如果发电机中性点不接地，这时发电机的等效零序电抗为(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69456' and id < 4498093 and id<>'4498093' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69456' and id > 4498093 and id<>'4498093' order by id asc limit 5