Transformer Inrush Current Suppression Equipment Assembly

Abstract

Provided is a transformer exciting inrush current suppression equipment assembly that realizes the cleaning ability of the mesh ventilation opening by utilizing natural wind power, ensures the cleaning functions of smog and windblown sand, and realizes the fall of attached dust. 【Solution means】 The transformer exciting inrush current suppression equipment assembly includes a transformer 1, a mesh ventilation opening 2 is fixedly attached to the side wall of the transformer, a stopper chute 3 is provided on the inner wall of the transformer, a slide lever 4 is slidably connected inside the stopper chute, a rotating piece 5 with dust is rotatably attached to the side wall of the slide lever, an interlocking block is fixedly attached to the side wall of the slide lever, a fixed plate 7 is attached to the side wall of the transformer, and an interlocking spring is fixedly attached between the fixed plate and the interlocking block. The present invention utilizes the interaction between the slide lever, the rotating piece with dust, the fixed plate, the interlocking spring and the pneumatic assembly, and between the dust collection tank and the rotating piece with dust.

Description

Technical Field

[0001] The present invention relates to the field of transformer technology, and particularly to a transformer exciting inrush current suppression equipment assembly.

Background Art

[0002] A transformer is a very important electrical equipment in the power system and is also called a step-up transformer. Whether this device operates normally directly affects the safety of electrical equipment, but the power grid has different demands on the transformer. A test transformer is suitable for performing insulation strength tests on various high-voltage electrical equipment, electrical components, and insulating materials such as power systems, industrial and mining enterprises, and scientific research departments at commercial frequency or DC high voltage, and is an important equipment indispensable for high-voltage tests. For example, a dry-type test transformer has characteristics such as being lightweight, small-sized, rewoundable, maintenance-free, and high cost.

[0003] In conventional transformers, the suppression of exciting inrush current was optimized by installing external circuits. However, during the use of the transformer, especially in areas with severe smog, dust deposition at its ventilation openings is very likely to occur, affecting the normal use of internal components. Regularly cleaning the artificial ventilation openings is not only troublesome but also poses safety concerns.

[0004] To solve the above problems, a transformer exciting inrush current suppression equipment assembly was proposed.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention is to propose a transformer exciting inrush current suppression equipment assembly to solve the drawbacks existing in the prior art.

Means for Solving the Problems

[0006] To achieve the above object, the present invention adopts the following technical solutions.

[0007] A transformer exciting inrush current suppression equipment assembly including a transformer, wherein a mesh ventilation opening is fixedly attached to the side wall of the transformer, a stopper chute is provided on the inner wall of the transformer, a slide lever is slidably connected inside the stopper chute, a rotating piece with dust is rotatably attached to the side wall of the slide lever, an interlocking block is fixedly attached to the side wall of the slide lever, a fixed plate is fixedly attached to the side wall of the transformer, an interlocking spring is fixedly attached between the fixed plate and the interlocking block, a stopper slide ring is fixedly attached to the end of the slide bar far from the stopper chute 3, a dust collection tank is fixedly attached to the side wall of the transformer, and a pneumatic assembly is attached to the lower end of the transformer. The transformer exciting inrush current suppression equipment assembly is characterized by the above.

[0008] Preferably, the pneumatic assembly includes a screwdriver lever that screws with the stopper slide ring, a rotating fan blade is fixedly connected to the lower end of the screwdriver lever, the screwdriver lever is rotatably connected to the side wall of the lower end of the transformer, and a stopper ring is fixedly attached to the side wall of one end of the screwdriver lever near the rotating fan blade.

[0009] Preferably, the slide bar is closely abutted against the side wall of the stopper chute, the cross-sectional diameter of the side wall of the connection end of the slide bar and the stopper chute is the same as the opening width of the stopper chute, and the stopper chute limits the position of the slide lever.

[0010] Preferably, the inner wall of the stopper slide ring is provided with a screw structure, and there is always contact between the side wall of the stopper slide ring and the side wall of the screwdriver lever. The two rotating pieces with dust are symmetrically provided with respect to the center line in the horizontal cross section of the interlocking block. The horizontal length between the two rotating pieces with dust and the interlocking block is larger than the horizontal installation width of the mesh vent. In the initial state, there is adhesion between the rotating piece with dust and the side wall of the transformer, and the transformer is located on the same vertical plane as the inner wall of the mesh vent.

[0011] Preferably, the dust collection tank is provided at the lower end of the mesh vent, and the opening width of the internal notch of the dust collection tank is larger than the horizontal installation width of the mesh vent.

[0012] Preferably, it is slidably connected between the lower end of the stopper ring and the inner wall of the lower end of the transformer, and there is close contact between the lower end of the stopper ring and the inner wall of the lower end of the transformer.

Advantages of the Invention

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows 1. By the cooperative action among the slide lever, the rotating piece with dust, the fixed plate, the interlocking spring and the pneumatic assembly, the present utility model realizes the cleaning ability of the mesh vent by utilizing the traction of natural wind force, and ensures the accompanying cleaning function in smog and sandstorm areas. 2. Through the interaction between the dust collection tank and the rotating piece with dust, the present invention gives a cleaning limit to the rotating piece with dust and at the same time realizes the falling of the adhering dust by using the impact force.

