Nkag siab Rated Current thiab Rated Voltage
Ua ntej, peb yuav tsum tau txais cov ntaub ntawv ntsuas tam sim no thiab ntsuas hluav taws xob los ntawm AC contactor cov lus qhia tshwj xeeb lossis cov khoom lag luam. Ob qhov kev txwv no yog lub hauv paus rau kev suav cov contactor lub peev xwm thauj khoom.
Xav txog Power Factor
Thaum xam lub peev xwm load ntawm AC contactor, peb kuj yuav tsum tau ua kom paub lub tswv yim ntawm lub hwj chim. Lub zog tseem ceeb yog qhov sib piv ntawm lub zog ua haujlwm rau lub zog pom tseeb, qhia txog kev ua haujlwm ntawm cov khoom siv hluav taws xob. Rau AC contactors, lub hwj chim feem ntau yog ze rau 1, tab sis nws yuav txawv ntawm cov tswv yim siv. Yog li ntawd, txhawm rau kom tau txais cov txiaj ntsig tau raug suav ntau dua, peb yuav tsum txiav txim siab tus nqi ntawm lub zog hluav taws xob raws li qhov xwm txheej tiag tiag.
Kev suav siv cov qauv
Nrog rau peb qhov kev ntsuas tam sim no, ntsuas qhov ntsuas hluav taws xob, thiab lub zog hluav taws xob, peb tuaj yeem siv tus qauv P=UIcosφ los xam cov peev txheej ntawm AC contactor. Qhov twg P sawv cev rau lub hwj chim (unit: watts), U sawv cev voltage (unit: volts), Kuv sawv cev tam sim no (unit: amperes), thiab cosφ sawv cev rau lub hwj chim.
Piv txwv li, AC contactor nrog qhov ntsuas tam sim no ntawm 10A thiab qhov ntsuas hluav taws xob ntawm 220V, thiab lub zog ntawm 0.8, muaj peev xwm thauj khoom ntawm 1.76 kW (ie, 10A * 220V * 0.8=1760W). Qhov no txhais tau hais tias tus contactor tuaj yeem ruaj ntseg tswj cov khoom siv hluav taws xob nrog lub zog tsis tshaj 1.76 kW.
Kev ceev faj: Thaum xam lub peev xwm thauj khoom ntawm AC contactor, peb yuav tsum tau xyuam xim rau cov ntsiab lus hauv qab no:
1. Xyuas kom meej tias qhov tsis xws li tam sim no, qhov hluav taws xob, thiab lub zog siv hluav taws xob yog qhov tseeb;
2. Hauv kev siv tswv yim, lub peev xwm thauj khoom ntawm AC contactor tuaj yeem cuam tshuam los ntawm cov yam ntxwv xws li ambient kub thiab av noo, yog li cov khoom no yuav tsum tau txiav txim siab thaum xaiv cov qauv;
3. Txhawm rau kom muaj kev nyab xeeb thiab ruaj khov ntawm cov hluav taws xob, nws raug nquahu kom tawm ntawm qee qhov npoo thaum xaiv AC contactor.
