TH: Nguyn Khc DuTRNG AI HOC THUYSANKHOA KHAI THACBOMON IEN THHBA
OC A OHOC THUA TRole bao v my pht k thut sThs: NGUYEN KHAC DNha
Trang, thang 01 nam 2006TH: Nguyn Khc DuDGPRole bao v mypht k thut
sBao v ton din, gim st,diu khin, v cc chcnng thu nhn cua my phtdin
xoay chiuBao v v diu khinBao v so lch StatorDng din khng di xngMt
kch tBao v d|nh hung cngsutQu dng din theo thigianKm ham din p100%
s c chm dt cuastatorQu dng do chm dtQu kch tQa din p v km pQu tn s
v km tn sTch nng lung ngunhin8 r le ng ra c th d|nhdng ducC dn 3 ng
vo c thd|nh dng ducS thay di chin luccua logic niCc ng dng Cc MFDXC
( hoi nuc,kh, thuy lc) Bt ky co no cua MFDGim st v do dcCc b t chn
don morngGim st mch ngtDng h : A,V, W, VAR,HHzCc d kin: 100 d kinmi
nhtCc bo li s c: 3 s cmi nhtCc giao din vi nguidng 20 nt keypad Mn
hnh led 16 k t C trn 18 dn led bomc tiu b| li Hai cng RS 232 Mt cng
my in Dng b v thi gianIRIG - BTH: Nguyn Khc DuM TAThitbiDGPlmth
thng k thut s cung cpdai baov
rng,gimstvdiukhinccchucnngghinhnlaicuaccmyphtdinxoaychiu(MFDXC).GDP
duocdngtrongccMFDduoctruyn
dngbngtuabinhoinuoc,tuabinkhvtuabinthuyluc.GDPcthbaovduoc tt ca cc
co MFD. GDPdat duocmuc d tin cy v an ton caonhothu tuc tu chn don
mo rng v ngun cung cp du tru tuy chon. GDP cungcp cc chuc nng bao v
thuong dng trong mt ci hp, gm 100% su
cchamdtcuastatorvnhungdiuhopltrongvicnapnngluongngunhin. N c tn s
ly mu ph hop d bao v tt hon trong khi khoi
dng.GDPc8rolengracthdinhdangduoc,4rolengtv4rolebodng.Nchophpnhung
thaydictnh chinluoccualogicni dtaothun loi cho su an ton v tin cy.N
c dng h do mo rng, do duoc dng thu tu nghich, sng hi bcba cua cc
din p. DGP c th ghi lai 100 du kin moi nht, 3 li moi nht,v
120chukynhodaodng k.Mtbnphmintegral,mnhnh c16ktu, v cc dn bo led
cho php d dng dao din cuc b voi nguoi su dung.Mt truoc v sau cng RS
232 cho php diu khin tuxa ng vo cuamytnh. Mt cng my in tuy chon
cung c th duoc cung cp o mt sau.GDP l mt h thng bao v da chuc nng,
tch hop, tit kim khoangtrng. N c cu tao kiu module cho php d thuc
hin. N c th duoc sudung voi cch du Y Y hoc tam gicmo duoc ni VTS v
bt ky su lunphin pha no.BAO VJ V DI EU KHI ENDng khng di xngC nhiu
nguyn nhn gy ra su mt di xung trong my pht din: dophu tai, do cc su
c cua h thng v cc mach din mo. Thnh phn thu tunghich cua dng din
stato ( I2) truc tip tuong tc dn su mt cn bng
nyvxclpmttuthngquaynguoclai trongmy.Diunylmnngcucbtrongloi
thprto.Khanngcuamyphtchnglai
suphtnhitnyduocmtamtcchtiubiutrongccshangcuahngsI2tvGDPdnghngsnydcungcpccdctnhhoatdngtheothoigian.Mtdc
tuyn phuchi duoc su dung gn dng d khoi dng lai my pht theodiu kin
dng gin doan khng di xung. DGP cung bao gm mt dng hTH: Nguyn Khc
DuDGP c th bao v my pht khi dang lmvic nho vo dng khng cn bngBao v
