IINTLOBO ZEZITSHINTSHI ZOKUQHUBA UMTHWALO

Iswitshi yomthwalo ene-high-voltage isetyenziselwa ukwaphula i-load current (kuquka i-regular overload current) esebenzayo, kwaye inamandla athile okulungisa i-photosynthesis short-circuit current kunye nozinzo lobushushu. Ihlala isetyenziswa kunye neefusi kwinkqubo yamandla. Iswitshi yomthwalo isetyenziselwa ulawulo kunye nokukhusela i-overload, kwaye i-fuse isetyenziselwa ukukhusela i-short-circuit.
Ngenxa yokuba iswitshi yomthwalo ifuna kuphela ukwaphula umsinga womthwalo omncinci, izixhobo zayo zokucima i-arc zilula kakhulu kunezo ze-circuit breaker. Ngokomgaqo wokucima i-arc kunye neendlela ezahlukeneyo zokusasaza, iiswitshi zomthwalo zinokwahlulwa zibe ziindidi ezilandelayo:
1. Sebenzisa amandla e-arc ukwenza izinto zokuvelisa igesi eqinileyo zivelise igesi, kwaye uvuthele i-arc ukuze imise iswitshi yomthwalo wokuvelisa igesi eqinileyo.
2. Iswitshi yomthwalo womoya ocinezelweyo esebenzisa umoya woxinzelelo lwepiston ukuvelisa isiphumo sokuvuthela umoya ukwenza i-arc imise, igesi inokuba yigesi yomoya okanye i-sulfur hexafluoride.
3. Iswitshi yomthwalo efakwe kwioyile yiswitshi yomthwalo efakwe kwioyile esebenzisa amandla e-arc kwioyile ukwenza ioyile iphele kwaye ibole ukuze ivelise igesi, ukuze i-arc iphole kwaye imiswe.
4. Iswitshi yomthwalo we-vacuum exhoma i-arc kwi-vacuum ifana ngesakhiwo ne-vacuum circuit breaker, kodwa izinto zoqhagamshelwano zahlukile.
5. Iswitshi yomthwalo we-sulphur hexafluoride ecima i-arc kwigesi ye-sulfur hexafluoride.