High-capacity three-phase voltage transformer

Abstract

The invention provides a large-capacity three-phase voltage transformer, which comprises a transformer base and a transformer shell, wherein the transformer shell is composed of an upper shell body and a lower shell body, the upper shell body is provided with three connecting columns distributed in a staggered mode, the lower shell body is provided with a power transmission box and winding cavities protruding outwards, the winding cavities correspond to the connecting columns one to one, the connecting columns penetrate through the upper shell body and then is connected with an iron core in the lower shell body, and windings located in the winding cavities are arranged on the periphery of the iron core. According to the voltage transformer, the winding cavities protruding outwards are additionally formed in the lower shell body so as to increase the internal space of the voltage transformer, so that under the condition that the internal space is large enough, the large-capacity use requirement of the voltage transformer can be met only by increasing the cross section of the iron core and the number of turns of the windings; and the iron core is connected with the connecting columns which are arranged in a staggered mode, so that the internal space of the voltage transformer is fully utilized, and the capacity of the voltage transformer is further improved.

Description

technical field [0001] The invention relates to a voltage transformer, in particular to a large-capacity three-phase voltage transformer. Background technique [0002] Potential transformers are relatively common equipment in power systems or electrical control systems. They are mainly used to supply power to measuring instruments and relay protection devices, to measure the voltage, power and energy of the line, or to protect the line when the line fails. Valuable equipment, motors and transformers in the line. The existing voltage transformer is mainly composed of a primary coil, a secondary coil, an iron core and an insulating shell, which cannot meet the requirements of small size and large capacity during use. Contents of the invention [0003] The purpose of the invention is to solve the deficiencies of the prior art and provide a large-capacity three-phase voltage transformer. [0004] A large-capacity three-phase voltage transformer includes a transformer base an...

AI Technical Summary

Problems solved by technology

Existing voltage transformers are mainly composed of primary coils, secondary coils, iron cores and insulating shells, which cannot meet the requirements of small volume and large capacity during use

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