Secondary practical training device for centrally installed switchgear and practical training method thereof

Abstract

The invention relates to a centrally installed switchgear secondary practical training device and a practical training method.The practical training device comprises a machine body, a secondary low-voltage chamber, an operation table, a circuit breaker chamber and a control system, the circuit breaker chamber comprises a secondary circuit breaker simulation tool connected with the simulation signal transmission end of the control system, a circuit breaker and a grounding switch, and the circuit breaker and the grounding switch are both connected with the operation table; the secondary circuit breaker simulation tool is provided with a secondary test contact connected with a secondary low-voltage chamber, a first opening and closing control contact connected with a circuit breaker, and a second opening and closing control contact connected with a grounding switch. Corresponding signals are transmitted through any one or more of the secondary test contact, the first opening and closing control contact and the second opening and closing control contact, a corresponding practical training circuit environment is further simulated, a secondary circuit breaker simulation tool is adopted to replace a traditional circuit breaker body for opening and closing operation, and the cost of practical training equipment is greatly reduced.

Description

Technical Field

[0001] The present application relates to the field of secondary training of central cabinets, and in particular to a secondary training device for central cabinets and a training method thereof. Background Art

[0002] In order to respond to the trainees' training needs for learning the secondary principle of the central cabinet and the relay protection test, it is necessary to design a safe, reliable, easy-to-operate, economical and practical equipment, involving the central cabinet structure and electrical components such as the switch compartment, circuit breaker module, cable terminal compartment, low-voltage compartment, and low-voltage room instrument door. The traditional central cabinet needs to use the circuit breaker body to realize the opening and closing operation, which is expensive, the opening and closing mechanical linkage is violent, the trolley test working position is frequently switched, and the mechanical parts are easily damaged. It is expensive, and it is difficult to achieve the purpose of training on site, which is not conducive to the practical training of secondary personnel and relay protection personnel.

[0003] Application Contents

[0004] In order to solve the problem that the circuit breaker body used in the traditional center cabinet is not conducive to the training of secondary personnel and relay protection personnel, the present application provides a center cabinet secondary training device and a training method thereof.

[0005] The present application provides a secondary training device for a central cabinet, which adopts the following technical solution:

[0006] A secondary training device for a central cabinet comprises a body, a secondary low-voltage chamber arranged on the body, an operating table and a circuit breaker chamber respectively arranged on different sides of the secondary low-voltage chamber, and a control system, wherein the circuit breaker chamber comprises a secondary circuit breaker simulation tool connected to an analog signal transmission end of the control system, and a circuit breaker and a grounding switch both connected to the operating table, the secondary circuit breaker simulation tool is provided with a secondary test contact connected to the secondary low-voltage chamber, a first opening and closing control contact connected to the circuit breaker, and a second opening and closing control contact connected to the grounding switch, the control system is used to transmit corresponding signals through any one or more of the secondary test contacts, the first opening and closing control contacts and the second opening and closing control contacts according to the acquired training content, thereby simulating a corresponding training circuit environment, and the signal acquisition end of the control system is respectively connected to the secondary low-voltage chamber and the operating table to obtain the operation information of the trainees, and then perform corresponding feedback operations.

[0007] By adopting the above technical solutions, this solution greatly reduces the cost of training equipment by using secondary circuit breaker simulation tooling to replace the traditional circuit breaker body for opening and closing operations. Traditional center cabinets require the use of expensive circuit breakers for frequent opening and closing operations, while the secondary circuit breaker simulation tooling in this design can complete the corresponding operations through simulated signal transmission, avoiding actual mechanical linkage, thereby reducing the wear and damage of mechanical parts. In addition, the combination of the operating table and the control system enables trainees to easily switch the working position and test position of the trolley, ensuring the safety and operability of the training process. It not only improves the efficiency of training, but also reduces the loss of equipment in on-site training, thereby better meeting the training needs of secondary principle learning and relay protection testing. This design provides a safe, reliable, economical and practical solution to solve the problems of high cost and serious mechanical loss of traditional center cabinet training equipment.

[0008] Preferably, the secondary test contact and the secondary low-pressure chamber are connected via a secondary aviation plug-in.

[0009] By adopting the above technical solution, the secondary aviation plug-in can realize multi-signal transmission through more pins, ensuring the diversity and stability of signal transmission between the secondary low-voltage chamber and other components, thereby improving the efficiency of equipment connection and the accuracy of experimental signal transmission, and further ensuring the integrity of practical training operations.

[0010] Preferably, the secondary aviation plug-in has 58 pins.

[0011] By adopting the above technical solution, the 58-pin secondary aviation plug-in is used to connect the secondary equipment and the primary equipment, mainly to meet the needs of multiple control, signal feedback and protection functions, reduce wiring complexity, and ensure the reliability of signal transmission. Each pin is responsible for independently transmitting a signal or power supply, and the 58-pin provides enough channels to support complex control and protection systems.

[0012] Preferably, a cable chamber is provided below the circuit breaker chamber, a mutual inductor is provided on the cable chamber, and at least a first training test contact connected to the control system is provided on the mutual inductor, and the first training test contact is used to obtain in real time the user's training operation information of accuracy verification and polarity test on the mutual inductor.

[0013] By adopting the above technical solution, the mutual inductor installed in the cable room has a first training test contact connected to the control system, which can obtain in real time the trainees' operation information for mutual inductor accuracy verification and polarity testing, thereby ensuring that the trainees' operation performance can be accurately monitored and recorded during the training process, further improving the comprehensiveness and accuracy of the training.

[0014] Preferably, a circuit breaker operating knob and an earthing switch operating button are provided on the operating table. The circuit breaker operating knob is connected to the circuit breaker to realize the conversion of the circuit breaker trolley working position and the test position. The earthing switch operating knob is connected to the earthing switch to realize the opening and closing of the earthing switch and the circuit breaker tripping simulation operation.

