Power transformer capable of automatically adjusting oil level

Abstract

The invention discloses a power transformer capable of automatically adjusting an oil level. The power transformer comprises a box body and an iron core which is positioned in the box body, wherein a radiating plate is arranged on the circumferential side of the box body through an elastic mechanism; an annular sleeve is arranged on the circumferential side of the box body; a flow-guiding part is arranged below the annular sleeve; a radiation-preventing thermal-insulation coating layer is arranged outside the flow-guiding part; a conduction pipe which is connected with the flow-guiding part is arranged below the flow-guiding part; a hole is formed in the ground below the box body; and the conduction pipe is positioned in the hole. The transformer does not need a radiating fan; and meanwhile, the transformer is good in the cooling effect, and safe and reliable in operation.

Description

technical field [0001] The invention relates to the technical field of power transformer equipment, in particular to an oil level self-regulating power transformer. Background technique [0002] The current transformers are equipped with transformer oil. In order to reduce the temperature of the transformer oil, a cooling device is installed to reduce the temperature of the transformer oil. The existing cooling device is to install a flat cooling box on the side of the transformer oil tank, and insert multiple A flat cooling unit, this setting increases the heat dissipation area of ​​the transformer oil to enhance the heat dissipation effect, but the gaps between the multiple cooling units are small, the air does not circulate, and the heat is easy to accumulate in the gaps, resulting in heat dissipation. The heat dissipation effect of the body surface becomes worse; and the heat dissipation devices are all made of metal, the manufacturing cost is high, the structure is comp...

AI Technical Summary

Problems solved by technology

This type of spray cooling device has the following disadvantages: First, the structure is complex, the effective area sprayed onto the heat sink is small, and the cooling effect is poor

The second is that the cooling device is not safe to work, because the components and lines arranged around the transformer are close to the conductor, which may easily cause the components of the device to be burned and cannot continue to work effectively. At the same time, there are safety hazards in installation and maintenance; the third is spraying The device consumes a lot of water and cannot use water resources efficiently

The disadvantage is that the heat generated by this transformer is not easy to dissipate quickly, which affects the working efficiency of the transformer.

More importantly: in hot and windless summer, relying on the above-mentioned heat dissipation device obviously cannot cool down the transformer. The transformer is installed on the concrete floor or on the building, and the concrete floor absorbs a lot of heat. During the period, the load on the transformer is greater than that during the day, and the heat generated by the transformer is large and cannot be dissipated. At this time, the heat of the cement floor is conducted to the transformer on the one hand, and the most important thing is the heat radiation generated by the cement floor. , resulting in high temperature of the transformer, the main transformer is easy to be burned out, which brings safety hazards to the safety of power supply, and seriously affects the normal power consumption of residents and industrial and mining enterprises

Images