so lch statoChucnng ny chun bi dy du chovicbaov tc d cao cuamypht
din trong khi xayra su c cham pha pha bn trong v su c ba pha .N dng
cun hm voi dc tnh hai d dc. Chuc nng ny c th bao v phacham dt,
trung tnh my pht duoc ni dt hoc MFD khc hoat dng songsong duoc ni
dt.Bao v d|nh hung cng
sutNumttruyndngsocpcucbhoctonphnthdndncngsutsinh ra giam hon lc MFD
khng tai cng sut thuc s truyn cho my phtdin. Cng sut thuc c th thp
hon 0,5% cng sut dinh muc cua my phttua bin hoi dn 100% di voi tua
bin kh v thuy luc.GDP gm c mt hoc hai chuc nng chng cng sut nguoc
voi nhung diuchinhtrthoigianringbit.Mttrongccbuocmbaovdinhhuongcng
sut nguoc c th duoc su dung cho vic ngt tun tu my pht m tuabin s bi
ngt du tin. Buoc ny c th xay ra khi dng van ng vo tuabinmn duoc chi
thi bng ng vo k thut s. Thu tu ngt duoc tip tuc khithoi gian tr
cuan tri qua. Chuyu lbuoc thuhai dinh cung cp du truchovicngttun
tu.Nuvicngttun tu khngxay rathhai thitbi cth duoc dng nhu l hai
chuc nng baov cng sut nguoc c b tnh giodc lp.Bao v qu dng din do
chm
dtChucnngbaovqudngnguoccthduocdngdtchsucstatochamdttronghthngmyphtcdintronidtcaohocthp.Khichucnngnydclpvoiccngvodngdinpha,ncthnibo
khng cn bng v dngdin voi mt dng kch c thdiuchinhduoc v tr thoigian
m n hoat dng duoc nhothnh phn thu tu nghich I2.TH: Nguyn Khc Dulun
phinvoimtbin dng(CT)trongdy trungtnh cuamy tngthMFDBao v qu dng din
theo thi gian c s hn ch din
pMththngphaiduocbaovdchnglaivicphtdinkodicua my pht khi trn h thng
c su c. Mt chuc nng bao v qu dng
ckimchdinplbphncuahthngDGP,chuyulcungcpmtphn bao v du tru cua h
thng. Chuc nng ny duoc diu khin boi mt btch su cvtrang thi VTFF (cu
ch my bin p bi dut). Mt thut tondclp duocxul chomi pha, csuhan
chduoc cung cp boi din ppha ph hop. Vic han ch th ty l voi d lon
cua din p v dc lp voi gcpha. Cc thng s cua dc tnh hi phuc duoc kt
hop voi chuc nng ny.Bao v khi stato b| chm dtChucnngny
baogmhaivngtrngnhaudtch
ccsucstatochamdttronghthngmyphtnidtctrokhngcao.Bnhthuongtrung tnh
cua stato c mt din th xp xi voi din th dt. Khi su c stato bicham dt
xay ra th mt din th tng lntrn trung tnh cua tt ca ccnoic su c ngoai
tru nhung noi gn trung
tnh.Vng1dngsuqudinptrungtnhctnscobandbaovchung 95% dy qun stato,
tuy thuc vo vic dt lai din p khoi dng.Vng 2 ( 64 G2 ) dua trn vic
tnh ton sng hi bc ba cua din p otrung tnh my pht, so snh voi tng s
sng hi bc ba cua din p pht
ra.Chucnngnyduocthitkdbaov15%cuadimcuitrungtnhcuady qun stato v
duoc diu khin boi cc ngung din p cua sng hi
bcba.CcdunicuamyphtnikiuY.Y ( VTS )ldiukind64G2hoatdng dng,chucnng
baovkm din ptrung tnhsnghibcbacua27TNcthsudungo vng2nudngcchni (
VTS),haivngcngbaov100%dyqunstato.Lunphinnhau,vng1cthduocdng nhumtmy
