低压无功补偿柜操作规程

在成套装置接线正确无误、供电电源正常的状况下，将电容补偿柜的智能无功功率掌握器的电源开关〔微型断路器〕临时置断开位置〔OFF位置〕，成套装置各柜体里面的其他电源开关〔微型断路器〕均置接通位置〔ON位置〕。1#进线柜里面的主电路开关〔塑壳断路器〕均置接通位置〔ON位置〕。进线开关柜〔1#柜〕内的主断路器〔QF1为电动预储能合闸方式，其合闸过3操作。首先按下“储能”按钮，主断路器储能电动机动作并带动弹簧开头储能，储能完毕后〔此时储能指示灯亮〕，按下“合闸”按钮，弹簧储能释放，使主断路器〔QF1完成合闸动作。主断路器合闸后，合闸指示灯亮，分闸指示灯灭，储能指示灯也灭。13操作完成之后，且各种指示均正常的状况下，转换开关切换到手动状态〔非自动状态〕后，旋转转换开关，投切相应电容，对应的回路指示灯亮，接触器线圈吸合，主回路中接触器接通后其下接电容投入到电网中。 此时可检测整个系统中各个电容的回路是否正确。在各种指示均正常的状况下，接通电容柜智能无功功率掌握器的电源开关 〔置ON位置〕，掌握器接通电之后显示”CAI”,5秒后进入自开工作状态，如输入电流符合最小要求〔大于150mA,将显示所测电网功率因数cos©。此时可设置控制器的参数，可将掌握器的“功率因数值”cos©设置为0.95或者0.96〔要比所测电网功率因数cos©大〕，同时设定模式设置为人工设定模式。将转换开关切换至自动状态，将“投切允许”打至右位即〔ON位置〕，无功补偿成套装置将投入正常工作。此时可以手动按下无功补偿掌握器上的”增加”按钮来投切相应电容，对应的回路指示灯亮，接触器线圈吸合，主回路中接触器接通后其下接电容投入到电网中，直到补偿后的功率因数到达预定的设置为止，而相反按“削减”可切除相应电容。当设定参数时，将掌握器的“功率因数值”cos©0.95或者0.9〔要比所测电网功率因数cos©大〕，可将设定模式设置为全自动设定模式。此时将“投切允许”打至右位即〔ON位置〕，将转换开关切换至自动状态无功补偿成套装置将投入正常工作。此时掌握器将进展“自学过程”，在数据初始化过程中，掌握器按既定“功率因数值”与现配电系统作比较，并系统地启动电容器，改善功率因数，同时记录所接入电容器组的值，查找到最小电容器组作为无功投入门限。此时对应的回路指示灯亮，接触器线圈吸合，主回路中接触器接通后其下接电容投入到电网中，直到投入电容器组到达投入门限为止。此时按下“增加”键可调出动态参数显示代码：1〔电流〕，U〔电压〕，Q〔无功功率〕，P〔有功功率〕，再按“削减”键可调出动态参数对应显示值，按”菜单设置”键可返回主显示值：功率因数cos©。假设要使自动无功补偿成套装置停顿运行，应先将转换开关切换至手动状态〔HAND高于额定电压〔380V,400V〕，此时掌握器可自动快速〔5秒〕逐级切除已投入的电容器组，并显示电压值。而将电流互感器的次级信号调至低于150mA寸，掌握器会封锁电容器的投入，并同时自动快速〔5秒〕逐级切除已投cos©设置为0.95或者0.96〔要比所测电网功率因数cos©大〕，同时设定模式设置为人工设定模式。将转换开关切换至自动状态，将“投切允许”打至右位即〔ON位置〕，无功补偿成套装置将投入正常工作。此时可以手动按下无功补偿掌握器上的”增加”按钮来投切相应电容，对应的回路指示灯亮，接触器线圈吸合，主回路中接触器接通后其下接电容投入到电网中， 直到补偿后的功率因数到达预定的设置为止，此时假设再连续投切，超过预设“功率因数值”时，掌握器可自动快速〔5秒〕逐级切除已投入的电容器组。接通风机电源，柜迎风机利用温度掌握器进展自动掌握。顶部的风机由温控开关掌握，当温度到达预定温度时，温控开关接通，风机开头运行；当温度低于预定温度时，温控开关断开，风机停顿运行。英文版：Step1:Whenthecompletedevicewiringiscorrect,thepowersupplysituationisnormal,putthepowerswitchofintelligentcapacitorcompensationtotheoffposition〔OFFposition〕temporarily,andsettheotherpowersupplyofeachcabinettotheonposition〔ONposition〕.Step2:Themaincircuitswitchinsidethe1#linecabinetarearrangedonposition(ONposition),thenmain thecircuitbreaker(QFI)insidein1#cabinetwillinthepositionofelectricstorage,theclosingprocesspleasereadthefollowing3operations.Step3:First,pressthe“storage”button,theelectricmotorofthemaincircuitbreakerbegintostoragetheenergy,thentheindicatinglampofstorageisbrightattheendofthisstep.Secondly,pressthe “close”button,themechanicalspringreleasetheenergy,soastoputthemaincircuitbreaker(QF1)totheclosingposition.Thirdly,afterthemaincircuitbreakerisclosed,theclosingindicatorlightsisbright,thebrakelightsandtheindicatinglampofstorageisextinguished.Step4:WhentheStep1toStep3arecomplete,andallinstructionsareundernormalcircumstances,ifyouswitchrotarytomanualmode(nonautomaticstate),youcanswitchthecapacitor.Thentheindicatinglampcorrespondingcircuitisbright,thecoilofthecontactorisattracted,atthesametime,thecontactorinmaincircuitisswitchedon,andthecapacitorisinputintothegrid.Nowyoucandetectwhethereachcircuitofcapacitanceinthesystemiscorrectornot.Step5:Whenallinstructionsareundernormalcircumstances,putthepowerofintelligentwattlesscontrollerinsidecapacitorcabinettotheonposition,thecontrollerwilldisplay“CAL”afteritisswitchedon,anditwillgetintotheautomaticstatusin5seconds,ifthecurrentofinputcansatisfiestheminimumpreset(suchasgreaterthan150mA),itwilldisplayPowerFactor(cos$).Thenyoucansettheparametersofthecontroller,youcansetthePowerFactorto0.95or0.96(itmustbegreaterthanthemeasuredpowerfactorcos$),andsetthemodeinManualmode.Thenyoucanswitchtheconversiontoautomaticstate,andputthe“switchingallows“totherightlocation(positionON),andthewattlesscompensationequipmentwillbeputtowork.Nowyoucanpressed“add”buttononthewattlesspowercompensationcontrollertoswitchthecorrespondingcapacitor,theindicatorlightscorrespondingcircuitarebrightatthesametime,thecontactorcoilisattracted,andcontactorinmaincircuitisswitchedon,andthecapacitorisputintothegrid,untilthePowerFactorreachesthepredeterminedset,whereaspress “sub”buttoncancutoffthecorrespondingcapacitor.Whenyousettheparametersofthecontroller,youcansetthePowerFactorto0.95or0.96(itmustbegreaterthanthemeasuredpowerfactorcos$),andsetthemodeinAutomaticmode.Thenyoucanputthe“switchingallows“totherightlocation(positionON),andswitchtheconversiontoautomaticstate,thewattlesscompensationequipmentwillbeputtowork.Thecontrollerwillbesetin“self-learning”process,whenitinitializesthedata,itwillcomparethePowerFactorwhichisswitchedthecapacitorintothegridtothePowerFactorwhichispresetinthecontroller,thenstartthecapacitorsystematically,soastoimprovethePowerFactor,andtakearecordaboutthevalueofcapacitoratthesametime,justtogettheminimumnumberofthecapacitorgroupasthethreshold.Atthistime,theindicatorlightscorrespondingcircuitarebrightatthesametime,thecontactorcoilisattracted,andcontactorinmaincircuitisswitchedon,andthecapacitorisputintothegrid,untilthenumberitinputsreachestothethreshold.Thenyoucanpressthe“add”buttontoshowthedynamicparameter:l(regardascurrent),U(regardasvoltage),Q(regardaswattlesspower),P(regardasactivepower),andyoucanpress“sub”buttontoshowthevaluecorrespondingtotheparameters,andyoucanalsopress“menu“toreturntothemainscreentodisplaythevalue:PowerFactor(cos $).Step6:Ifyouwanttostoptheautomaticwattlesspowercompensationequipment,youshouldconverttheswitchtomanualstate,thewholecapacitorsitinputswillbecutoff.Ifyouwanttotestthefunctionofprotectionofthecontroller,youcansetthevoltage,whenithigherthantheratedvoltage(suchastheratedvoltageis380V,andyoucanputthevoltageto400V),nowthecontrollercangraduallycutoffthecapacitorwhichhasbeeninvestedautomaticallyandquickly,anddisplaythevoltageatthesametime.Whileyousetthesecondarysignalofthecurrenttransformerbelow150mA,thecontrollerwilllocktheinvestmentofthecapacitor,andthecontrollercangraduallycutoffthecapacitorswhichhavebeeninvestedautomaticallyandquickly.Andwhenyousettheparametersofthecontroller,youcansetthePowerFactor(cos $)to0.95or0.96(itmustbegreaterthanthemeasuredpowerfactorcos$),andsetthemodeinManualmode.Thenyoucanswitchtheconversiontoautomaticstate,andputthe“switchingallows“totherightlocation(positionON),thewattlesscompensationequipmentwillbeputtowork.Nowyoucanpressed“add”buttononthewattlesspowercompensationcontrollertoswitchthecorrespondingcapacitor,theindicatorlightscorrespondingtocircuitarebrightatthesam