A voltage transformer calibration device

Abstract

The utility model discloses a voltage transformer check device relates to voltage transformer check technical field, including excitation transformer, control box and accomodating mechanism, and the lateral portion of excitation transformer is provided with reactor, and the control box is located between excitation transformer and reactor, and accomodating mechanism is located at the outside of excitation transformer, control box and reactor, and accomodating mechanism is used for unified support and accomodation to excitation transformer, control box and reactor. The utility model discloses through utilize the mutual cooperation of first frame body, second frame body, moving part and positioning assembly, accomodating board carries out series connection support to first frame body, second frame body and third frame body, and first frame body and second frame body and third frame body accomodate and store control box, excitation transformer and reactor respectively, are favorable to unified handling and accomodation to excitation transformer, control box and reactor, and can directly use excitation transformer and control box on accomodating board simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of voltage transformer verification technology, and in particular to a voltage transformer verification device. Background Technology

[0002] A voltage transformer is a special type of transformer that converts high voltage to low voltage proportionally for use in measurement, protection, and control systems. Voltage transformers usually require calibration, and a split-type CVT resonant boost device is typically used for this purpose.

[0003] Existing split-type CVT resonant boost devices typically include an excitation transformer, a control box, and a reactor, and then utilize the cooperation of the excitation transformer, control box, and reactor to perform verification operations on the voltage transformer.

[0004] The magnetic transformer, control box, and reactor are usually set up separately. However, when carrying a split CVT resonant boost device, it is usually necessary to move the magnetic transformer, control box, and reactor one by one and store them separately. This method is inconvenient to carry and retrieve. Therefore, it is necessary for a split CVT resonant boost device to carry and store the magnetic transformer, control box, and reactor in a unified manner. Utility Model Content

[0005] The purpose of this invention is to provide a voltage transformer calibration device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a voltage transformer calibration device, comprising: An excitation transformer, wherein a reactor is provided on the side of the excitation transformer and a fixing base is provided on the reactor; A control box, located between the excitation transformer and the reactor; A storage mechanism is located outside the excitation transformer, control box, and reactor. The storage mechanism is used to provide unified support and storage for the excitation transformer, control box, and reactor.

[0007] Preferably, the storage mechanism includes: The first frame, the control box is slidably inserted into the interior of the first frame; The excitation transformer is slidably inserted into the interior of the second frame. The reactor is slidably inserted into the interior of the third frame.

[0008] Preferably, the storage mechanism further includes: A storage board, which is fixedly connected to the bottom of the first frame, the second frame and the third frame; Fixed handles are fixedly connected to the sides of the first frame and the second frame, respectively. Multiple positioning components are respectively located on the first frame, the second frame, and the third frame; A movable component located at the bottom of the storage plate.

[0009] Preferably, the moving part includes: Casters are mounted on the bottom of the storage panel; The casters are fixedly connected to the bottom of the storage panel.

[0010] Preferably, the positioning component includes: The first cylindrical body is fixedly connected to the side of the third frame; Multiple second cylinders are fixedly connected to the sides of the first frame and the second frame, respectively; Multiple limiting rods are provided, and the sides of the first frame, the second frame and the third frame are all provided with through grooves that cooperate with the limiting rods; Multiple mounting bases are fixedly connected to the sides of the excitation transformer and the control box, respectively. The sides of the inner walls of the first frame and the second frame are provided with mounting grooves that mate with the mounting bases. The limiting rod is slidably inserted into the inner cavity of the mounting base.

[0011] Preferably, the positioning component further includes: A movable plate, which is fixedly connected to the end of the limiting rod; A fixed frame is fixedly connected to the side of the movable plate; Multiple push columns are threadedly connected to the sides of the first cylinder and the second cylinder, and the ends of the push columns are rotatably connected to the sides of the fixing frame.

[0012] The technical effects and advantages of this utility model are as follows: This invention utilizes the cooperation of a first frame, a second frame, a third frame, a storage plate, a fixed handle, a movable component, and a positioning component. The storage plate provides series support for the first, second, and third frames. The first, second, and third frames respectively store the control box, the excitation transformer, and the reactor. The fixed handle lifts the storage plate and the first, second, and third frames. The positioning component defines the positions of the excitation transformer, the control box, and the reactor. This facilitates the unified handling, carrying, and storage of the excitation transformer, the control box, and the reactor. Furthermore, the excitation transformer and the control box can be directly used on the storage plate, making operation convenient. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a front sectional view of the present invention. Figure 3 This is a side sectional view of the first cylindrical section of the present invention. Figure 4 This is a side cross-sectional view of the second cylinder of this utility model.

