A power transformer protection cover structure

Abstract

The utility model relates to the technical field of power transformer, and disclose a kind of power transformer protective cover structure, including power transformer body, the both sides of the surface of power transformer body are fixed with support block, the surface of support block is fixed with connecting rod, the surface of connecting rod is fixed with a plurality of first umbrella skirt, the surface of connecting rod is fixed with a plurality of second umbrella skirt;The utility model in the daily use of power transformer body, first umbrella skirt and second umbrella skirt, under the action of first umbrella skirt and second umbrella skirt inclination, water is primarily guided, and under the action of water guide mechanism, water is guided twice, to avoid water curtain on the surface of first umbrella skirt and second umbrella skirt, improve the practicability of first umbrella skirt and second umbrella skirt, in addition, under the action of heating wire, snow on the surface of first umbrella skirt and second umbrella skirt can be accelerated melting, improve the practicability of the device in snow area.

Description

Technical Field

[0001] This utility model relates to the field of power transformer technology, specifically to a protective cover structure for a power transformer. Background Technology

[0002] A power transformer is a special type of transformer that is an indispensable key measurement and protection device in a power system. Its main function is not to transmit energy, but to transform voltage and current so that measuring instruments, relay protection devices, and control equipment can be safely and conveniently connected to the high-voltage, high-current power grid.

[0003] The surface of the protective cover of a power transformer is usually equipped with a skirt. The edge of the skirt forms an electric field distortion zone, which can suppress partial discharge. However, in snowy and rainy areas, water will fall on the surface of the skirt. Since the skirt is arranged in sequence, there is no water guide on its surface. As a result, the skirts arranged in sequence may form a water curtain, which may lead to the insulation failure of the power transformer. Utility Model Content

[0004] The purpose of this utility model is to provide a protective cover structure for a power transformer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective cover structure for a power transformer, comprising a power transformer body, with support blocks fixed on both sides of the surface of the power transformer body, a connecting rod fixed on the surface of the support blocks, a plurality of first skirts fixed on the surface of the connecting rod, and a plurality of second skirts fixed on the surface of the connecting rod, further comprising:

[0006] A water-guiding mechanism is provided on the surface of the second umbrella skirt, and a heating wire is provided in the inner cavity of the second umbrella skirt.

[0007] Preferably, the first and second umbrella skirts are of different sizes and are arranged alternately.

[0008] Preferably, the water guiding mechanism includes an arc-shaped groove formed on the surface of the second umbrella skirt and a water outlet formed on one side of the surface of the second umbrella skirt, wherein the arc-shaped groove and the water outlet are connected.

[0009] Preferably, the surface of the first umbrella skirt is provided with a fluorine-free environmentally friendly waterproofing agent, and the surface of the second umbrella skirt is also provided with a fluorine-free environmentally friendly waterproofing agent.

[0010] Preferably, water guide blocks are fixed on both sides of the surface of the power transformer body, and water guide grooves are formed on the surface of the water guide blocks.

[0011] Preferably, the water guide channel is inclined and the drip point is far away from the power transformer body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In the daily use of the power transformer body, the first umbrella skirt, and the second umbrella skirt, this utility model can initially guide water under the tilting action of the first and second umbrella skirts, and then guide water a second time under the action of the water guiding mechanism, thereby preventing water from forming a water curtain on the surface of the first and second umbrella skirts and improving the practicality of the first and second umbrella skirts. In addition, under the action of the heating wire, the snow on the surface of the first and second umbrella skirts can be melted more quickly, improving the practicality of this device in snowy areas. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front view schematic diagram of the structure in this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0017] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0018] In the diagram: 1. Power transformer body; 2. Support block; 3. Connecting rod; 4. First umbrella skirt; 5. Second umbrella skirt; 6. Water guide block; 7. Water guide groove; 8. Water guide mechanism; 81. Arc groove; 82. Water outlet; 9. Heating wire. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4As shown, a protective cover structure for a power transformer includes a power transformer body 1. Support blocks 2 are fixed to both sides of the surface of the power transformer body 1. Connecting rods 3 are fixed to the surface of the support blocks 2. Several first umbrella skirts 4 and several second umbrella skirts 5 are fixed to the surface of the connecting rods 3. The first umbrella skirts 4 and second umbrella skirts 5 are of different sizes and are arranged alternately. The difference in size between the first umbrella skirts 4 and second umbrella skirts 5 prevents water from dripping sequentially, thus preventing the formation of a water curtain. The surface of the first umbrella skirts 4 is coated with a fluorine-free environmentally friendly waterproofing agent, and the surface of the second umbrella skirts 5 is also coated with a fluorine-free environmentally friendly waterproofing agent, increasing the water drainage speed and improving the practicality of the device.

