An insulation and heat dissipation device for high and low voltage coils

Abstract

The invention discloses an insulation and heat dissipation device for high-voltage and low-voltage coils. The insulation and heat dissipation device comprises a rolling device and a heat dissipation device, wherein the rolling device comprises an inner barrel; four supporting parts are arranged on the outer surface of the inner barrel; each supporting part is of a T-shaped structure; a hollow part is formed between the two adjacent supporting parts; the heat dissipation device comprises a heat dissipation strip mechanism; the heat dissipation strip mechanism is of a chain structure formed by mutually hinging a plurality of heat dissipation blocks one by one; the heat dissipation strip mechanism is arranged in one group of two opposite hollow parts; and a rotary shaft is arranged between the heat dissipation strip mechanism located outside the hollow parts and the end part of the inner barrel. Compared with the prior art, the insulation and heat dissipation device for the high-voltage and low-voltage coils, disclosed by the invention, has a relatively wide gap structure, and creepage is not formed between the high-voltage and low-voltage coils; the heat dissipation strip mechanism can continuously roll in a formed gap to continuously take away internal heat, so that a condition that temperatures in the coils are too high is prevented; and the service lives of the coils are prolonged, and the safety guarantee is also improved.

Description

technical field [0001] The invention relates to a coil cooling device, in particular to an insulating cooling device for high and low voltage coils, belonging to the field of electric power control. Background technique [0002] All electromagnetic carriers of power transformers, such as iron cores, windings, leads, and structural parts that can be linked by leakage magnetic fields, are all heating elements. The heat generated by the heating element, in addition to increasing its own temperature, will also increase the temperature of the surrounding medium, especially when the local temperature is too high, it may cause premature damage to the insulation, or cause the insulation medium to age at high temperature for a long time. Gradually loses its insulating properties. As we all know, the life of the transformer is the life of the insulating material. When the transformer is required to have a certain life, the insulating material should be guaranteed to have a correspond...

AI Technical Summary

Problems solved by technology

The insulating cylinder is simple and easy to operate, which improves the withstand voltage performance of the transformer; the insulating cylinder has a simple structure and has a certain effect on insulation, but the multi-layer design will bring more resistance to heat dissipation.

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