A power transformer winding structure

Abstract

The invention relates to the technical field of transformer windings, and discloses a power transformer winding structure, which includes an iron core column, a coil is provided at the side end of the iron core column, a pad is provided at the lower end of the iron core column, and the pad The lower end of the block is provided with a hollow block, the lower end of the hollow block is provided with a base, the outer surface of the front end of the hollow block is provided with a connecting pipe, the front end of the connecting pipe is provided with a heat dissipation air pipe, and the side A heat dissipation fan is arranged at the end, and a connecting piece is arranged at the upper end of the iron core column, and a No. 1 mounting bolt is arranged on the outer surface of the front end of the connecting piece. The winding structure of the power transformer has simple structure, convenient operation, strong connection, good insulation, easy installation and disassembly, enhanced safety, good heat dissipation effect, enhanced internal heat dissipation efficiency, improved service life of winding, and easy installation It is easy to limit and disassemble, and enhance the stability of installation.

Description

technical field [0001] The invention relates to the technical field of transformer windings, in particular to a power transformer winding structure. Background technique [0002] Each phase of a three-winding transformer has three windings. When one winding is connected to the AC power supply, the other two windings induce different potentials. This transformer is used for loads that require two different voltage levels, power plants and substations. There are usually three different levels of voltage, so three-winding transformers are widely used in power systems. The high, medium and low voltage windings of each phase are placed on the same core column. For reasonable insulation use, the high voltage winding is usually placed on the outermost layer. The medium and low voltage windings are placed on the inner layer. [0003] The existing transformer windings have certain drawbacks in use. First, the transformer windings have poor connectivity during use, and the direct iso...

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Problems solved by technology

[0003] The existing transformer windings have certain disadvantages in use. First, the connection of the transformer windings is poor during use, and the direct isolation of each coil is poor, resulting in internal current disturbances, affecting the use effect, and the insulation is weak. Secondly, Due to the long-term use of the winding, the internal heat is high and the heat dissipation is poor, causing a fire and causing a safety hazard to the surrounding residential population. Finally, the winding is installed inside the transformer, which is inconvenient for maintenance, and the connection is poor. Strengthen maintenance personnel labor intensity, for this reason, we propose a power transformer winding structure

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