[0015] By adopting the above technical solution, the circuit breaker operating knob on the operating table is connected to the circuit breaker, which can realize the conversion of the working position and the test position of the circuit breaker trolley, so that trainees can switch the normal or test state of the circuit breaker by operating the knob, thereby improving the operational flexibility and the realism of the training, and helping trainees to become familiar with the actual operation process of the circuit breaker.

[0016] Preferably, the circuit breaker operation knob is provided with a second training test contact connected to the control system, and the second training test contact is used to obtain training operation information of the user operating the circuit breaker in real time.

[0017] By adopting the above technical solution, a second training test contact is provided on the circuit breaker operation knob, which can obtain the trainee's operating information of the circuit breaker in real time, so that the control system can accurately feedback the working status of the circuit breaker according to the trainee's operating behavior, thereby improving the training effect of the trainee's operating skills and ensuring the integrity of data records during the training process.

[0018] Preferably, a third training test contact connected to the control system is provided on the grounding switch knob, and the third training test contact is used to obtain training operation information of the user operating the grounding switch in real time.

[0019] By adopting the above technical solution, a third practical training test contact is provided on the grounding switch knob, which can obtain the trainee's operating information of the grounding switch in real time, ensuring that each operation of the trainee can be timely monitored and analyzed by the control system, thereby ensuring the safety of the grounding switch operation and effective training of grounding operation in practical training, and improving the safety and accuracy of the operation.

[0020] Preferably, the secondary low-voltage chamber is provided with a plurality of different secondary components, and the secondary components are provided with a first acquisition contact connected to the signal acquisition end of the control system. When the trainee operates through the operating table, the first acquisition contact is used to send the secondary low-voltage chamber feedback signal generated after the operation of the operating table.

[0021] By adopting the above technical solution, multiple secondary components are installed in the secondary low-voltage room, and the components are connected to the signal acquisition terminal of the control system. The trainee's operation signal can be obtained in real time through the first acquisition contact, so that the feedback signal generated by the trainee during the operation can be effectively collected and analyzed, thereby improving the system's real-time response and feedback effect on the trainee's operation, and helping the trainees to better understand the working principle of the secondary circuit in practical training.

[0022] A training method based on a secondary training device for a central cabinet is applied to a secondary training device for a central cabinet, and the training method comprises:

[0023] Acquire training content, and determine key components and a training status data set of the key components according to the training content;

[0024] Determine the transmission path between the secondary circuit breaker simulation tooling and each of the key components, and determine the electrical contacts of the secondary circuit breaker simulation tooling according to the transmission path, wherein the electrical contacts include a secondary test contact, a first opening and closing control contact, and a second opening and closing control contact;

[0025] Determine analog signal parameters according to the training state data set, and send the analog signal parameters to key components through corresponding electrical contacts;

[0026] The operation information of the operation console and the feedback information of each of the key components are obtained, and corresponding feedback operations are performed according to the operation information and the feedback information, wherein the feedback operations at least include status warning operations.

[0027] By adopting the above technical solution, the training content is obtained through the control system and the training status data set of key components is determined, which can effectively simulate the corresponding equipment operation status and operation process according to the training needs, thereby improving the pertinence and accuracy of the training process, and ensuring that trainees can experience the operation response of real equipment in a simulated environment; according to the transmission path of the secondary circuit breaker simulation tooling and key components, the electrical contacts are determined, and the simulation signal is generated according to the transmission path and equipment status. It can generate accurate signal transmission parameters according to the actual transmission path of the equipment, thereby effectively improving the stability and accuracy of signal transmission, and ensuring that every operation and state change in the training can be accurately simulated and responded to.

[0028] Preferably, the step of determining the simulation signal parameters according to the training state data set includes:

[0029] At least extracting the running state feature, the state cycle feature and the signal strength feature from the training state data set;

[0030] generating a first simulation parameter for determining the operating state of a key component according to the operating state characteristics;

[0031] According to the state cycle characteristics, generating a second simulation parameter for determining the duration and frequency of the operation state of the key components;

[0032] generating a third simulation parameter for determining the signal strength required for transmission to the key components according to the signal strength characteristic, wherein the signal strength characteristic is determined according to the path length and / or path interference type between the key components and the secondary circuit breaker simulation tooling;

[0033] The first simulation parameter, the second simulation parameter and the third simulation parameter are integrated to generate corresponding simulation signal parameters.

[0034] By adopting the above technical solution, simulation signal parameters are generated by extracting operating status characteristics, status cycle characteristics and signal strength characteristics. The accuracy of the signal can be ensured through multi-dimensional data analysis, so that the system can flexibly adjust the signal strength and transmission time according to different training needs, thereby improving the accuracy of the simulation signal and ensuring that trainees receive accurate feedback during operation.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. This solution significantly reduces the cost of training equipment by using secondary circuit breaker simulation tooling to replace the traditional circuit breaker body for opening and closing operations. Traditional center cabinets require the use of expensive circuit breakers for frequent opening and closing operations, while the secondary circuit breaker simulation tooling in this design can complete the corresponding operations through simulated signal transmission, avoiding actual mechanical linkage, thereby reducing wear and damage to mechanical parts. In addition, the combination of the operating table and the control system enables trainees to easily switch the working position and test position of the trolley, ensuring the safety and operability of the training process. It not only improves the efficiency of training, but also reduces the loss of equipment during on-site training, thereby better meeting the training needs of secondary principle learning and relay protection testing. This design provides a safe, reliable, economical and practical solution, solving the problems of high cost and severe mechanical loss of traditional center cabinet training equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a simplified structural diagram of a secondary training device for a central cabinet according to an embodiment of the present application.

[0038] Figure 2 This is a three-dimensional structure diagram of a secondary training device for a central cabinet according to an embodiment of the present application. Figure 1 .

[0039] Figure 3 This is a three-dimensional structure diagram of a secondary training device for a central cabinet according to an embodiment of the present application. Figure 2 .

