1. CÊu t¹o ®éng c¬ kh«ng ®ång bé ba pha
®
!"
"#$!%&'(
a.Xtato)*+,
(#- !%&'("./012
3%&45#!"6
7 8#9:
8./012
4/012;-(./012
8!(1<=>
>
b.R«to)*01(,
?
=#1@!A!"B(C#DEF
G
H
G
G
I
G
H
G
G
I
p
f60
n
1
=
2
π
π
G
H
1
G
G
I
>
JKLJKL JKL
JMC01(B(7N#NOPQ##R
f J*SM.T#
p UMV7B(7N#01(
)SMcặp cực,
n
1
ITNO#W!"MC-#C
E*SMB(.T#XYZ>[\
UMVp
JMC-#Cn
1
)T#K],
1 3.000
2
3
4
1.500
1.000
750
JMC01(nB( (#^#DMC01( n
1
B(7N#
UV _ ND# M B( M ` 7 N# NO ' a
Q#SMNOs
n!"MC01(B(
®èi víi ®éng c¬s = > >=÷> >b
%100
1
1
n
nn
s
−
=
Bµi tËp:cCC#DE® ((!-#S99SM8V
7Q#L !"`.T#'(d1((9*SM
Q#Z>[\[MC01(B(C#DQ#(@1e
fSMNOSB(C#DQ#> >L
Bµi gi¶i
- JMC01(B(7N#
( )
T#K]1000
3
50.60
p
f60
n
1
===
-JMC01(B(C#D^#Q#MC01(
B(
( ) ( ) ( )
T#K]97003,01.10001.nn
s
1
=−=−=