同步发电机在稳态发生短路时，短路电流不是很大，其原因是（    ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69206' and id < 4480876 and id<>'4480876' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69206' and id > 4480876 and id<>'4480876' order by id asc limit 5