Electric energy metering full-service practical training examination device
Through the multi-layer carrier board structure and adjustable assessment components, the wiring failure of the power meter is simulated, which solves the problem that existing equipment cannot effectively simulate complex faults, and improves the effectiveness of power metering training and the professional ability of students.
Patent Information
- Application Number
- CN202411274184.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2024-12-24
AI Technical Summary
The existing electrical energy metering training and assessment equipment has a single function and cannot effectively simulate complex electrical energy meter wiring failures, resulting in students lacking practical experience and coping skills, which affects learning results.
A full-service training and assessment device for electric energy metering is designed, using a multi-layer carrier board structure and adjustable assessment components. The linkage mechanism between the backplane and the carrier board can be used to quickly turn out the power meter and set the fault, simulating multiple wiring faults. , enhance the practical experience and achieve diversified assessment scenarios through modular basic assessment cards.
It improves the training effect in the field of electricity measurement and the professional ability of students, provides a real operating experience and a targeted training environment, and enhances students' fault identification and resolution skills.
Smart Images
Figure CN119181290A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electric energy metering practical training and assessment, and in particular to an electric energy metering full-service practical training and assessment device. Background Art
[0002] The full-business practical training and assessment of electric energy metering refers to a training method that comprehensively evaluates trainees' theoretical knowledge and practical skills in the field of electric energy metering through simulation and actual operation. It usually involves multiple links such as installation, commissioning, fault identification and repair of electric energy meters. It aims to help trainees master the working principle and usage of electric energy meters, and cultivate their ability to deal with electric energy metering-related issues in actual work.
[0003] In the field of training and assessment of electric energy metering, the existing technology mainly relies on traditional teaching methods, such as classroom lectures, book learning and limited experimental operations. Although basic knowledge can be imparted, it is difficult to provide real operation experience. In addition, the existing training equipment has a single function and cannot simulate a variety of electric energy meter wiring faults. It can often only perform simple meter readings and basic troubleshooting, resulting in trainees lacking sufficient practical experience and coping capabilities when facing complex actual operations; the existing training equipment cannot effectively simulate the complex faults that may be encountered in actual work, and can often only test a specific function. It lacks an effective assessment and training mechanism, which affects the learning effect of trainees and has certain defects. Therefore, in response to the existing problems in the field of electric energy metering training and assessment, it is an urgent need to develop an electric energy metering full-business training and assessment device to improve the training quality and the professional ability of trainees. Summary of the invention
[0004] In view of the above-mentioned defects and problems, the purpose of the present invention is to provide a full-service practical training and assessment device for electric energy metering to meet the needs of teaching and training on electric energy meters. Through the multi-layer carrier board structure and adjustable assessment components, different electric energy meter wiring faults can be flexibly simulated, so that trainees can conduct targeted training in a real operating environment. Through the linkage mechanism between the back panel and the carrier board, the electric energy meter can be quickly flipped out and fault set to enhance the practical experience. The design of modular basic assessment cards makes diversified assessment scenarios possible, helping trainees to effectively master fault identification and solving skills, thereby improving the training effect and professional ability of trainees in the field of electric energy metering.
[0005] The solution adopted by the present invention to solve its technical problems is: an electric energy metering full-service practical training and assessment device, including a test bench, a test tool box for testing is provided on the test bench, and an assessment component, the assessment component includes a frame arranged in the test bench, a multi-layer carrier is arranged from top to bottom in the frame, a flip shaft is respectively provided in the exact center of both ends of the carrier, the carrier is rotatably sleeved in the frame through the flip shaft, and a rear shaft is provided on the rear side of the carrier, a back plate vertically arranged on the rear side of the carrier is hinged on the carrier through the rear shaft, and the back plate and the frame are connected by an elastic member; An electric energy meter is arranged on the upper side, and a front conductive column group corresponding to the electric energy meter is arranged on the lower side of the carrier plate, and the front conductive column group is connected to each wiring terminal of the electric energy meter; an adjustable assessment component corresponding to the front conductive column group is arranged on the back plate, and when the back plate moves upward, the carrier plate will rotate synchronously to flip the electric energy meter outward, and at the same time, the back plate will be close to and fit with the lower side of the carrier plate, so that the rear conductive column group in the adjustable assessment component is connected with the front conductive column group, and the electric energy meter is started. By adjusting the adjustable assessment component, the operating state of the electric energy meter can be changed, and the fault setting of the electric energy meter wiring is realized.
