Thiet Ke Cung Cap Dien Cho Chung Cu City Garden

LVTN Thit k cung cp in cho chung c City Garden

SVTH: MAI NGUYN BNH PHNG Trang MSSV: 40601832 ii

Li cm n Em xin chn thnh by t lng bit n su sc n tt c cc thy c

ca trng i Hc Bch Khoa TP.HCM ni chung, ca khoa in-in T v cc thy c ca b mn Thit B in ni ring. Nhng ngi hng dn, ging dy v trang b cho em nhiu kin thc qu bu trong nhng nm hc i hc.

c bit , em cng xin cm n thy Nguyn Xun Cng hng dn tn tnh, to mi iu kin thun l i cho em trong sut qu trnh thc hin ti ny.

Cm n gia nh v nhng ngi thn ht lng tin tng v to cho em nhiu nim tin vo cuc sng.

Cui cng, xin cm n n tt c anh em, bn b, nhng ngi gip v mt t in thn cng nh v t cht em c th hon thnh tp lun vn ny.

Sinh vin

Mai Nguyn Bnh Phng


SVTH: MAI NGUYN BNH PHNG Trang MSSV: 40601832 iii

Tm tt lun vn Ngy nay, nn kinh t nc ta ang pht trin mnh m, i sng ca nhn dn c

nng ln nhanh chng. Dn n nhu cu in nng trong cc lnh vc cng nghip, nng nghip, dch v v sinh hot tng trng khng ngng. p ng nhu cu rt ng cn b k thut trong v ngoi ngnh in lc ang tham gia thit k, lp t cc cng trnh cung cp in phc v nhu cu trn.

Cp in l mt cng trnh in. thc hin mt cng trnh in tuy nh cng cn c kin thc tng hp t cc ngnh khc nhau, phi c s hiu bit v x hi, mi trng v i tng cp in. t tnh ton la chn a ra phng n ti u nht.

Lun vn gm 2 phn: Phn 1: Thit k cung cp in cho chung c City Garden. Chng m u: Gii thiu cng trnh Chng 1: Thit k chiu sng Chng 2: Tnh ton ph ti Chng 3: Chn dy dn v thit b bo v Chng 4: Chn my bin p v b cng sut phn khng Chng 5: Tnh st p v ngn mch Chng 6: Ni t an ton Chng 7: Tnh ton chng st Phn 2: Tit kim in cho cn h chung c Tnh hnh in nng nc ta H thng C-Bus

Em xin chn thnh cm n


SVTH: MAI NGUYN BNH PHNG Trang MSSV: 40601832 iv

Nhn xt ca gio vin phn bin

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SVTH: MAI NGUYN BNH PHNG Trang MSSV: 40601832 v

Mc Lc Phn 1: Thit k cung cp in cho chung c City Garden........................................................................ 1 Chng m u: Gii thiu chung v ta nh City Garden ....................................................................... 2 Chng 1: Thit k chiu sng ................................................................................................................. 6

A) Cc vn chung v thit k chiu sng................................................................................... 6 1) LA CHN CC THNG S: ............................................................................................... 6 2) PHNG PHP TNH TON CHIU SNG: ....................................................................... 7

B) Tnh ton chiu sng:.................................................................................................................... 9 3) Tnh chiu sng cho cn h tng 2-21 ..................................................................................... 14

Chng 2: Tnh ton ph ti ................................................................................................................... 25 I) Tng hm ................................................................................................................................... 25

1) Xc nh ph ti chiu sng v cm cho tng hm ................................................................ 25 2) Xc nh ph ti my bm nc thi: ...................................................................................... 28 3) Xc nh ph ti bm x l nc thi: .................................................................................... 28 4) Xc nh ph ti qut gi thi: ................................................................................................ 29 5) Xc nh ph ti bm du ....................................................................................................... 29 6) Xc nh ph ti bm lc ........................................................................................................ 29 7) Xc nh ph ti t bm tng p.............................................................................................. 29 8) Xc nh ph ti tnh ton cho bm trung chuyn: ................................................................... 29 9) Xc nh ph ti tnh ton cho bm cha chy: ....................................................................... 29

II) Tng 1: ....................................................................................................................................... 31 III) Tng 2-10: .............................................................................................................................. 33 IV) Tng 11-20: ............................................................................................................................ 41 V) Tng 21 v tng 21 lng ......................................................................................................... 45 VI) Tng k thut:......................................................................................................................... 47 VII) Tnh ph ti ngoi cn h ........................................................................................................ 49

Chng 3: Chn thit b bo v v dy dn ............................................................................................ 54 I) Chn thit b bo v:................................................................................................................... 54 II) Chn dy dn.......................................................................................................................... 59

Chng 4: Chn my bin p v b cng sut phn khng ..................................................................... 70 1) Chn my bin p ....................................................................................................................... 70 2) B cng sut phn khng ............................................................................................................ 70 3) Chn ngun d phng ................................................................................................................ 72

Chng 5: Tnh st p v ngn mch ..................................................................................................... 74 I) Tnh st p ............................................................................................................................. 74


SVTH: MAI NGUYN BNH PHNG Trang MSSV: 40601832 vi

II) Tnh ton ngn mch 3 pha v 1 pha ....................................................................................... 79 Chng 6: Ni t an ton trong h thng in ...................................................................................... 95

1) CC KHI NIM CHUNG ....................................................................................................... 95 2) Chn s ni t cho chung c City Garden ............................................................................ 96

Chng 7: Chng st trc tip .............................................................................................................. 101 I) TNG QUAN: ......................................................................................................................... 101 II) CC PHNG PHP CHNG ST: .................................................................................. 101

1) Bo V Chng St S Dng Kim Thu St(Phng Php C in): ....................................... 101 2) Bo V Chng St S Dng u ESE(phng php hin i): .............................................. 101 3) Bo V Chng St Dng Dy Chng St............................................................................... 102

III) Thit k chng st ................................................................................................................. 102 Phn 2: Chuyn tit kim in cho chung c ................................................................................... 105

I) Tnh hnh in nng nc ta: II) Gii php tit kim cho cn h dng h thng C-Bus ............................................................ 105 III) Cc bin php tit kim hng ngy ........................................................................................ 115

TI LIU THAM KHO .................................................................................................................... 117


SVTH: MAI NGUYN BNH PHNG Trang MSSV: 40601832 1

Phn 1: Thit k cung cp in cho chung c City Garden



Chng m u: Gii thiu chung v ta nh City Garden 1) Gii thiu v City Garden: C IM V TR: D n cao cp City Garden ta lc ti 59 Ng Tt T, Phng 21, Qun Bnh Thnh, TP. H Ch Minh. Ch mt khong 5 pht n trung tm Qun 1 vi cc khu thng mi, nh hng, phng tr ca nhc, qun c ph, cc ca hng thi trang City Garden, vi v tr l tng, em n cho c dn mt cuc sng hin i nhng vn trnh xa khi nhp sng th n o hi h. CITY GARDEN s l khu vc dn c in hnh cho li sng vn minh, hin i, c bo v tt nht nhng chan ha gn gi vi thin nhin v lun cao nhng gi tr cuc sng gia nh cng tnh gn kt gia mi ngi trong cng ng. QUY M D N: CITY GARDEN c xy dng trn khu t c tng din tch hn 23.000 m2, c o vi cc ta nh ln sng hnh elip cao t 21- 30 tng vi 927 cn h mang n nhiu s la chn khc nhau: loi 1 phng ng, 2 phng ng, 3 phng ng v cn h penthouse tuyt m. Ch xy dng 23.2% tng din tch, 75% din tch cn li chim trn 17.000 m2 c City Garden dnh cho cnh quan xanh cng cc tin ch cng cng em n cho c dn mt mi trng sng trong lnh v thn thin. City Garden gm 4 ta nh:



Tuy nhin o y ta ch tnh ton thit k cung cp in cho ta thp n Avenue 21 tng: Tng hm : gm nh gi xe, cc phng my bin p, my pht Tng 1: gm cc phng dnh cho sinh hot chung. Tng 2-10: mi tng gm 7 cn h. Tng 11-20: mi tng gm 5 cn h. Tng 21: gm 4 cn h. 2) Gii thiu v cung cp in:

Ngy nay, nn kinh t nc ta ang pht trin mnh m, i sng ca nhn dn c nng ln nhanh chng. Dn n nhu cu in nng trong cc lnh vc cng nghip, nng nghip, dch v v sinh hot tng trng khng ngng. p ng nhu cu rt ng cn b k thut trong v ngoi ngnh in lc ang tham gia thit k, lp t cc cng trnh cung cp in phc v nhu cu trn.

Cp in l mt cng trnh in. thc hin mt cng trnh in tuy nh cng cn c kin thc tng hp t cc ngnh khc nhau, phi c s hiu bit v x hi, mi trng v i tng cp in. t tnh ton la chn a ra phng n ti u nht.



Cung cp in l trnh by nhng bc cn thit cc tnh ton, la chn cc phn t h thng in thch hp vi tng i tng. Thit k chiu sng cho phn xng, cng cng. Tinh ton chn la dy dn ph hp, m bo st p chp nhn c, c kh nng chu dng ngn mch vi thi gian nht nh. Tnh ton dung lng b cn thit gim in p, in nng trn li trung h p... Thit k i dy bc n trin khai hon tt mt bn thit k cung cp in. Bn cnh , cn phi thit la chn ngun d phng cho nh my m bm s n nh lm vic ca i tng.

Trong tnh hnh kinh t th trng hin nay, cc x nghip ln nh cc t hp sn xut u phi t hoch ton kinh doanh trong cuc cnh tranh quyt lit v cht lng v gi c sn phm. Cng nghip thng mi v dch v chim mt t trng ngy cng tng trong nn kinh t quc doanh v thc s khch hng quan trng ca ngnh in lc. S mt in, cht lng in xu (ch yu l in p thp) u nh hng n cht lng sn phm, gy ph phm, gim hiu sut lao ng. t bit nh hng rt ln n cc x nghip may, ha cht in t i hi s chnh xc. Do m bm tin cy cp in, nng cao cht lng in nng l mi quan tm hng u. Mt x hi c in s lm cho mc sng tng nhanh vi cc trang thit b ni tht sang trng nhng nu chng ta lp t mt cch cu th , thiu tun th cc quy tc an ton s rt nguy him. Nng thn v cc ph ti sinh hot l cc ph ti khng l. Ngi thit k cn quan tm n st p trn ng dy xa nht. Thit k cp in cho ph ti sinh hot nn chn thit b tt nhm m bo an ton v tin cy cp in cho ngi s dng.

Tm li, vic thit k cp in i vi cc i tng l rt a dng vi nhng t th khc nhau. Nh vy mt n thit k cung cp in tt i vi bt c i tng no cng cn tha mn cc yu cu sau: tin cy cp in :Mc tin cy cung cp in tu thuc vo yu cu ca ph ti.

