Intelligent verification method based on standardized relay protection tester control interface

Abstract

The invention discloses an intelligent verification method based on a standardized relay protection tester control interface, and relates to the technical field of relay protection tester control interface verification, and the method comprises the following steps: 1, constructing a set of standardized control instruction set and data format irrelevant to a specific tester model; 2, a special data format adapter is developed for each tester model, the adapter is responsible for translating a standardized instruction issued by an upper layer into a specific instruction of a native communication protocol of the tester of the model and sending the specific instruction to the tester, and meanwhile response data returned by the tester is analyzed and packaged into a standardized data format to be returned; according to the intelligent verification method based on the standardized relay protection tester control interface, decoupling of upper-layer application and bottom-layer tester hardware is achieved through the standardized interface and the data format adapter, testers of different manufacturers and different models can be controlled to conduct verification work, and the applicability of the method is high.

Description

Technical Field

[0001] This invention relates to the field of relay protection tester control interface verification technology, specifically to an intelligent verification method based on a standardized relay protection tester control interface. Background Technology

[0002] Relay protection devices are the "first line of defense" ensuring the safe and stable operation of power systems, and their correctness, reliability, and speed of operation are crucial. Therefore, regular and standardized verification of relay protection devices is a core aspect of power system operation and maintenance. Relay protection testers are the core equipment for performing this verification work. They are used to apply simulated fault electrical quantities (voltage, current) to the protection devices and receive their operational feedback to verify the correctness of their protection logic, settings, and operating timing.

[0003] However, relay protection tester calibration has the following drawbacks: the heterogeneity and closed nature of the tester's control interface makes system integration difficult. Despite international standards, testers from different manufacturers, and even different models from the same manufacturer, differ significantly in their specific communication protocols, data models, instruction sets, and function call methods. This non-standardized implementation necessitates that upper-level application software develop dedicated communication drivers and control logic for each specific tester model. As a result, any automated testing system heavily relies on the limited number of tester models it supports. When multiple tester models exist in the field or equipment is upgraded, multiple testing systems need to be maintained for different devices. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent verification method based on the control interface of a standardized relay protection tester, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent verification method based on the control interface of a standardized relay protection tester, comprising the following steps: Step 1: Construct a standardized set of control instructions and data formats that are independent of specific test instrument models; Step 2: Develop a dedicated data format adapter for each tester model. This adapter is responsible for translating the standardized instructions sent from the upper layer into specific instructions of the native communication protocol of the tester model and sending them to the tester. At the same time, it parses and encapsulates the response data returned by the tester into a standardized data format and returns it. Firstly, create a device description file for each tester model, including device connection parameters, input / output channel mapping, and a mapping table from standardized operations to native device commands; Secondly, through a dynamically loadable driver manager, based on the tester model selected by the user, the corresponding driver module and device description file are extracted from the driver library, dynamically loaded into the data format adapter, and the instantiation and initialization of the driver are completed. Third, through the instruction translation model, based on the mapping table, the received standardized control instructions and parameters are converted into specific instruction frames under the target device's native communication protocol and sent. The response data frames returned by the device are parsed and converted into a unified standardized data format. Step 3: Construct a standard test library for relay protection devices. Users select the model of the protection device to be tested and the items to be verified. Based on the built-in test templates and the protection setting sheet and device manual, intelligent test sequences can be automatically generated. Step 4: Through a standardized interface, drive the tester to automatically execute the sequence generated in Step 3, read the output status of the tester and the feedback signals of the protection device in real time, and form a complete data chain for the entire test process; Step 5: Automatically analyze the real-time monitoring data based on the preset expected behavior and judgment logic in the test sequence; Step Six: After all test items have been completed, summarize the process data and analysis results of all test steps and generate a verification report; Step Seven: To calibrate the relay protection tester on-site or during initial maintenance, a calibration procedure is proposed: The operator confirms that the tester to be checked is in a power-off or output-disabled state. Selecting a specific phase current output channel to be checked, the operator uses an insulated wire to directly short-circuit the positive output terminal Ia of the selected current channel to the common return terminal In, thus constructing a near-zero resistance short-circuit loop outside the tester. Simultaneously, the clamp of a clamp meter is reliably clamped at any position on the short-circuit wire. The clamp meter's range should be set to a setting greater than the expected test current. The tester's operating interface uses the manual control mode... In either DC / power frequency fixed-point output mode, set a small safe test current value, briefly start the tester's output, and observe the display of the clamp ammeter during the output period. If the clamp ammeter displays a stable current reading that matches the set value, it is determined that the power amplification hardware of the current output channel is basically normal and has output capability, and subsequent standardized interface fine verification can be performed. If the clamp ammeter does not display, the reading is extremely small and close to zero, or the tester immediately triggers overcurrent protection and alarms, it is determined that the current output channel may have a hardware fault, the subsequent verification process should be stopped, and the tester should be repaired.