[0006] Furthermore, the adjustable assessment component includes a card slot arranged on the back plate, the front end of the card slot is open, and a baffle is arranged inside the card slot, and the inside of the card slot is connected to the through hole of the back plate, and also includes a basic assessment card for assessment. The rear conductive column group is arranged on the front side of the basic assessment card, and the basic assessment card can be inserted in the card slot. The connection relationship of each conductive column in the rear conductive column group is changed by pre-adjustment. When the rear conductive column group is connected to the front conductive column group and other positions, the electrical connection state of the electric energy meter can be changed, and it has a fault setting function for the wiring of the electric energy meter.
[0007] Furthermore, a socket corresponding to each conductive post in the rear conductive post group is opened on the rear side of the basic assessment card, and different conductive posts can be electrically connected through plug wires to perform different fault settings, or each conductive post in the rear conductive post group on the basic assessment card is pre-embedded with an incorrect electrical connection, and a plurality of different basic assessment cards are set, thereby realizing the assessment of different electricity meter wiring faults.
[0008] Furthermore, the elastic member is a tension spring, one end of which is fixedly connected to the outer side wall of the frame and is located below the flip shaft, and the other end of the tension spring is connected to the end extending from the rear axle.
[0009] Furthermore, when the carrier is in a horizontal state, the flip axis and the rear axis are in a horizontal state, and the tension spring pulls the back plate below the flip axis. The tension of the tension spring can be used to pull the back plate downward so that the bottom of the back plate touches the horizontal plate of the inspection table and is constrained and stabilized by the tension spring. When the back plate is pushed upward, the rear axis rotates around the flip axis, the carrier becomes vertical, and the back plate and the lower side of the carrier are close to each other. At the same time, the back plate synchronously drives the tension spring when moving, so that the tension spring is located above the flip axis, and assists in pulling the back plate and the lower side of the carrier close to each other, so that the rear conductive column group and the front conductive column group are stably docked.
[0010] Furthermore, the rear axle is installed on the lower outer side of the carrier plate through an axle seat.
[0011] Furthermore, a plurality of electric energy meters may be arranged on the upper side of the carrier plate, and a plurality of front conductive column groups are arranged on the lower side of the carrier plate, and each front conductive column group corresponds to each electric energy meter.
[0012] Furthermore, the basic assessment card is also provided with an auxiliary adjustment component.
[0013] Furthermore, the basic assessment card is also provided with a rotation adjustment component.
[0014] The beneficial effects of the present invention are as follows: the present invention has a unique structure and an ingenious design. The carrier plate is of a multi-layer design, which can be rotated horizontally in the frame through a flip axis, so that carrier plates at different levels can be selected and operated according to needs, and a linkage mechanism between the back plate and the carrier plate is utilized. The back plate is hinged on the carrier plate through a rear axis. When the back plate moves upward, the carrier plate will flip synchronously, so that the electric energy meter on the upper side of the carrier plate will flip out. The linkage design makes the operation more intuitive and smooth, reducing the complexity of user operation; the adjustable assessment component is arranged on the back plate, including an open card slot and a basic assessment card. The rear conductive column group on the basic assessment card corresponds to the front conductive column group. The basic assessment card can be inserted into the card slot, allowing the connection relationship of the conductive columns in the rear conductive column group to be changed through simple physical operations. Thereby simulating different fault states of the electric energy meter and enhancing the pertinence of the practical training. When the back plate moves upward, the rear conductive column group can be connected with the front conductive column group. The tension spring can pull the back plate downward in the horizontal state of the carrier plate to constrain and stabilize the back plate, and when the back plate moves upward, it can assist the back plate and the lower side of the carrier plate to fit close to each other, ensuring the stable connection between the rear conductive column group and the front conductive column group. The design of multiple different basic assessment cards enables the device to cope with various electric energy meter wiring faults and enhance the practical ability of trainees through actual operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is one of the overall structural schematic diagrams of the present invention.
[0016] Figure 2 This is the second schematic diagram of the overall structure of the present invention.