Vi nhng cng trnh quan trng cp quc gia phi m bo lin tc cp in mc cao nht ngha l khng mt in trong mi tnh hung. Nhng i tng nh nh my, x nghip, t Sx .. tt nht l dng my in d phng, khi mt in s dng in my pht cp cho nhng ph ti quan trng. Cht lng in : Cht lng in c nh gi qua 2 ch tiu tn s v in p. Ch tiu tn s do c quan in h thng quc gia iu chnh. Nh vy ngi thit k phi m bo vn in p. in p li trung v h ch cho php dao ng trong khong %5 . Cc x nghip nh my yu cu cht lng in p cao th phi l %5.2 .



An ton : Cng trnh cp in phi c thit k c tnh an ton cao. An ton cho ngi vn hnh, ngi s dng, an ton cho thit b tm li cho ton b cng trnh. Tm li ngi thit k ngoi vic tnh ton chnh xc, chn la ng thit b v kh c cn phi nm vng quy nh v an ton. Hiu r mi trng h thng cp in v i tng cp in. Kinh t : Trong qu trnh thit k thng xut hin nhiu phng n, cc phng n thng c nhng u v khuyt im ring, c th li v kinh t nhng xt v k thut th khng c tt. Mt phng n t tin thng c t im l tin cy v an ton cao hn, m bo hi ho gia 2 vn kinh t k thut cn phi nghin cu k lng mi t c ti u.



Chng 1: Thit k chiu sng A) Cc vn chung v thit k chiu sng: Chiu sng lm vic: dng m bo s lm vic, hot ng bnh thng ca ngi, vt v phng tin vn chuyn khi khng c hoc thiu nh sng t nhin. Chiu sng s c: cho php vn tip tc lm vic trong mt thi gian hoc m bo s an ton ca ngi i ra khi nh khi h chiu sng lm vic b h hng hay b s c. Chiu sng an ton: phn tn ngi (trong nh hoc ngoi tri) cn thit nhng li i li, nhng ni trong x nghip v cng cng c hn 50 ngi, nhng cu thang cc to nh c t 6 tng tr ln, nhng phn xng c hn 50 ngi v nhng ni khc hn 100 ngi. Chiu sng bo v: cn thit trong m ti cc cng trnh xy dng hoc nhng ni sn xut. 1) LA CHN CC THNG S: a/ Chn ngun sng: Chn ngun sng theo cc tiu chun sau y: Nhit mu c chn theo biu Kruithof. Ch s mu. Vic s dng tng cng v gin on ca a im. Tui th ca n. Quang hiu n. b/ La chn h thng chiu sng: thit k chiu sng trong nh, thng s dng cc phng thc chiu sng sau: H 1 (h chiu sng chung): H 2 (h chiu sng hn hp):. c/ Chn cc thit b chiu sng:

S la chn TBCS phi da trn iu kin sau: Tnh cht ca mi trng xung quanh. Cc yu cu v s phn b nh sng v s gim chi.



Cc phng n kinh t. d/ Chn ri E: Vic chn ri ph thuc vo cc yu t sau: Loi cng vic, kch thc cc vt, s sai bit ca vt v hu cnh. Mc cng thng ca cng vic. La tui ngi s dng. H chiu sng, loi ngun sng la chn. e/ Chn h s d tr k (h s b d):

Trong thit k chiu sng, khi tnh cng sut cn phi ch trong qu trnh vn hnh ca h chiu sng, gi tr ri trn mt phng lm vic gim. Nhng nguyn nhn chnh lm gim ri E l: gim quang thng ca ngun sng trong qu trnh lm vic, gim hiu sut ca n khi TBCS, tng, trn b bn. Nh vy, khi tnh cng sut ngun sng m bo gi tr tiu chun trn mt phng lm vic trong qu trnh vn hnh ca TBCS cn phi cho thm mt h s tnh n s gim ri E. H s gi l h s d tr k (Lin X c) hay h s b d (Php).

2) PHNG PHP TNH TON CHIU SNG: C nhiu phng php tnh ton chiu sng nh: Lin X c cc phng php tnh ton chiu sng sau: + Phng php h s s dng. + Phng php cng sut ring. + Phng php im. M c cc phng php tnh ton chiu sng sau: + Phng php quang thng. + Phng php im. Cn Php th c cc phng php tnh ton chiu sng sau: + Phng php h s s dng. + Phng php im.



v c phng php tnh ton chiu sng bng cc phm mm chiu sng. Tnh ton chiu sng theo phng php h s s dng gm c cc bc: 1/ Nghin cu i tng chiu sng. 2/ La chn ri yu cu. 3/ Chn h chiu sng. 4/ Chn ngun sng. 5/ Chn b n. 6/ La chn chiu cao treo n: Ty theo: c im ca i tng, loi cng vic, loi bng n, s gim chi, b mt lm vic. Ta c th phn b cc n st trn (h=0) hoc cch trn mt khong h. Chiu cao b mt lm vic c th trn cao 0.8 m so vi sn (mt bn) hoc ngay trn sn ty theo cng vic. Khi cao treo n so vi b mt lm vic: htt= H - h-0.8 (vi H: chiu cao t sn n trn). (1.1) Cn ch rng chiu cao htt i vi n hunh quang khng c vt qu 4 m, nu khng sng trn b mt lm vic khng . Cn i vi cc n thy ngn cao p, n halogen kim loi nn treo trn cao t 5m tr ln trnh chi. 7/ Xc nh cc thng s k thut nh sng:

- Tnh ch s a im: c trng cho kch thc hnh hc ca a im

)( bahabK

tt (1.2)

Vi: a,b chiu di v rng ca cn phng; htt chiu cao h tnh ton - Tnh h s b: da vo bng ph lc 7 ca ti liu chiu sng.

- Tnh t s treo: tthh

hj ''

(1.3)

Vi: h chiu cao t b mt n n trn. Xc nh h s s dng:



Da trn cc thng s: loi b n, t s treo, ch s a im, h s phn x trn, tng, sn ta tra gi tr h s s dng trong cc bng do cc nh ch to cho sn.

8/ Xc nh quang thng tng yu cu: U

SdEtctong (1.4)

Trong : Etc ri la chn theo tiu chun (lux) S din tch b mt lm vic (m2). d h s b.

tong quang thng tng cc b n (lm). 9/ Xc nh s b n:

bocacbong

tongbodenN

1/ (1.5)

Kim tra sai s quang thng:

%100..

% 1/tong

tongbocacbongbodenN

(1.6)

Trong thc t sai s t 10% n 20% th chp nhn c. 10/ Phn b cc b n da trn cc yu t:

Phn b cho ri ng u v trnh chi, c im kin trc ca i tng, phn b c. Tha mn cc yu cu v khong cch ti a gia cc dy v gia cc n trong mt dy, d dng vn hnh v bo tr. 11/ Kim tra ri trung bnh trn b mt lm vic:

SdUN

E bocacbongbodentb.. 1/ (1.7)

B) Tnh ton chiu sng: 1) Tnh ton chiu sng cho tng hm : Gm 2 nh gi xe, phng my bm, phng my bin p, phng my pht, bn du, phng my bm nc thi. Nh gi xe 1: tin cho vic tnh ton ta chia lm 2 vng:

Vng 1:



1 Kch thc : chiu di: a =27.1(m); chiu rng b= 16.5(m) Chiu cao: H = 3.3(m); din tch: S= 447.15 (m2) 2 Trn : vng kem H s phn x trn: tr= 0.7 Tng: vng nht H s phn x tng: tg= 0.5 Sn : gch H s phn x sn : lv= 0.3 3 ri yu cu : Etc= 150 (lx) 4 Chn h chiu sng : chung u 5 Chn khong nhit mu :Tm= 3000 (0K) theo th ng cong Kruithof. 6 Chn bng n loi : Q-FL 40S.W (T10) Ra= 74 Pm=40(w) =3000 (lm) Tm=3000 (0K)

7 Chn b n : FLI-240 hiu sut :100% S n/b : 2 quang thng cc bng/1b : 6000 (lm) 8 Phn b cc b n : cch trn h= 0 (m); b mt lm vic: 0.8 (m) Chiu cao lp n so vi b mt lm vic : htt= 2.5 (m)

9 Ch s a im : )( bah

abKtt

= 4.1

10 H s b : d =1.25

11 T s treo : tthh

hj '' =0

12 H s s dng : U=1.08

13 Quang thng tng : U

SdEtctong =77630.2 (lm)

14 Xc nh s b n :bocacbong

tongbodenN

1/ =13 (b)

Chn s b n : Nboden=13



15 Kim tra sai s quang thng :

%100..

% 1/tong

tongbocacbongbodenN

= 0.47%

Kt lun : tha yu cu 16 Kim tra ri trung bnh trn b mt lm vic :

Sd

UNE bocacbongbodentb

.. 1/ = 150.71 (lx)

Do cch b tr ca mt bng xy dng nn ta chia bi gi xe nay thnh 2 vng. Nhng yu cu v chiu sng v cch b tr cc phn hon ton tng t nhau nn tnh gn ng ta c :

Vng 2: Kch thc: chiu di a = 25.2 (m); chiu rng b= 10.5 (m) Chiu cao H = 3.3 (m); din tch S= 264.6 (m2) = > S b n cn b tr cho vng ny l: Nb n= 8(b) S b n cn b tr cho nh gi xe 1 l: N= 21(b) vi Pb=80(w) Nh gi xe 2: Kch thc: chiu di a = 16 (m); chiu rng b= 5.6 (m) Chiu cao H = 3.3 (m); din tch S= 89.6 (m2) Chn bng n loi : Q-FL 40S.W (T10) Ra= 74 Pm=40(w) =3000 (lm) Tm=3000 (0K)

Chn b n : FLI-240 hiu sut :100% S n/b : 2 quang thng cc bng/1b : 6000 (lm) S b n cn b tr cho nh gi xe 2 l: N= 3(b) vi Pb=80(w)

Tnh ton tng t cho cc phn cn li. 2) Tnh chiu sng cho tng 1:

Gm 2 phng community room, building manager room, fire control room, generator room, maintenance store, tech room, lobby.



Community room 1: d dng cho vic thit k ta chia Community room 1 ra nhiu vng nh: Vng 1: 1 Kch thc : chiu di: a =5.94(m); chiu rng b= 4.2(m) Chiu cao: H = 3.3(m); din tch: S= 25 (m2) 2 Trn : vng kem H s phn x trn: tr= 0.7 Tng: vng nht H s phn x tng: tg= 0.5 Sn : gch H s phn x sn : lv= 0.3 3 ri yu cu : Etc= 300 (lx) 4 Chn h chiu sng : chung u 5 Chn khong nhit mu :Tm= 4000 (0K) theo th ng cong Kruithof. 6 Chn bng n loi : FL18 - T8 Deluxe Ra=80 Pb n=18(w) n= 1300 (lm) Tm= 4000 (0K) 7 Chn b n : loi PRFL 218 hiu sut:100% S n/b

:2 quang thng cc bng/b :2600(lm) 8 Phn b cc b n : cch trn h= 0 (m); b mt lm vic: 0.8 (m) Chiu cao lp n so vi b mt lm vic : htt= 2.5 (m)


abKtt

= 0.98

10 H s b : d =1.25

11 T s treo : tthh

hj '' =0

12 H s s dng : U=0.71

13 Quang thng tng : U

SdEtctong =13204.22 (lm)




tongbodenN

1/ =5 (b)

Chn s b n : Nboden=5 15 Kim tra sai s quang thng :

%100..

