CN203733602U - Three-phase and three-column amorphous alloy oil-immersed transformer - Google Patents
Three-phase and three-column amorphous alloy oil-immersed transformer Download PDFInfo
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- CN203733602U CN203733602U CN201420092637.3U CN201420092637U CN203733602U CN 203733602 U CN203733602 U CN 203733602U CN 201420092637 U CN201420092637 U CN 201420092637U CN 203733602 U CN203733602 U CN 203733602U
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Abstract
The utility model discloses a three-phase and three-column amorphous alloy oil-immersed transformer. The three-phase and three-column amorphous alloy oil-immersed transformer is characterized in that an iron core is made of amorphous alloy strips, and glue layers are coated on an outer surface sheet of the iron core along the width direction of the outer surface sheet; the amorphous alloy iron core is a three-phase and three-column amorphous alloy iron core; rectangular coils sleeve the iron core and include low-voltage coils and high-voltage coils, the high-voltage coils sleeve the low-voltage coils, the low-voltage coils are of foil winding structures, the high-voltage coils are of sectioned winding structures, and vacuum pressure immersion paint layers are arranged on the outsides of the high-voltage coils; the coils can be in Y-connection modes or D-connection modes; the high-voltage coils are divided into upper-section coils and lower-section coils, inter-section insulating layers are arranged among the upper-section coils and the lower-section coils, the upper-section coils are connected with the lower-section coils by switches, and the low-voltage coils are connected with low-voltage copper bars. The three-phase and three-column amorphous alloy oil-immersed transformer has the advantages that the inner diameters of the coils are reduced, so that an integral three-phase and three-column amorphous alloy oil-immersed transformer body can be diminished, raw materials can be lightened, the cost can be saved, the three-phase and three-column amorphous alloy oil-immersed transformer is high in safety performance and short circuit resistance, and the coils can be in the D-connection modes or the Y-connection modes.
Description
Technical field
The utility model belongs to field transformer, relates to a kind of three-phase three-pillar amorphous alloy oil-filled transformer.
Background technology
Present stage, the amorphous alloy oil immersion type transformer device structure that 10kV and 20kV change mutually scribbles the epoxide-resin glue of 2 millimeters into three-phase five-limb and the wide direction of lamination, workman is in the time of closed assembly iron core, cumbersome, production efficiency is low, because sheet cross direction scribbles the epoxy resin of 2 millimeters, increase the internal diameter size of coil, overall device body size is increased, increased raw-material weight, cost is higher.Low-voltage coil adopts wire-wound, and because coil shape is rectangle, low pressure is in the time pasting mould coiling, and turn insulation easily chaps, and brings serious potential safety hazard to transformer, high pressure only adopt segmented line around, anti-short circuit capability is poor.High-voltage coil and low-voltage coil all adopts wire-wound, and high-tension coil do not adopt paint-dipping process, and anti-short circuit capability is poor; Because iron core is three-phase five-limb, the mode of connection of transformer is necessary for D and connects, and effectively suppresses the harmonic current of other iron yoke, but cannot meet the requirement that Y connects, and the purposes of transformer is limited.
Summary of the invention
The utility model, in order to make up the deficiencies in the prior art, provides the three-phase three-pillar amorphous alloy that a kind of volume is little, performance is good oil-filled transformer.
The utility model is achieved by the following technical solution:
Three-phase three-pillar amorphous alloy oil-filled transformer of the present utility model, is characterized in that: iron core is low magnetic density, have the amorphous alloy strips of soft magnetic characteristic, iron core appearance sheet cross direction gluing water layer; Amorphous iron core is three-phase three-limb iron core, without the harmonic current that suppresses other iron yoke; On iron core, to have coil, coil shape be rectangle to cover, and coil comprises low-voltage coil and high-tension coil, and high-tension coil is enclosed within low-voltage coil outside, and low-voltage coil adopts paper tinsel around structure, and high-tension coil adopts segmentation winding structure and outside to have vacuum pressure impregnation layer; The mode of connection of coil both can connect with Y, also can connect with D; High-tension coil is divided into epimere coil and hypomere coil, between epimere coil and hypomere coil, has section insulation layer, between epimere coil and hypomere coil, is connected by switch, and low-voltage coil connects low-voltage copper bar.
