Training device for regulating electrical maintenance behavior

Abstract

The utility model provides a kind of training device for standardizing electrical maintenance behavior belongs to electrical maintenance technical field.Device includes: setting in the maintenance operation panel of box upper surface;Maintenance operation panel is provided with fan wiring training module, current transformer maintenance training module and circuit misconnection troubleshooting training module;Fan wiring training module is used to generate first electric signal when fan wiring operation is carried out;Current transformer maintenance training module is used to generate second electric signal when the relay spare parts of installation selection and the wire connection operation of current transformer are carried out;Circuit misconnection troubleshooting training module is used to generate third electric signal when wire connection operation is carried out;Output component is used to be electrically connected with fan wiring training module, current transformer maintenance training module and circuit misconnection troubleshooting training module, and receives first electric signal, second electric signal and third electric signal, and outputs prompt information.The utility model can standardize electrical maintenance behavior of maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of electrical maintenance technology, and in particular to a training device for standardizing electrical maintenance procedures. Background Technology

[0002] In the nuclear power industry, electrical maintenance personnel need to receive various specialized electrical maintenance skills training, such as motor fault repair and regular inspection of electrical cabinets. However, in actual maintenance processes, there is considerable uncertainty as to whether maintenance personnel truly master these skills and whether they can correctly perform maintenance actions according to maintenance specifications and learned knowledge. Human error leading to non-standard maintenance actions frequently occurs, hindering the smooth progress of equipment maintenance. For example, failing to check maintenance results upon completion; blindly following maintenance instructions without observing and analyzing the environment of the faulty equipment; failing to independently verify spare parts codes and performance when retrieving spare parts for faulty equipment; and failing to check and analyze whether the on-site fault conditions conform to maintenance procedures.

[0003] Current electrical maintenance training courses and equipment only focus on training electrical maintenance skills. This often leads to human error as maintenance personnel fail to perform electrical maintenance procedures correctly, resulting in low accuracy. Therefore, providing a training device to standardize the electrical maintenance procedures and improve their accuracy has become an urgent problem to solve. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a training device for standardizing electrical inspection procedures, which can standardize the electrical inspection procedures of electrical maintenance personnel and improve the accuracy of electrical inspection procedures.

[0005] To achieve the above objectives, a first aspect of this utility model provides a training device for standardizing electrical inspection procedures, the training device comprising:

[0006] The enclosure has a maintenance and operation panel on its upper surface.

[0007] The maintenance operation panel is equipped with a wind turbine wiring training module, a current transformer maintenance training module, and a circuit misconnection troubleshooting training module.

[0008] The wind turbine wiring training module is used to generate a first electrical signal when performing wind turbine wiring operations;

[0009] The current transformer maintenance training module is used to generate a second electrical signal when installing selected relay spare parts and when disconnecting and reconnecting current transformers.

[0010] The circuit misconnection troubleshooting training module is used to generate a third electrical signal when performing disconnection and reconnection operations;

[0011] The output component is used to be electrically connected to the wind turbine wiring training module, the current transformer maintenance training module and the circuit misconnection troubleshooting training module, and to receive the first electrical signal, the second electrical signal and the third electrical signal to output prompt information.

[0012] According to some embodiments of the present invention, the output component includes a logic controller and a first indicator light. The first indicator light is electrically connected to the logic controller. The logic controller is used to be electrically connected to the wind turbine wiring training module and to receive the first electrical signal. When the first electrical signal is high, the logic controller controls the first indicator light to light up.

[0013] According to some embodiments of the present invention, the wind turbine wiring training module includes:

[0014] Multiple first fan wiring terminals are arranged at intervals along the horizontal direction on the maintenance operation panel;

[0015] Multiple second fan wiring terminals are arranged horizontally at intervals on the maintenance operation panel. The second fan wiring terminals are used to connect to the corresponding first fan wiring terminals when performing fan wiring operations.

[0016] A fan, one end of which is connected to the plurality of second fan wiring terminals, and the other end of which is grounded, is used for electrical connection with the logic controller. When the second fan wiring terminals are connected to the corresponding first fan wiring terminals one by one, the fan wiring training module generates a first electrical signal. When the logic controller receives the first electrical signal as a high level, the logic controller controls the fan to rotate.

[0017] The first power supply module is electrically connected to the wiring terminal of the first fan, and the first power supply module is used to supply power to the fan.

[0018] According to some embodiments of the utility model, the output component further includes:

[0019] An audible and visual alarm is electrically connected to the logic controller. When the first electrical signal received by the logic controller is at a low level, the audible and visual alarm is controlled to emit an audible and visual alarm.

[0020] According to some embodiments of the utility model, the wind turbine wiring training module further includes:

[0021] A first button, one end of which is electrically connected to the fan, and the other end of which is electrically connected to the first power supply module;

[0022] The first button is used to disconnect the fan from the first power supply module when triggered, so as to stop the fan from rotating.

[0023] According to some embodiments of the utility model, the wind turbine wiring training module further includes:

[0024] The second button has one end electrically connected to the audible and visual alarm, and the other end electrically connected to the first power supply module.

[0025] The second button is used to disconnect the audible and visual alarm from the first power supply module when triggered, so that the audible and visual alarm stops alarming.

[0026] According to some embodiments of the utility model, the output component further includes a second indicator light group and a third indicator light group that are horizontally spaced on the maintenance operation panel. The second indicator light group and the third indicator light group are both electrically connected to the logic controller. The logic controller is used to be electrically connected to the circuit misconnection troubleshooting training module and to receive the third electrical signal to control the second indicator light group and the third indicator light group to light up.

[0027] The circuit misconnection troubleshooting training module includes:

[0028] The second power supply module is electrically connected to the positive terminal of the second indicator light group and the positive terminal of the third indicator light group, respectively.

[0029] A first switch assembly is configured corresponding to the second indicator light group, one end of the first switch assembly is electrically connected to one end of the second indicator light group, and the other end of the first switch assembly is grounded; and

[0030] The second switch assembly is configured corresponding to the third indicator light group. The positive terminal of the second switch assembly is electrically connected to one end of the second indicator light group, and the negative terminal of the second switch assembly is connected to the ground in sequence through a cascaded common grounding bus.