[0040] Figure 4 It is a flowchart of a training method based on a secondary training device of a central cabinet according to an embodiment of the present application.

[0041] Figure 5 It is a flowchart for implementing step S30 in a training method based on a secondary training device for a central cabinet according to an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 1. Machine body; 2. Secondary low-voltage room; 3. Operating table; 4. Circuit breaker room; 41. Secondary circuit breaker simulation tooling; 42. Circuit breaker; 43. Grounding switch; 5. Cable room; 6. Control system. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-5 This application is described in further detail.

[0045] like Figure 1-3 As shown, a central cabinet secondary training device comprises a body 1, a secondary low-voltage chamber 2 arranged on the body 1, and an operating table 3 and a circuit breaker chamber 4 respectively arranged on different sides of the secondary low-voltage chamber 2, and a control system 6, wherein the circuit breaker chamber 4 comprises a secondary circuit breaker simulation tool 41 connected to the analog signal transmission end of the control system 6, and a circuit breaker 42 and a grounding switch 43 both connected to the operating table 3, the secondary circuit breaker simulation tool 41 is provided with a secondary test contact connected to the secondary low-voltage chamber 2, a first opening and closing control contact connected to the circuit breaker 42, and a second opening and closing control contact connected to the grounding switch 43, the control system 6 is used to transmit corresponding signals through any one or more of the secondary test contacts, the first opening and closing control contacts and the second opening and closing control contacts according to the acquired training content, thereby simulating the corresponding training circuit environment, and the signal acquisition end of the control system 6 is respectively connected to the secondary low-voltage chamber 2 and the operating table 3, so as to obtain the trainee's operation information, and then perform the corresponding feedback operation.

[0046] In this embodiment, this training device realizes the simulation and operation teaching of the secondary system of the central cabinet by organically combining multiple structural components. First of all, the body 1 provides structural support for the entire device. The secondary low-voltage chamber 2, as the core area of ​​​​the electrical components, connects the operating table 3, the circuit breaker chamber 4 and the control system 6, providing a platform for internal signal transmission and control of the system. As one of the core components, the secondary circuit breaker simulation tool 41 in the circuit breaker chamber 4 can replace the operation of the actual circuit breaker 42 through simulated signal transmission, reduce the risk of mechanical wear, and significantly reduce equipment costs. The secondary test contact and the two opening and closing control contacts are respectively connected to the secondary low-voltage chamber 2, the circuit breaker 42 and the grounding switch 43, ensuring smooth signal transmission between the various components.

[0047] The operating table 3 provides an interface for students to actually operate by directly connecting to the circuit breaker 42 and the grounding switch 43, so that students can achieve the trolley position conversion of the circuit breaker 42 and the operation of the grounding switch 43 through simple knobs and buttons, simulating the real operating environment of the central cabinet. The control system 6 plays a role of coordination and control. It not only collects students' operation information from the operating table 3 and the secondary low-voltage chamber 2, but also transmits corresponding signals through electrical contacts according to different training contents, thereby simulating the corresponding circuit environment. Through these precise signal transmissions, the control system 6 can provide real-time feedback on the students' operation results, ensure the safety and accuracy of the operation, and improve the efficiency and effect of the training. This linkage design can not only accurately simulate the operating principle of the central cabinet, but also reduce the loss of equipment, providing an economical, practical, safe and reliable solution for the training of relay protection and secondary principles.

[0048] In addition, the closing control contact is connected to the closing coil, and the control system 6 sends a closing command through these contacts to start the closing coil, thereby realizing the closing operation of the circuit breaker 42. The control system 6 will control the state of the contact according to the instructions of the operating console 3 or the preset program. The opening control contact is connected to the opening coil, and the control system 6 sends an opening signal through the contact to perform the opening operation of the circuit breaker 42. The control system 6 decides when to perform the opening operation according to the instructions of the operating console 3, the state of the protection contact or the simulated fault condition. The purpose of the circuit breaker 42 locking is to prevent the circuit breaker 42 from being operated, especially the closing operation, under unsafe or inappropriate conditions (such as the grounding switch 43 is closed). For example, if the grounding switch 43 is in a closed state, the circuit breaker 42 will be locked and cannot be closed to prevent misoperation when the equipment is energized. The locking of the grounding switch 43 is used to prevent the grounding switch 43 from being operated when the circuit breaker 42 is in a closed state. Usually, the grounding switch 43 can only be operated when the circuit breaker 42 is in the open state and the line is not energized to avoid grounding short circuit or equipment damage;

[0049] That is, the control system 6 simulates the actual power system operation environment through the secondary circuit breaker simulation tool 41, including the status and operation logic of the circuit breaker 42 and the grounding switch 43. Then, the trainee can perform actual operations on the circuit breaker 42 and the grounding switch 43 through the operation console 3, such as closing, opening, and opening and closing of the grounding switch 43. This setting combines actual operations with the simulation environment, allowing trainees to experience and master the operation skills of the actual power system in a safe environment, thereby achieving the purpose of practical training.

[0050] The operation process is as follows: transformer polarity detection; secondary shaking insulation; protection device current and voltage accuracy verification (using relay protection tester to add current and voltage verification); feeder phase-to-phase and zero-sequence overcurrent and quick-break test (using relay protection tester to add fault current to verify the correct operation of protection device and circuit breaker 42); feeder reclosing test (using relay protection tester to add fault current to verify the correct operation of protection device and circuit breaker 42, and the protection device and circuit breaker 42 can trip again when reclosing to a permanent fault); standby automatic transfer test, that is, manual tripping of incoming line circuit breaker 42 to lock out section circuit breaker 42 for automatic transfer; using relay protection tester to add fault current protection action to the incoming line, locking out the disconnection circuit breaker 42 for automatic transfer; using relay protection tester to add bus voltage to the section cabinet; lighting the charging lamp to simulate the loss of pressure on the bus side and the line side, and the protection device and circuit breaker 42 in the section cabinet for automatic transfer.

