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Three-phase-to-single-phase transformer

A single-phase transformer, three-phase technology, applied in the direction of transformers, fixed transformers, transformer/inductor coils/windings/connections, etc., can solve problems such as three-phase current imbalance

Pending Publication Date: 2021-10-29
HENAN SENYUAN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a three-phase to single-phase transformer, which is used to solve the problem of unbalanced three-phase current caused by directly using live wire and neutral wire to obtain single-phase power

Method used

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] This embodiment provides a three-phase-to-single-phase transformer, which includes an intermediate iron core, iron cores on both sides, and A and C phase windings. Winding is not provided. Among them, both phase A and phase C windings include primary windings and secondary windings, and the number of turns WA of the primary winding of phase A is equal to the number of turns WC of the primary winding of phase C, and the number of turns Wa of the secondary winding of phase A is equal to that of the secondary winding of phase C The number of turns Wc, that is, WA=WC, Wa=Wc.

[0017] Such as figure 1 As shown, a terminal with the same name of the primary winding of phase A is connected to a terminal of the same name of the primary win...

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PUM

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Abstract

The invention relates to a three-phase-to-single-phase transformer, and the transformer comprises a primary winding and a secondary winding; the primary winding comprises an A-phase primary winding and a C-phase primary winding, one dotted terminal of the A-phase primary winding is connected with one synonym terminal of the C-phase primary winding, and a wiring terminal used for being connected with a B phase is led out at the joint; the secondary winding comprises an A-phase secondary winding and a C-phase secondary winding, and one dotted terminal of the A-phase secondary winding is connected with one dotted terminal of the C-phase secondary winding. The transformer can solve the problem of unbalanced three-phase current, and is simple to design and manufacture and low in cost.

Description

technical field [0001] The invention relates to a three-phase-to-single-phase transformer, which belongs to the technical field of power transformers. Background technique [0002] At present, it is necessary to use a single-phase power supply for general electrical power supplies or lighting power supplies such as various machine tools and mechanical equipment, so it is necessary to change the three-phase power supply into a single-phase power supply. There are three live wires and one neutral wire on the secondary side of the three-phase distribution transformer. For the usage of directly using the live wire and the neutral wire to obtain single-phase power, the three-phase current will be unbalanced. This is because, if any of A, B, and C One phase and zero phase take single-phase electricity, then the phase current of one phase is S is the rated capacity, U 线 is the rated line voltage, and the other two-phase currents are 0. Moreover, when the live wire and the neutr...

Claims

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Application Information

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IPC IPC(8): H01F30/14H01F27/28
CPCH01F30/14H01F27/28
Inventor 郭凯杨延伟刘金星何文博赵利阳胡汇博
Owner HENAN SENYUAN ELECTRIC CO LTD