Transformer on-load tap-changer tester

Abstract

The utility model discloses a transformer on-load tap-changer tester comprising a tester box body, the top of the tester box body is provided with an opening, the opening is provided with an opening and closing assembly, the opening is internally provided with a tester main body, one side of the tester main body is provided with a storage unit, and the other side of the tester main body is provided with an opening and closing assembly. And the storage unit comprises a test wire storage cavity and a paper material storage cavity. According to the transformer on-load tap-changer tester provided by the utility model, not only can the test wires be conveniently accommodated and taken, but also the complete storage of paper materials can be realized at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance of power transformation equipment, in particular to a transformer on-load tap changer tester. Background Art

[0002] On-load tap changer is a switch device that provides a constant voltage for the transformer when the load changes. It switches between taps in the transformer winding without interrupting the load current, thereby changing the number of turns of the winding, that is, the voltage ratio of the transformer, and finally achieving the purpose of voltage regulation. The transformer on-load tap changer tester is a comprehensive measuring instrument used to measure and analyze the electrical performance indicators of power transformers and special transformers on-load tap changers in power systems. It uses computer control and a specially designed measuring circuit to measure parameters such as transition time, transition waveform, transition resistance, and three-phase synchronization of the on-load tap changer. It can be measured directly from the tap changer leads according to needs and site conditions, or directly connected to the three-phase bushings and neutral point of the transformer.

[0003] During the on-load tap changer maintenance process, the tester needs to be connected to the on-load tap changer through the test wire, but there is no special space inside the tester to place the test wire, which is not convenient for storing or using the test wire. In the process of comprehensively measuring the indicators of various instruments, the transformer on-load tap changer tester often needs to record various data or check some data materials, so it will carry paper materials such as survey books and survey material manuscripts. Existing testers all stuff paper materials into their boxes, which can easily cause the paper materials to be bent or damaged to a certain extent. Utility Model Content

[0004] The utility model aims to provide a transformer on-load tap changer tester, which can not only facilitate the storage and taking of test wires, but also realize the complete storage of paper materials.

[0005] To achieve the above-mentioned purpose, the utility model provides a transformer on-load tap changer tester, including a tester box, the top of the tester box is provided with an opening, the opening is provided with an opening and closing assembly, the inside of the opening is provided with a tester body, and one side of the tester body is provided with a storage unit, and the storage unit includes a test wire storage cavity and a paper material storage cavity.

[0006] Preferably, the opening and closing assembly comprises a sliding guide rail, and the sliding guide rail is embedded in the inner wall of the tester box.

[0007] Preferably, the number of the sliding guide rails is two, the sliding guide rails are provided with sliding blocks that cooperate therewith, a first cover plate is connected between the sliding blocks, and a concave handle is provided on the top of the outer side of the first cover plate.

[0008] Preferably, the first cover plate is slidably connected to the bottom of the second cover plate, and the length of the second cover plate is longer than that of the first cover plate.

[0009] Preferably, the second cover plate is fixedly arranged on the top of the tester box, the second cover plate is arranged above the inner end of the sliding guide rail, and a limiting recess is arranged at the outer end of the sliding guide rail.

[0010] Preferably, the storage unit is slidably disposed on the tester housing, and when closed, the storage unit is placed on the inner side of the tester body, and a handle is provided on the outer side of the storage unit.

[0011] Preferably, a partition is provided between the test wire storage cavity and the paper material storage cavity, the storage unit is a pull-out structure, rollers are provided on both sides of the storage unit, and slide rails cooperating with the rollers are provided on the outer sides of the rollers.

[0012] Preferably, a limiting plate is provided inside the paper material storage cavity, and a telescopic rod is provided on one side of the limiting plate.

[0013] Preferably, the number of the telescopic rods is four, the bottom of the telescopic rod is connected to the partition, and a spring is provided inside the telescopic rod.

[0014] Preferably, handles are symmetrically provided on both sides of the tester box.

