CN201185123Y

CN201185123Y - Amorphous alloy transformer

Info

Publication number: CN201185123Y
Application number: CNU2007201316914U
Authority: CN
Inventors: 吴红; 黄遵奎; 吴俊�; 吴霖; 付军; 周明发; 张苏宁; 曾咏梅
Original assignee: ANHUI SHENHONG TRANSFORMER Co Ltd
Current assignee: ANHUI SHENHONG TRANSFORMER Co Ltd
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2009-01-21
Anticipated expiration: 2017-12-25

Abstract

The utility model relates to an amorphous alloy transformer, which comprises a transformer coil and a transformer iron core, and is characterized in that the transformer iron core is made of the amorphous alloy material; a rectangular iron core is formed by superimposing and reeling a plurality of amorphous alloy strip materials; four rectangular iron cores are arranged in a straight line to form a three-phased four-frame five-post-typed transformer iron core. By using the amorphous alloy, the idle loss of the transformer is greatly reduced, so as to realize the energy conservation.

Description

Amorphous alloy transformer

Technical field

The utility model relates to power equipment, and a kind of electric pressure of more specifically saying so is at 10KV/0.4KV, and capacity is the power transformer of 30-1600KVA.

Background technology

At present, medium and small power transformer is to make iron core with cold rolling grain oriented silicon steel sheet mostly, and its version is the 45 ° of full bias seams in plane, stacked rectangle iron core, three-phase three-column.This type of iron core form is because no-load loss height (specific loss of silicon steel sheet reaches 1.1-1.3W/kg) makes transformer self-operating loss height.Amorphous alloy material is the new magnetic material of coming out nineteen seventies, and it is the alloy of a kind of iron, boron series, and the alloy liquid of fusing is ejected on the low temperature roller of a high speed rotating with 10 ⁶℃/speed of S cools off fast, the alloy material that makes alloy have little time to constitute crystalline solid and form a kind of noncrystal, the magnetic energy of amorphous alloy material is very little, therefore its magnetic hysteresis loss is very low, because the resistivity height of amorphous alloy strips, single-sheet thickness only is 0.02mm, so its eddy current loss is also very little, and the specific loss of non-crystaline amorphous metal sheet material only is 0.3-0.4W/Kg.But up to now, amorphous alloy material is well used in the power transformer of SH11-M series as yet.

Summary of the invention

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of amorphous alloy transformer is provided, and significantly reduces the no-load loss of transformer by the utilization of amorphous alloy material, reaches energy-conservation effect.

The utility model technical solution problem adopts following technical scheme.

The utility model amorphous alloy transformer, comprise transformer coil and transformer core, its design feature is that transformer core is to be material with the amorphous alloy strips, be wound into rectangle iron core with many stacks of amorphous alloy strips, four rectangle iron cores are arranged in a linear and constitute three-phase four frame pentastyle transformer cores.

Design feature of the present utility model also is:

Transformer coil is the square cylinder that matches with transformer core.

With the rectangle iron core that many stacks of amorphous alloy strips are wound into, its overlapping the slot is uniform along yoke under the iron core.

The flute profile anchor clamps are set, and four rectangle iron cores that are arranged in a linear are inlaid in respectively in the groove of two flute profile anchor clamps with yoke under yoke and the iron core on its iron core, and are fastening with screw rod between two grooved anchor clamps.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, the utility model transformer core is material with the non-crystaline amorphous metal, the specific loss of non-crystaline amorphous metal sheet material only is 0.3-0.4W/Kg, therefore can reduce the no-load loss of transformer by a relatively large margin, no-load loss with the amorphous alloy transformer of capacity only is equivalent to 30% of S9 type transformer existing structure form, no-load current reduces by 50%, has obvious energy-saving effect.

2, core structure of the present utility model is square coil, does not have helical angle thereby end cross stray field very little, and vertically electric capacity is bigger, and Short Circuit withstand, lightning impulse resistant ability are strong.

Description of drawings

Fig. 1 the utility model core structure schematic diagram; Fig. 2 is Fig. 1 vertical view.

Fig. 3 is the utility model iron core and coil assembly structure schematic diagram; Fig. 4 is Fig. 3 vertical view.

