Marine three-phase-into-two-phase balancing transformer

A phase balance technology for ships, applied in the direction of transformers, fixed transformers, transformer/inductance parts, etc., can solve the problems of three-phase, unbalanced, etc. The effect of simple structure

Inactive Publication Date: 2016-05-25
NAVAL UNIV OF ENG PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the fact that the existing technology cannot solve the three-phase unbalance problem caused by single-phase load power supply in the ship power system, a balanced transformer with excellent comprehensive performance suitable for the three-phase three-wire

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  • Marine three-phase-into-two-phase balancing transformer
  • Marine three-phase-into-two-phase balancing transformer
  • Marine three-phase-into-two-phase balancing transformer

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Embodiment Construction

[0027] The implementation of the present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0028] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the three-phase to two-phase balanced transformer for ships of the present invention, the three-phase to two-phase balanced transformer for ships, includes an iron core, a primary side winding and a secondary side winding, and is characterized in that the iron core is a three-phase column type or a three-phase Phase-shell type; the primary side winding adopts delta connection, composed of three-phase winding AX, BY, CZ, the number of winding turns is W 1 ;The secondary side winding is divided into two parts, the first part is the number of turns is W 2 The A-...

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Abstract

The invention relates to a marine three-phase-into-two-phase balancing transformer. The balancing transformer comprises an iron core, a primary side winding and a secondary side winding, wherein the iron core adopts a three-phase columnar shape or a three-phase shell shape; the primary side winding is connected in a triangular manner, consists of three-phase windings AX, BY, and CZ, and the number of turns of the windings is W1; the secondary side winding comprises two parts; the first part comprises A-phase and C-phase windings with the number of turns of W2; the A-phase and C-phase windings are connected in series; the second part comprises a B-phase winding with the number of turns of W3; the relationship of the number of turns of the secondary side winding is as follows: a formula is as shown in the specification. The technological advancement of less number of windings, simple structure of the transformer, and relatively high material utilization ratio is realized; complex impedance matching is not required; and the transformer is easy to produce and manufacture.

Description

technical field [0001] The invention relates to the technical field of power transformers, in particular to a three-phase to two-phase balanced transformer applied to three-phase three-wire power systems such as ships. Background technique [0002] Single-phase load is a special three-phase asymmetric load. When the ship power system operates with single-phase load, the positive sequence component, negative sequence component and zero sequence component of the current in the grid are equal, which is an unbalanced state. Especially when the single-phase load is large, the unbalance degree of the power system may exceed the standard. [0003] At present, the ship's three-phase power system operates with single-phase loads, and the power supply method based on the average load distribution method is adopted. The single-phase transformer obtains electric energy from the grid to supply power to the single-phase load. Calculate the power of all single-phase loads, and distribute...

Claims

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Application Information

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IPC IPC(8): H01F30/14H01F27/28H01F27/30
CPCH01F30/14H01F27/2828H01F27/306
Inventor 孙盼赵镜红张俊洪夏益辉高嵬姜鹏
Owner NAVAL UNIV OF ENG PLA
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