In this paper

a porcelain-core quadruple-break filter circuit breaker is taken as an example to studythe voltage distribution characteristics. The quadruple-break circuit breaker dynamic model and the transient recov-ery voltage simulation circuit model are established. The equivalent capacitance parameters and stray capacitanceof the break are calculated based on the Ansys. The voltage distributions under different voltage-sharing measures（capacitance

resistance

resistance and capacitance in series

resistance and capacitance in parallel）are ana-lyzed through a quadruple-break circuit breaker equivalent circuit. According to the static voltage-sharing calcula-tion results

select proper capacitance and resistance. Under the dynamic voltage-sharing

because the resistanceafter the arc affects the equivalent parameters of each break

the total influence of resistance and capacitance paral-lel connection on the voltage distribution characteristics of the multi-breaker circuit breaker is obtained through sim-ulation

and a scheme for optimal configuration of parallel resistance and capacitance is derived. The voltage distri-bution test under different voltage-sharing measures is conducted under a 48 kV quadruple-break circuit breaker toverify the effectiveness of the resistance-capacitance parallel voltage-sharing measure for dynamic voltage-sharing.