% 1/tong

tongbocacbongbodenN

= -1.54%

Kt lun : tha yu cu 16 Kim tra ri trung bnh trn b mt lm vic :

Sd

UNE bocacbongbodentb

.. 1/ = 295.36 (lx)

Do cch b tr ca mt bng xy dng nn ta chia phng ny thnh 3 vng. Nhng yu cu v chiu sng v cch b tr cc phn hon ton tng t nhau nn tnh gn ng ta c :

Vng 2: Kch thc: chiu di a = 8.91 (m); chiu rng b= 4.2 (m) Chiu cao H = 3.3 (m); din tch S= 37.42 (m2) Chn bng n loi : FL18 - T8 Deluxe Ra=80 Pb n=18(w) n= 1300 (lm) Tm= 4000 (0K) Chn b n : loi PRFL 218 hiu sut:100% S n/b :2

quang thng cc bng/b :2600(lm)

= > S b n cn b tr cho vng ny l: Nb n= 7(b)

Vng 3: Chiu cao H = 3.3 (m); din tch S= 31.68 (m2) Chn bng n loi : FL18 - T8 Deluxe Ra=80 Pb n=18(w) n= 1300 (lm) Tm= 4000 (0K)



Chn b n : loi PRFL 218 hiu sut:100% S n/b :2 quang thng cc bng/b :2600(lm)

= > S b n cn b tr cho vng ny l: Nb n=6 (b) s b n cn b tr cho Community room1 l Nb n=18 (b) Lift lobby : Kch thc: chiu di a = 8.325 (m); chiu rng b= 2.2 (m) Chiu cao H = 3.3 (m); din tch S= 18.32 (m2)

Ta tnh ton theo sut ph ti chiu sng.Sut ph ti chiu sng hnh lang l : P0=7(w/m2).

Tng cng sut cn cp chiu sng cho Lift Lobby l: P= P0* S=7 * 18.32=128.24(w)

Chn n: DULUX EL 15w/41-827 E27 Pn=15(w) n=900 (lm) Loi : RDV118 s n / b =1 cng sut: P=15(w) E27 Vy s b n cn lp l: Nbden=P/Pb n=128.24/15=8(b) tnh ton tng t cho phn cn li.

3) Tnh chiu sng cho cn h tng 2-21: Apartment 3C : Gm 3 phng ng, 1 phng khch, nh bp, 2 toilet, ban cng a) Phng ng 1:c din tch S=12(m2) n chiu sng: Ta b tr 3 b n cng sut 40(w) Chn n: Q-FL 40S.W (T10) Ra= 74 Pn=40(w) n=3000 (lm) Tm=3000 (0K)

Chn b n: FLI-140 S n/b :1 Quang thng cc bng/1b :3000 (lm), Pb n=40(w) N=3(b)



n ng:chn b n ng c cng sut P=20(W) b) Phng ng 2: c din tch S=11(m2) n chiu sng: Ta b tr 3 b n cng sut 40(w) Chn n: Q-FL 40S.W (T10) Ra= 74 Pn=40(w) n=3000 (lm) Tm=3000 (0K)

Chn b n: FLI-140 S n/b :1 Quang thng cc bng/1b :3000 (lm), Pb n=40(w) N=3(b) n ng:chn b n ng c cng sut P=20(W) c) Phng ng 3: c din tch S=18(m2) n chiu sng: Ta b tr 4 b n cng sut 40(w) Chn n: Q-FL 40S.W (T10) Ra= 74 Pn=40(w) n=3000 (lm) Tm=3000 (0K) Chn b n: FLI-140 S n/b :1 Quang thng cc bng/1b :3000 (lm), Pb n=40(w) N=4 (b) n ng: chn b n ng c cng sut P=20(W) d) Phng khch:c din tch S=23(m2) n chiu sng: ta b tr 5 b n c cng sut 40(w) Chn n: Q-FL 40S.W (T10) Ra= 74 Pn=40(w) n=3000 (lm) Tm=3000 (0K)

Chn b n: FLI-140 S n/ b :1 Quang thng cc bng/b :3000 (lm), Pb n=40(w) N=5(b) n trang tr: Chn b n CCH2139-6 E27 6x60w Cht liu Stone Brass Chn bng n: A60 E27 P=60(w) n=3000(lm)



cng sut b n Pb n=360(w) e) Nh bp: c din tch S=7 (m2). ta b tr 2 b n chiu sng Loi n : DULUX EL 15w/41-827 E27 Pn=15(w) =900 (lm) B n : CDH802/W- FGL s n / b =2 Pb =30(w) E27 N=2(b) f) Toilet: : Toilet 1 c din tch S=5(m2) Toilet 2 c din tch S=5.5(m2)

mi Toilet ta b tr 1 b n chiu sng. Chn n: Osram DULUX D 26w/41-827 Pn=26(w) =1800 (lm)

Loi : AF41514 s n / b =1 cng sut: P=26(w) Ntoilet=2(b)

g) Ban cng: ta b tr 1 b n chiu sng. Chn n: DULUX EL 15w/41-827 E27 Pn=15(w) =900 (lm) Loi : RDV118 s n / b =1 cng sut: P=15(w) E27 N=1(b) h) Khng gian cn li v cc li i: c din tch S=21(m2) Ta b tr 9 b n c cng sut P=18(w) cho khng gian trn. Chn bng n : FL18 - T8 Deluxe Ra=80 Pn=18(w) n= 1300 (lm) Tm= 4000 (0K)

Chn b n: loi AST 1818 Hiu sut:100% s n/ b:1 quang thng cc bng/1b :1300 (lm). Pb n=18(w) N=9(b)

Chiu sng ngoi cn h (tng 2 ): a) Cu thang: cu thang ta b tr 1 b n chiu sng

Chn bng n: : Q-FL 20S.W Ra=74 Pn=20(w) n=1200 (lm) Tm=3000 (0K)

Chn b n: loi FLI-120 hiu sut:100% s n/b :1 cng sut b n: 20(w) quang thng cc bng/b :1200 (lm).



b) Lift lobby:

1 Kch thc : chiu di:a =15.12(m); chiu rng b= 2.84(m) Chiu cao: H = 3.3(m); din tch: S= 42.94 (m2) 2 Trn : vng kem H s phn x trn: tr= 0.7 Tng: vng nht H s phn x tng: tg= 0.5 Sn : gch H s phn x sn : lv= 0.3 3 ri yu cu : Etc= 200 (lx) 4 Chn h chiu sng : chung u 5 Chn khong nhit mu :Tm= 3000 (0K) theo th ng cong Kruithof. 6 Chn bng n loi : DULUX D 18W/41-827 Ra= 80 Pm=18 (w) =1200 (lm) Tm=3000 (0K)

7 Chn b n : : CDH802/W- FGL hiu sut :100% S n/b : 2 quang thng cc bng/1b : 2400 (lm) 8 Phn b cc b n : cch trn h= 0 (m); b mt lm vic: 0.8 (m) Chiu cao lp n so vi b mt lm vic : htt= 2.5 (m)


abKtt

= 0.96

10 H s b : d =1.25

11 T s treo : ' 0' tt

hjh h

12 H s s dng : U=0.7 13 Quang thng tng :

USdEtc

tong =15335.71 (lm)


tongbodenN

1/ =6 (b)

Chn s b n : Nboden=6 15 Kim tra sai s quang thng :

/1.

% .100% 6.1%boden cacbong bo tongtong

N

Kt lun : tha yu cu



16 Kim tra ri trung bnh trn b mt lm vic :

/1. .

188( ux)boden cacbong botbN U

E lSd

tnh ton tng t cho cc cn h cn li cc tng cn li, ta c bng thng k chiu sng sau: Bng 1.1

Tng V tr chiu sng

Bng n S b n

Tng cng

sut(KW)

Loi Quang thng(lm)

Loi mng n

M hiu sn phm

Hm Nh gi xe 1

Hunh quang 40W

3000 2 bng Q-FL 40S.W (T10)

21 2.016

Nh gi xe 2

Hunh quang 40W

3000 2 bng Q-FL 40S.W (T10)

3 0.288

Phng my bm

Hunh quang 40W

3000 1 bng Q-FL 40S.W (T10)

6 0.288

Phng my bm nc thi

Hunh quang 20W

1200 2 bng Q-FL 20S.W (T10)

3 0.144

Phng my pht

Hunh quang 40W

3000 1 bng Q-FL 40S.W (T10)

3 0.144

P.My bin p

Hunh quang 40W

3000 2 bng Q-FL 40S.W (T10)

2 0.192

P. cha du

Hunh quang 40W

3000 2 bng Q-FL 40S.W (T10)

1 0.096

Hnh lang Compact Hunh quang

15W

900 1 bng EL 15w/41-827 E27

9 0.162

Cc li i n cao p 150w

14000 1 bng MH-ED 150W/642

8 1.2

Exit 8W 1 bng 2 0.016

Emergency

2x20W 2 bng 15 0.6

Tng cng sut chiu sng tng hm 5.37 Tng 1 Communit

y room 1 Hunh quang

18w 1300 2 bng FL18 - T8

Deluxe 18 0.7776

Community room 2

Hunh quang 18w

1300 2 bng FL18 - T8 Deluxe

10 0.432

Building manager

Hunh quang 18w


4 0.1728



room

Fire control room

Hunh quang 40W

3000 2 bng Q-FL 40S.W (T10)

1 0.096

Generator room

Hunh quang 40w

3000 1 bng Q-FL 40S.W (T10)

7 0.336

Maintenace store

Hunh quang 20w

1200 2 bng Q-FL 20S.W (T10)

3 0.144

Tech room

Hunh quang 36W


2 0.1728

Cu thang Hunh quang 20w

1200 2 bng Q-FL 20S.W (T10)

10 0.48

Toilet Huynh quang compact 18w

1200 1 bng EL 18w/41-827 E27

1 0.0216

Lobby Huynh quang compact 15w

900 1 bng EL 15w/41-827 E27

21 0.378

Soffit area Huynh quang compact 26w

1800 2 bng D 26w/41-827 20 1.248

Exit 3W 8 bng PEXA13RW 8 0.024

Emergency

36W 10 bng 10 0.36

Tng cng sut chiu sang tng 1 4.6428 Tng 2

Apartment

2A Hunh quang

40W 3000 1 bng Q-FL 40S.W

(T10) 12 0.576

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

Hunh quang 18w


7 0.1512

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 20w 2 0.04 Apartment

2B

Hunh quang 40W

3000 1 bng Q-FL 40S.W (T10)

12 0.576

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 900 1 bng EL 15w/41- 1 0.018