[0031] According to some embodiments of the utility model, the second indicator light group includes a plurality of second indicator lights spaced apart in a horizontal direction, and the third indicator light group includes a plurality of third indicator lights spaced apart in a horizontal direction. The positive terminals of each second indicator light and the third indicator light are electrically connected to the second power supply module.

[0032] The first switch assembly includes a plurality of first switches spaced apart in a horizontal direction, the positive terminal of the first switch is connected to the negative terminal of the second indicator light, and the negative terminals of the first switches are grounded one by one.

[0033] The second switch assembly includes a plurality of second switches spaced apart in a horizontal direction. The positive terminal of the second switch is connected to the negative terminal of the third indicator light. The negative terminal of the second switch closest to the first switch is grounded. The negative terminals of adjacent second switches are connected by a wire.

[0034] Specifically, when any of the second switches is disconnected, the third indicator lights corresponding to the second switches themselves and all their downstream counterparts are de-energized due to the interruption of the grounding circuit.

[0035] According to some embodiments of the utility model, the output component further includes a plurality of fourth indicator lights spaced apart along the horizontal direction. Each of the fourth indicator lights is electrically connected to the logic controller. The logic controller is used to be electrically connected to the current transformer maintenance training module and to receive the second electrical signal. When the second electrical signal is high, the logic controller controls the fourth indicator light to light up or turn off.

[0036] According to some embodiments of the utility model, the current transformer maintenance training module includes:

[0037] Multiple busbars are provided, and each of the multiple busbars is configured to correspond one-to-one with the fourth indicator light. The other end of each busbar is connected to the primary side of the current transformer.

[0038] The third power supply module is electrically connected to one end of the busbar;

[0039] A plurality of first terminals and a plurality of second terminals, wherein the first terminals are correspondingly connected to the second terminals, and the plurality of first terminals are used for connection to the secondary side of the current transformer; and

[0040] A relay socket is electrically connected to the plurality of second terminals, and the relay socket is used to install the selected relay spare parts.

[0041] The training device for standardizing electrical maintenance procedures provided in this embodiment of the utility model has at least the following advantages compared to the prior art: The maintenance operation panel can display maintenance operation training modules for different maintenance operation training scenarios, specifically including a wind turbine wiring training module, a current transformer maintenance training module, and a circuit misconnection troubleshooting training module. The training content of each maintenance operation training module is set according to the fault repair work content and periodic inspection work content of a nuclear power plant. Each maintenance operation training module contains teaching traps, which are intentionally set after analyzing a large number of electrical professional human factor incident reports. Thus, through training with this device, maintenance personnel can identify teaching traps, cultivate a meticulous and rigorous work attitude, and standardize maintenance procedures during the maintenance process, thereby effectively reducing human factor errors in the nuclear power plant maintenance process and improving the accuracy of maintenance procedures. The training device provided in this disclosure also includes an output component, which is used to receive the electrical signals generated after each maintenance operation training module has undergone maintenance operations, and finally outputs the final prompt information based on the electrical signals output by all maintenance operation training modules.

[0042] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a module of the training device provided in an embodiment of the present invention;

[0044] Figure 2A A schematic diagram of a wind turbine wiring training module provided in an embodiment of this utility model;

[0045] Figure 2B This is a schematic diagram of the fan disconnection and connection procedure provided in this embodiment;

[0046] Figure 3A A schematic diagram of the circuit wiring diagram provided in the training operation document for this utility model;

[0047] Figure 3B A schematic diagram of the circuit misconnection troubleshooting training module provided by this utility model;

[0048] Figure 4 A schematic diagram of the current transformer maintenance training module provided by this utility model;

[0049] Figure 5 A schematic diagram of the switch connection for the training device provided by this utility model.

[0050] Reference numerals: Training device 100, maintenance operation panel 110, output component 120, main power switch 130, first power switch 140, second power switch 150, third power switch 160, fan wiring training module 111, first fan wiring terminal 1111, second fan wiring terminal 1112, first power supply module 1113, fan 1114, first indicator light 1115, audible and visual alarm 1116, first button 1117, second button 1118, current transformer maintenance training module 112, fourth indicator light 1121, first terminal block 1122, second terminal block 1123, third power supply module 1124, busbar 1125, current transformer 1126, relay socket 1127, circuit misconnection troubleshooting training module 113, second indicator light group 1131, third indicator light group 1132, second power supply module 1133, first switch assembly 1134, second switch assembly 1135. Detailed Implementation

[0051] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0052] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0054] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0055] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Before introducing the training device for standardizing electrical maintenance procedures provided by this utility model, let's first introduce the training instruments for electrical maintenance procedures in related technologies. Currently, electrical maintenance personnel in the nuclear power industry both domestically and internationally need to undergo specialized training in electrical maintenance skills through specialized training instruments or courses, such as motor fault repair and electrical cabinet inspection. In related technologies, training instruments only focus on training electrical maintenance skills; however, it is uncertain whether maintenance personnel truly master these skills and whether they can correctly perform maintenance procedures according to maintenance specifications and learned knowledge during actual maintenance.

[0057] In actual electrical maintenance, errors by maintenance personnel leading to non-standard maintenance practices severely impact the equipment maintenance process. A secondary analysis of numerous reports of human error by electrical professionals revealed the following main non-standard electrical maintenance practices caused by human error: failure to check maintenance results upon completion; failure to observe and analyze the environment of the faulty equipment, blindly following maintenance instructions; failure to independently verify spare parts codes and performance when retrieving spare parts for faulty equipment; and failure to check and analyze whether the on-site fault conditions conform to the maintenance procedures. Related technologies lack standardized training for electrical maintenance practices, resulting in a high rate of human error during maintenance and low levels of standardization and accuracy in the electrical maintenance practices of maintenance personnel.

[0058] Based on this, and according to the analysis results of the above report, this utility model develops corresponding training scenarios, training documents, and training devices for common human error. Maintenance teaching traps are set in each training scenario so that maintenance personnel can standardize their maintenance behavior through training, reduce human error in the maintenance process, and improve the correctness of maintenance behavior.

