Power transformer integrated with grounding transformer

Abstract

The utility model discloses a power transformer integrated with a grounding transformer. The power transformer comprises a protection box; the power transformer body is arranged in the protection box; and the cooling box is arranged on the protection box, a cooling device is installed at the upper end of the cooling box, a water suction pump is installed on one side of the cooling box, and a heat absorption frame is installed at the top of the interior of the protection box. The cooling device is started, the cooling device cools cooling water in the cooling box, meanwhile, the driving motor is started, the stirring blades rotate in the cooling box, it is guaranteed that the cooling water is cooled evenly, then the water suction pump is started, the cooling water in the cooling box is pumped into the heat absorption frame, the fan is started, and air outside the protection box is blown into the protection box. Entering gas is in contact with the outer surface of the heat absorption frame, so that the air is cooled, the power transformer body is rapidly and effectively cooled, the heat dissipation efficiency of the power transformer body is improved, and the service life of the power transformer body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of power transformer technology, specifically to a power transformer with an integrated grounding transformer. Background Technology

[0002] An integrated grounding transformer is a special type of transformer assembly that integrates a grounding transformer into a power transformer. It is mainly used in power systems where the neutral point is not grounded, so that the fault current can be promptly and effectively conducted to the ground when a system fault occurs. By connecting a grounding transformer to the low-voltage side of the power transformer, a neutral point is artificially established, and an arc suppression coil is connected to the neutral point. This can reduce the ground fault current, ensure reliable operation of the grounding protection, and thus improve the power supply reliability of the system.

[0003] Currently, power transformers with integrated grounding transformers generate heat during use. Existing heat dissipation methods involve installing a cooling fan to accelerate the airflow around the power transformer and achieve heat dissipation. However, in hot weather, this heat dissipation method cannot effectively and quickly dissipate heat from the power transformer, thus limiting its use. Utility Model Content

[0004] The purpose of this invention is to provide a power transformer with an integrated grounding 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 power transformer with an integrated grounding transformer, comprising: a protective box; a power transformer body disposed inside the protective box; a cooling box disposed on the protective box, wherein a cooling device is installed at the upper end of the cooling box, a water pump is installed on one side of the cooling box, a heat absorption frame is installed at the top inside the protective box, the output end of the water pump is fixedly connected to the input end of the heat absorption frame, and the output end of the heat absorption frame is fixedly connected to one side of the cooling box; and a fan disposed on the protective box.

[0006] As a further preferred embodiment of this technical solution, a second heat-absorbing plate is installed on one side of the inner wall of the protective box, and a first heat-absorbing plate is installed on the other side of the inner wall of the protective box. The first heat-absorbing plate and the second heat-absorbing plate form an S-shaped channel inside the protective box.

[0007] As a further preferred embodiment of this technical solution, heat dissipation fins are fixedly connected to one side of both the second heat-absorbing plate and the first heat-absorbing plate.

[0008] As a further preferred embodiment of this technical solution, a mounting bracket is disposed on the protective box, and a filter plate is slidably connected to the inner wall of the mounting bracket.

[0009] As a further preferred embodiment of this technical solution, a buffer pad is disposed on the power transformer body.

[0010] As a further preferred embodiment of this technical solution, a drive motor is installed on one side of the cooling box, and a rotating rod is driven to the output end of the drive motor. A stirring blade is installed on the outer surface of the rotating rod.

[0011] As a further preferred embodiment of this technical solution, the upper end of the cooling box is fixedly connected to a feeding pipe, and a sealing cap is threaded onto the outer surface of the feeding pipe.

[0012] This utility model provides a power transformer with an integrated grounding transformer, which has the following beneficial effects:

[0013] (1) This utility model cools the cooling water in the cooling box by turning on the cooling device, and at the same time turns on the drive motor and the stirring blade rotates in the cooling box to ensure that the cooling water temperature is cooled evenly. Then, the water pump is turned on to pump the cooling water in the cooling box into the heat absorption rack. The fan is turned on to blow the outside air into the protective box. The incoming air comes into contact with the outer surface of the heat absorption rack, thereby cooling the air. This achieves rapid and effective cooling of the power transformer body, improving the heat dissipation efficiency and service life of the power transformer body.

[0014] (2) Through the structural design of heat-absorbing plate 2 and heat-absorbing plate 1, this utility model forms an S-shaped heat dissipation channel in the protective box, which increases the contact time between the air blown into the protective box and the heat-absorbing frame. At the same time, when the gas comes into contact with heat-absorbing plate 2 and heat-absorbing plate 1, it absorbs the heat of the air. This structural design can improve the heat dissipation of the power transformer body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle;

[0017] Figure 3 This is a schematic diagram of the internal structure of the protective box in this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the cooling box and the heat absorption frame in this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter plate in this utility model when it is disassembled on the mounting frame.

[0020] In the diagram: 1. Protective box; 2. Power transformer body; 3. Buffer pad; 4. Cooling box; 5. Mounting frame; 6. Filter plate; 7. Drive motor; 8. Heat absorption plate one; 9. Heat dissipation fins; 10. Fan; 11. Heat absorption plate two; 12. Heat absorption frame; 13. Water pump; 14. Sealing cover; 15. Rotating rod; 16. Stirring blade; 17. Cooling device; 18. Feeding pipe. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 - Figure 5 As shown, in this embodiment, a power transformer with an integrated grounding transformer includes: a protective box 1; a power transformer body 2, disposed inside the protective box 1; a cooling box 4, disposed on the protective box 1, with a cooling device 17 installed on the upper end of the cooling box 4, a water pump 13 installed on one side of the cooling box 4, a heat absorption frame 12 installed on the top inside the protective box 1, the output end of the water pump 13 being fixedly connected to the input end of the heat absorption frame 12, and the output end of the heat absorption frame 12 being fixedly connected to one side of the cooling box 4; and a fan 10, disposed on the protective box 1. Through the structural design of the heat absorption frame 12, when the fan 10 is turned on to blow the external air into the protective box 1, the cooling device 17 is turned on, and the cooling device 17 cools the cooling water in the cooling box 4. The cooled water is pumped into the heat absorption frame 12 by the water pump 13 for circulation, and the incoming air contacts the outer surface of the heat absorption frame 12, thereby cooling the air and achieving rapid and effective cooling of the power transformer body 2.