15W 827 E27

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

Hunh quang 18w


7 0.1512

n trang tr 60w 6 bng A60 - E27 1 0.36


1A

Hunh quang 40W

3000 1 bng Q-FL 40S.W 8 0.384

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 26W

1800 1 bng DULUX D 26w/41-827

1 0.0312

Hunh quang 18w


6 0.1296

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 20w 0.02 Apartment

1D Hunh quang

40W 3000 1 bng Q-FL 40S.W

(T10) 8 0.384

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 26W

1800 1 bng DULUX D 26w/41-827

1 0.0312

Hunh quang 18w


6 0.1296

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 20w 0.02 Apartment

1B Hunh quang

40W 3000 1 bng Q-FL 40S.W

(T10) 9 0.432

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 26W

1800 1 bng DULUX D 26w/41-827

1 0.0312

Hunh quang 18w


5 0.108

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 1 0.02 Apartment Hunh quang 3000 1 bng Q-FL 40S.W 8 0.384



1C 40W (T10)

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 26W

1800 1 bng DULUX D 26w/41-827

1 0.0312

Hunh quang 18w


4 0.0864

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 1 0.02 Apartment

3C Hunh quang

40W 3000 1 bng Q-FL 40S.W 15 0.72

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

Hunh quang 18w


9 0.1944

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 3 0.06 Chiu sang ngoi cn

h nh quang 18w 1200 1 Q-FL 20S.W 1 0.0216 ompact 18w 1200 2 DULUX D

18W/41-827 6 0.2592

8.0164

Tng cng sut chiu sang tng 2 8.2972 Tng

11 Apartment

2A

Hunh quang 40W

3000 1 bng Q-FL 40S.W (T10)

12 0.576

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

Hunh quang 18w


7 0.1512

n trang tr 60w 6 bng A60 - E27 1 0.36




2B

Hunh quang 40W

3000 1 bng Q-FL 40S.W (T10)

12 0.576

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

Hunh quang 18w


7 0.1512

n trang tr 60w 6 bng A60 - E27 1 0.36


3A

Hunh quang 40W

3000 1 bng Q-FL 40S.W 17 0.816

n compact 15W

900 2 bng EL 15w/41-827 E27

3 0.108

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

Hunh quang 18w


7 0.1512

n trang tr 60w 6 bng A60 - E27 1 0.36


3B

Hunh quang 40W

3000 1 bng Q-FL 40S.W 18 0.864

n compact 15W

900 2 bng EL 15w/41-827 E27

3 0.108

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

Hunh quang 18w


7 0.1512

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 20w 3 0.06 Apartment Hunh quang 3000 1 bng Q-FL 40S.W 15 0.72



3C

40W

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

Hunh quang 18w


9 0.1944

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 3 0.06 Chiu sng ngoi cn

h nh quang 18w 1200 1 Q-FL 20S.W 1 0.0216 compact 18w 1200 2 DULUX D

18W/41-827 6 0.2592

7.2452

Tng cng sut chiu sng tng 11 7.526 Tng

21 V 21

Lng

Apartment 3D-A

Hunh quang 40W

3000 1 bng Q-FL 40S.W 12 0.576

n compact 15W

900 2 bng EL 15w/41-827 E27

2 0.072

n Compact 18w

1200 1 bng EL 18w/41-827 E27

1 0.0216

n compact 26W

1800 1 bng DULUX D 26w/41-827

2 0.0624

n compact 15W

900 1 bng EL 15w/41-827 E27

1 0.018

Hunh quang 18w


13 0.2808

n trang tr 60w 6 bng A60 - E27 1 0.36

Hunh quang 40W

3000 1 bng Q-FL 40S.W 20 0.96

n Compact 18w

1200 2 bng EL 18w/41-827 E27

3 0.1296

n trang tr 60w 6 bng A60 - E27 1 0.36

n ng 5 0.1 Chiu sng ngoi cn

h nh quang 18w 1200 2 bng Q-FL 20S.W 6 0.2592 nh quang 20w 1200 2 Q-FL 20S.W 1 0.048



Exit 8W 1 bng 2 0.016

Emergency 1x20W 1 bng 5 0.1

Tng cng sut chiu sng tng 21 Tng

k Thut

Phng k thut

Hunh quang 36w


3 0.2592

Cu thang

Hunh quang 40w

3000 1 bng Q-FL 40S.W (T10)

2 0.096

Hnh lang

Hunh quang 40w

3000 2 bng Q-FL 40S.W (T10)

19 1.824

Tng cng sut chiu sng tng k thut



Chng 2: Tnh ton ph ti thun tin trong vic tnh ton ph ti ta chia chung c ny ra lm nhiu phn: - Tng hm : 2 nh gi xe, 1 phng my bm, 1 phng my bin p, 1 phng my pht, 1 bn du, 1 phng my bm nc thi. - Tng 1: 2 community room, building manager room, fire control room, generator room, maintenance store, tech room, cu thang, toilet, lobby, soffit area. - Tng 2-10: gm 7 cn h AP-2A, AP-2B, AP-1A, AP-1B, AP-1C, AP-1D, AP-3C

AP-2A v AP-2B: Gm 2 phng ng,1 phng khch ,2 toilet, ban cng,nh bp. AP-1A, AP-1B, AP-1C v AP-1D : Gm 1 phng ng,1 phng khch, nh bp, 1

toilet.

AP-3C : Gm 3 phng ng, 1 phng khch, nh bp, 2 toilet, ban cng. - Tng 11-20: gm 5 cn h AP-2A, AP-2B, AP-3A, AP-3B, AP-3C.

AP-2A v AP-2B : Gm 2 phng ng,1 phng khch ,2 toilet, ban cng,nh bp. AP-3A, AP-3B, AP-3C: Gm 3 phng ng, 1 phng khch, nh bp, 2 toilet, ban

cng.

- Tng 21 v 21 lng: gm 4 cn h AP-3D-A, AP-3D-B, AP-3D-C, AP-3D-D. Mi cn h gm 2 phn:

Phn trt : Gm 2 phng ng, phng khch, nh bp, 3 toilet. Phn lng: Gm 3 phng ng,phng khch, phng sinh hot, 2 toilet.

I) Tng hm : 1) Xc nh ph ti chiu sng v cm cho tng hm:

n hunh quang m trn 2x40w, cng sut b n 80w vi cos=0.95, tg=0.33 Ptt=Pb n+ Pballast=80+ (80*20/100)=96(w)

Qtt=Ptt tg=96*0.33=31.68(var) S= 101(VA)


Qtt=Ptt tg=48*0.33=15.84(var) S= 50.5(VA)


Qtt=Ptt tg=48*0.33=15.84(var)



S= 50.5(VA)

n hunh quang compact m trn 1x15w, cng sut b n 15w vi cos=0.95, tg=0.33 Ptt=Pb n+ Pballast=15+ (15*20/100)=18(w)

Qtt=Ptt tg=48*0.33=5.94(var) S= 18.95(VA)

n cao p 150w, cng sut b n 150w vi cos=1, tg=0 Ptt=150w

S= 150(VA)

S dng cm i 3 chu 10/16A/220V vi cos=1 Poc=UI cos=220*10*1=2200(w) Do dng cm i nn Pb oc=2200*2=4400(w)

Ta c Ptt oc=ksd*kt*Pb oc

Vi ksd=0.7 v kt=0.2 Ptt oc=0.7*0.2*4400=616(w) S=616(VA)

Ta dng 25 b cm i 3 chu 10/16A/220V cho tng hm. Tnh cng sut ca mt my lnh bt k, chng hn ta chn loi:

My lnh 2HP c cng sut tiu th in l: P=1.94(KW) cos = 0.8, = 0.9, Ksd = 0.8, Kt = 1

Pttb/tn= Ptb *Kdt*Ksd = 0.8*1*1.94

0.9= 1.72 (KW)

Stt= 2.15 (KVA)

Tnh ton tng t ta c bng t in cho tng hm: Bng 2.1

Ph ti S lng cos tg

Cng sut (VA) CS tng (VA) Pha A Pha B Pha C

n hunh quang 2x40w

21 0.95 0.33 2121



n hunh quang 2x40W

3 0.95 0.33 303

n hunh quang 1x40 W

6 0.95 0.33 303

n hunh quang 2x20 W

3 0.95 0.33

151.5

n hunh quang 1x40 W

3 0.95 0.33 151.5

n hunh quang 2x40 W

2 0.95 0.33 202

n hunh quang 2x40 W

1 0.95 0.33 101

n hunh quang compact 1x15w

9 0.95 0.33 171

n cao p 1x150w 8 1 1200 cm i 3 chu

10/16A/220V 25 1 15400

Chiu sng khn cp 2x20w 15 600

D phng 13163 Tng 33865

Vy tng cng sut ta chn l : Stng hm=33865(VA) H s ng thi l kt=1 cng sut tnh ton cho tng hm l S=33.865(KVA)

Costb = .cosdmi i

dmi

P

S

=

0.95*3504 1120 15400 600 1316333865

=0.99



Bng chia pha cho ph ti tng hm Bng 2.2 Tng hm

Ti tiu th U Cng sut lm vic (VA) Dng lm vic ti Ib(A)A B C A B C

Chiu sng tng hm 220 5304 24.11

12 cm 220 7392 33.6

13 cm 220 8008 36.4

D phng 220 4387 4387 4387 19.94 19.94 19.94

Tng Stng hm Itng hm 9691 11779 12395 44.05 53.54 56.34

Kt 1 1

Cng sut v dng in tnh ton hm

Stt hm Itt hm

9691 11779 12395 44.05 53.54 56.34

2) Xc nh ph ti my bm nc thi: C 4 t in my bm nc thi. Mi t gm 2 my bm. Mi my bm c cng sut Pm=7.5(kw), cos=0.83, 85% , ksd=0.8, kt=0.95

Ptt = n*Ptb *Kdt*Ksd = 0.8*0.95*7.5*2

0.85=13.5(KW)

Stt=16 (KVA)

3) Xc nh ph ti bm x l nc thi: Gm 4 my bm. Mi my c cng sut P=18.5(KW), cos=0.86, 89% , ksd=0.8, kt=0.85

Ptt = n*Ptb *Kdt*Ksd = 0.8*0.85*18.5* 4

0.89=56.5(KW)

Stt=65.5KVA)



4) Xc nh ph ti qut gi thi: Gm 2 qut, mi qut c cng sut P=10(KW), cos=0.85, 86% , ksd=0.8, kt=0.95 Ptt =

n*Ptb *Kdt*Ksd = 0.8*0.95*10* 20.86

=17.7(KW)

Stt=21(KVA)

5) Xc nh ph ti bm du: Gm 1 my bm. Mi my c cng sut P=11(KW), cos=0.86, 87% , ksd=0.8, kt=1 Ptt =

n*Ptb *Kdt*Ksd = 0.8*1*11*10.87

=10.1(KW)

Stt=12(KVA)

6) Xc nh ph ti bm lc: Gm 3 my bm, mi my bm c cng sut P=11 (KW), cos=0.86, 87% , ksd=0.8, kt=0.9

