关键词: 固定串联补偿装置, 电容器组, 爆破能量

Abstract: Capacitor explosion accidents happen at times due to the poor performance, improper type selection and scheme design of the capacitor bank in 500-kV transmission line FSC devices, which brings about huge losses such as equipment damage, plants burnout and even large-scale blackouts in the electric power system. The secure operation of capacitor banks will greatly influence the FSC reliability and the secure, reliable and economical operation of the power system. Therefore, it is essential to study the capacitor bank scheme design so as to improve FSC security. In this paper, the influences of the type selection and design scheme of FSC capacitor banks on FSC security are analyzed and the explosion energy of the capacitor banks with different design schemes is calculated. Finally, the suggestions on FSC optimization are put forward for FSC safety performance improving.

Key words: fixed series compensation appliance, capacitor bank, blast energy