Energy-saving transformer

Abstract

The invention provides an energy-saving transformer, which comprises a housing, wherein cooling fins are distributed on the peripheral wall of the housing; the housing is fully filled with transformer oil; a core formed by stacking silicon steel sheets is fixed in the housing; a core box enclosed by heat-conducting walls surrounds the outside of the core; the heat-conducting walls of the core box all are one-way flow walls; the flow directions of two heat-conducting walls parallel to the silicon steel sheets are from the inside of the core box to the outside of the core box; and the flow directions of the other heat-conducting walls are from the outside of the core box to the inside of the core box. The energy-saving transformer can keep the internal transformer oil flowing, has excellent heat dissipation performance and is simple in structure and relatively low in cost.

Description

technical field [0001] The invention relates to the field of power facilities, in particular, to a power transformer. Background technique [0002] For outdoor power transformers, oil-immersed transformers are mainly used at present. The internal iron core is soaked in transformer oil. The iron core and winding are kept at a lower temperature, thereby prolonging the life of the transformer, improving the efficiency of the transformer, and saving energy. For most of the current power transformers, the internal transformer oil is still, and the heat can only be conducted to the heat sink of the shell by the natural convection inside the transformer oil. The heat conduction efficiency is obviously slow; therefore, for some large-capacity transformers, there is also a The oil circuit circulation system keeps the transformer oil flowing inside the transformer to obtain the effect of forced convection, which greatly promotes the heat dissipation of the transformer; however, the...

AI Technical Summary

Problems solved by technology

For most of the current power transformers, the internal transformer oil is static, and the heat can only be conducted to the heat sink of the shell by natural convection inside the transformer oil, and the heat conduction efficiency is obviously slow; therefore, for some large-capacity transformers, there is also a The oil circuit circulation system keeps the transformer oil flowing inside the transformer to obtain the effect of forced convection, which greatly promotes the heat dissipation of the transformer; however, the current forced convection mechanism of transformer oil is generally driven by a circulating pump, which not only greatly increases the The structure is complex, and it is not conducive to the full sealing of transformer oil, which greatly increases the overall cost, so it is not suitable for use in ordinary power transformers

Images