day
se
chtu
m(lt h/c
dii;!n
tit
tlic dJ,lng
t~o
ra
moment
quay
lam
quay
rotor.

Trun,g linh hlnh
me
True
erril
than
Truec1Jt
tU'Sulor
Khi
ta
cung
cAp
ngu6n
di¢n
mQt
chi~u
cho

dQng co, dQng
co
se
lam
vi~c
theo
chi~u
quay
nao
d6
(chieu
quay
nay
phJ,l
thuQc
va~
huang
dong
di¢n
qua
ph<1n
U"ng
vai
ill
tn/ang
t;;tO
biJi ph§.n cam).
Hon
nua,
llfc

di~n
ill
F
tac
dQog
len
thanh
dAn
la:
->
->->
F
~
i.B
Do d6,
htiang
clla cac
vecto
F,
i
,B
hg-p
thanh
mQt
tam
di~n
thu~n,
v~y
mu6n
d6"i

chi~u
quay
clla
rotor
ta
phai
doi
huang
dong
di(!ll i
qua
phdn
Ung,
giu
nguyE!n
huang
clla
tU
tntang
B
t;;tO
boi
stator,
ho<\l.c
giu
nguyen
huang
dong
di~n
I

qua
phdn
U"ng
rna
d6"i
htid"ng
tU
trticmg B
t~o
biJi
stator.
Neu
127
d.
hai
d~i
iugng
i
va
D
cung
d6i
huang
mot
hic
thi
h!c F
vdn
giu
nguyen

chieu
quay
ban
dau.
Do
di;l.c
diem
nay,
nen
khi
ta
cung
cap
ngu6n
di$n
xoay
chieu
vao dOng
Cd
v~n
nang,
gici
sli
dOng cd cd
chieu
quay
ban
dfiu d
ban
ky

ducmg
ngu6n
di$n,
sang
den
ban
ky
am
dong
di$n
qua
dong
ca
deli
huang
l1gu<;lc
i<,Li
(so
vcri
ban
ky
duangl,
nhu
v~y
dong
di$n
qua
rotor
deli
huang,

d6ng
thai
dong
di$n
qua
day
quan
stator
cung
deli
huang
din
de'u
huang
tU t.ruong,
ke't
qua
ia
I~(c
di~n
tit
tac
dl,lllg
len
d.c
thanh
d§ n
a
ban
ky

am
cung
nhu
a
ban
ky
duang,
We
la
d(mg
Cd
dn
duy
trl
chieu
quay
ban
dau.
Val
cach
giai
t.hich
trcn,
ta
hii'iu duqc
Iy
do vi
sao
dQng
Cd

v;:m
Mmg
Hun vi$c
dlt<;1c
ca
ngubn
di$n
m(:lt
ehieu
va
ngu6n
di$n
xoay
ehieu.
ViQc
dieu
chinh
tfie do di>ng
ca
dVa vilo
nguyen
1y
giam
di$n
ap
bAng cuon sfi, thlt(1ng
quan
chung
voi
day

quan
phl:ln
cam.
3.
(jng
dlJ.ng
eua
d¢ng
eCl
v~n
nang
Cong
suat
cua d(mg
ca
v~n
nang
thuong
dudi
lkW,
do d6
dOng
ca
duac
ling
dl,lng
trong
cac
thie't
bi

gia
dl,lllg
nhu
may
hut
bl,li, IDay
xay
tnii
diy,
may
xay
thjt,
khoan
di$n,
lIlay
may

Ngoai
fa,
trong
cong
nghi$p
t.a
co
th~
U'ng
dl,lng d(:lng cd
V<'.lIl
nang
cho

d.c
thiet
bj
nhu
may
cua,
may
mai,
may
danh
bong,
lluiy dil da.
Trong
y
te'.
dong
ca
V<,Lll
nang
duc;1c
dung
trong
may
ly
tam
IIlaU
M clem
hbng
huyet
du,

lIlay
khoan
rang

!7.2-
MAy
KHOAN
mEN
co
mEu
cHiNH TOC DQ
Trong
sd
db
hinh
7.2,
triac
13
linh
ki$n
di$n
ttl
cong
suat
de
ngiit.
dong
hay
cfrp
dong

qua
tai
1.9.
d(:lng
Cd
V!,tIl
nang
trong
may
khoan
di$n.
128
Triac
dung
trong
ngu8n xoay
chi~u,
de
dAn
di$n
dUl1c
a
ca
hai
ban
ky
phai
dUI1C
kieh a
c,!C

G
thea
titng
ban
kY.
M
220V
IkO
VR
20kQ
Triac
4700
Hlnh
7.2:
M~ch
dieu chi.nh t6c
dO
dOng cd
khoan
di$n
Ty.
0,22~F
ke't
hl1P
di~n
tn1 1
kn
va
bie"o
trd

