Digital relay protection simulation training system
By designing a digital relay protection simulation training system, the problems of high cost and insufficient safety in traditional training have been solved, achieving safe and economical practical training results and improving trainees' operational skills and coping abilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-03-10
AI Technical Summary
In traditional relay protection practical training, the functions of decommissioned protection devices are limited and there is a large gap between them and the actual equipment on site, resulting in high training costs and insufficient safety, which cannot meet the practical needs of trainees.
Design a digital relay protection simulation training system, including a cabinet, system simulation components and relay protection device components. It uses simulated circuit breakers, terminal blocks and touch screens to simulate the actual operating environment, and supports line protection, transformer protection and bus protection, etc. The system diagram is drawn by programming through the touch screen to realize the action simulation.
It achieves safe and reliable hands-on training, reduces costs, improves trainees' operational skills and ability to deal with emergencies, meets practical needs, has a reasonable structural design, is easy to operate, and is economical and practical.
Smart Images
Figure CN223986356U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to relay protection practical operation training technical field, and specifically is a kind of digital relay protection simulation training system. BACKGROUND
[0002] Relay protection practical operation training is a kind of practical operation skill training activities for personnel engaged in power system relay protection related work.In training, usually let students in simulated or actual power equipment environment, carry out the installation, debugging, testing, troubleshooting and processing of relay protection device actual operation.Through such training, students can more deeply understand and master the principle, process and operation skill of relay protection, improve the actual work ability and the ability to deal with emergency, ensure that in actual work can correctly, efficiently complete relay protection task, guarantee the safe and stable operation of power system.
[0003] Traditional relay protection practical operation training, in order to ensure the safety of students and distribution equipment, do not hinder the normal operation of power system, adopt retired protection device to simulate operation, since these practical operation functions are relatively single, and the actual equipment is far apart, cannot meet the practical operation test needs of students, and the construction of training base needs special site and equipment, and the investment cost is high. INVENTION CONTENTS
[0004] The utility model solves the technical problem mentioned in the above background art, provides a kind of digital relay protection simulation training system, realizes for actual simulation power distribution system operation mode, meets practical operation demand, simultaneously corresponding simulation system diagram, intuitively clear understanding protection action situation, let students form the concept of system operation.
[0005] The technical scheme provided by the utility model is as follows: a kind of digital relay protection simulation training system, comprising:
[0006] Cabinet, all components are installed on cabinet, the front of cabinet is equipped with glass door, door shaft is in right side, glass door is fixed with door handle, its bottom is installed with universal wheel;
[0007] System simulation assembly installed on cabinet, system assembly includes by 1QF 1n device power air switch, 1n analog circuit breaker, 1n terminal block and touch screen, the JD of 1n terminal block is through 1QF 1n device power air switch to 1n analog circuit breaker, provides device power for it;
[0008] Relay protection device assembly installed on cabinet, relay protection device assembly includes by 2n relay protection device, 2QF 2n device power air switch and 1n terminal block, the ZD of 1n terminal block is electrically connected to 2n relay protection device through 2QF 2n device power air switch, provides device power for it;
[0009] Furthermore, the system simulation component also includes electrical connections between the input and output of the 1n analog circuit breaker and the 1QD and 1XT terminals of the 1n terminal block.
[0010] Furthermore, the relay protection device assembly also includes an ID terminal block of the 2n terminal block electrically connected to the 2n relay protection device to provide it with current input; the UD terminal block of the 2n terminal block is electrically connected to the 2n relay protection device via the voltage circuit breakers of bus 1 and bus 2 of the 2ZKK bus to provide it with bus voltage input; and the 2n relay protection device is electrically connected to the 2CD terminal block of the 2n terminal block to provide it with protection action output.
[0011] Furthermore, the relay protection device assembly also includes an electrical connection between 2CD of the 2n terminal block and 1QD of the 1n terminal block to provide trip and close outputs; and an electrical connection between 2QD of the 2n terminal block and 1XT of the 1n terminal block to provide circuit breaker open and close position inputs.
[0012] Furthermore, the cabinet panel has two holes, an upper hole and a lower hole. The simulated circuit breaker is fixedly installed in the upper hole of the cabinet, the relay protection device is installed in the lower hole, and the terminal blocks are fixedly installed on the left and right sides of the cabinet, respectively.
[0013] Furthermore, the touch screen is fixedly installed on the upper surface of the simulated circuit breaker enclosure.
[0014] The advantages of this utility model compared to existing technologies are as follows: 1. It has a reasonable structural design, is easy to operate, safe and reliable, and economical and practical; 2. The relay protection device can be flexibly configured as line protection, transformer protection, busbar protection, automatic transfer switch protection, etc., and can be programmed through a touch screen to draw the circuit, transformer, busbar and other primary system simulation diagrams, and circuit breaker opening and closing, failure buttons, simulating the actual operation of the circuit breaker; 3. The simulated circuit breaker has 6 inputs and outputs, and can simulate 2 groups of single-phase circuit breakers or 6 groups of three-phase circuit breakers, which can meet the needs of relay protection practical training; 4. Various faults can be flexibly set to improve trainees' fault finding and handling capabilities. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the relay protection simulation training system according to an embodiment of the present utility model;
[0016] Figure 2 This is a rear view schematic diagram of the relay protection simulation training system according to an embodiment of the present utility model;
[0017] Figure 3 This is a schematic diagram of the control circuit logic of the relay protection simulation training system according to an embodiment of this utility model;
[0018] In the attached diagram: 1. Cabinet; 2. 1n analog circuit breaker; 3. 2n relay protection device; 4. 1QF 1n device power supply circuit breaker; 5. 2QF 2n device power supply circuit breaker; 6. 1ZKK bus 1 voltage circuit breaker; 7. 2ZKK bus 2 voltage circuit breaker; 8. 1n terminal block; 9. 2n terminal block; 10. Casters; 11. Touch screen; 12. Glass door; 13. Door hinge; 14. Door handle. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings.
