同步发电机机端发生三相短路时，短路电流中包含的分量为(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69456' and id < 4498132 and id<>'4498132' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69456' and id > 4498132 and id<>'4498132' order by id asc limit 5