SU thanh cdng cua viec sUa chUa cac to may bien ap 500 kV da giup nganh dien hoan toan chu ddng trong viec van hanh he thdng dien 500 kV, va cung tU dd may bien ap 500 kV khdng cdn la "b
Trang 1NGHIEN CIJU THIET KE
CHE TAO MAY BIEN AP
SI^U CAO AP 450.000 kVA-50Q/225/35 kV
KS NGUYEN THj NGUYET
Cong ty CP Che tao Thiet bi dien Dong Anh
Dien nang dong vai tro rat quan trong do! vdi sti phat trien cua nen kinh te quoc
dan, trong do he thong dien la "mach mau" cung cap nang luang nudi moi hoat dong kinh te xa hoi, phuc vu ddi sdng, dam bao an ninh quoc phong cho moi quoc
gia Dien nang tii nguon den nofi tieu thu thiTdng phai bien doi qua nhieu cap dien
ap, do do tong cong suat cac may bien ap thudng bang khoang 5-7 lan tong cong suat cac may phat dien
d nUofc ta hien nay, mac du dien nang phat trien vdi tdc do binh quan 15% mot nam nhufng nhu cau ve dien tang khoang 18%, do do tinh trang cung khdng du cau se cdn keo dai Ngoai viec tap trung xay dUng cac loai ngudn dien, he thdng truyen tai va phan phdi dien cung can duTofc dau tu phat trien
Nha nudc da xay dung chien luac ndi dja hda san pham thiet bj dien, trong dd Viet Nam phai lam chu viec thiet ke, che tao thiet bj dien cd dien ap den 220 kV
I NHU'NG THUAN LOl VA KHO KHAN
Cdng ty CP Che tao Thiet bi dien Ddng Anh (EEMC) da
tUng budc lam chu cdng nghe, che tao thanh cdng cac may
bien ap 110 kV, 220 kV Thanh cdng cua viec nghien cUu,
thiet ke che tao cac may bien ap nay da thuc day dpi ngO
can bd ky thuat cua cdng ty nghien cUu sUa chUa phuc hoi,
tien den nghien cUu thiet ke che tao thanh cdng May bien
ap sieu cao ap 500 kV Day la sU thay doi ve chat bdi vl che
tao thiet bj dien tU 220 kV chuyen sang 500 kV la thach thUc
to Idn ve ca ly thuyet, bf quyet cdng nghe ma dpi ngu can
bd ky thuat phai tap trung giai quyet
Doi vdi cac nudc cd nen cdng nghiep phat trien dang
quan tam den van de thiet ke che tao may bien ap cd cdng
suat Idn, dien ap cao den 750 va 1000 kV, cdn ddi vdi may
bien ap 500 kV the gidi da di trUdc chung ta hon 30 nam
TU khi nudc ta cd he thdng dien 500 kV tat ca cac may
bien ap 500 kV deu phai nhap ngoai Mpi cdng viec lap dat,
bao dudng phai thue chuyen gia nUdc ngoai dam nhiem
Doi vdi ngUdi Viet Nam viec thiet ke, che tao cac thiet bj
dien ap sieu cao la nhiem vu "bat kha khang" Nam 2005, mdt loat may bien ap 216.000 kVA- 500/15,75 kV cua nha may Thuy dien lALY bj sU co, gay thiet hai Idn cho nganh dien cung nhu nen kinh te Viet Nam Tap doan Dien lUc Viet Nam (EVN) da giao cho EEMC nghien cUu sUa chufa phuc hdi cac to may nay Luc bay gid may bien ap lALY la san pham 500 kV mdi, cd dac thu ket cau phUc tap, trinh do cdng nghe cao, tham ehf can bd ky thuat cua EEMC cung chua hieu gl ve may 500 kV Tuy nhien vdi tinh than quyet tam cao, khao khat lam chu cdng nghe d trinh dp the gidi, EEMC da dang ky cdng trinh NCKH cap Bp, nham nghien cUu sUa chOfa, phuc hdi cac to may bien ap nay SU thanh cdng cua viec sUa chUa cac to may bien ap 500 kV da giup nganh dien hoan toan chu ddng trong viec van hanh he thdng dien 500 kV, va cung tU dd may bien ap 500 kV khdng cdn la "bat kha khang" ddi vdi can bd ky thuat Viet Nam nUa SU thanh thanh cdng cua de tai, cang lam tang
