Tài liệu Hướng dẫn thiết kế lắp đặt mạch điện theo tiêu chuẩn IEC

· I~~IIIIIUIIIIUIII~II j *GT0126256* c . s ~~ elCler Electric Get mtJf't!with tire word's Power 115 Control Specialist SCHNEIDER ELECTRIC S. A . ..., HUaNG DAN THIET KE LAP BAT . BIEN . Theo tieu chudn quoc ta lEe (In ldn thu 5 co chlnh sua) Nguai dich Phan Th] Thanh Binh, Phan Quae Dung, Pharn Quang Vinh, Phan Th] Thu Van Phan Phuc, Nguy~n Van Nha, DLldng Lan Hironq, Bui NgC?eThu To Hiru Phuc, Nguy~n Ba Ban, Nguy~n Th] Quang, Ngo Hai Thanh Ke THU VI~N rR! I~NGDHSPKT M GT --126256 NHA XUAT BAN KHOA HOC VA KY THUAT HA NOI-20M / .... Dich tir ban tieng Anh: Electrical Installation Guide According to IEe International Standards Lei tuo Bjorn Folcker. C Illi tich Uv I){III t u' \'(1'11 1'/ an toan (ACOS Advisor» Conimitee on Safety) CI/a Hoi riling Kv tluuit dien QII{YC Ie' (IEC - Internationul Elertrotechnical Commission). HQl dong Ky thuat dien Quae te da soan rhao ky Iirong cac lieu chuan nham si'r dung dien an loan. Cac rieu chuan nay diroc cong nhan va ap dung ngay cang n)ng rai Iai nhieu quae gia tren the aioi. Khuynh hirona do 10 ra ral hiru Ich trona cac trao ct6i thuimg mai quoc te va dicu nay cling da diroc khtmg dinh gan day trong Hiep dinh thue quan roan cau (GAIT) cua T6 chirc Mau dich the gi6i (WTO - World Trade Organisation). Hiep dinh nay da cong nhan die lieu chuan noi tren nhu la co si'1 chung eho cac trao ct6i thuong mai quoc te. Uy ban ky thuat 64 cua lEC, phu trach cac van d~ lap d~t dien trong cac cong trinh xay dung, da hoan thanh nhiern ~I cua minh bang each dua ra 10<;11 lieu chuan IEC 364, cLIng cap cac gLlY dinh can rhier d~ dam bao an roan trong I~p dat dien ha the (diroi 1000 V). Toi rat han hanh diroc gi6i thieu dcn cac d<)c gia quyen sach "Hirong dan thiet ke hip d~t dicn" nay, trong do cac tac giil c1a b6 sling va CLI th~ hoa nhirng tieu chuan do U)' ban ky thuat 64 dira ra. Cac hiru cau trcn thong tin va dfr kicn thuc tien de cap trong quycn sach nay rat Ich lrong viec thict kc' hoac lelr dilt dicn phu hop voi cac yell vc an to an cua lEe va ticu chuan cua S;lI1 pham. Kinh nghicm binh dien quoc gin da cho thay nhCrng tai lieu huang d~n nhir 'd quycn sach nay la cong C~Ihiru ich giup quy dinh CLIafEC ~M trong thirc rc. emr dung ch~dang hon cac Do «1m quan trong cong vice cua Uy ban Ky thua: 64, ACOS da chi dinh nhiem vu chu dao v~ an loan cua Uy ban nay 1a "Bao v~ . chong dien giat". Di0u nay ham nghia la cac quy lac co ban v~ bao ve chong dien gi~t do Uy ban 64 de ra sc phai dHQ'Ccac Uy ban ky thuat. khac cua IEC xem xet dcn khi soan thao cac lieu chuan co . lien quan den van de nay, vi du nhir cac lieu chuan cua cac loai thie] bi dien . • Bjorn L Folcker (TI1UY. Dien), M. Sc. (Ef Eng.), tung la Pho ChLI rich Uy ban Dien lire Thuy Difn (Svenska Elektriska Komrnissionen - SEK), la ban quoc gia Thuy Difn cua lEC