Nyob rau hauv dav dav, steel collector rings muaj zoo hnav tsis kam thiab siab mechanical zog, yog li lawv feem ntau yog siv nyob rau hauv synchronous motors nrog ib tug loj sib txawv nyob rau hauv lub collector nplhaib hnav vim polarity. Cov hlau tuaj yeem siv rau hauv cov txheej txheem nyuaj, thiab nws yog cov khoom siv yooj yim thiab pheej yig, thiab yog li siv dav hauv synchronous motors nrog rau cov tshuab hluav taws xob hydroelectric uas tsis tshua muaj peripheral speeds. Rau lub nplhaib plam, uas feem ntau hais txog lub zog ntawm lub zog thiab hnav tsis kam ntawm qhov siab peripheral speeds, zoo li lub turbogenerator, forged steel yog qee zaum siv. Tsis tas li ntawd, thaum yuav tsum muaj kev tiv thaiv corrosion, stainless hlau tuaj yeem siv tau, tab sis cov yam ntxwv zawv zawg ntawm cov hlau tsis ruaj tsis khov, thiab kev sib xyaw ua ke tsis zoo nrog cov txhuam hniav yuav ua rau cov txhuam hniav dhia, uas yuav ua rau kub dhau los yog hnav tsis zoo. ntawm txhuam, yog li nws yuav tsum tau muab ob npaug rau thaum siv. Daim ntawv ceeb toom. Piv nrog rau steel collector rings, tooj liab collector rings xws li bronze castings muaj zoo zawv zawg yam ntxwv, yog li ntawd lawv yog dav siv. Cov rings collector yog hnav los yog cov txhuam hniav yog hnav txawv txav.
Nyob rau hauv kev koom tes ntawm lub nplhaib collector thiab txhuam, thaum lub abrasiveness ntawm txhuam muaj zog heev thiab cov khoom ntawm lub nplhaib collector yog mos heev, cov kauj ruam coj sib npaug rau qhov dav ntawm txhuam feem ntau tshwm sim ntawm lub nplhaib collector. Tshwj xeeb tshaj yog rau tag nrho cov motors uas muaj qhov kub thiab txias thiab cov av noo tsawg, nws yog qhov yuav ua rau hnav ntau dhau ntawm cov txhuam hniav lossis cov nplhaib sib sau. Dab ntiab dab raug tsim ua li no. Tsuas muaj cov nti me me heev thaum pib, thiab cov txhuam hniav muaj cov khoom tsis zoo tam sim no nyob rau hauv cov khoom no thiab cov sparks yog generated. Thaum lub txim raug tsim, lub caws pliav yuav maj mam deteriorate thiab nthuav dav, thiab thaum kawg ib qho caws pliav nrog tib qhov loj li qhov zawv zawg kov ntawm txhuam yog tsim. Yog li ntawd, txawm tias cov txhuam hniav rau cov ntiv tes xoo ua rau muaj qhov me me heev, yuav tsum tau saib xyuas. Txhawm rau tiv thaiv cov cim dab phem ntawm cov hlau sau cov nplhaib, cov txhuam hniav yuav tsum tau nqa thaum lub cev muaj zog nres ntev.
Txhawm rau txhim kho qhov kev faib tawm tam sim no ntawm cov txhuam hniav sib luag, lub zog taw tes ntawm zawv zawg sib cuag ntawm lub nplhaib ntiv nplhaib tuaj yeem txav tau. Txhawm rau kom tau txais cov yam ntxwv zoo zawv zawg, nws yog qhov tsim nyog los tsim lub helical chute ntawm lub nplhaib plam.