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;


2/33

O LNG IN BI TP


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


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


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


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


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


8/33

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 \


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 "


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,


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


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


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


14/33

O LNG IN BI TP

#k#

knha


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


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.


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 >???< (>??


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 >?


19/33

O LNG IN BI TP

Gii:

Ji kim 'c t)i a (>??


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 >???


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


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=

+=

?


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


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


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;


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[


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


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\


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"


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,


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


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


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#! ,,[\|>

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