Anti-short circuit transformer and preparation technology thereof

A transformer and anti-short-circuit technology, applied in the field of transformers, can solve the problems of winding instability and winding damage, and achieve the effect of preventing instability and deformation, small size and more profit space

Active Publication Date: 2017-02-01
SHANDONG HUACHI TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If no corresponding measures are taken, this force m

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  • Anti-short circuit transformer and preparation technology thereof
  • Anti-short circuit transformer and preparation technology thereof
  • Anti-short circuit transformer and preparation technology thereof

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Embodiment Construction

[0030] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes A-phase coils, B-phase coils, and C-phase coils. 1. The high-voltage coil 5 is set outside the iron core 2, and the inner insulating cardboard side of the low-voltage coil 6 is covered with a glue layer. This side of the inner insulating cardboard is in contact with the wires of the low-voltage coil 6. The interlayer insulation and terminal The ring 4 is all made of full-glue cable paper, the inner insulating cardboard, the low-voltage coil 5 wires, the interlayer insulation, and the end ring 4 are an integral structure. Dot glued paper, brush the glue layer on both sides of the end ring of the high-voltage coil 5, the wires of the high-voltage coil 5, the interlayer insulation, and the end ring form an integral structure, and set the pads 3 outside the end rings of the low-voltage coil 6 and high-voltage coil 5 in sequence , clip 1, low-voltage coil 6, high-voltage...

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Abstract

The invention particularly relates to an anti-short circuit transformer and a preparation technology thereof. The anti-short circuit transformer comprises an A-phase coil, a B-phase coil, a C-phase coil. Each of the A-phase coil, the B-phase coil and the C-phase coil comprises an iron core, a low-voltage coil and a high-voltage coil. Each low-voltage coil and each high-voltage coli are sleeved out of each iron core. An inner insulation paper board, a low-voltage coil lead, interlayer insulation and an end coil of each low-voltage coil form an integrated structure. A lead, the interlayer insulation and the end coil of each high-voltage coil form an integrated structure. Cushion blocks and clamp elements are arranged out of the end coils of the low-voltage coils and the high-voltage coils in sequence. The low-voltage coils, the high-voltage coils and the iron cores are braced through round rods. Clearances among the A-phase coil, the B-phase coil and the C-phase coil are braced through bracing boards. The A-phase coil and the C-phase coil at two ends are equipped with insulation boards. The insulation boards are connected with the lamp elements through thimbles. According to the transformer and the technology, under the condition that raw material costs are not increased, the distribution transformer has an anti-short circuit capability, a winding is effectively prevented from losing stability and deforming when the transformer is in a short circuit, and more profit margins are provided for a producer/manufacturer.

Description

[0001] (1) Technical field [0002] The invention relates to a transformer, in particular to an anti-short circuit transformer and a preparation process thereof. [0003] (2) Background technology [0004] At this stage, as the State Grid Corporation of China has higher and higher requirements for the quality of power grid distribution transformers, they must meet the short-circuit resistance capability. The traditional structure is that the transformer winding is a circular structure, and the low-voltage winding has a formed glass fiber reinforced plastic cylinder inside, and also There is a 20mm thick pressure plate to pass the short circuit, and the cost is much higher than that of the conventional oblong distribution transformer (generally 15%), which greatly occupies the profit margin. [0005] As we all know, a mechanical force acts between parallel wires carrying current. If the direction of the electric force in the wires is the same, the secondary force will make the t...

Claims

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Application Information

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IPC IPC(8): H01F27/32H01F27/30H01F27/28H01F41/04H01F41/12
CPCH01F27/2866H01F27/306H01F27/323H01F41/04H01F41/122H01F2027/2857
Inventor 于茂雷曹中占徐秀阁董军信
Owner SHANDONG HUACHI TRANSFORMER
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