Dual-power switching switch calibration device and calibration method

Abstract

The present invention belongs to the technical field of dual power switch calibration, and discloses a dual power switch calibration device and a calibration method. The calibration method adopts the dual power switch calibration device. The dual power switch calibration device includes a main circuit, a sub-circuit, a voltage transmission system, a control system and a display system. The main circuit is sequentially equipped with a first switch and a first indicator light, and the sub-circuit is sequentially equipped with a second switch and a second indicator light. The voltage transmission system is electrically connected to the main circuit, the sub-circuit and the dual power switch to be tested, the voltage transmission system is electrically connected to the control system, and the control system is electrically connected to the display system. The dual power switch calibration device switches the main circuit and the sub-circuit by adjusting the first switch and the second switch, and then records the first voltage value, the second voltage value and the third voltage value and can obtain the switching time, so as to achieve the purpose of calibrating the dual power switch. It is not only easy to operate, but also has high accuracy and high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of double power supply switch calibration, and particularly to a double power supply switch calibration device and a calibration method. Background Art

[0002] A double power supply switch is a switch that automatically switches to another power supply in case of power failure. Usually, for a distribution box where the downstream load is relatively important, there are usually two input power supplies to ensure that when one power supply is lost, the output does not lose power, ensuring the power consumption safety of the system.

[0003] To ensure the performance of the double power supply switch, it is usually necessary to test its switching performance during maintenance. The existing testing methods usually judge by disconnecting and closing the upstream power supply. However, there are some problems with this testing method. For example, when detecting the performance of the double power supply switch, if the upstream power supply is also under maintenance at the same time, it will cause the inability to supply power to the double power supply switch, resulting in the delay of the maintenance of the double power supply switch and affecting work efficiency; after the double power supply switch is powered on and the switching is completed, it is necessary to measure the voltages on the input and output sides of the double power supply switch to determine whether the double power supply switch can switch normally. This operation requires the staff to operate under live conditions, with the risk of electric shock and a low safety factor; when calibrating the double power supply switch, someone needs to perform opening and closing operations on the upstream side, and someone on the downstream side needs to monitor the double power supply switch to confirm the action state of the double power supply switch. At least two people are required to complete this work. If the upstream is far away, communication equipment is also required, resulting in a high labor cost; the calibration process of the traditional double power supply switch can only confirm its switchability through this process, but the specific switching time is unknown. If the switching time is long, there may also be a problem of short-term power loss on the downstream side. Therefore, the traditional calibration process has low accuracy.

[0004] Therefore, there is an urgent need for a double power supply switch calibration device and a calibration method to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a double power supply switch calibration device and a calibration method. The calibration device can quickly calibrate the on-off performance of the double power supply switch, with not only high accuracy but also high calibration efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A double power supply switch calibration device, the double power supply switch calibration device includes:

[0008] A main circuit and a sub-circuit, the input end of the main circuit is connected to an external power supply, the output end of the main circuit is connected to a first input end of a dual power switch to be tested, and the main circuit is sequentially installed with a first switch and a first indicator light; the input end of the sub-circuit is connected to an external power supply, the output end of the sub-circuit is connected to a second input end of the dual power switch to be tested, and the sub-circuit is sequentially installed with a second switch and a second indicator light;

[0009] A voltage transmission system, the voltage transmission system is electrically connected to the output end of the dual power switch to be tested through a first wire, a third indicator light is provided on the first wire, the voltage transmission system is electrically connected to the main circuit through a second wire, the voltage transmission system is electrically connected to the auxiliary circuit through a third wire, and the voltage transmission system is used to collect a first input voltage of the main circuit, a second input voltage of the auxiliary circuit, and an output voltage of the output end of the dual power switch to be tested;

[0010] A control system, the control system is electrically connected to the voltage transmission system, the control system is used to receive the first input voltage, the second input voltage and the output voltage collected by the voltage transmission system, and obtain the switching time of the dual power switch to be tested according to the first input voltage, the second input voltage and the output voltage;

[0011] The display system is electrically connected to the control system, and the display system is used to display the first input voltage, the second input voltage, the output voltage and the switching time.

[0012] Preferably, one end of the second wire connected to the main circuit is located between the first switch and the first indicator light, and one end of the third wire connected to the secondary circuit is located between the second switch and the second indicator light.

[0013] Preferably, the main circuit is further provided with a phase shifter, and the phase shifter is located between the first switch and the second conductor.