[0059] In some embodiments, the training device 100 provided in this disclosure includes a housing, the interior of which houses the internal circuitry of the device, and a maintenance operation panel is provided on the upper surface of the housing. The training device provided in this utility model is designed with reference to the external shape and internal wiring design of a nuclear power plant electrical cabinet, and its color scheme is similar to that of a nuclear power plant electrical cabinet. Specifically, the housing of the training device 100 provided in this utility model includes an outer cabinet door, an inner cabinet panel, and a back panel. The inner cabinet panel can be used to install various control switches (e.g., electric switches, pressure switches, and level switches), and the back panel can be used to install a programmable logic controller (PLC), control circuits, and power circuits. A certain number of casters can be installed at the bottom of the housing. In this embodiment, a caster is provided at each of the four corners of the bottom of the housing to facilitate movement of the training device and reduce the difficulty of handling. Next, the composition of the training device 100 for standardizing electrical maintenance procedures provided in this utility model will be described in detail.

[0060] In this disclosed embodiment, please refer to Figure 1 , Figure 1 This is a schematic diagram of a module of the training device 100 provided in this embodiment of the present invention. The training device 100 provided in this disclosure includes a maintenance operation panel 110 and an output component 120. The maintenance operation panel 110 is provided with a fan wiring training module 111, a current transformer maintenance training module 112 and a circuit misconnection troubleshooting training module 113. The three operation training modules can be arranged at intervals along the vertical direction on the maintenance operation panel 110 to ensure that maintenance personnel can perform corresponding maintenance training in sequence according to the order of the training modules.

[0061] Specifically, the training objectives and usage methods of the above three training modules are as follows: The wind turbine wiring training module 111 is used to simulate wind turbine disconnection and connection scenarios to train maintenance personnel in wind turbine wiring operations. Maintenance personnel change the internal circuit connection of the wind turbine wiring training module 111 by performing wind turbine wiring operations, so that the wind turbine wiring training module 111 generates a corresponding first electrical signal. The correctness of the wind turbine wiring operation is detected by the generated first electrical signal.

[0062] The current transformer maintenance training module 112 is used to simulate current transformer maintenance scenarios. In this scenario, maintenance personnel need to first read the training operation document, determine the spare part number corresponding to the required relay spare part, and then obtain the corresponding relay spare part from the instructor or warehouse according to the spare part number. The spare part is then brought back to the training device 100 for installation. Furthermore, maintenance personnel need to perform the disconnection and connection operations of the current transformer on the module according to the operation procedures in the training operation document. After these two operations are completed, the current transformer maintenance training module 112 outputs a second electrical signal, which is used to detect the correctness of the two training operations.

[0063] The circuit misconnection troubleshooting training module 113 intentionally includes wiring circuits that differ from those described in the training operation manual. This is to test whether maintenance personnel can detect discrepancies between the wiring described in the training operation manual and the actual wiring. When the disconnection and reconnection operations described in the training operation manual are not applicable to the current wiring situation, the trainee needs to promptly report this to the instructor. If the maintenance personnel can identify the above situation and report it to the instructor, pointing out that the content described in the training operation manual is not applicable to the current circuit wiring situation, and are able to think about and adopt the correct wiring method to deal with the current circuit fault, or if the maintenance personnel fail to identify the above situation and disconnect and reconnect according to the operation content described in the training operation manual, the circuit misconnection troubleshooting training module 113 will output a third electrical signal in the corresponding situation. The generated third electrical signal is used to detect the correctness of the circuit misconnection troubleshooting operation.

[0064] Furthermore, the output component 120 can receive electrical signals from the three maintenance operation training modules mentioned above, and output prompt information based on the received electrical signals. The prompt information includes the final assessment result. Specifically, the output component 120 can be an AND logic gate. When the first, second, and third electrical signals are all high, the output component 120 can output a high level, either by voice announcement of passing the exam or by flashing an indicator light. The assessment is passed when all maintenance operations are performed correctly; if any maintenance operation is performed incorrectly, the assessment result is a failure.

[0065] It should be noted that the maintenance control panel 110 also includes a main power switch 130 for the training device 100, such as switch 001JA. Here, 001JA simply indicates the switch number and has no other special meaning. The main switch controls the connection between the training device 100 and the external power supply. Before and after operation training, the main switch must be in the "OFF" position to ensure safety during training. The structure of each operation training module will be described in detail below.

[0066] In some embodiments, the output component 120 includes a logic controller (not shown) and a first indicator light 1115. Specifically, the logic controller may be a programmable logic controller, and the first indicator light 1115 is electrically connected to the logic controller. The logic controller is used to be electrically connected to the wind turbine wiring training module 111 and to receive a first electrical signal generated by the wind turbine wiring training module 111 to control the first indicator light 1115 to light up or turn off, so as to provide feedback on the training results. The first electrical signal includes a high level and a low level. When the maintenance personnel perform the training operation correctly in the wind turbine wiring training module 111, the circuit in the wind turbine wiring training module 111 is turned on, and the first electrical signal is at a high level. After receiving the first electrical signal, the logic controller outputs a corresponding control signal, that is, outputs a working voltage that matches the first indicator light 1115, such as 5V or 12V, to control the first indicator light 1115 to light up. When the maintenance personnel perform the training operation incorrectly in the wind turbine wiring training module 111, that is, when the first wind turbine wiring terminal 1111 and the second wind turbine wiring terminal 1112 are connected incorrectly, a complete circuit is not formed, the circuit in the wind turbine wiring training module 111 is disconnected, the first electrical signal is at a low level, and the logic controller outputs a corresponding control signal to control the first indicator light 1115 to turn off.

[0067] Understandably, the logic controller can be installed inside the training device 100, and the first indicator light 1115 can be installed on the wind turbine wiring training module 111 on the maintenance operation panel 110, so that maintenance personnel can view the training results during the training process.

[0068] In some embodiments, see Figure 2A In the wind turbine wiring scenario, the wind turbine wiring training module 111 includes multiple first wind turbine wiring terminals 1111 and a number of second wind turbine wiring terminals 1112 equal to the number of first wind turbine wiring terminals 1111. That is, there are multiple first wind turbine wiring terminals 1111 and multiple second wind turbine wiring terminals 1112. Multiple first wind turbine wiring terminals 1111 are arranged horizontally at intervals on the maintenance operation panel 110, and multiple second wind turbine wiring terminals 1112 are arranged horizontally at intervals on the maintenance operation panel 110. The second wind turbine wiring terminals 1112 are used to connect to the corresponding first wind turbine wiring terminals 1111 when the wind turbine is operated.