[0006] Preferably, the clamp meter used in step seven includes a meter body, on which a knob is installed. Several markings are installed on the surface of the meter body and on the outside of the knob, and each marking represents a current range. A pull bar is fixedly connected to the surface of the knob, and a pinch post is fixedly connected to one end of the pull bar.

[0007] Preferably, a front storage box is fixedly connected to the back of the watch body, and a rear storage box is fixedly connected to the rear of the front storage box. A second test wire is coiled inside the front storage box, and a first test wire is coiled inside the rear storage box. Both ends of the second test wire and the first test wire extend to the top of the front storage box and the rear storage box, respectively. One end of the second test wire and the first test wire are fixedly connected, and the other end of the second test wire and the first test wire are fixedly installed with plugs.

[0008] Preferably, a drive box is fixedly connected inside the front storage box. A first motor is fixedly connected to the top of the inner cavity of the drive box, and a threaded rod is rotatably connected to the bottom of the inner cavity of the drive box via a bearing. The output end of the first motor is connected to the top end of the threaded rod via a coupling. A push plate is threadedly connected to the outer side of the threaded rod. Two drive blocks are fixedly connected to the front and rear surfaces of the push plate. Two guide grooves are opened on the front and rear surfaces of the drive box. One end of each guide groove extends into the front and rear storage boxes, respectively. One end of each drive block is inserted into the guide groove. A guide roller is installed on one end of each drive block. The outer side of the guide roller located inside the rear storage box is in contact with the surface of the first test line, and the outer side of the guide roller located inside the front storage box is in contact with the surface of the second test line. Positioning rollers are fixedly connected to the inner and outer sides of the front storage box. The outer side of the positioning roller located inside the rear storage box is in contact with the outer side of the first test line, and the outer side of the positioning roller located inside the front storage box is in contact with the outer side of the second test line.

[0009] Preferably, a fixing frame is fixedly connected to one side of the watch body, a fixing box is fixedly connected to one end of the fixing frame, a fixing member is fixedly connected to one side of the fixing box, a gear ring is fixedly connected to the surface of the knob and to the outside of the pull bar, a drive column is rotatably connected to one side of the inner cavity of the fixing box via a bearing, a gear that mates with the gear ring is fixedly sleeved on the outside of the drive column, a second motor is fixedly connected to one side of the fixing box, the output end of the second motor extends into the inside of the fixing box and is fixedly connected to a drive shaft, a clutch sleeve is fixedly sleeved on the outside of one end of the drive shaft, and the clutch sleeve is located on the outside of one end of the drive column.

[0010] Preferably, a plurality of storage cavities are provided inside one end of the drive column, and a support spring is fixedly connected to one side of each storage cavity. A push block is fixedly connected to one end of each support spring, and a clutch column is fixedly connected to one end of each push block. One end of each clutch column is inserted into a corresponding clutch groove opened inside the clutch sleeve.

[0011] Preferably, a magnet is fixedly connected to one end of the push block and to both sides of the clutch post, and an electromagnet is fixedly connected to one side of the inner cavity of the receiving cavity and to both sides of the clutch post.

[0012] Preferably, an angle sensor is fixedly connected to one side of the fixing member, a rotating column is fixedly connected to the middle of the knob surface, the detection end of the angle sensor cooperates with one end of the rotating column, and an electronic rotary joint is installed on one side of the fixing frame.

