电流互感器一次侧电流为额定电流时，磁导率接近最大，误差（  ）。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69484' and id < 4500552 and id<>'4500552' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69484' and id > 4500552 and id<>'4500552' order by id asc limit 5