Download - Bai Tap Ki Thuat Do Luong Dien
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
1/33
O LNG IN BI TP
CHNG I: O IN P V DNG IN
1.1 Mt ampe-k dng c cu o t in c in tr
c cu o R(m !""# $% d&ng '%m 'c t)i a *ma+! ,1m. /in tr 0unt R0 ! 1#. 2n d&ng int3ng cng i 4ua ampe-k trong c5c tr67ng 8p9
a kim 'c t)i a: ,;?< ! *ma+ @u'' 0ca'e de$iationc ,A;
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
2/33
O LNG IN BI TP
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
3/33
O LNG IN BI TP
Cm! *mRm ! 1,,.1 ! 1,,mC
*t ! *0E *m !D *0! *tO*m! 1,,m O 1,,H !
""m
R0 ! == ,,1-1"-""1,,
m'
m#
I"
#m
: t,m - 1')Cm ! *mRm ! 1,,mC
*0! *tO *m ! 1- 1,,H! """"m
R0! == 1,,,1-,"-"""1,,
m'
m#
I"
#m
1.P Mt c cu o t in c :a in tr 0unt68c mKc teo kiLu 0unt aIrton 0Q dng '%m
ampe-k. Sa in tr c trT 0) R1!,,;#RA!,F;# RP!F;# Rm! 1k# *ma+! ;,H cmUc o n6 Vn 0au t2n c5c trT 0) tBm o cWaampe-k
rang P
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
4/33
O LNG IN BI TP
Hnh B.1./
Gii:
T0i lch $%& m
C0! *ma+.Rm! ;,H.1k# ! ;,mC
*0! m'!!! #" 1,
;;,
PA1==++
*t!*0E*m!;,HE1,m ! 1,,;m= *!1,m.
Ja in X9C0! *m(RmERP ! ;,H.(1k#EF;# ! ;,mC
*0! m'm#
!!
#"1,,
;-F;-,
;,
A1=
+=
+
Ja in
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
5/33
O LNG IN BI TP
C0! *m(RmERAERP ! ;,H(1k# E F;#E,F;# !;,mC
*0 ! == ,;-,;,1 m#!#" 1.* ! ;,HE1!1,,,,; !1
1.F Mt c cu o t in *ma+ !1,,Hin trdYI ni (dYI 4un Rm ! 1J# 68c 0Q dng '%m$Zn k
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
6/33
O LNG IN BI TP
Ji C! Ctd!1,,C !D *M! *ma+!1,,H
R0! '#
1,,
1,,
-1J# !"""J#
T0i lch $%3& m*m ! ,G;.1,,H ! G;H
C! *m(R0E Rm G;H("""k# E1k#!G;C
T0i lch $%& m*m! ;, H
C! ;, H(""" k#E1k#!;,C
T0i lch $%(& m
C! A;H(""" k#E1k#!A;C
1.; Mt c cu o t in c *ma+!;, H= Rm!1G,, # 68c 0Q dng '%m $Zn k
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
7/33
O LNG IN BI TP
Hnh B.1.&
Gii
Th4- hnh a)
==
==
====>
=+
5'
#!
k'#!
k'
#!m!
!!m
""\P-11G,,;,
1,,
P-""\1G,,;,;,
P-1"\1G,,;,
1,
*
C
*
C
P
A
ma+
1
ma+
1
Th4- hnh 6)
==
==>=+++
===
=++
===
5kk'
#
!!!I
#!
I
#!!!!
kk'
#!m!
a7
#!
#!!!
k'
#!
I
#!
mm
m
m
m
11G,,P-1"\\,,;,
1,,
P
\,,1G,,P-1"\;,
;,
*m
*m
P-1"\1G,,;,
1,
1AP
P
ma+
PA1
1A
A
AA1
ma+
11
rang G
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
8/33
O LNG IN BI TP
1.[ Mt $Znk c tBm o ;C 68c mKc $%omUc o in 5p ai Bu in tr RA n6 Vn
0au9a 2n in 5p CRAki c6a mKc CZnk.: 2n CRAki mKc $Zn k c nUI A,k#]C.c 2n CRAki mKc $Zn k c nUI A,,k#]C
Hnh B.1.8
Gii:
aCRAki c6a mKc CZnk.#
kk
k#
!!
!9#! ;
;,G,
;,1A
A1
AA
=+
=
+=
:CNi $Zn k c nUI A,k#]C.rang \
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
9/33
O LNG IN BI TP
R$!;C.A,k#]C!1,,k#
R$]]RA!1,,k#]];,k#!PPPk#
CRA!#
kk
k#
!!!