Number in the figure: yoke, 6 screw rods, 7 overlapping the slot under yoke, 5 iron cores on 1 transformer core, 2 transformer coils, 3 groove type anchor clamps, 4 iron cores.

Below by embodiment, the utility model is described in further detail in conjunction with the accompanying drawings.

Embodiment

Referring to Fig. 1, Fig. 2, in the present embodiment, transformer core 1 is to be material with the amorphous alloy strips, is wound into rectangle iron core with many stacks of amorphous alloy strips, its overlapping the slot 7 is uniform along yoke under the iron core 5, and four rectangle iron cores are arranged in a linear and constitute three-phase four frame pentastyle transformer cores.

Referring to Fig. 3, Fig. 4, in the present embodiment, transformer coil 2 is the square cylinders that match with transformer core 1, support transformer coil 2 with transformer core 1, high-tension coil oxygen-free cupreous coiling, low-voltage coil are the Copper Foil coiling, and this form does not have helical angle, vertically electric capacity is bigger, and Short Circuit withstand, lightning impulse resistant ability are strong.In order to implement to fix, 3, four rectangle iron cores that are arranged in a linear of flute profile anchor clamps are set are inlaid in respectively in the groove of two flute profile anchor clamps 3 with yoke 5 under yoke 4 and the iron core on its iron core, carry out fastening with screw rod 6 between two grooved anchor clamps 3.

In concrete the enforcement, use No. 25 transformer oil to make insulation and heat eliminating medium, the every performance index of actual test all meet national standard.The concrete making is to be stacked together with many non-crystaline amorphous metal monolithics, forms rectangle iron core through reeling, finalize the design, annealing, and joint is the overlap joint shape, and overlapping the slot 7 is uniform along yoke under the iron core 5, and the coil of square structure is supported by iron core.Because the iron core seam crossing is forming magnetic field and setting up that to produce excitation sound in the process of magnetic flux bigger, present embodiment is by at the position of overlapping the slot pad rubber slab, and adopts elasticity to clamp, effectively sound insulation, eliminate and shake, thus the reduction noise.

Assembling process: at first the rectangle iron core of four linear array is opened at the interface of overlapping the slot 7 respectively, from opening part three transformer coils 2 are set on three middle iron core column, interjacent iron core column is to constitute closed subsequently overlapping the slot side by side by two single iron core column; Be positioned at the upper/lower terminal of coil, set up separately and put the upper and lower end insulation, it is staggered relatively with notch with a pair of flute profile anchor clamps 3 to be close to upper and lower end insulation again, the overlapping the slot place pad of transformer core is gone up rubber slab, and its embedding is in the groove of flute profile anchor clamps of below, fastening with stretching screw enforcement, assembling finishes, and carries out subsequently in the assembling of carrying out the high and low pressure lead-in wire.The utility model is particularly suited for SH11-M series amorphous alloy transformer.

Test shows in the electric field environment of 50Hz, replaces the cold-rolled orientation silicon steel sheet with amorphous alloy strips and makes transformer core, can reduce the no-load loss of transformer significantly and obtains good energy-saving effect.

Claims

1, amorphous alloy transformer, comprise transformer coil (2) and transformer core (1), it is characterized in that described transformer core (1) is is material with the amorphous alloy strips, be wound into rectangle iron core with many stacks of described amorphous alloy strips, four rectangle iron cores are arranged in a linear and constitute three-phase four frame pentastyle transformer cores.

2, amorphous alloy transformer according to claim 1 is characterized in that described transformer coil (2) is the square cylinder that matches with transformer core (1).

3, amorphous alloy transformer according to claim 1 is characterized in that the described rectangle iron core that is wound into many stacks of amorphous alloy strips, and its overlapping the slot (7) is uniform along yoke under the iron core (5).

4, amorphous alloy transformer according to claim 1, it is characterized in that being provided with flute profile anchor clamps (3), four rectangle iron cores that are arranged in a linear are inlaid in respectively in the groove of two flute profile anchor clamps (3) with yoke (5) under yoke (4) and the iron core on its iron core, and are fastening with screw rod (6) between two grooved anchor clamps (3).