described in the above-mentioned method. Therefore, the specific limitations of one or more embodiments of the electrical equipment life testing device provided below can be found in the above-mentioned limitations of the electrical equipment life testing method and will not be repeated here.

[0144] In an exemplary embodiment, Figure 3 As shown, a life test device 60 for electrical equipment is provided, comprising:

[0145] The first control module 601 is used to control the device status detection module 1 to detect the switch status of the electrical device under test, where the switch status includes open and closed. The electrical device under test includes a circuit breaker.

[0146] The second control module 602 is configured to cyclically execute the test control operation at a set frequency until the number of opening or closing operations performed by the tested electrical device reaches a set number or the switch state of the tested electrical device no longer changes with the change of the operating voltage;

[0147] The third control module 603 is used to control the digital controlled DC power supply 2 to convert the input voltage into a target test voltage and output it; the target test voltage includes an operating voltage or a standby DC voltage, the operating voltage includes an opening voltage or a closing voltage, and the switching state of the operating voltage is opposite to the switching state of the electrical device under test;

[0148] The fourth control module 604 is used to control the electrical equipment under test to perform opening or closing operations according to a preset test process by controlling the connection and disconnection of each group of control switch modules 3 according to the target test voltage, or to control the electrical equipment that needs to use the backup DC voltage to use the backup DC voltage.

[0149] In another exemplary embodiment of the present application, the first control module 601 is further configured to control the device status detection module 1 to detect the switch status of the electrical device under test according to the following steps:

[0150] The differential voltage detection feedback module 1 - 1 is controlled to apply a state test voltage to both ends of the electrical device under test and detect the voltage difference between the two ends of the electrical device under test, so as to feed back the switch state of the electrical device under test through the voltage difference.

[0151] In another exemplary embodiment of the present application, the third control module 603 is further configured to control the digital controlled DC power supply 2 to convert the input voltage into a target test voltage and output the target test voltage according to the following steps:

[0152] If the switch state of the electrical equipment under test is open, the digital control DC power supply 2 is controlled to convert the input voltage into a closing voltage and output it;

[0153] If the switch state of the electrical equipment under test is closed, the digital control DC power supply 2 is controlled to convert the input voltage into an opening voltage and output it;

[0154] If a backup DC voltage is needed, the digital controlled DC power supply 2 is controlled to convert the input voltage into a backup DC voltage and output it.

[0155] In another exemplary embodiment of the present application, the electrical device under test is a circuit breaker, and the third control module 603 is further configured to execute the following steps: if a backup DC voltage is required, control the digital controlled DC power supply 2 to convert the input voltage into the backup DC voltage and output it:

[0156] After the closing operation is performed, the digital controlled DC power supply 2 is controlled to convert the input voltage into the energy storage voltage of the circuit breaker.

[0157] In another exemplary embodiment of the present application, the fourth control module 604 is configured to control the electrical equipment under test to perform an opening or closing operation according to a preset test process by controlling the on and off of each group of control switch modules 3 according to the target test voltage in accordance with the following steps, or to control the electrical equipment requiring a backup DC voltage to use the backup DC voltage:

[0158] If the digital-controlled DC power supply 2 outputs a tripping voltage, the first group of control switch modules 3 is controlled to be turned on, and the second group of control switch modules 3 and the third group of control switch modules 3 are controlled to be turned off, so that the electrical equipment under test performs a tripping operation according to the test process. After the switch state of the electrical equipment under test changes from the closed state to the open state, the digital-controlled DC power supply 2 is controlled to stop outputting the tripping voltage and the first group of control switch modules 3 is controlled to be turned off;

[0159] If the digital control DC power supply 2 outputs the closing voltage, the second group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the third group of control switch modules 3 are controlled to be turned off, so that the electrical equipment under test performs the closing operation according to the test process. After the switch state of the electrical equipment under test is converted from the open state to the closed state, the digital control DC power supply 2 is controlled to stop outputting the closing voltage and the second group of control switch modules 3 is controlled to be turned off;

[0160] If the digital controlled DC power supply 2 outputs a backup DC voltage, the third group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the second group of control switch modules 3 are controlled to be turned off, so that the electrical equipment that needs to use the backup DC voltage uses the backup DC voltage.

