I-Arc Chamber ye-Low-Voltage Circuit Breakers

Igumbi le-arc lezaphuli zesekethe ezine-voltage ephantsi, ezobuchwephesha obubandakanya: iipleyiti zetsimbi ezimile okwe-U;Indawo ebiyelweyo eyenziwe ngezinto ezigqumayo ezimile okweparallelelepiped kwaye iqulathe iindonga ezisecaleni ezimbini, udonga olusezantsi, udonga olungaphezulu kunye nodonga olungasemva, iindonga ezisecaleni zineendawo zokubeka ezininzi ezichaseneyo ezichaseneyo zokufakelwa kwesinyithi. iipleyiti, iindonga ezisezantsi nezingaphezulu, iplati nganye inomngxunya omnye ubuncinane kwaye indawo ebiyelweyo ivuliwe ngaphambili.

Kuyaziwa ukuba i-mold case power breakers idla ngokusetyenziswa kwiinkqubo zombane ezinevoltage ephantsi, oko kukuthi, iisistim ezisebenza ukuya kuthi ga kwi-1000 Volt.Izaphuli zesekethe ezixeliweyo zihlala zibonelelwa ngenkqubo eqinisekisa umsinga okhoyo ofunekayo kubasebenzisi abohlukeneyo, uqhagamshelo kunye nokuqhawulwa komthwalo, ukukhuselwa kuzo naziphi na iimeko ezingaqhelekanga, ezinjengokulayisha kakhulu kunye nesekhethi emfutshane, ngokuvula ngokuzenzekelayo isekethe, kunye ukuqhawulwa kwesekethe ekhuselweyo ngokuvula abafowunelwa abahambahambayo ngokubhekiselele kuqhagamshelwano olusisigxina (ukwahlukana kwegalvanic) ukuze kuphunyezwe ukuhlukaniswa okupheleleyo komthwalo ngokubhekiselele kumthombo wamandla ombane.

Umsebenzi obalulekileyo wokuphazamisa i-current (ingaba i-nominal, i-overload okanye i-short-circuit current) inikezelwa ngumqhekezi wesiphaluka kwisahlulo esithile esixeliweyo se-circuit breaker eyenziwa yinto ebizwa ngokuba yi-deionizing arc chamber.Njengomphumo wentshukumo yokuvula, i-voltage phakathi koqhagamshelwano ibangela ukukhutshwa kwe-dielectric emoyeni, okukhokelela ekubunjweni kwe-arc yombane kwigumbi.I-arc iqhutywe yi-electromagnetic kunye ne-fluid-dynamics effects ngaphakathi koluhlu lweepleyiti zetsimbi ezilungiselelwe kwigumbi, ezijoliswe ukucima i-arc ethethiweyo ngokupholisa.Ngexesha lokwenziwa kwe-arc, amandla akhutshwe yi-Joule effect aphezulu kakhulu kwaye abangela uxinzelelo lwe-thermal kunye noomatshini ngaphakathi kwendawo yokuqulatha ipleyiti.