Ptt = n*Ptb *Kdt*Ksd = 0.8*0.9*11*3

0.87=27.3(KW)

Stt=32(KVA)

7) Xc nh ph ti t bm tng p : Gm 3 my bm, mi my bm c cng sut P=7.5 (KW), cos=0.83, 85% , ksd=0.8, kt=0.9

Ptt = n*Ptb *Kdt*Ksd = 0.8*0.9*7.5*3

0.85=19(KW)

Stt=23(KVA)

8) Xc nh ph ti tnh ton cho bm trung chuyn: Gm 8 my bm, mi my bm c cng sut P=15 (KW), cos=0.86, 88% , ksd=0.8, kt=0.78

Ptt = n*Ptb *Kdt*Ksd = 0.8*0.78*15*8

0.88=85(KW)

Stt=100(KVA)

9) Xc nh ph ti tnh ton cho bm cha chy: Gm 2 my bm c cng sut P=140 (KW), cos=0.87, 94% , ksd=0.8, kt=0.95



Ptt = n*Ptb *Kdt*Ksd = 0.8*0.95*140* 2

0.94=226.4(KW)

Stt=260(KVA)

Bng 2.3

Ph ti S lng

cos Ksd Kt Cng sut (VA) CS tng

(KVA) Pha A Pha B Pha C

Bm nc thi 7.5KW 2 0.85 0.83

0.8 0.95 16

Bm nc thi 7.5KW 2 0.85 0.83

0.8 0.95 16

Bm nc thi 7.5KW 2 0.85 0.83

0.8 0.95 16

Bm nc thi 7.5KW 2 0.85 0.83

0.8 0.95 16

Bm x l nc thi 18.5KW

4 0.89 0.86 0.8 0.85

65.5

Qut gi thi 10KW

2 0.86 0.85 0.8 0.95

21

Bm du 11KW

1 0.87 0.86 0.8 1

12

Bm lc 11KW

3 0.87 0.86 0.8 0.9

32

Bm tng p 7.5KW

3 0.85 0.83 0.8 0.9

23

Bm trung chuyn 15KW

8 0.88 0.86 0.8 0.78

100

Bm cha chy 140KW

2 0.94 0.87 0.8 0.95

260

Tng thanh ci 577.5

Cng sut tng l S=577.5(KVA)



Vi h s ng thi l kt=0.63 Cng sut tnh ton thanh ci 1 l Stt thanh cai1=0.63*577.5=363.825(KVA)

Costb = .cosdmi i

dmi

P

S

=

496.43577.5

=0.86

II) Tng 1: Tnh ton nh trn tng hm ta c:

Bang 2.4

Ph ti S lng cos tg

Cng sut (VA) CS tng (VA) Pha A Pha B Pha C

n hunh quang 2x18w

18 0.95 0.33 819

n hunh quang 2x18W

10 0.95 0.33 455

n hunh quang 1x40 W

6 0.95 0.33 303

n hunh quang 1x18 W

8 0.95 0.33

182

n hunh quang 2x40 W

1 0.95 0.33 101

n hunh quang 1x40 W

7 0.95 0.33 354

n hunh quang 2x20 W

3 0.95 0.33 152

n hunh quang 2x36w

2 0.95 0.33 182

n hunh quang 2x20w

10 0.95 0.33 505



Huynh quang compact 1x18w

1 0.95 0.33 23


21 0.95 0.33 398


20 0.95 0.33 1314

Chiu sng khn cp 1x36w 10 360

cm i 3 chu 10/16A/220V

20 1 12320

cm i 3 chu 10/16A/220V

13 1 8008

My lnh cng sut 6.5HP(P=6.7KW)

1 0.9 0.8 7444

My lnh cng sut 3HP(P=3.2KW)

1 0.9 0.8 3555

My lnh cng sut 1.5HP(P=1.3KW)

1 0.9 0.8 1444

My lnh cng sut 2HP(P=1.94)

1 0.9 0.8 2155

D phng 13161 Tng 52717

Vy tng cng sut ta chn l : Stng 1=52717(VA)

Costb = .cosdmi i

dmi

P

S

=

49660.852717

=0.94

H s ng thi l kt=1 cng sut tnh ton cho tng 1 l S=52.717(KVA)

Bng chia pha cho ph ti tng 1 Bng 2.5



Tng 1 Ti tiu th U Cng sut lm vic (VA) Dng lm vic ti Ib(A)

A B C A B C

Chiu sng tng 1 220 5148 23.4

20 cm 220 12320 56

13 cm 220 8008 36.4

My lnh 6.5HP 220 7444 33.83

My lnh 1.5HP 220 1444 6.56

My lnh 2HP 220 2155 9.79

My lnh 3HP 220 3555 16.15

D phng 220 4387 4387 4387 19.94 19.94 19.94

Tng Stng hm Itng hm 17543 16707 18467 79.74 75.94 83.94

Kt 1 1

Cng sut v dng in tnh ton hm

Stt 1 Itt 1 17543 16707 18467 79.74 75.94 83.94

III) Tng 2-10: Ta ch tnh ton cho tng 2, cc tng cn li tng t vy. Tnh ton ph ti cm: S dng cm i 3 chu 10/16A/220V vi cos=1

Poc=UI cos=220*10*1=2200(w) Do dng cm i nn Pb oc=2200*2=4400(w)

Ta c Ptt oc=ksd*kt*Pb oc

Vi ksd=0.8 v kt=0.2 Ptt oc=0.8*0.2*4400=704(w) S=704(VA)



1) Apartment 1A: Bng2.6

Loai cn h Tn thit b

S lng cos ksd

Cng sut (VA)

n Hunh quang 1x40w 8 1 0.95 1 404 n compact 2x15w 2 1 0.95 1 76 n compact 1x26w 1 1 0.95 1 33

n Hunh quang 1x18w 6 1 0.95 1 136 n trang tr 6x60w 1 1 1 1 360

n ng 20w 1 20 Qut 55w 2 0.9 0.8 0.8 122

T lnh 110w 1 0.9 0.8 1 152 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 2 1 1 1 300

Qut trn 110w 2 0.9 0.8 0.8 245 My nc nng 2500w 1 0.9 0.8 0.8 2778

My lnh 3HP (P=3.2KW)

1 0.9 0.8 0.8 3555

cm i 3 chu 10/16A/220V

8 1 1 0.8 5632

Tng cng sut AP-1A 16514

Costb = .cosdmi i

dmi

P

S

=

14730.9516514

= 0.89

H s ng thi kt=0.6 Stt 1A=9.9084(KVA)

2) Apartment 1D: ging apartment 1A nn ta c Stt 1D=9.9084(KVA)

3) Apartment 1B:



Bng 2.7

Loi cn h Tn thit b

S lng cos ksd

Cng sut (VA)



n ng 20w 1 20 Qut 55w 2 0.9 0.8 0.8 122

T lnh 110w 1 0.9 0.8 1 152 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 2 1 1 1 300


My lnh 3HP 1 0.9 0.8 0.8 3555 cm i 3 chu

10/16A/220V 8 1 1 0.8 5632

Tng cng sut AP-1B 16543

H s ng thi kt=0.6 Stt 1B=9.9258(KVA) 4) Apartment 1C:

Bng 2.8 Loi

cn h Tn thit b S

lng cos ksd Cng sut

(VA)

n Hunh quang 1x40w 8 1 0.95 1 404 n compact 2x15w 2 1 0.95 1 76



n compact 1x26w 1 1 0.95 1 33 n Hunh quang 1x18w 4 1 0.95 1 91

n trang tr 6x60w 1 1 1 1 360 n ng 20w 1 20

Qut 55w 2 0.9 0.8 0.8 122 T lnh 110w 1 0.9 0.8 1 152 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 2 1 1 1 300


My lnh 3HP 1 0.9 0.8 0.8 3555 cm i 3 chu

10/16A/220V 8 1 1 0.8 5632

Tng cng sut AP-1C 16469

H s ng thi kt=0.6 Stt 1C=9.8814(KVA)

5) Apartment 2A:

Bng 2.9 Loi

cn h Tn thit b S

lng cos ksd Cng sut

(VA)



n ng 20w 2 40 Qut 55w 3 0.9 0.8 0.8 183

T lnh 110w 1 0.9 0.8 1 152



My git 500w 1 0.9 0.8 0.8 556 Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 3 1 1 1 450



1 0.9 0.8 0.8 3555

My lnh 1.5HP (P=1.3 KW)

1 0.9 0.8 0.8 1444

cm i 3 chu 10/16A/220V

11 1 1 0.8 7744


Costb = .cosdmi i

dmi

P

S

=

18627.820766

=0.9


6) Apartment 2B: ging apartment 2A nn ta c: Stt 2B=12.4596(KVA)

7) Apartment 3C:

Bng 2.10 Loi

cn h Tn thit b S

lng cos ksd Cng sut

(VA)



n ng 20w 3 60



Qut 55w 4 0.9 0.8 0.8 245 T lnh 110w 1 0.9 0.8 1 152 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 4 1 1 1 600



1 0.9 0.8 0.8 3555

My lnh 1.5HP (P=0.1.3KW)

1 0.9 0.8 0.8 1444

My lnh 1.5HP (P=0.1.3KW)

1 0.9 0.8 0.8 1444

cm i 3 chu 10/16A/220V

13 1 1 0.8 9152

Tng cng sut AP-3C 24253

Costb = .cosdmi i

dmi

P

S

=

21741.5524253

= 0.9

H s ng thi kt=0.56 Stt 3C=13.5817(KVA)

ta c Stng 2=Stt 2A+ Stt 2B+ Stt 1A+ Stt 1B+ Stt 1C+ Stt 1D+ Stt 3C=78.1249(KVA)

Costb = .cosdmi i

dmi

P

S

=0.9

Ta c h s ng thi kt=0.78 Nn ta tnh c Stt tng 2= 60.94(KVA)

Bng chia pha cho cc cn h trong t in tng 2



Bng 2.11 DB1-2

Ti tiu th U Cng sut lm vic (KVA) Dng lm vic ti Ib(A)A B C A B C

AP 1A 220 9.9084 45.04

AP 1B 220 9.9258 45.11

AP 1C 220 9.8814 44.9

AP2A 220 12.4596 56.63

AP 2B 220 12.4596 56.63

AP 1D 220 9.9084 45.04

AP 3C 220 13.5817 61.73

Tng Stng Ib tng 29.7156 24.9192 23.4901 135.05 113.26 106.77

Kt 0.78 0.78

Cng sut v dng in tnh ton tng

Stt tng 2 Ib tt tng 2

23.178 19.437 18.322 105.34 88.34 83.28

Bng chia pha cho cc cn h trong t in tng 3 Bng 2.12

DB1-3


AP 1A 220 9.9084 45.04

AP 1B 220 9.9258 45.11

AP 1C 220 9.8814 44.9

AP2A 220 12.4596 56.63

AP 2B 220 12.4596 56.63



AP 1D 220 9.9084 45.04

AP 3C 220 13.5817 61.73

Tng Stng Ib tng 23.4901 29.7156 24.9192 106.77 135.05 113.26

Kt 0.78 0.78



18.322 23.178 19.437 83.28 105.34 88.34

Bng chia pha cho cc cn h trong t in tng 4 Bng 2.13

DB1-4


AP 1A 220 9.9084 45.04

AP 1B 220 9.9258 45.11

AP 1C 220 9.8814 44.9

AP2A 220 12.4596 56.63

AP 2B 220 12.4596 56.63

AP 1D 220 9.9084 45.04

AP 3C 220 13.5817 61.73

Tng Stng Ib tng 24.9192 23.4901 29.7156 113.26 106.77 135.05

Kt 0.78 0.78



19.437 18.322 23.178 88.34 83.28 105.34

Lm tng t cho cc tng 5-10 cn bng ti trn 3 pha.



