Oil-immersed type high-overload power transformer

A power transformer, high overload technology, applied in the direction of transformer/inductor shell, transformer/inductor cooling, transformer/inductor core, etc., can solve the problem of short sustainable running time of transformers, poor anti-aging ability of materials, and explosion of transformers and other issues, to achieve the effect of extending the sustainable running time, ensuring safety and stability, and large expansion space

Active Publication Date: 2014-10-29
HUBEI WANGAN TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that when the existing oil-immersed transformer is operating under high overload, the materials used inside the transformer have poor anti-aging ability, resulting in a s

Method used

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  • Oil-immersed type high-overload power transformer
  • Oil-immersed type high-overload power transformer
  • Oil-immersed type high-overload power transformer

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Example Embodiment

[0024] See Figure 1-3 , The present invention has an open transformer box 1, the outer surface of the side wall of the box 1 is provided with corrugated sheets 2, a sealing cover 3 is installed above the box 1, and the transformer core 4 is installed inside the box 1. 4 is composed of an iron core 5 and a winding coil 6; the inner and outer surfaces of the box body 1 are sprayed with organic high temperature resistant paint, and a gasket 7 made of fluorine rubber is embedded between the upper opening edge of the box body 1 and the sealing cover 3 , The tank 1 contains dimethyl silicone oil as the transformer oil 8, and the transformer core 4 is immersed in the transformer oil 8. A cylindrical tank 9 is fixedly installed on the sealing cover 3 of the transformer. The box 9 is placed horizontally and sealed with a new type of stainless steel corrugated seal. A partition 10 is provided in the middle of the cylindrical box 9. The partition 10 separates the cylindrical box 9 into an...

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Abstract

An oil-immersed type high-overload power transformer is provided with an open transformer box body. A sealed cover plate is arranged above the box body. A transformer core is arranged in the box body. The oil-immersed type high-overload power transformer is characterized in that organic high-temperature-resisting paint is sprayed on the inner surface and the outer surface of the box body, a sealing cushion made of fluororubber is embedded between an opening edge on the upper portion of the box body and the sealing cover plate, dimethyl silicone oil is arranged in the box body to be used as transformer oil, a cylindrical box body is fixedly arranged on the sealing cover plate of the transformer, a partitioning plate is arranged in the middle of the cylindrical box body, and the partitioning plate divides the whole cylindrical box body into an oil storage box and an expanding box in a partitioning mode. According to the structure, performance is stable, materials has high temperature resistance and corrosion resistance, continuous working time of an oil-immersed transformer under an overload situation is greatly prolonged, meanwhile, the expanding box is added, the problem that inner temperature of the transformer is too high, pressure is increased, and accordingly explosion happens can be avoided, and normal working operation of the transformer and the personnel safety of a using person are guaranteed.

Description

technical field [0001] The invention relates to the technical field of transformer equipment, in particular to an oil-immersed high overload power transformer. Background technique [0002] Generally speaking, when the transformer is operating under overload, the temperature rise of its various parts will be higher than that during the rated load operation. Since the aging degree of transformer coil insulation is related to temperature, it is known from the introduction of relevant design materials and operating experience that it is generally believed that the cable paper used for oil-immersed transformer coils is in the range of 80-140 degrees Celsius, and the temperature increases by 6 degrees Celsius, and its aging speed increases. Double, the national standard stipulates: when the transformer is running under rated load, the average temperature rise of the coil is 65 degrees Celsius. Usually, the temperature rise of the hottest point of the coil is about 13 degrees Cels...

Claims

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Application Information

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IPC IPC(8): H01F27/02H01F27/14H01F27/24H01F27/30H01F27/32
Inventor 贺晓红马斌王建锋
Owner HUBEI WANGAN TECH
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