VR = 20
kn
t~o
thanh
m~ch
,n<:J,p
RC, de
t~o
thai
gian
tre
cho
xung
kich
c,!c G cua
triac.
Bien
trd
VR
c6
trj
so
nM,
ty.
n~p
nhanh,
xung
kich
som,
triac

diin
s6m
cho
dong
di$n
qua
dOng co
ldn,
dqng
co
quay
voi toc
dO
ca~.
Ng11I1C
l<:J,i,
bie'n
trd
VR c6
tri
56
lon, dOng
co
quay vdi toe d¢ thAp. Bie'n
tra
VR
dUl1c
thie't ke'
ohu
cai

co
sung,
neu
bOp
nhl?
thl
dOng
co
quay t6e dg thffp,
neu
bop
m<;inh
thl
dqng
cO"
quay t6c
dO
cao.
M~eh
dieu
khien
hlnh
7.2, con
dlfl1e
dung
de
thay
d6i
dong
di$n

cffp cho cae
lo~i
tai
khac
nhu:
dim
chieu
sang
lo;;U
co
tim:
cac
lo~i
di~n
tra
sinh
nhi~t
nhu
10
say,
10
nuong,
ban
ui,
qu~t
ban,
qu~t
tr§.n,
may
xay

sinh
to

M~eh
nay
con
dlfl1e
g9i
IS.
bi?
Dimmer.
129
§7.3·
~eH
DI~U
eHiNH
vA.
ON
D!NH
TOe
DO
DONG
eo
VM'
NANG
1)
Sd
d6
L
600V

0,1""1
220V
+
100
",'
1
39kO
D,
D,
68kn
G
12
kO
2
220
0
100
kO
Q,
3,3
kO
Htnh
7.6:
M~ch
di~u
chi'nh
va
6n
dinh
tac

dQ
dQng co
v~n
nAng
2)
Nguyen
ly
Khi
rna
di~n,
diad
D] nAn
ban
ky
dt1O'llg
ntilP
VRO
tl,l
lOOJ.1F.
Di~n
ap
n~p
dugc treD tl,l
co
trt
s6
tuy
thuQc
tn;mg
thai

dJin
m~nh
hay
ye'u
eua
transistor
Ql.
Bie'n
tra
lOOka
chinh
phan
eve cho QJ, QI
dan
di~n
cang
m~nh
thi
di$n
ap
130
T,
M
tren
t1,l,
cung
18.
di~n
ap
CE

clla QJ, c6
tT!
s6
dmg
tha'p,
va
ngU:Q'c
l~i.
Di~n
ap
tren
t1,l
lOOI-lF
cap
phan
ql'c
cho
cl,i'c
B clla
transistor
Q2.
Tu
do, suy
ra
V
E2
va
di~n
ap
sau

diad
D;j.
Di~n
ap
nay
dung
d~
kich
cho
triac
cOng
suilt
d€i
c§p
di~n
cho
dOng
cd
v~n
nAng.
Q2
Ia
lo~i
transistor
co
di~n
ap
V
CEO
cao

hdn
220V.
M~ch
nay
c6 tlic
d1,lng
6n
d!nh
t6c
dQ
dQng co dtja
tren
nguyen
ly sau:
•
Khi
dQng
Cd
quay
se
cho
ra
di$n
ap
cam
Ung diflt
vao
chan
T,
cua

triac.
N€u d{lng
Cd
bi
giam
toc
do
(co th€i
do
t.iii
tAng
U~n)
lam
VT!
gi.iim,
D3
se
dfrn
di~n
t~o
dong
kich
cho
triac.
Dong
di~n
qua
triac
ti'ing
len

se
lam
tAng toc
dO
d{lng Cd
len
nhU:
cu .
•
N€u
dQng cd
b~
tAng t6c di) (co
thg;
do
tai
giam
xuong)
lam
V
r1
tAng,
D:j
bi
phan
ctjc ngu:gc
se
ngung
din
va

triac
khong
dugc
kich
se
ngung
din,
giam
dbng
di~n
cilp
cho
di)ng
cd,
t6c
dO
dOng
~d
giam
xuong
nhU:
cu.
Nhu
vij.y,
toc d9 di)ng
Cd
dugc
giu
on
dinh

a
m9t
muc
trung
binh
tllY
thu9c
vi
trl
chinh
cua
bie'n
tra
100kO.
M'itch
nay
chi
c6
tac
dl,mg di£u
chinh
g6c
kich
a
mot
mia
ban
ky
ducmg (g6c
kich

ttl' 0° de'n 90°). d
ban
ky
am,
di~n
lip
dim
Ung
cua
di)ng cd d6i dilu
va
triac
se
luan
u tr'itng
thai
dan.
13\
TAl
LI~U
TIIAM KHAO
L
Linh
ki~n
di~u
khiEln -
Di¢n
rn¢t
chi~u
cong

nghi~p
Nguyen
Ta'n Phu:oc, NXB
Thanh
phil
H6
Chi
Minh
2002
2.
Di~n
tli
U"ng
dl:mg
trong
ding
nghi~p
-
T~p
1
Nguyen Ta'n
PhlfOC,
NXB
Thanh
pho
H6
Chi
Minh
2001
3.