[0069] In practical applications, the number of terminals can be one, two, three, or more. In this embodiment, there are three first fan wiring terminals 1111 and three second fan wiring terminals 1112. The three first fan wiring terminals 1111 are arranged side by side with intervals along the horizontal direction on the maintenance operation panel 110, and the three second fan wiring terminals 1112 are also arranged side by side with intervals along the horizontal direction on the maintenance operation panel 110. The arrangement of the first fan wiring terminals 1111 and the second fan wiring terminals 1112 is mirror-symmetrical. Maintenance personnel can connect the first fan wiring terminals 1111 and the second fan wiring terminals 1112 one by one through fan wiring operations.

[0070] The following details the functions of the wind turbine wiring training module 111 and the procedures for training maintenance personnel to operate the equipment correctly. Specifically, the teaching traps set by the wind turbine wiring training module 111 are as follows: the wiring shapes and colors in the training operation documents can mislead maintenance personnel. If maintenance personnel do not carefully check the corresponding wind turbine wiring terminal numbers and directly connect the wires based on the wiring shapes and colors they see, it will lead to wiring errors, the wind turbine will not rotate, and the training will fail. If maintenance personnel can carefully check and memorize the corresponding wind turbine wiring terminal numbers in the training operation documents and connect the wires based on the numbers, the training will be passed if the wiring is correct.

[0071] Specifically, please refer to Figure 2B , Figure 2B This disclosure provides a schematic diagram corresponding to the wind turbine disconnection and wiring procedure diagram in the training operation document. In the diagram, each group of wind turbine wiring terminals uses a "straight up and straight down" wiring method. For example, groups A, B, and C of wind turbine wiring terminals use a "straight up and straight down" wiring method, and the wiring colors in each wiring path are also the same. Figure 2B Different line types are used to represent different wiring colors, with the same line type representing the same color. Therefore, the "straight up and straight down" connection diagram in the program's attached diagram can mislead maintenance personnel. If maintenance personnel do not follow the correct terminal numbering for the wind turbine wiring, they may actually connect the wind turbine using the "straight up and straight down" method during actual operation.

[0072] However, the arrangement of the wind turbine wiring terminals in the wind turbine wiring training module 111 is not necessarily the same as the arrangement of the wind turbine wiring terminals in the wind turbine disconnection and wiring procedure diagram. If maintenance personnel only rely on the wire shape and wire color to connect the wind turbine, it will lead to wiring errors. For example, the actual connection method of the wind turbine wiring terminals in the wind turbine wiring training module 111 is as follows: Figure 2AAs shown, the connection method is not a straight-up-down connection. The first fan wiring terminal 1111 includes terminal U1, terminal V1, and terminal W1, and is horizontally spaced on the maintenance control panel 110. The second fan wiring terminal 1112 includes terminal U2, terminal V2, and terminal W2, and is horizontally spaced on the maintenance control panel 110. The correct fan wiring method is shown in the attached diagram of the fan disconnection and wiring procedure: terminal U1 connects to terminal W2, terminal V1 connects to terminal U2, and terminal W1 connects to terminal V2. If maintenance personnel... Figure 2A The wind turbine wiring training module 111 still uses a "straight up and straight down" connection method, which will lead to incorrect wind turbine wiring. For example, connecting terminal U1 to terminal U2 is an incorrect connection. The wind turbine wiring training module 111 misleads maintenance personnel with the wind turbine wiring diagrams in the attached diagrams. If maintenance personnel do not understand the meaning of the wiring, do not pay attention to the wiring principles and phase sequence, and simply remember that it is a "straight up and straight down" connection, they will make operational errors if they cannot carry out maintenance work based on a true understanding of the internal principles of the wiring. However, if maintenance personnel can correctly understand the wind turbine wiring principles and phase sequence before wiring, human error can be avoided. Thus, training through the wind turbine wiring training module 111 can cultivate maintenance personnel's awareness of standardized maintenance behavior, enabling them to carefully understand and memorize maintenance principles in future maintenance work, thereby improving the accuracy of their maintenance actions.

[0073] In some embodiments, further combined Figure 5 The wind turbine wiring training module 111 also includes a first power supply module 1113, and is combined with Figure 2A The wind turbine wiring training module 111 also includes a wind turbine 1114. The first power supply module 1113 is used to supply power to the wind turbine wiring training module 111 independently. The first power supply module 1113 is a three-phase power supply. The wind turbine 1114 can be used to indicate the correctness of the wind turbine wiring operation. If the wind turbine 1114 rotates, it means that the wind turbine wiring operation is executed correctly. If the wind turbine 1114 does not rotate, it means that the wind turbine wiring operation is executed incorrectly.

[0074] Specifically, one end of the fan 1114 is connected to multiple second fan wiring terminals 1112, the other end of the fan 1114 is grounded, the fan 1114 is electrically connected to the logic controller, the first power supply module 1113 is electrically connected to the first fan wiring terminal 1111, and the fan wiring training module 111 internally adopts a delta wiring method, with each vertex of the triangle connected to one phase of the three-phase power supply, and each triangle vertex corresponding to a set of fan wiring terminals, for example, one triangle wiring vertex corresponding to a set of fan wiring terminals U1 and W2. Continuing with... Figure 5The first power supply module 1113 can be connected to the main power switch 130 via the first power switch 140. The main power switch 130 is as described above as switch 001JA, so that the first power supply module 1113 can be turned on and off independently via the first power switch 140.

[0075] In some embodiments, continue to combine Figure 2A The output component 120 corresponding to the wind turbine wiring training module 111 includes an audible and visual alarm 1116. The audible and visual alarm 1116 is connected to the logic controller. When any of the multiple first wind turbine wiring terminals 1111 fails to be paired with the corresponding second wind turbine wiring terminal 1112, the first electrical signal received by the logic controller is low level. The logic controller controls the audible and visual alarm 1116 to issue an audible and visual alarm to report the wind turbine wiring error to the maintenance personnel.

