A no-load voltage regulating dry-type transformer with a tapping voltage terminal protection cover

Abstract

The utility model discloses a no excitation voltage regulation dry type transformer with tapping voltage terminal protection cover, including the coil, the one side of coil is equipped with the tapping insulation panel, and a plurality of tapping binding posts are arranged in parallel along the straight line on the tapping insulation panel, and a plurality of tapping binding posts are connected in series through the conversion tapping piece head to tail connection, the protection cover is equipped with above a plurality of tapping binding posts, and the protection cover is inverted on the tapping binding post top through, the protection cover is fixedly connected with the coil through at least one fixed bolt, the utility model discloses the insulation protection cover of adding at the tapping voltage terminal of original transformer coil side wall, avoids the water vapor or the dirtiness and enters the inside of tapping voltage terminal, thereby improves the safety performance of transformer.

Description

Technical Field

[0001] This utility model relates to the technical field of non-excitation voltage regulating dry-type transformer structure, and in particular to a non-excitation voltage regulating dry-type transformer with a tap voltage terminal protection cover. Background Technology

[0002] Transformers are key equipment in power transmission and distribution systems. Due to voltage fluctuations in the power grid, in order to ensure that electrical equipment has a stable voltage, it is necessary to adjust the number of turns of the transformer input coil when the system voltage fluctuates significantly. This adjustment is necessary to adapt to the fluctuations in the grid voltage and match the coil voltage to prevent damage to electrical equipment caused by overvoltage or undervoltage at the output line.

[0003] Currently, the voltage terminals of dry-type transformers are exposed on the coil surface, posing a certain electrical safety risk during transformer operation. In damp or heavily polluted conditions, discharge can easily occur, affecting the transformer's operational safety. To improve the safety performance of transformers, insulating protective covers are needed at the voltage terminals of dry-type transformers. Utility Model Content

[0004] The purpose of this invention is to provide a non-excitation voltage regulating dry-type transformer with a protective cover for the tap voltage terminals, thereby improving the electrical safety performance at the tap voltage terminals of the dry-type transformer.

[0005] To solve the above technical problems, this utility model provides a non-excitation voltage regulating dry-type transformer with a tap voltage terminal protection cover, including a coil, a tap insulation panel is provided on one side of the coil, and multiple tap terminals are arranged parallel along a straight line on the tap insulation panel, and the multiple tap terminals are connected in series by connecting the ends of the tap changer.

[0006] A protective cover is provided above multiple tap terminals, and the protective cover is inverted and placed above the tap terminals;

[0007] The protective cover is fixedly connected to the coil by at least one fixing bolt.

[0008] Preferably, the protective cover has a rectangular structure and is made of insulating material.

[0009] Preferably, the protective cover has two mounting holes, and the two mounting holes are diagonally distributed.

[0010] Preferably, a fixing bolt is placed in each of the mounting holes, and the protective cover is fixedly installed to the side wall of the coil by the through fixing bolt.

[0011] Preferably, the fixing bolt is an insulating bolt.

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

[0013] This invention adds an insulating protective cover to the tap voltage terminals on the side wall of the original transformer coil to prevent moisture or dirt from entering the inside of the tap voltage terminals, thereby improving the safety performance of the transformer. Attached Figure Description

[0014] Figure 1 This is a front view of a dry-type transformer with a tap voltage terminal protection cover provided by this utility model.

[0015] Figure 2 This is a front view of the dry-type transformer with no excitation voltage regulation after the protective cover is opened, as provided by this utility model.

[0016] Figure 3 This is a side view of a dry-type transformer with a tap voltage terminal protection cover provided by this utility model.

[0017] Figure 4 This is a top view of a dry-type transformer with a tap voltage terminal protection cover provided by this utility model.

[0018] Figure 5 This is a front view of the protective cover provided by this utility model;

[0019] Figure 6 This is a side view of the protective cover provided by this utility model.

[0020] In the diagram: 1. Coil; 2. Tap terminal; 3. Transformer tap; 4. Protective cover; 5. Fixing bolt; 401. Mounting hole. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0024] This utility model provides a non-excitation voltage regulating dry-type transformer with a tap voltage terminal protection cover. Please refer to [link / reference]. Figure 1-4 The transformer includes a coil 1, with a tap insulation panel on one side. Multiple tap terminals 2 are arranged parallel to each other along a straight line on the tap insulation panel. These multiple tap terminals 2 are connected in series via conversion tap pieces 3. A protective cover 4 is provided above the multiple tap terminals 2, and is inverted and attached to the tap terminals 2. The protective cover 4 is fixedly connected to the coil 1 by at least one fixing bolt 5. Adding an insulation protective cover to the existing tap voltage terminals on the side wall of the transformer coil prevents moisture or dirt from entering the tap voltage terminals, thereby improving the safety performance of the transformer.

[0025] For details, please refer to Figure 5 and Figure 6 The protective cover 4 has a rectangular structure and is made of insulating material; the protective cover 4 has two mounting holes 401, and the two mounting holes 401 are diagonally distributed.

[0026] Furthermore, a fixing bolt 5 is placed in each of the mounting holes 401, and the protective cover 4 is fixedly installed on the side wall of the coil 1 by the through fixing bolt 5.

[0027] In this embodiment, the fixing bolt 5 is an insulating bolt.

[0028] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A dry-type transformer with a tap voltage terminal protection cover, characterized in that, Includes a coil (1), one side of which is provided with a tap insulation panel, and multiple tap terminals (2) are arranged parallel along a straight line on the tap insulation panel. The multiple tap terminals (2) are connected in series end to end through a conversion tap piece (3). A protective cover (4) is provided above multiple tap terminals (2), and the protective cover (4) is inverted and placed above the tap terminals (2); The protective cover (4) is fixedly connected to the coil (1) by at least one fixing bolt (5).

2. A dry-type transformer with tap voltage terminal protection cover as described in claim 1, characterized in that, The protective cover (4) is a rectangular structure and is made of insulating material.

3. A dry-type transformer with a tap voltage terminal protection cover as described in claim 2, characterized in that, The protective cover (4) has two mounting holes (401) and the two mounting holes (401) are diagonally distributed.

4. A dry-type transformer with a tap voltage terminal protection cover as described in claim 3, characterized in that, A fixing bolt (5) is placed in each of the mounting holes (401) to fix the protective cover (4) to the side wall of the coil (1) by means of the through fixing bolt (5).

5. A dry-type transformer with a tap voltage terminal protection cover as described in claim 1, characterized in that, The fixing bolt (5) is an insulating bolt.

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