摘要
为改进灭弧室设计 ,将喷口电弧的微积分模型及气流场分析中的特征线法联立起来 ,对开断过程中电弧与气流场间的相互作用进行了模拟 ,并通过能量平衡方程对断路器的机械特性进行了计算 ,得到了各个时刻操动机构的运动特性、膨胀室的状态参数及灭弧室内气流场、电弧的动态特性。部分计算结果与试验值进行了比较 。
The arc extinction chamber design is improved by combining the differential integral model of nozzle arc and the λ scheme for the flow field. The interaction between the arc and the gas flow was simulated during the interruption. The mechanical characteristics of the circuit breaker were also calculated from the energy balance equation. The analysis predicts the driving mechanism performance, the state parameters of the expansion chamber, and the dynamic properties of the arc and the gas flow field during breaking. Some of the calculated results agree well with experiments.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2000年第7期8-11,共4页
Journal of Tsinghua University(Science and Technology)
关键词
电弧
膨胀室
开断过程
自能式六氟化硫断路器
self extinguishing type SF 6 circuit breaker
arc
expansion chamber
gas flow field