[0013] This invention provides an intelligent verification method based on the control interface of a standardized relay protection tester, which has the following advantages: 1. This intelligent verification method based on the standardized relay protection tester control interface achieves decoupling between the upper-layer application and the lower-layer tester hardware through a standardized interface and data format adapter. It can control testers of different manufacturers and models to perform verification work, making the method highly applicable.

[0014] 2. This intelligent verification method, based on the standardized relay protection tester control interface, initiates the verification program via the controller. An automatic wire feeding and take-up mechanism, consisting of a first motor, threaded rod, and guide rollers, automatically feeds out the required length of test wire. An automatic gear switching system, composed of a second motor, clutch mechanism, and transmission gears, precisely and quickly adjusts the knob to the preset gear. The entire process requires no manual intervention, reducing the original manual preparation time of several minutes to just seconds, and completely eliminating human error caused by incorrect gear selection, ensuring a high degree of consistency and standardization in each verification preparation action. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the body of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the body of the present invention; Figure 3 This is a schematic diagram of the front and rear storage boxes of the present invention; Figure 4 This is a schematic diagram of the internal structure of the front and rear storage boxes of the present invention; Figure 5 This is a schematic diagram of the internal structure of the front storage box of the present invention; Figure 6 This is a schematic diagram of the internal structure of the drive box of the present invention from the front view. Figure 7 This is a schematic diagram of the side view of the body structure of the present invention; Figure 8 This is a top view of the internal structure of the fixing box of the present invention; Figure 9 This is a schematic diagram of the connection structure between the clutch sleeve and the drive column of the present invention.

[0016] In the diagram: 1. Watch body; 2. Knob; 3. Gear ring; 4. Marker; 5. Fixing component; 6. Pinch post; 7. Front storage box; 8. Rear storage box; 9. First test line; 10. Second test line; 11. Drive box; 12. Positioning roller; 13. Guide roller; 14. First motor; 15. Threaded rod; 16. Push plate; 17. Drive block; 18. Guide groove; 19. Plug; 20. Fixing frame; 21. Fixing box; 22. Gear; 23. Drive post; 24. Second motor; 25. Drive shaft; 26. Clutch sleeve; 27. Electronic rotary joint; 28. Storage cavity; 29. ​​Support spring; 30. Electromagnet; 31. Clutch post; 32. Push block; 34. Pull bar; 35. Rotating post; 36. Angle sensor; 37. Clutch groove; 38. Magnet block. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1 Please see Figures 1 to 9 This invention provides a technical solution: an intelligent verification method based on the control interface of a standardized relay protection tester, comprising the following steps: Step 1: Construct a standardized set of control instructions and data formats that are independent of specific test instrument models; Step 2: Develop a dedicated data format adapter for each tester model. This adapter is responsible for translating the standardized instructions sent from the upper layer into specific instructions of the native communication protocol of the tester model and sending them to the tester. At the same time, it parses and encapsulates the response data returned by the tester into a standardized data format and returns it. Firstly, create a device description file for each tester model, including device connection parameters, input / output channel mapping, and a mapping table from standardized operations to native device commands; Secondly, through a dynamically loadable driver manager, based on the tester model selected by the user, the corresponding driver module and device description file are extracted from the driver library, dynamically loaded into the data format adapter, and the instantiation and initialization of the driver are completed. Third, through the instruction translation model, based on the mapping table, the received standardized control instructions and parameters are converted into specific instruction frames under the target device's native communication protocol and sent. The response data frames returned by the device are parsed and converted into a unified standardized data format. Step 3: Construct a standard test library for relay protection devices. Users select the model of the protection device to be tested and the items to be verified. Based on the built-in test templates and the protection setting sheet and device manual, intelligent test sequences can be automatically generated. Step 4: Through a standardized interface, drive the tester to automatically execute the sequence generated in Step 3, read the output status of the tester and the feedback signals of the protection device in real time, and form a complete data chain for the entire test process; Step 5: Automatically analyze the real-time monitoring data based on the preset expected behavior and judgment logic in the test sequence; Step Six: After all test items have been completed, summarize the process data and analysis results of all test steps and generate a verification report; Step Seven: To calibrate the relay protection tester on-site or at the initial stage of maintenance, a calibration procedure is proposed: The operator confirms that the tester to be checked is in a power-off or output-disabled state. Select the current output channel of the phase to be checked. Using an insulated wire, directly short-circuit the positive output terminal Ia of the selected current channel to the common return terminal In, thus constructing a near-zero resistance short-circuit loop outside the tester. Simultaneously, reliably clamp the jaws of a clamp meter at any position on the short-circuit wire. The clamp meter's range should be set to a level greater than the expected test current. Manual control should be used on the tester's operating interface. In either DC / power frequency fixed-point output mode, set a small safe test current value and briefly start the tester's output. During the output, observe the clamp ammeter display. If the clamp ammeter displays a stable current reading that matches the set value, the power amplification hardware of the current output channel is considered to be functioning normally and has output capability, allowing for subsequent standardized interface fine-tuning. If the clamp ammeter displays nothing, the reading is extremely small and close to zero, or the tester immediately triggers overcurrent protection and alarms, the current output channel may have a hardware fault. The subsequent verification process should be stopped, and the tester should be repaired.