[0020] Combination Figure 1 , Figure 2 As shown, a digital relay protection simulation training system includes a system simulation section, a relay protection device section, and a cabinet section.
[0021] In this embodiment, the AC input is connected to JD of terminal block 8, and then connected to the 1n analog circuit breaker 2 via 1QF4; the DC input is connected to ZD of terminal block 8, and then connected to the 2n relay protection device 3 via 2QF 2n device power circuit breaker 5; the 1n analog circuit breaker 2 and the 2n relay protection device 3 are connected via terminal block 8 and terminal block 9, completing the operation and protection opening and closing process of the 1n analog circuit breaker 2;
[0022] The ID pin of 2n terminal block 9 is connected to the current output of the microprocessor protection calibrator; the UD pin of 2n terminal block 9 is connected to the voltage output of the microprocessor protection calibrator; the input and output pins of the microprocessor protection calibrator are connected to the 1XT pin of 1n terminal block 8 and the 2QD pin of 2n terminal block 9 to complete the training task of verifying and eliminating faults in the relay protection device.
[0023] The cabinet is made of galvanized steel sheet, which makes it easy to move, and the casters 10 have locking switches.
[0024] Figure 1 The diagram shown is a front view of an embodiment of the present invention, including a simulated circuit breaker and a relay protection device on the upper part of the panel. The top row consists of a glass door 12, a door hinge 13, a simulated circuit breaker 2 (1n), a touch screen 11, a relay protection device 3 (2n), a door handle 14, and a caster wheel 10.
[0025] Figure 2 The diagram shown is a rear structural diagram of this utility model, including a cabinet 1, a 1QF 1n device power circuit breaker 4, a 2QF 2n device power circuit breaker 5, a 1ZKK bus 1 voltage circuit breaker 6, a 2ZKK bus 2 voltage circuit breaker 7, a 1n terminal block 8, a 2n terminal block 9, and a caster wheel 10.
[0026] Figure 3The diagram shows the control loop logic, which includes a visualization module (simulated circuit breaker), a protection module (line protection device and main transformer protection device), and a power supply module (DC power supply and AC power supply). The line is connected to the DC power supply and AC power supply through wires, and is connected to the closing mechanism and tripping mechanism in the simulated circuit breaker through the output circuit of the protection device to start the simulated circuit breaker and realize the entire logic action process.
[0027] The power supply box proposed in this invention has a reasonable structural design, is easy to operate, safe and reliable, and is economical and practical. In use, simply push the relay protection simulation training system to the application site and connect the circuit.
[0028] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A digital relay protection simulation training system, characterized in that, It includes: The cabinet body (1), all parts are installed on the cabinet body (1), the front of the cabinet body (1) is provided with a glass door (12), the door shaft (13) is on the right side, the glass door is fixed with a door handle (14), and the bottom is provided with universal wheels (10); The system simulation assembly installed on the cabinet body (1) includes 1QF 1n device power air switch (4), 1n analog circuit breaker (2), 1n terminal block (8) and touch screen (11), the JD of the 1n terminal block (8) is connected to the 1n analog circuit breaker (2) through the 1QF 1n device power air switch (4), and the device power supply is provided; The relay protection device assembly installed on the cabinet body (1) includes 2n relay protection device (3), 2QF 2n device power air switch (5) and 1n terminal block (8), the ZD of the 1n terminal block (8) is electrically connected to the 2n relay protection device (3) through the 2QF 2n device power air switch (5), and the device power supply is provided.
2. The digital relay protection simulation training system according to claim 1, characterized in that: The system simulation assembly further includes the incoming and outgoing of the 1n analog circuit breaker (2) and the 1QD and 1XT of the 1n terminal block (8).
3. The digital relay protection simulation training system of claim 1, wherein: The relay protection device assembly further includes the ID of the 2n terminal block (9) electrically connected to the 2n relay protection device (3), which provides current input; the UD of the 2n terminal block (9) is electrically connected to the 2n relay protection device (3) through the 1ZKK bus 1 voltage air switch (6) and the 2ZKK bus 2 voltage air switch (7), which provides bus voltage input; the 2n relay protection device (3) is electrically connected to the 2CD of the 2n terminal block (9), which provides protection action output.
4. The digital relay protection simulation training system according to claim 3, characterized in that: The relay protection device assembly further includes the 2CD of the 2n terminal block (9) and the 1QD of the 1n terminal block (8), which provides jump and closing output; the 2QD of the 2n terminal block (9) and the 1XT of the 1n terminal block (8) are electrically connected, which provides circuit breaker opening and closing position input.
5. The digital relay protection simulation training system of claim 1, wherein: The cabinet body (1) is divided into two holes, the analog circuit breaker (2) is fixedly installed in the upper hole of the box body, the 2n relay protection device (3) is installed in the lower hole, and the 1n terminal block (8) and the 2n terminal block (9) are respectively fixedly installed on the left and right sides of the cabinet body (1).
6. The digital relay protection simulation training system of claim 1, wherein: The touch screen (11) is fixedly installed on the upper surface of the analog circuit breaker (2) box body.