Test bench and practical training device

Abstract

The application discloses a test platform and practical training device, and relates to the technical field of electrical control, wherein the test platform comprises a mounting frame, fixing members and a comprehensive automation protection device; the mounting frame is formed with a mounting frame opening, and the peripheral edge of the mounting frame opening is provided with a plurality of mounting grooves; the fixing members comprise two fixing plates, each fixing plate is arranged in a mounting groove, and the two fixing plates are arranged at intervals; an installation space is formed between the two fixing plates; the comprehensive automation protection device is installed on the mounting frame through the two fixing plates and is located in the installation space; according to the technical scheme provided in the application, the test platform can not only conveniently and quickly adapt to the installation and fixation of protection devices of different sizes and brands, but also can realize the simulation debugging of the comprehensive automation protection device and the control and protection of actual switch devices.

Description

Technical Field

[0001] This application relates to the field of electrical control technology, and in particular to a test bench and training device. Background Technology

[0002] Integrated automation protection devices are core components of traction substations / distribution stations, integrating protection, measurement and control, and communication. They provide real-time sampling of the operating status of primary equipment such as circuit breakers, main transformers, and feeders, fault diagnosis, and millisecond-level tripping, ensuring safe, reliable, and intelligent operation of the railway power supply system. With the rapid development of railways, the requirements for power supply quality are constantly increasing. The commissioning of integrated automation protection devices in substations is a core element of the professional skills and competence of substation maintenance personnel.

[0003] Because the existing integrated automation equipment in the station is highly automated, maintenance personnel rarely perform hands-on operation and maintenance on a daily basis. There is a lack of relevant training equipment and facilities. When conducting practical training for maintenance personnel, the integrated automation protection device is placed haphazardly on the table, making debugging very inconvenient and failing to simulate the actual installation scenario of the integrated automation protection device. Utility Model Content

[0004] This application proposes a test bench and training device, which aims to provide a test bench that can fix integrated automation protection devices and can be adapted to integrated automation protection devices of different brands and sizes.

[0005] One embodiment of this application provides a test bench, including: The mounting bracket has a mounting frame opening, and the periphery of the mounting frame opening is provided with multiple mounting slots; The fastener includes two fixing plates, each fixing plate being disposed in a mounting groove, the two fixing plates being spaced apart, and an installation space being formed between the two fixing plates; The integrated automated protection device is mounted on the mounting frame via two fixing plates and is located within the mounting space.

[0006] In one embodiment, each of the fixing plates extends along the first direction, and the fixing plate is provided with a plurality of mounting holes, which are spaced apart along the first direction. The edge of the integrated automated protection device is provided with a first bolt, which is threadedly connected to the mounting hole.

[0007] In one embodiment, each of the fixing members has a second bolt at both ends, and the fixing member is detachably disposed in the mounting groove by means of the second bolt.

[0008] In one embodiment, the test bench further includes a simulated circuit breaker, which is mounted on the mounting frame and electrically connected to the integrated automation device for conducting simulated debugging; The integrated automated protection device is electrically connected to the simulated circuit breaker, and the integrated automated protection device is used to control the opening and closing of the simulated circuit breaker.

[0009] In one embodiment, the mounting bracket is provided with a wire-passing structure, the wire-passing structure forming a wire-passing groove, the wire-passing groove extending along the first direction.

[0010] In one embodiment, the test bench further includes a base, the mounting bracket is mounted on the base, and the base has a plurality of casters on the side facing away from the mounting bracket.

[0011] In one embodiment, the test bench further includes a communication management unit, which is disposed on the mounting frame.

[0012] In one embodiment, the mounting bracket and the two fixing plates are made of stainless steel.

[0013] One embodiment of this application also provides a test bench, comprising: The mounting bracket has a mounting frame opening, and the mounting frame opening has sliding grooves on opposite sides of its periphery. The fastener includes two fixing plates, each fixing plate having its two ends slidably limited in a sliding groove, the two fixing plates being spaced apart, and an installation space being formed between the two fixing plates; The integrated automated protection device is mounted on the mounting frame via two of the aforementioned fixing plates and is located within the mounting space; The two fixing plates are configured to slide within the groove and lock at any position.

[0014] An embodiment of this application also proposes a training device, which includes the test bench described above.