[0014] Preferably, the dual power supply switching switch verification device also includes a conversion module, which is arranged between the external power supply and the input end of the main circuit and the input end of the auxiliary circuit, and is used to regulate the voltage of the external power supply.

[0015] Preferably, the dual power switching switch verification device also includes a power supply system, one end of the power supply system is arranged between the conversion module and the first switch and the second switch, and the other end of the power supply system is electrically connected to the control system and the voltage transmission system.

[0016] Preferably, the display system includes a display screen, and the display screen is electrically connected to the control system.

[0017] Preferably, the control system further comprises a storage component.

[0018] Preferably, the control system is a single chip microcomputer, which is electrically connected to the display screen and the voltage transmission system.

[0019] Preferably, the dual power switching switch verification device includes a device body, and a main circuit, a secondary circuit, a voltage transmission system, a control system and a display system are all arranged in the device body.

[0020] The present invention also adopts the following technical solutions:

[0021] The calibration method is applicable to the above-mentioned dual power switch calibration device, and the calibration method comprises the following steps:

[0022] S10, connecting the output end of the main circuit to the first input end of the dual power switch to be tested, connecting the output end of the auxiliary circuit to the second input end of the dual power switch to be tested, connecting the output end of the dual power switch to be tested to a voltage transmitter, and connecting the input end of the main circuit and the input end of the auxiliary circuit to an external power supply;

[0023] S20, close the second switch, confirm the on and off status of the first indicator light, the second indicator light and the third indicator light, if the first indicator light is off, and the second indicator light and the third indicator light are on, then record the values ​​of the second input voltage and the output voltage at this time;

[0024] S30, close the first switch, confirm the on and off status of the first indicator light, the second indicator light and the third indicator light, if the second indicator light is off, and the first indicator light and the third indicator light are on, then record the values ​​of the first input voltage and the output voltage at this time, and record the switching time;

[0025] S40, turning off the first switch, confirming the on and off status of the first indicator light, the second indicator light and the third indicator light, if the first indicator light is off and the second indicator light and the third indicator light are on, then recording the values ​​of the second input voltage and the output voltage at this time, and recording the switching time;

[0026] S50, disconnect the second switch, the main circuit, and the auxiliary circuit, and confirm the on and off status of the first indicator light, the second indicator light, and the third indicator light. If the first indicator light, the second indicator light, and the third indicator light are all off, disconnect the input end of the main circuit and the input end of the auxiliary circuit from the external power supply.

[0027] Beneficial effects of the present invention:

[0028] The present invention discloses a dual power switch verification device, which includes a main circuit, a sub-circuit, a voltage transmission system, a control system and a display system. The main circuit is connected to the first input end of the dual power switch to be tested, and the sub-circuit is connected to the second input end of the dual power switch to be tested. The main circuit is sequentially installed with a first switch and a first indicator light, and the sub-circuit is sequentially installed with a second switch and a second indicator light. The voltage transmission system is electrically connected to the main circuit, the sub-circuit and the dual power switch to be tested, and can collect the values ​​of the first input voltage, the second input voltage and the output voltage, and output them to the control system. The control system receives the voltage signal and obtains the switching time according to the voltage value, and then transmits the voltage value and the switching time to the display system for display. This dual power switch verification device can switch the main circuit and the sub-circuit by adjusting the first switch and the second switch, and then record the first voltage value, the second voltage value and the third voltage value and obtain the switching time, so as to achieve the purpose of verifying the dual power switch. It is not only simple and convenient to operate, but also has high accuracy and high efficiency.

[0029] The present invention also provides a dual-power switching switch calibration method, which can conveniently calibrate the dual-power switching switch to be tested, and has high efficiency and high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of a dual power switch calibration device according to an embodiment of the present invention.

[0031] In the figure:

[0032] 1. Dual power switch to be tested;

[0033] 10. Main circuit; 11. First switch; 12. First indicator light; 13. Phase shifter;

[0034] 20. Auxiliary circuit; 21. Second switch; 22. Second indicator light;

[0035] 30. Voltage transmission system; 31. Third indicator light;

[0036] 40. Conversion module;

[0037] 50. Power supply system;

[0038] 60. Single chip microcomputer;

[0039] 70. Display screen. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings, rather than all structures.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] The dual-power switching switch plays a very important role in a circuit system that cannot be powered off. To ensure its performance, it is usually necessary to detect its switching performance during maintenance. In the prior art, there is a lack of a special dual-power switching switch calibration device. When performing detection, it not only consumes a lot of manpower, but also has low detection efficiency and low accuracy of detection results.

