已知发生短路时短路点至保护安装处的线路阻抗为0.5+j1.73Ω，过渡电阻为0.5Ω，采用90°接线，求此时的最大灵敏角为（ ）。 

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69480' and id < 4501471 and id<>'4501471' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69480' and id > 4501471 and id<>'4501471' order by id asc limit 5