資源描述：
《污水泵軟啟動故障的處理（treatment of soft start failure of sewage pump）》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、污水泵軟啟動故障的處理（Treatmentofsoftstartfailureofsewagepump）TreatmentofsoftstartfailureofsewagepumpThe2009-3-24Pickto:motorsoftstarterhasbeenwidelyusedinacmotorstart,fromallwalksoflifeinnorthwestsichuangasmineelectricenergysavingreconstructionproject,tojiangyouzhongbagas4JingZ
2、hantwosewagepumpstartwayofmodification,theJingZhantwosewagepumpforautotransformerstartbeforemodification,andreplacedintheenergy-savingrenovationprojectforthesoftstarterstart,butaftertheconstructionunitsinstalledpanelarkelectrictest,foundthatsoftstartercannotworknormall
3、y,basedontheanalysistofindthereason,willeventuallytroubleshooting,realizedthenormalstart-stopofthesoftstarter.Inthispaper,thesoftstartercontrolcircuitdesigndefectisanalyzedforthereferenceofthepeer.Equipmentmanagement,equipmentmaintenance,diagnosticR4AChinaequipmentmana
4、gementnetworkhttp://www.sbgl.netPHZKeywords:motorsoftstartfaultEquipmentmanagement,equipmentmaintenance,diagnosticR4AChinaequipmentmanagementnetworkhttp://www.sbgl.netPHZEquipmentmanagement,equipmentmaintenance,diagnosticR4AChinaequipmentmanagementnetworkhttp://www.sbg
5、l.netPHZ0theintroductionEquipmentmanagement,equipmentmaintenance,diagnosticR4AChinaequipmentmanagementnetworkhttp://www.sbgl.netPHZThesoftstarterisamotorintegratedcontroldevicewhichintegratesmotorsoftstart,softparkingandmultipleprotectionfunctions.Itsmaincompositionisc
6、oncatenatedbetweenpowersupplyandwaschargedwithmotorthreeinsteadofparallelthyristoranditselectroniccontrolcircuit,throughthechipcontrolAngleofthyristorphaseshiftcontrol,adjusttheoutputvoltage,theactualforthyristoracvoltageregulator.Whenmotorstarts,itaspartoftheinputvolt
7、age,outputvoltagewhenthethyristorfullconduction,outputvoltageandinputvoltageareequal,softstarterswitchtobypassoperation,itwon'tcausecurrentmutation,thesoftstartercouldlimitthepeaktorque,avoidtocausewaterhammer;Intheprocessofpowerfailure,thespeedofthemotorcanbesmoothedd
8、owntozero,avoidingthesuddenstopofthemotorandthephenomenonofwaterhammer.Equipmentmanagement,equipmentmaintenance,diagn
