Three-phase amorphous alloy isolation transformer

Abstract

The invention relates to a three-phase amorphous alloy isolation transformer which comprises an iron core, an inner winding and an outer winding, wherein the iron core is a four-frame and five-column iron core formed by winding amorphous alloy, a metal isolating layer is arranged between the inner winding and the outer winding, the outer side of an iron yoke of the iron core is provided with a hard combined insulation member, the upper end and the lower end of the hard combined insulation member are respectively connected with an upper padding plate and a lower padding plate, cushion blocks are arranged between the windings and the upper padding plate and between the windings and the lower padding plate, the other end of the hard combined insulation member is provided with an upper clamping member, the other end of the lower padding plate is provided with a lower clamping member, and a locator is arranged on the lower end face of the lower clamping member. A metal foil is used as the metal isolating layer for isolating, thus interference signals are reduced and a power grid is purified; the amorphous alloy is used as the iron core, thus the no-load loss and the current are reduced and the energy is saved; and the hard combined insulation member ensures that a short-circuiting force does not act on the iron core when the windings are short-circuited, the clamping members and the padding plates and the like ensure that the iron core bears smaller mechanical force, thus the short-circuiting resisting capacity of a transformer is improved.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a three-phase amorphous alloy isolation transformer. Background technique [0002] Amorphous alloy transformer is an excellent low-loss energy-saving transformer. It uses amorphous alloy material instead of silicon steel sheet to make iron core, so that the transformer has low no-load loss and no-load current. However, amorphous alloy is very sensitive to mechanical force. , should try to avoid using the iron core as the main load-bearing structural member. [0003] There is no direct electrical connection between the primary winding and the secondary winding of the isolation transformer, which can isolate the electrical equipment from the power grid, and the primary winding and the secondary winding will not induce each other, so we can achieve the purpose of clean power supply. Therefore, it is used more and more widely. [0004] The isolation transformer has the charact...

AI Technical Summary

Problems solved by technology

The core structure of traditional three-phase isolation transformers is made of silicon steel sheets. The loss of medium and high frequency waves in silicon steel sheet transformers is quite large, and the energy-saving effect is not ideal.

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