[0017] Figure 3 This is one of the structural diagrams of the assessment component.
[0018] Figure 4 This is the second structural diagram of the assessment component.
[0019] Figure 5 One of the side views of the assessment component.
[0020] Figure 6 for Figure 5 Internal cross-sectional view of .
[0021] Figure 7 This is the third structural diagram of the assessment component.
[0022] Figure 8 Side view of the test component (part 2) Fig. 9 for Figure 8 Internal cross-sectional view Fig.10 Schematic diagram of the structure of the carrier board.
[0023] Fig.11 This is one of the structural diagrams of the basic assessment card.
[0024] Fig.12 This is the second structural diagram of the basic assessment card.
[0025] Fig.13 This is one of the structural diagrams of the backplane.
[0026] Fig.14 This is the second structural diagram of the backplane.
[0027] Fig.15 It is a structural schematic diagram of the auxiliary adjustment component.
[0028] Fig.16 It is a structural schematic diagram of the rotation adjustment component.
[0029] In the figure: 1-inspection table, 2-inspection tool box, 3-cross plate, 4-frame, 5-carrier plate, 6-flip axis, 7-rear axis, 701-axle seat, 8-back plate, 9-electricity meter, 10-tension spring, 11-front conductive column group, 12-card slot, 13-through hole, 14-basic assessment card, 15-rear conductive column group, 16-jack, 17-stop table, 18-guide rod, 19-auxiliary assessment card, 20-isolation card, 21-center axis. DETAILED DESCRIPTION
[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0031] Embodiment 1: The existing training and assessment of electric energy metering mainly rely on traditional teaching methods, such as classroom lectures, book learning and limited experimental operations. Although basic knowledge can be imparted, it is difficult to provide real operation experience. In addition, the existing training equipment has a single function and cannot simulate various electric energy meter wiring faults. It can often only perform simple meter readings and basic troubleshooting, resulting in trainees lacking sufficient practical experience and coping capabilities when facing complex actual operations; the existing training equipment cannot effectively simulate the complex faults that may be encountered in actual work, and can often only test a specific function. It lacks an effective assessment and training mechanism, which affects the learning effect of trainees.
[0032] In view of the above problems, this embodiment provides a full-service training and assessment device for electric energy metering, which mainly includes a test bench 1 and an assessment component. The overall structure is designed to simulate and assess the wiring fault of the electric energy meter 9 through the flip mechanism of the adjustable assessment component and the carrier board 5. Figure 1-4 As shown, a frame 4 is fixedly installed in the inspection table 1, and multiple layers of carrier plates 5 are horizontally arranged on the frame 4 from top to bottom, with appropriate intervals between the layers to facilitate subsequent operations. Flip shafts 6 are fixedly installed at the exact centers of the two ends of the carrier plate 5, and the carrier plate 5 is rotatably mounted in the frame 4 through the flip shafts 6, and the carrier plate 5 can rotate in the frame 4 through the flip shafts 6, and a rear shaft 7 is provided on the carrier plate 5, and the rear shaft 7 is installed on the lower outer side of the carrier plate 5 through an axle seat 701, and the end of the rear shaft 7 extends from the axle seat 701, and a back plate 8 is vertically provided on the rear side of the carrier plate 5, and the back plate 8 is hinged to each carrier plate 5 through the rear shaft 7. When the back plate 8 moves upward, the flipping of the carrier plate 5 will be synchronously controlled, so that the back plate 8 and the carrier plate 5 have a linkage mechanism, and a horizontal plate 3 is fixed on the rear side of the inspection table 1 to constrain and stabilize the back plate 8.
[0033] like Fig.10 As shown, an electric energy meter 9 is installed on the upper side of the carrier board 5, and a front conductive column group 11 corresponding to the electric energy meter 9 is installed on the lower side of the carrier board 5, and each conductive column in the front conductive column group 11 is connected to each terminal of the electric energy meter 9. Multiple electric energy meters 9 can be arranged on the upper side of the carrier board 5, and multiple front conductive column groups 11 are provided on the lower side of the carrier board 5, and each front conductive column group 11 corresponds to each electric energy meter 9.