va Uy ~o CENELEC. Ona da cons rac hon nam tai Vien kiem dinh thiet bi dien Thuy Difn (SEMKO - Swedish -~stituie for Testing and Approval of Electric Equipment). Trang thoi gian nay, ong da tham gia uch circ vao viec soan thao cac tieu chuan qucc te v0 an roan cho cac thier bi dien. Hien nay, ong Ia nr van cua SEK. Bjorn 1. Folcker la chu rich ACOS tLr 1987, dong thoi cling la chu tich mot so uy ban khac cua IEC trong linh vue an loan. 4 Loi gioi thieu Toi I/{III ltanh duuc glrfl Ihifu nji dong d(IO h~/1I doc qllyell S(I('h "l luoug ddll Ihi('f J.j 1(7/1di'll dieu" theo tie« chiuln qll('/(, le'IEe cua '/'(111 doau SCII N U Dh'R, h(/II dich Cl/O cac tlul», C() gi(lO dd "d dOllg gi(/lIg da.v tai truong D'ai hoc K.v 111lI(it (tru/«: d(IY hi D'ai hoc Bach khoa] tlrauh IIMf I fr) Chi Millh,. Noi clung ciia sach I/{iy de! c~JjI dell nhi eu vdn de'rat rong lou trong liult "I/C UjI d~/I traug Ihief bi dien: iiI' gioi thieu cac tieu Chlldll, qu» trinh. qlly pliam dell thong s(f "d tinh 1I(/lIg /1I(IY 1'11l)C,dl/lIg C(I, traug tlii e! bi dien, pluroug 111/(ljI tinh toan. thief ke'('(1c sa do ('(III dieu dam bdo yell cdu ,i tin c~/y. bdo ,'f cl/{)llg hi dien gi(11 va bdo "f chl>llg cac 11/( hong c() the" .\(Iy ra d{/i 1'(li 1III/(IIg /11/(/11 lir kliac nhau troug luoi dieu, ddc hi¢t Id luo! dicn ha (IP "d trong C(Ie cong trinh dC/II dung. lliell hii'f"e' Idp d~/llmllg thief bi dien hi mdng kiell III/(c quan trong trong qll(1 trinlt 11001 d(jllg cua IIII/(/Ig IIgl((yi lam /lghe! di¢1I Ilflhief ke: .\'(/y 1(7/1, gi{1111 sat thi cOIIg den vdn ltanh . S/(O chita Ihii'l bi difll sao 1'1/0 pll/I h~1JI 1'(Yi cac tie 11 Cllll//ll qll/k gill 1'(1qll//c Ie: dam h(IO cdc {1/{JlIg S(j' k,v III//(il "cI {I/1 toau cho IIgI({yi "{I {hii'I hi. Ily "~mg ('(Ic ban doc ('() {he" tint {hll\ IIhie'll thong till cdn Ihief ('(I 1'(1 I.',. (lllIyel Idll tlu«: h anlt trong qllyell sach I'll' h{~' ich I/{Iy. fill VS. noi. 1I,!:11\,IJI{/tI/lIg cs 5' /1(/111 2(}(}{) TSKI-I Trdll fJillll Long On behalf of Schneider Electric S. A., I confirm that the Vietnamese translation of the Electrical Installation Guide has been done with the auihorisarion of Schneider Electric S. A. France I would like also to thank the teachers of the Electrical Supply and Electrification Department of Ho Chi Minh City University of Technology for the valuable work that has been necessary to realisc this translation, I am conviccd that this document will he a great support for Vietnamese students. CHAN Ye\1'-W(/i Chief" Evecutive Schneider ll ectric S. A. Resident Represcutative Office in Vietnam. ' (~r 111ay mat Schneider Electric S. A., tC)i xac nhan ban dich sang ticng Via cua tap sach Electrical Installation Guide nay dil duoc SLr dong y cua Schneider Electric S. A. France. Toi tran trong earn on cac vi giang vien IX) mon Cung cap dicn va Dicn khf hoa, khoa Dien Dicn ur Truong Dai hoc Ky thuat TP Ho Chi Minh eta dong gop cong sire quy bau dt hoan thanh ban dich nay. Toi tin rang quycn sach nay se la mot SLr h6 tro lon l16i voi sinh vicn nganh dien tai Viet am. C/IAN Yew - Vl/oi Fn(fllg fJoi clien !Joi di£'n /h/((J'ng tru Schneider ll ectri« S. A. tai V<711j1!