SJZ系列三相380/220伏SJZseriesthreephase380/220VLargeCapacity大容量電壓自動(dòng)分級(jí)補(bǔ)償裝置LargeCapacityvoltageautogradingcompensationdevice上海鑫揚(yáng)電器有限公司

ShanghaiXinyangElectricalCo;Ltd公司簡(jiǎn)介上海鑫揚(yáng)電器有限公司是生產(chǎn)有載自動(dòng)調(diào)壓器的專業(yè)公司，擁有一批專業(yè)工程技術(shù)人員，生產(chǎn)出調(diào)整交流電壓的優(yōu)質(zhì)新產(chǎn)品。經(jīng)能源部華東地區(qū)低壓電器質(zhì)量檢驗(yàn)中心檢驗(yàn)合格，并取得國(guó)家專利，專利號(hào)：。在新世紀(jì)，本公司將不斷應(yīng)用高新技術(shù)，研制開發(fā)調(diào)壓器新品種，以質(zhì)量第一，服務(wù)至上為宗旨，始終貫徹用心選料，精心制作、誠(chéng)信服務(wù)的原則。一切從滿足用戶要求為目標(biāo)，為社會(huì)各界提供放心的產(chǎn)品和優(yōu)良的售后服務(wù)。CompanyBriefingShanghaiXinyangElectricalCo.,Ltdisaprofessionalcompanyinmanufacturingon-loadautomaticvoltageregulator,withagroupofprofessionalengineerstoproducesuperiornewproductsforACvoltageregulation.OurproducthasbeeninspectedasqualifiedbyResourcesDepartment’sLowVoltageApparatusQualityInspectionCenterinEasternChinaandacquirednationalpatentnumbered.Enteringthenewcentury,thecompanyshallcontinuouslymakeuseofhi-techtechnologytoresearchanddevelopnewtypesofregulator.Givingtopprioritytoqualityandholdingtheideathatserviceisparamount,thecompanyalwaysimplementstheprincipleofcarefulmaterialselection,accuratemanufacturingandtrustfulservice.Thecompanyaimsallatsatisfyingthecustomer’srequirementstoprovideassuredproductsandexcellentafter-saleserviceforthewholesociety.產(chǎn)品概述SJZ系列三相380/220伏大容量電壓自動(dòng)分級(jí)補(bǔ)償裝置（以下簡(jiǎn)稱調(diào)壓器），是采用新設(shè)計(jì)理念，結(jié)合世界先進(jìn)技術(shù)生產(chǎn)的專利產(chǎn)品。它采用分級(jí)補(bǔ)償調(diào)壓技術(shù)，當(dāng)測(cè)得電壓有偏移時(shí)，調(diào)壓器通過接觸器群改變一次繞組的連接方式，從而提供不同的補(bǔ)償電壓，加入到供電回路。使輸出電壓保持在額定范圍內(nèi)。本系列產(chǎn)品功能完善、品質(zhì)優(yōu)良，與同類產(chǎn)品相比，具有體積小、重量輕，無碳刷、無伺服電機(jī)、無機(jī)械傳動(dòng)等優(yōu)點(diǎn)。本裝置可與變壓器聯(lián)用，也可在遠(yuǎn)端供電場(chǎng)所分散使用。對(duì)電網(wǎng)和負(fù)載的適應(yīng)性特強(qiáng)，能在各種不同性質(zhì)的負(fù)載情況下可靠地連續(xù)的工作。自動(dòng)調(diào)壓響應(yīng)特快，調(diào)壓過程中無斷電間隙，且效率高、容量大，使用壽命長(zhǎng)，達(dá)到長(zhǎng)期免維護(hù)連續(xù)工作的要求。使用本裝置后，可使電壓保持在額定電壓的土％以內(nèi)，可使用電器的電耗減少10%以上，而調(diào)壓器的本身電耗不到1%，所以本產(chǎn)品有明顯的節(jié)能意義。本產(chǎn)品廣泛適用于一切需要電壓穩(wěn)定的場(chǎng)所，如發(fā)電廠、國(guó)防、科研、醫(yī)院、郵電、高層建筑、鐵路、工礦企業(yè)及賓館照明等部門使用。ProductOverviewSJZseries3-phase380/220Vlargecapacitygradingcompensationon-loadautomaticvoltageregulator(regulator)isapatentedproductdesignedbynewideawiththeworldmanufacturingexperience.Whenthesensordetectedthevoltagedeviations,regulatorthroughthecontactorschangestheregulator’sprimarywindingsconnections,andsuppliesdifferencecompensationvoltageaddedtothepowersourcethenmaintaintheratingvoltageoutput.Thisseriesofproductsareperfectinfunctionsandsuperiorinquality.Comparedwithproductsoftheothers,theyaresmallerandlight,withoutbrushes,drivenmotorandmechanicaldevices.Theregulatorassembledwiththedistributiontransformerorotherpowersourcecanbeusedforutilitypowersupply.Ithasfinecompatiblewithallkindofutility,abletoworkreliablyandcontinuously.Itishighresponsibilityanduninterruptedpowersupplyduringtheprocessing.Itishighefficiency,freemaintenance,largecapacityandlonglifeterm.Applingthisregulator,thevoltagecanbemaintainedwithin±%oftheratedvoltage.User’sconsumptioncanbereducedbymorethan10%,buttheregulatorconsumptionitselfjustlessthan1%,theefficiencyofenergysavingisobviously.Theproductcanbeusedforallareasneedingstablevoltage,suchaspowerplant,nationaldefense,scientificresearch,postoffice,highbuilding,railwaystation,industrialandmineralenterprisesandhotels.使用條件Conditionsforapplication1、電壓自動(dòng)調(diào)壓器應(yīng)在戶內(nèi)使用。Thevoltageautoregulatorshouldbeusedindoors.2、環(huán)境溫度-25°C?55°C。Environmenttemperatureis-25C?55C.3、海撥高度不超過2000米。Thealtitudenotexceeds2000meters.4、相對(duì)濕度不超過90%。Relativehumiditydoesnotexceed90%.5、安裝場(chǎng)所無嚴(yán)重影響調(diào)壓裝置絕緣的氣體、蒸汽、化學(xué)性物質(zhì)，無強(qiáng)烈振動(dòng)。Theinstallationareashouldnothavecorrosivegas,steam,chemicalmatterandstrongvibrationthatcanaffectinsulationoftheregulator.設(shè)計(jì)特點(diǎn)1、無碳刷使用補(bǔ)償變壓器提供一補(bǔ)償電壓加入到電源回路，從而保持輸出電壓在額定范圍內(nèi)。使用接觸器群來改變補(bǔ)償變壓器一次繞組的連接，可得到不同的補(bǔ)償電壓輸出，完全避免了由于碳刷滑動(dòng)與磨損產(chǎn)生火花所引發(fā)的高頻干擾，以及延長(zhǎng)了使

用壽命。2、無電機(jī)、鏈條及齒輪結(jié)構(gòu)簡(jiǎn)單，無電機(jī)、鏈條齒輪等傳動(dòng)系統(tǒng)。無機(jī)械故障，從而達(dá)到經(jīng)久耐用的目的。3、功率因素補(bǔ)償系統(tǒng)（選件）對(duì)感性負(fù)載大的用戶，可選配自動(dòng)功率因數(shù)補(bǔ)償裝置，補(bǔ)償后功率因數(shù)可達(dá)99%。4、浪涌吸收裝置主電路設(shè)有浪涌吸收裝置，可吸收接觸器轉(zhuǎn)換過程中的浪涌電壓。5、防雷擊裝置（選件）可跟據(jù)用戶需要按裝防雷摸塊。6、遠(yuǎn)程控制（選件）可根據(jù)用戶需要安裝遠(yuǎn)程通信接口。7.三相分調(diào)控制式（選件）根據(jù)用戶需要，做成三相分調(diào)控制以保證三相電壓的平衡。8.照明智能控制式（選件）根據(jù)用戶需要，做成智能型開與關(guān)及自動(dòng)降壓節(jié)能照明。設(shè)計(jì)方案（1）Schematicdiagram（l）設(shè)計(jì)方案設(shè)計(jì)方案（1）Schematicdiagram（l）設(shè)計(jì)方案（2）Schematicdiagram（2）DesignCharacteristics1.NobrushOnethreephasescompensationtransformersupplyacompensationvoltageaddedtothepowersource,thenmaintaintheratingvoltageoutput.Usingcontactorsswitchingcompensationtransformerprimarywindingsconnectionto