d cham dt theo duong truyn cuamy pht trong mth thng khng ni dt hoc
ni dt c tro khng cao.TH: Nguyn Khc DuDGP dng haivng xen kenhau d d
racc su cocham dat cuastato.Vng 1(64G1)95%Vng 2(64G2)15%Di m trung
t nhBao v thit b|87GBao v so lch mypht46 Dng khng cn bng40Mt kch
t32D|nh hung cng sut51VQu dng theo thigianc kim chdin p64G100%
stato b| chm dt51GNQu dng do stato b|chm dt27TNTrung tnh km psng hi
bc ba24 Qu kch t59 Qu din p27 Km p81 Qu v km tn s50/27Np nng lung
ngunhinVTFFCu ch b| dt khi cs c my bin pSO DO KHI CC CHUC NNG BAO
VJTH: Nguyn Khc DuBao v mt kch tDc dim ny duoc dng d d tm mt kch tu
omy pht dng b,khimy phtdng bmtkch
tunckhuynhhuonghoatdngnhumtmyphtcamung.Lcdnshoatdngtrntcdbnhthuong,cngsut
giam, v nhn duoc cng sut phan khng (vars) cua h thng.Tng
troduocnhnbitnhomtrolenivoimtmyphtsphuthucvoccthngsmypht,taismttruockhimtkchtu,vcloai
khngmtkch tu duoc.Chucnngmtkchtugmhaidctnh mho,midctnhcthdiu chinh
kha nng, b v tr thoi gian. GDP s kha chuc nng ny nu ntm ra mt din p
thu tu nghich m din p ny s bo cho bit cu ch bosu c my bin p bi hu (
VTFF), hoc mt tn hiu VTFF bn ngoi.Chucnng mhocuavng
thunhtcthduocdtdnhnbitcctruong hop rt xu, mt kch tu voi mt thoi
gian tr ngn. Vng chuc nngmho thu hai c th duoc dt d tm tt ca cc
truong hop khng kch tu duocvoi voi mt su cidt thoi gian tr di
hon.Diuny cho php su an toncua h thng trong diu kin cn bng n dinh
cua h thng nng luong.Bao v qu kch tDGP dng s luong Vn/Hertz d nhn
bit tnh trang qu kch tu, nty l voi tu thng trong my pht din v cc
loi thp cua my tng th.
Baovqukchtugmccchucnngngtvbodng.Chucnngngtbaogmmtchucnngphuthucvmtchucnngtucthoivoidctnhtrtheo
thoi gian. Cahai chucnng ngt v bo dng duoc tnh ton cho tungpha
trong din p ba pha. Chuc nng ngt kt hop voi mt dc tnh phuc hituyn
tnh d theo d khoi dng lai my.Bao v qu p v km pChuc nng bao v km pgm
mt su km p cua thnh phn thu
tuthunvoimtdctnhtheothoigianxcdinhhockhngxcdinh cthchonguoi
sudungluachon.Chucnng baovqupgmmtsuqupcua thnh phn thu tu thun voi
mt dc tnh phu thuc. Mt dc tnh phuchi tuyn tnhkthopcahai
chucnng.Chucnng qu pcthxem nhumt du tru cho qu kchtu.Chucnng km
pvngnlinvoi vicchunbi dy du su bao v nguoc pha din p.TH: Nguyn Khc
DuBao v qu tn s v km tn sChucnngnycung cpdnbn buocdbaovkm tnsvqutn
s, mi buoc c th diu chinh tr thoi gian. Cc buoc qu tn s v kmtn s
duoc diu khin bng mt muc din p cua thnh phn thu tu thun cth diu
chinh duoc.Cu ch dt do s c my bin p (VTFF)Chuc nng mt kch tu v qu
dng theo thoi gian voi chuc nng kmch din p c th hoat dng v mt din
th AC mt phn hay ton b hocnhiucu chroixung bocsuc.Khitm thycu
chbidut,DGPskho ngt boi cc chuc nng ny.Bao v d|nh hung cng sutH
thng DGP dng logic ni d nhn bit vic dinh huong cng sutcuamy pht
