概述 無刷無環(huán)運(yùn)行器是一種克服了繞線式異步電動(dòng)機(jī)裝有滑環(huán)、碳刷和復(fù)雜的起動(dòng)裝置等缺點(diǎn)，而保留了繞線電機(jī)起動(dòng)電流小，起動(dòng)轉(zhuǎn)矩大等優(yōu)點(diǎn)的起動(dòng)設(shè)備。凡原來采用電阻起動(dòng)器、電抗器、頻敏變阻器、液體變阻起動(dòng)器、軟起動(dòng)器起動(dòng)的JR、JZR、YR、YZR三相繞線轉(zhuǎn)子交流異步電動(dòng)機(jī)(變速、裝有進(jìn)相機(jī)的除外）均可選用 無刷無環(huán)運(yùn)行器 來更新?lián)Q代。SUMMARIZENobrushNoringstarteristoconquerthedefaultoftherings、carbonbrush、andcomplexstartingsetsonwingingasynchronousmotor,andisanequipmenttoreservetheadvantagethatsmallcurrentandlargetorqueofwingingmotor.JR、JZR、YR、YZRthreephasewingingstatoracasynchronousmotorwhousethestarterofresistance、reactor、adjustablerheostatfrequencysensitiverheostat、liquildresistancestarter、soft-starterallcanchoose NoBrushandnoringtostead. 產(chǎn)品優(yōu)點(diǎn)無刷無環(huán)運(yùn)行器把傳統(tǒng)的、繁瑣的、多觸點(diǎn)元件組成的起動(dòng)裝置去掉，采用無刷無環(huán)運(yùn)行，操作簡單，安裝拆卸方便，可大大減少維修費(fèi)用，其優(yōu)點(diǎn)是：去掉滑環(huán)、碳刷、刷盒、刷盒支架、短路環(huán)及二次回路系統(tǒng)中的頻敏變阻器、交流接觸器、時(shí)間繼電器等元件，并可保持電機(jī)原有的運(yùn)行特性。ADVANTAGEOFPRODUCTIONNobrushNoringstarterremovethetraditional、complicated、multiconductioncomponentstartingequipment.itiseasytooperateandinstall,lessrepairingexpense.theadvantageis:tokeeptheoriginaloperationwithoutrings、carbonbrush、brushbox、brushboxshell、shortcircuitringandajustablerheostatfrequencysensitiverheostatonsecondaryloopsystemACconnectorandtimerelay.主要技術(shù)參數(shù)額定頻率：50Hz額定電壓：380V配用電機(jī)功率：15-125KW a.輕載：0.6Me M 0.8Me、2.5Ie b.重載：1.6Me M 2.0Me、3.0Ie MAINTECHNICALPARAMETERRatedFrequency:50HzRatedVoltege:380VAdaptMotorPower:15-125KWa.lightload:0.6Me M 0.8Me、2.5Ieb.heavyload:1.6Me M 2.0Me、3.0Ie 性能特點(diǎn)無刷無環(huán)運(yùn)行器的工作原理是利用電動(dòng)機(jī)在起動(dòng)過程中，轉(zhuǎn)子電流頻率fz隨轉(zhuǎn)子轉(zhuǎn)速升高而降低的關(guān)系fz=f1 S，當(dāng)轉(zhuǎn)子轉(zhuǎn)速由0上升到額定轉(zhuǎn)速Ne時(shí)，轉(zhuǎn)子電流頻率則從50Hz平滑地降至1~3Hz。起動(dòng)器阻抗Zp=rp+jxp,其中鐵損rp的大小與頻率的平方成正比，隨著fz的降低，rp也隨之下降，電抗Xp= LP，同理，Xp也減少。當(dāng)起動(dòng)結(jié)束后，sf1很小，Zp則降到很小甚至近似于零，因此電動(dòng)機(jī)在起動(dòng)時(shí)，既能限制起動(dòng)電流，也能提高功率因數(shù)和增大起動(dòng)轉(zhuǎn)矩，是一種理想的起動(dòng)裝置。PERFORMANCECHARACTERISTICTheprincipleofstarteristousethecurrentfrequencyofstatorfz reducewhenstatorspeedrisingfz=f1xS,whenthespeedofstatorrise0toratedspeedne,currentfrequencyofstatorfrom50hzdownto1-3hz.ofstarterzp=rp+jxp,thesizeofironlossrpisproportionaltofrequencysquare.withthereductionoffz,rpwillgodown,reactancexp= Lp,xpwillreduce.whenthestartingfinish,sf1isverysmall,zpwillgodowntonearlyzero,sowhenstarting,itnotonlylimitthecurrent,butalsoimprovepowerfactorandtorque,whichisanidealstartingequipment.安裝與接線與QXQ無刷自控電機(jī)軟起動(dòng)器方式一致。此電動(dòng)機(jī)轉(zhuǎn)子出頭線有兩種：即50KW以上的電動(dòng)機(jī)轉(zhuǎn)子有6個(gè)出頭線（A-A、B-B、C-C），50KW以下的電動(dòng)機(jī)轉(zhuǎn)子只有3個(gè)出頭線，本公司生產(chǎn)的無刷無環(huán)運(yùn)行器也按功率大小，設(shè)有6個(gè)或3個(gè)接線柱。起動(dòng)器裝配完成后，將轉(zhuǎn)子的出線接在起動(dòng)器接線柱對(duì)應(yīng)位置（對(duì)于有六根出線的電動(dòng)機(jī)，應(yīng)將同一相的兩根導(dǎo)線，對(duì)稱地接在起動(dòng)器的兩個(gè)接線柱上）即可，具體接線如下圖所示。INSTALLATIONANDCONNECTIONItisthesameasWZRNoBrushself-controlledmotorsoftstarter.Thereis2kindofout-headlineofmotorstator:6out-headlineofmorethan50KWmotorstator(A-A、B-B、C-C).3out-headlineoflessthan50kwofstator.thestarteralsobedesigned6-3bindingpostaccordingtopower.afterfinishingtheinstallation,plsconnectthelinetocorresponding locationofbindingpost. 結(jié)構(gòu)尺寸STRUCTUREANDSIZE