TRUONG D A I HOC SU' PHAM K Y TH U A T
TH AN H PHO HO CHI M IN H
KHOA CO K ill MAY
BO MON CONG NGHE CUE TAO MAY
BE THI CUOI K Y H K 2 -N A M HOC 2019-2020
Mon: TRANG BI B BT TRONG MCN
Ma mon hoc: EEEI321925
B€ s6/Ma de: 01/20 - B e thi co 02 trang
Thai gian: 60 phut
KHONG duoc phep sir dung tai lieu
Cau 1: (3,0 diem)
• Cho so do dien mach nhu hinh ben dirai. Hay thuc hien:
a) Cho biet chuc nang cua mach dien da cho.
b) Hay cho bi§t so do dien da cho co hoan chinh khong? Neu khong hay hoan
chinh lai so do mach dien (ve so• do mach m&i v&i cdc sua doi va ve them
cac khi cu dien phu hap vao giay thi).
c) Trinh bay nguyen ly hoat dong cua mach dien tren theo mach dien da ve sira
lai.
Cau 2: (3,5 di6m)
• Cho he th6ng diSu khien gom hai dong co khong dong bo ba pha (380V/50Hz).
Dong co M l khdi dong true tiep, dong ca M2 khoi dong gian tiep bang phuong
phap d6i noi sao - tarn giac. Hay thiet ke mach dong lire va mach dieu khien
theo yeu cau sau:
a) Nhan nut SI, dong co Ml va M2 bat dau hoat dong. Thai gian de dong co
M2 chuyen tir che do sao sang tarn giac la 5s.
b) Nhan nut SO de dung hoat dong cac dong co theo chu trinh sau: dong co Ml
dung hoat dong truac, sau thdi gian 10s dong co M2 dung hoat dong.
Cau 3: (3,5 diem)
• Lap trinh PLC (ngon ngu LD) de dieu khien hai dong ca khong dong bo ba pha
(380V/50Hz) theo cac yeu cau nhu a cau 2. Hay thuc hien cac noi dung sau:
+ Lap bang cap phat dia chi (Symbol Table)-,
+ So do dau noi PLC;
+ Chuang trinh dieu khien (dang LD).
Ghi chu: Can bo coi thi khong duac giai thich de thi.
S6 hieu: BM1/QT-PDBCL-RBTV Trang: 1/2