[0015] Therefore, the utility model adopts the above-mentioned transformer on-load tap changer tester, and the tester can be conveniently used by setting an opening and closing component. When the tester is not used, the concave handle can be pulled to clamp the slider into the limit recess to realize the closing of the opening and closing component.

[0016] The wire storage cavity is provided to facilitate the collection of wires, and the paper material collection cavity is provided to facilitate the complete storage of paper materials.

[0017] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a transformer on-load tap changer tester of the utility model;

[0019] Figure 2 It is a bottom view of a first cover plate and a second cover plate of an embodiment of a transformer on-load tap changer tester of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a sliding guide rail of an embodiment of a transformer on-load tap changer tester of the utility model;

[0021] Figure 4 The utility model is a top view of a storage unit of an embodiment of a transformer on-load tap changer tester.

[0022] Reference numerals

[0023] 1. Tester box; 2. Tester body; 3. Storage unit; 4. Handle; 5. Sliding rail; 6. Sliding block; 7. First cover plate; 8. Inwardly recessed handle; 9. Second cover plate; 10. Turn bar; 11. Slide groove; 12. Limiting groove; 13. Partition plate; 14. Handle; 15. Limiting plate; 16. Telescopic rod; 17. Spring; 18. Test wire storage cavity; 19. Paper material storage cavity. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further illustrated below through the accompanying drawings and embodiments.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Embodiment 1

[0027] like Figure 1-4 As shown, the utility model provides a transformer on-load tap changer tester, including a tester box 1, the top of the tester box 1 is provided with an opening, the opening is provided with an opening and closing assembly, and the inside of the opening is provided with a tester body 2, the tester box 1 can be opened or closed by the opening and closing assembly, when the opening and closing assembly is opened, the tester body 2 can be exposed, so that the test work can be carried out, after the test work is completed, the opening and closing assembly can be closed to prevent the tester body 2 from being damaged during the moving process. Handles 4 are symmetrically provided on both sides of the tester box 1. The tester box 1 can be conveniently moved by the handles 4.

[0028] The opening and closing assembly includes a sliding guide rail 5, which is embedded in the inner wall of the tester box 1. The sliding guide rail 5 is embedded in the upper position of the test box 1. There are two sliding guide rails 5, and the sliding guide rails 5 are provided with sliders 6 that cooperate with them. The first cover plate 7 is connected between the sliders 6, and the top of the outer side of the first cover plate 7 is provided with a concave handle 8. By pulling or pushing the concave handle 8, the opening and closing size of the first cover plate 7 can be controlled, so that the opening and closing assembly can be opened or closed.

[0029] The first cover plate 1 is slidably connected to the bottom of the second cover plate 9, and the length of the second cover plate 9 is longer than that of the first cover plate. When the opening and closing assembly is fully opened, the first cover plate 7 is completely hidden at the bottom of the second cover plate 8.

[0030] The second cover plate 9 is fixedly arranged on the top of the tester box 1, and the second cover plate 9 is arranged above the inner end of the sliding guide rail 5, and a limit recess 12 is arranged on the outer end of the sliding guide rail 5. When the inner recessed handle 8 is pulled to close the first cover plate 7, the slider 6 will eventually enter the limit recess 12, so that when the entire test box is tilted, the first cover plate 7 will not open automatically due to the effect of gravity. When opening, the first cover plate 7 needs to be lifted up so that the slider 6 moves out of the limit recess 12, and the first cover plate 7 can be pushed to expose the internal tester body 2.

[0031] The storage unit 3 is slidably disposed on the tester housing 1 . When closed, the storage unit 3 is placed inside the tester body 2 . Meanwhile, the second cover plate 9 is placed above the storage unit 3 to cover the storage unit 3 , thereby achieving a certain aesthetic effect.

[0032] The storage unit 3 is a pull-out structure, with a handle 14 provided on the outside of the storage unit 3, rollers provided on both sides of the storage unit 3, and slide rails provided on the outside of the rollers to match the rollers. The storage unit 3 can be pulled out of the tester box 1 by pulling the handle 14, and a limit block is provided at the outermost end of the slide rail to prevent the storage unit from detaching from the slide rail. At the same time, when the storage unit 3 is fully pushed into the tester box 1, the storage unit 3 can be limited by the limit switch on the outer wall of the tester box 1, thereby preventing the storage unit 3 from sliding out of the tester box 1 by itself.

