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Iron core and winding structure and traction transformer
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A traction transformer and winding structure technology, applied in the field of transformers, can solve the problems of large maintenance and repair workload, large transformer floor area, and low production and processing efficiency, and achieve less material types and consumption, small floor space, and production high efficiency effect
Active Publication Date: 2021-02-23
TBEA INTELLIGENT ELECTRIC CO LTD +3
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Problems solved by technology
Since the separate and independent traction transformers with different power supply methods are equipped with different components, not only the material consumption of the transformer itself is high, the production and processing efficiency is low, and the overall cost of the equipment is high, but also because the transformer occupies a large area, the transformer secondary There are many protective devices and heavy maintenance and repair workload, which makes the investment and construction cost of the substation high
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Embodiment 1
[0038] like Figure 1a , Figure 1b , figure 2 , image 3 As shown, this embodiment provides an iron core and winding structure, including an iron core 9 and a winding unit, wherein the iron core 9 includes a first core 3 and a second core 4, and the winding unit includes a first winding unit 7 and a second winding Unit 8, the first winding unit 7 and the second winding unit 8 are respectively wound on the first stem 3 and the second stem 4, the first winding unit 7 is a winding for AT power supply, the second winding unit 8 It is a winding for direct power supply.
[0039] Specifically, such as Figure 4a , Figure 4b , Figure 5a as well as Figure 5b As shown, the first winding unit 7 includes a first low-voltage winding 10, a second low-voltage winding 11, and a first high-voltage winding 12, and the first low-voltage winding 10, the second low-voltage winding 11, and the first high-voltage winding 12 are sequentially arranged from inside to outside. Wound on the f...
Embodiment 2
[0051] This embodiment provides a traction transformer, including the iron core and winding structure described in Embodiment 1.
[0052] When the iron core 9 adopts a three-column structure, it includes three core columns, which are respectively the first core column 3, the middle core column 5, and the second core column 4, and the first core column 3 and the second core column 4 are respectively arranged On both sides of the central core 5 , the cross-sectional areas of the first core 3 , the middle core 5 , the second core 4 , the upper yoke 1 , and the lower yoke 2 are all equal.
[0053] In this embodiment, when the iron core 9 adopts a three-column structure, the first winding unit of the AT power supply mode and the second winding unit of the direct power supply mode are installed on the two sides of the three-column core structure, and the middle pole 5 No winding is provided, and the cross-sectional areas of the three core columns, the upper yoke 1 and the lower yoke...
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Abstract
The invention discloses an iron core and winding structure comprising an iron core and a winding unit, the iron core comprises a first core column and a second core column, the winding unit comprisesa first winding unit and a second winding unit, and the first winding unit and the second winding unit are respectively wound on the first core column and the second core column. The first winding unit is a winding in an AT power supply mode, and the second winding unit is a winding in a direct power supply mode. Correspondingly, the invention further discloses a traction transformer, and by adopting the traction transformer with the structure, one traction transformer can meet the requirements of an AT power supply mode and a direct power supply mode at the same time.
Description
technical field [0001] The invention belongs to the technical field of transformers, in particular to an iron core and winding structure, and a traction transformer. Background technique [0002] At present, there are many types of railway traction power supply methods, among which AT power supply (Auto Transformer Supply System Of Electric Traction, electric traction AT power supply method) and direct power supply account for the majority. In the process of continuous construction of electrified railways and continuous improvement of railway networks, the phenomenon that the above two power supply methods exist simultaneously in some traction substations. At this time, traditional traction transformers manufacture different traction transformers according to different power supply modes, and install and operate different traction transformers in the same traction substation to supply power to different railway traction networks. Since the separate and independent traction ...
Claims
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Application Information
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