The secondary system consists of step-down transformers and secondary circuits at utilization voltage levels.
二次配电系统是由降压变压器和满足最终用电设备电压等级的二次电路组成。
Study on the design algorithm of thyristor-switched filters with step-down transformers is emphasized in the paper.
论文主要对带有降压变压器的晶闸管投切滤波器装置的设计算法进行了研究。
The distribution law of furan content in oil of large step-down transformers in Shanghai Grid is researched by statistical analysis. The cautions in its application are presented.
利用统计分析技术，研究了上海地区电网大型降压变油中糠醛含量的分布规律，提出了在其应用中应注意的问题。
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