din. Khi ngunglai hoctcd giam mmy pht din duocnap nng luong th n s
chay v nhanh tro thnh dng co cam ung v diuny c th lm hu my. Din p v
dng din trn cuc cua mytrong khi csu kin nhu vy s l mt hm cua my pht
din, my bin p, v tro khngh thngD|nh dng cc ng vo / ng raGDP cung cp
tng cng 8 ro le ng ra c th dinh dang duoc, 4 ro le ngtv 4 ro le bo
dng. Cc ro le ng ra ny cho php nguoi su dung chon theo mun cua mnh
bt cu su kt hop no cua cc chuc nng. M cc chucnng diu khin cua GDP c
th hoat dng c tnh lua chon bt cu ci noChuc nng cua DGP c thvan hnh
ng ra role tai chohay tu xaDGP gm hai tip dim ng vo bdi din. Cc ng
vo ny cho phpni d dng tip dim ngt v bodng o bn ngoi tao nn su tin
loicua qu trnh cc logic su kin vcc ng ra dinh dang cua GDP. Mtcu
hnh tuy chon cung c th thuchin duoc cho mt ng vo b sungd lm v hiu
tt ca cc su baov boi ng vo.TH: Nguyn Khc Dutrong cc ro le ng ra d
dinh vi tr hoc diu khin tu xa . Vic ny di hoic mt password d ti
thiu ho cc tc dng khng duoc php. Remotediu khin cung c th khng su
dung bng tay m bng mt b kim trabng mach din tu.Logic c th d|nh dng
ducDGP cho php bot di nhung logic ni c tnh chin luoc d tao thunloi
cho su an ton vtin cy. Vicny cthhon thnhnho ci dt phnmmhoctudng
boimttipdimngvo 'generatoroffline'.Dcdim ny cho php v hiu cc chuc
nng d lua chon khi my pht off-linev lm giam tin trnh nap nng luong
ngu nhin.B tip dim mo rngGIMST VDODACCc chn don v t kim
traDGPthuchinccthutuctuchndonvmorngtrongkhimypht tng cng sut v tip
tuc lm vic. Bt cu su c no tm thy cung
duduocphnloaigingnhumtbodngtoihanhockhngtoihan.Ccchucnng
baovthchhopkhngththuchin tudngtrong khicmtbo dng toi han, gip cho
vic duy tr tnh an ton cao cua
DGP.DGPcungcsnmtmenudkimtrarolequabangkeypadphatruocpanenvmnhnh.Diuny
taothunloi choviccidtduocchophpthuccchucnngbaovringvccrolengra
chovickimtrangt c hiu cua h thng bao v.B DEC 1000 l mt b tip dimmo
rng thng minh. Khi phu kin tuychon ny duoc ni voi cng in cua DGP,
ncung cp 11 ro le ng ra b sung, 5 tipdim trong cu hnh ( C ) v 6 tip
dimthuong mo, 11 dn bo led duoc cung cpd ghi lai su hoat dng cua tt
ca cc tipdim. Mt nt reset duoc cung cp d kimtra v dt lai dn bo chi
c th thuc hinduoc boi kiu (CA).Bo DEC 1000TH: Nguyn Khc DuGim stmch
ngtGim st mach ngt bao gm kim tra din p ngt ( TVM ) v kim
tradngdinngt(TCM)trn4tipdimngra.TVMnhnbitbtkysugin doan no trong
mach ngt bn ngoi v pht ra mt bo dng khng toihan.Kim tradng
dinngtxcdinhnngluong cuamachngtkhi DGPdua ra vic ngt mach. D bao v
cc tip dim ng ra TCM cung dng duhiu vo d quyt dinh ngt chm ng ra
bng dng din ngt chay qua.Do dcDGP cung cp nhung gi tri do duoc
sau:Dng din ( Ia , Ib , Ic )Din p ( Va , Vb , Vc hoc Vab , Vbc ,
Vca )Gc lch pha cua I v VDng din thu tu nghich ( % I2 )Sng hi bc ba