[0076] In some embodiments, continue to combine Figure 2A The wind turbine wiring training module 111 also includes a first button 1117. One end of the first button 1117 is electrically connected to the wind turbine 1114, and the other end is electrically connected to the first power supply module 1113. The first button 1117 can control the connection between the wind turbine 1114 and the first power supply module 1113. If the maintenance personnel perform the wind turbine wiring operation correctly, the wind turbine 1114 will rotate. When the first button is triggered, the first button 1117 disconnects the electrical connection between the wind turbine 1114 and the first power supply module 1113, the first power supply module 1113 stops supplying power to the wind turbine 1114, and the wind turbine 1114 stops rotating.

[0077] In some embodiments, continue to combine Figure 2A The wind turbine wiring training module 111 also includes a second button 1118. One end of the second button 1118 is electrically connected to the audible and visual alarm 1116, and the other end is electrically connected to the first power supply module 1113. The second button 1118 can control the connection between the audible and visual alarm 1116 and the first power supply module 1113. If the maintenance personnel perform an incorrect wind turbine wiring operation, the audible and visual alarm 1116 will sound an alarm. When the second button 1118 is triggered, it disconnects the electrical connection between the audible and visual alarm 1116 and the first power supply module 1113. The first power supply module 1113 stops supplying power to the audible and visual alarm 1116, and the audible and visual alarm 1116 stops emitting alarms.

[0078] Specifically, please refer to Figure 2AThe first indicator light 1115 and the audible and visual alarm 1116 both belong to the output component 120 corresponding to the wind turbine wiring training module 111. Therefore, they are both arranged on the maintenance operation panel 110 for easy viewing and operation by maintenance personnel. For example, maintenance personnel can judge whether the maintenance operation is correct by observing the status of the first indicator light 1115. If the maintenance operation is correct, the wind turbine 1114 will rotate and the first indicator light 1115 will light up, indicating that the operation is correct. Maintenance personnel can press the first button 1117 to stop the wind turbine 1114 from rotating and end the training.

[0079] For details on circuit disconnection and reconnection scenarios, please refer to [link / reference]. Figure 3B The output component 120 corresponding to the circuit misconnection troubleshooting training module 113 includes a second indicator light group 1131 and a third indicator light group 1132 horizontally spaced on the maintenance operation panel 110. Both the second indicator light group 1131 and the third indicator light group 1132 are electrically connected to a logic controller. The logic controller is used to connect to the circuit misconnection troubleshooting training module 113 and receive the third electrical signal generated by the circuit misconnection troubleshooting training module 113. It is understood that the second indicator light group 1131 and the third indicator light group 1132 are located on the circuit misconnection troubleshooting training module 113 to provide feedback on training results to maintenance personnel.

[0080] In some embodiments, further combined Figure 5 The circuit misconnection troubleshooting training module 113 includes a second power supply module 1133, which is electrically connected to the positive terminals of the second indicator light group 1131 and the third indicator light group 1132, respectively. The second power supply module 1133 supplies power to the second and third indicator light groups 1131 and 1132. The indicator lights in the second and third indicator light groups 1131 and 1132 are arranged horizontally side-by-side at intervals on the maintenance operation panel 110. The circuit misconnection troubleshooting training module 113 also includes a first switch assembly 1134, which is correspondingly arranged with the second indicator light group 1131. The first switch assembly 1134 controls the connection between the second indicator light group 1131 and the second power supply module 1133. One end of the first switch assembly 1134 is electrically connected to one end of the second indicator light group 1131, and the other end of the second indicator light group 1131 is grounded.

[0081] The circuit misconnection troubleshooting training module 113 also includes a second switch assembly 1135, which is correspondingly set with the third indicator light group 1132. The positive terminal of the second switch assembly 1135 is electrically connected to one end of the third indicator light group 1132, and the negative terminal of the second switch assembly 1135 is connected to the ground in sequence through a cascaded common grounding bus.

[0082] The following section details the functions of the Circuit Misconnection Troubleshooting Training Module 113 and the procedures for training maintenance personnel to operate it correctly. The circuit wiring diagrams in the training manuals may not match the actual wiring shown in the Module 113. If training personnel fail to assess the actual circuit wiring and blindly follow the diagrams and instructions in the training manuals, human error may occur, potentially leading to power failure in critical equipment. Through training with the Module 113, maintenance personnel will recognize the need to analyze the actual wiring before performing maintenance, rather than blindly following instructions in the training manuals. This cultivates a meticulous and analytical work ethic, as well as a rigorous and conscientious attitude.

[0083] In some embodiments, please refer to Figure 3A , Figure 3A A schematic diagram of the circuit wiring diagram provided in the training operation document of this utility model. Figure 3A In the circuit diagram, the second power supply module 1133 is a 24V DC power supply. The circuit shown in the circuit diagram includes a second indicator light group 1131 and a third indicator light group 1132. The second indicator light group 1131 includes multiple second indicator lights spaced horizontally, specifically including indicator lights 011LA, 012LA, 013LA, and 014LA. 011LA to 014LA represent the numbers of the second indicator light group 1131 for easy management and identification of the indicator lights, and have no other special meaning. The third indicator light group 1132 includes multiple third indicator lights spaced horizontally, specifically including indicator lights 015LA, 016LA, 017LA, and 018LA. 015LA to 018LA represent the numbers of the third indicator light group 1132 for easy management and identification of the indicator lights, and have no other special meaning.

[0084] In some embodiments, the circuit misconnection troubleshooting training module 113 further includes a first switch assembly 1134 corresponding to the second indicator light group 1131 and a second switch assembly 1135 corresponding to the third indicator light group 1132. The first switch assembly 1134 includes a plurality of first switches spaced apart horizontally, and the second switch assembly 1135 includes a plurality of second switches spaced apart horizontally. The first switch assembly 1134 can be any type of switch, for example... Figure 3A The toggle switch shown Figure 3AThe first switch component 1134 specifically includes switches 011JS, 012JS, 013JS, and 014JS, where 011JS to 014JS represent the numbers of the first switch component 1134 for easy management and identification, and have no other special meaning. The second switch component 1135 specifically includes switches 015JS, 016JS, 017JS, and 018JS, where 015JS to 018JS represent the numbers of the second switch component 1135 for easy management and identification, and have no other special meaning.

