Winding wire connection structure of single-phase distyle type reactor

Abstract

The invention discloses a winding wire connection structure of a single-phase distyle type reactor. An initial end head is led out from a column A winding. The winding wire connection structure is characterized in that: the upper end part and the lower end part of the column A winding are connected with the middle part of a column X winding after parallel connection; and the upper end part and the lower end part of the column X winding are led out as a tail end head after parallel connection. Relative to the column A, the winding type of the column X winding is simplified from a full knottingcake type with greater manufacturing difficulty to a knotting continuous type structure so as to simplify the winding process of winding and shorten the winding time. An end part insulation structurecan save the use number of insulation molded parts. The number of molded parts used in the column X winding is much less than that of the molded parts used in the column A winding, and therefore the manufacturing cost of column X winding is also lower than that of the column A winding.

Description

technical field [0001] The invention relates to a winding connection structure for single-phase double-column reactors of 750kV and above. Background technique [0002] In the AC high-voltage power transmission system, due to the ground capacitance effect of the long-distance transmission line, the reactor is used to compensate the reactive power on the transmission line to weaken the effect of the capacitive charging current. At the same time, the reactor can also Suppress the rise of power frequency voltage when the line is light-loaded, reduce the overvoltage insulation protection level of the line, so as to ensure the safe, stable and high-quality operation of the power grid. Reactors with large-capacity single-column structures are often used in previous AC high-voltage power transmission and transformation systems. However, the EHV and UHV transmission grids have high voltage and large reactor capacity. If such a structure is adopted, it cannot meet the transportation...

AI Technical Summary

Problems solved by technology

However, the ultra-high voltage and ultra-high voltage transmission network has high voltage and large reactor capacity. If this structure is adopted, it cannot meet the transportation requirements, and the safety and reliability are poor.

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