[0014] As described above, the present invention realizes the cleaning ability of the mesh ventilation opening by utilizing the natural wind power propulsion through the cooperative action among the slide lever, the rotating piece with dust, the fixed plate, the interlocking spring and the pneumatic assembly, ensures the accompanying cleaning function in smog and sandstorm areas, and realizes the falling of the adhering dust by utilizing the collision force while reaching the cleaning limit of the rotating piece with dust through the interaction between the dust collection tank and the rotating piece with dust.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0016] Hereinafter, with reference to the drawings of the embodiments of the present invention, the technical means in the embodiments of the present invention will be clearly and completely described. It is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

[0017] Referring to FIGS. 1 to 4, a transformer exciting inrush current suppression equipment assembly including a transformer 1, wherein a mesh ventilation opening 2 is fixedly attached to the side wall of the transformer 1, a stopper chute 3 is provided on the inner side wall of the transformer 1, a slide lever 4 is slidably connected inside the stopper chute 3, a rotating piece 5 with dust is rotatably attached to the side wall of the slide lever 4, an interlocking block 6 is fixedly attached to the side wall of the slide lever 4, a fixed plate 7 is fixedly attached to the side wall of the transformer 1, an interlocking spring 8 is fixedly attached between the fixed plate 7 and the interlocking block 6, a stopper slide ring 9 is fixedly attached to the end of the slide bar 4 far from the stopper chute 3, a dust collection tank 10 is fixedly attached to the side wall of the transformer 1, and a pneumatic assembly is attached to the lower end of the transformer 1. A transformer exciting inrush current suppression equipment assembly is characterized by this.

[0018] The pneumatic assembly includes a screwdriver lever 11 that screws with the stopper slide ring 9, a rotating fan blade 12 is fixedly connected to the lower end of the screwdriver lever 11, the screwdriver lever 11 is rotatably connected to the side wall of the lower end of the transformer 1, and a stopper ring 13 is fixedly attached to the side wall of one end of the screwdriver lever 11 near the rotating fan blade.

[0019] The slide bar 4 is in close contact with the side wall of the stopper chute 3, and the cross-sectional diameter of the side wall of the connection end of the slide bar 4 and the stopper chute 3 is the same as the opening width of the stopper chute 3. The stopper chute 3 limits the position of the slide lever 4.

[0020] The inner wall of the stopper slide ring 9 is provided with a screw structure and is always in contact with the side wall of the screw-turning lever 11. The two rotating pieces 5 with dust are symmetrically arranged with respect to the center line in the horizontal cross-section of the interlocking block 6. The horizontal length between the two rotating pieces 5 with dust and the interlocking block 6 is greater than the horizontal installation width of the mesh ventilation opening 2. In the initial state, adhesion occurs between the rotating piece 5 with dust and the side wall of the transformer 1, and the transformer 1 is located on the same vertical plane as the inner wall of the mesh ventilation opening 2.

[0021] The dust collection tank 10 is provided at the lower end of the mesh ventilation opening 2, and the opening width of the internal notch of the dust collection tank 10 is greater than the horizontal installation width of the mesh ventilation opening 2.

[0022] It is slidably connected between the lower end of the stopper ring 13 and the inner wall of the lower end of the transformer 1, and is in close contact between the lower end of the stopper ring 13 and the inner wall of the lower end of the transformer 1.

[0023] The specific operating principle of the present invention is as follows.

[0024] This device is mainly used in areas with severe wind sand and smog. Among them, the rotating fan blade 12 is made of a lightweight insulating material, and an insulating cover is installed at the outer end of the interlocking spring 8.

[0025] As can be seen from FIGS. 1 and 2, when natural wind passes through, the rotating fan blade 12 rotates. At this time, as the rotating fan blade 12 rotates, the screw-turning lever 11 rotates simultaneously. Since the stopper slide ring 9 and the screw-turning lever 11 are screwed together, at this time, the rotation of the screw-turning lever 11 causes the stopper slide ring 9 to operate downward, and the slide lever 4 slides downward. Due to the stopper action of the stopper shoot 3 and the screw-turning lever 11, the slide lever 4 will not shift during the process of sliding downward. During the sliding process, since the rotating piece 5 with dust and the slide lever 4 are rotationally connected, the rotating piece 5 with dust rolls during this process.

[0026] In the initial state, since the transformer 1 and the inner wall of the mesh vent 2 are located on the same vertical plane between the rotating piece 5 with dust and the side wall of the transformer 1, during the process of the slide lever 4 descending, the rotating piece 5 with dust rolls in close contact with the side wall of the transformer 1. If the movement continues, it is considered to come into contact with the mesh vent 2 and the dust on the mesh vent 2 is adhered and processed.