IV) Tng 11-20: Ta ch tnh cho tng 11, cc tng cn li th tng t vy. 1) Apartment 2A: tnh trn Stt 2A=12.4596 (KVA)

2) Apartment 2B: tnh trn Stt 2B=12.4596 (KVA)

3) Apartment 3A:

Bng 2.14 Loi

cn h Tn thit b S

lng cos ksd Cng sut

(VA)



n ng 20w 3 60 Qut 55w 4 0.9 0.8 0.8 245

T lnh 110w 1 0.9 0.8 1 152 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 4 1 1 1 600


My lnh 3HP 1 0.9 0.8 0.8 3555 My lnh 1.5HP 1 0.9 0.8 0.8 1444 My lnh 1.5HP 1 0.9 0.8 0.8 1444 cm i 3 chu

10/16A/220V 13 1 1 0.8 9152





4) Apartment 3B: Bng2.15Loi

cn h Tn thit b S

lng cos ksd Cng sut

(VA)



n ng 20w 3 60 Qut 55w 4 0.9 0.8 0.8 245

T lnh 110w 1 0.9 0.8 1 152 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 1600

Tivi 150w 4 1 1 1 600


My lnh 3HP 1 0.9 0.8 0.8 3555 My lnh 1.5HP 1 0.9 0.8 0.8 1444 My lnh 1.5HP 1 0.9 0.8 0.8 1444 cm i 3 chu

10/16A/220V 13 1 1 0.8 9152

Tng cng sut AP-3B 24398

H s ng thi kt=0.56 Stt 3B=13.6629(KVA) 5) Apartment 3C: nh trn Stt 3C=13.5817 (KVA)



ta c Stng 11=Stt 2A+ Stt 2B+ Stt 3A+ Stt 3B + Stt 3C=65.7981(KVA)

Costb = .cosdmi i

dmi

P

S

= 0.9

Ta c h s ng thi kt=0.8 Nn ta tnh c Stt tng 11= 53.64(KVA)

Bng chia pha cho cc cn h tng 11 Bng 2.16

DB1-11


AP 2A 220 12.4596 56.63

AP 3A 220 13.6343 61.97

AP 2B 220 12.4596 55.63

AP 3B 220 13.6629 62.1

AP 3C 220 13.5817 61.73

Tng Stng Ib tng 26.0939 26.1225 13.5817 117.6 117.73 61.73

Kt 0.8 0.8



20.875 20.898 10.865 94.08 94.18 49.38


DB1-12




AP 2A 220 12.4596 56.63

AP 3A 220 13.6343 61.97

AP 2B 220 12.4596 55.63

AP 3B 220 13.6629 62.1

AP 3C 220 13.5817 61.73

Tng Stng Ib tng 13.5817 26.0939 261225 61.73 117.6 117.73

Kt 0.8 0.8



10.865 20.875 20.898 49.38 94.08 94.18


DB1-13


AP 2A 220 12.4596 56.63

AP 3A 220 13.6343 61.97

AP 2B 220 12.4596 55.63

AP 3B 220 13.6629 62.1

AP 3C 220 13.5817 61.73

Tng Stng Ib tng 26.1225 13.5817 26.0939 117.73 61.73 117.6

Kt 0.8 0.8



20.898 10.865 20.875 94.18 49.38 94.08



Lm tng t cho cc tng 14-20 cn bng ti trn 3 pha V) Tng 21 v tng 21 lng: Gm 4 cn h 3D-A, 3D-B, 3D-C, 3D-D. ta ch tnh i din cn h 3D-A. cc cn cn li tng t. Bng 2.19

Loi cn h Tn thit b

S lng cos ksd

Cng sut (VA)


n Hunh quang 1x18w 17 1 0.95 1 386 n compact 2x18w 3 1 0.95 1 136 n trang tr 6x60w 2 1 1 1 720

n ng 20w 5 100 Qut 55w 6 0.9 0.8 0.8 367

T lnh 110w 2 0.9 0.8 1 304 My git 500w 1 0.9 0.8 0.8 556

Bp in 1000w 1 1 1 0.8 800 Bn i 1440w 1 0.9 0.8 0.8 3200

Tivi 150w 7 1 1 1 1050



1 0.9 0.8 0.8 3555


1 0.9 0.8 0.8 3555

My lnh 1.5HP P=1.3KW

1 0.9 0.8 0.8 1444

cm i 3 chu 10/16A/220V

21 1 1 0.8 14784

Tng cng sut AP-3D-A 38496



Costb = .cosdmi i

dmi

P

S

=

34635.4538496

= 0.9

H s ng thi kt=0.5 Stt 3D-A=19.248(KVA)

ta c Stng 21+lng=Stt 3D-A+ Stt 3D-B+ Stt 3D-C+ Stt 3D-D=76.992(KVA) Ta c h s ng thi kt=0.85 Nn ta tnh c Stt tng 21+lng= 65.45(KVA)

Bng chia pha cho cn h tng 21 v 21 lng: Bng 2.20

DB1-21


AP-3D -A 220 19.248 87.49

AP 3D B 220 19.248 87.49

AP 3D -C 220 19.248 87.49

AP 3D -D 220 19.248 87.49

Tng Stng Ib tng 19.248 19.248 38.496 87.49 87.49 174.98

Kt 0.85 0.85


Stt 21 Ib tt 21 16.36 16.36 32.72 74.36 74.36 148.72

tnh cng sut ca cc t in t tng 2 n tng 21 Stt 2-21 trn thanh Busway

S2-21=Stt 2-10+Stt 11-20 + Stt 21+lng=9*60.94 + 10*53.64 + 65.45 = 1150.31(KVA)



Costb = .cosdmi i

dmi

P

S

= 0.9

Ta c kt=0.62

Stt 2-21=720(KVA)

VI) Tng k thut: 1) Tnh Ph ti chiu sng,ph ti cm v lnh: Bng 2.21

Tng k

thut Tn thit b S

lng cos ksd Cng sut

(VA)

n Hunh quang 2x36w 3 1 0.95 1 273 n compact 1x40w 2 1 0.95 1 101 n compact 2x40w 19 1 0.95 1 1920 cm i 3 chu

10/16A/220V 16 1 1 0.8 11264

My lnh 2HP 1 0.9 0.8 0.8 1650 D phng 13161

Tng cng sut 28369

Costb = .cosdmi i

dmi

P

S

= 0.98

Bng Chia pha cho ti tng k thut Bang 2.22

Tng k thut Ti tiu th U Cng sut lm vic (VA) Dng lm vic ti Ib(A)

A B C A B C

Chiu sng tng k thut

220

2294 10.43

8 cm 220 5632 25.6



8 cm 220 5632 25.6

My lnh 1.5HP (P=1.3KW)

220 1444 6.56

D phng 220 4387 4387 4387 19.94 19.94 19.94

Tng 8331 10019 10019 37.87 45.54 45.54

Kt= 1 1 1 1 1 1


Stt tech Itt tech

8331 10019 10019 37.87 45.54 45.54

2) Xc nh ph ti t bm tng p : Gm 3 my bm, mi my bm c cng sut P=7.5 (KW), cos=0.83, 85% , ksd=0.8, kt=0.9

Ptt = n*Ptb *Kdt*Ksd = 0.8*0.9*7.5*3

0.85=19(KW)

Stt=23(KVA)

3) Xc nh ph ti t qut to p: Gm 2 qut, mi qut c cng sut P=22(KW), cos=0.86, 89% , ksd=0.8, kt=0.95 Ptt =

n*Ptb *Kdt*Ksd = 0.8* 0.95* 22* 20.89

=37.57(KW)

Stt=43(KVA)

4) Xc nh ph ti t c kh: Gm 3 ti, mi ti c cng sut P=7.5 (KW), cos=0.83, 85% , ksd=0.8, kt=0.9 Ptt =

n*Ptb *Kdt*Ksd = 0.8*0.9*7.5*30.85

=19(KW)

Stt=23(KVA)

5) Xc nh ph ti t thang my: Gm 3 my, mi my c cng sut P=45 (KW), cos=0.86, 91% , ksd=0.8, kt=0.9 Ptt =

n*Ptb *Kdt*Ksd = 0.8*0.9*45*30.91

=106.81(KW)

Stt=124(KVA)

Bng 2.23



Ph ti S lng

cos Ksd Kt Cng sut (VA) CS tng

(KVA) Pha A Pha B Pha C

Bm tng p 7.5kw

3 0.85 0.83 0.8 0.9

23

T c kh Ti 7.5kw 3 0.85 0.83

0.8 0.9 23

Qut to p 22kw

2 0.89 0.86 0.8 0.95

43

T thang may

45kw 3 0.91 0.86

0.8 0.95 124

D phng 42 Tng ph ti thanh ci 255

Cng sut tng l S=255(KVA)

Costb = .cosdmi i

dmi

P

S

=0.88

Vi h s ng thi l kt=0.8 Cng sut tnh ton thanh ci 2 l Stt thanhci 2=0.8*255=204(KVA)

VII) Tnh ph ti ngoi cn h: 1) T chiu sng LP1-1 cha cc ph ti ca tng hm, tng 1, v chiu sng ngoi cn h t tng 2-10: Ph ti ngoi cn h tng 2 Bng 2.24

Tng 2 Tn thit b S lng cos ksd Cng sut

(VA)

n Hunh quang 2x18w 6 1 0.95 1 273 n compact 1x18w 2 1 0.95 1 46 cm i 3 chu 5 1 1 0.6 2640



10/16A/220V

Tng 2959

Costb = .cosdmi i

dmi

P

S

= 0.99

Cng sut ph ti ngoi cn h t tng 2 n 10 l: S2-10=9*2959=26.631(KVA)

Ta c t chiu sng LP1-1 cha cc ph ti ca tng hm, tng 1, v chiu sng ngoi cn h t tng 2-10.