uy tin cua EEMC trong nganh dien cung nhu trong ca nUdc,
va ddng thdi md ra co hdi cho viec nghien cUu che tao may
Trang 2IS
Research on manufaturing design of ultra-high-voltage transformer 450.000kva-500/225/35kV
This article focuses on introducing the research on manufaturing design of ultro-high-voltoge trans-former 450.000kVA-500/225/35KV mode success-fully for the first time in Vietnam a n d Southeast Asia by Engineer Nguyen Thi Nguyet, Dong Anh Electrical Equipment Manufacturing Joint Stock Company (EEMC) On July, 2010, the first unit of the focility uuas p l a t e d to celebrate 1 0 0 0 years of Thong Long-Hanoi
n/ldy bien apSOOkV Idn dau tien che tao tai Viet Nan\
bien ap 500 kV sap tdi
Phat huy nhUng thanh cdng trong viec sUa chUa may
bien ap 500 kV, nam 2008, EEMC da manh dan dang ky de
tai NCKH cap Nha nUdc "Nghien cUu thiet ke, che tao to
may bien ap 450.000 kVA-500 kV", vdi cac thdng sd ky thuat
thda man tieu chuan lEC, tUdng dUOng vdi cac san pham
cung loai cua cac nUdc tien tien Day la cdng trinh NCKH
Idn nhat cua nganh Co khi dien Viet Nam tUtrUdc den nay
Hien nay tren the gidi mdi chi cd hon chue pudc che tao
dupe loai may bien ap sieu cao ap 500 kV nay
Khac vdi viec thiet ke che tao May bien ap 110, 220 kV,
khi nghien cUu thiet ke che tao to May bien ap 500 kV, cdng
ty phai dau tU lai toan bp nha xUdng de dat tieu chuan
quoc te ve: Dp am, dp sach cua khdng khf Oe phuc vu cho
viec thU nghiem to may bien ap nay, nha nudc da dau tU
nang cap Trung tam ThU nghiem dien Quoc gia hang tram
ty ddng
Cdng trinh nghien cUu thiet ke che tao may bien ap 500
kV da trd thanh mpt thach thUc doi vdi nganh Co khf Dien
luc Viet Nam ndi chung va EEMC ndi rieng
Gia trj cdng trinh len tdi 120 ty VND ddi hdi ban lanh dao
va toan the dpi ngu cdng nhan vien chUc cdng ty EEMC tap trung mpi ngudn lUc dam bao cho viec che tao thanh cdng
II TIEU CHUAN, THONG SO CHE TAO MAY BIEN APSOOKV
May bien ap dUdc tfnh toan thiet ke, lUa chpn vat lieu -phu kien, che tao va thU nghiem -phu hpp vdi cac chi tieu thdng sd ky thuat theo tieu chuan: lEC - 60076
11.1 DIEU KIEN LAM VIEC:
- Dp cao so vdi mUc nUdc bien : 1000m
- Nhiet dp mdi trudng tdi da : 450C -Nhiet dp mdi trudng trung blnh : SS^C
- Nhiet dp mdi trUdng thap nhat : 0°C -Dp am cue dai : 100%
- D p a m trung blnh : 85%
-Khf hau : Nhiet ddi
- MUc dp d nhiem mdi trUdng : Nang (cap 3)
Automation Today / 4, 2011 ol
Trang 3- Tdc dd gid du kien : 160km/h
11.2 CAC THONG SO KY THUAT CHINH:
Kieu: 1 pha, 3 tru
Loai may bien ap: 1 pha, 3 tru ngam trong dau, lam viee
ngoai trdi
Tan sd: 50Hz
Dien apdanh djnh:
Dien ap cudn cao ap (HV): 500/ 8 x1,25% kV (dieu chinh
dien ap dudi tai) ,
Dien ap cudn trung ap (MV):225/ kV(Cupn cao ap va
trung ap dau tU ngau)
Dien ap cudn ha ap (LV): 35 kV
Cdng suat danh djnh (Cao/Trung/Ha):
ONAN: 90.000/90.000/30.000 kVA
ONAF: 112.500/112.500/37.500 kVA
OFAF: 150.000/150.000/50.000 kVA
Td ndi day: YNaOdll
MUe each dien:
Kieu lam mdt:
D^ura
Caodp(HV): 500 kV
Trung 4p (MV): 225 kV
Trung tfnh cao dp (HV)
va trung ap (MV)
Ha Sp (LV): 35kV
Difin dp lam viec cue dai
kV
550
245 38.5 38,5
Dien ap thii cao ap AC(kV)
630 (cam ihtf., 200 Hz)
460 (cam (mg, 200 Hz)
70
70
