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Isishwankathelo sophuhliso kunye neempawu ze-vacuum circuit breaker
[Amagqabantshintshi ophuhliso kunye neempawu ze-vacuum circuit breaker]: i-vacuum circuit breaker ibhekiselele kwi-breaker circuit enokuthi abafowunelwa bavalwe kwaye bavulwe kwi-vacuum.Izaphuli zesekethe zevacuum zaqale zafundwa yi-United Kingdom kunye ne-United States, emva koko zaphuhliswa zaba yiJapan...Funda ngokugqithisileyo