/()lIg \'i('/ Num • Cuon "Huong ddn thie: ke' Idp dijl dien" nay danh cho cac ky sir dien I~HTI e6ng rac thiet ke, thirc hien, gAm sat hoac bao tri trong Iinh vue Hip di;lt dien nrong hop voi cac tieu chuan quae te cua Hoi dong dien quae re (lEC). "Cac giai phap ky ky thuat thuat nao nham dam bao thoa man uft ca cac quy dinh v~ an roan'?", do la cau hoi rhuang xuyen diroc di;lt ra khi soan thao quyen sach nay. Ticu chuan quoc te nhir IEC 364 v~ "uip dat dien rrong cong trinh xay dung" xac dinh mot each baa quat cac quy t!ie can thiet nham dam baa an roan va cac quy dinh ve dac tinh lam vice cua moi dang lap di;lt dien. Do tieu chuan can co t inh baa quat va eo th~ ap dung giai phap ky rhuat khac nhau diroc sir dung tren the gioi, van ban cac quy vci moi loai san pham cling nhir cac dinh cua IEC duoc viet mot each phtrc tap va khong dtroc trinh bay thco mor trinh tu de irng dung. Cac tieu chuan nay, VI vay. khong the: xC.lTI nhir mot earn nang trng dung ma chi co th~ la cac tai lieu tham khao. Ml.IC dich cua quycn "Lluong ddn lhiel keldp dijl dien" nay lit khao sat van de thier k6 lap di;lt dicn urong hop voi ticu chuan lEe ::164 va cac ticu chuan IEC khac mo: each fO rang, thuc tien va h~ thong. 7 VI vay, chuang dall tien, chuang (B), trlnh bay t6m t~t noi dung quyen sach va moi chuang tiep theo se Ian IU91 trinh bay tung muc rrong tOng s6 8 muc diroc khao sat. Hal chirong cuoi cung diroc danh cho viec khao sat cac nguon, tal v~ vi tri dac bier, cling nlur cac phu luc cung cap cac thong tin phu. Can hru y dac biet den phu luc ve Ttrong hop dien tir (EMC - Electromagnetic Compatibility), diroc vier dua tren cac kinh nghiem rhuc tien va rong rai ve van de nay. Chung toi mong quy doc gia se thay rang quyen sach nay thirc sir hiru fch. Schneider Electric S. A. Loi cant La Quycn sach nay do mot I~p Ih0 gom cac chuycn gia q1l6'c Ie giaLl kinh nghiem soan thao, dua tren ban in Ian Ih(1' ba cua quyen "Guide de l'iustall ation electrique" do Cong Iy Merlin Gerin [In hanh, va bao g6m eel nhirng van de moi nhar trong Iinh vue lieu chuan hoa ve dicn. Khong th~ k~ het ten nhirng ngtroi c1a dang gap vao quy0n sach nay, nhung cluing toi dac hi¢1 earn on ong Jean-Pierre ROULET-DURONET, ESE Eng., SEE, nguoi dicu hanh du an, ong Edwin COEY, C. Eng., thanh vien lEE, ngLTai vier va dich chinh, va ong Alain CHAROY, Ran chap hanh AEMC, vid phu luc duui SLf vc chi dao cua Michel MEGRET, lieu chuan, Schneider urong hop dicn Ill', Pho giam doc ve Electric S.A .. Chung roi cling d~c hi¢1 earn on ong Bjorn FOLCKER, viet 1(1iura cho quyen sach nay. l) Chu rich IEC/ACOS da Ml)C Ll)C Trang .