masana'antar busar katakobusasshen kayan kwastomomi

Tashar tasirin lantarki Don tsarin 31.5kA / 4S, ƙaramin yanki-yanki na ƙasa mai shinge jan ƙarfe shine: S = 330 × 86.7% = 287mm2 Lissafi bisa ga tsarin da aka ambata, wanda ya dace da nau'ikan da aka kimanta a takaitaccen ɗan gajeren lokaci, daidai ga yawancin lokuta da aka saba amfani da su na ɗan gajeren lokaci tare da kayan aiki, ƙaramin giciye na busba da ƙaramin ƙayyadaddun basali na tagulla. da kuma busar aluminika da aka yi amfani da su ana nuna su a cikin Table 1: Tebur 1 Busbar kA / 4s 25 31.5 40 63 80 Musammantawa na tagulla a cikin kayan aiki 50 × 6 60 × 6 80 × 6 ko 60 × 8 80 × 10 100 × 10 Musammantawa na tagulla jan karfe 50 × 5 50 × 6 50 × 8 80 × 8 80 × 10 Musammantawa na allon aluminum a cikin kayan aiki 80 × 6 ko 60 × 8 80 × 8 100 × 8 ko 80 × 10 Bas ɗin ƙarfe a cikin kayan aiki Imumaramar giciye (mm2) 260 330 420 660 840 Allonum bas ɗin aluminium a cikin kayan aiki Imumaramar giciye (mm2) 425 540 685 1075 1365 4.2 Tasirin abubuwan lantarki Motar

bas mai hawa ce wacce take daukar ta yanzu. Lokacin da tsari na gudana ke gudana, ba makawa zai samar da ƙarfi a kan mashin. Forcearfin da bas ɗin ke motsawa a halin yanzu yana da alaƙa da yanzu, da siffar motar bas, da nisan da ke tsakanin motocin. Busbars da aka sanya a layi daya sune

suka fi yawa a Switgear. Eterayyade matsakaicin matsakaicin busbar (matsakaicin matsakaici tsakanin goyon bayan biyu) gwargwadon gwargwadon girman lambar da yake fuskanta Manufa: Matsalar matsananciyar aiki a kan busar dusar

/ cm ≤ abin da ake yarda da laƙabin bas ɗin. Magana: js = 1.76L2ich2 × 10-3 / aW≤y A cikin dabara: js - nuna damuwa akan bas, kg / cm2; Y-An yarda da matsanancin wahalar bargon bas, 1400 lokacin da motar bas ta zama jan ƙarfe, da 700 lokacin da motar bas ta zama aluminium; Nisa-tallafi tsakanin Layi tsakanin basbars (cm); A — nesa tsakanin juna (cm); W —— Wurin murabba'i mai sigar rarrabuwa mashin kanti, cm3; Ich-wanda aka fi sani da farko, (KA) Dangane da wannan tsari da ke sama: Matsakaicin matsakaiciyar motar tagulla itace L copper MAX≤ (1400aw 103 / 1.76 ich2) 1/2 = 892 (aw) 1/2 / ich Matsakaicin matsakaicin shingen allon aluminum shine Luminan MAX≤ (700aw 103 / 1.76 ich2) 1/2 = 631 (aw) 1/2 / ich Matsalar sashe na basur rectangular: Gama bas ɗin da aka tsara a sarari sau uku, lokacin da aka saita motar bas a kwance; ko don bus ɗin da aka shirya sau uku a tsaye, lokacin da aka sanya bas ɗin a madaidaiciya: (Wato, girman madaidaicin bas ɗin ya kasance akasin haka, tasirin ƙarfi yana da kyau a wannan lokacin) W1 = 0.167bh2; inda h ke da nisan bas (cm) kuma b shine kauri bus (cm). Maye gurbin W a cikin tsari mai zuwa don samun L jan karfe MAX≤365h （ab) 1/2 / ich Luminium MAX≤258h （ab) 1/2 / ich Misali: don tsarin 31.5kA, ich yana ɗaukar 80kA, kamar don KYN28-12 Switgear a = 28, don matsakaicin iyakar TMY100 × 10 da LMY100 × 10 basbars. Yankin busar yakai 100/10 = 10cm, sannan kauri shine 10/10 = 1cm. L jan karfe MAX≤240 (cm). Luminumiya MAX≤170 （cm） Ga motar bas-hawa layi sau uku, lokacin da aka sanya bas daidai; ko don bus ɗin da aka shirya sau uku a tsaye, lokacin da aka sa bas ɗin leɓe: (Wato, faɗi nisa daga cikin bas ɗin akasin haka ne, tasirin lantarki ba shi da kyau a wannan lokacin) W2 = 0.167b2h; Sannan: L jan karfe MAX≤365b （ah) 1/2 / ich Luminium MAX≤258b （ah) 1/2 / ich