A test device for electric power relay protection practical training examination

Abstract

The utility model relates to the technical field of power system microcomputer protection comprehensive training device, and disclose a kind of test device of power relay protection practical training examination, including power system microcomputer protection comprehensive training platform, the both sides of the power system microcomputer protection comprehensive training platform are respectively matched with detachable fastener.The test device of the power relay protection practical training examination, the design of mobile along guide rail sliding and damping rod height adjustment, it is convenient for operator to adjust position flexibly when wiring, take line, reduce the abrasion of wiring harness due to improper operation, effectively protect the insulating layer of conductor, maintain the electrical performance stability of device, detachable fastener makes mounting and wiring related structure easy to disassemble maintenance;The sliding of mobile and the height adjustment of damping rod, adapt to the wiring needs of different operating position and height, make wiring, wiring more convenient;And the orderly layout of wiring rack also provides convenient conditions for the cleaning of wiring harness, further guarantees the performance of wiring harness.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated training devices for microcomputer protection in power systems, specifically a test device for training and assessing power relay protection. Background Technology

[0002] The experimental device for power relay protection training and assessment, also known as the power system microcomputer protection integrated training device, is crucial because most power system relay protection currently uses microcomputer-based protection devices. As a modern protection device, it occupies a very important position in the secondary system of the power system. Therefore, it is very important for students majoring in power system technology and on-the-job professional technicians to master the wiring, parameter setting, and debugging of microcomputer devices. The training device uses microcomputer line protection devices and microcomputer transformer protection devices widely used in power engineering, and is equipped with a simulated primary system circuit breaker. It can complete practical training and assessment projects on the characteristic testing and wiring of microcomputer line and transformer protection devices, as well as parameter setting, operation, and fault detection, judgment, and troubleshooting of line protection and transformer protection.

[0003] However, in actual operation, the inventors found the following problems: The power system microcomputer protection integrated training device is operated by combining a relay protection tester, line protection device, wiring panel, transformer protection device and simulated circuit breaker. However, in the process of operation, since it is for the characteristic testing, wiring, parameter setting, operation and fault detection, judgment and elimination of microcomputer line and microcomputer transformer protection devices, as well as the training and assessment projects, the internal structure of the device is modular and involves multi-channel analog quantity and switch quantity sampling (such as the relay protection tester "has multi-channel analog quantity and switch quantity sampling") and complex communication functions (supporting DL / T667-1999 protocol, Ethernet and fiber optic communication). The messy wire harness may cause signal interference, resulting in sampling error, communication interruption or protection logic malfunction. At the same time, the squeezing and tangling of the wire harness may cause damage to the insulation layer of the conductor, affecting the electrical performance.

[0004] Based on this, the present invention provides an experimental device for training and assessment of power relay protection. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a test device for power relay protection training and assessment. It has the advantages of arranging and placing lines through its structure, which allows for convenient wire management, wire retrieval, and cleaning of wire harnesses, thus solving the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a test device for power relay protection training and assessment, including a power system microcomputer protection integrated training platform. Removable fasteners are fitted to both sides of the power system microcomputer protection integrated training platform. Mounting components are attached to the threaded surfaces of the fasteners. A guide rail is fixedly connected to the side of the mounting component. A movable component is slidably connected to the surface of the guide rail. A damping rod is fixedly installed on the top of the movable component. A cable management rack is fixedly connected to the top of the damping rod. Several C-shaped line clips are fixedly connected to the bottom of the cable management rack.

[0007] Preferably, the power system microcomputer protection integrated training platform includes a relay protection tester, a line protection device, a wiring panel, a transformer protection device, and a simulated circuit breaker, which are integrated on the table surface of the power system microcomputer protection integrated training platform.

[0008] Preferably, two sets of mounting components are respectively provided on the left and right sides of the power system microcomputer protection integrated training platform.

[0009] Preferably, the cable management rack has two sets of rotating rods internally connected, and positive and negative pole strip magnets are fixedly connected to the inner side of the rotating rods.

[0010] Preferably, casters and support members are respectively provided at the four corners of the lower surface of the power system microcomputer protection integrated training platform. The height of the support members is adjustable, and the lowest point of the support members can be lower than the lowest point of the casters.

