peev xwm loj thiab siab tsis vim ceev loj hlob nyob noj lub neej niaj hnub, noj uas si tsis hais agricultural thiab muaj, uas muaj voltage muaj peev xwm loj zog sob, yuav tsum tau-voltage tau hluav taws xob thiab ntau yam tsis loj. Tam sim no nyob tam sim no los ntawm 1000A lub ntsiab fais fab kis thiab tis khoom rau 2500A los 4000A, tam sim no luv Circuit Court si ntawm 16 ~ 20kA los 31.5 ~ 50kA, los yog ntau tshaj. 550kV tej fais fab Circuit Court tib tus ncej tag puas tau raug txo los ntawm 4 rau 2, so xwb no. Yog ib tug quab yuam lub ntsiab ntawm lub teb chaws Suav fais fab kis thiab tis voltage tsis tau ceev nrooj nce ces hwj huam rau voltage muaj peev xwm loj thiab tsis muaj kev thov sib yuav tsis txias (dua voltage kis rau account lub subordinate tis voltage nplhaib network txo lub hwj huam network short-circuit tam sim no).
electro-txhua yam xws li (kees) vim txoj kev siv tshuab computer thiab sensor thiab automation zoo, ceev dua kom rau siab voltage apparatus txawj ntse muaj nuj nqi. Khoom fais thiab txawm pom xob tshuab tshiab tam sim no kuj ho nthuav-voltage zog hluav taws xob, network automation, chaw taws teeb control, hauv internet no los soj ntsuam qhia rau cov neeg mob zoo. Loj loj, hnyav, ntseg tib electromagnetic relay cuab yeej siv kev tiv thaiv, hluav taws xob instrumentation thiab tswj li yuav tau hloov los ntawm multifunction cov tshuab computer, sensors.