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Transformer split connection group structure

A technology for connecting groups and transformers, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor parts, electrical components, etc., can solve the problem of high cost of split transformer

Inactive Publication Date: 2019-08-27
BAODING TIANWEI BAOBIAN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of split transformers is the higher cost

Method used

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  • Transformer split connection group structure
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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the present invention will be further described by examples.

[0012] The coil layout of the three-phase transformer in the prior art, the high and low voltage coils have the same name and the same column (see figure 1 ).

[0013] Embodiment of the present invention, refer to the appended figure 2 , a transformer split-change connection group structure, including low-voltage coil C-phase 1, low-voltage coil A-phase 2, low-voltage coil B-phase 3, high-voltage coil A-phase 4, high-voltage coil B-phase 5, high-voltage coil C-phase 6, and balance coil Pa Phase 7, balance coil Pb phase 8 and balance coil Pc phase 9; the special features are: high voltage coil A phase 4 and low voltage coil c phase 1 have the same column, high voltage coil B phase 5 and low voltage coil a phase 2 have the same column, high voltage coil C phase 6 is on the same column as low-voltage coil b phase 3; balance coil Pa phase 7 is on the same column...

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Abstract

The invention relates to a transformer split connection group structure, in particular to a connection group (YN yn10-yn10+d) structure, and belongs to the technical field of large transformer manufacturing. According to the technical scheme, a high-voltage coil A phase (4) and a low-voltage coil c phase (1) have the same column; a high-voltage coil B phase (5) and a low-voltage coil a phase (2) have the same column; a high-voltage coil C phase (6) and a low-voltage coil b phase (3) have the same column; a balance coil Pa phase (7) and the high-voltage coil A phase (5) have the same column; abalance coil Pb phase (8) and the high-voltage coil B phase (5) have the same column; a balance coil Pc phase (9) and the high-voltage coil C phase (6) have the same column; and a connection group YNyn(1)0-yn(1)0+d structure is formed. The transformer split connection group structure disclosed by the invention has the beneficial effects that the connection group (YN yn10-yn10+d) structure is realized and the switching requirements of power utilization systems of users are met.

Description

technical field [0001] The invention relates to a transformer splitting variable connection group structure, in particular to a connection group (YN yn10-yn10+d) structure, which belongs to the technical field of large-scale transformer manufacturing. Background technique [0002] A split-winding transformer refers to a multi-winding power transformer in which each phase consists of one high-voltage winding and two or more low-voltage windings of the same voltage and capacity. The normal power transmission of the split transformer is only carried out between the high and low voltage windings, and it has the function of limiting the short-circuit current in the event of a fault. The capacity of several branches is the same, the rated voltage is equal or close to each other, they can run independently or in parallel, and can bear the same or different loads. When the load or power supply connected to a certain low-voltage winding fails, the remaining low-voltage windings can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/30
CPCH01F27/306
Inventor 谢辉王晓磊杨静何磊关雯缤李刚唐春颖
Owner BAODING TIANWEI BAOBIAN ELECTRICAL