[0019] The clamp meter used in step seven includes a meter body 1, a knob 2 mounted on the meter body 1, and several markings 4 mounted on the surface of the meter body 1 and outside the knob 2, with each marking 4 representing a current range. A pull bar 34 is fixedly connected to the surface of the knob 2, and a pinch post 6 is fixedly connected to one end of the pull bar 34. By looking at the marking 4 that one end of the pull bar 34 points to, the current range of the knob 2 can be determined.

[0020] The back of the watch body 1 is fixedly connected to a front storage box 7, and a rear storage box 8 is fixedly connected to the rear of the front storage box 7. A second test line 10 is curled up inside the front storage box 7, and a first test line 9 is curled up inside the rear storage box 8. Both ends of the second test line 10 and the first test line 9 extend to the top of the front storage box 7 and the rear storage box 8, respectively. One end of the second test line 10 and the first test line 9 are fixedly connected, and the other end of the second test line 10 and the first test line 9 are fixedly installed with a plug 19. The second test line 10 and the first test line 9 can be pulled out from the front storage box 7 and the rear storage box 8 through the plug 19.

[0021] The front storage box 7 has a drive box 11 fixedly connected inside. A first motor 14 is fixedly connected to the top of the inner cavity of the drive box 11. A threaded rod 15 is rotatably connected to the bottom of the inner cavity of the drive box 11 via a bearing. The output end of the first motor 14 is connected to the top end of the threaded rod 15 via a coupling. A push plate 16 is threadedly connected to the outer side of the threaded rod 15. Two drive blocks 17 are fixedly connected to the front and rear surfaces of the push plate 16. Two guide grooves 18 are opened on the front and rear surfaces of the drive box 11. One end of each guide groove 18 extends into the front storage box 7 and the rear storage box 8, respectively. One end of each drive block 17 is inserted into the guide groove 18. Each drive block 17 has a guide roller 13 installed at one end. The outer side of the guide roller 13 inside the rear storage box 8 is in contact with the surface of the first test line 9, and the outer side of the guide roller 13 inside the front storage box 7 is in contact with the surface of the second test line 10. The inner and outer sides of the front storage box 7 are fixedly connected with positioning rollers 12. The outer side of the positioning roller 12 inside the rear storage box 8 is in contact with the outer side of the first test line 9, and the outer side of the positioning roller 12 inside the front storage box 7 is in contact with the outer side of the second test line 10. The positioning rollers 12 support and limit the first test line 9 and the second test line 10.

[0022] The watch body 1 is fixedly connected to a mounting bracket 20 on one side. A mounting box 21 is fixedly connected to one end of the mounting bracket 20. A fixing member 5 is fixedly connected to one side of the mounting box 21. A gear ring 3 is fixedly connected to the surface of the knob 2 and to the outside of the pull bar 34. A drive column 23 is rotatably connected to one side of the inner cavity of the mounting box 21 via a bearing. A gear 22 that mates with the gear ring 3 is fixedly sleeved on the outside of the drive column 23. A second motor 24 is fixedly connected to one side of the mounting box 21. The output end of the second motor 24 extends into the interior of the mounting box 21 and is fixedly connected to a drive shaft 25. A clutch sleeve 26 is fixedly sleeved on the outside of one end of the drive shaft 25. The clutch sleeve 26 is located on the outside of one end of the drive column 23. Through the clutch sleeve 26, the drive shaft 25, and the drive column 23, the gear 22 can be driven to rotate the gear ring 3 and the knob 2.

