High-altitude high-capacity indoor all-insulation voltage transformer

Abstract

The invention relates to a high-altitude high-capacity indoor all-insulation voltage transformer. The all-insulation voltage transformer comprises a primary coil, a secondary coil, an iron core and an insulation outer shell, wherein a first terminal and a second terminal of the primary coil are symmetrically arranged on the two sides of the top of the insulation outer shell, and strings are arranged on the periphery of the first terminal and the periphery of the second terminal. A plurality of bosses are arranged at the top of the insulation outer shell and between the first terminal and the second terminal, and one sides, close to the bosses, of all the strings except for the uppermost string are removed. Specially-made iron core sheet layers are stacked to form the iron core, and the cross section of the iron core is oval. According to the high-altitude high-capacity indoor all-insulation voltage transformer, the design of the opposite and secondarily opposite special strings is adopted, the bosses are arranged at intervals, and therefore the safe creepage distance of the whole transformer over the ground is increased. The effective section area is increased by means of the iron core with the special section shape, double requirements for high altitude and high capacity are met, and the applicable range is wide.

Description

technical field [0001] The invention relates to a high-altitude and large-capacity indoor full-insulation voltage transformer. Background technique [0002] With the optimized design of intelligent grid and the use of intelligent equipment, the demand for secondary capacity of voltage transformers for primary switching elements is increasing. Can do single winding, can not meet market demand. In order to increase the secondary capacity, many manufacturers mostly use semi-insulated products, but semi-insulated products have certain safety hazards in terms of anti-resonance ability. Therefore, it is necessary to develop and design a fully insulated large-capacity voltage transformer that is not only suitable for high-altitude areas but also has a large capacity. Contents of the invention [0003] The present invention makes improvements to the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the present invention is to prov...

AI Technical Summary

Problems solved by technology

[0002] With the optimized design of intelligent grid and the use of intelligent equipment, the demand for secondary capacity of voltage transformers for primary switching elements is increasing. Can do single winding, can not meet market demand

In order to increase the secondary capacity, many manufacturers mostly use semi-insulated products, but semi-insulated products have certain safety hazards in terms of anti-resonance ability

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