This paper introduces the process design requirements for autostart and reacceleration of pumps in ethylene plant to ensure the safe and reliable of the plant.

• 介绍乙烯装置电机自启动和再加速工艺设计要求，以满足备用泵自起动及双电源供电装置中一个电源进线上瞬间失电后电机再加速的要求，确保装置的安全可靠。