Three-phase oil-immersed distribution transformer with forced directed cooling

A distribution transformer and oil-immersed technology, applied in the field of transformers, can solve problems such as potential safety hazards, high sealing performance requirements, and complex mechanisms, and achieve the effects of improving heat exchange performance, increasing heat dissipation rate, and increasing volume

Inactive Publication Date: 2017-08-18
江苏凡高电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the spiral pipe used for heat exchange in this technical solution is placed inside the transformer oil tank, and its mechanism is complicated and difficult to realize. Explosive substances, if the sealing measures are not done well, there will be potential safety hazards

Method used

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  • Three-phase oil-immersed distribution transformer with forced directed cooling
  • Three-phase oil-immersed distribution transformer with forced directed cooling
  • Three-phase oil-immersed distribution transformer with forced directed cooling

Examples

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Embodiment 1

[0031] Figure 1 to Figure 4 It schematically shows that a forced guiding cooling three-phase oil-immersed distribution transformer is provided according to the first embodiment of the present invention.

[0032] Such as figure 1 As shown, the present invention discloses a forced-guided cooling three-phase oil-immersed distribution transformer, which includes an oil tank 1, and a transformer core is installed in the oil tank 1. At the same time, the oil tank 1 is filled with high-temperature resistant insulating oil. In this embodiment of the invention Among them, the high-temperature-resistant insulating oil is β liquid, and silicone oil FR3 natural ester can also be used in practical applications. The transformer core is immersed in high temperature resistant insulating oil.

[0033] Such as Figure 1 to Figure 4 As shown, preferably, in this embodiment of the present invention, the oil tank 1 adopts a corrugated oil tank, such as image 3 As shown, the oil tank 1 is a h...

Embodiment 2

[0042] Figure 1 to Figure 6 It schematically shows that a forced guiding cooling three-phase oil-immersed distribution transformer is provided according to the second embodiment of the present invention.

[0043] Such as Figure 1 to Figure 4 As shown, the second embodiment of the present invention discloses a forced-guided cooling three-phase oil-immersed distribution transformer which is basically the same as Embodiment 1, except that:

[0044] Such as figure 2 , image 3 , Figure 5 and Figure 6 As shown, as another invention point of the present invention, in this embodiment of the present invention, a control system for controlling the fuel tank in the fuel tank 1 is included, the control system includes a liquid level sensor 28 fixed on the inner wall of the fuel tank 1, and A controller 27 above the cover 2, and the liquid level sensor 28 is connected with the controller 27. Such as figure 2 As shown, the liquid level sensor 28 is fixed on the upper end of on...

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Abstract

The invention provides a forced-guided cooling three-phase oil-immersed distribution transformer, which includes a transformer body, the transformer body includes an oil tank, the oil tank is filled with high-temperature-resistant insulating oil, and a transformer core is installed in the oil tank. The transformer core is submerged in the high temperature resistant insulating oil, wherein at least one side wall of the oil tank is connected to a bellows box, and the outer side of the bellows box is connected to a circulation lift pump. The invention provides a forced-guided cooling three-phase oil-immersed distribution transformer. The oil tank adopts a corrugated shape to form a breathing chamber, so that the oil tank has a breathing function, which can compensate for the volume change of the oil caused by the temperature change, and replaces the oil storage tank. , to isolate the transformer oil from the outside world, which can effectively prevent oxygen and water from entering the oil tank, resulting in a decrease in insulation performance. Exchange performance.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a forced-guided cooling three-phase oil-immersed distribution transformer with improved heat dissipation performance. Background technique [0002] Transformer is an important equipment in power generation, power supply and power consumption enterprises. It is also in a very critical position in the power grid. It is an important device to ensure the safe and reliable operation of the power grid and the electrodes used by people in production and life. [0003] Oil-immersed transformers are suitable for power systems, industrial and mining enterprises, transportation, post and telecommunications departments, scientific research units, etc., to conduct dielectric strength tests on various high-voltage electrical equipment, electrical components, and insulating materials under power frequency or DC high voltage. Oil-immersed transformers rely on oil as the cooling medium, such...

Claims

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Application Information

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IPC IPC(8): H01F27/14H01F27/08
CPCH01F27/14H01F27/085
Inventor 朱万盛钱蓉蓉管生立
Owner 江苏凡高电气有限公司
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