[0015] This application provides several embodiments of a test bench and training device. Two types of test benches are proposed. The first test bench includes a mounting frame, fasteners, and an integrated automated protection device. The mounting frame forms a mounting opening with multiple mounting slots around its perimeter. Two fixing plates in the fasteners are installed through these slots and can be switched between them to adjust the distance between the two fixing plates. By adjusting the distance between the two fixing plates, the size of the installation space is adjusted, allowing it to accommodate integrated automated protection devices of different brands and sizes. In another embodiment, sliding grooves are provided on both sides of the mounting frame opening instead of the mounting slots in the first embodiment. This allows the two fixing plates to slide on the sliding grooves and lock at any position on the grooves to adjust their distance, thus accommodating integrated automated protection devices of different brands and sizes. The test bench proposed in this application not only enables the installation and fixation of integrated automated protection devices, simulating actual installation scenarios, but also adapts to the installation of protection devices of different sizes and brands. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A front structural diagram of an embodiment of the test stand provided in this application; Figure 2 A schematic diagram of the rear structure of an embodiment of the test stand provided in this application; Figure 3 A schematic diagram of the structure of the test bench provided in the present application; Figure 4 A schematic diagram of the structure of the second embodiment of the test bench provided in this application.

[0018] Explanation of icon numbers: 100. Test stand; 1. Mounting frame; 1a. Mounting frame opening; 1b. Mounting groove; 1c. Slide groove; 2. Fixing component; 21. Mounting plate; 211. Second bolt; 21a. Mounting hole; 3. Integrated automation protection device; 31. First bolt; 4. Cable guide structure; 4a. Cable guide groove; 5. Base; 51. Caster wheel; 6. Simulated circuit breaker; 7. Communication management unit. Detailed Implementation

[0019] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that if multiple embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if multiple embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0022] The integrated automation protection device 3 is a core component of traction substations / distribution stations, integrating protection, measurement and control, and communication. It provides real-time sampling of the operating status of primary equipment such as circuit breakers, main transformers, and feeders, performs fault diagnosis, and trips within milliseconds, providing safe, reliable, and intelligent operational assurance for the railway power supply system. With the rapid development of railways, the requirements for power supply quality are constantly increasing. The commissioning of the integrated automation protection device 3 in substations is a core element of the professional skills and competence of substation maintenance personnel.

[0023] Because the existing integrated automation equipment in the station is highly automated, maintenance personnel rarely perform hands-on operation and maintenance. There is a lack of relevant training equipment and facilities. When conducting practical training for maintenance personnel, the integrated automation protection device 3 is placed arbitrarily on the table, which is very inconvenient for debugging and cannot simulate the actual installation scenario of the integrated automation protection device 3.

[0024] To address the aforementioned problems, this application proposes a test bench 100 to solve the technical issues mentioned above.

[0025] Please see Figure 1 In one embodiment of this application, the test bench 100 includes a mounting frame 1, a fixing member 2, and an integrated automated protection device 3. The mounting frame 1 has a mounting frame opening 1a, and a plurality of mounting slots 1b are provided around the periphery of the mounting frame opening 1a. The fixing member 2 includes two fixing plates, each fixing plate being disposed in a mounting slot 1b. The two fixing plates are spaced apart, and an installation space is formed between the two fixing plates. The integrated automated protection device 3 is mounted on the mounting frame 1 through the two fixing plates and is located within the installation space.

[0026] The test bench 100 achieves compatibility and fixation through the following mechanical-electrical coordination mechanism: the mounting frame 1 pre-forms a mounting frame opening 1a, and arranges several mounting slots 1b or continuous sliding slots 1c in an array around its perimeter; the two fixing plates of the fixing component 2 are discretely interchanged or continuously slid in the slot with the help of the second bolt 211, and after precise locking, they form an adjustable installation space, thereby forming planar positioning and clamping for integrated automation protection devices 3 of different brands and specifications; the edge of the device is rigidly mechanically connected by the thread engagement of the first bolt 31 with the mounting hole 21a of the fixing plate, and at the same time, the back terminal is led out downward through the wire passage 4a around the frame opening, and realizes a plug-in electrical connection of the secondary circuit with the simulated circuit breaker 6 and communication management unit 7 integrated in the same frame; the casters 51 under the base 5 give the overall displacement freedom, so that the platform can be quickly transferred between various training stations, and then the fixing, wiring, transmission tests and teaching demonstrations can be completed on the same test bench 100, truly replicating the installation conditions of the traction substation.

