中建材集团进出口公司伊拉克AD项目液阻柜附件技术附件.docx
合同附件一技术文本1 .项目概述1.1 项目概述项目位于伊拉克首都巴格达以南320公里,南部城市巴士拉以北约300公里,距离伊拉克南部W-QASER港约380公里，觉物从该港口H1.发，经过260公里高速公路和约120公里普通油漆马路抵达项目现场.项目厂址距离最近的小城AI-SamaWah只有40公里，由油漆马路连接，下了油漆马路大概100O米即可到达.1.2 现场条件1.2.1 使用条件使用地点：伊拉克南部现场海拔高度：平均50m环境温度：最高环境温度：51C,最高日平均温度：37.9,C,年平均最低温度：25.7C,极端最低温度：-29。设备布置：室内降雨量：年最大165川in,最小62.3mm。年沙尘暴天数：21.5天最高风速：150km,hr1.2.2电力状况电机类型：中压电机(2250KW)为滑环电机，变速中压电机应为鼠笼型。低压电机(<250KW)为高效鼠笼电机“额定电压：中压电机(2250KW)为6.6kY±51.,50Hz±2%.低压电机(<250KW)为380±5%,50Hz±2%,控制回路和仪表电源电压为230VAa50Hz。绝缘等级：“F”温升等级：限制为“B”级防护等级：IP542、设备总说明一、设备说明(descriptionofequipment)Cata1.ogueI.Genera1.11.Operationprincip1.eIII. PerformancecharacteristicIV. Technica1.parametersV. Typese1.ectionVI. Insta1.1.ationandcommissionVII. OperatingprocessVIII. BasicmaintenanceIX. Qua1.ityassuranceX. OrderingnoticeXI.MaintenancebondI. Genera1.1.argeormediumsizedwoundrotorasynchronousmotorcannotstartdirect1.yduetothehighstartingcurrent.Theusua1.methodapp1.iedistoseria1.1.yconnectresistor(orimpedance)intherotorcircuittoreducethestartingcurrent.Theorigina1.methodistoseria1.1.yconnecta1.argepowerresistorwhoseva1.uecanbegraded.T1.iestartingeffectisnotsatisfiedduetoIhejuinpingresistanceva1.ueandnoSInOOIhstarting(WiIhmu1.ticurrentimpu1.ses).Thefo1.1.owingcast-ironresistancestarterandoi1.resistancestarterhaveshortages1.ikemanua1.operation,nosmoothstaring,highstartingcurrent(about35Ie)andetc.Thefrequency-sensitivevariab1.eresistanceisdifferentfromtheabovepureresistancestarter,itisastarterdeve1.opeduti1.izingtheprincip1.ethattheCimpedanceoftheinductorreducesasthepassingcurrentfrequencyreduces.A1.thoughitrea1.izesautomaticstaringandisnowp1.ayingamajorro1.einindustria1.enterprise,itsdisadvantages1.ikehighstartingcurrent(about3-4Ie).difficu1.tyinstartingwith1.owvo1.tage,notbeingab1.etosequencedstartingandfrequency-sensiivepackagesbeingeasi1.yburnedbothermanyusers.WYQSeries1.iquidStarterisanewgenerationstartingdeviceforimprovingstarting!Performanceof1.argeormediumsizedasynchronousmotordeve1.opedbyourcompanywith1.iquidresistancetechno1.ogy.Itisthroughseria1.1.yconnecting1.iquidresistor,automatica1.1.yno-po1.cregu1.atingtheresistanceva1.uefromhightozero,andrea1.izingmotornoimpu1.seSmOOthstart.Thisproductovercomesprob1.emswiththeabovestarterssuchashighstartingcurrent,inconvenientoperationandcontinuousstartingunab1.eandsoonandisnowbecomingarep1.acementinmorethantwothousandenterprisesacrossChinaandhasahighreputationforitsoutstandingpertb11nancebyusers.WYQSeries1.iquidStarteriswide1.yusedincement,chemica1.,stee1.meta1.1.urgy,mineandetcwith9060(X)kwwoundasynchronousmotor.II. Operationprincip1.eWeknowfromthemotortheorythatforasynchronousmotor,whenthevo1.tageofthee1.ectricnetworkandfrequencyisinvariant,thestartingtorqueofthemotorcanbeimprovedaftertheresistanceseria1.1.yconnectedtotherotor1.oop.Itsmechanica1.characteristicsarcshowninbe1.owfigure:OR3R2R1.Tw-T-Mechanica1.characteristicoftherotor1.oopoftheasynchronousmotorafterseria1.1.yconnectedIhcresistanceisRI>R2>R3>OFromtheabovefigurewecanseethatseria1.1.yconnectingaproperresistancetotherotor1.oopofthewindingmotorcanreducethestartingcurrentononehand,andincreasethestartingtorqueontheotherhand.Therefore,ifwecanmaketheresistanceseria1.1.yconnectedtotherotor1.oopreducewiththeincreaseoftherotationSPeedofthemotor,wewi1.1.makethemotora1.wayshas1.argestartingtoqueand1.owstartingcurrentinthestartingprocess.WYQseries1.iquidstarteruti1.izesthisprincip1.e:pounde1.ectro1.yteintotherotor1.oopofthecontro1.1.edwindingmotorasthe1.iquidresistanceandmakingtheva1.ueofthe1.iquidresistancea1.waysmcc1.the11xuirc11cntofthemechanica1.characteristicsofthemotorinthestartingprocessbyadjustingthee1.ectro1.yteconcentrationandthedistanceofthetwoe1.ectrodesinorderto1.etthemotorgetthemaxstartingtorqueandminstartingcurrenttosmoothstart.Thespecificworkingprocessis:whenthemainmotorstarts,themovinge1.ectro1.ytemovess1.ow1.ybythedriveofa1.owpowerdrivemechanismandthedistancebetweenthetwoe1.ectro1.yteschanges,(husthevarietyoftheva1.ueofthe1.iquidresistanceintherotor1.oopmeetstheabovetermsandtherotationspeedofthemotorincreases.Whenthedistancebetweenthetwoe1.ectro1.ytesreachestheminimum,therotationspeedbecomestheru1.edva1.ueandIhcresistancewi1.1.beshortcircuited,thusthestartingprocesswi1.1.bedoneandtheoperatingstatewi1.1.beinat1.ast.u,n,1st0.95<no1.31.eStartingCurrentFromtheaboveprocesswecanseethat:becausethe1.iquidresistanceintherotor1.oopisabouttoInCCtIhC11xuircmcniofihcmechanica1.characteristicofthemotorwithothertc11nsnotchanging,thestartingtorqueismain1.ykeptthemaximumandthecurrentiskeptata1.ower1.eve1.Itscharacteristiccurvewhenstartingisbe1.ow:vo1.tagereduceofthee1.ectricnetworkofrotationofthemotorThusstartingpreductionofthee1.ectricnetwork./StartingcharacteristiccurveofWYQseries1.iquidstarterWYQseries1.iquidstartercanmakethemotoracce1.erateinauniformspeedintherocess.ThestartingProCejiSissmoothwith1.