[0014] In the attached image: 1. Excitation transformer; 2. Control box; 3. Reactor; 4. Fixing base; 5. Storage mechanism; 51. First frame; 52. Second frame; 53. Third frame; 54. Storage plate; 55. Fixed handle; 56. Casters; 57. Casters; 58. First cylinder; 59. Second cylinder; 510. Limiting rod; 511. Moving plate; 512. Fixing frame; 513. Push column; 514. Mounting base. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides, for example Figures 1-4 The diagram shows a voltage transformer calibration device.

[0017] Example 1: Includes an excitation transformer 1, a control box 2, and a storage mechanism 5. The voltage transformer calibration process involves the control box 2 adjusting the input voltage and controlling the test flow. The excitation transformer 1 boosts the low-voltage power supply to a medium-voltage level, providing energy input to the reactor 3. The reactor 3 adjusts its own inductance to form a series resonance with the equivalent capacitance of the voltage transformer under test. At this point, the circuit impedance is minimal and purely resistive, generating a high test voltage on the device under test. In the resonant state, the voltage and current are in phase, resulting in efficient energy transfer. By comparing the output signal of the device under test with that of a standard voltage transformer, and measuring the ratio difference and phase difference using a calibrator, the accuracy of the voltage transformer is verified to meet the standard requirements. The reactor 3 is located on the side of the excitation transformer 1, and a fixed base 4 is provided on the reactor 3, which facilitates cooperation with two limiting rods 510. The ends of the limiting rods 510 are located at the top of the fixed base 4. Figure 3 As shown, this facilitates the limitation of the position of the reactor 3, so that the reactor 3 is limited inside the third frame 53, the control box 2 is located between the excitation transformer 1 and the reactor 3, and the storage mechanism 5 is located outside the excitation transformer 1, the control box 2 and the reactor 3. The storage mechanism 5 is used to provide unified support and storage for the excitation transformer 1, the control box 2 and the reactor 3.

[0018] Furthermore, the storage mechanism 5 includes a first frame 51, a second frame 52, and a third frame 53. The first frame 51 facilitates the placement of the control box 2 and provides support and storage for it. The second frame 52 facilitates the support and storage of the excitation transformer 1. The third frame 53 facilitates the placement of the reactor 3. The control box 2 is slidably inserted into the interior of the first frame 51, the excitation transformer 1 is slidably inserted into the interior of the second frame 52, and the reactor 3 is slidably inserted into the interior of the third frame 53.

[0019] Furthermore, the storage mechanism 5 also includes a storage plate 54, fixed handles 55, multiple positioning components, and movable parts. The storage plate 54 provides bottom support for the first frame 51, the second frame 52, and the third frame 53, enabling unified movement of the first frame 51, the second frame 52, and the third frame 53. This facilitates the unified carrying and storage of the excitation transformer 1, the control box 2, and the reactor 3, allowing for unified handling without the need for individual handling. The excitation transformer 1 and the control box 2 can be used without being disassembled. The storage plate 54 is fixedly connected to the bottom of the first frame 51, the second frame 52, and the third frame 53. Adjacent fixed handles 55 are fixedly connected to the sides of the first frame 51 and the second frame 52, respectively. Multiple positioning components are located on the first frame 51, the second frame 52, and the third frame 53, and the movable parts are located at the bottom of the storage plate 54.

[0020] Specifically, the movable components include casters 56 and casters 57. Casters 56 facilitate the movement of the storage plate 54, while casters 57 facilitate the movement of the storage plate 54 on the ground. This, in turn, facilitates the movement of the excitation transformer 1, control box 2, and reactor 3, enabling unified movement and carrying operations. Casters 56 are installed on the bottom of the storage plate 54, and casters 57 are fixedly connected to the bottom of the storage plate 54.