Dien dp chiu xung xet Ll' Gia trj'dinh (kV)
1550
950 N/A
170
ONAN/ONAF/OFAF (lam mat tU nhien/quat cUdng
bUe/bom dau eUdng bUe)
Ddng dien ngan mach eua he thdng:
-Phfa 500 kV: 50 kA/2s
- Phfa 225 kV: 25 kA/2s
-Phfa35kV: 20 kA/2s
MUc tieng dn: Dudi 80 dB d khoang each 3 m theo tieu
chuan IEC-60551
Kha nang chju qua tai eua may bien ap:
Theo tieu chuan IEC-60354 va phu hop vdi quy trinh
van hanh MBA
Gidi han dp tang nhiet dp:
Ldp dau tren: 550C
Cudn day: SO^C
11.3 CAC OAC TINH KY THUAT CUA M A Y :
Td may bien ap 450.000 kVA-500 kV gdm 3 may bien ap
1 pha Moi may dupe nghien eUu day du tfnh nang hien dai
va cac chi tieu ky thuat tien tien dUa tren eo sd tieu chuan
lEC; May lam viec hoan toan tU ddng va cd he thdng bao ve
nhd he thdng thiet bj cung cap tin hieu; bao ve dupe bd tri
tren than may Cac tfn hieu nay dupe ndi vao eae tu dieu
khien va eac may ngat va cac thiet bj bao ve va do lUdng
dat trong tram
May dupe thiet ke dieu chinh dUdi tai phfa 500 kV, cd
dieu khien tai cho va tU xa Viee dieu chinh ddng thdi eac
bd dieu chinh cua tUng pha thdng qua he thdng dieu khien
tuddng "XENXIN"
He thdng lam mat dupe thiet ke tU ddng dieu khien
ddng hoac ngat cae quat mat, may bdm dau lam mat phu
thude vao che dp cua phu tai, cung nhU tfn hieu tU ddng bao cua he thdng ddng hd do nhiet dp dau, nhiet dp cac bdi day dupe bd trf tren nap may
May cd thiet bj bao dau va tuddng bao tfn hieu khi mUe dau trong blnh dau phu giam xudng qua mUe cho phep Khi dd nd se cung cap tfn hieu bao ddng; sau mdt thdi gian nhat djnh, se cap tin hieu eho may ngat lam viee, tach toan
bd may bien ap ra khdi ludi dien Ben hdng may cdn bd tri
2 van an toan de bao ve thiing may an toan khi cd sU eo tang ap ben trong
Tren dUdng dng dan len binh dau phu cd bd tri van tang ap de phdng hien tupng tang ap dot ngdt trong may
va bd trf ro le hoi bao ve He thdng tin hieu t u ddng cua Ro
le hoi dupe cap cho he thdng may ngat sudt qua trinh lam viec Neu trong qua trinh van hanh may bien ap, trong may
ed hien tupng khdng binh thudng se sinh khf, sinh ddng dau chay ngUpe role hoi se tU ddng phat tfn hieu cho may ngat May ngat lap tUe lam viee tach may bien ap ra khdi he thdng lUdi dien Ngoai ra, may bien ap edn lap 3 thiet bi do nhiet dp eae bdi day, nhiet dp dau Idp tren ben trong may
de theo ddi che dp lam viec eua may Bd phan do nhiet do nay cung tU ddng cung cap tfn hieu eho he thdng quat cung nhu he thdng bao ve may
6 mdi chan sU 500,220 va 35 kV, sU trung tfnh ed bo trf tU 3-4 bien ddng de do ddng dien trong cac bdi day cung nhu bao ve may khi qua tai, hoac khi cd sU ed tren lUdi dien Cae may bien ddng nay dupe ndi vao eae thiet bj bao
ve de theo ddi che dp lam viec cung nhU bao ve may trong qua trinh van hanh Hai ben hdng may bd trf 2 gian tan nhiet (he thdng lam mat) Tren moi gian lam mat ed bd trf
1 bom dau, quat mat va ddng hd do lUu lUdng dau Viec ddng ngat eae bom nay thUc hien d tij dieu khien tU dpng ben hdng may do sU tang giam eua phu tai
III CAC GIAI PHAP TRONG TINH TOAN THIET KE
May bien ap tU ngau 3 pha 450 MVA-500± 8x1,25% /225/35kVbaogdm