[0045] Accordingly, this embodiment provides a dual-power switching switch calibration device.

[0046] As Figure 1As shown, the present embodiment provides a dual power switch verification device, which includes a main circuit 10, a sub-circuit 20, a voltage transmission system 30, a control system and a display system. The input end of the main circuit 10 is connected to an external power supply, and the output end of the main circuit 10 is connected to a first input end of the dual power switch 1 to be tested, and the main circuit 10 is sequentially installed with a first switch 11 and a first indicator light 12; the input end of the sub-circuit 20 is connected to an external power supply, and the output end of the sub-circuit 20 is connected to a second input end of the dual power switch 1 to be tested, and the sub-circuit 20 is sequentially installed with a second switch 21 and a second indicator light 22; the voltage transmission system 30 is electrically connected to the output end of the dual power switch 1 to be tested through a first wire, and the first wire is provided with A third indicator light 31 is provided, the voltage transmission system 30 is electrically connected to the main circuit 10 through a second wire, the voltage transmission system 30 is electrically connected to the auxiliary circuit 20 through a third wire, and the voltage transmission system 30 is used to collect the first input voltage of the main circuit 10, the second input voltage of the auxiliary circuit 20, and the output voltage of the output end of the dual power supply switching switch 1 to be tested; the control system is electrically connected to the voltage transmission system 30, and the control system is used to receive the first input voltage, the second input voltage and the output voltage collected by the voltage transmission system 30, and obtain the switching time of the dual power supply switching switch 1 to be tested according to the first input voltage, the second input voltage and the output voltage; the display system is electrically connected to the control system, and the display system is used to display the first input voltage, the second input voltage, the output voltage and the switching time. Specifically, in this embodiment, the main circuit 10 is connected to the first input end of the dual power switch 1 to be tested, and is used to supply power to the first circuit of the dual power switch 1 to be tested. The first switch 11 is used to control the on and off of the main circuit 10, and the first indicator light 12 is used to indicate the on and off of the main circuit 10; the auxiliary circuit 20 is connected to the second input end of the dual power switch 1 to be tested, and is used to supply power to the second circuit of the dual power switch 1 to be tested. The second switch 21 is used to control the on and off of the auxiliary circuit 20, and the second indicator light 22 is used to indicate the on and off of the auxiliary circuit 20; the voltage transmission system 30 is connected to the output end of the dual power switch 1 to be tested through a first wire, and is used to collect the output voltage of the output end. The first wire is provided with a third indicator light 31, which is used to indicate the on and off between the voltage transmission system 30 and the dual power switch 1 to be tested; the voltage transmission system 30 is electrically connected to the main circuit 10 through the second wire, and the voltage transmission system 30 is electrically connected to the auxiliary circuit 20 through the third wire, and is used to collect the first input voltage of the main circuit 10 and the second input voltage of the auxiliary circuit 20 respectively.The control system is electrically connected to the voltage transmission system 30, and the voltage transmission system 30 can convert the first input voltage, the second input voltage and the output voltage into analog signals and transmit them to the control system. The control system is electrically connected to the display system, and then the first input voltage, the second input voltage and the output voltage are displayed to ensure that the voltage during the verification process meets the verification standard, and the control system can record the switching time of the first input voltage and the second input voltage, which is the switching time of the dual power switching switch 1 to be tested, and can transmit the time to the display system for display to ensure the accuracy of the verification.

[0047] Furthermore, one end of the second wire connected to the main circuit 10 is located between the first switch 11 and the first indicator light 12, and one end of the third wire connected to the secondary circuit 20 is located between the second switch 21 and the second indicator light 22. Specifically, this arrangement enables the voltage transmission system 30 to be arranged as close as possible to the dual power supply switching switch 1 to be tested, ensuring that the values ​​of the first input voltage and the second input voltage are relatively accurate, further improving the accuracy of the calibration.

[0048] Furthermore, the main circuit 10 is also provided with a phase shifter 13, which is located between the first switch 11 and the second conductor. Specifically, the phase shifter 13 can simulate the phase relationship of the dual power switch 1 to be tested in actual use as much as possible, ensuring that the verification is more in line with reality and the verification result is more accurate.

