【摘要】 电流差动保护是高压线路主保护的发展趋势,在电力系统的应用越来越普遍,但当其应用于高压长线路或长电缆线路时,分布电容电流对差动保护有影响。针对电容电流补偿在其电流差动调试中较难及文字介绍较少的现状,结合现场实际调试工作经验,介绍了在电流差动保护中考虑电容电流影响的调试方法。更多还原

【Abstract】 As a developing tendency of the main protection for HV lines,current differential protection finds increasing applications in power system.When applied to long HV lines or long cable lines,however,the differential protection is influenced by distributed capacitance current.In view of the difficulty of capacitance current compensation during the current differential debugging and the inadequacy of relevant description,this paper combines operation practice and presents the debugging method of current differential protection taking the effect of capacitance current into account.更多还原