!!9
:
: \G-PP-PPG,
P-PP1A
]]
]]
A1
A =+
=
+=
cCNi $Zn k c nUI A,,k#]CR$!;C.A,,k#]C!1k#
R$]]RA!1M#]];,k#! FG[Ak#
#kk
k##
!\[-F[A-FGG,
[A-FG1A
A+
= !F\[C
1.GMt c cu o t in c *@0! 1,,H $% intrGP c cu o Rm!1k# 68c 0Q dng '%m$Znk X c C tBm o ! 1,,C. MUc c^n
'6u c dUng cBu 0Q dng diode 0i'icon n6Vn $_ diode c C>(^n!,GC
a t2n in tr n)i tip R0
: 2n 'c cWa $Znk ki in 5p 6a $%o$Znk '% G;C $% ;,C (trT iu dng-RM?.
c 2n nUI cWa $Zn k. 2n iu o '% t2n iu+oaI ci`u dUng 0in.
rang "
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
10/33
O LNG IN BI TP
Hnh B.1.3
Gii:
a2n R09
;< l= m0ch ch>nh l?@ t-=n k nAn ta c C@an h)
*(trT ^n! *t:],[PG
Cm (trT ^n! #A
X cu o c9
rang 1,
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
11/33
O LNG IN BI TP
."-",,111
1,,
1111;GG,G-,G,G-,(1;G
;,1G-\",
G-,A(;,F1F-1([GP-,
;,
G;
1G-\",
G-,A(G;F1F-1([PG-,
AF1F-1[PG-,[PG-,
G;
G-\",11;G
G-,.A(1,,.F1F-1(
AF1F-1AF1F-1
9
1;G[PG-,
1,,1,,
==
====
=+
=
=
=
+
=
+
==
=
=
=
=+
=
====
k'
#!
''IP!5DI'Ic
'kk
##I
#Ehi#
'I
kk
##
!!
##II
#Ehi#6
kk'
##
!mIF
##!"
!m!"
##
tacB
''
I'II
m
t6
t6
m"
Gmt6
GtGt
Ft6G"
/ nUI! #k#k
],,"-"1,,
"-",,=
1.\ Mt c cu o t in c *@0! ;,H= Rm!1G,,# kt 8p $Ni mUc c^n '6u :5n kV n6Vn 0au. ! ,GC $Zn kc CtBm o! ;,C.
a 2n R0$% R?: 2n nUI cWa CZnk trong ai tr67ng
8p9 c
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
12/33
O LNG IN BI TP
Hnh B.1.
Gii:
aTJnh !":= !DH
f YI 0Q dng c^n '6u :5n kV nn ta c9
*p!*t:](,;.,[GP9 trT ^n trong tr67ng 8pc^n '6u :5n kV
X cu o c *@0 ! *t: ! ;, H!D *m! ;,H](,;.,[GP ! 1;G H(trT ^n
Ji C! A, Ctd *>(^n c gi5 trT 1,, H.
CbI ki C! Ctd *>(^n c gi5 trT9
rang 1A
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
13/33
O LNG IN BI TP
=
=
=
=
===
===
===+=
==
k'
#m##
I
###!"
!
###I
'
m#
I
#!
m#'!I#
'''IIIIII
''I
G
Gmt
D
Gmt
G
DH
m
DH
mmF
5GDHDHmG
G
;-1P";,,
G-,"-A[[;,F1F-1F1F-1
F1F-1
GG\PFP
"-A[[
"-A[[1G,,1;G
PFP1;G;,,
;,,1,,dA,
d1,,
:TJnh nh0(^n
CNi * '% d&ng in mUc c2n cUI 4ua R0 trong:5n kV d6ng.
rang 1P
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
14/33
O LNG IN BI TP
#k#
knha
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
15/33
O LNG IN BI TP
Gii:
X^n '6u to%n kV nn ta c9
*m(trT ^n m'm'It6 ;G-1[GP-,1[PG-, ===
/in 5p m ai Bu cun t :in d&ng(trT^n9
m ! (RmER0 E AC>! 1;Gm(A,k# E
1G,,# E 1FC! P;;C 0(t hi@ n*! (,G,G.P;;C !
A;1C
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
16/33
O LNG IN BI TP
A.1 Xo :! 1;= R1! 1;k#= Rm!1k#= RA!1k#= *ma+! ;,H. l5c Tn trT 0) c cWa R+ki*:! *ma+= *m ! *ma+= *m !P]F *ma+.