[0161] In another exemplary embodiment of the present application, the electrical device under test is a circuit breaker, and the second end of the third group of control switch modules 3 is used to connect to the energy storage motor of the circuit breaker.

[0162] The fourth control module 604 is further configured to:

[0163] If the digital controlled DC power supply 2 outputs the energy storage voltage, the third group of control switch modules 3 is controlled to be turned on, and the first group of control switch modules 3 and the second group of control switch modules 3 are controlled to be turned off, so as to charge the energy storage motor of the circuit breaker.

[0164] In another exemplary embodiment of the present application, the three groups of control switch modules 3 include four control switches. The connection relationship of the four control switches is described in the above system embodiment and will not be repeated here.

[0165] Correspondingly, the fourth control module 604 is further configured to control the first group of control switch modules 3 to be turned on, and control the second group of control switch modules 3 and the third group of control switch modules 3 to be turned off according to the following steps:

[0166] Control the first control switch and the second control switch to be turned on, and control the third control switch and the fourth control switch to be turned off;

[0167] Follow the steps below to control the second group of control switch modules 3 to turn on, and control the first group of control switch modules 3 and the third group of control switch modules 3 to turn off:

[0168] Control the first control switch and the third control switch to be turned on, and control the second control switch and the fourth control switch to be turned off;

[0169] Follow the steps below to control the third group of control switch modules 3 to turn on, and control the first group of control switch modules 3 and the second group of control switch modules 3 to turn off:

[0170] The first control switch and the fourth control switch are controlled to be turned on, and the second control switch and the third control switch are controlled to be turned off.

[0171] In another exemplary embodiment of the present application, the above-mentioned life test system for electrical equipment further includes a discharge module 5. Accordingly, the above-mentioned life test device for electrical equipment further includes:

[0172] The fifth control module is used to control the discharge module 5 to discharge the electrical equipment under test.

[0173] In another exemplary embodiment of the present application, the discharge module 5 includes a discharge resistor network 5-1 and a discharge switch 5-2. The connection relationship between the discharge resistor network 5-1 and the discharge switch 5-2 is described in the above system embodiment and will not be repeated here.

[0174] Correspondingly, the fifth control module is further configured to control the discharge module 5 to discharge the electrical device under test according to the following steps:

[0175] If it is necessary to discharge the tripping coil, the digital control DC power supply 2 is controlled to stop outputting, the first group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned on, and the second and third groups of control switch modules 3 are controlled to be turned off, until the on time of the discharge switch 5-2 reaches the preset tripping discharge time, and the first group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned off;

[0176] If the closing coil needs to be discharged, the digital control DC power supply 2 is controlled to stop output, the second group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned on, and the first and third groups of control switch modules 3 are controlled to be turned off, until the on time of the discharge switch 5-2 reaches the preset closing discharge time, and the second group of control switch modules 3 and the discharge switch 5-2 are controlled to be turned off;

[0177] If it is necessary to discharge the electrical equipment using the backup DC voltage, control the CNC DC power supply 2 to stop output, control the third group of control switch modules 3 and the discharge switch 5-2 to be turned on, and control the first and second groups of control switch modules 3 to be turned off, until the on time of the discharge switch 5-2 reaches the preset backup discharge time, and control the third group of control switch modules 3 and the discharge switch 5-2 to be turned off.

[0178] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 4As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store test data of a life test method for electrical equipment. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a life test method for electrical equipment is implemented.

[0179] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0180] In an exemplary embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0181] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0182] In an exemplary embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0183] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0184] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0185] The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may include, but are not limited to, general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic units, data processing logic units based on quantum computing, and the like.

