Oil-immersed transformer

Abstract

The invention discloses an oil-immersed transformer which comprises a tank body and a base, wherein a transformer body is mounted inside the tank body; the outer side of the transformer body is filledwith heat radiation oil; the base is arranged below the tank body; support legs are symmetrically arranged at the lower end of the tank body; and the lower ends of the support legs are sleeved by support sleeves in a sliding manner. The oil-immersed transformer is simple and reasonable in structure and high in anti-seismic property, the temperature of an oil liquid inside the tank body can be detected through a temperature sensor, furthermore the temperature can be divided into three temperature values, when the temperature is a first temperature value, the result shows that heat radiation requirements can be met by passive heat radiation, then primary heat radiation and secondary heat radiation do not act up, when the temperature is a second temperature value, the primary heat radiationworks independently, when the temperature is a third temperature value, the primary heat radiation and the secondary heat radiation are informed to work, then gradient heat radiation can be achieved,energy conservation can be assisted, heat radiation can be carried out through cooling water and water vapor heat absorption when heat of the device is radiated, and compared with conventional air cooling, the heat radiation mode is relatively good in heat radiation effect and high in practicability.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to an oil-immersed transformer. Background technique [0002] The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. According to the purpose, it can be divided into: distribution transformer, fully sealed transformer, combined transformer, dry-type transformer, oil-immersed transformer, single-phase transformer, etc. Among them, the oil-immersed transformer has the characteristics of low loss, large capacity and low price. Now Common power transformers are oil-immersed transformers; the safe operation and service life of transformers depend largely on the safety and reliability of transformer winding insulation, but oil-immersed transformers will cause oil temperatur...

AI Technical Summary

Problems solved by technology

According to the purpose, it can be divided into: distribution transformer, fully sealed transformer, combined transformer, dry-type transformer, oil-immersed transformer, single-phase transformer, etc. Among them, the oil-immersed transformer has the characteristics of low loss, large capacity and low price. Now Common power transformers are oil-immersed transformers; the safe operation and service life of transformers depend largely on the safety and reliability of transformer winding insulation, but oil-immersed transformers will cause oil temperature to rise when they work for a long time, and the Staying in a high temperature state for a long time may cause the winding temperature to exceed the insulation tolerance temperature and cause insulation damage, which can accelerate the aging of internal components and cause the transformer to fail to work normally. Therefore, the heat dissipation of the transformer is very important.

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