3 may bien ap tu ngau 1 pha 150.000 kVA 500/± 8x1,25%/225/35 kV Mac du da giam ve cdng suat cdn 1 /3, tach may ra lam 3 may, nhUng may bien ap tU ngau 1 pha nay van rat Idn ve cdng suat, to ve ki'eh thUde, lam khd khan trong van chuyen va lap rap, thi edng Nha san xuat phai dau rat nhieu thiet bj eho phu hpp, vi vay se tdn kem rat nhieu, tfnh kha thi thap Mudn de tai thUe thi, chung tdi phai tan dung nhUng thiet bj edng nghe hien cd, dau tu nhUng thUcan thiet de nang
cao chat lUcfng san pham, phu hgp vdi trinh dp cdng nghe che
tao May bien ap 500 kV
Viee lUa chpn phuong an tdi Uu de nghien eUu thiet ke che tao May bien ap 500 kV la mdt van de phUe tap Phuong an Uu viet phai giai quyet hang loat nhUng van de ve ket cau nhU: phu hop vdi nhUng dieu kien nha xUdng, van chuyen tren dudng di, tinh kinh te, tfnh cdng nghe va cung nhu tfnh thUc thi eua de tai De giai quyet nhUng van de tren, chung tdi nghien eUu ket eau mach tU dac biet, cae bdi day cung bd trf
Trang 4dac biet
Dd la may bien ap 1 pha, 3 tru nhUng chi ed 2 tru lap rap bdi
day lech Day cung la ket cau rat phu hpp vdi trinh dp edng
nghe eua EEMC hien tai
Ket eau nay hoan toan mdi, tUtrUdc den nay chUa ed trong
nhu sach vd ly thuyet
May bien ap tu ngau 1 pha 500 kV cd ket cau dac biet, cho
nen viec tfnh toan khdng gidng hoan toan nhu may bien ap tU
ngau 110, 220 kV thdng thudng De dam bao viec tinh toan
thiet ke eiia may bien ap thanh cdng, chung tdi phai giai quyet
nhUng van de mdi: Nhu viec tfnh toan ket cau may bd trf mach
tU lech, eac bdi day bd trf tren 2 tru lech
De nghien eUu van de nay, chung tdi phai thiet ke va che
tao may bien ap tu ngau 1 pha "Md hlnh thu nhd" cd cac thdng
sd tuong tUnhU thdng sdcua may bien ap 500 kVdang nghien
cUu: 1500 kVA-50/22.5/3.5 kV Phan dieu chinh bd trf tren cudn
day 50 kV± 8x1,25%
Sau khi hoan thanh viee che tao may md hlnh, chung tdi
da tien hanh thi nghiem rat nhieu lan, d nhieu gdc dp khac
nhau de tim ra dUpc quan he giUa mach tU vdi eac bdi day, giUa
cac bdi day bd tri leeh tren 2 tru lien quan vdi cac thdng sd eua
may
De tai da nghien cUu thiet ke vdi cae ty le cdng suat cua
cudn day 35 kV lap tren tru chinh, va cudn 35 kV lap tren tru
phu Sau moi lan thay ddi ty le cdng suat lai tien hanh thU
nghiem nhieu lan d nhieu gdc dp khac nhau Cac sd lieu do
6{jgc la CO sd de tim ra eae qui luat quan he giUa cac thdng sd
cua may bien ap thuc
Viee xay dUng md hinh nghien cUu de tlm ra qui luat quan
he cua eac ket eau vdi thdng sd cua loai may bien ap tU ngau
mdt pha dac biet nay da giup eho chung tdi cd them sd lieu
tham khao TU dd da cd nhUng hieu chinh hop ly trong tfnh
toan Vl vay eae sd lieu sau thi nghiem do dugc eua may 500 kV
phij hop vdi sd lieu da dUOc tfnh toan
- Van de ve phan bd dien trUdng:
Giai quyet van de phan bd dien trudng trong may bien ap
tu ngau truyen tai 500 kVvdi dien ap thU xung set 1550 kV la
ca mdt van de het sUe phue tap Bat cU mdt co sd san xuat may
bien ap nao tren the gidi cung phai het sUe than trpng trong
van de nay Dien trUdng phan bd d dau vao 500 kV, tap trung
d cae gdc bdi day 220 kV, bdi day dieu chinh cua cudn day 500
kV cac bdi day 35 kV la nhUng vung nguy hiem cua may Vi vay,
viec thiet ke bd tri cac vanh chan phai tren co sd nghien cUu
tfnh toan kha nang dU phdng dp ben xung set eua eac vung