[0027] This application provides several embodiments of a test bench 100 and a training device. Two types of test benches 100 are proposed. The first type of test bench 100 includes a mounting frame 1, a fixing member 2, and an integrated automated protection device 3. The mounting frame 1 forms a mounting opening 1a, and the periphery of the mounting opening 1a is provided with multiple mounting slots 1b. Two fixing plates in the fixing member 2 are installed through the mounting slots 1b and can be switched between the mounting slots 1b to adjust the distance between the two fixing plates. By adjusting the distance between the two fixing plates, i.e., adjusting the size of the installation space, it can be adapted to integrated automated protection devices 3 of different brands and sizes. In another embodiment, sliding grooves 1c are provided on both sides of the mounting opening 1a to replace the mounting slots 1b in the first embodiment. This allows the two fixing plates to slide on the sliding grooves 1c and lock at any position on the sliding grooves 1c to adjust the distance between them, thus adapting to integrated automated protection devices 3 of different brands and sizes. The test bench 100 proposed in this application can not only install and fix the integrated automation protection device 3, simulating the actual installation scenario of the integrated automation protection device 3, but also adapt to the installation of protection devices of different sizes and brands.

[0028] To ensure that the integrated automated protection device 3 can be evenly installed on the two mounting plates 21, each mounting plate extends along the first direction. Each mounting plate has multiple mounting holes 21a, which are spaced apart along the first direction. The edge of the integrated automated protection device 3 is provided with a first bolt 31, which is threaded into the mounting hole 21a. For more details, please refer to further documentation. Figure 3 The fixing plate has several mounting holes 21a at equal intervals or in a modular array in the first direction. The first bolt 31 on the edge of the integrated automated protection device 3 can be selectively engaged with the corresponding hole to form a threaded engagement. When the device's external dimensions change, the device only needs to be translated along the first direction to align the bolt with the new hole and then re-lock it. Thus, longitudinal adjustment is achieved through the selective engagement of discrete holes, and protection devices of different lengths can be adapted without replacing the fixing plate.

[0029] Furthermore, each fixing plate has a second bolt 211 at both ends, allowing the fixing plate to be detachably mounted in the mounting groove 1b via the second bolts 211. During installation, align the ear holes at both ends of the fixing plate with the mounting groove 1b, insert the second bolts 211, and apply torque to tighten, thus quickly pressing the fixing plate onto the mounting frame opening 1a. During disassembly, simply unscrew the second bolts 211 to remove the fixing plate entirely or change the groove position, achieving tool-free quick replacement. This connection method allows the fixing plate's position within the groove to be discretely adjusted, balancing assembly and disassembly efficiency with connection rigidity, while avoiding permanent deformation caused by welding or riveting, facilitating subsequent maintenance, upgrades, and adaptation to different sized protection devices.

[0030] The test bench 100 also includes a simulated circuit breaker 6, which is mounted on the mounting frame 1 and is used for electrical connection to external circuits. The integrated automation protection device 3 is electrically connected to the simulated circuit breaker 6 and is used to control the opening and closing of the simulated circuit breaker 6. The trip / closing output circuit of the integrated automation protection device 3 is led to the secondary terminals of the simulated circuit breaker 6 via a control cable: During normal operation, the normally open contacts of the internal relays of the device remain open; when a fault current, overvoltage, or undervoltage signal is detected, the protection logic instantaneously drives the relay coil, causing the normally open contacts to close and output a DC 110 V / 220 V pulse to the trip coil of the simulated circuit breaker 6, and the electromagnetic tripping mechanism of the simulated circuit breaker 6 completes the tripping; the closing process is similar, with the device sending a closing pulse to excite the closing coil, driving the main contacts of the simulated circuit breaker 6 to close, achieving millisecond-level opening and reclosing.

[0031] Mounting bracket 1 is provided with a cable passage structure 4, which forms a cable passage groove 4a. The cable passage groove 4a extends along the first direction and passes through the mounting bracket 1, providing a straight and closed cable routing channel for the secondary cable. This allows the connection between the protection device and the analog circuit breaker 6 and the communication management unit 7 to be arranged longitudinally, avoiding cable crossing and tangling. This reduces electromagnetic interference and signal attenuation, and facilitates quick binding, maintenance, and addition or removal of wire cores, achieving neat wiring and efficient maintenance.