• 1. 2. 3. 4. 3 5 9 MLI Loi tua Lei gidi thieu Carn ta Muc luc CHVONG B .:! TONG QUAN - CONG SUA T DA T Phuong phap luan Cac qui Hie va qui dinh Xac dinh dp dien ap Cac qui dinh Cac tieu chuan Chrt hrong va tinh an roan cua mang eung dp dien Ki~rn tra ban d'au cua rnQt mang dien Kiern tra dinh ky mang dien SI/ phu hop (vdi cac tieu chuan va di[ledi~rn ky thuat) cua thie't bi dlf<;lesi't dung trong mang dien Dong co, phu tai nhiet va chieu sang Dong co earn ling Dong co mot chieu Cac thiet bi nhiet kieu dien trd va den nung sang (loai halogen hoac thong dung) Den huynh quang va cac thiet bi lien quan A I 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3 3.1 3.2 3.3 3.4 "" 3.5 Den ph6ng dien 4 Cong suflt tai cua Ilfoi 4.1 Cong surt di[lt(kW) MLI ••••. Bl Bl B5 B5 B7 B7 B10 B11 B12 B13 B15 B16 B18 B23 B25 B27 B29 B30 4.2 Cong sua't dat bi€u kien (kV A) 4.3 Tinh toan cong sua't yeu cau thuc 4.4 Vi du sa dung cac he;:s6 ku va ks 4.5 He;:s6 khong d"Ongthai 4.6 Chon lua cong sua't may bien ap 4.7 Chon lua nguon eung cap dien B31 B33B36 B38 B38 B39 CHVONGC , K' K CAC TRAM BlEN AP PHAN PHO! TRUNGI HA Nguon trung ap Dac tinh eung dp cua ludi phan phdi trung ap So d"Oke't Iudi phia trung ap MQt vai khia canh van hanh ludi phan phO'itrung ap Tram khach hang Cac trinh W thie] l~p mQt tram dien mdi Cac so d"Obao v~ tram Bao v~ chong dien giat va qua dien ap Bao ve;:dien Bao ve;:chong anh hudng cua qua nhiet dQ Lien dong va cac dieu khien co di'eu kien Tram bien ap khach hang vdi ph"an do htong phia ha ap T6ng quan Chon ni, bang Chon lua panel dong dt trung ap cho mach may bien ap Lua chon bien ap trung /ha Tram bien ap khach hang vdi ph"an do lu'ong phia trung ap T6ng quan Chon cac bang dien V~n hanh song song cac may bien ap Cach thie't l~p cac tram bien ap phan ph6i trung I ha ap Cac ki€u tram khac nhau Tram trong nha vdi cac thie't bi dong dt ki6u hop bQ co A 1 1.1 1.2 1.3 2 2.1 3 3.1 3.2 3.3 3.4 4 4.1 4.2 4.3 4.4 5 5.1 5.2 5.3 6 6.] 6.2 vo ML2 C1 Cl CI CI8 C21 C25 C26 C29 C30 C37 C58 C58 C64 C64 C65 C70 C71 C82 C82 C86 C90 C92 C93 C93 boc bang kim loai CHVONGO ~ ;l,..., 01. , CAC KIEU NOI MANG 01 HA AP 1 Ludi ha ap cong cong 1.1 HQ tieu thu dien ap thap 1.2 I,u'oi phan phoi ha ap 1.3 Ke't Iu'oi khach hang 1.4 Chrt luong dien ap 2 Gia di~n va do lu'ong CHVONGE ., " CAI THIeN 1 1.1 1.2 1.3 ",.(',.. ~ SO CONG '01 DI1 016 020 023 -""'... , .•. SUA T VA LOC SONG HAl Cai thien h~ sO'cong surt Ban chflt cua nang luong phan khang Cac may dien va thie't bi tieu thu cong sufit phan khang H~ sO' cong surt tg q> 1)0 M sO' cong surt Cac gia tri thuc te' cua M sO'cong surt Tai sao din cai thien h~ sO'cong suat 1.4 1.5 1.6 2 . 