[0049] Furthermore, the dual power switch verification device also includes a conversion module 40, which is arranged between the external power supply and the input end of the main circuit 10 and the input end of the auxiliary circuit 20, and is used to adjust the voltage of the external power supply. Specifically, this arrangement enables the input voltage to be adjusted to 380V through the conversion module 40 when the external voltage is 240V, so as to meet the voltage requirement of the dual power switch 1 to be tested, thereby improving the use flexibility of the dual power switch verification device and avoiding the reduction of verification efficiency due to voltage mismatch.

[0050] Furthermore, the dual power switching switch verification device also includes a power supply system 50, one end of which is arranged between the conversion module 40 and the first switch 11 and the second switch 21, and the other end of the power supply system 50 is electrically connected to the control system and the voltage transmission system 30. Specifically, in the present embodiment, the power supply system 50 can adjust the external power supply, can provide power to the voltage transmission system 30 and the control system, avoids the need to use an external power supply to power them, and can increase the flexibility and convenience of the dual power switching switch verification device. In other embodiments, an external power supply can also be used to provide power to the voltage transmission system 30 and the control system, which will not be described in detail here.

[0051] Further, the display system includes a display screen 70, and the display screen 70 is electrically connected to the control system. Specifically, in this embodiment, the display screen 70 can display the first input voltage, the second input voltage and the output voltage, and can also display the switching time of the dual power switch 1 to be tested, thereby increasing the accuracy and visibility of the verification, and can directly obtain the performance parameters of the dual power switch 1 to be tested based on the data of the display screen 70, so that the verification is convenient and the reliability is high.

[0052] Furthermore, the control system also includes a storage component. Specifically, in this embodiment, the storage component is set to store the data in the verification process, which is convenient for subsequent reference and comparison with previous verification data, and can track and compare the historical data of the same dual power switching switch 1 to be tested, so as to determine whether the performance of the dual power switching switch 1 to be tested is stable.

[0053] Furthermore, the control system is a single chip microcomputer 60, which is electrically connected to the display screen 70 and the voltage transmitter system 30. Specifically, the control system is a single chip microcomputer 60, which has the advantages of high integration, small size, light weight, and flexible use, and can be easily carried.

[0054] Furthermore, the dual power switch verification device includes a device body, and the main circuit 10, the auxiliary circuit 20, the voltage transmission system 30, the control system and the display system are all arranged in the device body. Specifically, in this embodiment, the dual power switch verification device is integrated into a device body, the main circuit 10, the voltage transmission system 30, the control system are arranged inside the device body, and the display screen 70 of the display system is arranged on the device body, which is easy to carry and flexible to use.

[0055] This embodiment also provides a verification method, which is applicable to the above-mentioned dual power switch verification device.

[0056] The calibration method is applicable to the above-mentioned dual power switch calibration device, and the calibration method comprises the following steps:

[0057] S10, connect the output end of the main loop 10 to the first input end of the dual power supply switching switch 1 to be tested, connect the output end of the auxiliary loop 20 to the second input end of the dual power supply switching switch 1 to be tested, connect the output end of the dual power supply switching switch 1 to be tested to a voltage transmitter, and connect the input end of the main loop 10 and the input end of the auxiliary loop 20 to an external power supply.

[0058] Specifically, the voltage of the external power supply at the verification site is usually 240V. The conversion module 40 is set to convert the input voltage into a voltage suitable for the dual power switching switch 1 to be tested, which can ensure the normal development of the on-site verification; and in this step, it is assumed that the first switch 11 and the second switch 21 are both in the open state.

[0059] S20. Close the second switch 21, and confirm the on / off states of the first indicator light 12, the second indicator light 22, and the third indicator light 31. If the first indicator light 12 is off and the second indicator light 22 and the third indicator light 31 are on, record the values of the second input voltage and the output voltage at this time.

[0060] Specifically, when closing the second switch 21, it simulates the situation where the main circuit 10 fails and the auxiliary circuit 20 needs to supply power. The main circuit 10 remains disconnected, the auxiliary circuit 20 switches to a conducting state, the first indicator light 12 is off, indicating that the main circuit 10 is open, and the second indicator light 22 and the third indicator light 31 are on, indicating that the auxiliary circuit 20 is conducting. Since the main circuit 10 is open, the first input voltage displayed on the display screen 70 is in a no-voltage state, and record the second input voltage and the output voltage displayed on the display screen 70 at this time.

[0061] Step S20 further includes the following steps:

[0062] S21. If the first indicator light 12 is on, and / or the second indicator light 22 and the third indicator light 31 are off, check the wiring.

