文稿教程講稿py017lk

ADOC.PY017LK*006DDS045GNCHAPTER6 A:B:C:√Issued 號 ThisisthepropertyofGEDI.Itmustnotbeused,reproduced,transmittedordisclosedwithoutthepriorwrittenpermissionofGEDI.本文件之屬于省電力。未獲我院，任何人不得擅自使用、、傳遞或該文件。CHAPTER6-CONTROLTheswitchboardsarecontrolledTheabnormalrunningstatesshallbereportedtothecontrolroomasthealarmsignals.Accordingtothesesignals,theoperatorcanknowthestateofthedevice.Onlywhenearthfaultoccurs,thecontactorswilltripopenfor nelanddevicesafety.LOGICRefer: ogNotNotThe380Vmainswitchboardisenergizedbyuseofthelocalbuttoncontrolunitofassociated6.6kVcontactor.Insertthelocalbuttoncontrolunitinto6.6kVfeedercabinetpanelandpush“On”button,thecontactorshallbeclosed.The380Vmainswitchboardisshutdownbypushingthelocal“Off”buttonof6.6kVOperationinthecaseofanIftheinvolvesthe6.6kVfeederofthe6.6kV/380Vtransformer,itshallbecheckedlocallytofindthereasonandtorepair. Lackof110VDCcontrolIfthe110VDCcontrolsupplyislostat6.6kVswitchboard,the6.6kVcontactorwilltripandthe380Vswitchboardswilllosepower.Ifthe110VDCcontrolsupplyislostona380Vswitchboard,thefollowingthingsshalltakece:Theswitchboardkeepspoweredby380V;Theoutgoinglinecontactortripsopen;Thebreakerkeepsclosed;Theon/offindicatorlampsonthepanelarelossofpower;Theprotectingrelaycannotwork;Theremotecontrolsystemofthecontactorcannotwork;Theshunttripofthebreakercannotwork;The“Cubiclefault”alarmrisesinthecontrolLackof24VDCcontrolIfthe24VDCcontrolsupplyislostona380Vmainswitchboard,thefollowingthingsshalltakece:TheswitchboardkeepspoweredbyTheoutgoinglinecontactorkeepsclosed;Thebreakerkeepsclosed;