Incazelo emfushane:

I-HM4 medium-voltage circuit breaker isebenzisa igesi ye-sulphur hexafluoride (SF6) njenge-arc-extinguishing and insulating medium. Igesi ye-SF6 inezici zokuphuka okushelelayo, futhi lapho iphuka igesi kuyo, ayikho into yamanje yokusika futhi akukho ukugcwala kwe-overvoltage okukhiqizwayo. Lesi sici esihle kakhulu siqinisekisa ukuthi i-circuit breaker inempilo ende kagesi. Ngaphezu kwalokho, ngesikhathi sokusebenza, alinawo umthelela ekushaqekeni kwemishini, izinga le-dielectric, kanye nengcindezi yokushisa. Ikholomu yesigxobo se-circuit breaker, okungukuthi, ingxenye yegumbi lokucisha i-arc, iyisistimu evaliwe yokugcinwa kwamahhala yokuphila. Ukuphila kwayo kokubekwa uphawu kuhambisana namazinga e-IEC 62271-100 kanye ne-CEI17-1.