Dry-type test transformer

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a dry-type testing transformer which comprises a base, a transformer body is arranged on the top of the base, and a push rod is installed on one side of the base. The auxiliary fixing assembly comprises auxiliary fixing blocks installed on the two sides of the transformer body and a containing groove formed in the base, inserting rods are inserted into the auxiliary fixing blocks, and the ends, close to the base, of the inserting rods are inserted into the containing groove; through the auxiliary fixing assembly, the auxiliary limiting assembly and the reset assembly, the base and the dry-type transformer can be effectively and rapidly disassembled, so that the dry-type transformer can be conveniently and rapidly disassembled, the overhauling efficiency of workers on the dry-type transformer is improved, the workload of the workers is further reduced, and the working efficiency of the workers is improved. And the dry-type transformer can be limited, so that shaking of the dry-type transformer is avoided, and stable use of the dry-type transformer is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a dry-type test transformer. Background Art

[0002] The dry-type power frequency test transformer adopts the new technology and new materials of coil epoxy vacuum casting and CD type iron core. It is suitable for power system and various power users to test the insulation performance of various electrical equipment on site, DC withstand voltage and leakage current test.

[0003] In the Chinese patent with publication number CN213660189U, a new dry-type test transformer is disclosed. The dry-type test transformer does not generate partial discharge when the isolation transformer is running at a voltage lower than its rated voltage. At the same time, the interference from the power supply will be attenuated to more than 1 order of magnitude through the inner shielding layer and the outer shielding layer. The high-frequency signal from the power supply side can be attenuated by the isolation transformer, but the low-frequency test voltage and current can be passed, which greatly reduces the external signal interference and improves the stability and accuracy of the dry-type transformer partial discharge measurement. The dry-type test transformer is light in weight, small in size, beautiful in appearance, stable in performance, easy to use and carry, and can be very stable, safe and reliable. However, when the above-mentioned dry-type test transformer is actually used, the dry-type test transformer is generally placed directly inside the control box. However, when the dry-type test transformer and the control box are placed, it is difficult to quickly disassemble and assemble the dry-type test transformer and the control box, thereby reducing the maintenance efficiency of the staff on the dry-type transformer, further increasing the workload of the staff, and the dry-type transformer is prone to shaking when in use, thereby reducing the practicality of the dry-type transformer.

[0004] In order to solve the above problems, a dry-type test transformer is proposed in the present application. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a dry-type test transformer, which has the characteristics of convenient and quick disassembly and assembly of the dry-type transformer.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dry-type test transformer, comprising:

[0008] A base, a transformer body is arranged on the top of the base, and a push rod is installed on one side of the base;

[0009] The auxiliary fixing assembly comprises auxiliary fixing blocks installed on both sides of the transformer body and a receiving groove provided on the base, wherein an insertion rod is inserted into the auxiliary fixing block, and an end of the insertion rod close to the base is inserted into the receiving groove.

[0010] As a preferred dry-type test transformer of the utility model, an auxiliary limit assembly is arranged inside the base, and the auxiliary limit assembly includes a placement groove opened inside the base and a trapezoidal block installed inside the placement groove, and a limit groove is opened on the insertion rod, and the end of the trapezoidal block away from the placement groove is inserted into the limit groove.

[0011] As a preferred dry-type test transformer of the utility model, a reset component is arranged inside the placement groove, and the reset component includes an extrusion spring installed inside the placement groove. The extrusion spring is inside the placement groove, and the trapezoidal block can be effectively limited and reset by the set extrusion spring, so that the trapezoidal block limits the insertion rod.

[0012] As a preferred dry-type test transformer of the utility model, the transformer body includes a dry-type transformer installed on the top of the base and a terminal installed at one end of the dry-type transformer close to the push rod.

[0013] As a preferred dry-type test transformer of the utility model, a grounding assembly is provided at one end of the dry-type transformer close to the push rod, and the grounding assembly includes a grounding end installed at one end of the dry-type transformer close to the push rod.

[0014] As a preferred dry-type test transformer of the utility model, an auxiliary insulation assembly is arranged between the dry-type transformer and the base, and the auxiliary insulation assembly includes an insulation plate installed at the bottom of the dry-type transformer. The arranged insulation plate can effectively insulate the dry-type transformer and the base to avoid damage caused by leakage of the dry-type transformer, thereby increasing the service life of the dry-type transformer.

