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7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
1/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Chng II: MY BIN P
Ngi son:Trn Nh Tho,Trung tm KTTH-HN Hng Tr.
Bi 8: (TPP 18-19)
TNHTON, THIT KTNHTON, THIT KMY BIN P MT PHAMY BIN P MT PHA
http://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpg7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
2/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8: (Lthuyt, TPP 18)
TNH TON, THIT KMY BIN P MT PHA
Ngi son:Trn Nh Tho,Trung tm KTTH-HN Hng Tr.
http://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer-hightolow_smaller.jpghttp://en.wikipedia.org/wiki/Image:Drehstromtransformater_im_Schnitt_Hochspannung.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer-hightolow_smaller.jpghttp://en.wikipedia.org/wiki/Image:Drehstromtransformater_im_Schnitt_Hochspannung.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer-hightolow_smaller.jpghttp://en.wikipedia.org/wiki/Image:Drehstromtransformater_im_Schnitt_Hochspannung.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Small_toroidal_transformer.jpghttp://en.wikipedia.org/wiki/Image:Drehstromtransformater_im_Schnitt_Hochspannung.jpghttp://en.wikipedia.org/wiki/Image:Drehstromtransformater_im_Schnitt_Hochspannung.jpghttp://en.wikipedia.org/wiki/Image:Small_toroidal_transformer.jpghttp://en.wikipedia.org/wiki/Image:Transformer.filament.agr.jpghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:PoleMountTransformer02.jpghttp://en.wikipedia.org/wiki/Image:Transformer-hightolow_smaller.jpg7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
3/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:TNH TON, THIT KMY BiN P MT PHA.
MC TIU:
1- Hiu c quy trnh chung tnh ton, thit
k MBA 1 pha cng sut nh.2- Hiu c yu cu, cch tnh ca tng bckhi thit k MBA 1 pha cng sut nh.
http://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpghttp://en.wikipedia.org/wiki/Image:Transformer3d_col3.svghttp://en.wikipedia.org/wiki/Image:Polemount-singlephase-closeup.jpg7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
4/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
- Tnh ton my bin p nh th no? Gmnhng ni dung g ?
1-Tnh cng sut ( Sm)2-Tnh ton mch t ( Tit din li thp, l
thp)
3-Tnh s vng dy ca cc cun dy. ( N1, N2 )4-Tit din dy qun ( Sd),chn ng knh dy ( Ddq).
5-Tnh din tch ca s li thp ( Scs)
1-Tnh cng sut ( Sm)2-Tnh ton mch t ( Tit din li thp, l
thp)
3-Tnh s vng dy ca cc cun dy. ( N1, N2 )4-Tit din dy qun ( Sd),chn ng knh dy ( Ddq).
5-Tnh din tch ca s li thp ( Scs)
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
5/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
+Vic tnh ton MBA phi da vo mt s php tnh rt phctp nh gii quyt cc ch c ti, gii hn st p cho php,nhit ti a. Do , trong thc t gii quyt vn k thutny theo phng php tnh ton mt s php tnh thc nghimn gin nhng kh chnh xc.
Gm cc bc sau y:
1- Xc nh cng sut ca MBA.2- Tnh ton mch t.3- Tnh s vng dy ca cc
cun dy.4- Tnh tit din dy qun, chn
ng knh dy.5- Tnh tit din ca s li thpa
h
b
c
Shi
a/2
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
6/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
1- Xc nh cng sutMBA:-
Xc nh cng sut MBA cn ch to, v hiu sutMBA rt cao, nn:
S1 = S2 = U2x I2 ( V.A.)Cng sut MBA cn ch to s l:
Sm = U2x I2 ( V.A.)
Trong :U2v I2 l in p v dng in th cp nhmc ca MBA theo yu cu ca ngi thit k (da vo ph ti )
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
7/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
2- Tnh ton mch t MBA :
a) Chn mch t kiu bc ckch thc nh sau:
a: Chiu rng tr qun dy.b: Chiu dy tr qun.c: Chiu rng ca s.h: Chiu cao ca s.a/2: rng l thp ch I.
Nh vy, tit din tr thpchnh:
Shi = a x b ( cm)
a
h
b
c
Shi
a/2
b
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
8/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
2- Tnh ton mch t MBA :b) Tnh tit din tr qun dyca li thp:Din tch ca tr qun dy
phi ph hp vi cng sutMBA. Tnh gn ng theo CTthc nghim:a/2
a
h
b
c
Shi
a/2
mhiSS 2,1==
Trong :Shi = a x b ( cm2) l din tchhu ch ca tr.S
m
l cng sut MBA ( V.A.)
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
9/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
2- Tnh ton mch t MBA :+Tnh tit din tr qun dyca li thp:Bit din tch ca tr qun
dy, tnh b dy ca li thpv s X tm l thp ( dy0,5mm)a/2
a
h
b
c
Shi
a/2
a
SbbaS
hi== v
Trong :Shi = a x b ( cm2) l din tch huch ca tr.X l s tm l thp ( dy 0,5mm)
5,0
10=b
X
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
10/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi tp 1:
Tnh ton mch t cho 1 MBA d kin in p vo 220vn, in p ra 12 vn, 5 ampe?
Gii:1-Tnh ton cng sut MBA:V hiu sut cao nn Sm = S1 = S2= U2x I2
mhiSS 2,1=
602,1=hi
S
S m= 12 x 5 = 60VA
Shi= 1,2 x 7,75 = 9,3 cm2
2- Tnh din tch li thp: p dng CT:
http://var/www/apps/conversion/tmp/scratch_1/D:%5CWINDOWS%5Csystem32%5Ccalc.exe7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
11/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8: (L thuyt, TPP 19)
TNH TON, THIT KTNH TON, THIT KMY BIN P MTMY BIN P MTPHA (TT)PHA (TT)
Ngi son:Trn Nh Tho,Trung tm KTTH-HN Hng Tr.