[0051] Preferably, the structure of the secondary training device of the central cabinet is divided into three compartments, a secondary low-voltage room 2, a circuit breaker room 4, a cable room 5, and an operating box. The secondary low-voltage room 2 can be installed with different secondary components according to different functions and design drawings, and can carry out relay protection tests and secondary insulation tests, etc., for trainees to carry out practical training operations. The circuit breaker room 4 contains a secondary circuit breaker simulation tool 41 and its opening and closing coils and resistors that match the circuit breaker 42. The secondary circuit breaker simulation tool 41 integrates the contacts of the circuit breaker 42 and the contacts of the grounding switch 43 into the wiring terminals of the device. The locking of the circuit breaker 42 and the grounding switch 43 can be set through the program, and the terminals of the circuit breaker 42 simulation tool are led to the 58-pin secondary aviation plug-in, and connected to the components of the secondary low-voltage room 2 through the plug-in, which is convenient and fast. The cable room 5 is installed with a current transformer to facilitate secondary personnel to recognize the transformer and perform accuracy verification and polarity testing on the transformer. The operating knob installed on the operating box can realize the conversion of the circuit breaker 42 trolley working position and the test position. The opening and closing of the grounding switch 43 and the circuit breaker 42 sneak trip simulation operation can be realized. Through this training device, you can learn the relationship between the secondary equipment and the primary equipment, how to control the primary equipment through the secondary equipment, and make the primary circuit run safely and stably. This device can be used to realize the training and assessment of secondary and relay protection tests;

[0052] The traditional central cabinet needs to use the circuit breaker 42 body to realize the opening and closing operation, which is expensive, the opening and closing mechanical linkage is fierce, the trolley test working position is frequently switched, and the mechanical parts are easily damaged. It is expensive, and it is difficult to achieve the purpose of training on site, which is not conducive to the practical training of secondary personnel and relay protection personnel. Due to the complexity of the secondary profession of the power system, secondary personnel need to conduct repeated experiments, understand the drawings and secondary components. Through the actual operation of this device, the purpose of combining theory with practice can be achieved, and the opening and closing of the central cabinet, energy storage, trolley test working position, grounding knife opening and closing, and microcomputer protection principles can be intuitively demonstrated and operated. At the same time, the device can also recognize the locking relationship between simple central cabinet components, and the price is cheap. It is capable of conducting secondary principle learning and relay protection test training according to different requirements; considering that the traditional central cabinet needs to use circuit breaker 42 body to realize opening and closing operations, which is expensive, the opening and closing mechanical linkage is violent, the noise is loud, the trolley test working position is frequently switched, and mechanical parts are easily damaged. The on-site environment and safety are not suitable for multiple trainees to operate and learn at the same time, it is necessary to design low-cost, safe and reliable, easy to operate, economical and practical equipment that can meet the secondary practical learning function of the central cabinet.

[0053] This solution significantly reduces the cost of training equipment by using a secondary circuit breaker simulation tool 41 to replace the traditional circuit breaker 42 body for opening and closing operations. Traditional center cabinets require the use of expensive circuit breakers 42 for frequent opening and closing operations, while the secondary circuit breaker simulation tool 41 in this design can complete the corresponding operations through simulated signal transmission, avoiding actual mechanical linkage, thereby reducing wear and damage to mechanical parts. In addition, the combination of the operating table 3 and the control system 6 enables trainees to easily switch the working position and test position of the trolley, ensuring the safety and operability of the training process. It not only improves the efficiency of training, but also reduces the loss of equipment in on-site training, thereby better meeting the training needs of secondary principle learning and relay protection testing. This design provides a safe, reliable, economical and practical solution, which solves the problems of high cost and severe mechanical loss of traditional center cabinet training equipment.

[0054] Specifically, the secondary test contact and the secondary low-pressure chamber 2 are connected via a secondary aviation plug-in.

[0055] In this embodiment, the secondary aviation plug-in is a multi-pin electrical connector used for connecting and transmitting signals in the power system, especially in the secondary circuit. It is mainly used to connect the control and signal interface of secondary equipment (such as relay protection devices, control systems 6, monitoring equipment) with switch cabinets, circuit breakers 42 and other primary equipment. This type of plug-in has the characteristics of fast connection, easy disconnection, many plug-in and unplug times, and good contact performance. It is widely used in the control and protection circuits of high-voltage switchgear.

[0056] The connection between the secondary test contact and the secondary low-voltage chamber 2 can be realized through the secondary aviation plug-in, which can greatly improve the connection stability and convenience of the equipment. The aviation plug-in design can provide more pin channels, so that multiple signals can be transmitted in parallel between the secondary low-voltage chamber 2 and other components, ensuring the transmission accuracy and speed of each signal. This connection method effectively reduces the complexity of wiring, while improving the overall performance and reliability of the equipment, ensuring the durability and signal transmission efficiency of the training equipment in long-term use.

[0057] In summary, the secondary aviation plug-in can realize multi-signal transmission through more pins, ensuring the diversity and stability of signal transmission between the secondary low-voltage chamber 2 and other components, thereby improving the efficiency of equipment connection and the accuracy of experimental signal transmission, and further ensuring the integrity of practical training operations.

[0058] Specifically, the secondary aviation plug-in has 58 pins.

[0059] In this embodiment, the 58-pin design of the secondary aviation plug-in can meet the complex signal and power transmission requirements. Each pin independently transmits a signal or power to ensure the multi-functional support of the system. The number of pins is sufficient to cope with various requirements such as control, signal feedback, and protection functions. This enables the system to manage the status information and operation instructions of multiple devices or components at the same time, thereby reducing the complex wiring process and effectively preventing signal interference. Through this design, the efficiency and stability of signal transmission can be greatly improved, further ensuring the reliable operation of the training device.

