Coil hard-paper cylinder stabilization oil-immersion treatment device

Abstract

The invention provides a coil hard-paper cylinder stabilization oil-immersion treatment device, which comprises an oil immersion tank, wherein a transmission shaft is arranged in the oil immersion tank; a coil hard-paper cylinder is arranged on the transmission shaft and supported by supporting devices which are arranged on two sides of the oil immersion tank; an oil charging and discharging device is arranged in the oil immersion tank; and when the transmission shaft is driven by a power mechanism to operate, the coil hard-paper cylinder rotates under the action of the transmission shaft to make the oil immersion tank perform oil-immersion treatment on the coil hard-paper cylinder. The coil hard-paper cylinder stabilization oil-immersion treatment device has the advantage that: oil immersion is realized by driving the coil hard-paper cylinder to rotate in the oil immersion tank, so that the coil hard-paper cylinders of different sizes can be subjected to oil-immersion treatment.

Description

technical field [0001] The invention relates to an oil immersion device, in particular to an oil immersion device for stabilizing a coil cardboard tube. Background technique [0002] With the increase of power grid capacity and the expansion of line scale, the short-circuit conditions of transformers are increasing day by day, and the short-circuit current is also gradually increasing, which brings more and more harm, and the requirements for the short-circuit resistance of transformers are also getting higher and higher. The influence of the inner and outer diameters of the transformer coil is particularly important. As the "skeleton" of the coil, the control of the cardboard tube's size can directly affect the control of the coil size. In the general transformer manufacturing process, the hard paper tube must be wound about 10 days in advance, or even longer, and the hard paper tube will expand due to long-term exposure to the air to absorb moisture, and will shrink after ...

AI Technical Summary

Problems solved by technology

[0003] However, with the continuous increase of transformer capacity, the diameter of the cardboard tube is also increasing. The traditional oil immersion method - placing the cardboard tube in a vertical oil immersion tank has three obvious defects: first, once the cardboard tube is immersed After the oil tank is made, the maximum diameter of the cardboard tube will be determined accordingly. If you want to change it, you must re-make a larger diameter oil immersion tank, which is very costly; secondly, if the size of the oil immersion tank is designed to be large from the beginning , it will result in a large volume of the oil pipe, a large amount of oil consumption, and a long time for filling and discharging oil.

Third, when the cardboard tube stabilization treatment oil immersion device has been used for a period of time and needs to be cleaned, the traditional vertical oil immersion tank has the problem of difficult cleaning operations

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