[0063] S30. Close the first switch 11, and confirm the on / off states of the first indicator light 12, the second indicator light 22, and the third indicator light 31. If the second indicator light 22 is off and the first indicator light 12 and the third indicator light 31 are on, record the values of the first input voltage and the output voltage at this time, and record the switching time.

[0064] Specifically, when closing the first switch 11, it simulates the situation where the fault of the main circuit 10 is cleared and the main circuit 10 supplies power again. Due to the working nature of the dual-power switch 1 to be measured, the auxiliary circuit 20 is disconnected at this time, and the main circuit 10 switches from being disconnected to being conducting. The main circuit 10 supplies power to the dual-power switch 1 to be measured through the first input terminal. The first indicator light 12 and the third indicator light 31 are on, indicating that the main circuit 10 is conducting, and the second indicator light 22 is off, indicating that the auxiliary circuit 20 is disconnected; the second input voltage of the display screen 70 is in a no-voltage state, record the value of the first input voltage and the output voltage displayed on the display screen 70 at this time; and record the switching time when the control system determines that the dual-power switch 1 to be measured switches from being powered by the auxiliary circuit 20 to being powered by the main circuit 10 based on the change of the first voltage value from no voltage to having voltage.

[0065] Optionally, the control system can also obtain the switching time when the dual-power switch 1 to be measured switches from being powered by the auxiliary circuit 20 to being powered by the main circuit 10 according to the change of the second input voltage from having voltage to no voltage.

[0066] Step S30 further includes the following steps:

[0067] S31. If the second indicator light 22 is on, and / or the first indicator light 12 and the third indicator light 31 are off, check the wiring.

[0068] S40. Disconnect the first switch 11, and confirm the on / off states of the first indicator light 12, the second indicator light 22, and the third indicator light 31. If the first indicator light 12 is off, and the second indicator light 22 and the third indicator light 31 are on, record the values of the second input voltage and the output voltage at this time, and record the switching time.

[0069] Specifically, disconnect the first switch 11. At this time, the main circuit 10 is disconnected, and the auxiliary circuit 20 is conducting. The auxiliary circuit 20 supplies power to the double power supply transfer switch 1 to be tested. The first indicator light 12 is off, indicating that the main circuit 10 is disconnected. The second indicator light 22 and the third indicator light 31 are on, indicating that the auxiliary circuit 20 is conducting. The first input voltage displayed on the display screen 70 is in a no-voltage state. Record the second input voltage and the output voltage at this time, and record the switching time when the control system determines that the double power supply transfer switch 1 to be tested switches from being powered by the main circuit 10 to being powered by the auxiliary circuit 20 based on the change of the first input voltage from having voltage to no voltage.

[0070] Optionally, the control system can also determine the switching time when the double power supply transfer switch 1 to be tested switches from being powered by the main circuit 10 to being powered by the auxiliary circuit 20 based on the change of the second input voltage from no voltage to having voltage.

[0071] Step S40 further includes the following steps:

[0072] S41. If the first indicator light 12 is on, and / or the second indicator light 22 and the third indicator light 31 are off, check the wiring.

[0073] S50. Disconnect the second switch 21. The main circuit 10 is disconnected, and the auxiliary circuit 20 is disconnected. Confirm the on / off states of the first indicator light 12, the second indicator light 22, and the third indicator light 31. If the first indicator light 12, the second indicator light 22, and the third indicator light 31 are all off, disconnect the input ends of the main circuit 10 and the auxiliary circuit 20 from the external power supply.

[0074] Specifically, disconnect the second switch 21 to cut off the power supply of the double power supply transfer switch 1 to be tested. The first indicator light 12, the second indicator light 22, and the third indicator light 31 are all off, completing the entire calibration process. Finally, disconnect the input ends of the main circuit 10 and the auxiliary circuit 20 from the external power supply, and cut off the power supply of the entire double power supply transfer switch calibration device.