trpng yeu nay trong may Oe giam cudng dp tae ddng cua dien
trudng d nhUng vung nay, phai bd tri eac vanh chan gde Cae
vanh chan gdc phai giai quyet rat nhieu yeu cau ve ky thuat,
yeu eau dp chinh xac cao, yeu eau ve ddi luu dau tan nhiet
trong may, yeu cau ve tinh dn djnh co hpc khi cd lUc dien ddng
tae ddng, yeu cau ve tfnh kinh te va cudi ciJng la dam bao tinh
kha thi
Ngoai cae van de tren, de tai da ap dung mdt sd ket cau tdi
Uu cua eae nUde phat trien nhU:DUe, Nga, My, Nhat Dd la viee
ap dung mdt sd bien phap tang cUdng each dien d vung tU
trudng tap trung; ap dung ket eau vanh dien dung kieu may
My, de tao ra he thdng dien dung hop ly nhat trong van de bao
ve ehdng set Thiet ke bdi day da tao ra dUde he thdng dien dung dpe true va ngang true hpp ly chju dUOc sdng set vdi dinh xung 1550 kV Ket cau bdi day cdn tao ra dUOe ddng dau chuyen ddng cUdng bUc lam tang them kha nang ddi lUu nhiet trong rupt may bien ap Mat khac, ket cau bdi day da tinh den van de lam triet tieu lUc dien ddng hUdng true len gdng tU khi ngan mach GiUa cae bdi day bd tri cac dng Idng tao thanh cac vach ngan, cung vdi he thdng vanh chan gdc de phan chia eUdng dp dien trUdng, lam giam cUdng dp dien trUdng trong may Phan dau ra 220 kV eua cudn 220 kVed dien trUdng manh cung da cd cac bien phap tao cac dng chan cat dien trUdng thanh nhUng doan nhd khdng gay nguy hai cho may
Khi thiet ke da ap dung mdt sd bien phap lam giam tdn hao
khdng tai va tdn hao ngan mach trong may Ket qua dd dugc
trong thUe te Po = 57 kW va Pk = 293,5 kW, dp dn 68 db da dat tieu chuan may cd chat lUpng eao
Khdi luong may 218 tan, khi thiet ke may bien ap phai tinh den viec thao rdi cac cum phu kien khi van chuyen, cung nhU
cd qui trinh lap dat
Viec bd tri hpp ly cae dau day ra, eac vj tri cua bd dieu chinh dudi tai se dan den kieh thUde vd may nhd gpn Ngoai ra giai quyet cac van de ddng deu tU trudng dau ra 500 kV mdt each
ed hieu qua
Thiet ke phan vd may bien ap tren eo sd kha thi edng nghe eua nha may, qua nghien cUu ket cau cac loai vd may cua eac nUdc da quyet djnh chpn ket cau vd kieu bae, gan dUng, day han kfn nhu kieu may eua Phap Ket cau nay khac phuc triet de van de chay dau day may
IV CAC GIAI PHAP CONG NGHE:
- Oe thiet ke dupe thUc thi, ngUdi thiet ke cae chi tiet hoac cac ket cau, phai tim hieu ky eac tinh nang thiet bj hien cd cua cac CO sd trong nUde de khai thac, ddng thdi phai tlm ra cac giai phap cdng nghe tren eo sd trinh dp cdng nghe hien cd eua ed cdng ty, de san pham lam ra dam bao chat lUpng eao
- Oe che tao va lap rap an toan may bien ap nay, EEMC da
bd ra gan tram ty ddng de eai tao nha xUdng, he thdng Ipe va say khdng khf, dau tu thiet bj edng nghe phu hpp vdi cdng nghe che tao may 500 kV
- Cdng nghe da giai quyet dUpc mach tU ghep 2 nUa vdi ddi vdi loai may bien ap cdng suat 150.000 kVA ed dUdng kfnh Idn hon 1 m, bao gdm eac ranh dau ngang, dpc; la ket cau tien tien nhat tren the gidi hien nay Day cung la phuong phap edng nghe mdi dau tien dUOc nghien cUu va thUc thi tai Viet Nam Viec nghien cUu che tao do ga de lap rap mach tU cd khdi lupng gan 70 tan vdi 62.600 loai la tdn day 0,23 mm cd kieh thudc khae nhau ma trong qua trinh dUng len khdng bj bien dang Cdng nghe quan day true dUng de giai quyet cac bdi day