2.1 Giam gia thanh dien 2.2 T6i uu hoa kinh te' - ley thuat 3 Ciii thien h~ sO' cong suat 3.1 Cac nguyen ly El E1 El E3 E5 E8 E8 E9 Ell Ell E12 E14 1y thuyet E14 E16 3.2 Cac thiet bi bu cong surt 3.3 Lua chon phuong 4 4.1 tt! dong Vi tri lAp d?t tu Bu t~p trung E20 4.2 Bu nh6m E21 4.3 Bu rieng in bu nen (cO' dinh -) hoac bu di~u khien E19 E20 (tung phan dean ) E22 ML3 5 5.1 5.2 5.3 5.4 6 6.1 6.2 7· 7.1 1.2 8 9 9.1 9.2 9.3 9.4 10 10.1 10.2 Mire dQ bu t6i u'u Phuong phap chung Phuong phap tinh don gian Phuong phap tinh dua vao, di'eu kien khong dong tien phat Phuong phap tinh dua theo dieu kien giam bot cong suftt bi~u kien cue dai dang ky Bu tai cac tram di;i.tmay bien ap Bu nang cao kha nang tai cong suftt Bu cong suat phan khang cho may bien ap Bu cong suit tai dllu vao dQng co earn irng Van d'e mac bQ tu bu va chinh dinh bao ve; Bien phap tranh hien nrong tu kich thich cua dong co earn ling Vi du mot mang dien tnrdc va sau khi bu cong suit Anh huang ciia song hai de'n dinh rmrc dung hrong bu Cac vftn d'e do cac song hai trong he; thong dien gay ra Cac bien phap giai quyet thirc te' Chon phuong an t6i u'u Cac anh huang cua tu bu len he; thong dien Cac vftn d'e b6 sung lien quan de'n tu bu T1:I dien Chon mach bao ve, mach di'eu khien va cap n6i CHlJONGF ~ K , PHAN PHOI TRONG MANG HA AP 1 Khai quat 1.1 Cac mach phan phdi ha ap chinh 1.2 Tu phan phfii ha ap chinh 1.3 Chuyen tiep tu so db IT toi so db TN 2 Cac ngubn cung cip du phong quan trong 2.1 Tinh lien tuc eung dp dien 2.2 Chftt hrong dien nang ML4 E24 224 E25 E28 E29 E31 E31 E34 E39 E39 E40 E44 E45 E45 E46E48 E50 E51 E51 E53 - Fl F1 F1 F6 F7 F8 F8 Fl2 3 Cac M thong dien an toan phuc vu khi su co' va die nguBn dien du phong H~ thong dien an toan Cac nguon ph at dien du phong l Chon II/a va di;ic tinh cua cac nguon dien du' phong Chon II/a va di;ic tinh cua cac ngubn dien khac Cac may phat tai eh6 So dB n6i dilt 3.1 3.2 3.3 3.4 ·3.5 4 4.1 N6i dilt 4.2 Dinh .nghia cac he thong n6i dilt chuan 4.3 8i;ie tinh cua so dB n6i dilt 4.4.1 Cac tieu chuan chon II/a 4.4.2 So sanh cac tieu chuan 4.5 Chon II/a each n6i dilt - Bien phap thuc hien 4.6 Lap dat va do hrong dien cue n6i dilt 5 Tu phan phdi 5.1 Cac Ioai phan phdi 5.2 Cac ky thuat lip rap phan phdi chirc nang 5.3 Cac tieu chuan 5.4 Bi'eu khien trung tam 6 Cac day phan ph6i 6.1 Mieu va each chon II/a 6.2 Ong din, day din va day cap 7 Tac dQng cua m6i tnrong ngoai tu tu ta F30 F30 F31 F33. F35 F35 F38 F38 F43 F47 F59 F61 F63 F65 F74 F74 F77 F79 F81 F81 F81 F83 F91 7.1 Phan loai F92 7.2 Bao v~ dung tu: ky hieu IF F93 CHlJ0NGG ., '" ...t' " ,... BAa ve CHONG BIeN GlA T 1.1 8i~n gi~t Gl 01 01 1.2 Cham true tiep va charn.gian ti~p 02 1 T6ng quan ML5 2 2.1 2.:2 3 3.1 3.2 3.3 3.4 3.5 4 4.1 4.2 4.3 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.:2 6.3 6.4 6.5 7 7.1 7.2 7.3 Bao v~ chong cham dien true tie-p Cac bien phap bao v~ chong cham dien true tie-p Bien phap b6 sung eho bao v~ chong cham dien true tie-p Bao v~ chong cham dien gian tiep Cac bien phap baa