SiYa
chua
thl,fc
hanh
Kg
thul)t
Di~n l~nh
Quang
Phuc,
NXB
Thong ke 2002
4.
Giao
trinh
Cung
dip
di~n
Ng6
Hang
Quang,
NXB
Giao
d~c
2002
132
mAo TRINH
SUA CHUA
THIET
m
DI~N

DI~N
TU
GIA DlJNG
Trang
Uri
noi
diiu

.
. 5
Chu'dng
1:
M~ch
di~n
chie'u
sang
1.1-
Cae
khai
ni~m
v~
chie'u
sang
1.2-
Cae
lo;;ti
den
chie'u
sang
1.3-

M~ch
clEm
di~u
khie'n mQt
noi,
nhj~u
noi
7
Chtidng
2:
Tinh
toan
ph\'.
tai
-
Tinh
ChQD
day
ddn

32
2.1-
C6ng
-
C6ng
stlift -
Di~n
nilng
2.2-
Tinh

toan
phl,l
tai
hQ
gia
dinh
-
Tinh
ch9ll
day
d§.n
2.3- Phl,lil,lC
v~
cap
dien
va
day
diln
2.4-
Thiet
b~
dong
ngiit
va
Ma
v~
Chtidng
3:
Cong
td

di';;n
mQt
pha,
ba
pha.
3.1~
C6u
t~o
cua
cong
to
di~n
3.2- Nguyen
Ii
lam
vi~c
3.3- Ky
hi~u
trEm
cong
to
di~n
3.4-
Ki~m
tra
va
hi~u
chroh
cong
to"

dii;!n
3.5-
each
mAc
cong
to
dii;!n
3.6- Do
di~n
nAng
cua
tai
ba
pha
133
51
Cht1dng
4:
May
nglit
bao
v~
ch~m
ddt
va
ch6ng
gii)t.
56
4.1-
BQ

biEi"n
dong
4.2- May ngAt
bao
v~
eh<;lm
da"t
va
ch6ng
gif).t
4.3- ELCB
dung
hi)
bie"n
dong
4.4-
ELCB
kh6ng
dung
biEi"n
dong
Cht1dng
5:
Thie't
bf
di~n
sinh
nhi~t
73
5.1-

Him iii
di~n
5.2- N6i
com
di~n
5.3- Nguyen
If
di@u
khi€n
va
on
dinh
nhi~t
5.4- La nUdng
5.5-
May
nude
nong
Cht1dng
6:
H~
th6ng
di~n
trong
tii
l~nh
6.1-
Khai
ni~m
co

ban
v@
nguyen
If
lam
l<;lnh
6.2- Nguyen
If
lam
l<;lnh
co
ban
6.3- Di)ng
cO
may
nen
6.4- Nguyen
1y
va
ehu
ky
lam
l<;lnh
6.5-
M<;lch
di~n
troRg
tu
l<;lnh
d6ng

tuye"t
6.6-
M<;lch
di~n
tii
l<;lnh
c6
di~n
tra
xii tuyiit
6.7-
M<;lch
di~n
clla tii
l<;lnh
2
cl'fa
6.8-
Cac
hu
hong
-
Cach
sl'fa
chua
97
Cht1dng
7:
DQng
cd

v~n
nang
-
May
khoon
di~n

125
7.1- DQng co
v<;ln
nAng
7.2-
May
khoan
di~n
c6
di@u
chinh
t6c
de>
7.3-
M<;lch
di@u
chinh
va
on
d~nh
t6c
dQ
dQng co

v~n
nAng
Tai
li~u
thorn
khao

. 132
MlJ.c IlJ.c
133
134
TV
sAcH
KY
THUkr
DI«N
-
DIf::N
Til
CVA
CUNG
TAc
GIA
~
GiAO
TRINH
}-)lLN TLr KY THL'AT
1)
-Linh
ki¢n

ll!¢n n'f
2) -M,H:h
di¢n
lit"
T~r
I
.1)
-M:,tch
di¢n
LU
-
T~r:2
4')
-M;,leh
di~n
tiI
-
T~p
3
5) -M
•.
1Ch
so'
-
lap
I.
:2
6) -M'lch
(ll'(lng
tlf

