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BI 1. APTOMAT T? ?NG PHNG N? A#B-2A; DW-80/200/3501.1. M?c tiu: Gip sinh vin n?m b?t du?c:- Khi ni?m, cng d?ng, c?u t?o, nguyn lm vi?c c?aaptomat t? d?ngphng n? AOB-2A; DW-80/200/350;- Tho, l?p, b?o du?ng, d?u n?i dng qui trnh k? thu?t, qui ph?m an ton- Pht hi?n v x? l du?c cc s? c? thng thu?ng.1.2. Co s? l thuy?tHi?n nay aptomat t? d?ng phng n? du?c s? d?ng r?ng ri t?i cc m? h?m l nhu: AOB-2A do Lin x cu s?n xu?t; DW-80/200/350 do Trung Qu?c s?n xu?t, nhung DW du?c dng nhi?u thay th? cho cc AOB tru?c dy.V? ch?c nang, c?u t?o v qui trnh s? d?ng, v?n hnh c?a 2 lo?i AOB, DW tuong t? nhu nhau.1.2.1 Khi ni?mAptomat l thi?t b? lm vi?c d?a trn nguyn l c?a c?u dao v c th? th?c hi?n thm cc ch? nhu: b?o v? qu t?i, ng?n m?ch, s?t p... ty theo vi?c m?c thm cc thi?t b? di km.Aptomat thu?ng du?c l?p d?t ngay pha sau my bi?n p, tru?c cc du?ng dy, cp d?n di?n cung c?p cho cc ph? t?i. Vi?c phn lo?i aptomat d?a vo cc y?u t? sau:Theo k?t c?u c 3 lo?i: lo?i m?t c?c, hai c?c, ba c?c.Theo th?i gian tc d?ng c 2 lo?i: lo?i tc d?ng khng t?c th?i v lo?i t?c th?i.1.2.2 Cng d?ng, ph?m vi s? d?ngAptomat t? d?ng phng n? dng d? dng, c?t di?n v b?o v?