Large-current-dividing voltage-regulating winding and processing method thereof
A voltage regulating winding and processing method technology, applied in the direction of transformer/inductor coil/winding/connection, inductance/transformer/magnet manufacturing, circuit, etc. Additional losses and other issues, to achieve the effect of convenient operation, convenient lead structure layout, high practical application value
Pending Publication Date: 2019-11-05
SHANDONG POWER EQUIP +1
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- Abstract
- Description
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- Application Information
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Problems solved by technology
High currents not only cause large additional losses to metal structural parts such as transformer oil tanks and clamps, but also face huge challenges to the structure of existing voltage regulating windings, which may affect the operation stability and life of transformer products, and then affect the safety of the power grid.
Method used
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Embodiment Construction
[0023] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] Such as figure 1 As shown, it is a structural schematic diagram of two voltage regulating coils arranged in parallel up and down according to an embodiment of the present invention. In the figure, the 7-level voltage regulation range of the transformer is taken as an example, and the number of voltage regulation coils is 8. The two voltage regulating coils are wound in opposite directions (the first coil on the upper side is wound to the right and the second coil on the lower side is wound to the left), connected up and down in parallel, the voltage regulating coil is a single-layer coil, and the outlet of each voltage regulating coil is along the coil width Stretch out, arrange evenly, and offset up and down at the same angle.
[0025] For the convenience of description, a certain outlet in the middle of the voltage regulating coil is named X...
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The invention relates to a large-current-dividing voltage-regulating winding, and the winding comprises two voltage-regulating coils which are connected in parallel up and down and have opposite winding directions, wherein the peripheries are supported by strips and are bound by paper tapes; and cushion blocks are arranged at the outlet positions of the voltage-regulating coils for filling. The winding directions of the two voltage-regulating coils are opposite, and the voltage-regulating coils are single-layer coils, wherein the outlet ends of the voltage-regulating coils extend out in the width direction of the coils, are evenly arranged and are the same in up-down deviation angle. The invention further relates to a processing method of the large-current-dividing voltage-regulating winding. The structure of the large-current-dividing voltage-regulating winding meets the voltage-regulating requirements, and achieves the large-current dividing; the lead structure is convenient to arrange, the operation is convenient, and a high practical application value is achieved.
Description
technical field [0001] The invention belongs to the technical field of transformer manufacturing, and in particular relates to a high-current shunt voltage-regulating winding and a processing method thereof, which are suitable for ultra-high voltage converter transformers. Background technique [0002] At present, the converter transformer is developing towards the direction of large capacity, and for some projects with small grid-side voltage levels, especially flexible DC grid projects, the current may reach several thousand amperes. High currents not only cause large additional losses to metal structural parts such as transformer oil tanks and clamps, but also face huge challenges to the structure of existing voltage regulating windings, which may affect the operation stability and life of transformer products, and then affect the safety of the power grid. . Therefore, in the face of large-capacity and high-current adjustment requirements, a special-structured voltage-re...
Claims
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IPC IPC(8): H01F27/28H01F27/29H01F27/30H01F29/02H01F41/00
CPCH01F27/28H01F27/306H01F27/29H01F29/025H01F41/00
Inventor 张锋谈翀郭鹏鸿郭爱春杨仁毅张梓欣贾志玲郝娜杨帅王兴烛
Owner SHANDONG POWER EQUIP