v~ bang each nr dong cat nguon cung cap TIf dong dt ngu'on d5i voi mang n6i da't kieu TT TIf dong dt nguon d6i vdi mang duoc n6i da't kieu TN TIf dong dt ngucn khi bi cham da't tai hai diem trong mach n6i da't kieu IT Cac bien phap bao v~ chong cham dien true tie-p va gian tiep khong e'an dt mach Bien phap thuc hien so d'o IT Cac bien phap baa v~ Cac loai RCD Ph6i hop gitra cac thiet bi baa v~ sa lech Bien phap thuc hien mang TN Nhirng di~u kien tien quyet Baa v~ chdng cham dien gian tiep Cac thiet bi chong dong ro co dO nhay cao Baa v~ nhtrng vi tri di;tebiet co nguy co chay Khi t6ng trd mach su e5 di;tebiet IOn Bien phap thuc hien so d'o IT Nhung di~u kien tien quyet Baa v~ chong cham dien gian tie-p Cac RCD co d9 nhay cao d nhirng noi co m6i nguy hiern hoa hoan cao Khi t6ng trd mach vong su' co' dac biet Ion Cac thiet bi baa v~ dong ro theo nguyen tik so lech (RCD) Mo ta Ung dung cua RCD Chon cac dac tinh cua CB chong dong ro .• ML6 G3 G4 G6 G7 G9 G 11 G 13 G 19 G27 G35 G35 G38 G41 G44 G44 G45 G54 G55 G55 G57 G58 G59 G68 G69 Gt19 G71 071 G72 G78 ( Residual - Curren! Circuit Breaker - RCCB - IEC 1008) CHlJ0NGH BAO VB. LtJOI - THrET Bl. BONGl CAT PI-rAN HI BAO LtJOI vt 1 1.1 1.2 1.3 1.4 1.5 1.6 2 Khai niem chung Phuong phap luan va cac dinh nghia Nguyen ly bao v~ qua dong Cac gia tri thuc dung cho M thong bao v~ Vi tri.dat cac thiet bi bao v~ Cap mac song song Vi du minh hoa tinh toan cap Phuong phap thuc te' xac dinh tie't dien nho nhfit cho phep cua day d§.n 2.1 2.2 2.3 3 3.1 3.2 4· 4.1 4.2 4.3 4.4 5 5.1 5.2 KMi niern chung Xac dinhco day d6i vdi cap khong chon dudi dit Xac dinh co day cho day chon dudi dit Xac dinh dQ sut ap 8Q sut ap Ion nhat cho phep Tinh toan sut ap d dieu kien 6n dinh Tinh ngan rnach Ngan mach tai thanh cai ha ap cua bien lip phan phdi Ngan mach 3 pha (Isc) tai di~m bit IcY cua hrdi ha ap Xac dinh dong ngan mach theo ngan mach d'au day Dong ngin mach cua may phat hoac bQ chinh luu Cac tnrong hop d~c biet ciia dong ngdn mach Tinh toan mire dong ngiin mach nhonhfft Ki~m tra kha nang chiu nhiet cua cap trong di~u kien ngan mach 6 Day n6i dit bao v~ (PE) 6.1 Cach mac va chon lua day 6.2 Kich co cua day Hl-l HI-Ol R 1-5 HI-7 HI-lO Hl-12 HI-12 HI-21 HI-21 I-Il-23 HI-30 Hl-35 HI-35 Hl-37 HI-43 HI-43 HI-46 HI-53 HI-56 HI-56 HI-56 HI-66 HI-68 HI-68 ONGDHSPKT ML7 GT • 126250 6.3 6.4 7 7.1 7.2 Day baa v~ giua cac may bien ap phan phO'i va tll phan phO'ichinh (MODB) Day ding the' 1 1.1 1.2 1.3 2 2.1 2.2 3. 3.1 3.2 4. 