[0021] Specifically, the positioning assembly includes a first cylinder 58, multiple second cylinders 59, multiple limiting rods 510, and multiple mounting seats 514. Both the first cylinder 58 and the second cylinders 59 provide support for the push column 513. The first cylinder 58 is located on the third frame 53, and the second cylinders 59 are distributed on the second frame 52 and the first frame 51. The limiting rods 510 limit the vertical position of the fixed seat 4 and cooperate with the mounting seats 514 to limit the movement of the excitation transformer 1 and the control box 2, preventing them from shaking unnecessarily. The mounting seats 514 facilitate the positioning of the excitation transformer 1... The positions of the control box 2 are defined. The first cylinder 58 is fixedly connected to the side of the third frame 53. Multiple second cylinders 59 are fixedly connected to the sides of the first frame 51 and the second frame 52 respectively. The sides of the first frame 51, the second frame 52 and the third frame 53 are all provided with through grooves that cooperate with the limiting rod 510. Multiple mounting seats 514 are fixedly connected to the sides of the excitation transformer 1 and the control box 2 respectively. The sides of the inner walls of the first frame 51 and the second frame 52 are all provided with mounting grooves that cooperate with the mounting seats 514. The limiting rod 510 is slidably inserted into the inner cavity of the mounting seat 514.

[0022] Example 2: Based on Example 1, the positioning assembly further includes a movable plate 511, a fixed frame 512, and multiple push columns 513. The movable plate 511 is beneficial for supporting the limiting rod 510 and facilitating the horizontal sliding of the limiting rod 510. The fixed frame 512 is U-shaped, which is beneficial for moving the movable plate 511. The push columns 513 are beneficial for pushing or pulling the fixed frame 512, thereby facilitating the driving operation of the position of the limiting rod 510. The movable plate 511 is fixedly connected to the end of the limiting rod 510, the fixed frame 512 is fixedly connected to the side of the movable plate 511, and the multiple push columns 513 are respectively threaded through and connected to the side of the first cylinder 58 and the second cylinder 59. The end of the push column 513 is rotatably connected to the side of the fixed frame 512.

[0023] 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 voltage transformer calibration device, characterized in that: include: Excitation transformer (1), a reactor (3) is provided on the side of the excitation transformer (1), and a fixed seat (4) is provided on the reactor (3). Control box (2), which is located between excitation transformer (1) and reactor (3); A storage mechanism (5) is located outside the excitation transformer (1), control box (2), and reactor (3). The storage mechanism (5) is used to provide unified support and storage for the excitation transformer (1), control box (2), and reactor (3). The storage mechanism (5) includes: The first frame (51) is slidably inserted into the interior of the control box (2); The excitation transformer (1) is slidably inserted into the interior of the second frame (52); The reactor (3) is slidably inserted into the interior of the third frame (53); Storage board (54), which is fixedly connected to the bottom of the first frame (51), the second frame (52) and the third frame (53); Fixed handles (55), adjacent fixed handles (55) are respectively fixedly connected to the sides of the first frame (51) and the second frame (52); Multiple positioning components are located on the first frame (51), the second frame (52), and the third frame (53), respectively. A movable component located at the bottom of the storage plate (54).

2. The voltage transformer verification device according to claim 1, characterized in that: The movable component includes: The movable wheels (56) are mounted on the bottom of the storage plate (54); The caster wheel (57) is fixedly connected to the bottom of the storage plate (54).

3. The voltage transformer verification device according to claim 1, characterized in that: The positioning component includes: The first cylindrical body (58) is fixedly connected to the side of the third frame (53); Multiple second cylinders (59) are fixedly connected to the sides of the first frame (51) and the second frame (52), respectively. Multiple limiting rods (510), and through grooves that cooperate with the limiting rods (510) are opened on the sides of the first frame (51), the second frame (52) and the third frame (53); Multiple mounting bases (514) are fixedly connected to the sides of the excitation transformer (1) and the control box (2). The sides of the inner walls of the first frame (51) and the second frame (52) are provided with mounting grooves that cooperate with the mounting bases (514). The limiting rod (510) is slidably inserted into the inner cavity of the mounting base (514).

4. The voltage transformer verification device according to claim 3, characterized in that: The positioning component also includes: A movable plate (511) is fixedly connected to the end of a limiting rod (510); A fixing frame (512) is fixedly connected to the side of the movable plate (511); Multiple push columns (513) are threadedly connected to the sides of the first cylinder (58) and the second cylinder (59), and the ends of the push columns (513) are rotatably connected to the sides of the fixing frame (512).

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