[0034] The back plate 8 is connected to the frame 4 via an elastic member, which is a tension spring 10 . One end of the tension spring 10 is fixedly connected to the outer wall of the frame 4 and is located below the flip shaft 6 , and the other end is connected to the end extending from the rear shaft 7 .
[0035] An adjustable test assembly corresponding to the front conductive column group 11 is arranged on the back plate 8, such as Figure 11-14As shown, the front end of the card slot 12 is open, and a baffle 17 is provided inside the card slot 12. The inside of the card slot 12 is connected to the through hole 13 of the back plate 8, and a basic assessment card 14 for assessment is provided. The rear conductive column group 15 is arranged on the front side of the basic assessment card 14, and the basic assessment card 14 can be movably inserted in the card slot 12, and a jack 16 corresponding to each conductive column in the rear conductive column group 15 is provided on the rear side of the basic assessment card 14. Different conductive columns can be electrically connected through plug wires to perform different fault settings. The connection relationship of each conductive column in the rear conductive column group 15 is changed by pre-adjustment. When the rear conductive column group 15 is connected to the front conductive column group 11 and other positions, the electrical connection state of the electric energy meter 9 can be changed, and it has the fault setting function of the wiring of the electric energy meter 9.
[0036] When the back plate 8 moves upward, the carrier plate 5 will rotate synchronously to flip the electric energy meter 9 outward. At the same time, the back plate 8 will fit closely with the lower side of the carrier plate 5, so that the rear conductive column group 15 in the adjustable test component will be docked with the front conductive column group 11, and the electric energy meter 9 will be started. By adjusting the adjustable test component, the operating state of the electric energy meter 9 can be changed, and the fault setting of the wiring of the electric energy meter 9 can be realized.
[0037] like Figure 3-6 As shown, the carrier plate 5 is in the initial horizontal state, the flip axis 6 and the rear axis 7 are in a horizontal state, and the tension spring 10 pulls the back plate 8 below the flip axis 6. The tension of the tension spring 10 can pull the back plate 8 downward, so that the bottom of the back plate 8 touches the horizontal plate 3 of the inspection table 1 and is constrained and stabilized by the tension spring 10; Figure 7-9 As shown, when the back plate 8 is pushed upward, the rear axis 7 rotates around the flip axis 6, the carrier plate 5 becomes vertical, and the back plate 8 is brought into close contact with the lower side of the carrier plate 5. At the same time, the back plate 8 drives the tension spring 10 while moving, so that the tension spring 10 is located above the flip axis 6, and assists in pulling the back plate 8 and the lower side of the carrier plate 5 into close contact, so that the rear conductive column group 15 and the front conductive column group 11 are stably docked.
[0038] During the practical training assessment, the assessor adjusts the basic assessment card 14, changes the connection relationship between the conductive posts in the conductive post group 15, simulates different wiring faults of the electric energy meter 9, and electrically connects different conductive posts through plug wires, so that the basic assessment card 14 presets an incorrect connection, making it impossible for the electric energy meter 9 to read correctly, providing a real troubleshooting scenario for the trainees, and then inserts the adjusted basic assessment card 14 into the card slot 12 of the back plate 8, ensuring that the stopper 17 in the card slot 12 can firmly support the basic assessment card 14; The trainee pushes the back plate 8 upwards, and the back plate 8 drives the carrier plate 5 to flip over, and the electric energy meter 9 flips outward. During this process, the back plate 8 and the lower side of the carrier plate 5 gradually get close to each other and fit together, and the end of the front conductive column group 11 can be connected to the end of the rear conductive column group 15, so that the rear conductive column group 15 and the front conductive column group 11 are stably connected, and the electric energy meter 9 is started. At this time, the electric energy meter 9 starts to work, and the trainee judges whether the fault setting is effective by observing the reading of the electric energy meter 9. According to the reading and fault phenomenon of the electric energy meter 9, the trainee uses the detection toolbox 2 to analyze and troubleshoot the fault, identify the fault type and propose solutions. During this process, the teacher can observe and guide the trainee's operation, provide feedback in real time, and help the trainee correct the operation error and understand the cause of the fault. After the training, the teacher organizes the trainees to summarize and discuss the problems encountered in the operation and solutions, so as to strengthen the trainees' understanding of electric energy metering knowledge and mastery of skills.