4.1 4.2 4.3 4.4 Day trung tinh Tie't dien day trung tinh Baa v~ day trung tinh x , ~ PHAN H2 THIET Bl80NO CAT Cac clnrc nasg co ban cua thie't bi dong ciit ha ap Baa v~ dien Cach ly 8i'eu khien thiet bi dong ciit Thie't hi dong ciit va diu chi Cac thiet bi dong ciit cd ban Cac t6 hop thie't bi dong ciit Chon thie't hi dong ciit Cac chuc nang du<;fcthuc hien Chon ki~u thie't bi dong ciit May ciit ha ap (CB) Tieu chuan va mo ta Dac tinh co ban cua mot CB Cac d~c tinh khac cua Il1Qt CB Chon CB 4.5 4.6 SIf phdi hop cac CB Baa v~ chon loc trang tram bien ap khach hang trung/ ha 'A CHlJ<)NOJ CAC NGUON VA T AI I-)AC BIeT 1 Bao v~ mang ca'p di~n tu may phat dien l.1 May phat dien khi co ng~n mach l.2 Baa v~ cac rnach quan trong diroc ca'p di~n tu may phat dien khi co su cO' 1.3 Lira chon bQ tac dong , ..............,..., Hl-73 Hl-75 HI-7C, Hl-76 Hl-77 H2-1 H2-1 H2-2 H2-2 H2-5 H2-7 H2-7 H2-19 H2-22 H2-22 H2-23 H2-23 H2-24 H2-29 H2-34 H2-39 H2-50 H2-62 A ML8 J1 J1 12 17 J9 1.4 Cac phuong phap tinh toan g'an dung .111 1.5 Bao v~ may phat xoay chieu di dong va du phong J 17 2 B9 nghich hill va b9 hru dien (UPS) JI8 2.1 B9 nghich hill la gl? JI8 2.2 Cac dang 2.3 Tieu chuan J23 2.4 Lua chon h~ thong UPS 2.5 H~ thong UPS va moi tnrong cua no J23 .T27 2.6 Dua UPS 2.7 So db no'i dilt J33 2.8 Chon day cap mach chinh va phu, cap cho acquy 2.9 Chon so db bao v~ J38 .T43 M thong UPS .T19,. van hoat dong J30 .T46 2.10 Thie't bi phu tro 3 Bao v~ bien ap ha ap I ha ap .T47 3.1 Dong dong may bien ap .T48 3.2 Bao v~ mach cung cap cua bien ap ha ap I ha ap J49 3.3 Diflc tinh dien tieu bi~u cua bien ap ha ap I ha ap 50Hz J50 3.4 Baa v~ bien ap vdi diflc tinh theo bang J3-5 d tren bang CB J51 4 Mach chieu sang J55 4.1 Tinh lien tuc hoat dong J55 4.2 Den va phu kien cua Merlin-Gerin 4.3 Mach va baa v~ mach J57 .T57 4.4 Xac dinh dong dinh mire CB J59 4.5 Chon thie't bi dong ellt va dieu khien J62 4.6 Baa v~ mach chieu sang vdi dien ap cue thap J63 4.7 Nguon eung cilp cho chieu sang sir co" J65 5 Cac d9ng cd khong dbng b9 J68 5.1 Cac chiic nang baa v~ va di'eu khien e'an thie't Jf9 5.2 Cac tieu chuan J73 5.3 Cac sd db baa v~ co ban: Cb/Contactor/Rcle 5.4 Baa v~ phong ngua hoac gidi han nhiet J73 .T80 ML9 rl r 5.5 5.6 6 6.1 6.2 Dinh rmrc cong sua't Ion nha't dong cd dung cho tai ha ap Bu cong sua't ph an khang (hieu chinh M s6 cosrp) Baa v~ hioi dien mot chieu Dong ngan mach Dac di~m ro dien do hu hong each dien va thie't bi dong Gift .185 .186 .186 .186 .189 6.3 6.4 baa v~ Chon thitt bi baa v~ Vi du J90 .192 6.5 Baa v~ nguoi .193 1 1.1 1.2 1.3 1.4 1.5 2 2.1 2.2 2.3 3 CHlJdNGL LAP BAT BI$N DAN Dl)NG V A cAc vt TRl BAC BI$T Lap d~t dien dan dung Khai quat Cac thanh ph'an cua phan phdi Baa v~ an toan Cac rnach dien Baa v~ qua dien ap va chong set Nha Him va voi sen Phan loai cac vung Ludi dAng ap Cac yeu c'au cho m6i vung Cac quy pham ap dung cho hioi co vi tri d~c biet tu Ll L1 1.1 1.2 L6 L10 L 12 L15 LI5 1.18 L 19 L 19 PHl) Ll)C Phu luc C n.cr 1. Vi du phci hop d~c tinh cua t6 hop dao dt - diu chl trung PLC-l ap baa v~ bien ap phan phdi 2. Phan b6 dien ap tren mat da't khi yO dong su c6 cham da't PLC-6 ' 3. Gian d'Ovectd cong hirdng siit W{an so 50 (60 Hz) PLC-13 Phu luc E - Cac bQ IQc hai cd ban PLC-J6 Hz- MLlO