[0060] In summary, the 58-pin secondary aviation plug-in is used to connect secondary devices and primary devices, mainly to meet the needs of multiple control, signal feedback and protection functions, reduce wiring complexity, and ensure the reliability of signal transmission. Each pin is responsible for independently transmitting a signal or power supply, and the 58-pin provides enough channels to support complex control and protection systems.

[0061] Specifically, Figure 3 As shown, a cable chamber 5 is provided below the circuit breaker chamber 4, a mutual inductor is provided on the cable chamber 5, and at least a first training test contact connected to the control system 6 is provided on the mutual inductor, and the first training test contact is used to obtain in real time the user's training operation information of accuracy verification and polarity test on the mutual inductor.

[0062] In this embodiment, the control system 6 is responsible for processing the current signal transmitted from the current transformer, and monitoring, measuring, or triggering the relay protection action according to these signals. The signal output by the transformer will be input into the control system 6 for displaying the current reading or for other automation functions (such as protection logic, alarm triggering, etc.). Through the control system 6, the trainee can perform the accuracy check of the current transformer (by measuring the difference between the output current and the actual current) and the polarity test (ensuring that the wiring polarity of the transformer is correct), which is usually performed by the control system 6 for signal analysis and feedback. As the core component in the cable room 5, the transformer can interact with the control system 6 through the first practical training test contact, and monitor the accuracy check and polarity test operations performed by the trainee on the transformer during the practical training in real time. This design ensures that in the practical training operation, each step of the trainee's operation will be accurately recorded and fed back, ensuring the accuracy of the operation and the practical training effect. At the same time, through real-time data feedback, the trainee's operation can be analyzed and guided, helping the trainee to understand the function and working principle of the transformer more deeply.

[0063] To sum up, the mutual inductor installed on the cable room 5 has a first training test contact connected to the control system 6, which can obtain in real time the trainees' operation information for mutual inductor accuracy verification and polarity testing, thereby ensuring that the trainees' operation performance can be accurately monitored and recorded during the training process, further improving the comprehensiveness and accuracy of the training.

[0064] Specifically, the operating table 3 is provided with a circuit breaker operating knob and an earthing switch operating button. The circuit breaker operating knob is connected to the circuit breaker 42 to realize the conversion of the circuit breaker 42 trolley working position and the test position. The earthing switch 43 operating knob is connected to the earthing switch 43 to realize the opening and closing of the earthing switch 43 and the circuit breaker 42 tripping simulation operation.

[0065] In this embodiment, the circuit breaker operation knob on the operating table 3 is designed to be directly connected to the circuit breaker 42, and the trainee can easily complete the conversion of the working position and the test position of the circuit breaker 42 trolley by operating the knob. This design not only increases the convenience and flexibility of operation, but also enhances the safety of operation, especially in the training environment where the circuit breaker 42 is frequently operated. In addition, the design of the grounding switch 43 operating knob can simulate the opening and closing operation of the grounding switch 43 and the simulation of the circuit breaker 42 tripping, providing a variety of training scenarios, allowing trainees to experience more diverse operating procedures.

[0066] In summary, the circuit breaker operating knob on the operating table 3 is connected to the circuit breaker 42, which can realize the conversion of the trolley working position and the test position of the circuit breaker 42, so that the trainees can switch the normal or test state of the circuit breaker 42 by operating the knob, thereby improving the operational flexibility and the realism of the training, and helping the trainees to become familiar with the actual operation process of the circuit breaker 42.

[0067] Specifically, the circuit breaker operation knob is provided with a second training test contact connected to the control system 6 , and the second training test contact is used to obtain the training operation information of the user operating the circuit breaker 42 in real time.

[0068] In this embodiment, the second training test contact provided on the circuit breaker operation knob can obtain various information when the trainee operates the circuit breaker 42 in real time, and these operation data will be directly transmitted to the control system 6 for analysis. By collecting the trainee's operation data in real time, the system can generate corresponding feedback according to each operation of the trainee, ensuring that each step in the training process can be accurately monitored and guided, thereby further improving the trainee's operation level and understanding of the actual operation process of the circuit breaker 42.

[0069] In summary, a second training test contact is provided on the circuit breaker operation knob, which can obtain the trainee's operating information of the circuit breaker 42 in real time, so that the control system 6 can accurately feedback the working status of the circuit breaker 42 according to the trainee's operating behavior, thereby improving the training effect of the trainee's operating skills and ensuring the integrity of data records during the training process.

[0070] Specifically, Figure 1 As shown, the grounding switch 43 knob is provided with a third training test contact connected to the control system 6 , and the third training test contact is used to obtain the training operation information of the user operating the grounding switch 43 in real time.

[0071] In this embodiment, the third training test contact provided on the knob of the grounding switch 43 can record each operation of the trainee on the grounding switch 43, ensuring that the control system 6 can monitor and analyze these operations in real time. By obtaining these operation information, the system can provide accurate feedback on the trainee's grounding operation, ensuring the safety and correctness of each operation. Through such a design, it can effectively help trainees understand the role of the grounding switch 43 and improve their safety awareness and technical level during operation.

[0072] To sum up, a third training test contact is provided on the knob of the grounding switch 43, which can obtain the operation information of the trainee operating the grounding switch 43 in real time, ensuring that each operation of the trainee can be timely monitored and analyzed by the control system 6, thereby ensuring the safety of the operation of the grounding switch 43 and the effective training of the grounding operation in the training, and improving the safety and accuracy of the operation.

[0073] Specifically, the secondary low-voltage chamber 2 is provided with a plurality of different secondary components, and the secondary components are provided with a first acquisition contact connected to the signal acquisition end of the control system 6. When the trainee operates through the operating platform 3, the first acquisition contact is used to send the secondary low-voltage chamber 2 feedback signal generated after the operation of the operating platform 3.

