石化供电系统中快切装置技术特点及应用

Technical Features and Applications of Quick Switching Device in Petrochemical Power Supply System

备用电源快切装置是专门为解决石化电网厂用电的安全运行问题而研制的。采用该装置可避免备用电源电压与母线残压的相角、频率相差过大时合闸而对电机造成冲击等问题,提高厂用电切换的成功率。

The backup power supply quick switch device is developed for the purpose of safe operation of petrochemical power plant. The impact on motor can be avoided when the backup power supply closing to the large differences of phase angle and frequency of bus residual voltage. The plant power switching success rate is increased.