Vacuum interrupter(VI) ya Medium-voltage(MV) Vacuum circuit-breaker(VCB) yomwe imagwiritsidwa ntchito kwambiri popangira ma gridi yamagetsi ndi gawo lamagetsi pagawo lamagetsi. mawonekedwe a kusintha kwakukulu, milingo yotchinga kwambiri, mphamvu zoziziritsira arc komanso moyo wautali, etc. Vacuum circuit breaker yofananira nayo ili ndi zabwino zake pakukonza kosavuta, palibe chiwopsezo cha kuphulika, kusaipitsidwa ndi phokoso lochepa, etc., ndi itha kugwiritsidwa ntchito kwambiri mu dipatimenti yamagetsi, makina, metallurgical, mankhwala ndi mgodi, etc., kuwongolera ndi kuteteza njira yotumizira ndi kugawa.
