厂用电切换方法的研究及应用

分析了厂用电切换动态过程及目前厂用电切换方法存在的不足，提出了厂用电“同期捕捉 切换”方式，并在现场实际切换中取得了成功，利用同期捕捉切换“，结合快速切换，可提高厂用电切换的成功率，减少切换时对电动机及备用变压器的冲击，对发电机组的安全运行具有重要意义。

Study and Application of Power-Supply-Transfer Between Power Plant Motor Buses

Based on analyses of the dynamic process during power-supply-transfer of power station auxiliary system and the disadvantages of the transfer methods being used, this paper presents a new power transfer method called synchronization capture transfer and its implementation. Field experiments and real transfer actions were successfully experienced using this method. Using synchronization capture transfer, together with high-speed transfer, the possibility of successful and safe motor change-over is enhanced and the inrush current of the asynchronous motor and stand-by transformer are lowered. Significant advantage for the safe operation of generation units is anticipated.