Nkọwa Dị Mkpirikpi:

Usoro Zw7-40.5 nke usoro ihe mkpuchi oghere voltaji dị elu n'èzí bụ AC 50Hz nke nwere usoro atọ. Ngwaọrụ mgbanwe voltaji dị elu n'èzí nwere voltaji a tụrụ aro nke 40.5Kv. E ji usoro ọrụ mmiri ma ọ bụ usoro ọrụ electromagnetic rụọ ọrụ, ọ nwere ike ijikwa nkewa na mmechi eletrik n'ebe dị anya, enwere ike ịchekwa ike n'aka, kewaa ya na imechi ya. Arụmọrụ imewe ahụ na-emezu ihe achọrọ nke ọkọlọtọ mba GB1984 "AC high voltaji circuit breaker", ma na-emezu ihe achọrọ nke ọkọlọtọ IEC62271:100 "High voltaji AC circuit breaker" International Electrotechnical Commission. A na-ejikarị ZW7-40.5 vacuum circuit breaker eme ihe maka njikwa na nchekwa nke sistemụ nnyefe ike na mgbanwe 35KV n'èzí, ọ dịkwa mma maka ọrụ nkịtị na nchekwa sekit dị mkpirikpi nke netwọk nkesa ike obodo na ime obodo na ụlọ ọrụ mmepụta ihe na ụlọ ọrụ na-egwupụta ihe. Nhazi zuru oke nke ngwaahịa ahụ bụ ụdị ogidi porcelain; Karama porcelain dị elu nwere ụlọ mkpochapu vacuum, karama porcelain dị ala bụ karama porcelain ogidi. Dabara adaba maka ọrụ ugboro ugboro. O nwere njirimara nke ezigbo akara, mgbochi ịka nká, nrụgide dị elu, enweghị ọkụ, enweghị mgbawa, ndụ ọrụ ogologo oge, ntinye na mmezi dị mfe.