cua din p ( Ph / Neut ).Watt ( 3 pha )Vars ( 3 pha)Tn sCc tip dim
ng vo (trang thi)Dng din, din p, cng sut tc dung, v cng sut phan
khng cung duocdo ging nhu cc gi tri so cp hoc thu cp v c cp chnh xc
3%.Ghi li tun t nhng s kin100 du kin moinht duocgn linvoi thoi
giangn nhtmiligiy vluutrutrong bnhocuaDGP.Ban dukin baogm cchoat
dng cuaccbphn chucnng, cc bo dng tu kim tra v cchoat dng cuanguoi
diukhin.DuliucuadukincthquacccngRS232cungttnhuquacngcuamyintuychon.Danhschmorngcuaccdukinvoinhungchungminhthoi
gian chnh xccung cpduliu nhanhvhiu qua cho suphn tch cc du kin ngt
d gip ti thiu ho thoi gian.TH: Nguyn Khc DuCc bang bo s cDGP luu
giu toi ba bang bo co su c moi nht trong b nho.Bt ky
ngtchucnngbaovnohocmtngvotriggerbnngoinoduphtramt tn hiu bo su c
trn bang.Dao dng kPHAN CUNGH thng DGP duoc dt trong mt ci hp cao
8RU, rng 19 inch. Loaicth c hoc khng cc khi kim tra. Cu trc cua hp
DGP l ra bn ngoichophpttcaccbangmachin,nguncungcp,vccmoduletuduocrt
ra khoi pha truoc cua ro le.CC GIAO DIJN VI NGUI SU DJNGBn phm v mn
hnhDGP cmtbnphm 20phmvmtmnhnhcdnledgm16ktucho php nguoi su dung d
dng tra cuu DGP v d thay di vic ci dt. Duliu do duoc, cc thng tin
du kin ngt v nhung ci dt khng duoc phphoc nguoi ta cn c hai
passwordbao v an ton tc dng toi diu khin.Cc dn chi th| ledHon 18 dn
ledduoc chun bi sn o mt truoc cua DGP d bo cc loai liTrn dao dng k
DGP c th luutru duoc 120 chu ky du liu, nhungdu liu ny duoc chia
thnh 1, 2,hoc 3 phn. Cc chu ky li truoctin thu duoc c th ln dn 20
chuky. B sung 12 dang sng analog( dng din v din p ), DGP thuduoc cc
co logic ni v tnh trangcc tip dim ng vo v ng ra.DGP dinh thoi dim
thu duoc cungtt nhu bo co su c duoc luu trunhu l mt phn cua du
liu.TH: Nguyn Khc Duv cc pha bi su c ngay lp tuc v d dng. C hai dn
led mu (do v xanhl cy) cung c sn d chi thi tnh trang cua ro le.S
giao tipHaicngRS232csntrnDGP,mtcngophatruocvmtcngopha sau. Cng pha
truoc cho php d dng giao tip voi nguoi su dung taich nho mtmy
tnhxch tay. Cng sau c th giao tipvoi mt my tnhtu xa nho mt b giai
m. C bamuc password d bao v an ton chun bichovic trao di thng tin
tuxa. Ccdy dn cung an ton duoc thm voc th khng cho php thay di su
ci dt v diu khin hoat dng cua
mytnh.Dktnisulinlactuxa,DGPchophpluachonbgiaimGEhocgiaothucModbus.Migiaothucduoccungcpboimtbangcopyphnmm
lin lac tu xa GE LINK. Thm vo phn mm GE LINK mt bangcopy phn mm DGP
DATAcung duoc cung cp bng mt ro le d chogiaodng kphn tch
duliu.Ncthduocdng dvsodvphntch file du liu duoc khi phuc lai tu
DGP.* Chi c Modbus sn sng d dng voi CA. Quy dinh tuy chon cngRS 485
hoc RS 232.* Phin ban Window moi cua GE LINK cung cho giao thuc
Mobus.Vic dng b ho thi gianMtngvoIRIGBsncchophprolelm dngbdnghcua n
voi dng h tnh thoi gian v tinh. Diu ny chc chn rng tt ca cckt qua