[0075] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Double power supply switching switch calibration device, characterized in that, The dual power switch verification device comprises: A main circuit (10) and a secondary circuit (20), wherein the input end of the main circuit (10) is connected to an external power supply, the output end of the main circuit (10) is connected to a first input end of a dual power switch (1) to be tested, and the main circuit (10) is sequentially provided with a first switch (11) and a first indicator light (12); the input end of the secondary circuit (20) is connected to the external power supply, the output end of the secondary circuit (20) is connected to a second input end of the dual power switch (1) to be tested, and the secondary circuit (20) is sequentially provided with a second switch (21) and a second indicator light (22); A voltage transmission system (30), the voltage transmission system (30) being electrically connected to the output end of the dual power switch (1) to be tested via a first wire, a third indicator light (31) being provided on the first wire, the voltage transmission system (30) being electrically connected to the main circuit (10) via a second wire, the voltage transmission system (30) being electrically connected to the auxiliary circuit (20) via a third wire, the voltage transmission system (30) being used to collect a first input voltage of the main circuit (10), a second input voltage of the auxiliary circuit (20) and an output voltage of the output end of the dual power switch (1) to be tested; A control system, the control system being electrically connected to the voltage transmission system (30), the control system being used to receive the first input voltage, the second input voltage and the output voltage collected by the voltage transmission system (30), and to obtain a switching time of the dual power switch (1) to be tested according to the first input voltage, the second input voltage and the output voltage; a display system, the display system being electrically connected to the control system, and the display system being used to display the first input voltage, the second input voltage, the output voltage, and the switching time; One end of the second wire connected to the main circuit (10) is located between the first switch (11) and the first indicator light (12), and one end of the third wire connected to the secondary circuit (20) is located between the second switch (21) and the second indicator light (22).

2. The double power supply transfer switch calibration device according to claim 1, wherein The main circuit (10) is further provided with a phase shifter (13), and the phase shifter (13) is located between the first switch (11) and the second conducting wire.

3. The double power supply switching switch calibration device according to claim 2, wherein, The dual power switch verification device further comprises a conversion module (40), wherein the conversion module (40) is arranged between the external power source and the input end of the main circuit (10) and the input end of the secondary circuit (20), and is used for regulating the voltage of the external power source.

4. The double power supply switching switch calibration device according to claim 3, characterized in that The dual power switch verification device further comprises a power system (50), one end of the power system (50) being arranged between the conversion module (40) and the first switch (11), and the second switch (21), and the other end of the power system (50) being electrically connected to the control system and the voltage transmission system (30).

5. The double power supply switching switch calibration device according to claim 4, characterized in that The display system comprises a display screen (70), and the display screen (70) is electrically connected to the control system.

6. The double power supply switching switch calibration device according to claim 5, wherein, The control system also includes a storage component.

7. The double power supply transfer switch calibration device according to claim 5, wherein, The control system is a single chip microcomputer (60), and the single chip microcomputer (60) is electrically connected to the display screen (70) and the voltage transmission system (30).

8. The double-power-supply switching switch calibration device according to any one of claims 1-7, characterized in that, The dual power supply switch verification device comprises a device body, wherein the main circuit (10), the auxiliary circuit (20), the voltage transmission system (30), the control system and the display system are all arranged in the device body.

9. A calibration method for a dual-power switching switch, applicable to the dual-power switching switch calibration device described in any one of claims 1-8, characterized in that, The verification method comprises the following steps: S10, connecting the output end of the main circuit (10) to the first input end of the dual power switch (1) to be tested, connecting the output end of the auxiliary circuit (20) to the second input end of the dual power switch (1) to be tested, connecting the output end of the dual power switch (1) to be tested to the voltage transmitter, and connecting the input end of the main circuit (10) and the input end of the auxiliary circuit (20) to the external power supply; S20, closing the second switch (21), confirming the on / off status of the first indicator light (12), the second indicator light (22) and the third indicator light (31); if the first indicator light (12) is off and the second indicator light (22) and the third indicator light (31) are on, recording the values ​​of the second input voltage and the output voltage at this time; S30, closing the first switch (11), confirming the on / off status of the first indicator light (12), the second indicator light (22) and the third indicator light (31); if the second indicator light (22) is off and the first indicator light (12) and the third indicator light (31) are on, recording the values ​​of the first input voltage and the output voltage at this time, and recording the switching time; S40, disconnecting the first switch (11), confirming the on / off status of the first indicator light (12), the second indicator light (22) and the third indicator light (31); if the first indicator light (12) is off and the second indicator light (22) and the third indicator light (31) are on, recording the values ​​of the second input voltage and the output voltage at this time, and recording the switching time; S50, disconnecting the second switch (21), confirming the on / off status of the first indicator light (12), the second indicator light (22) and the third indicator light (31); if the first indicator light (12), the second indicator light (22) and the third indicator light (31) are all off, disconnecting the input end of the main circuit (10) and the input end of the auxiliary circuit (20) from the external power supply.

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