Ob qho tib si DC Circuit Court breakers thiab ntawm -load kais hloov pauv xa mus rau cov kev tswj hwm qhov hluav taws xob ntawm kev hloov pauv kais hloov pauv. Qhov txawv yog qhov tseeb tias off-load kais hloov pauv tsis muaj peev xwm hloov cov kais dej hauv qab thauj khoom. Qhov no yog vim hais tias thaum lub sij hawm kais switching, muaj ib tug luv luv disconnection txheej txheem. Disconnecting lub load tam sim no yuav ua rau arcing ntawm cov neeg, hlawv tawm lub kais changer los yog ua rau ib tug luv luv Circuit Court. Yog li ntawd, lub transformer yuav tsum de-energized thaum hloov kais.
Yog li ntawd, lawv feem ntau yog siv rau transformers nrog tsawg zog voltage yuav tsum tau thiab tsis yuav tsum tau nquag kais hloov. Ntawm -load kais hloov pauv, ntawm qhov tod tes, tuaj yeem hloov cov kais dej hauv qab thauj khoom. Vim tias tsis muaj kev cuam tshuam luv luv thaum lub sijhawm hloov pauv, qhov hloov pauv ntawm ib tus kais mus rau lwm qhov ntawm kev hloov pauv hloov, yog li zam cov txheej txheem arcing tshwm sim los ntawm kev cuam tshuam cov khoom tam sim no. Lawv feem ntau yog siv rau transformers nrog nruj voltage yuav tsum tau nquag hloov kais.