[0074] In this embodiment, the control system 6 transmits signals through the contacts of the secondary circuit breaker simulation tool 41 to simulate the operating status of devices such as the circuit breaker 42 and the grounding switch 43. This signal transmission helps create a training circuit close to the real operating environment, including closing, opening and locking operations. The contacts on the simulation tool are used to connect different devices or systems, such as the control system 6, the secondary low-voltage chamber 2 and other relay protection equipment; the secondary low-voltage chamber 2 is usually equipped with different secondary components for relay protection testing, secondary insulation testing, etc. These components are directly connected to the control system 6, and the control system 6 realizes various test functions by monitoring and controlling these components. In this case, you are testing through the connection between the secondary low-voltage room 2 and the control system 6. For example, when you test the relay protection equipment in the secondary low-voltage room 2, the control system 6 will send and receive signals to simulate the protection function in the actual circuit environment; the secondary circuit breaker simulation tool 41 integrates the contacts of the circuit breaker 42 and the contacts of the grounding switch 43 to simulate the working state of the circuit breaker 42 and the grounding switch 43 in the real environment. When the secondary circuit breaker simulation tool 41 is connected to the secondary low-voltage room 2, the control system 6 transmits signals through the contacts of the simulation tool, so that the whole system can simulate a more complex circuit environment. In this case, the control system 6 still plays a core control role, but the signal is transmitted through the connection between the secondary circuit breaker simulation tool 41 and the secondary low-voltage room 2. In this way, the linkage relationship between the operation of the circuit breaker 42 and the relay protection function can be simulated.

[0075] The multiple secondary components installed in the secondary low-voltage chamber 2 are connected to the signal acquisition terminal of the control system 6 through the first acquisition contact, and can transmit the operation signals performed by the trainees on the operating table 3 in real time. These signals will be collected and fed back to the system in a timely manner to ensure that the results of each operation can be accurately captured and recorded by the system. This design not only improves the trainees' perception and feedback efficiency of practical training operations, but also provides more comprehensive data information for subsequent operation analysis, helping trainees better understand the operating logic of the secondary circuit.

[0076] To sum up, multiple secondary components are installed in the secondary low-voltage chamber 2, and the components are connected to the signal acquisition end of the control system 6, so that the trainee's operation signal can be obtained in real time through the first acquisition contact, so that the feedback signal generated by the trainee during the operation can be effectively collected and analyzed, thereby improving the system's real-time response and feedback effect on the trainee's operation, and helping the trainees to better understand the working principle of the secondary circuit in practical training.

[0077] Specifically, Figure 4 As shown, a training method based on a secondary training device for a central cabinet is applied to a secondary training device for a central cabinet, and the training control method includes:

[0078] S10, obtaining training content, and determining key components and a training status data set of the key components according to the training content;

[0079] In this embodiment, the training content usually includes simulation of the circuit breaker 42 control, grounding switch 43 operation, and other key components involved in the actual operation. These contents may cover multiple scenarios, such as normal operation, fault handling, emergency drills, etc. By acquiring the training content, the system can analyze the components that currently need to be operated, and record their status and expected operation results, thereby providing a reference basis for subsequent steps. Key components refer to electrical equipment such as circuit breakers 42 and grounding switches 43 that play a key role in actual operation. Their status data sets include the opening and closing status of the equipment, electrical connections, and feedback signals of various operations. Through these data sets, the system can track the status of components in real time and determine whether the operation is correct.

[0080] S20, determining the transmission path between the secondary circuit breaker simulation tool 41 and each of the key components, and determining the electrical contacts of the secondary circuit breaker simulation tool 41 according to the transmission path, wherein the electrical contacts include a secondary test contact, a first opening and closing control contact, and a second opening and closing control contact;

[0081] In this embodiment, the transmission path refers to the electrical connection lines from the secondary circuit breaker simulation tooling 41 to each key component, which are used to transmit simulation signals and feedback information. To achieve this transmission, the system needs to identify the function and position of each electrical contact. The secondary test contact serves as an interface connected to the secondary low-voltage chamber 2, and is used to test the transmission of different electrical signals; and the first opening and closing control contact and the second opening and closing control contact are respectively connected to the circuit breaker 42 and the grounding switch 43, and are used to control the opening and closing operations of the circuit breaker 42 and the closing and disconnection of the grounding switch 43. By determining these contacts, the system can establish a complete signal transmission network to ensure that each component can receive the correct control signal.

[0082] S30, determining simulation signal parameters according to the training state data set, and sending the simulation signal parameters to key components through corresponding electrical contacts;

[0083] In this embodiment, the simulation signal parameters include parameters such as voltage, current, and switch status, which are consistent with the status of the circuit breaker 42 or the grounding switch 43 in actual operation. Through the electrical contacts on the secondary circuit breaker simulation tooling 41, the system can send these signals to key components, thereby simulating the real electrical control process without performing actual operations. For example, when the circuit breaker 42 needs to perform an opening and closing operation, the system will generate a corresponding simulation signal, which will be transmitted to the circuit breaker 42 through the opening and closing control contacts to simulate its operating state. In this way, trainees can experience feedback and responses consistent with actual operations on the operating console 3, thereby improving the realism and effectiveness of the training.

[0084] S40, obtaining operation information of the operation console 3 and feedback information of each of the key components, and performing corresponding feedback operations according to the operation information and feedback information, wherein the feedback operations at least include status warning operations.

[0085] In this embodiment, the operation information includes each operation step performed by the trainee on the operating platform 3, such as the opening and closing operation of the circuit breaker 42, the closing and disconnection of the grounding switch 43, etc., and the feedback information is the actual state return signal of the key components. These information are collected by the control system 6, and the operation is judged to be correct according to the predetermined logic. If there is an error or abnormality in the operation, the system will perform the corresponding feedback operation, and the feedback operation at least includes the state warning operation, such as reminding the trainee of the operation error through an indicator light or a buzzer, or displaying an error message prompt on the screen. In addition, the system can also generate a report based on the operation situation to help the trainee understand the problems in the operation and make improvements. This real-time feedback mechanism not only improves the trainee's operating skills, but also enhances the safety and effectiveness of the training.