Gii:
Ui *m!*ma+! ;,H= Cm! *ma+ Rm! ;,H 1k# ! ;,m.
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
17/33
O LNG IN BI TP
A.A Mt om-k 'oUi n)i tip c mUc o (ind6Ni YI. gun :! 1;C c cu o c *@0!
1,,H. /in tr R1 E Rm! 1;k#.a2n d&ng in cUI 4ua c cu o ki R+ ! ,.
:2n trT gi5 R+ L co kim c^ ti c 'c:ng 1]A >???< (>??
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
18/33
O LNG IN BI TP
( ) ==+==++ kk'
#!!
I
9!
I
9!!!
m
m
6
7
m
6
m7 1;1;
;,
;-111
/ 'c :ng 1]F >????< $% P]F >?
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
19/33
O LNG IN BI TP
Gii:
Ji kim 'c t)i a (>??
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
20/33
O LNG IN BI TP
A.F Mt om-k co mUc o niu Vn :ai P. cngun.: giam +u)ng c^ c&n 1PC. 2n trT gi5 mNicWa RA .'Ui c5c gi5 trT R+ t6ng ng $Ni 'c cWa
kim9 1]A >???
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
21/33
O LNG IN BI TP
A.F 2n d&ng in cUI 4ua c cu o $% 'c cWa kim c^ tT cWa om-k c mUc dZ
n6 Vn $_ ki ta 0Q dung tBm o R1 trongai tr67ng 8p9
aR+ ! ,: R+ ! AF#
Hnh B.(.&
Gii:
rang A1
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
22/33
O LNG IN BI TP
MUc t6ng 6ng cWa om- k ki ta 0Qdng tBm o R1 trong ai truogvng@ 8p R+!, $% R+ ! AF# n6 0au9
R+! ,= ( )[ ]+++= kkk #I6 \A-P\G;-A""-"]]1,1F ;-1
( ) m'
k
#I6 ;1[-[A
[\;-1[]]1,1F
;-1=
+=
?
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
23/33
O LNG IN BI TP
Hnh B.(.8
Gii:
MUc t6ng 6ng cWa wm-k ki ta 0Qdng tBm o R1,, $% R ! ,.
( )[ ]+++=
kkkk
#I6
\A-P\G;-A"]]11FG,
;-1
( ) '
kkk
#P\-[AA
[";-1;]]1AP[
;-1=
+=
U"m I'
kk
k'I ==
+
= ;-PG
[";-[1
1[AAP\ 9 kim c^ tT
'c t)i a.
MUc t6ng 6ng cWa om-k ki ta 0Q
dungx tBm o R1,k# $% R+! ,.
rang AP
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
24/33
O LNG IN BI TP
( )[ ]++=
kkkk
#I6
\A-P\G;-A]]1,AP[
1;
[ ] 'kkk#
;-[A[";-[]]1,AP[
1;=
+=
U"m Ikkk
k'I ==
+
= ;-PG
[";-[1,
1,;-[A 9 Jim c^ tT 'c
t)i a.
A.[ a o in tr :ng c5c dng p6ng p5p
C $% 68c mKc ry d%i. mpe-k c^
,;$Zn k c^ ;,,C.mpe k c Ra!
1,#1,k#]C. 2n gi5 trT R.
Hnh B.(.3
Gii:
E ! ;,,C= * ! ,;
rang AF
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
25/33
O LNG IN BI TP
==+
=+ 1,,,;-,
;,,
'
#
I
99!! '
7
R ! 1,,,# - Ra! 1,,,# - 1,# !"",#.
A.G X5c ampe-k $Zn k $% in tr R :%i A.G
68c mKc ry ngKn. zI t2n c^ cWa $Zn k
$% ampe-k (ngun cung cp ${n '% ;,,C.
Hnh B.(.
Gii:
i tr cWa $Zn k 9
R$ ! 1,,,C 1,k#]C !1,M#R$]] R ! 1,M# ]] "",# ! "\""#
rang A;
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
26/33
O LNG IN BI TP
/ c^ cWa $Zn k 9
( )
( ) #
#
!!!
!!#9
:a
: F";"-"\"1,
"-"\";,,,]];,,=
+
=
++
=
/ c^ cWa ampe k9 '#
!!
9II
:
: ;-,"-"\"
F";
]]=
==+= .
