Low-voltage dual-voltage voltage regulating coil and transformer
A technology of voltage regulating coils and low voltage coils, which is applied in the field of transformer voltage regulation, and can solve the problems of difficult voltage regulation processing, large transformer capacity requirements, and inability to meet the needs of different voltage substations.
Pending Publication Date: 2019-12-31
JIANGSU HUAPENG TRANSFORMER
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Problems solved by technology
[0003] However, due to the large capacity requirements of the transformer and the low voltage on the low-voltage side, the current on the low-voltage side is very large, and it is difficult to achieve voltage regulation, and thus cannot meet the needs of substations with different voltages.
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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] The voltage on the low-voltage side of different substations may vary slightly, for example, the low-voltage voltage may include 18kV, 16.5kV, 15.75kV, etc. In terms of market demand, in order to save construction costs, transformer products are sometimes required to be able to adapt to different substation operations, so it is necessary to adjust the voltage on the low-voltag...
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The invention provides a low-voltage dual-voltage voltage regulating coil and a transformer, which relate to the technical field of voltage regulation of transformers. The low-voltage dual-voltage voltage regulating coil comprises a voltage regulating coil; the voltage regulating coil comprises a voltage regulating turn area and a switching device; the first switching end of the switching device is the head end of the voltage regulating turn area, and the second switching end is the tail end of the voltage regulating turn area; the head end of the voltage regulating turn area is connected withthe tail end of a high-voltage coil of the transformer; and the switching device is used for switching on by selecting the first switching end or the second switching end, so that the transformer outputs different voltage regulating voltages between the head end of the low-voltage coil and the tail end of the low-voltage coil. The voltage regulating turn area is arranged on the high-voltage coilside, and the turn ratio of the high-voltage coil side to the low-voltage coil side of the transformer is changed, so that the low-voltage side of the transformer can output different voltage regulating voltages to meet the requirements of transformer stations with different voltages.
Description
technical field [0001] The invention relates to the technical field of transformer voltage regulation, in particular to a low-voltage dual-voltage voltage regulation coil and a transformer. Background technique [0002] With the continuous development of power transformer technology, the demand for the capacity of a single transformer product is also increasing. Among them, step-up transformers are mainly used in power plants. In order to adapt to the voltage difference requirements of the low-voltage side of different substations, the voltage of the low-voltage side of the transformer needs to be adjusted. [0003] However, due to the large capacity requirements of the transformer and the low voltage on the low-voltage side, the current on the low-voltage side is very large, making it difficult to achieve voltage regulation, and thus unable to meet the needs of substations with different voltages. Contents of the invention [0004] The purpose of the present invention is...
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Login to View More IPC IPC(8): H01F29/02
CPCH01F29/02
Inventor 陈琪张月唐俊赵文俊阮昕煜张旭葛慈
Owner JIANGSU HUAPENG TRANSFORMER