[0039] Preferably, the assessment card is set as a single card, and each assessment card can only assess the wiring fault of the electric energy meter 9 of one difficulty. It may not be possible to set the wiring fault of the electric energy meter 9 of different difficulties, so an auxiliary adjustment component is also provided, such as Fig.15 As shown, the assessment card is set as a composite assessment card, a guide rod 18 is installed on the basic assessment card 14, and the basic assessment card 14 is no longer inserted into the card slot 12, the basic assessment card 14 is fixedly installed in the card slot 12, and the guide rod 18 extends out of the card slot 12, the composite assessment card includes an auxiliary assessment card 19 and an isolation card 20, the structure of the auxiliary assessment card 19 and the isolation card 20 is the same as that of the basic assessment card 14, the auxiliary assessment card 19 can be mounted on the guide rod 18 and combined with the basic assessment card 14, and the isolation card 20 can also be mounted on the guide rod 18 and combined with the basic assessment card 14 and the auxiliary assessment card 19. The examiner can set different auxiliary assessment cards 19 so that the connection methods of the conductive posts on the different auxiliary assessment cards 19 are different. When the auxiliary assessment card 19 is combined with the basic assessment card 14, the conductive posts on the auxiliary assessment card 19 can be correspondingly connected with the conductive posts on the basic assessment card 14, and when the different auxiliary assessment cards 19 are combined through the guide rod 18, each auxiliary assessment card 19 has a transmission relationship; according to the difficulty of the test, the number of auxiliary assessment cards 19 can be flexibly changed to set the wiring fault of the electric energy meter 9 with different difficulties. The more the number of auxiliary assessment cards 19, the greater the difficulty of the assessment; The isolation card 20 can isolate the auxiliary assessment card 19 or the basic assessment card 14. Some of the conductive columns on the isolation card 20 are insulators. The insulator conductive columns on the isolation card 20 can isolate and shield the conductive columns of the auxiliary assessment card 19 or the basic assessment card 14 to avoid the situation where all the conductive columns are connected and connected after the adjacent auxiliary assessment cards 19 are connected. The isolation card 20 can increase the degree of free combination of the auxiliary assessment cards 19.
[0040] Preferably, the auxiliary assessment card 19 and the isolation card 20 need to be combined with the basic assessment card 14 when in use, which may be inconvenient to use, so a rotation adjustment component is also provided, such as Fig.16 As shown, the basic assessment card 14, the auxiliary assessment card 19 and the isolation card 20 are all provided with a disc-shaped structure, and the front conductive column group 11 is radially distributed on the lower side of the carrier plate 5, and each conductive column in the rear conductive column group 15 of the basic assessment card 14 is radially distributed, and the rear conductive column group 15 corresponds to the front conductive column group 11, and the conductive columns on the auxiliary assessment card 19 and the isolation card 20 correspond to the conductive columns of the basic assessment card 14, and a central axis 21 is axially installed on the basic assessment card 14, and the auxiliary assessment card 19 and the isolation card 20 can be compositely mounted with the basic assessment card 14 through the central axis 21, and a compression spring (not shown in the figure) is installed on the outer end of the central axis 21 to press the auxiliary assessment card 19 and the isolation card 20 that are compositely mounted on the central axis 21; The connection method of the conductive columns on each auxiliary isolation card 20 can be pre-adjusted and then mounted on the central axis 21. Marks are provided on the outer circumference of the auxiliary isolation card 20 and the isolation card 20, and the marks correspond to the conductive columns. The auxiliary isolation card 20 and the isolation card 20 can rotate on the central axis 21. Through rotation adjustment, the wiring fault settings of the electric energy meter 9 with different difficulties can be performed.
[0041] Embodiment 2, a full-service practical training and assessment device for electric energy metering in this embodiment is described centering on the differences from Embodiment 1.
[0042] In this embodiment, each conductive post in the rear conductive post group 15 on the basic assessment card 14 has a pre-embedded incorrect electrical connection, which is directly set as a corresponding wiring fault. The assessor does not need to adjust the connection of the conductive post, and multiple different basic assessment cards 14 are set. The assessor can directly insert the corresponding basic assessment card 14 into the card slot 12 to achieve different wiring fault assessments of the electric energy meter 9.
