A dry-type transformer with an oval iron core

Abstract

The invention discloses a dry-type transformer with an elliptical iron core, which comprises a transformer shell, a heat dissipation mechanism, an elliptical iron core, a coil, a clamping mechanism and an upper cover. The heat dissipation mechanism is arranged in a horizontal direction and connected to the transformer shell Fixed assembly, the end of the heat dissipation mechanism away from the transformer shell is in contact with the ground, the elliptical iron core is vertically installed inside the transformer shell, the coil is wound on the elliptical iron core, and the clamping mechanism is sleeved On the side of the coil away from the elliptical iron core, the upper cover is arranged on the top of the transformer casing, and the upper cover is fixedly assembled with the transformer casing through a bolt structure. The present invention adopts an iron core with an elliptical cross-section, and the three-phase iron cores are arranged in a regular triangle, and are respectively located at the midpoints of the sides of the triangle, and the coil winding modes adjacent to the iron core are also different; in addition, in the present invention Equipped with a clamping mechanism, during the clamping process, the remediation of the coil falling off can be carried out to prolong the service life of the dry-type transformer.

Description

technical field [0001] The invention relates to the technical field of dry-type transformers, in particular to a dry-type transformer with an elliptical iron core. Background technique [0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage, while a dry-type transformer refers to a transformer in which the iron core and winding are not immersed in insulating oil. Due to its superior characteristics, dry-type transformers are widely used in local lighting, high-rise buildings, airports and other places. Whether the traditional dry-type transformer is single-phase or three-phase, most of them adopt iron cores with circular cross-sections, and they are uniformly arranged in a straight line; It is easy to cause local shedding, and there is a gap between the core and the corresponding existing solutions in the prior art, such as "CN201922156698.7 A dry-type transformer with a coil compression structure", but the clamping d...

AI Technical Summary

Problems solved by technology

Whether the traditional dry-type transformer is single-phase or three-phase, most of them adopt iron cores with circular cross-sections, and they are uniformly arranged in a straight line; It is easy to cause local shedding, and there is a gap between the core and the corresponding existing solutions in the prior art, such as "CN201922156698.7 A dry-type transformer with a coil compression structure", but the clamping device is not fixed Change, after maintaining the clamping effect for a period of time, there is no remedy for the coil falling off again

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