500 kV cd khdi lUdng hon 11 tan, da giup eho van de nang cao chat luong san pham Cac thiet bj sU dung trong lap rap ga ghep, Cac ket cau cdng nghe giai quyet cae van de ton hao khdng tai va cd tai nhu sU dung toan bd dai thuy tinh, cdng
Automation Today / 4, 2011 33
Trang 5nghe dai mach tUda lam giam tdn hao dang ke eho may
- Cdng nghe che tao bdi day da giai quyet dupe mdt each
chfnh xac kieh thudc cua bdi day, dam bao dien trd mot chieu,
cung nhu dam bao dp chinh xac cae ket cau bao ve dien ap
xung set bdi he thdng chdng set thiet ke tren cac bdi day
Ngoai ra viec thi cdng chinh xae ket eau bdi day da tang them
kha nang chju lUe co hpc
- Cdng nghe che tao vd: Tren cd sd sU dung cae trang thiet
bj ehu yeu che tao cac may 220 kV, vd may sau khi gia edng
dam bao dUpe kich thUdc hinh hpc, ve dp kin, ve tinh co hpe
khi van chuyen Vd dUpc tinh toan va che tao vdi kha nang chju
dp chan khdng tuyet ddi 760 mmHg
- Cdng doan say: EEMC da ap dung cdng nghe say hien
dai: Say hoi dau Thdi gian say giam edn 1/5 so vdi trUde day
Cae edng nghe nay dugc nghien cUu apdung tren cd sd cdng
nghe eua eae nUdc phat trien phu hop eho may 500 kV
Den nay, de tai da hoan thanh va da thU nghiem nhUng
hang muc cudi ciJng Td may bien ap tU ngau truyen tai 1 pha,
3 cap dien ap: 450.000 kVA-500/225/35 kV cd khdi lUpng gan
652 tan lan dau tien dupe nghien cUu thiet ke va che tao thanh
cdng d Viet Nam May cd ket cau gpn, dep ve hlnh thUc, tdt ve
chat lupng, cac tinh nang ky thuat tUOng dUOng vdi cac may
cung loai cua cac nude tien tien May bien ap hien nay dang sSn sang chd chuyen di lap dat de khai thac
V KET LUAN:
Thanh edng cua de tai Nghien eUu thiet ke che tao may bien ap sieu cao ap 500 kV la mdc son do ma tap the Cdng ty
CP Che tao Thiet bj dien Ddng Anh da danh dau them mdt bude trudng thanh cua nganh Co khf Dien lUc Viet Nam noi rieng va cua nganh edng nghiep nang Viet Nam ndi chung
Cd duoc thanh edng nay nhd nhUng ddng gdp quan trpng cua Bd Khoa hpe va Cdng nghe, Bd Cdng Thuong, Tap doan Dien lUc Viet Nam, Tdng Cdng ty Truyen tai va cua Cdng ty Truyen tai dien I da tao mpi dieu kien ung hd ve tinh than, tai chinh, tai lieu cho EEMC hoan thanh nhiem vu
Chung tdi tin tUdng rang trong nhUng nam tdi cac May bien ap 110,220 kV, May bien ap 500 kV do EEMC che tao se cung cap du nhu cau cua nganh Dien trong viec phat trien lUdi dien 500 kV cung nhU chdng qua tai eae tram 500 kV tren toan qude ma khdng can nhap ngoai, gdp phan vao sU nghiep Cdng nghiep hoa va hien dai hoa dat nUdc.Q
GIAI PHAP
THU T H A P DUf U t U
• •
IRAN ANH THAI
I TONG QUAN CUA HE THONG THONG TIN
VAN HANH:
1.1 He thong dieu khien tram va cac trung tam
quan ly van hanh
De dap Ung nhu cau quan ly van hanh he thdng cao ap
(110/220/500kV), cac cdng ty truyen tai dien va cdng ty
dien lUc can dUpc trang bj mdt he thdng thu thap va xU ly
thdng tin van hanh tU mUe thap nhat cua he thdng la cac
tram bien ap cho den mUc quan ly cua cdng ty, xi nghiep
tham chi den tan cac dien luc dupe phan cap dieu khien
phdi hpp vdi ludi dien trung the eua minh
• • • • DC
r I rj
Hinh 1-1: Kien true tong the he thong thu thap va xCfly thong tin van hdnh