[0032] The test bench 100 also includes a base 5, and a mounting frame 1 is set on the base 5. The side of the base 5 facing away from the mounting frame 1 is provided with multiple casters 51. The casters 51 are evenly distributed on the bottom surface of the base 5, so that the test bench 100 can be pushed and braked in any direction in the horizontal plane. It can be quickly transferred to the training station or storage area without hoisting, which significantly reduces the handling intensity and passage occupation. At the same time, it is convenient to achieve flexible deployment of use and departure in different teaching scenarios.

[0033] In one embodiment, the test bench 100 proposed in this application further includes a communication management unit 7, which is mounted on the mounting frame 1. The communication management unit 7 and the mounting frame 1 are integrated and connected directly to the integrated automation protection device 3 through internal pre-fabricated network cables / serial cables. Multi-protocol data acquisition, protocol conversion and remote forwarding can be completed on the same platform without additional wiring on site, realizing on-site verification of the three-in-one communication functions of protection, measurement and control and scheduling. This significantly simplifies test wiring, shortens the debugging cycle and improves the authenticity and completeness of the training process.

[0034] In the second embodiment of this application, the difference from the test platform 100 proposed in the first embodiment is that the multiple mounting slots 1b are replaced with sliding grooves 1c, which move horizontally. For details, please refer to further reading. Figure 4 The test bench 100 includes a mounting frame 1, a fixing component 2, and an integrated automated protection device 3. The mounting frame 1 has a mounting opening 1a, and sliding grooves 1c are respectively provided on opposite sides of the periphery of the mounting opening 1a. The fixing component 2 includes two fixing plates, each fixing plate having its two ends slidably limited within a sliding groove 1c. The two fixing plates are spaced apart, forming an installation space between them. The integrated automated protection device 3 is mounted on the mounting frame 1 via the two fixing plates and is located within the installation space. The two fixing plates are configured to slide within the sliding grooves 1c and lock at any position.

[0035] This application also proposes a training device, which includes a test bench 100. The specific structure of the test bench 100 is as described in the above embodiments. Since this training device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0036] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A test bench, characterized in that, include: The mounting bracket has a mounting frame opening, and the periphery of the mounting frame opening is provided with multiple mounting slots; The fastener includes two fixing plates, each fixing plate being disposed in a mounting groove, the two fixing plates being spaced apart, and an installation space being formed between the two fixing plates; The integrated automated protection device is mounted on the mounting frame via two fixing plates and is located within the mounting space.

2. The test bench as described in claim 1, characterized in that, Each of the fixing plates extends along a first direction, and each fixing plate has a plurality of mounting holes. The plurality of mounting holes are spaced apart along the first direction. The edge of the integrated automated protection device is provided with a first bolt, which is threadedly connected to the mounting hole.

3. The test stand as described in claim 2, characterized in that, Each of the fixing plates has a second bolt at both ends, and the fixing plate is detachably mounted in the mounting groove via the second bolt.

4. The test stand as described in any one of claims 1 to 3, characterized in that, The test bench also includes a simulated circuit breaker, which is mounted on the mounting frame and is used to electrically connect with the integrated automation device. The integrated automated protection device is electrically connected to the simulated circuit breaker, and the integrated automated protection device is used to control the opening and closing of the simulated circuit breaker.

5. The test stand as described in claim 2, characterized in that, The mounting bracket is provided with a wire-passing structure, which forms a wire-passing groove that extends along the first direction.

6. The test stand as described in any one of claims 1 to 3, characterized in that, The test bench also includes a base, and the mounting bracket is mounted on the base. The base has multiple casters on the side facing away from the mounting bracket.

7. The test stand as described in any one of claims 1 to 3, characterized in that, The test bench also includes a communication management unit, which is located on the mounting frame.

8. The test stand as described in any one of claims 1 to 3, characterized in that, The mounting bracket and the two fixing plates are made of stainless steel.

9. A test stand, characterized in that, include: The mounting bracket has a mounting frame opening, and the mounting frame opening has sliding grooves on opposite sides of its periphery. The fastener includes two fixing plates, each fixing plate having its two ends slidably limited in a sliding groove, the two fixing plates being spaced apart, and an installation space being formed between the two fixing plates; The integrated automated protection device is mounted on the mounting frame via two of the aforementioned fixing plates and is located within the mounting space; The two fixing plates are configured to slide within the groove and lock at any position.

10. A training device, characterized in that, The test stand includes any one of claims 1 to 9.

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