obtaindifferentcompensationvoltageoutput,fullyavoidthedefectssuchashighfrequencydisturbancecausedbythesparksduetomechanicalabrasionandmovementofbrushandprolongtheproduct’slifeterm.2.Nomotor,chainsandgearandfreemaintenanceSimplestructurewithoutmotoranddrivingsystemsuchaschainandgear.Avoidedmechanicalfailure。3.Powerfactorcompensationsystem(option)Thepowerfactorcanbecompensatedto99%。4.SurgeabsorbingdeviceThemaincircuitisfurnishedwithsurgeabsorbingdevicetoabsorbthesurgevoltageinthetransformationprocessofthecontactdevices。5.Arrester(option)TheArrestermodulecanbeinstalledasrequiredbytheuser。6.Remotecontrol(option)Remotecommunicationinterfacecanbeinstalledasrequiredbytheuser。system(optional)Madeintothree-phaseseparate-adjustmentcontrolasperuser’srequirements,toassurethebalanceofthree-phasevoltage。8.Intelligencelightingcontrolsystem(optional)Madeintointelligenceswitchandvoluntarilystep-downenergy-savinglighting。Therearetwoschematicdiagramforswitchgearuseshowasbelow.型號(hào)規(guī)格口JZ口口一口I額定容量（kVA）A：左輸入、右輸出B：右輸入、左輸出I：380/220V±10%II：380/220V±20%有載自動(dòng)調(diào)壓裝置交流，：三相D：?jiǎn)蜗郤pecifications口”□□一□Ratedcapacity(kVA)A：Ieftinput,rightoutputB：rightinput,IeftoutputI：380/220V±10%II：380/220V±20%On-IoadantoregulatorA.C.S：3-phaseD：singlephase主電路方框圖

MainCircuitBlockDiagram產(chǎn)品性能Performance序號(hào)No.項(xiàng)目Item性能Performance1輸入電壓InputvoltageI型ModelI:380/220V±10%II型ModelII:380/220V±20%

2輸出電壓Outputvoltage型ModelI:380/220V±%型ModelII：380/220V±5%3切換時(shí)間ResponsetimeW4實(shí)際效率EfficiencyN99%5溫升Temperaturerise<80K6絕緣電阻Insulationresistance〉2MQ7頻率Frequency50/60HZ8絕緣強(qiáng)度voltagewithoand2500V/1minute9輸出電壓波形Outputvoltagewave與輸入電壓一樣，無波形畸變、無諧波增量Sameasinputvoltage,Nowavedistortionandnoharmonicincrement主要功能MainFunctions序號(hào)No.項(xiàng)目Item功能Functions1延時(shí)起動(dòng)功能Outputtimedelay每次受電后，調(diào)壓器立即進(jìn)入“直通”狀態(tài)工作，但自動(dòng)控制系統(tǒng)將延時(shí)3-5秒鐘后進(jìn)入正常工作狀態(tài)，以免受電沖擊引起自動(dòng)控制系統(tǒng)紊亂。Wheninitialtheregulatororvoltagerecoveryafterthelossofpowersource,thevoltageregulatoroutputwillbedelay3-5Stoprotecttheapparatusfromdamagebytheelectricimpact.

2短路限流功能Currentlimited當(dāng)調(diào)壓器輸出端發(fā)生短路，造成電壓下降到額定電壓的70%以下時(shí)，調(diào)壓器中的補(bǔ)償變壓器一次繞組自動(dòng)轉(zhuǎn)入開路狀態(tài)，串聯(lián)在主回路中的補(bǔ)償繞組將產(chǎn)生很大的電壓降，可顯著減小短路電流。Whentheinputvoltageislessthan70%oftheratedvoltageiftheoutputshortcircuit,theregulatorprimarywindingsopenduotocontactorsopen.Secondarywindinglikeareactortolimittheshortcircuitcurrent.3缺相、報(bào)警功能Lackofphaseprotection當(dāng)三相輸入電壓出現(xiàn)缺相時(shí)，調(diào)壓器自動(dòng)返回直通狀態(tài)，并報(bào)警。Wheninputthreephasevoltageoccurlackofonephasetheregulatorshallautomaticallyreturnbacktothestatusoffeed-throughandgiveanalarm.4浪涌保護(hù)功能Surgeprotection調(diào)壓器裝有浪涌保護(hù)裝置，以消除接觸器切換過程中產(chǎn)生的浪涌電壓。Theregulatorisfurnishedwithsurgeprotectiondevicetoeliminatethesurgevoltageintheswitchprocessofcontactdevice.