[0086] In this embodiment, by obtaining the training content and determining the key components and their training status data set, the system can simulate different training scenarios according to the actual needs of the trainees. By determining the transmission path between the secondary circuit breaker simulation tooling 41 and the key components, the system can accurately calculate the signal transmission path between different devices, thereby generating corresponding electrical contacts. By obtaining the trainee's operation information and the feedback information of the equipment in real time, the control system 6 can make corresponding feedback according to the actual operation situation, ensuring that the trainees can obtain comprehensive guidance and operation prompts during the training process, and further improving the effect of the training.

[0087] To sum up, by obtaining the training content and determining the training status data set of key components through the control system 6, the corresponding equipment operation status and operation process can be effectively simulated according to the training needs, thereby improving the pertinence and accuracy of the training process, and ensuring that trainees can experience the operation response of real equipment in a simulated environment; according to the transmission path between the secondary circuit breaker simulation tooling 41 and the key components, the electrical contacts are determined, and the simulation signal is generated according to the transmission path and the equipment status. It is possible to generate accurate signal transmission parameters according to the actual transmission path of the equipment, thereby effectively improving the stability and accuracy of the signal transmission, and ensuring that every operation and state change in the training can be accurately simulated and responded to.

[0088] Specifically, Figure 5 As shown, the step of determining the simulation signal parameters according to the training state data set, that is, the step S30, includes:

[0089] S301, extracting at least the running state feature, the state cycle feature and the signal strength feature from the training state data set;

[0090] In this embodiment, at least the operating state characteristics, state cycle characteristics and signal strength characteristics in the training state data set are extracted in order to analyze the actual working state of each key component in the system. Specifically, the operating state characteristics refer to the current state information of key components in different operation scenarios, such as whether the circuit breaker 42 is in the open or closed state, whether the grounding switch 43 is in the closed state, etc. The state cycle characteristics refer to the frequency and periodicity of the state change of the equipment during operation, such as the cycle of multiple opening and closing operations of the circuit breaker 42 in a short time. The signal strength characteristic refers to the strength of the control signal transmitted to the device, which is affected by the length of the electrical path between the equipment and the simulation tooling and the interference. By extracting these features, the system can fully grasp the dynamic changes and working environment of each key component, and provide an accurate basis for the subsequent simulation signal generation.

[0091] S302, generating a first simulation parameter for determining the operating state of a key component according to the operating state characteristics;

[0092] In this embodiment, the first simulation parameter for determining the operating state of key components is generated according to the operating state characteristics in order to accurately simulate the current working state of key components. Specifically, the operating state characteristics reflect the actual operating state of the equipment, such as whether the circuit breaker 42 is currently in the open or closed state, whether the grounding switch 43 is in the closed operating position, etc. According to these states, the system will generate corresponding first simulation parameters for controlling the simulated tooling of the equipment so that it exhibits a state consistent with the real equipment. This process can ensure that when the trainees operate the equipment during training, the feedback obtained is consistent with the operating state of the equipment in the real environment, thereby improving the authenticity and practicality of the training. For example, when the circuit breaker 42 is in the open state, the first simulation parameter will adjust the signal of the simulated tooling accordingly so that it exhibits the same open state, ensuring the accuracy of the trainees' operational feedback.

[0093] S303, generating a second simulation parameter for determining the duration and frequency of the operation state of the key components according to the state cycle characteristics;

[0094] In this embodiment, the second simulation parameter for determining the duration and continuous frequency of the operating state of key components is generated according to the state cycle characteristics in order to simulate the law of state changes of the equipment during operation. Specifically, the state cycle characteristics describe the frequency and duration of changes in the operating state of the equipment over a period of time, such as the interval time and frequency of multiple opening and closing operations of the circuit breaker 42 during long-term operation. The system generates the second simulation parameters based on these periodic characteristics to simulate the operating laws of key components. By simulating the duration and frequency, the system can reproduce the state changes that may occur in the equipment during long-term operation, helping trainees to master the performance of the equipment under different operating cycles. For example, in training, if the circuit breaker 42 needs to perform multiple opening and closing operations within a certain period of time, the second simulation parameters will ensure that the frequency and time intervals of these operations are consistent with the operation in the real scene.

[0095] S304, generating a third simulation parameter for determining the signal strength required for transmission to the key components according to the signal strength characteristic, wherein the signal strength characteristic is determined according to the path length and / or path interference type between the key components and the secondary circuit breaker simulation tooling 41;

[0096] In this embodiment, the third simulation parameter for determining the signal strength required for transmission to key components is generated based on the signal strength characteristics in order to ensure that the control signal will not be attenuated due to distance or interference during the transmission process. Specifically, the signal strength characteristics are determined by the transmission path length and path interference type between the device and the simulation tooling. For example, if the path is long or the interference is strong, the transmitted signal may need to be enhanced to ensure that the key components can accurately receive the control signal. Therefore, the third simulation parameter adjusts the signal strength according to the path length and interference conditions to ensure that the signal can remain stable and reliable in a complex electrical environment. This adjustment not only improves the sensitivity of the training equipment, but also enhances the accuracy of the simulated operation during training.

[0097] S305 , integrating the first simulation parameter, the second simulation parameter and the third simulation parameter to generate corresponding simulation signal parameters.

[0098] In this embodiment, the integration of the first simulation parameter, the second simulation parameter and the third simulation parameter to generate the corresponding simulation signal parameters is to generate the final control signal, ensuring that the system can fully and accurately simulate the working state of key components. Specifically, the first simulation parameter reflects the current state of the key component, the second simulation parameter represents the cycle and duration of its state change, and the third simulation parameter ensures that the intensity of the signal during transmission is sufficient to cover the required distance and resist interference. By integrating these simulation parameters, the system can generate a comprehensive simulation signal to control the simulation tooling of the equipment so that it exhibits a working state consistent with the actual equipment. This process not only improves the simulation effect of the equipment, but also provides a more realistic operating experience for the trainees. For example, when the trainee performs the closing operation of the circuit breaker 42 on the operating console 3, the system will integrate various parameters to generate a suitable signal so that the simulation tooling accurately exhibits the closing state and provides the necessary duration and feedback signal according to the cycle characteristics.

