DC me me Circuit Court breaker (MCB) yog dab tsi?
Cov haujlwm ntawm DC MCB thiab AC MCB yog tib yam.Lawv ob leeg tiv thaiv cov khoom siv hluav taws xob thiab lwm yam khoom siv thauj khoom los ntawm overloading thiab short-circuit teeb meem, thiab tiv thaiv Circuit Court kev nyab xeeb.tab sis qhov kev siv scenarios ntawm AC MCB thiab DC MCB txawv.Nws feem ntau nyob ntawm seb qhov hluav taws xob siv yog hloov cov xeev tam sim no lossis cov xeev ncaj qha tam sim no.Feem ntau ntawm DC MCB siv qee qhov ncaj qha tam sim no xws li lub zog tshiab, hnub ci PV, thiab lwm yam. Qhov voltage ntawm DC MCB feem ntau yog los ntawm DC 12V-1000V.
Qhov sib txawv ntawm AC MCB thiab DC MCB los ntawm tsuas yog lub cev tsis muaj zog, AC MCB muaj cov ntawv cim ntawm cov terminals li LOAD thiab LINE terminals whereas DC MCB yuav muaj qhov zoo (+) lossis tsis zoo (-) kos npe rau ntawm nws lub davhlau ya nyob twg.
Yuav ua li cas txuas DC MCB kom raug?
Vim tias DC MCB muaj qhov cim ntawm '+' thiab '-' cim nkaus xwb, nws feem ntau yooj yim rau kev sib txuas tsis raug.Yog hais tias DC me me Circuit Court breaker txuas los yog xaim tsis raug, yuav muaj teeb meem tshwm sim.Nyob rau hauv cov ntaub ntawv ntawm overload los yog luv luv Circuit Court, lub MCB yuav tsis muaj peev xwm txiav tam sim no thiab tso tawm lub arc, qhov no yuav ua rau lub breaker burner tawm.
Yog li ntawd, DC MCB muaj cov cim ntawm '+' thiab '-' cov cim, tseem yuav tsum tau kos lub voj voog kev taw qhia thiab cov kab kos, raws li qhia hauv qab no:
2 P 550VDC
4P 1000VDC
Raws li daim duab kos, 2P DC MCB muaj ob txoj kev xaim, ib qho yog sab saum toj txuas nrog cov ncej zoo thiab tsis zoo, lwm txoj hauv qab yog txuas nrog cov ncej zoo thiab tsis zoo raws li cov cim ntawm '+' thiab '- '.Rau 4P 1000V DC MCB muaj Peb txoj kev xaim, raws li kev siv sib txawv, xaiv cov kab hluav taws xob sib txuas los txuas cov xaim.
Puas yog AC MCB siv rau DC lub xeev?
Lub teeb liab AC tam sim no txuas ntxiv hloov nws tus nqi rau txhua thib ob.Lub teeb liab AC voltage hloov ntawm qhov zoo mus rau qhov tsis zoo hauv txhua ob ntawm ib feeb.MCB arc yuav raug tua ntawm 0 Volts, cov xaim yuav raug tiv thaiv los ntawm qhov tam sim no loj.Tab sis lub teeb liab DC tsis hloov pauv, nws ntws hauv lub xeev tas li thiab tus nqi rau qhov hluav taws xob tsuas yog hloov pauv thaum lub voj voog mus ncig OFF lossis lub Circuit Court poob qis los ntawm qee tus nqi.Txwv tsis pub, DC Circuit Court yuav muab tus nqi tas li ntawm qhov hluav taws xob rau txhua thib ob ntawm ib feeb.Yog li, raws li tsis muaj 0 Volt point hauv DC lub xeev, nws tsis qhia tias AC MCB siv rau DC xeev.
Post lub sij hawm: Lub Xya hli ntuj-30-2021