CHNG III:
O IN DUNG, IN CM V H CM
P.1.Xo cBu o n6 Vn $_ :it X1!,.1|> $% t^
0) RP]RFc tL c^n 68c taI 3i trong ko}ng9 1,,]1 $% 1]1,, . zI t2n Xlm% cBu c tL o68c.
rang A[
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
27/33
O LNG IN BI TP
Hnh B./.1
Gii:
a c9 X+! X1RP]RF. CNi 9 RP]RF!1,,]1
!DXl! ,1|>(1,,]1 !1,|>
CNi 9 RP]RF!1]1,, !D ,1|>(1]1,, !,,,1|>
CbI cBu c tBm o 9 t ,,,1|>1,|>
P.A. Xo cBu in dung n6 Vn 0au t%n pBn m{u
X1!,1H> =RP!1,k#. Sit rng cBu cYn :ng kingun cung cp co @ ! 1,,~= R1!1A;# $% RF!1FG# . zI tVn gi5 trT R0 X?$% 0) t3n ao < cWat
rang AG
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
28/33
O LNG IN BI TP
Hnh B./.(
Gii:
a c 9 X0!X1RP]RF=
X?!
k
kG
G-1F
1,1-,
! ,.,[\|> =
R?!P
F1
!
!! !
k
k
1,
G-1F1A;!1\P.P#
< !X?R?! A . 1,,~ ,,[\|>1\P\# ! ,,,\
P.P. Xo cBu in dung n6 Vn 0au t%n pBn m{uX1!,1H> =RP!1,k#. Sit rng cBu cYn :ng kingun cung cp co @ ! 1,,~= R1!1A;# $% RF!1FG# . zI tVn gi5 trT R0 X?$% 0) t3n ao < cWat
rang A\
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
29/33
O LNG IN BI TP
Hnh B././
Gii:
a c 9 X0!X1RP]RF=
X?!
k
kG
G-1F
1,1-,
! ,.,[\|> =
R?!P
F1
!
!! !
k
k
1,
G-1F1A; !1\P.P#
< !X?R?! A . 1,,~
,,[\|>
1\P\# ! ,,,\
P.F.XBu Ma+e'' o in c}m dng t%n pBn m{uXP! ,1|> ngun cung cp c tBn 0) @!1,,~. XBu
rang A"
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
30/33
O LNG IN BI TP
cYn :ng ki R1!1A[k#= RP! FG,# $% RF!;,,#.2n trT gi5 in c}m j? in tr R?$% 0) pmct cWa cun dYI.
Hnh B./.2
Gii:
a c 9j?!XPR1RF!,1|> mHk [P;,,A[-1 =
R?! =
= kk
!
!!PF.-1
FG,
;,,A[-1
P
F1
! ,P-,PF-1[P1,,A
=
=
k
mHHV
!
LD
D
rang P,
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
31/33
O LNG IN BI TP
P.;. XBu c ngun cung cp @! 1,,~ cYn :ng kiXP!,1|> R1!1A[k# RP!G;# $% RF!;,,#. 2nin c}m jin tr R$% 0) pm ct cWa
cun dYI
Hnh B./.&
Gii:
j == F1P !!WP ,1|> mHk [P;,,A[-1 =
R =
== kk
!
!!P F-\
G;
;,,A[-1
P
F1
! A1A[P1,,AF-\
=
=
mHHV
k
L
!
P
P
rang P1
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
32/33
O LNG IN BI TP
P.[. zI t2n t%n pBn t6ng 6ng j?R?cWa cundYI c 9j![PM = R! \Fk# ( @ !1,,~.
Gii:
R?! AAA
PP
PP
!X
X!
+=t9 R! \Fk# = R GA 1,,;[-G =P = l LPP =
!Dl!A1,,~[Pm !P"[#
l AP !1;G AAP =1, PP !X + !G,;[ 1,G
R?! =
1\G-,1,,;[-G
1,;G-1F-\G
Pk =
l?! =
G
G
1,,;[-G
[-P"1,,;[-G P"[#
j?! DX ! HV1,,A
[-P"
! [Pm
P.G. zI t2n t%n pBn t6ng 6ng XRcWa tin c R?!1\P\# $% X?!,,[\@ (@!1,,~.
Gii:
a c9 R!( R?A El?A]R?= R?A! (1\P\A!PPG\AP
1,
l?!1]A@X?! 1](A.1,,~.,[\H> !APF,;.1,P#
l AD !;FG\.1,\
rang PA
-
8/11/2019 Bai Tap Ki Thuat Do Luong Dien
33/33
O LNG IN BI TP
R!( PPG\.1,PE;FG\ = 1\P]1,\ A""M#
l! P\PAA
1,F,;-AP1,FG\-;1,G\-PP
+=+
D
DD
XX! !APF1.1,P#
X! 1](A.1,,~.APF1k#! ,,[\|>