Structure of amorphous alloy oil immersion type distribution transformer and manufacturing method thereof

Abstract

The invention discloses an aluminum foil coil for a non-crystalline alloy oil immersed type distribution transformer, a transformer body structure and a method for manufacturing the transformer. The transformer comprises a four-frame five-column type or three-frame three-column type non-crystalline alloy iron core, high and low voltage coils sleeved on iron core columns, upper clamping pieces and lower clamping pieces arranged on upper and lower ends of the high and low voltage coils and end clamping pieces arranged on the outer ends of high voltage coils on the side columns, and the transformer also comprises an insulated framework sleeved on the iron core columns and a plurality of aluminum-copper transition connectors fixed on the upper clamping pieces through conducting wire clamps. The aluminum foil is used as a material of the low voltage coils and directly wound on the insulated framework, and the head ends and the tail ends of the low voltage coils are welded with aluminum bars of the transition connectors respectively, and the outer surfaces of the low voltage coils are covered by main insulation; and the high voltage coils are wound on the outer surface of the main insulation. In the technical proposal of the invention, aluminum replaces copper, so that the transformer has the characteristics of low no-load loss of common non-crystalline alloy distribution transformer, and the transformer also has the advantages that the transformer has low material cost and light weight, and minimizes the influence of copper price raising on cost of the non-crystalline alloy distribution transformer, and lowers consumption of insufficient copper resources and the like.

Description

technical field [0001] The invention relates to a coil and body structure of a transformer, in particular to a structure of an amorphous alloy oil-immersed distribution transformer and a manufacturing method thereof. Background technique [0002] The body of the transformer is composed of two parts, the coil and the iron core, and copper is the main raw material for manufacturing the transformer coil. my country's copper resources are very scarce, and long-term dependence on imports can meet the demand. In recent years, the international copper price has soared, which has greatly increased the material cost of transformers. [0003] Amorphous alloy oil-immersed distribution transformer (hereinafter referred to as amorphous distribution transformer) is a widely used high-efficiency and energy-saving product with extremely low no-load loss. The rising copper price has affected the cost performance of amorphous distribution transformers, and also restricted the promotion and ...

AI Technical Summary

Problems solved by technology

The rising copper price has affected the cost performance of amorphous distribution transformers, and also restricted the promotion and application of amorphous distribution transformers to a certain extent.

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