过电流保护在系统运行方式变小时，保护范围也将变小。（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69481' and id < 4500263 and id<>'4500263' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69481' and id > 4500263 and id<>'4500263' order by id asc limit 5