[0099] In this embodiment, by extracting and analyzing the operating state characteristics, periodic characteristics, and signal strength characteristics in the training state data set, the system can generate corresponding simulation signal parameters for different components. The first simulation parameter is used to determine the actual operating state of the component, the second simulation parameter determines the duration and frequency of the operating state, and the third simulation parameter ensures that the signal strength can adapt to various changes in the transmission path. This multi-dimensional parameter integration generates a more accurate simulation signal, ensuring that during the training process, the system can provide accurate feedback and signal transmission according to different operating scenarios, thereby enhancing the realism and effect of the training.

[0100] In summary, by extracting operating status characteristics, status cycle characteristics and signal strength characteristics to generate simulation signal parameters, the accuracy of the signal can be ensured through multi-dimensional data analysis, so that the system can flexibly adjust the signal strength and transmission time according to different training needs, thereby improving the accuracy of the simulation signal and ensuring that trainees receive accurate feedback during operation.

[0101] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A secondary training device for a central cabinet, characterized in that: The invention comprises a machine body (1), a secondary low-voltage chamber (2) arranged on the machine body (1), an operating table (3) and a circuit breaker chamber (4) respectively arranged on different sides of the secondary low-voltage chamber (2), and a control system (6), wherein the circuit breaker chamber (4) comprises a secondary circuit breaker simulation tool (41) connected to an analog signal transmission end of the control system (6), and a circuit breaker (42) and an earthing switch (43) both connected to the operating table (3), and the secondary circuit breaker simulation tool (41) is provided with a secondary test contact connected to the secondary low-voltage chamber (2), and a circuit breaker (42) and an earthing switch (43) connected to the operating table (3). The control system (6) is used to transmit corresponding signals through any one or more of the secondary test contacts, the first opening and closing control contacts and the second opening and closing control contacts according to the acquired training content, thereby simulating the corresponding training circuit environment. The signal acquisition end of the control system (6) is respectively connected to the secondary low-voltage room (2) and the operating table (3) to obtain the trainee's operation information and then perform the corresponding feedback operation.

2. A secondary training device for a central cabinet according to claim 1, characterized in that: The secondary test contact point is connected to the secondary low-pressure chamber (2) via a secondary aviation plug-in.

3. A secondary training device for a central cabinet according to claim 2, characterized in that: The secondary aviation plug-in has 58 pins.

4. The secondary training device for a central cabinet according to claim 1 is characterized in that: A cable chamber (5) is provided below the circuit breaker chamber (4), a mutual inductor is provided on the cable chamber (5), and at least a first training test contact point connected to the control system (6) is provided on the mutual inductor, the first training test contact point being used to obtain in real time training operation information of a user performing accuracy calibration and polarity testing on the mutual inductor.

5. The secondary training device for a central cabinet according to claim 1 is characterized in that: The operating table (3) is provided with a circuit breaker operating knob and a grounding switch operating button. The circuit breaker operating knob is connected to the circuit breaker (42) to realize the conversion of the circuit breaker (42) trolley working position and the test position. The grounding switch (43) operating knob is connected to the grounding switch (43) to realize the opening and closing of the grounding switch (43) and the circuit breaker (42) tripping simulation operation.

6. The secondary training device for a central cabinet according to claim 5 is characterized in that: The circuit breaker operation knob is provided with a second training test contact connected to the control system (6), and the second training test contact is used to obtain training operation information of a user operating the circuit breaker (42) in real time.

7. The secondary training device for a central cabinet according to claim 5 is characterized in that: The grounding switch (43) knob is provided with a third training test contact connected to the control system (6), and the third training test contact is used to obtain training operation information of the user operating the grounding switch (43) in real time.

8. The secondary training device for a central cabinet according to claim 1 is characterized in that: The secondary low-pressure chamber (2) is provided with a plurality of different secondary components, and the secondary components are provided with a first acquisition contact connected to a signal acquisition end of the control system (6). When a trainee operates through the operating table (3), the first acquisition contact is used to send a feedback signal of the secondary low-pressure chamber (2) generated after the operation of the operating table (3).

9. A training method based on a secondary training device for a central cabinet, applied to a secondary training device for a central cabinet as claimed in any one of claims 1 to 8, characterized in that: The training method includes: Acquire training content, and determine key components and a training status data set of the key components according to the training content; Determine the transmission path between the secondary circuit breaker simulation tooling and each of the key components, and determine the electrical contacts of the secondary circuit breaker simulation tooling according to the transmission path, wherein the electrical contacts include a secondary test contact, a first opening and closing control contact, and a second opening and closing control contact; Determine analog signal parameters according to the training state data set, and send the analog signal parameters to key components through corresponding electrical contacts; The operation information of the operation console and the feedback information of each of the key components are obtained, and corresponding feedback operations are performed according to the operation information and the feedback information, wherein the feedback operations at least include status warning operations.

10. A training method based on the secondary training device of the central cabinet according to claim 9, characterized in that: The step of determining the simulation signal parameters according to the training state data set includes: At least extracting the running state feature, the state cycle feature and the signal strength feature from the training state data set; generating a first simulation parameter for determining the operating state of a key component according to the operating state characteristics; According to the state cycle characteristics, generating a second simulation parameter for determining the duration and frequency of the operation state of the key components; generating a third simulation parameter for determining the signal strength required for transmission to the key components according to the signal strength characteristic, wherein the signal strength characteristic is determined according to the path length and / or path interference type between the key components and the secondary circuit breaker simulation tooling; The first simulation parameter, the second simulation parameter and the third simulation parameter are integrated to generate corresponding simulation signal parameters.

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