用相量图分析变压器的接线组别

Analysis on transformer wiring group with phasor diagram

对各种接线组别的三相变压器，用相量图的分析方法，可将变压器的组别改变，为此必须确认其接线组别的准确性，并核实其各侧电压、相别符号与电力系统各侧的电压相别符号相对应，确保并列运行的变压器在电力系统中安全稳定运行。

Three-phase transformer of the various wiring group difference can change transformer Wiring group by phasor diagram analysis, so affirms the correctness of wiring group, verifies its all sides voltage, different phase symbol corresponding to all sides of voltage phase symbol in electric power system, assures parallel operating transformer safety and stability.