* GIAO TRI!'.'H
mi:N
TV
C()NG
NGHlr:p
I)
.
Linh
ki';n
dieu
khi6n
:::OJ
-
Ky
Lhu;!l
xlmg
(an
han
v~
n:1ngc:.lll
3)
-I-)i('n
ltt [/ng d\lllg [rong elmg
nghi~p-
T:1p
1
4) - F)i¢n
tu
ung
dung

trong c6ng
nghi~p-
np
2
5) -
Hi¢n
Iltc-5ng su5't
*
GrAo
TRli'iH f)ILN
CONG
NGHIi:1'
I)
-Di';nkYthll:1l
:n
-
Do
Ittl1ng
ui¢!l
va
kh6ng (li¢n
3) -
Khi
ql
di¢n
- Cain hie'n
4)
-Trang
bi lIit;'n
*

GIAO
nd~H
mf:N TV
nr
f)()NG
H(lA
1)
-
(fng
u\.lng
PLC
Siemens
vil
Modlerlrong
tlfd(mg
Ma
21
- Tu' d6ng
h(';J
n1i PLC
v:1
Inverter
dIU OmnHl
3)
-I.~r
trlnh
tlt
d(lJIg
hua
n'lj

PLC
57-lOU ella
Sicmcm
4) -
elm
hien
-
ling
d1,lIlg
lrllng do
ltt{'1ng
va di6u
khi6n
(loll
banlan
Ihl( x)
(Iai
han
l;in
1M
J)
(tai b:ln
1'1n
thl1
J)
(sip
xUal
han)
(s5:r
XII:1t

h:llli
Ida
xliit
hi"n)
(tji
ban
l;in
thl(4)
Ilji
ball Ian
thu,J)
(tal
h:ln Idn
thu
J)
(sdp
:>:.uffl
han)
(d~
xuffl
hCtn)
(~;:\r
J(ual
b:ll1)
har
J(Ll:1t
han)
(sdp
xual
biin)

(s;:\p
xu:'i't
ban)
(({li
ban
Idn
lh((
2)
(oa
xU:11
han)
(~ip
xuj't biin)
I"~P
xuat
hon)
5)
-Trang
bi di(!n
kh6ng
tier
difm-'Ibang
!njy
ning
nghi(!p
(sdr
xu5't
h5n)
'"
mAo

TRlNH
DA
Y
NGHf~
- HUCING
NGHlt;P
(kh6
1

t-J\20)
11"
Slb
l:hlra
Thiel
hi
lJien

Di?n
ti'r
gia
dung
(d.1
xui't hilll)
2)

Di¢n
va
Di¢n
til'
c~n

ban -
Ly
thuyet
va
lh\fe
hanh
(stip
XII.!t
hCtn)
J) - Ampli Tr.:tnsistor
va
Ie
-
Ly
thuyct va
th~re
h.lnh
(~.1p
xu:]'t h,\n)
41
-
Do
11({1ng
di~n
va
di';n
til'
- Sir
dung
va

,ira
l:hua
(~~
r
xu:}'t
b,in)
? -
'"
SUA CHUA
THIET
Bl
DIEN
-
DIEN
TV
GIA DUNG
" .
NGUYEN
TAN
PHudc
LE
VAN8ANG
Ch~u
trach
nhi~m
xuat
ban:
TS
QUACH
THU

NGUYJj:T
Bien
t~p:
YEN
THAD
Bia:
8ila
ban
in:
QuYNH
LAM
NHA XUAT
BAN
TRE
1618.
Li
Chlnh
Tlilng
-
Q~n
3 -
TP.
H6
Chi
Minh
DT:
9316289
-
9316211
-

6465596
-
9350973
,
Fax:
08.8437450
E-mail:

Website:

CHI NHANH
NHA
XUAT
BAN
TRE
T~I
HA NOI
So
20
ngo
91
Nguyen
Chf
Thanh -
Qu~n
£)ong
£)a
-
Ha
N¢i

ElT
: (04) 7734544
Fax:
(04) 7734544
E-mail:
In
2.000 cuon,
kh5
14x20cm,
t:;ti
Xi
nghi~p
in
Nguyen
Minh
Hoang. Dia
chi:
100 Le
D:;ti
Hanh,
P.?,
Q.ll,
TP.
HeM.
DT : 8555812.
E·mail:

86
dl1ng
ky

ke
ho:;tch xWlt
ban
1729/17-CXB do
C1,lC
Xutit
ban
cap
ngay
05 - 12 - 2003
va
gilly
trich
ngang
KHXB
so
16812004.
In
xong
va
nl)p hill
chiE'iu
thang
02 nAm 2004.
1
1l
l
l
l l
~

m
ll
llll
t
~
!
l~
!11
11