Single-phase open core transformer

Abstract

The invention relates to a single-phase open core transformer, which comprises an oil tank. The oil tank is provided with a tank cover; the tank cover is provided with a high-pressure sleeve; a lifting lug is arranged at a joint of the oil tank and the tank cover; the side wall of the oil tank is provided with a low-pressure sleeve; the oil tank is filled with transformer oil; a core coil structure is also arranged in the oil tank and comprises a coil; the coil is sleeved on a core formed by superposing silicon-steel sheets; and each silicon-steel sheet is provided with fractures which are mutually staggered and positioned on the same side of each silicon-steel sheet. The advantages of light weight, small volume, low loss, low noise, small no-load current and high mechanical and electrical properties of the core are kept; the coil can be independently wound by the common winding machine, so that cost is reduced; the coil can be directly arranged on the core after the core is opened at an opening, so that production efficiency is high, mass production is facilitated, and the core transformer is convenient to disassemble and repair; and the iron space factor of the core transformer is high, which contributes to stabilizing performance.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a single-phase open-wound core transformer. Background technique [0002] The electric energy generated from the power plant is stepped up and stepped down several times, and finally sent to thousands of households through the step-down distribution transformer. The distribution transformer is an important part of the low-voltage power distribution system. Its structure and performance are not only related to the use of users, but also directly affect the performance and efficiency of the power grid. However, with the rapid development of the economy and the improvement of people's living standards, the distribution transformers with traditional structures have gradually exposed many disadvantages. [0003] The research on reducing the energy loss of transformers shows that the no-load loss of transformers depends on the material of the iron core, the arrangement of interna...

AI Technical Summary

Problems solved by technology

[0005] The common single-phase wound core distribution transformer uses the rolled iron core as the coil skeleton, and the coil needs to pass through a special winding machine, and the wire is directly wound on the core column. This winding method , not only the work efficiency is low, but also need to use a special winding machine, the cost is relatively high; and the closed winding core transformer, the coil is directly wound on the core, the product is not easy to disassemble and maintain

Images