[0033] The limit switch is specifically two rotating rods 10, the rotating shaft of the rotating rod 10 is fixed on the outer wall of the tester box 1, and a protruding block is provided at the end of the rotating rod 10 away from the rotating shaft. When the storage unit 3 is fully closed, the rotating rod 10 can be rotated so that the end of the rotating rod 10 is clamped on the handle 14, thereby playing a limiting role.

[0034] The storage unit 3 includes a test wire storage chamber 18 and a paper material storage chamber 19, and the test wire storage chamber 18 and the paper material storage chamber 19 are separated by a partition 13. The storage chamber is used to store corresponding articles.

[0035] A limit plate 15 is provided inside the paper material storage chamber 19, and a telescopic rod 16 is provided on one side of the limit plate 15. There are four telescopic rods 16, and the bottom of the telescopic rod 16 is connected to the partition 13, and a spring 17 is provided inside the telescopic rod 16. When placing paper materials in the paper material storage chamber 19, the limit plate 15 can be pressed toward the side of the partition 13, and the spring 17 is contracted by the pressure. After the paper materials are placed, the pressure on the limit plate 15 is stopped, and the limit plate 15 can be pushed to move to the side away from the partition 13 under the action of the elastic force of the spring 17, so that the limit plate 15 can squeeze the paper materials, and fix the paper materials to prevent them from bending or breaking.

[0036] Therefore, the utility model adopts the above-mentioned transformer on-load tap changer tester, which can facilitate the maintenance of the tap changer, effectively improve the maintenance efficiency, and at the same time facilitate the cleaning of the operating table.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A transformer on-load tap changer tester, characterized in that: It comprises a tester box, the top of which is provided with an opening, an opening and closing assembly is provided at the opening, a tester body is provided inside the opening, a storage unit is provided on one side of the tester body, and the storage unit comprises a test wire storage cavity and a paper material storage cavity.

2. A transformer on-load tap changer tester according to claim 1, characterized in that: The opening and closing assembly comprises a sliding guide rail, and the sliding guide rail is embedded in the inner wall of the tester box.

3. A transformer on-load tap changer tester according to claim 2, characterized in that: The number of the sliding guide rails is two, and the sliding guide rails are provided with sliding blocks that cooperate with them. A first cover plate is connected between the sliding blocks, and a concave handle is provided on the top of the outer side of the first cover plate.

4. A transformer on-load tap changer tester according to claim 3, characterized in that: The first cover plate is slidably connected to the bottom of the second cover plate, and the length of the second cover plate is longer than that of the first cover plate.

5. A transformer on-load tap changer tester according to claim 4, characterized in that: The second cover plate is fixedly arranged on the top of the tester box, the second cover plate is arranged above the inner end of the sliding guide rail, and a limiting recess is arranged at the outer end of the sliding guide rail.

6. A transformer on-load tap changer tester according to claim 5, characterized in that: The storage unit is slidably arranged on the tester box body. When the storage unit is closed, it is placed on the inner side of the tester body. A handle is arranged on the outer side of the storage unit.

7. A transformer on-load tap changer tester according to claim 6, characterized in that: A partition is provided between the test wire storage cavity and the paper material storage cavity. The storage unit is a pull-out structure. Rollers are provided on both sides of the storage unit. The outer sides of the rollers are provided with slide rails that cooperate with the rollers.

8. The transformer on-load tap changer tester according to claim 7, characterized in that: A limiting plate is arranged inside the paper material storage cavity, and a telescopic rod is arranged on one side of the limiting plate.

9. A transformer on-load tap changer tester according to claim 8, characterized in that: The number of the telescopic rods is four, the bottoms of the telescopic rods are connected to the partitions, and springs are arranged inside the telescopic rods.

10. The transformer on-load tap changer tester according to claim 1, characterized in that: Handles are symmetrically arranged on both sides of the tester box.

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