On the basis of the analysis of static economic load rate, a dynamic optimal economic load rate of transformer is provided, which is the basis for selection of trans-former capacity.

并在变压器静态经济负载率分析的基础上提出变压器动态最佳负载率，以此作为变压器经济容量的选择依据。

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This lack of static, DC offset current in the output transformer means that the core can be made smaller, because it requires no air gap to prevent core saturation from the static DC offset current.

这种缺乏静态，直流偏移电流输出变压器的核心手段，可更小，因为它不需要空气间隙，以防止核心饱和从静态直流偏移电流。

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A static var compensator of hybrid transformer type, which has both capacitive and inductive reactive power, is also presented in this paper.

在此基础上，进一步提出了同时具有容性和感性无功补偿能力的混合变压器式静止无功补偿器。

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