[0027] As the slide bar 4 continues to move downward, the rotating piece 5 with dust collides with the dust collection tank 10 at the lower end. At this time, although the wind pressure from the outside continues to be applied, due to the stopper action of the dust collection tank 10, the slide lever 4 does not move downward any further and the rotating fan blade 12 does not rotate. And in this process, due to the collision action between the rotating piece 5 with dust and the dust collection tank 10, a part of the dirt adhering to the rotating piece 5 with dust falls off and is collected.

[0028] When the wind force ends, due to the spring force of the interlocking spring 8, the interlocking block 6 is pulled up to start moving, the slide lever 4 is pulled up to perform a return operation, and the rotating fan blade 12 starts to reverse until it returns to its original position. When the rotating fan blade 12 rotates directly due to the wind pressure, the topper slide ring 9 acts upward, but since there is a limit to the degree of deformation of the interlocking spring 8, there will be no disengagement between the topper slide ring 9 and the screw rotating lever 11.

[0029] From the above, the present invention realizes the cleaning ability of the mesh vent 2 by utilizing the traction of natural wind force through the cooperative action between the slide lever 4, the rotating piece 5 with dust, the fixed plate 7, the interlocking spring 8 and the pneumatic assembly, and ensures the accompanying cleaning function in smog and sandstorm areas. Also, through the interaction between the dust collection tank 10 and the rotating piece 5 with dust, while realizing the cleaning limit of the rotating piece 5 with dust, the falling of the adhering dust due to the impact force is achieved.

[0030] The preferred specific embodiments of the present invention are described above. However, the protection scope of the present invention is not limited thereto. Within the technical scope disclosed in the present invention, equivalent substitutions or modifications based on the technical solution and the inventive concept of the present invention shall be included within the protection scope of the present invention.

Description of Reference Numerals

[0031] 1 Transformer 2 Mesh Vent 3 Stopper Shoot 4 Slide Lever 5 Rotating Piece with Dust 6 Interlocking Block 7 Fixed Plate 8 Interlocking Spring 9 Stopper Slide Ring 10 Dust Collection Tank 11 Screwdriver Lever 12 Rotating Fan Blade 13 Stopper Ring

Claims

1. A transformer exciting inrush current suppression equipment assembly including a transformer (1), wherein a mesh ventilation opening (2) is fixedly attached to a side wall of the transformer (1), a stopper chute (3) is provided on an inner side wall of the transformer (1), a slide lever (4) is slidably connected inside the stopper chute (3), a dust-attached rotating piece (5) is rotatably attached to a side wall of the slide lever (4), an interlocking block (6) is fixedly attached to a side wall of the slide lever (4), a fixed plate (7) is fixedly attached to a side wall of the transformer (1), an interlocking spring (8) is fixedly attached between the fixed plate (7) and the interlocking block (6), a stopper slide ring (9) is fixedly attached to an end of the slide bar (4) far from the stopper chute (3), a dust collection tank (10) is fixedly attached to a side wall of the transformer (1), and a pneumatic assembly is attached to a lower end of the transformer (1). The transformer exciting inrush current suppression equipment assembly is characterized by the above.

2. The pneumatic assembly includes a screwdriver lever (11) that is screwed with the stopper slide ring (9), a rotary fan blade (12) is fixedly connected to a lower end of the screwdriver lever (11), the screwdriver lever (11) is rotatably connected between a side wall of a lower end of the transformer (1), and a stopper ring (13) is fixedly attached to a side wall of one end of the screwdriver lever (11) near the rotary fan blade. The transformer exciting inrush current suppression equipment assembly according to Claim 1 is characterized by the above.

3. A side wall between the slide bar (4) and a side wall of the stopper chute (3) is closely abutted, a cross-sectional diameter of a side wall of a connection end between the slide bar (4) and the stopper chute (3) is the same as an opening width of the stopper chute (3), and the stopper chute (3) limits a position of the slide lever (4). The transformer exciting inrush current suppression equipment assembly according to Claim 1 is characterized by the above.

4. The inner wall of the stopper slide ring (9) is provided with a screw structure, and there is always contact between the side wall of the stopper slide ring (9) and the side wall of the screwdriver lever (11). The two rotating pieces with dust (5) are symmetrically provided with respect to the center line in the horizontal cross-section of the interlocking block (6). The horizontal length between the two rotating pieces with dust (5) and the interlocking block (6) is larger than the horizontal installation width of the mesh ventilation opening (2). In the initial state, bonding occurs between the rotating piece with dust (5) and the side wall of the transformer (1). The transformer (1) is positioned on the same vertical plane as the inner wall of the mesh ventilation opening (2). The transformer exciting inrush current suppression equipment assembly according to claim 1, characterized in that.

5. The dust collection tank (10) is provided at the lower end of the mesh ventilation opening (2). The opening width of the internal notch of the dust collection tank (10) is larger than the horizontal installation width of the mesh ventilation opening (2). The transformer exciting inrush current suppression equipment assembly according to claim 1, characterized in that.

6. It is slidably connected between the lower end of the stopper ring (13) and the inner wall of the lower end of the transformer (1), and the lower end of the stopper ring (13) and the inner wall of the lower end of the transformer (1) are in close contact. The transformer exciting inrush current suppression equipment assembly according to claim 2, characterized in that.

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