变压器并联运行必须要满足的条件是联结组别号相同，否则会导致（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69508' and id < 4502923 and id<>'4502923' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69508' and id > 4502923 and id<>'4502923' order by id asc limit 5