Vacuum interrupter (VI) maka Ọkara-voltaji (MV) Vacuum circuit-breaker (VCB) tumadi eji maka substation na ike grid akụrụngwa na ike sector.This usoro nke agụụ interruper ịmụta seramiiki mkpuchi mkpuchi,Cu-Cr kọntaktị.O nwere. na atụmatụ nke nnukwu ịmafe ikike, elu insulating etoju, ike arc-quenching ike na ogologo ndụ, etc.Vacuum circuit breaker dakọtara na ya nwere uru nke mfe mmezi, ọ dịghị ihe ize ndụ nke mgbawa, dịghị mmetọ na ala mkpọtụ, wdg, na enwere ike iji ya mee ihe n'ọtụtụ ebe na ike eletriki, igwe, igwe igwe, kemịkalụ na ngalaba m, wdg, ijikwa ma chebe usoro nnyefe na nkesa.