[0085] The first switch in the first switch assembly 1134 is configured to correspond one-to-one with the second indicator light in the second indicator light group 1131. For example, switch 011JS is configured to correspond to indicator light 011LA, and switch 012JS is configured to correspond to indicator light 012LA. The second switch assembly 1135 is used to control the off or on state of the corresponding third indicator light group 1132. The second switch in the second switch assembly 1135 is configured to correspond one-to-one with the third indicator light in the third indicator light group 1132. For example, switch 016JS is configured to correspond to indicator light 16LA, and switch 017JS is configured to correspond to indicator light 017LA. The second switch assembly 1135 is used to control the off or on state of the corresponding third indicator light group 1132.

[0086] In some embodiments, the actual circuit connection methods demonstrated in the circuit misconnection troubleshooting training module 113 are as follows: Figure 3B As shown, the circuit misconnection troubleshooting training module 113 includes a first switch assembly 1134 and a second indicator light group 1131 corresponding to the first switch assembly 1134, as well as a second switch assembly 1135 and a third indicator light group 1132 corresponding to the second switch assembly 1135. The circuit misconnection troubleshooting training module 113 also includes a second power supply module 1133, wherein the second power supply module 1133 is a 24V DC power supply.

[0087] The system comprises the following components: a second indicator light group 1131 includes multiple second indicator lights spaced horizontally; a third indicator light group 1132 includes multiple third indicator lights spaced horizontally; a first switch assembly 1134 includes multiple first switches spaced horizontally; and a second switch assembly 1135 includes multiple second switches spaced horizontally. The positive terminals of all second and third indicator lights are electrically connected to the second power supply module 1133. The positive terminals of the first switches are connected to the negative terminals of the second indicator lights, and the negative terminals of the first switches are grounded. The positive terminals of the second switches are connected to the negative terminals of the third indicator lights. The negative terminals of the second switches closest to the first switches are grounded. The negative terminals of adjacent second switches are connected by wires. When any second switch is disconnected, the third indicator light corresponding to that switch and its downstream switches is de-energized and extinguished due to the interruption of the grounding circuit. "Upstream" refers to the side closer to the first switch, and "downstream" refers to the side farther from the first switch.

[0088] by Figure 3B For example, Figure 3B The circuit misconnection troubleshooting training module 113 shown includes a first switch group 1134 comprising multiple first switches spaced apart horizontally, specifically switches 011JS, 012JS, 013JS, and 014JS. The second switch group 1135 comprises multiple second switches spaced apart horizontally, specifically switches 015JS, 016JS, 017JS, and 018JS. The second indicator light group 1131 comprises multiple second indicator lights spaced apart horizontally, specifically indicator lights 011LA, 012LA, 013LA, and 014LA. The third indicator light group 1132 comprises multiple third indicator lights spaced apart horizontally, specifically indicator lights 015LA, 016LA, 017LA, and 018LA. When any second switch is interrupted, the third indicator light corresponding to that switch and its downstream second switch is de-energized due to the interruption of the grounding circuit.

[0089] In some embodiments, please refer to Figure 3B For example, when the second switch 015JS is turned off, the third indicator lights 015LA, 016LA, 017LA and 018LA are simultaneously de-energized; when the second switch 016JS is turned off, the third indicator lights 016LA, 017LA and 018LA are simultaneously de-energized; when the second switch 017JS is turned off, the third indicator lights 017LA and 018LA are simultaneously de-energized; when the second switch 018JS is turned off, only the third indicator light 018LA is de-energized.

[0090] As mentioned earlier, disconnecting and reconnecting circuits is considered live-line work. Some nuclear power plant operations require live maintenance of individual components, and it is undesirable to cause power loss to other equipment during the maintenance process. However, the circuit wiring diagrams do not always match the actual circuit wiring in the circuit misconnection troubleshooting training module 113. If maintenance personnel do not analyze the actual circuit connections and blindly follow the instructions in the training manual to perform live disconnection and reconnection operations, it may lead to power loss to other equipment besides the equipment being disconnected and reconnected.

[0091] Specifically, in this embodiment, the work instructions in the training operation document are as follows: "Disconnect wiring A17 (wire number 7) on the top side of the terminal block. Indicator light 017LA will turn off, and other indicator lights will not be affected. Please wrap wiring A17 tightly with insulating tape." If maintenance personnel do not carefully analyze the circuit connection method in the circuit misconnection troubleshooting training module 113 and carelessly disconnect switch 017JS according to the work instructions in the training operation document, indicator lights 017LA and 018LA will turn off. Similarly, disconnecting switch 015JS will cause indicator lights 015LA to 018LA to turn off, and disconnecting switch 016JS will cause indicator lights 016LA to 018LA to turn off. In actual maintenance, such errors may lead to power loss of important equipment. Through the circuit misconnection troubleshooting training module 113, maintenance personnel can cultivate the ability to carefully observe and analyze whether the actual circuit and the circuit diagram are consistent, avoiding power loss of important equipment due to human error.

[0092] In current transformer maintenance scenarios, maintenance personnel need to retrieve the corresponding relay spare parts according to the serial number indicated in the training operation document. For example, the training operation document may contain the following: "Please have the instructor retrieve a qualified spare part for relay 511XI (spare part number JD-FT14V240XR) from the warehouse." In this scenario, the instructor prepares four spare relays in advance. The spare relay numbers and descriptions are as follows: JDFT14V240XR (spare relay description: 14 pins, 24V DC power supply); JDFT08V240XR (spare relay description: 8 pins, 24V DC power supply); JDFT14V220XR (spare relay description: 14 pins, 220V AC power supply); JDFT08V220XR (spare relay: 8 pins, 220V AC power supply). Only one of these spare relays is correct. When different spare relays are connected to the circuit, the current transformer maintenance training module 112 will generate different feedback, which will be described in detail later.

[0093] When trainees collect relay spare parts from the warehouse, instructors should casually give them the wrong spare part. If the trainee carefully checks the spare part code and promptly discovers the discrepancy between the code and the one recorded in the training manual, the instructor should replace it with the correct spare part and praise the trainee's questioning attitude and meticulous work style. If the trainee fails to carefully check the spare part code and uses it haphazardly without realizing the problem until the work is completed, the instructor should analyze the entire process, pointing out the problem and the correct procedure.