[0015] As a preferred dry-type test transformer of the utility model, an auxiliary connection component is provided between the insulating plate and the base, the auxiliary connection component includes a plug-in slot provided on the base and a plug-in block installed at the bottom of the insulating plate, guide blocks are fixed on both sides of the plug-in block, a guide slot is provided on the base, the guide block is located in the guide slot, and the auxiliary connection component is provided to facilitate the disassembly and assembly of the insulating plate, so as to improve the inspection and replacement speed of the insulating plate and further improve the service life of the insulating plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model can effectively disassemble and assemble the base and the dry-type transformer quickly by providing auxiliary fixing components, auxiliary limiting components and reset components, so as to facilitate the rapid disassembly of the dry-type transformer, thereby improving the maintenance efficiency of the dry-type transformer by the staff, further reducing the workload of the staff, and limiting the dry-type transformer to avoid shaking of the dry-type transformer, thereby ensuring the stable use of the dry-type transformer;

[0018] 2. The utility model can effectively insulate the base and the dry-type transformer by combining the auxiliary insulation component and the auxiliary connection component to avoid leakage of the dry-type transformer, thereby ensuring the personal safety of the staff and avoiding damage to the dry-type transformer due to leakage, thereby increasing the service life of the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A partial cross-sectional view of

[0022] Figure 3 It is a structural schematic diagram of the transformer body of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the auxiliary fixing assembly of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the auxiliary insulation component of the utility model;

[0025] In the figure: 1. base; 2. push rod; 3. transformer body; 31. dry-type transformer; 32. terminal; 33. grounding terminal; 4. auxiliary fixing assembly; 41. auxiliary fixing block; 42. plug-in rod; 43. trapezoidal block; 44. extrusion spring; 5. auxiliary insulation assembly; 51. insulation plate; 52. plug-in block; 53. guide block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-Figure 3A dry-type test transformer shown in the figure comprises: a base 1, a transformer body 3 is arranged on the top of the base 1, and a push rod 2 is installed on one side of the base 1; the transformer body 3 comprises a dry-type transformer 31 installed on the top of the base 1 and a terminal 32 installed at one end of the dry-type transformer 31 close to the push rod 2; a grounding component is arranged at one end of the dry-type transformer 31 close to the push rod 2, and the grounding component comprises a grounding terminal 33 installed at one end of the dry-type transformer 31 close to the push rod 2.

[0028] As can be seen from the above, when in use, the dry-type transformer 31 is first installed between the base 1, and then the circuits to be connected are respectively connected to the terminal 32 and the ground terminal 33, so that the dry-type transformer 31 can be used. Then the staff holds the push rod 2 and pushes the push rod 2 at the same time, and then moves the base 1 to move the dry-type transformer 31 to a suitable position to realize the use of the dry-type transformer 31.

[0029] refer to Figure 1 , Figure 2 and Figure 4 As shown, an auxiliary fixing component 4 includes auxiliary fixing blocks 41 installed on both sides of the transformer body 3 and a receiving groove opened on the base 1, an insertion rod 42 is inserted on the auxiliary fixing block 41, and the end of the insertion rod 42 close to the base 1 is inserted into the receiving groove; an auxiliary limiting component is arranged inside the base 1, the auxiliary limiting component includes a placement groove opened inside the base 1 and a trapezoidal block 43 installed inside the placement groove, a limiting groove is arranged on the insertion rod 42, and the end of the trapezoidal block 43 away from the placement groove is inserted into the limiting groove; a reset component is arranged inside the placement groove, the reset component includes an extrusion spring 44 installed inside the placement groove, and the extrusion spring 44 is inside the placement groove.