規(guī)格及外形Specificationsanddimenaions型號(hào)規(guī)格Type額定容量(kVA)Ratedcapacity(kVA)額定電流(A)Ratedcurrent(A)輸入電壓(V)Inputvoltage(V)SJZ—101015I型：ModelI：三相343?419/單相198?242II：型ModelII:三相304?457/單相176?264SJZ—202030SJZ—303045SJZ—505076SJZ—636395SJZ—8080121SJZ—100100152SJZ—125125189SJZ—160160242SJZ—200200303SJZ—250250379SJZ—315315477SJZ—400400606SJZ—500500758SJZ—630630955SJZ—8008001212SJZ—100010001515SJZ—125012501894SJZ—160016002424SJZ—200020003030SJZ—250025003788SJZ—315031504786注：用戶如對(duì)產(chǎn)品調(diào)壓范圍及外形尺寸有特殊要求，Note:Iftheuserhasspecialrequirementsfordimension,wecanprovidespecialdesign.輸出電壓(V)Outputvoltage(V)相數(shù)Phase工作頻率(Hz)frequency(Hz)外形尺寸(mm)深X寬X高dimensions(mm)depthXwidthXheight220V/380V±%220V/380V土5%相3-phase50?60400X600X1000400X600X1000400X600X1000400X600X1500400X600X1500600X600X1800600X600X1800600X600X2200600X600X2200600X800X2200600X800X2200800X800X2200800X800X2200800X800X2200800X1000X2200800X1000X22001000X1000X22001000X1200X22001000X1200X22001000X1400X22001200X1400X22001500X1500X2200可另行設(shè)計(jì)。theproduct’sregulationrangeandexternal工作原理補(bǔ)償變壓器每相具有兩組完全相同的220V初級(jí)繞組，從次級(jí)繞組上獲得的補(bǔ)償電壓串接于主電路中，其單相接線圖如圖。補(bǔ)償裝置的輸出電壓與輸入電壓之間存在如下關(guān)系。U2=U1+AU式中：U2—輸出相電壓U1—輸入相電壓AU為補(bǔ)償電壓。它的大小和相位與補(bǔ)償變壓器初級(jí)繞組的連接方式有關(guān)。如把兩個(gè)初級(jí)繞組串聯(lián)連接后正向接入網(wǎng)絡(luò)的相電壓，則可得到一個(gè)與網(wǎng)絡(luò)相電壓同相的補(bǔ)償電壓；若反向接入，則得到一個(gè)反相補(bǔ)償電壓。另外，如將兩個(gè)補(bǔ)級(jí)繞組并聯(lián)后正向或反向接入網(wǎng)絡(luò)的相電壓，則可得到為串聯(lián)時(shí)2倍的正相或反相補(bǔ)償電壓。如果兩個(gè)初級(jí)繞組不接入網(wǎng)絡(luò)，并使之短接，則補(bǔ)償電壓為零，即U2=U1。本裝置是根據(jù)上述要求確定了接觸器的五種通、斷狀態(tài)。1、直通檔：K1—K3接通，Kd1—2、Kh1—2斷開，此時(shí)K1—K3的主觸頭閉合，使初級(jí)繞組短接；Kd1—2、Kh1—2的主觸頭斷開，使初級(jí)繞組不接入網(wǎng)絡(luò)，因此補(bǔ)償電壓為零。2、降I檔：K1接通，K1的主觸點(diǎn)閉，K2、K3斷開，K2、K3的主觸頭斷開，初級(jí)繞組串聯(lián)連接；Kh1—2接通，Kh1—2的主觸頭閉合，Kd1—2斷開，Kd1—2的主觸頭斷開，使初級(jí)繞組正向接入網(wǎng)絡(luò)相電壓，在次級(jí)繞組上得到一級(jí)正相補(bǔ)償電壓，輸出電壓比輸入電壓低一級(jí)補(bǔ)償電壓。3、降II檔：與降I檔的區(qū)別在于K1斷開，K2、K3接通，初級(jí)繞組改變成并聯(lián)連接。次級(jí)繞組上得到二級(jí)正相補(bǔ)償電壓，輸出電壓比輸入電壓低二級(jí)補(bǔ)償電壓。4、升I檔：與降I檔的區(qū)別在于Kh1—2斷開，Kd1—2接通，使初級(jí)繞組反相接入網(wǎng)絡(luò)相電壓，在次級(jí)繞組上得到一級(jí)反相補(bǔ)償電壓，輸出電壓比輸入電壓高一級(jí)補(bǔ)償電壓。5、升II擋：與升I檔的區(qū)別在于初級(jí)繞組由串聯(lián)改變成并聯(lián)連接，即K1斷開，K2、K3接通。因此在次級(jí)繞組上得到二級(jí)反相補(bǔ)償電壓，輸出電壓比輸入電壓高二級(jí)補(bǔ)償電壓。交流接觸器的切換是按輸出電壓的指令來進(jìn)行的，只要輸出電壓超出設(shè)定的最高最低允許值，通過接觸器的切換使之恢復(fù)到允許值之內(nèi)。換擋的切換過程在2個(gè)周波（40ms）內(nèi)完成。