Ib qho dav dav - lub hom phiaj relay yog ib qho tseem ceeb tswj cov khoom siv dav siv hauv kev tswj hluav taws xob. Nws tswj kev qhib thiab kaw ntawm circuits lossis keyboards raws li cov kev hloov pauv hauv cov khoom hluav taws xob hluav taws xob (xws li qhov hluav taws xob thiab tam sim no) lossis tsis yog - cov teeb liab hluav taws xob (xws li kub thiab siab), ua tiav kev tswj tsis siv neeg thiab kev tiv thaiv kev ua haujlwm.
Los ntawm txoj kev xav ua haujlwm, dav dav - lub hom phiaj relays feem ntau ua haujlwm raws li lub hauv paus ntsiab lus ntawm electromagnetic induction. Thaum lub kauj yog energized, ib tug electromagnetic quab yuam attracts armature, ua rau cov neeg raug kaw los yog qhib. Rau cov khoom siv hluav taws xob dav dav- lub hom phiaj relays, rub- nyob rau hauv lub sij hawm feem ntau yog li ntawm kaum mus rau pua pua milliseconds, thiab lub sij hawm tso tawm yog roughly zoo sib xws, tab sis cov nqi tshwj xeeb yuav txawv nyob ntawm tus relay specifications thiab qauv.
General -Cov hom phiaj relays muaj ntau hom kev sib cuag, suav nrog cov neeg uas ib txwm qhib, cov neeg raug kaw ib txwm muaj, thiab kev hloov pauv kev sib cuag. Nquag qhib kev sib cuag yog qhib thaum lub relay tsis qhib thiab kaw tom qab ua kom tiav; ib txwm kaw cov neeg raug kaw thaum lub relay tsis qhib thiab qhib tom qab ua kom tiav; kev hloov pauv kev sib txuas ua ke ua haujlwm ntawm ob qho tib si, ua rau kev hloov pauv hauv Circuit Court. Hauv kev siv cov tswv yim, hom kev sib cuag uas tsim nyog tuaj yeem raug xaiv raws li kev tswj hwm. Lub coil kuj ntawm ib tug dav - lub hom phiaj relay yog ib qho tseem ceeb parameter, cuam tshuam nws lub hwj chim noj thiab rhiab heev. Lub coil tsis kam ntawm ib qho me me dav dav- lub hom phiaj relay nyob ntawm ntau pua ohms mus rau ntau txhiab ohms, thaum lub coil tsis kam ntawm ntau dua - lub zog relay kuj qis dua. Qhov no yog los xyuas kom meej tias tam sim no muaj peev xwm dhau los ua kom muaj zog electromagnetic xav tau. Kev hloov pauv ib puag ncig ntawm qhov dav dav - lub hom phiaj relay kuj tseem ceeb heev; nws yuav tsum muaj peev xwm ua haujlwm ib txwm nyob hauv qee qhov chaw ib puag ncig, xws li kub, av noo, thiab qhov siab.
Piv txwv li, qee qhov dav dav - lub hom phiaj relays tuaj yeem ua haujlwm ruaj khov hauv qhov kub ntawm -25℃txog 70 degree, nrog cov av noo ntawm kwv yees li 95%, thiab tuaj yeem hloov mus rau qhov siab ntawm 2000 meters lossis siab dua. Muab faib los ntawm daim ntawv thov, cov hom phiaj dav dav tuaj yeem muab faib ua cov tswj relays thiab kev tiv thaiv relays. Control relays yog siv nyob rau hauv tsis siv neeg tswj systems siv logic tswj ntawm circuits; tiv thaiv relays yog siv los tiv thaiv cov khoom siv hluav taws xob los ntawm overcurrent, overvoltage, thiab undervoltage, tam sim ntawd txiav tawm Circuit Court thaum muaj xwm txheej txawv txav.