[0021] A water guiding mechanism 8 is provided on the surface of the second umbrella skirt 5. The water guiding mechanism 8 includes an arc-shaped groove 81 opened on the surface of the second umbrella skirt 5 and a water outlet 82 opened on one side of the surface of the second umbrella skirt 5. The arc-shaped groove 81 and the water outlet 82 are connected. When there is water on the surface of the second umbrella skirt 5, the water can be guided by the arc-shaped groove 81 and discharged by the water outlet 82, thereby preventing water from being discharged irregularly from the surfaces of the second umbrella skirt 5 and the first umbrella skirt 4.

[0022] The inner cavity of the second umbrella skirt 5 is equipped with a heating wire 9.

[0023] Water guide blocks 6 are fixed on both sides of the surface of the power transformer body 1. Water guide grooves 7 are opened on the surface of the water guide blocks 6. In this embodiment, by setting the water guide blocks 6 and the water guide grooves 7, when water drips from the first umbrella skirt 4 and the second umbrella skirt 5, the water can be guided outward under the action of the water guide blocks 6 and the water guide grooves 7, so as to prevent the dripping water from approaching the power transformer body 1.

[0024] The water guide channel 7 is inclined and the drip point is far away from the power transformer body 1. In this embodiment, this setting improves the water guiding effect of the water guide channel 7 and enhances the practicality of the device.

[0025] Working principle: In daily use of the power transformer body 1, under the action of the first shed 4 and the second shed 5, the creepage distance of the current along the leakage path of the insulation surface is increased by 2-5 times compared with the straight distance. The working principle is existing technology and will not be described in detail here.

[0026] In snowy weather, the snow on the surface of the first umbrella skirt 4 and the second umbrella skirt 5 can be melted by the heating wire 9. The melted water is discharged through the arc groove 81 and drips onto the surface of the water guide groove 7 through the water outlet 82 and is discharged. In addition, the first umbrella skirt 4 and the second umbrella skirt 5 are different in size and are arranged alternately, which enhances the drainage effect and avoids water from being discharged irregularly and forming a large area of ​​water curtain.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] 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 protective cover structure for a power transformer, comprising a power transformer body (1), characterized in that: The power transformer body (1) has support blocks (2) fixed on both sides of its surface. A connecting rod (3) is fixed to the surface of each support block (2). Several first skirts (4) are fixed to the surface of each connecting rod (3). Several second skirts (5) are fixed to the surface of each connecting rod (3). The transformer also includes: A water guiding mechanism (8) is provided on the surface of the second umbrella skirt (5), and a heating wire (9) is provided in the inner cavity of the second umbrella skirt (5).

2. The protective cover structure for a power transformer according to claim 1, characterized in that: The first umbrella skirt (4) and the second umbrella skirt (5) are different in size and are arranged alternately.

3. The protective cover structure for a power transformer according to claim 2, characterized in that: The water guiding mechanism (8) includes an arc-shaped groove (81) opened on the surface of the second umbrella skirt (5) and a water outlet (82) opened on one side of the surface of the second umbrella skirt (5), and the arc-shaped groove (81) and the water outlet (82) are connected.

4. The protective cover structure for a power transformer according to claim 1, characterized in that: The surface of the first umbrella skirt (4) is provided with a fluorine-free environmentally friendly waterproofing agent, and the surface of the second umbrella skirt (5) is also provided with a fluorine-free environmentally friendly waterproofing agent.

5. The protective cover structure for a power transformer according to claim 1, characterized in that: Water guide blocks (6) are fixed on both sides of the surface of the power transformer body (1), and water guide grooves (7) are opened on the surface of the water guide blocks (6).

6. The protective cover structure for a power transformer according to claim 5, characterized in that: The water guide channel (7) is inclined and the drip point is far away from the power transformer body (1).

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