[0030] Through the above technical solution:

[0031] When the dry-type transformer 31 needs to be installed with the base 1, the dry-type transformer 31 is first placed on the base 1, and then the receiving groove is aligned with the insertion rod 42, and then the staff pushes the insertion rod 42 downward so that the insertion rod 42 is inserted into the receiving groove, and the trapezoidal block 43 is pushed by the insertion rod 42 to move the trapezoidal block 43 into the placement groove, and pushes the extrusion spring 44 to squeeze, and then the insertion rod 42 continues to push downward to align the limit groove with the placement groove, and then the trapezoidal block 43 is reset by the resilience of the extrusion spring 44, so that the trapezoidal block 43 is inserted into the limiting groove to limit the insertion rod 42, and further realizes the installation and limiting fixation between the dry-type transformer 31 and the base 1, so as to facilitate the disassembly and assembly between the dry-type transformer 31 and the base 1 by the staff, so as to improve the maintenance efficiency of the dry-type transformer 31 by the staff, and further reduce the workload of the staff. When the dry-type transformer 31 and the base 1 need to be disassembled, the above operation is reversed to complete the disassembly between the dry-type transformer 31 and the base 1, so as to facilitate the maintenance of the dry-type transformer 31.

[0032] In addition, refer to Figure 1 , Figure 2 and Figure 5 As shown, an auxiliary insulation component 5 is arranged between the dry-type transformer 31 and the base 1, and the auxiliary insulation component 5 includes an insulation plate 51 installed at the bottom of the dry-type transformer 31; an auxiliary connection component is arranged between the insulation plate 51 and the base 1, and the auxiliary connection component includes a plug-in slot opened on the base 1 and a plug-in block 52 installed at the bottom of the insulation plate 51, and guide blocks 53 are fixed on both sides of the plug-in block 52, and a guide slot is opened on the base 1, and the guide block 53 is located in the guide slot.

[0033] Through the above technical solution:

[0034] When in use, first push the insulating plate 51 so that the plug-in block 52 and the guide block 53 are respectively inserted into the plug-in groove and the guide groove to complete the installation of the insulating plate 51 and the base 1, so that the dry-type transformer 31 can be effectively insulated on the base 1 when in use, so as to avoid leakage of the dry-type transformer 31, to ensure the personal safety of the staff during installation, and to avoid damage to the dry-type transformer 31 due to leakage, so as to increase the service life of the dry-type transformer 31.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dry-type test transformer, characterized in that: include: A base (1), a transformer body (3) is arranged on the top of the base (1), and a push rod (2) is installed on one side of the base (1); An auxiliary fixing assembly (4), the auxiliary fixing assembly (4) comprising auxiliary fixing blocks (41) mounted on both sides of the transformer body (3) and a receiving groove provided on the base (1), an insertion rod (42) being inserted into the auxiliary fixing block (41), and an end of the insertion rod (42) close to the base (1) being inserted into the receiving groove.

2. The dry-type test transformer according to claim 1, characterized in that: An auxiliary limiting assembly is arranged inside the base (1), and the auxiliary limiting assembly comprises a placement slot provided inside the base (1) and a trapezoidal block (43) installed inside the placement slot. The insertion rod (42) is provided with a limiting slot, and one end of the trapezoidal block (43) away from the placement slot is inserted into the limiting slot.

3. The dry-type test transformer according to claim 2, characterized in that: A reset component is arranged inside the placement groove, and the reset component comprises a pressing spring (44) installed inside the placement groove, and the pressing spring (44) is located inside the placement groove.

4. The dry-type test transformer according to claim 1, characterized in that: The transformer body (3) comprises a dry-type transformer (31) mounted on the top of the base (1) and a connection terminal (32) mounted on one end of the dry-type transformer (31) close to the push rod (2).

5. The dry-type test transformer according to claim 4, characterized in that: A grounding component is provided at one end of the dry-type transformer (31) close to the push rod (2), and the grounding component comprises a grounding terminal (33) installed at one end of the dry-type transformer (31) close to the push rod (2).

6. The dry-type test transformer according to claim 5, characterized in that: An auxiliary insulation component (5) is arranged between the dry-type transformer (31) and the base (1), and the auxiliary insulation component (5) comprises an insulation plate (51) installed at the bottom of the dry-type transformer (31).

7. The dry-type test transformer according to claim 6, characterized in that: An auxiliary connection component is provided between the insulating plate (51) and the base (1), the auxiliary connection component comprising a plug-in slot provided on the base (1) and a plug-in block (52) installed at the bottom of the insulating plate (51), guide blocks (53) being fixed on both sides of the plug-in block (52), a guide slot being provided on the base (1), and the guide block (53) being located in the guide slot.

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