principlesEachphaseofthecompensationtransformerhastwosimilarsetsof220Vprimarywindings.Thecompensationvoltageacquiredfromsecondarywindingisconnectioninaserialtothemaincircuit.Thesingle-phaseconnectiondrawingisshowninthefigure.Outputvoltageandinputvoltageofthecompensationdevicehavethefollowingrelations.U2=U1+AUIntheformula:U2—outputphasevoltageU1—inputphasevoltageAUisthecompensationvoltage,andtheamplitudeandphasepositionhasrelationswiththeconnectionmethodofthecompensationtransformerprimarywindings.Ifinseriestwoprimarywindingsareconnectedtothepowersourcewithsamepolarity(positivepolarity),asamephasepositioncompensationvoltageisobtained.Otherwise,inseriestwoprimarywindingsareconnectedtothepowersourcewithnegativepolarity,areversephasepositioncompensationvoltageisobtained.Besides,iftwoprimarywindingsareparalleled,thecompensationvoltageamplitudewillbeincreasedonetimes.Iftwoprimarywindingsshortcircuitanddisconnectedfromthepowersource,thenthecompensationvoltageshallbezero,Toswitcheightcontactorsrealizeabovefivevoltageregulationfunctions.6、Feed-throughposition:K1—K3close,Kd1—2andKh1—2open.ContactK1—K3closedmaketheprimarywindingshortcircuit;contactKd1—2andKh1—2openarecutofftomaketheprimarywindingtodisconnectedfrompowersourcesothatthecompensationvoltageiszero.7、DecreaseIposition:K1close,andthenK2andK3open.Theprimarywindingsareconnectedinaseries;Kh1—2closeandKd1—2openmaketheprimarywindingconnectedtothepowersourceinpositivepolarity,onepositivephasecompensationvoltageisobtainedatsecondarywinding.Theoutputvoltageis1levellessthantheinputvoltage.8、DecreaseIIposition:thedifferencesfromDecreaseIpositionare:K1open,K2andK3closeandtheprimarywindingsareparalleled.Theoutputvoltageislessthantheinputvoltage2levels.9、IncreaseIposition:thedifferencefromDecreaseIpositionare:Kh1—2open,Kd1—2closemaketheprimarywindingconnectedtothepowersourceinreversepolarity,onereversephasecompensationvoltageisobtainedatthesecondarywinding.Theoutputvoltageis1levelmorethantheinputvoltage.10、IncreaseIIposition:thedifferencefromincreaseIpositionare:seriesconnectionischangedintoparallelconnection,namelyK1open,K2andK3areclosesothatIIlevelreversedphasecompensationvoltageisobtainedatthesecondarywinding.Theoutputvoltageismorethantheinputvoltage2levels.Uponthemeasuredvoltageofoutput,ACcontactorswillbeswitchedaccordingtothecontrollercommend.Oncetheoutputvoltageoverthemaximumsettingorbelowtheminimumsetting,itcanberecoveredtonominalvoltagewithin2cyclicwaves(40ms).安裝及受電1、開箱檢查電壓分級(jí)補(bǔ)償裝置的電器元件是否完整無損。各種連接緊固件必須緊固可靠。檢查柜內(nèi)所附技術(shù)資料、合格證、是否齊全，完整。2、通電前檢查斷開斷路器(Q),取出控制回路及電壓表回路的熔斷器。用500V兆歐表測(cè)量主電路的相間和相對(duì)地絕緣電阻，應(yīng)大于1兆歐。然后恢復(fù)原狀。3、接線（1）進(jìn)出導(dǎo)線（母排）截面應(yīng)按容量大小依據(jù)額定電流由用戶確定。（2）電源必須接在輸入端，負(fù)載接在輸出端。（3）調(diào)壓器必須接通零線，（N）線從輸入端與輸出端直接貫通。（4）柜體必須可靠接地。