[0094] The current transformer maintenance scenario also includes a teaching trap involving incorrect current transformer disconnection and connection instructions. Specifically, the training theory document states in "1.1 Precautions" that with the primary side energized, it is strictly forbidden to open the secondary circuit (i.e., disconnect the circuit) of the current transformer, and it is strictly forbidden to short-circuit the secondary circuit of the voltage transformer. However, the training operation document contains the following instructions: "3.2 Set switch 002JS to the 'ON' position" and "3.5 Unplug all the secondary side connectors (four red connectors) of the current transformer to disconnect the secondary circuit." The contents of 3.2 and 3.5 in the training operation document contradict the contents of "1.1 Precautions" in the training theory document. If the maintenance personnel are electrical workers, they should understand that the content in the training theory document is basic electrical knowledge, namely, "with the primary side energized, it is strictly forbidden to open the secondary circuit (i.e., disconnect the circuit) of the current transformer." If the staff forgets the requirements in the training theory document and blindly follows the instructions in the training operation document even when the operation content does not conform to common sense, it will lead to errors in the maintenance process. If the maintenance personnel can point out the problem in time, the instructor can eliminate this teaching trap by acknowledging the printing error in the operation content of the training operation document and correcting one word (changing "ON" to "OFF"). That is, the content of 3.2 in the training operation document should be changed to "set switch 002JS to the 'OFF' position".

[0095] In current transformer maintenance scenarios, see Figure 4The output component 120 corresponding to the current transformer maintenance training module 112 includes multiple fourth indicator lights 1121 spaced apart along the horizontal direction. Each fourth indicator light 1121 is electrically connected to a logic controller. The logic controller is used to connect to the current transformer maintenance training module 112 and receive the second electrical signal generated by the current transformer maintenance training module 112. The logic controller controls the lighting or extinguishing state of the fourth indicator lights 1121 according to the received second electrical signal. Specifically, when the maintenance personnel correctly perform the current transformer disconnection and wiring operation and install the correct relay spare parts, the current transformer maintenance training module 112 generates a second electrical signal. At this time, the second electrical signal is at a high level, and the logic controller receives the second electrical signal and controls all the fourth indicator lights 1121 to light up. When the maintenance personnel fail to perform the correct current transformer disconnection and wiring operation, the second electrical signal is at a low level, and the logic controller receives the second electrical signal and controls the fourth indicator lights 1121 to turn off completely. When the maintenance personnel perform the correct current transformer disconnection and wiring operation but fail to select and install the correct relay spare parts, the second electrical signal is at a low level, and the logic controller receives the second electrical signal and controls some of the fourth indicator lights 1121 to turn off or light up. The different lighting states of the fourth indicator lights 1121 caused by connecting different relay spare parts will be described in detail later.

[0096] In this embodiment of the disclosure, the circuit corresponding to the current transformer maintenance training module 112 on the maintenance operation panel 110 is as follows: Figure 4 As shown, the current transformer maintenance training module 112 includes multiple first terminals 1122, multiple second terminals 1123, and multiple busbars 1125. The first terminals 1122 are used for one-to-one connection with the second terminals 1123. Further combined with... Figure 5 The current transformer maintenance training module 112 also includes a third power supply module 1124, and is combined with... Figure 4 The current transformer maintenance training module 112 also includes a current transformer 1126 and a relay socket 1127. The relay socket 1127 is used to install the relay spare parts selected by the maintenance personnel. Multiple busbars 1125 are set one-to-one with the fourth indicator light 1121. The other end of each busbar 1125 is connected to the primary side of the current transformer 1126. Multiple first terminals 1122 are used to connect to the secondary side of the current transformer 1126. The primary side is the winding side of the input power supply, and the secondary side is the winding side of the output load. The primary side is directly connected to the winding side of the power supply or input power, responsible for receiving electrical energy input. The secondary side is connected to the winding side of the load or output power, responsible for outputting electrical energy to external equipment. One end of the relay socket 1127 is electrically connected to multiple second terminals 1123, that is, connected to the secondary side of the current transformer 1126. The other end of the relay socket 1127 can be connected to the load, which is not restricted here.

[0097] As mentioned above, the number of fourth indicator lights 1121 is equal to that of bus 1125, and they are set up one-to-one with bus 1125. They can be used to provide feedback on the results of the current transformer disconnection and connection operations performed by maintenance personnel, as well as whether the installed relay spare parts are correct. Specifically, the "1.1 Precautions" section of the training operation manual clearly states that "when the primary side is energized, it is strictly forbidden to open the secondary circuit of the current transformer (i.e., disconnect the circuit) or short-circuit the secondary circuit of the voltage transformer, otherwise the current transformer or voltage transformer will be burned out." However, the following content appears in the operation instructions section of the training operation manual: "3.2 Set switch 002JS to the "ON" position" and "3.5 Unplug all the secondary side connectors (four red connectors) of the current transformer to disconnect the secondary circuit." Steps 3.2 and 3.5 contradict "Precautions in 1.1". If the trainee is an electrical worker, they should understand that this is basic electrical knowledge. If the maintenance personnel perform the current transformer disconnection and reconnection operation according to the operating instructions, that is, disconnect all first terminals 1122 from the corresponding second terminals 1123, the secondary side of the current transformer 1126 will be open-circuited, and all fourth indicator lights 1121 will be turned off. If the maintenance personnel can find and point out the errors in the training operation document, they can proceed to the next training operation, that is, obtain the corresponding numbered relay spare parts from the instructor and take them back to the training device 100 for installation.

[0098] After replacing relay 511XI, if the correct spare part (JDFT14V240XR) is used, all four fourth indicator lights 1121 will illuminate. If the spare part JDFT08V240XR is used, the two lower fourth indicator lights 1121 will illuminate. If the spare part JDFT08V220XR or JDFT14V220XR is used, all four fourth indicator lights 1121 will not illuminate. Please refer to the following: Figure 5 The third power supply module 1124 of the current transformer maintenance training module 112 can be connected to the main power switch 130 via the third power switch 160, so that the on / off state of the third power supply module 1124 can be controlled independently via the third power switch 160. After the maintenance personnel have completed the above-mentioned current transformer disconnection and wiring operations and installed the corresponding relay spare parts, the current transformer maintenance training module 112 sends the second electrical signal to the logic controller, and the logic controller receives the second electrical signal and makes corresponding feedback.