[0023] The drive column 23 has several storage cavities 28 inside one end. Each storage cavity 28 has a support spring 29 fixedly connected to one side. Each support spring 29 has a push block 32 fixedly connected to one end. Each push block 32 has a clutch column 31 fixedly connected to one end. Each clutch column 31 is inserted into a corresponding clutch groove 37 inside the clutch sleeve 26. When the knob 2 needs to be manually adjusted, the electromagnet 30 is activated, which generates a repulsive magnetic field between the electromagnet 30 and the magnet block 38. This causes the push block 32 to overcome the supporting force of the support spring 29, and the push block 32 to drive the clutch column 31 to move into the storage cavity 28. This causes one end of the clutch column 31 to move out of the clutch groove 37, and the drive column 23 to disengage from the clutch sleeve 26. At this time, the pull bar 34, the rotating column 35 and the knob 2 can be manually rotated by squeezing the column 6, thereby adjusting the knob 2.

[0024] Among them, a magnet block 38 is fixedly connected to one end of the push block 32 and to both sides of the clutch column 31, and an electromagnet 30 is fixedly connected to one side of the inner cavity of the receiving cavity 28 and to both sides of the clutch column 31, and the magnetic field between the electromagnet 30 and the magnet block 38 is a repulsive magnetic field.

[0025] An angle sensor 36 is fixedly connected to one side of the fixing component 5, and a rotating column 35 is fixedly connected to the middle of the surface of the knob 2. The detection end of the angle sensor 36 is matched with one end of the rotating column 35. An electronic rotary joint 27 is installed on one side of the fixing frame 20. The circuit for energizing the electromagnet 30 is electrically connected to the electronic rotary joint 27, and is connected to the power supply circuit inside the meter body 1 through the electronic rotary joint 27.

[0026] Example 2 like Figures 1 to 9As shown, in step seven: the calibration program can be started via the controller mounted on the surface of the meter body 1. At this time, the output end of the first motor 14 drives the threaded rod 15 to rotate, causing the threaded rod 15 to drive the push plate 16 to move the drive block 17 upward, causing the drive block 17 to move the guide roller 13 upward, so that the curled second test line 10 and the first test line 9 are released. At this time, the two plugs 19 can be pulled, so that the first test line 9 inside the storage box 8 and the second test line 10 inside the front storage box 7 are pulled out after the plugs 19 are pulled. One end of the plug 19 is then passed through the clamp head detection part of the meter body 1. Then, connect it to the positive output terminal Ia of the tester, and connect one end of the other plug 19 to the common return terminal In of the tester to form a short-circuit loop with approximately zero resistance. At the same time, the electromagnet 30 is turned off, so that the repulsive magnetic field between the electromagnet 30 and the magnet block 38 disappears, causing the support spring 29 to push the push block 32 and one end of the clutch column 31 into the clutch groove 37. The angle sensor 36 detects the current angle of the rotating column 35 to obtain the switch position corresponding to the knob 2 at this time. Then, the output end of the second motor 24 drives the transmission shaft 25 and the clutch sleeve. Rotation 26 causes the clutch sleeve 26 to drive the drive column 23 to rotate via the rotating column 35, clutch column 31, and push block 32. At this time, the drive column 23 drives the gear 22 to rotate, which in turn drives the gear ring 3 to rotate. The gear ring 3 then drives the knob 2, the pinch column 6, the pull bar 34, and the rotating column 35 to rotate. The rotation angle of the rotating column 35 is detected by the angle sensor 36, and the knob 2 is adjusted to the specified range. The range of the meter body 1 is set to a range greater than the expected test current. On the operating interface of the tester, manual control mode or DC / power frequency fixed-point output mode is used. Set a small safety test current value, briefly start the output of the tester, and observe the display of meter 1 during the output period. If meter 1 displays a stable current reading that is on the same order of magnitude as the set value, it is determined that the power amplification hardware of the current output channel is in normal basic function and has output capability, and subsequent standardized interface fine verification can be performed. If meter 1 has no display, the reading is extremely small and close to zero, or the tester immediately triggers overcurrent protection and alarms, it is determined that there may be a hardware fault in the current output channel. The subsequent verification process should be stopped and the tester should be repaired. When not in use, pull one end of plug 19 out of the positive output terminal Ia of the tester, then move one end of plug 19 out of the inside of the clamp detection part of the body 1, and then pull one end of the other plug 19 out of the common return terminal In of the tester. At this time, the output terminal of the first motor 14 drives the threaded rod 15 to reset and rotate, so that the threaded rod 15 drives the push plate 16 to drive the drive block 17 to move down, so that the drive block 17 drives the guide roller 13 to move down, so that the released second test line 10 and the first test line 9 are re-wound inside the front storage box 7 and the rear storage box 8 respectively. Not only can the knob 2 be adjusted to the position required for a specific current output channel hardware verification process, but it can also be set to the position required for other verification or testing processes. By adjusting the knob 2 to the specified position, verification and testing can be performed through the meter body 1.