Stng=Stt hm + Stt tng 1+ S2-10

=33.865 + 52.717 + 26.631=113.213(KVA)

Costb = .cosdmi i

dmi

P

S

= 0.96

Voi kt=1 nn ta c:

Stt LP1-1=113.213(KVA)

Bng Chia pha cho ph ti t LP1-1 Bng 2.25

LP1-1


tng hm 220 9691 11779 12395 44.05 53.54 56.34

Tng 1 220 17543 16707 18467 79.74 75.94 83.94

Chiu.sng ngoi tng 2-4

220 8877 40.35


220 8877 40.35


220 8877 40.35

Tng Stng Ib tng



36111 37363 39739 164.14 169.8 180.6

Kt 1 1


Stt LP1-2 Ib LP1-2 36111 37363 39739 164.1 169.8 180.6

2) T chiu sng LP1-2 cha cc ph ti tng k thut, v ph ti ngoi cn h t tng 11-21: a) Ph ti ngoi cn h tng 11 Bng 2.26

Tng 11

Tn thit b S lng cos ksd

Cng sut (VA)

n Hunh quang 2x18w 6 1 0.95 1 273 n compact 1x18w 2 1 0.95 1 46 cm i 3 chu

10/16A/220V 5 1 1 0.6 2640

Tng 2959

Cng sut ph ti ngoi cn h t tng 11 n 20 l: S11-20=10*2959=29.59(KVA)

b) Ph ti ngoi cn h tng 21: Bng 2.27

Tng 21

Tn thit b S lng cos ksd

Cng sut (VA)

n Hunh quang 2x18w 6 1 0.95 1 273 n compact 2x20w 1 1 0.95 1 50 cm i 3 chu

10/16A/220V 5 1 1 0.6 2640

Tng 3282

Stng=Stt 21 + Stt kthuat+ S11-20



=3.282 + 28.369 + 29.59=61.241(KVA)

Costb = .cosdmi i

dmi

P

S

= 0.98

Voi kt=1 nn ta c:

Stt LP1-2=61.241(KVA)

Phn b cng sut trn cc pha ca t LP1-2 Bng 2.28

LP1-2


tng k thut 220 8331 10019 10019 37.87 45.54 45.54


220 11836 53.78


220 11836 53.78


220 9200 41.82

Tng Stng Ib tng 20167 21855 19219 91.65 99.32 87.36

Kt 1 1


Stt LP1-2 Ib LP1-2 20167 21855 19219 91.65 99.32 87.36

Tnh ton cho thanh ci tng : Stng= Stt LP1-1 + Stt LP1-2 + Stt t in + Stt thanh ci 1 + Stt thanh ci 2

=113.213+61.241+720+363.825+204

=1462.279(KVA)



Costb = .cosdmi i

dmi

P

S

= 0.895

Kt=0.8

Stt tng=1170(KVA)



Chng 3: Chn thit b bo v v dy dn I) Chn thit b bo v:

1) Cc nguyn tc la chn CB: Trong li in h p chung c, cc thit b bo v c th l CB hoc cu ch. Do CB c nhiu u im hn nhiu so vi cu ch nn ta chn CB lm thit b bo v. Khi la chn phi lu n kh nng ct ngn mch, phi hp vi dy dn, kh nng m bo lm vic bnh thng ca li.

H thng cp v thit b bo v mi cp cn tha mn ng thi cc iu kin cho li in an ton v tin cy, ngha l:

C kh nng mang ti ln nht v chu dc qu ti bnh thng trong thi gian ngn. Khng gy st p mnh trong nhng trng hp khi ng ng c Hn na, cc thit b bo v cn bo v cp v thanh gp mi cp b qu dng. Bo

v chng chm in gin tip, c bit trong h thng TN v IT , khi chiu di mch in c th hn ch bin ca dng ngn mch, do lm chm tr s ng ct CB.

CB: l thit b dng ng ct mch in lc bnh thng cng nh lc b s c ( qu ti, ngn mch ).

Cc nguyn tc la chn CB: Um CB Uli (3.1) Ib Ir In (3.2) ISC(3) ICu (3.3) ISC(1) Im (3.4)

Vi Ib : l dng in lm vic nh mc ca dy dn In: l dng in lm vic nh mc ca CB Ir : l dng chnh nh ca CB

ICu : kh nng ct dng ngn mch ca CB Im : dng chnh nh ct ngn mch ISC(3) : dng ngn mch 3 pha i xng ISC(1) : dng ngn mch 1 pha.

2) Tnh ton chn CB:



Bng 3.1 Tuyn dy

Dy dn

Ib(A) In(A) Tn CB Tn trip unit

or Curve

H s chnh nh dng qu ti

Ir(A) Icu (kA)

A B C

C1 1743.9

1754.6

1765.2

2000 Compact NS 2000N

Micrologic 2.0

0.9 1800 70

C0 1061.5

1061.5

1076.5

1250 Compact NS 1250N

Micrologic 2.0

0.9 1125 50

C2 C2 164.1 169.8 180.6 250 Compact NS 250N

STR22SE

0.8*0.93

186 36

C2.B 44.05 53.54 56.34 63 Compact NS 100N

TM 63D 0.9 56.7 36

C2B1 24.11 25 Compact NS 100N

TM 25D 1 25 36


TM 40D 0.9 36 36


TM 40D 1 40 36

C2B4 19.94 19.94 19.94 25 Compact NS 100N

TM 25D 0.8 20 36

C21 79.74 75.94 83.94 100 Compact NS 100N

TM 100D

0.9 90 36

C211 23.4 25 Compact NS 100N

TM 25D 1 25 36

C212 56 63 Compact NS 100N

TM 63D 0.9 56.7 36

C213 36.4 40 Compact NS 100N

TM 40D 1 40 36

C214 33.89 40 Compact NS 100N

TM 40D 0.9 36 36

C215 30.11 40 Compact NS 100N

TM 40D 0.8 32 36

C216 19.94 19.94 19.94 20 Compact NS 100N

TM 25D 0.8 20 36

C22 40.35 50 Compact NS 100N

TM 50D 0.9 45 36

C23 40.35 50 Compact NS 100N

TM 50D 0.9 45 36



C24 40.35 50 Compact NS 100N

TM 50D 0.9 45 36

C3 C3 91.65 99.32 87.36 100 Compact NS 100N

TM 100D

1 100 36

C3T 37.87 45.54 45.54 50 Compact NS 100N

TM 50D 1 50 36

C3T1 10.43 16 Compact NS 100N

TM 16D 0.8 12.8 36

C3T2 25.6 Compact NS 100N

TM 32D 0.9 28.8 36

C3T3 25.6 Compact NS 100N

TM 32D 0.9 28.8 36

C3T4 7.5 10 C60N C 1 10 6

C3T5 19.94 19.94 19.94 20 Compact NS 100N

TM 25D 0.8 20 36

C31 53.78 63 Compact NS 100N

TM 63D 0.9 56.7 36

C32 53.78 63 Compact NS 100N

TM 63D 0.9 56.7 36

C33 41.82 50 Compact NS 100N

TM 50D 0.9 45 36

C4 C4 552.7 552.7 552.7 630 Compact NS 630N

STR23SE

0.9*1 567 50

C5 24.3 24.3 24.3 25 Compact NS 100N

TM 25D 1 25 36

C6 24.3 24.3 24.3 25 Compact NS 100N

TM 25D 1 25 36

C7 24.3 24.3 24.3 25 Compact NS 100N

TM 25D 1 25 36

C8 24.3 24.3 24.3 25 Compact NS 100N

TM 25D 1 25 36

C9 96.5 96.5 96.5 100 Compact NS 100N

TM 100D

1 100 36

C10 31.9 31.9 31.9 32 Compact NS 100N

TM 32D 1 32 36

C11 18.2 18.2 18.2 25 Compact NS 100N

TM 25D 0.8 20 36

C12 48.6 48.6 48.6 50 Compact NS 100N

TM 50D 1 50 36



C13 34.9 34.9 34.9 40 Compact NS 100N

TM 40D 0.9 36 36

C14 151.9 151.9 151.9 160 Compact NS 160N

STR22SE 160A

1*0.95 152 36

C15 395 395 395 400 Compact NS 400N

STR23SE 400A

1*1 400 50

C16 C16 309.9 309.9 309.9 400 Compact NS 400N

STR23SE 400A

0.8*0.98

313.6 50

C17 34.9 34.9 34.9 40 Compact NS 100N

TM 40D 0.9 36 36

C18 65.3 65.3 65.3 80 Compact NS 100N

STR22SE

80A

0.9*0.93

66.96 36

C19 34.9 34.9 34.9 40 Compact NS 100N

TM 40D 0.9 36 36

C20 188.4 188.4 188.4 250 Compact NS 250N

STR22SE 250A

0.8*0.95

190 36

C2A 63.8 63.8 63.8 80 Compact NS 100N

TM 80D 0.8 64 36

L M N

L 105.3

4

88.34 83.28 160 Compact NS 160N

STR22SE 160A

0.8*0.85

108.8 36

M 94.08 94.18 49.38 100 Compact NS 100N

TM 100D

1 100 36

N 74.36 74.36 148.7 160 Compact NS 160N

STR22SE

160A

1*0.93 148.8 36

L1A 45.04 50 Compact NS 100N

TM 50D 1 50 36

L1B 45.11 50 Compact NS 100N

TM 50D 1 50 36

L1C 45.9 50 Compact NS 100N

TM 50D 1 50 36

L1D 45.04 50 Compact NS 100N

TM 50D 1 50 36


TM 63D 0.9 56.7 36




TM 63D 0.9 56.7 36


TM 63D 1 63 36


TM 63D 1 63 36


TM 63D 1 63 36


TM 100D

0.9 90 36


TM 100D

0.9 90 36


TM 100D

0.9 90 36

L4D 87.49 100 Compact NS 100N

TM 100D

0.9 90 36

L1A L1B L1C L1D

L11 9.5 10 C60N 10C 1 10 6

L12 25.6 32 Compact NS 100N

TM 32D 0.9 28.8 36

L13 12.3 16 C60N 16C 1 16 6

L14 12.6 16 C60N 16C 1 16 6

L15 15 16 C60N 16C 1 16 6

L2A L2B


TM 16D 0.8 12.8 36


TM 40D 0.9 36 36

L23 12.9 16 C60N 16C 1 16 6


TM 16D 0.8 12.8 36

L25 15 16 C60N 16C 1 16 6

L26 7.5 10 C60N 10C 1 10 6

L3A

L3B L3C

L31 12.8 16 C60N 16C 1 16 6


TM 50D 0.9 45 36

L33 13.6 16 C60N 16C 1 16 6


TM 16D 0.8 12.8 36

L35 15 C60N 16C 1 16 6



L36 15 C60N 16C 1 16 6

L4A L4B L4C

L4D

L41 22 25 Compact NS 100N

TM 25D 0.9 22.5 36


TM 40D 0.9 36 36


TM 40D 0.9 36 36


TM 25D 1 25 36


TM 16D 0.8 12.8 36


TM 16D 0.8 12.8 36

L47 15 16 C60N 16C 1 16 6

L48 15 16 C60N 16C 1 16 6

L49 7.5 10 C60N 10C 1 10 6

II) Chn dy dn : 1) Cc vn chung khi la chn dy dn:

a) La chn dy dn : C nhiu phng php tnh ton chn dy dn nh: Chn dy dn theo mt dng kinh t:

F = kt

lv

jI ( 3.5 )

Trong : F tit din dy dn (mm2). Ilv dng lm vic ca ng dy (A). jkt mt dng kinh t (A/mm2), gi tr mt dng kinh t c tra trong cc ti liu k thut. Chn dy dn theo st p cho php

Rdm

ii

UUlp

.).( ( 3.6 )

Trong : in tr sut ca dy dn (m). pi cng sut tc dng truyn trn on dy i (W).



li chiu di on dy i (m). Udm: in p nh mc (V). UR: st p do thnh phn tr khng gy ra (V). Chn dy dn theo iu kin pht nng cho php p dng cc tiu chun ca Hi ng K thut in Quc t (IEC - International Electrotechnical Commission).