[0011] Preferably, the cable management racks are in two sets and are relatively distributed.

[0012] Preferably, limiting rings are fixedly installed on the surfaces of the two sets of rotating rods, and the side of the limiting rings is in contact with the side of the cable management frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This test device for power relay protection training and assessment uses several C-shaped line clips at the bottom of the cable management rack to classify and connect multiple analog quantity, switch quantity, and communication lines in the training, avoiding messy and tangled wires. The device utilizes two sets of cable management racks to achieve combined or long-distance cable management through the attraction or repulsion of positive and negative magnetic strips. Its state can be adjusted according to the cable harness layout requirements, reducing signal interference between different cable harnesses and ensuring the sampling accuracy and communication stability (such as DL / T667-1999 protocol, Ethernet, and fiber optic communication) of the relay protection tester, thus reducing the risk of malfunctions in protection logic. The design of the sliding parts along the guide rail and the height adjustment of the damping rod allows operators to flexibly adjust the position when managing and retrieving cables, reducing wear on the cable harnesses due to improper operation, effectively protecting the conductor insulation layer, and maintaining the stable electrical performance of the device. Removable fasteners facilitate disassembly and maintenance of the mounting components and cable management-related structures. The sliding of the moving parts and the height adjustment of the damping rod adapt to different operating positions and heights for cable management needs, making cable retrieval and management more convenient. The orderly layout of the cable management racks also provides convenient conditions for cleaning the cable harnesses, further ensuring cable harness performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0016] Figure 2 This utility model Figure 1 A schematic diagram of the structure on the right side;

[0017] Figure 3 This is a partial structural diagram of the present invention.

[0018] In the picture:

[0019] 100. Power System Microcomputer Protection Integrated Training Platform; 101. Relay Protection Tester; 102. Line Protection Device; 103. Wiring Panel; 104. Transformer Protection Device; 105. Simulated Circuit Breaker; 106. Casters; 107. Support Components;

[0020] 200. Mounting components; 201. Fasteners; 202. Guide rails;

[0021] 300. Moving part; 301. Damping rod; 302. Cable management rack; 303. C-type cable clamp; 304. Positive and negative pole strip magnets; 305. Rotating rod; 306. Limiting ring. Detailed Implementation

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figure 1-3A test device for power relay protection training and assessment includes a power system microcomputer protection integrated training platform 100. Removable fasteners 201 are fitted to both sides of the power system microcomputer protection integrated training platform 100. Mounting components 200 are attached to the threaded surfaces of the fasteners 201. A guide rail 202 is fixedly connected to the side of the mounting component 200. A moving component 300 is slidably connected to the surface of the guide rail 202. A damping rod 301 is fixedly installed on the top of the moving component 300. A cable management rack 302 is fixedly connected to the top of the damping rod 301. Several C-shaped line clips 303 are fixedly connected to the bottom of the cable management rack 302.

[0024] Please see Figure 1 The power system microcomputer protection integrated training platform 100 includes a relay protection tester 101, a line protection device 102, a wiring panel 103, a transformer protection device 104, and a simulated circuit breaker 105. The relay protection tester 101, line protection device 102, wiring panel 103, transformer protection device 104, and simulated circuit breaker 105 are integrated on the platform of the power system microcomputer protection integrated training platform 100. Two sets of mounting components 200 are respectively provided on the left and right sides of the power system microcomputer protection integrated training platform 100.

[0025] The Power System Microcomputer Protection Integrated Training Platform 100 integrates a relay protection tester 101, a line protection device 102, a wiring panel 103, a transformer protection device 104, and a simulated circuit breaker 105. Through the coordinated operation of these devices, it completes practical training and assessment projects such as characteristic testing, wiring, parameter setting, and fault detection of microcomputer-based line and transformer protection devices, providing core functional support for practical training operations. The core project provides core functional support for practical training operations. The mounting component 200 is fixed to both sides of the power system microcomputer protection integrated training platform 100 by detachable fasteners 201, realizing the detachable installation of cable management related structures, which is convenient for maintenance and adjustment. The moving component 300 can slide along the surface of the guide rail 202, driving the top cable management rack 302 to move and adapt to the cable management needs of different positions. The damping rod 301 can adjust the height of the cable management rack 302, and fix the adjusted position through the damping characteristics, which makes it convenient for operators to pick up and put down the cable according to the actual operating height. Several C-shaped line clips 303 at the bottom of the cable management rack 302 can classify and clip the cable during the training process, avoiding cable tangling and squeezing, reducing signal interference and insulation damage risks.