[0027] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of shaft-shaped parts are connected by bearings, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this invention is mainly used to protect mechanical devices, this invention will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned herein, and the external controller is a conventional known device.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent verification method based on the control interface of a standardized relay protection tester, characterized in that: Includes the following steps: Step 1: Construct a standardized set of control instructions and data formats that are independent of specific test instrument models; Step 2: Develop a dedicated data format adapter for each tester model. This adapter is responsible for translating the standardized instructions sent from the upper layer into specific instructions of the native communication protocol of the tester model and sending them to the tester. At the same time, it parses and encapsulates the response data returned by the tester into a standardized data format and returns it. Firstly, create a device description file for each tester model, including device connection parameters, input / output channel mapping, and a mapping table from standardized operations to native device commands; Secondly, through a dynamically loadable driver manager, based on the tester model selected by the user, the corresponding driver module and device description file are extracted from the driver library, dynamically loaded into the data format adapter, and the instantiation and initialization of the driver are completed. Third, through the instruction translation model, based on the mapping table, the received standardized control instructions and parameters are converted into specific instruction frames under the target device's native communication protocol and sent. The response data frames returned by the device are parsed and converted into a unified standardized data format. Step 3: Construct a standard test library for relay protection devices. Users select the model of the protection device to be tested and the items to be verified. Based on the built-in test templates and the protection setting sheet and device manual, intelligent test sequences can be automatically generated. Step 4: Through a standardized interface, drive the tester to automatically execute the sequence generated in Step 3, read the output status of the tester and the feedback signals of the protection device in real time, and form a complete data chain for the entire test process; Step 5: Automatically analyze the real-time monitoring data based on the preset expected behavior and judgment logic in the test sequence; Step Six: After all test items have been completed, summarize the process data and analysis results of all test steps and generate a verification report; Step Seven: To calibrate the relay protection tester on-site or at the initial stage of maintenance, a calibration procedure is proposed: The operator confirms that the tester to be checked is in a power-off or output-disabled state. Select the current output channel of the phase to be checked. Using an insulated wire, directly short-circuit the positive output terminal (Ia) of the selected current channel to the common return terminal (In), thus constructing a near-zero resistance short-circuit loop outside the tester. Simultaneously, reliably clamp the jaws of a clamp meter at any position on the short-circuit wire. The clamp meter's range should be set to a level greater than the expected test current. Manual control should be used on the tester's operating interface. In either DC / power frequency fixed-point output mode, set a small safe test current value and briefly start the tester's output. During the output period, observe the display of the clamp ammeter. If the clamp ammeter displays a stable current reading that matches the set value, the power amplification hardware of the current output channel is considered to be functioning normally and has output capability, allowing for subsequent standardized interface fine-tuning. If the clamp ammeter shows no reading, the reading is extremely small (close to zero), or the tester immediately triggers overcurrent protection and alarms, the current output channel may have a hardware fault. The subsequent verification process should be stopped, and the tester should be repaired.

2. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 1, characterized in that: The clamp meter used in step seven includes a meter body (1), a knob (2) is installed on the meter body (1), and several markings (4) are installed on the surface of the meter body (1) and outside the knob (2), and each marking (4) represents a current range. A pull bar (34) is fixedly connected to the surface of the knob (2), and a pinch post (6) is fixedly connected to one end of the pull bar (34).

3. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 2, characterized in that: The back of the watch body (1) is fixedly connected to a front storage box (7), and a rear storage box (8) is fixedly connected to the rear of the front storage box (7). A second test line (10) is coiled inside the front storage box (7), and a first test line (9) is coiled inside the rear storage box (8). Both ends of the second test line (10) and the first test line (9) extend to the top of the front storage box (7) and the rear storage box (8), respectively. One end of the second test line (10) and the first test line (9) are fixedly connected, and the other end of the second test line (10) and the first test line (9) are fixedly installed with a plug (19).

4. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 3, characterized in that: A drive box (11) is fixedly connected inside the front storage box (7). A first motor (14) is fixedly connected to the top of the inner cavity of the drive box (11). A threaded rod (15) is rotatably connected to the bottom of the inner cavity of the drive box (11) through a bearing. The output end of the first motor (14) is connected to the top end of the threaded rod (15) through a coupling. A push plate (16) is threadedly connected to the outer side of the threaded rod (15). Two drive blocks (17) are fixedly connected to the front and rear surfaces of the push plate (16). Two guide grooves (18) are opened on the front and rear surfaces of the drive box (11). One end of each guide groove (18) extends into the interior of the front storage box (7) and the rear storage box (8), respectively. One end of each drive block (17) is inserted into the guide groove (18). One end of each drive block (17) is equipped with a guide roller (13). The outer side of the guide roller (13) inside the rear storage box (8) is in contact with the surface of the first test line (9), and the outer side of the guide roller (13) inside the front storage box (7) is in contact with the surface of the second test line (10). The inner and outer sides of the front storage box (7) are fixedly connected with positioning rollers (12). The outer side of the positioning roller (12) inside the rear storage box (8) is in contact with the outer side of the first test line (9), and the outer side of the positioning roller (12) inside the front storage box (7) is in contact with the outer side of the second test line (10).

5. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 4, characterized in that: A fixing frame (20) is fixedly connected to one side of the watch body (1), a fixing box (21) is fixedly connected to one end of the fixing frame (20), a fixing member (5) is fixedly connected to one side of the fixing box (21), a toothed ring (3) is fixedly connected to the surface of the knob (2) and outside the pull bar (34), and a drive column (23) is rotatably connected to one side of the inner cavity of the fixing box (21) through a bearing.

6. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 5, characterized in that: The drive column (23) is fixedly sleeved with a gear (22) that cooperates with the gear ring (3). A second motor (24) is fixedly connected to one side of the fixed box (21). The output end of the second motor (24) extends into the fixed box (21) and is fixedly connected to a transmission shaft (25). A clutch sleeve (26) is fixedly sleeved on the outer side of one end of the transmission shaft (25). The clutch sleeve (26) is located on the outer side of one end of the drive column (23).

7. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 6, characterized in that: The drive column (23) has several storage cavities (28) inside one end. Each storage cavity (28) has a support spring (29) fixedly connected to one side of its inner cavity. Each support spring (29) has a push block (32) fixedly connected to one end of its inner cavity.

8. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 7, characterized in that: One end of each push block (32) is fixedly connected to a clutch pin (31), and one end of each clutch pin (31) is inserted into the corresponding clutch groove (37) opened inside the clutch sleeve (26).

9. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 8, characterized in that: Magnet blocks (38) are fixedly connected to one end of the push block (32) and to both sides of the clutch column (31), and electromagnets (30) are fixedly connected to one side of the inner cavity of the receiving cavity (28) and to both sides of the clutch column (31).

10. The equipment used in the intelligent verification method based on the standardized relay protection tester control interface according to claim 9, characterized in that: An angle sensor (36) is fixedly connected to one side of the fixing member (5), a rotating column (35) is fixedly connected to the middle of the surface of the knob (2), the detection end of the angle sensor (36) is matched with one end of the rotating column (35), and an electronic rotary joint (27) is installed on one side of the fixing frame (20).

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