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Piece type transformation method of transformer tubular cooling system

A cooling system and transformer technology, applied in the field of transformers, can solve the problems of high power consumption and noise, and achieve the effects of prolonging service life, reducing operating noise, and reducing operation and maintenance costs

Inactive Publication Date: 2014-01-22
洛阳华明变压器有限公司
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AI Technical Summary

Problems solved by technology

Usually the high-speed fan consumes a lot of power, makes a lot of noise, and generates vibration after running for a long time

Method used

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  • Piece type transformation method of transformer tubular cooling system
  • Piece type transformation method of transformer tubular cooling system

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Experimental program
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Embodiment Construction

[0010] Before the renovation, the cooling method of the original transformer was radiator plus air cooling, and there are 16 fans with high speed and loud noise. The transformer no-load loss: 43.00kW, load loss: 154.09kW. The transformer adopts tube radiator and is air-cooled. The relevant data of the tube radiator are as follows: the installation center distance of the tube radiator is 1880㎜; the number of heat pipes in each group: 120; the number of tube radiator groups: 8 groups. There are 16 fans, model BF-4Q4, 250W, 1 450r / min. After calculation, the air-cooled effective heat dissipation area of ​​a single tube radiator is 31.00㎡, and the total effective air-cooled heat dissipation area is: 31.00×8=248.0㎡. There are 16 fan motors with a rated power of 0.25kW. The purpose of the transformation is to change the tube air cooling to the plate self cooling.

[0011] Cause analysis of unsatisfactory heat dissipation of transformer

[0012] Whether the self-cooling effect...

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Abstract

The invention discloses a piece type transformation method of a transformer tubular cooling system. By trepanning an oil outlet of a transformer again, the oil outlet of the transformer is raised by 100mm, a piece type radiator with the center distance of 1600mm is selected for use, and therefore the height of the radiating center of the transformer radiator is increased and the position proportion of the heating center and the radiating center of the transformer reaches a reasonable value between 0.6 and 0.7 as shown in the attached map 2. Electric energy losses are reduced, operation noise is reduced, the main transformer temperature is reduced by 5-8 DEG C under the equal loads of the main transformer compared with the previous temperature, any defect does not exist, the operation and maintenance cost of the transformer is greatly reduced, and the service life of the transformer is prolonged.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a sheet-type transformation method for a transformer tube-type cooling system. Background technique [0002] Cooling systems are critical to the operational safety, maintenance costs and useful operating life of power transformers. Factors affecting the cooling system mainly include heat dissipation area, transformer oil circulation efficiency, and the relative position of the radiator and the heat generating part of the transformer, that is, the matching between the heat generation center and the heat dissipation center. [0003] The function of the cooling system is to diffuse the heat of the heating transformer to the surrounding environment. In order to improve the efficiency of heat diffusion, the traditional radiator of the power transformer generally enhances heat dissipation through air cooling. This method requires multiple high-speed fans to ventilate the transformer to imp...

Claims

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Application Information

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IPC IPC(8): H01F27/08H01F27/14
Inventor 郭克磊范新跃
Owner 洛阳华明变压器有限公司
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