4、受電步驟（1）送上電源，此時(shí)調(diào)壓器上輸入、輸出電壓表指示相同的電壓，“直通指示”燈亮。本裝置初次受電時(shí)，輸出端應(yīng)在空載狀態(tài)，以后允許帶負(fù)荷受電。（2）按下“自動(dòng)”按鈕（紅色），“自動(dòng)指示”燈亮。此時(shí)調(diào)壓器動(dòng)作，使輸出電壓在規(guī)定的范圍內(nèi)。（3）若要將自動(dòng)調(diào)壓功能退出，只需按下“直通”按鈕（綠色），此時(shí)“直通指示”燈亮，輸出電壓與輸入電壓相同。（4）本裝置每次斷電后恢復(fù)供電時(shí)，總處于“直通”運(yùn)行狀態(tài)，若要進(jìn)入自動(dòng)調(diào)壓功能，需按下“自動(dòng)”按鈕（紅色）。（5）如用戶需每次斷電后恢復(fù)供電時(shí)，調(diào)壓器自動(dòng)進(jìn)入自動(dòng)調(diào)壓狀態(tài)，可選擇加裝“自動(dòng)---手動(dòng)”功能，但需在訂貨合同中注明。InstallationandtestI、OpentheboxtocheckWhethertheelementsofthevoltageregulatorareperfectwithoutdamage.Allconnectionfastenersshouldbesolidandreliable.Checkwhetherthetechnicalinformationandqualifiedcertificateinsidethecabinetarecompleteandperfect.II、InspectbeforepoweronOpenthebreaker(Q),pushoffthefuse(RD)onthecontrolcircuit,anddisconnecttheinputvoltagemeter.Settheoutputvoltagecontrolswitchtooff.Use500Vmega-ohmmetertomeasuretheinsulationresistancebetweenthephasestophaseandphasetogroundonthemaincircuit,whichshouldbemorethan1mega-ohm.Thenreturnbacktotheoriginalstatus.III、Lineconnectiontheusershouldinaccordancewiththeratedcurrentdeterminetheconductscross-sectionofthelineinandlineout.Thepowershouldconnecttotheinputterminalsandtheloadshouldconnecttheoutputterminals.Theregulatorshouldconnectthezerolineforuseandbeconnectedtotheloaddirectlythroughthepower.Thecabinetshouldbegroundingreliably.IV、ProcessforinitialTurnonthepower.Theinputandoutputvoltagemeterontheregulatorshouldindicatethesamevoltage.“Thefeed-throughindication”indicatorlightsup.Indicatethisdeviceallowspower-onwithload.Pushdown"Auto”button(red)and“Autoindication”indicatorlightsup.Theoutputvoltageatthistimeshouldbewithintheregulatedrange.(3)Iftheautoregulatingfunctionshouldquit,onlyneedtopushdown“feed-through”button(green)andthe“feed-throughindication”indicatorlightsup.Theoutputvoltageandinputvoltageareequal.(4)Aftereachpower-offandvoltagerecover,theregulatoralwaysresetto“feed-through”Pushdown"Auto”button(red),theregulatorentersthe"Auto”function.Aftereachpower-offandvoltagerecover,needregulatorkeepinthe"Auto”status,usermayselectthe“automanual”option.使用須知1、調(diào)壓器投入運(yùn)行前應(yīng)詳細(xì)了解受電步驟。2、負(fù)載電流不應(yīng)超過允許值。3、輸入電壓在允許范圍內(nèi)，輸出電壓不在規(guī)定的范圍內(nèi)應(yīng)立即進(jìn)行檢查。輸入電壓超出允許范圍，輸出電壓也將超出規(guī)定范圍，若對(duì)用戶影響不大，則可繼續(xù)使用。4、本裝置沒有獨(dú)立的分相控制功能，因此，輸入電壓的不平衡將引起輸出電壓的不平衡。如用戶需分相控制，可特殊設(shè)計(jì)制造。5、本裝置經(jīng)過72小時(shí)連續(xù)試運(yùn)行；正常條件下使用，能在額定負(fù)荷下長(zhǎng)期連續(xù)運(yùn)行，無需專人監(jiān)視。Instructions1、Fullyunderstandtheapplicationmethodsbeforetheregulatorisputtouse.2、Theloa