[0186] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0187] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core concept of this application. At the same time, for those skilled in the art, based on the concept of this application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A life test system for electrical equipment, characterized in that: The life test system of the electrical equipment comprises: An equipment status detection module (1) is used to detect the switch status of the electrical equipment under test; the switch status includes open or closed, and the electrical equipment under test includes a circuit breaker; A digitally controlled DC power supply (2) is used to convert an input voltage into a target test voltage and output the target test voltage; the target test voltage includes an operating voltage or a standby DC voltage, the operating voltage includes an opening voltage or a closing voltage, the operating state of the operating voltage is opposite to the switching state of the electrical device under test, and the standby DC voltage includes an energy storage voltage; Three groups of control switch modules (3), wherein the first end of each group of control switch modules (3) is connected to the output end of the digital control DC power supply (2), the second ends of the first and second groups of control switch modules (3) are used to be connected to the opening coil and the closing coil of the electrical equipment under test, and the second end of the third group of control switch modules (3) is used as a standby DC voltage output end.

2. The life test system for electrical equipment according to claim 1, characterized in that: The device state detection module (1) comprises a differential voltage detection feedback module (1-1), wherein: The differential voltage detection feedback module (1-1) is used to apply a state test voltage to both ends of the electrical device under test and detect the voltage difference between the two ends of the electrical device under test, so as to feed back the switch state of the electrical device under test through the voltage difference.

3. The life test system for electrical equipment according to claim 1, characterized in that: Also includes: A control module (4) is used to control the device status detection module (1) to detect the switch status of the electrical device under test; Controlling the digital controlled DC power supply (2) to convert the input voltage into a target test voltage and output the target test voltage; According to the target test voltage, by controlling the on and off of each group of control switch modules (3), the electrical equipment under test is controlled to perform an opening operation or a closing operation according to a preset test process, or the electrical equipment requiring the use of a standby DC voltage is controlled to use the standby DC voltage.

4. The life test system for electrical equipment according to claim 1, characterized in that: Also includes: A discharge module (5) is used for discharging the electrical equipment under test according to instructions.

5. The life test system for electrical equipment according to claim 4, characterized in that: The discharge module (5) comprises a discharge resistance network (5-1) and a discharge switch (5-2), wherein: The first end of the discharge resistance network (5-1) is connected to the second end of the discharge switch (5-2), the second end of the discharge resistance network (5-1) is grounded, and the second end of the discharge switch (5-2) is connected to the first end of the three groups of control switch modules (3); or, the second end of the discharge resistance network (5-1) is connected to the first end of the three groups of control switch modules (3), and the second end of the discharge switch (5-2) is grounded.

6. The life test system for electrical equipment according to claim 1, characterized in that: Also includes: A first interface (6) is used to connect the device status detection module (1) with the electrical device under test; The second interface (7) is used for detachably connecting each group of the control switch modules (3) to the electrical device under test.

7. A life test method for electrical equipment, characterized in that: The life test system for an electrical device according to any one of claims 1 to 6, wherein the life test method for the electrical device comprises: Controlling the device status detection module (1) to detect the switch status of the electrical device under test; The test control operation is cyclically performed at a set frequency until the number of opening or closing operations performed by the electrical equipment under test reaches a set number or the switch state of the electrical equipment under test no longer changes with the change of the operating voltage; the test control operation includes: Controlling the digital controlled DC power supply (2) to convert the input voltage into the target test voltage and output the target test voltage; According to the target test voltage, the switching on and off of each group of the control switch modules (3) is controlled to control the tested electrical equipment to perform an opening operation or a closing operation according to a preset test process, or to control the electrical equipment that needs to use a standby DC voltage to use the standby DC voltage.

8. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the life test method for electrical equipment according to claim 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the life test method of the electrical device according to claim 7 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the life test method of the electrical device according to claim 7 are implemented.

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