Review on Excitation Inrush Current of High Impedance Transformer
With the increase of system capacity in the development of power grid,the application rate of high impedance transformer with low cost,small extra floor area and strong ability to limit system short-circuit current is increasing.At present,there are few studies on high impedance transformers abroad,and there is no systematic study on high impedance transformers in China.Firstly,the definition and design principle of high impedance transformer are introduced,and the realization methods of different high impedance transformers are summarized.Secondly,the excitation inrush current of high impedance transformer is analyzed theoretically.Finally,the excitation inrush current suppression measures of high impedance transformer are summarized and compared,and the prospects of research and application of high impedance transformer are prospected.
high impedance transformerimplementation modeinrush inrush current
NETL
NSTL
万方数据
维普