[0026] Please see Figure 2The lower surface of the power system microcomputer protection integrated training platform 100 is provided with casters 106 and support members 107 at the four corners. The height of the support members 107 is adjustable, and the lowest point of the support members 107 can be lower than the lowest point of the casters 106.

[0027] The two sets of rotating rods 305 inside the cable management rack 302 can rotate, and the positive and negative pole strip magnets 304 on their inner sides can rotate. The two sets of positive and negative pole strip magnets 304 can attract or repel each other, so that the two sets of cable management racks 302 can be in a combined or long-distance cable management state. The limiting ring 306 is attached to the side of the cable management rack 302 to limit the rotation range of the rotating rods 305.

[0028] Please see Figure 3 The cable management rack 302 has two sets of rotating rods 305 connected internally. Positive and negative pole strip magnets 304 are fixedly connected to the inner side of the rotating rods 305. There are two sets of cable management racks 302, which are relatively distributed. Limiting rings 306 are fixedly installed on the surface of the two sets of rotating rods 305. The side of the limiting rings 306 is in contact with the side of the cable management rack 302.

[0029] The casters 106 on the lower surface of the power system microcomputer protection integrated training platform 100 facilitate the overall movement of the device and adapt to the needs of different training sites; the height-adjustable support 107 is adjusted to the lowest point below the casters 106 after the device is positioned, so as to achieve stable support of the device and avoid the impact of shaking on the operation accuracy during the training process.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A test device for training and assessment of power relay protection, characterized in that, The system includes a power system microcomputer protection integrated training platform (100). The power system microcomputer protection integrated training platform (100) is equipped with detachable fasteners (201) on both sides. The screw surfaces of the fasteners (201) are fitted with mounting parts (200). The sides of the mounting parts (200) are fixedly connected to guide rails (202). The surfaces of the guide rails (202) are slidably connected to moving parts (300). The top of the moving parts (300) is fixedly installed with damping rods (301). The top of the damping rods (301) is fixedly connected with cable management racks (302). The bottom of the cable management racks (302) is fixedly connected with several C-shaped line clips (303).

2. The experimental device for power relay protection training and assessment according to claim 1, characterized in that: The power system microcomputer protection integrated training platform (100) includes a relay protection tester (101), a line protection device (102), a wiring panel (103), a transformer protection device (104), and a simulated circuit breaker (105). The relay protection tester (101), the line protection device (102), the wiring panel (103), the transformer protection device (104), and the simulated circuit breaker (105) are integrated on the table surface of the power system microcomputer protection integrated training platform (100).

3. The experimental device for power relay protection training and assessment according to claim 1, characterized in that: Two sets of mounting components (200) are respectively installed on the left and right sides of the power system microcomputer protection integrated training platform (100).

4. The experimental device for power relay protection training and assessment according to claim 1, characterized in that: The cable management rack (302) is internally connected to two sets of rotating rods (305), and positive and negative pole strip magnets (304) are fixedly connected to the inner side of the rotating rods (305).

5. The experimental device for power relay protection training and assessment according to claim 1, characterized in that: The power system microcomputer protection integrated training platform (100) has casters (106) and support members (107) respectively installed at the four corners of its lower surface. The height of the support member (107) is adjustable, and the lowest point of the support member (107) can be lower than the lowest point of the caster (106).

6. The experimental device for power relay protection training and assessment according to claim 1, characterized in that: The cable management racks (302) are in two sets and are relatively distributed.

7. The experimental device for power relay protection training and assessment according to claim 4, characterized in that: Limiting rings (306) are fixedly installed on the surfaces of the two sets of rotating rods (305), and the side of the limiting rings (306) is in contact with the side of the cable management rack (302).

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