Three-column pull plate type dry amorphous alloy transformer
A technology of amorphous alloy and transformer, which is applied in the field of three-column pull-plate type dry-type amorphous alloy transformer, can solve the problem that star connection cannot be used to connect group power grid systems, star connection power grid systems cannot be applied, and the scope of application And regional restrictions and other issues, to achieve the effect of low noise, small footprint and beautiful appearance
Inactive Publication Date: 2016-11-23
SHANGHAI FLYING KING ELECTRIC
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[0002] At present, the structure of conventional dry-type amorphous alloy transformers is a four-frame and five-column suspension structure. The transformer with this structure is only suitable for the power grid system that uses the delta connection method to connect the group, and cannot be used for the star connection method to connect the group power grid system.
The four-frame and five-column structure requires special tooling equipment, occupies a large area, and has limited application range and area
[0003] Chinese patent CN102136356A discloses a three-phase five-column transformer, including a wire package and a magnetic core. The magnetic core is a three-phase five-column structure. Each column of the wire package contains two or more windings. The winding The middle and secondary side circuits are connected into a double anti-star structure, and the winding uses a phase-shifted winding on the primary side. Since the iron core of the transformer adopts a three-phase five-column structure, it cannot be applied to a star-connected power grid system, and the scope of use is limited. very restrictive
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[0028] Such as figure 1 and 2 As shown, a three-column pull-plate type dry-type amorphous alloy transformer is used in a delta or star connection group grid system. The transformer includes an upper clamp 1, a pull plate 2 and a lower clamp connected sequentially from top to bottom The clip 6 and the iron core 3 fixedly connected with the pull plate 2, the iron core 3 is an amorphous alloy iron core, and adopts a three-phase three-column structure, and the iron core 3 includes an outer frame iron core 31 and two inner frame iron cores Core 32 , the two inner frame iron cores 32 are arranged inside the outer frame iron core 31 , and the end surfaces of the outer frame iron core 31 and inner frame iron core 32 are coated with epoxy resin.
[0029] Such as Figure 4 and 5 As shown, the pull plate 2 is formed by a steel plate according to the size of the iron core. There are many small holes on the pull plate 2. The pull plate and the iron core 3 are fully bonded to form a whol...
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The invention relates to a three-column pull plate type dry amorphous alloy transformer which is used for being connected with a group grid system through a triangular or star connection method, the transformer comprises an upper clamping piece, a pull plate, a lower clamping piece and an iron core, the upper clamping piece, the pull plate and the lower clamping piece are sequentially connected from top to bottom, and the iron core is fixedly connected with the pull plate. The iron core is an amorphous alloy iron core, a three-phase three-column type structure is adopted, and the iron core is sequentially sleeved with a low-voltage coil and a high-voltage coil. Compared with the prior art, the three-column pull plate type dry amorphous alloy transformer has the advantages that the three-phase three-column structure is achieved, the transformer is suitable for the triangular connection method and the star connection method, the loss and noise are low, and the structure is firm.
Description
technical field [0001] The invention relates to a transformer, in particular to a three-column pull-plate type dry-type amorphous alloy transformer. Background technique [0002] At present, the structure of conventional dry-type amorphous alloy transformers is a four-frame and five-column suspension structure. This type of transformer is only suitable for the power grid system that uses the delta connection method to connect the group, and cannot be used for the star connection method to connect the group power grid system. The four-frame and five-column structure requires special tooling equipment, occupies a large area, and has limited application range and area. At present, the transformers used in the delta-connected group grid system are mainly high-energy-consuming transformers with traditional silicon steel sheets as the iron core. [0003] Chinese patent CN102136356A discloses a three-phase five-column transformer, including a wire package and a magnetic core. The ...
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IPC IPC(8): H01F27/26H01F27/25H01F27/32
Inventor 张太平
Owner SHANGHAI FLYING KING ELECTRIC
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