The beneficial effects of the utility model are:
1. the sheet cross direction of iron core is brushed three step glue, removes the epoxide-resin glue of 2 millimeters, has reduced the internal diameter of coil, and overall device body size is dwindled, and reduces raw-material weight, cost-saving;
Low-voltage coil adopt paper tinsel around, there is not the be full of cracks of turn insulation, make the security performance of transformer higher, high-tension coil adopt segmented line around and adopt vacuum pressure impregnation, anti-short circuit capability is stronger;
3. transformer core adopts three-phase three-limb, and the mode of connection of transformer can connect for D, also can be for Y connects, and make the purposes of transformer more extensive, workman is in the time of closed assembly iron core, convenient, raises labour productivity.
Brief description of the drawings
Lower Fig. 1 is traditional structure schematic diagram, and lower Fig. 2 is general arrangement schematic of the present utility model.
Fig. 1: 1, three-phase and five-pole iron core 2, low-voltage lead 3, high-tension coil 4,5,2 millimeters of epoxide-resin glues of section insulation.
Fig. 2: 6, three-phase three-column iron core 7, low-voltage copper bar 8, three step glue.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
The amorphous alloy oil immersion type transformer that three-phase three-column 10kV of the present utility model and 20kV change mutually, iron core is low magnetic density, have the amorphous alloy strips of soft magnetic characteristic, iron core appearance sheet cross direction gluing water layer 8; Amorphous iron core is three-phase three-limb iron core 6, without the harmonic current that suppresses other iron yoke; On iron core, to have coil, coil shape be rectangle to cover, and coil comprises low-voltage coil and high-tension coil 3, and high-tension coil is enclosed within low-voltage coil outside, and low-voltage coil adopts paper tinsel around structure, and high-tension coil adopts segmentation winding structure and outside to have vacuum pressure impregnation layer; The mode of connection of coil both can connect with Y, also can connect with D; High-tension coil is divided into epimere coil and hypomere coil, between epimere coil and hypomere coil, has section insulation layer 4, between epimere coil and hypomere coil, is connected by switch, and low-voltage coil connects low-voltage copper bar 7.
The beneficial effects of the utility model are: 1, iron core is low magnetic density, has an amorphous alloy strips of soft magnetic characteristic, iron core appearance sheet cross direction is coated with three step glue, reduce the epoxide-resin glue of sheet cross direction 2 millimeters, reduce the internal diameter size of coil, transformer entirety device body size is dwindled, reduce raw-material weight, cost-saving.2, because coil shape is rectangle, low-voltage coil adopts paper tinsel around mode, has avoided causing because of wire-wound the low-voltage line turn insulation potential safety hazard leading to that chaps, and makes the security performance of transformer higher, high-tension coil adopt segmented line around and adopt vacuum pressure impregnation, anti-short circuit capability is stronger; 3, amorphous iron core is three-phase three-limb, workman is more convenient in the time of closed assembly iron core, improve workman's labor productivity, owing to adopting three-phase three-limb iron core, without the harmonic current that suppresses other iron yoke, the mode of connection of transformer both can connect with Y, also can connect with D, make the purposes of amorphous alloy transformer more extensive, iron core overlapping is simple, convenient.
Claims (1)
1. a three-phase three-pillar amorphous alloy oil-filled transformer, is characterized in that: iron core is low magnetic density, have the amorphous alloy strips of soft magnetic characteristic, iron core appearance sheet cross direction gluing water layer; Amorphous iron core is three-phase three-limb iron core, without the harmonic current that suppresses other iron yoke; On iron core, to have coil, coil shape be rectangle to cover, and coil comprises low-voltage coil and high-tension coil, and high-tension coil is enclosed within low-voltage coil outside, and low-voltage coil adopts paper tinsel around structure, and high-tension coil adopts segmentation winding structure and outside to have vacuum pressure impregnation layer; The mode of connection of coil both can connect with Y, also can connect with D; High-tension coil is divided into epimere coil and hypomere coil, between epimere coil and hypomere coil, has section insulation layer, between epimere coil and hypomere coil, is connected by switch, and low-voltage coil connects low-voltage copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092637.3U CN203733602U (en) | 2014-03-03 | 2014-03-03 | Three-phase and three-column amorphous alloy oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092637.3U CN203733602U (en) | 2014-03-03 | 2014-03-03 | Three-phase and three-column amorphous alloy oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733602U true CN203733602U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420092637.3U Expired - Fee Related CN203733602U (en) | 2014-03-03 | 2014-03-03 | Three-phase and three-column amorphous alloy oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128720A (en) * | 2016-08-30 | 2016-11-16 | 吴江变压器有限公司 | A kind of matrix loop structure |
-
2014
- 2014-03-03 CN CN201420092637.3U patent/CN203733602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128720A (en) * | 2016-08-30 | 2016-11-16 | 吴江变压器有限公司 | A kind of matrix loop structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20200303 |