资源描述：
《污水泵软启动故障的处理（treatment of soft start failure of sewage pump）》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、污水泵软启动故障的处理（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