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
12/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi tp 1:
Tnh ton mch t cho 1 MBA cng sut nh, d kinin p vo 220 vn, in p ra 12 vn, 3 ampe?
Gii:1-Tnh ton cng sut MBA:V hiu sut cao nn Sm = S1 = S2= U2x I2
mhiSS 2,1=
362,1=hi
S
S m= 12 x 3 = 36VA
Shi= 1,2 x 6 = 7,2 cm2
2- Tnh din tch li thp: p dng CT:
http://var/www/apps/conversion/tmp/scratch_1/D:%5CWINDOWS%5Csystem32%5Ccalc.exe7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
13/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8: (TPP19)TNH TON, THIT K
MY BIN P MT PHA (TT)
MC TIU:
1- Hiu c quy trnh chung tnh ton, thitk MBA 1 pha cng sut nh.
2- Hiu c yu cu, cch tnh ca cc bc tnhs vng dy qun, tit din dy, ng knh dy,din tch ca s dy qun.
3- Rn k nng tnh ton MBA theo thc nghim.
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
14/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
3- Tnh s vng dy ca cc cun dyMBA:-
Trong :
42 l h s cho st tt. 50 : st xu
b - T , tnh c s vng cun s cp:N1= n x U1.
c - S vng cun th cp:N
2
= n x (U2
+ 10% U2
) .
hiS
n50_42
=
Xc nh s vng/ 1 vn (n) l i lng trunggian tnh s vng s cp N1 v th cp
N2 :a- S vng n c th tra bng (8-3 SGK)hoc tnh theo cng thc thc hnh:
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
15/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
BT2: -Tnh ton s vng/vn v s vng s cp,th cp cho 1 MBA d kin in p vo 220vn, in p ra 12 vn, 3 ampe?
Gii:
1-Tnh ton cng sut MBA:V hiu sut cao nn2- Tnh din tch li thp: Thay s vo
,
3- Tnh s vng/vn : (St tt)
4- S vng s: N1=n x U1=
cun th: N2=n x (U2+10%U2)=
362,1=hi
S
hiSn
42=
6 x (12+1,2)
=
6 x 220=
Shi= 1,2 x 6 = 7,2 cm2
Sm = U2 x I2 =12 x 3 = 36VA
68,52,7
42==
1320 vng79,2 vng
http://var/www/apps/conversion/tmp/scratch_1/D:%5CWINDOWS%5Csystem32%5Ccalc.exe7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
16/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
4- Tnh tit din dy qun hoc ng knhdy:-Tit din dy dn c tnh nh sau:
Trong :Sd l tit din dy ( mm2)I : Cng ( cun s hoc th) :
AmpeJ: Mt dng in A/mm2
+ Bng chn tr s J theo cng sut MBA:
J
IS
d=
Sd
Sm(VA) >500 >200 >100 >50 50
J(A/mm2) 2 2.5 3 3,5 4
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
17/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
4- Tnh tit din dy qun hoc ng knhdy:-
Trong :Sd l tit din dy ( mm2)
Dd: ng knh ( cun s hoc th):mm: Chn 3,14
+ Hoc dng bng chn tr s Dd theo tit
din dy ( bng 8-5 SGK)
14,3
4 dd
SD =
Sd
Dd
ng knh dy qun c tnh nh sau:
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
18/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
5- Tnh din tch ca s li thpMBA :
+Din tch ca s li thp c kchthc nh sau:
Scs= H x cChiu cao ca s: H = 3c s tit kimvt liu v hnh dng MBA p.Tng tit din 2 cun s cp v th
cp:
Ssc=N1.Sd1 v Stc=N2.Sd2
Vy
Kl: h s lp y. Kl = 0,2 0,3 0,4:theo cng sut Sm tng ln t 100
a
h
Scs
c
a/2
a/2
l
tcsc
cs
K
SSchS
+= .
Ssc
c
Stc
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
19/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
6- Sp xp dy qun trong ca s, v s qun dyMBA:-
a-Tnh s vng dy cho mi lp :h
ng knh dy c cch in
S vng mi lp = - 1
S vng dy mi
lp
S vng dyS lp dy qun =
b-Tip , tnh s lp dy qun:
c-V s qun dy c ghi ch s vng chomi cun dy:
- S vng cun s cp N1 , th cp N2 ; N2
N2
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
20/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi tp: Hy ni cc cu ct A vi ct B chohp l:
Th t ccbc (B)
4
3
5
1
2
Ni dung cc bc (A)
Xc nh cng sut ca MBA.Tnh ton mch t.
Tnh s vng dy ca cc cun dy
Tit din dy qun, chn ngknh dy.
Tnh tit din ca s li thp
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
21/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
- Bi tp p dng: ( Theo nhm, mi nhm 1cu)
1) Tnh ton qun dy cho 1MBA c in p cun s cp l 220v, cun th cp c in p l 6vn, 12 vn. Cho st tt, mu lthp bc c a = 3 cm.a/2
a
h
b
c
Shi
a/2
2) Cho mu l thp o c a=3,2
cm, b = 3,8 cm. Tnh cng sut dkin ca MBA. Cho U1= 48 v, U2=6v,9v. Tnh s vng dy v v s qun dy cho my?
7/29/2019 Bai 9 Tinh Toan Thiet Ke May Bien AP 1 Pha
22/22
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
Bi 8:Bi 8:TNH TON, THIT K MY BiN P 1 PHATNH TON, THIT K MY BiN P 1 PHA
KNH CHC QU THY CSC KHE & THNH T
Thc hin: TRN NH THO Thng 10,2010