[0099] The practical benefits of this disclosure are illustrated by using the training device 100 for nuclear power plant maintenance personnel: This device can simulate several typical error-prone work scenarios in electrical maintenance, strengthening the behavioral norms of maintenance personnel through training, reducing human error during electrical maintenance, and improving the accuracy of maintenance actions. The device has an intelligent judgment function, using the PLC program built into the logic controller to compare the received electrical maintenance operations with those of the maintenance personnel. If the maintenance personnel make an error, the training device 100 immediately issues an alarm. Furthermore, the training device 100 provided by this disclosure is small in size yet includes multiple training scenarios, has strong training functions, is easy to transport, and has low space requirements for training sites. Finally, the training device 100 provided by this disclosure enables self-service training and assessment for maintenance personnel, training up to 30 people per day, greatly improving training efficiency and saving instructor labor costs.

[0100] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A training device for standardizing electrical inspection procedures, characterized in that, The training device includes: The enclosure has a maintenance and operation panel on its upper surface. The maintenance operation panel is equipped with a wind turbine wiring training module, a current transformer maintenance training module, and a circuit misconnection troubleshooting training module. The wind turbine wiring training module is used to generate a first electrical signal when performing wind turbine wiring operations; The current transformer maintenance training module is used to generate a second electrical signal when installing selected relay spare parts and when disconnecting and reconnecting current transformers. The circuit misconnection troubleshooting training module is used to generate a third electrical signal when performing disconnection and reconnection operations; The output component is used to be electrically connected to the wind turbine wiring training module, the current transformer maintenance training module and the circuit misconnection troubleshooting training module, and to receive the first electrical signal, the second electrical signal and the third electrical signal to output prompt information.

2. The training device according to claim 1, characterized in that, The output component includes a logic controller and a first indicator light. The first indicator light is electrically connected to the logic controller. The logic controller is used to be electrically connected to the wind turbine wiring training module and to receive the first electrical signal. When the first electrical signal is high, the logic controller controls the first indicator light to light up.

3. The training device according to claim 2, characterized in that, The wind turbine wiring training module includes: Multiple first fan wiring terminals are arranged at intervals along the horizontal direction on the maintenance operation panel; Multiple second fan wiring terminals are arranged horizontally at intervals on the maintenance operation panel. The second fan wiring terminals are used to connect to the corresponding first fan wiring terminals when performing fan wiring operations. A fan, one end of which is connected to the plurality of second fan wiring terminals, and the other end of which is grounded, is used for electrical connection with the logic controller. When the second fan wiring terminals are connected to the corresponding first fan wiring terminals one by one, the fan wiring training module generates a first electrical signal. When the logic controller receives the first electrical signal as a high level, the logic controller controls the fan to rotate. The first power supply module is electrically connected to the wiring terminal of the first fan, and the first power supply module is used to supply power to the fan.

4. The training device according to claim 3, characterized in that, The output component also includes: An audible and visual alarm is electrically connected to the logic controller. When the first electrical signal received by the logic controller is at a low level, the audible and visual alarm is controlled to emit an audible and visual alarm.

5. The training device according to claim 4, characterized in that, The wind turbine wiring training module also includes: A first button, one end of which is electrically connected to the fan, and the other end of which is electrically connected to the first power supply module; The first button is used to disconnect the fan from the first power supply module when triggered, so as to stop the fan from rotating.

6. The training device according to claim 4, characterized in that, The wind turbine wiring training module also includes: The second button has one end electrically connected to the sound and light alarm and the other end electrically connected to the first power supply module. The second button is used to disconnect the audible and visual alarm from the first power supply module when triggered, so that the audible and visual alarm stops alarming.

7. The training apparatus according to any one of claims 2 to 6, characterized in that, The output component further includes a second indicator light group and a third indicator light group that are horizontally spaced on the maintenance operation panel. The second indicator light group and the third indicator light group are both electrically connected to the logic controller. The logic controller is used to be electrically connected to the circuit misconnection troubleshooting training module and to receive the third electrical signal to control the second indicator light group and the third indicator light group to light up. The circuit misconnection troubleshooting training module includes: The second power supply module is electrically connected to the positive terminal of the second indicator light group and the positive terminal of the third indicator light group, respectively. A first switch assembly is configured corresponding to the second indicator light group, one end of the first switch assembly is electrically connected to one end of the second indicator light group, and the other end of the first switch assembly is grounded; and The second switch assembly is configured corresponding to the third indicator light group. The positive terminal of the second switch assembly is electrically connected to one end of the second indicator light group, and the negative terminal of the second switch assembly is connected to the ground in sequence through a cascaded common grounding bus.

8. The training device according to claim 7, characterized in that, The second indicator light group includes a plurality of second indicator lights spaced apart in the horizontal direction, and the third indicator light group includes a plurality of third indicator lights spaced apart in the horizontal direction. The positive terminals of each second indicator light and the third indicator light are electrically connected to the second power supply module. The first switch assembly includes a plurality of first switches spaced apart in a horizontal direction, the positive terminal of the first switch is connected to the negative terminal of the second indicator light, and the negative terminals of the first switches are grounded one by one. The second switch assembly includes a plurality of second switches spaced apart in a horizontal direction. The positive terminal of the second switch is connected to the negative terminal of the third indicator light. The negative terminal of the second switch closest to the first switch is grounded. The negative terminals of adjacent second switches are connected by a wire. Specifically, when any of the second switches is disconnected, the third indicator lights corresponding to the second switches themselves and all their downstream counterparts are de-energized due to the interruption of the grounding circuit.

9. The training apparatus according to any one of claims 2 to 6, characterized in that, The output component also includes a plurality of fourth indicator lights spaced apart along the horizontal direction. Each of the fourth indicator lights is electrically connected to the logic controller. The logic controller is used to be electrically connected to the current transformer maintenance training module and to receive the second electrical signal. When the second electrical signal is high, the logic controller controls the fourth indicator light to light up.

10. The training device according to claim 9, characterized in that, The current transformer maintenance training module includes: Multiple busbars are provided, and each of the multiple busbars is configured to correspond one-to-one with the fourth indicator light. The other end of each busbar is connected to the primary side of the current transformer. The third power supply module is electrically connected to one end of the busbar; A plurality of first terminals and a plurality of second terminals, wherein the first terminals are correspondingly connected to the second terminals, and the plurality of first terminals are used for connection to the secondary side of the current transformer; and A relay socket is electrically connected to the plurality of second terminals, and the relay socket is used to install the selected relay spare parts.

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