下列哪个电压等级变压器，最有可能装设过励磁保护（ ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69480' and id < 4501500 and id<>'4501500' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69480' and id > 4501500 and id<>'4501500' order by id asc limit 5