组合电器中配合特性的研究

RESEARCH ON THE COORDINATION OF COMBINATIONS

本文通过对组合电器中负荷开关与熔断器之间的配合特性分析，认为减小熔断器在转移电流区域内的弧前时间或适当增加熔断器触发的负荷开关分闸时间Ｔ０，均可降低组合电器所需开断的转移电流值，并针对现有组合电器提出了减小转移电流的具体方案。

Through the analysis of the coordination characteristics between the switch and the fuses in combination,it is shown that the transfer current of combination can be decreased by reducing the prearcing time of fuses in the range of transfer current or by increasing the fuse initiated opening time( T 0) of the switch.The ways to decrease the transfer current for present combinations are put forward.