[0023] A heat-absorbing plate 211 is installed on one side of the inner wall of the protective box 1, and a heat-absorbing plate 8 is installed on the other side of the inner wall of the protective box 1. The heat-absorbing plate 8 and the heat-absorbing plate 211 form an S-shaped channel inside the protective box 1. Through the structural design of the heat-absorbing plate 211 and the heat-absorbing plate 8, an S-shaped heat dissipation channel is formed inside the protective box 1, which increases the contact time between the air blown into the protective box 1 and the heat-absorbing frame 12, effectively cooling the heat dissipation gas and improving the heat dissipation effect.

[0024] Heat dissipation fins 9 are fixedly connected to one side of heat absorber plate 2 11 and heat absorber plate 1 8. When the gas comes into contact with heat absorber plate 2 11 and heat absorber plate 1 8, it absorbs the heat of the air. This structural design can improve the heat dissipation of the power transformer body 2.

[0025] Mounting bracket 5 is installed on protective box 1. A filter plate 6 is slidably connected to the inner wall of mounting bracket 5. Through the structural design of filter plate 6, the gas entering protective box 1 can be filtered to prevent dust from affecting the use of power transformer body 2. At the same time, filter plate 6 can be removed from mounting bracket 5 for regular cleaning.

[0026] The buffer pad 3 is installed on the power transformer body 2. Through the structural design of the buffer pad 3, the vibration generated during the operation of the power transformer body 2 can be buffered.

[0027] A drive motor 7 is installed on one side of the cooling box 4. The output end of the drive motor 7 is connected to a rotating rod 15. A stirring blade 16 is installed on the outer surface of the rotating rod 15. By turning on the drive motor 7, the stirring blade 16 rotates inside the cooling box 4, ensuring that the cooling water inside the cooling box 4 is cooled evenly.

[0028] The upper end of the cooling tank 4 is fixedly connected to a feeding pipe 18, and the outer surface of the feeding pipe 18 is threaded with a sealing cap 14. When the cooling water in the cooling tank 4 is depleted after long-term use, the sealing cap 14 is rotated to add cooling water to the cooling tank 4.

[0029] This utility model provides a power transformer with an integrated grounding transformer, and its specific working principle is as follows:

[0030] When a power transformer using an integrated grounding transformer needs to be cooled, the cooling device 17 is turned on to cool the cooling water in the cooling box 4. At the same time, the drive motor 7 is turned on, and the stirring blade 16 rotates in the cooling box 4 to ensure that the cooling water temperature is cooled evenly. Then, the water pump 13 is turned on to pump the cooling water in the cooling box 4 into the heat absorption frame 12. The fan 10 is turned on to blow the external air into the protective box 1. The incoming air flows in an S-shaped heat dissipation channel formed by the heat absorption plate 2 11 and the heat absorption plate 1 8. The flowing air contacts the outer surface of the heat absorption frame 12 to cool the air, thereby achieving rapid and effective cooling of the power transformer body 2.

[0031] 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. An integrated grounding transformer power transformer, characterized by, Include: Protective box (1); Power transformer body (2) is arranged in the inside of the protective box (1); Cooling box (4) is arranged on the protective box (1), and the upper end of the cooling box (4) is provided with cooling device (17), one side of the cooling box (4) is provided with water pump (13), the inside top of the protective box (1) is provided with heat absorption frame (12), the output end of the water pump (13) is fixedly communicated with the input end of the heat absorption frame (12), and the output end of the heat absorption frame (12) is fixedly communicated with one side of the cooling box (4); Fan (10) is arranged on the protective box (1).

2. The power transformer integrated with a grounding transformer according to claim 1, characterized in that: The inner wall of the protective box (1) is provided with heat absorption plate two (11), the other side of the inner wall of the protective box (1) is provided with heat absorption plate one (8), the heat absorption plate one (8) and the heat absorption plate two (11) form S-shaped channel in the inside of the protective box (1).

3. The power transformer integrated with a grounding transformer according to claim 2, characterized in that: One side of the heat absorption plate two (11) and the heat absorption plate one (8) is fixedly connected with the heat dissipation fin (9).

4. The power transformer of claim 1, wherein: Mounting bracket (5) is arranged on the protective box (1), and the inner wall of the mounting bracket (5) is slidably connected with the filter plate (6).

5. The power transformer of claim 1, wherein: Cushion (3) is arranged on the power transformer body (2).

6. The power transformer of claim 1, wherein: One side of the cooling box (4) is provided with driving motor (7), the output end of the driving motor (7) is drivingly connected with rotating rod (15), and the outer surface of the rotating rod (15) is provided with stirring blade (16).

7. The power transformer of claim 1, wherein: The upper end of the cooling box (4) is fixedly communicated with the feeding pipe (18), and the outer surface of the feeding pipe (18) is threadedly connected with the sealing cover (14).

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