Icp K

Ilv max ( 3.7 )

Trong : Icp: dng cho php ca dy dn (A). Ilvmax: dng lm vic ln nht ca ph ti tnh ton (A). K: h s hiu chnh theo iu kin lp t. b) Phng php xc nh tit din nh nht cho php ca dy dn: XC NH KCH C CA DY PHA Trnh t xc nh tit din nh nht ca dy dn:

iu kin lp t ca dy

Xc nh cc h s K v m ch ci.

Dng lm vic max

Dng nh mc ca thit b bo v khng c nh hn dng IB

La chn dng cho php IZ ca dym thit b bo v c kh nng bo v n

CB=>IZ=In

Xc nh tit din dy c kh nng ti IZ1bng cch dng IZ c tnh n nh hng ca cc h s K (IZ=

KI Z ), ca m ch ci v v bc

Kim tra cc iu kin khc nu cn theo bng ...

IB

In



Trong : IB: dng lm vic max, cp cui cng mch in, dng ny tng ng vi cng sut nh mc KVA ca ti. In: dng nh mc ca CB, l gi tr cc i ca dng lin tc m CB vi Relay bo v qu dng c th chu c v hn nh nhit mi trng do nh ch to quy nh, v nhit ca cc b phn mang in khng vt qu gii hn cho php. IZ: dng cho php ln nht, y l gi tr ln nht ca dng m dy dn c th ti c v hn nh m khng lm gim tui th lm vic. Th tc c tin hnh nh sau: + Xc nh m ch ci: c tra t cc bng H1-12 ca ti liu. - dng ca mch (1 pha, 3 pha) - dng lp t. + Xc nh h s K phn nh cc nh hng sau: c tra t cc bng H1-13, H1-14, H1-15, H1-19, H1-20, H1-21, H1-22 ca ti liu IEC. - s cp trong rnh cp; - nhit mi trng; - cch lp t. * Xc nh c dy i vi cp khng chn di t: + Xc nh m ch ci: cc ch ci (B ti F) ph thuc vo dng ca dy v cch lp t n. + Xc nh h s K: vi cc mch khng chn di t, h s K th hin iu kin lp t K = K1.K2.K3.

Trong : K1: th hin nh hng ca cch lp t. K2: th hin nh hng tng h ca hai mch t k nhau. Hai mch c coi l t k nhau khi khong cch L gia 2 dy nh hn 2 ln ng knh cp ln nht ca 2 cp ni trn. K3: th hin nh hng ca nhit tng ng vi dng cch in. * Xc nh c dy cho dy chn di t:



Trng hp ny cn phi xc nh h s K, cn m ch ci thch ng vi cch lp t s khng cn thit. + Xc nh h s hiu chnh K: vi cc mch chn di t, K s c trng cho iu kin lp t K = K4.K5.K6.K7. Trong : K4: th hin nh hng ca cch lp t. K5: th hin nh hng ca s dy t k nhau. Cc dy c coi l t k nhau nu khong cch L gia chng nh hn 2 ln ng knh ca dy ln nht trong hai dy.

K6: th hin nh hng ca t chn cp. K7: th hin nh hng ca nhit ca t. XC NH KCH C DY NI T BO V (PE: Proctective Earth):

Dy PE cho php lin kt cc vt dn t nhin v cc v kim loi khng c in ca cc thit b in to li ng p. Cc dy ny dn dng s c do h hng cch in (gia pha v v thit b) ti im trung tnh ni t ca ngun. PE s c ni vo u ni t chnh ca mng. u ni t chnh s c ni vi cc in cc ni t qua dy ni t. Dy PE cn:

- Khng cha ng bt k hnh thc hoc thit b ct dng no; - Ni cc v kim loi thit b cn ni ti dy PE chnh, ngha l ni song song; - C u kt ni ring trn u ni t chung ca t phn phi.

Kch c ca dy PE c xc nh theo phng php n gin sau: - Sph 16 mm2 => SPE = Sph - 16 < Sph 35 mm2 => SPE = 16 mm2

- Sph > 35 mm2 => SPE = 2phS

Nu mng thng xuyn trong tnh trng bt i xng ta chn SPE = Spha = SN

XC NH KCH C DY TRUNG TNH :



Tit din v cc bo v dy trung tnh ngoi tr yu cu mang ti, cn ph thuc vo cc yu t nh:

- dng ca s ni t, TT, TN - phng php bo v chng chm in gin tip.

Tit din ca dy trung tnh: nh hng ca s ni t S TN: SN = Spha nu Spha 16 mm2 (dy ng) cho cc mch mt pha.

SN = 0.5Spha cho cc trng hp cn li vi lu l dy trung tnh phi c bo v thch hp. Nu mng thng xuyn trong tnh trng bt i xng ta chn SN = Spha

2) Tnh ton chn dy dn: Tuyn dy C1, t my bin p n t in chnh MSB Dng in lm vic Ib= 1765.2(A), c dng chnh nh CB Ir= 1800(A) +) Chn dy dn;

Iz= Ir =1800(A) Cp c chn di t Cp c t trong ng ngm: K4=0.8 C 4 dy dn cho mt pha : K5= 0.8 t kh: K6=1 Nhit t 200C K7=0.84 Ta c : K=K4*K5*K6*K7=0.8*0.8*1*0.84=0.5376 Dng in cho php lm vic lu di ca dy dn l: IZ=Iz/K=1800/0.5376=3348(A) Chn cp ng h p, 1 li. Cch in PVC, mi pha 4 si cp n, mi cp n mang dng 837(A). Tra bng 8.7 trang 48 sch DAMH TKCCD ta chn c dy cp c S=500(mm2), c dng cho php l 864(A), suy ra Icp=3456(A). Chn dy trung tnh v dy PE c S=Spha=4*500(mm2) (do ti bt i xng) Tuyn dy C2, t t in chnh MSB n t chiu sng LP1-1: Dng in lm vic Ib= 180.6(A), c dng chnh nh CB Ir= 186 (A)

+) Chn dy dn; Iz= Ir =186(A) Cp c t trong thang cp: K1=1 C 1 dy cho 1 pha, nm k 1 cp khc K2=0.8 Nhit t 300C K3=1 Ta c : K=K1*K2*K3=1*0.8*1=0.8



Dng in cho php lm vic lu di ca dy dn l: IZ=Iz/K=186/0.8=232.5(A) Chn cp ng h p, 1 li. Cch in PVC, mi pha 1si cp n, cp n mang dng 232.5(A). Tra bng 8.7 trang 48 sch DAMH TKCCD ta chn c dy cp c S=60(mm2), c dng cho php l 234(A). Chn dy trung tnh v dy PE c S=Spha=60(mm2) Chn Busway:

C Ib max=1076.5(A), c dng chnh nh CB l : Ir=1125(A) Nn ta chn Busway ng, c Icp=1250(A) R=4.39x10-5(/m), X=2.45x10-5(/m), Z=5.03x10-5(/m) Tng t cho cc tuyn dy khc ta c: Bng 3.2

Tuyn dy

Dy dn

Loi dy v cch in

K1 K2 K3 K Ir (A)

Iz (A) Spha (mm2)

S (PE) (mm2)

SN (mm2)

t MSB n Busway

C0 1125

C2 C2 Cu,1 li, PVC

1 0.8 1 0.8 186 232.5 60 60 60

C2b Cu,1 li, PVC

1 0.8 1 0.8 56.7 70.875

10 10 10

C2b1 Cu,1 li, PVC

1 0.8 1 0.8 25 31.25 2.5 2.5 2.5

C2b2 Cu,1 li, PVC

1 0.8 1 0.8 36 45 4 4 4

C2B3

Cu,1 li, PVC

1 0.8 1 0.8 40 50 5.5 5.5 5.5

C2b4 Cu,1 li, PVC

1 0.8 1 0.8 20 25 2 2 2

C21 Cu,1 li, PVC

1 0.8 1 0.8 90 112.5 22 22 22

C211 Cu,1 li, PVC

1 0.73

1 0.73

25 34.24658

2.5 2.5 2.5

C212 Cu,1 li, PVC

1 0.73

1 0.73

56.7 77.67123

11 11 11

C213 Cu,1 li, PVC

1 0.73

1 0.73

40 54.79452

6 6 6



C214 Cu,1 li, PVC

1 0.73

1 0.73

36 49.31507

5.5 5.5 5.5

C215 Cu,1 li, PVC

1 0.73

1 0.73

32 43.83562

4 4 4

C216 Cu,1 li, PVC

1 0.73

1 0.73

20 27.39726

2 2 2

C22 Cu,1 li, PVC

1 0.73

1 0.73

45 61.64384

8 8 8

C23 Cu,1 li, PVC

1 0.73

1 0.73

45 61.64384

8 8 8

C24 Cu,1 li, PVC

1 0.73

1 0.73

45 61.64384

8 8 8

C3 C3 Cu,1 li, PVC

1 0.8 1 0.8 100 125 25 25 25

C3T Cu,1 li, PVC

1 0.8 1 0.8 50 62.5 8 8 8

C3T1

Cu,1 li, PVC

1 0.73

1 0.73

12.8 17.53425

1 1 1

C3T2

Cu,1 li, PVC

1 0.73

1 0.73

28.8 39.45205

3.5 3.5 3.5

C3T3

Cu,1 li, PVC

1 0.73

1 0.73

28.8 39.45205

3.5 3.5 3.5

C3T4

Cu,1 li, PVC

1 0.8 1 0.8 10 12.5 1 1 1

C3T5

Cu,1 li, PVC

1 0.8 1 0.8 20 25 2 2 2

C31 Cu,1 li, PVC

1 0.8 1 0.8 56.7 70.875

10 10 10

C32 Cu,1 li, PVC

1 0.8 1 0.8 56.7 70.875

10 10 10

C33 Cu,1 li, PVC

1 0.8 1 0.8 45 56.25 6 6 6

C4 C4 Cu,1 li, PVC

1 0.704

1 0.704

567 805.3977

2*150 2*150 2*150

C5 Cu,1 li, PVC

1 0.8 1 0.8 25 31.25 2.5 2.5 2.5

C6 Cu,1 li, PVC

1 0

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