本SAE航空航天信息报告（AIR）描述了在辅助电源装置（APU）和地面电源装置（GPU）之间切换时使用无中断功率传输（NBPT）方法的特点和效果。GPU可以是:a）使用点固态变频器、发动机发电机或电机发电机，或b）由电机发电机或固态变频器供电的中央系统。

This SAE Aerospace Information Report (AIR) describes the characteristics and effects of using no-break power transfer (NBPT) methods when switching between auxiliary-power unit (APU) and ground-power unit (GPU). The GPU may be: a) point-of-use solid-state frequency converter, engine-generator, or motor- generator or b) central system powered by motor-generator or solid-state frequency converter.