[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A full-service training and assessment device for electric energy metering, comprising a test bench, on which a test tool box for testing is provided, characterized in that: It also includes an assessment component, which includes a frame arranged in the inspection table, wherein multiple layers of carrier plates are arranged from top to bottom in the frame, and flip axes are respectively arranged at the exact centers of both ends of the carrier plates, and the carrier plates are rotated and sleeved in the frame through the flip axes, and a rear axis is arranged on the rear side of the carrier plates, and a back plate vertically arranged on the rear side of the carrier plates is hinged on the carrier plates through the rear axis, and the back plate and the frame are connected by an elastic member; an electric energy meter is arranged on the upper side of the carrier plates, and a front conductive column group corresponding to the electric energy meter is arranged on the lower side of the carrier plates, and the front conductive column group is connected to each wiring terminal of the electric energy meter; an adjustable assessment component corresponding to the front conductive column group is arranged on the back plate, and when the back plate moves upward, the carrier plate will rotate synchronously to flip the electric energy meter outward, and at the same time, the back plate will be close to the lower side of the carrier plate, so that the rear conductive column group in the adjustable assessment component is connected with the front conductive column group, and the electric energy meter is started, and the operation state of the electric energy meter can be changed by adjusting the adjustable assessment component, so as to realize the fault setting of the electric energy meter wiring.
2. According to claim 1, a full-service training and assessment device for electric energy metering is characterized in that: The adjustable assessment component includes a card slot arranged on the back plate, the front end of the card slot is open, and a baffle is arranged inside the card slot, and the inside of the card slot is connected to the through hole of the back plate, and also includes a basic assessment card for assessment. The rear conductive column group is arranged on the front side of the basic assessment card, and the basic assessment card can be inserted into the card slot. The connection relationship of each conductive column in the rear conductive column group is changed by pre-adjustment. When the rear conductive column group is connected to the front conductive column group and other positions, the electrical connection state of the electric energy meter can be changed, and it has a fault setting function for the wiring of the electric energy meter.
3. The electric energy metering full-service training and assessment device according to claim 2 is characterized in that: On the rear side of the basic assessment card, there are sockets corresponding to the various conductive posts in the rear conductive post group. Different conductive posts can be electrically connected through plug wires to perform different fault settings, or the various conductive posts in the rear conductive post group on the basic assessment card are pre-embedded with incorrect electrical connections, and multiple different basic assessment cards are set to achieve the assessment of different electricity meter wiring faults.
4. The electric energy metering full-service training and assessment device according to claim 1 is characterized in that: The elastic member is a tension spring, one end of which is fixedly connected to the outer side wall of the frame and is located below the flip shaft, and the other end of the tension spring is connected to the end extending from the rear shaft.
5. The electric energy metering full-service training and assessment device according to claim 4 is characterized in that: When the carrier plate is in a horizontal state, the flip axis and the rear axis are in a horizontal state, and the tension spring pulls the back plate below the flip axis. The tension of the tension spring can be used to pull the back plate downward so that the bottom of the back plate touches the horizontal plate of the inspection table and is constrained and stabilized by the tension spring. When the back plate is pushed upward, the rear axis rotates around the flip axis, the carrier plate becomes vertical, and the back plate and the lower side of the carrier plate are close to each other. At the same time, the back plate synchronously drives the tension spring when moving, so that the tension spring is located above the flip axis, and assists in pulling the back plate and the lower side of the carrier plate close to each other, so that the rear conductive column group and the front conductive column group are stably docked.
6. The electric energy metering full-service training and assessment device according to claim 1 is characterized in that: The rear axle is installed on the lower outer side of the carrier plate through an axle seat.
7. The electric energy metering full-service training and assessment device according to claim 1 is characterized in that: A plurality of electric energy meters can be arranged on the upper side of the carrier plate, and a plurality of front conductive column groups are arranged on the lower side of the carrier plate, and each front conductive column group corresponds to each electric energy meter.
8. The electric energy metering full-service training and assessment device according to claim 1 is characterized in that: The basic assessment card is also provided with an auxiliary adjustment component.
9. The electric energy metering full-service training and assessment device according to claim 1 is characterized in that: The basic assessment card is also provided with a rotation adjustment component.