dc trung cua thoi gian th ph hop voi ton b h thngTH: Nguyn Khc
DuNHNG DAC DIEMMAT TRUCModule giao din ngui myMn hnh c 16 digit
apha-numeric d bo li, cc gi tr| doduc, tin nhn bo dng, ci d}t cc
thng s v..v.Bn phm c 20 phm d ngui su dng giao tip thn thinti ch vi
DGPDn led mu dng di chi th| tnh trng cua r leCng RS 232 thun tin
cho vic ni vi my tnh xch tayCc module ngunDuc d}t sau nphp. Module
PS 2 thtuy chnNg vo k thut sv module bo hiu(DI T)Module dn led
chith| tt ca cc chcnng hot dng trongkhi c mt s kinngt.Cc module
ttrung ( MGM )Hai module gingnhau cha CT`S,VT`Scc r le ngra v.v l
nhng linkt c th thay diduc.Cc khi kim tra tuy chnTo thun li cho vic
gn vo cc tnhiu ng vo tuong t v gim st ccng ra DGP cho mc dch kim
tra mkhng cn dy dn t trung gy nhiu.Cc moduleXu l h thng
(SSP)Giaodin tuong tu (ANI)Du liu thu duoc (DAP)Cc module xu l tn
hiu s( DSP) l nhung loai c th gn vod d dng sua chua hu hong.TH:
Nguyn Khc DuMAT SAUCng giao tip RS 232( PL 1)Chun b| sn d ni tib
giai m d giao tipt xa ho}c mt giao dinvi h thng.Cng tuy chn ( PL
2)C th duc dng d nivi mt my in d in dliu bng tay ho}c t dngho}c ni
vi mt b tipdim mo rng DEC 1000Cng giao tip tuy chn( PL 3 )C sn cho
tn hiu ngvo IRIB - B d dngb ho dng h bntrong DGP vi ccdng h chung
khcnhu h thng thu nhnGPS .Cc tip dimcua r le ng ra8 ro le cthdinh
dang8 ro le dduoc xc dinhtruocCng sut diukhinNg vo diukhin cng
sutDCCc ng vo CT( bin dng )6 ng vo CTd do pha1 ng vo CTd do dngdin
r1 ng vo CTd do dngdin r / trungtnhCc ng vo s3 ng vo c tip dimdinh
dang duoc3 ng vo c tip dim dxc dinh truocCc ng vo VT ( my bin p)Cc
ng vo VT d do dinp 3 pha1 ng vo VT d do din ptrung tnhTH: Nguyn Khc
DuSO DO NI DY TIU BIEUTH: Nguyn Khc DuCC DAC DIEM KY THUAT CUA
DGPBAO VJIn = 1A In = 5ABao v so lch chung ( 87G):Dng khoi dng so
lch 0,04 0,2A0,2 1.0A% h s dc1 101 10Dng khng di xng ( 46A,
46T):Dng khoi dng thu tu nghich: 0,01 0,60A0,5 2,99AHng s my ( 46T
):1 451 45Lm tr thoi gian bo dng ( 46A ):1 9 s1 9 sMt t trung ( 40
)Trung tm vng 1 v vng 2125 - 30025 - 60Bn knh vng 1 v vng 2125
-30025 - 60Dng h bo thoi gian vng 1 v vng 2: 0,01 9,99 s 0,01 9,99
sBao v cng sut nguc ( 32 1 v 32 2 tuy chn):Cng sut nguoc:0,1 -
20W0,5 9,99WLm tr thoi gian1 120 sBao v stato bj chm dt ( 64G1 v
64G2 tuy chn )Qu din p khoi dng trung tnh ( OV )4 40VLm tr thoi
gian ( 64G1 ):0,1 99 sLm tr thoi gian ( 64G2 ):0,1 99 sKm p trung
tnh sng hi bc ba (27TN)Dinh dim km p0,1 9,9VThoi gian tr0,5 99,9sQu
kch t ( 24T, 24I , 24A ):V/Hz khoi dng1 1,99PUH s thoi gian ( 24T -
nghich )0,1 99,99Thoi gian tr( tuc thoi )0 99 sThoi gian tr ( 24A
bo dng )0 99sTy l dt lai0 999 sKm p , tuy chn ( 27 ):Dim dt km p40
120VH s thoi gian0,1 99,99sChon dc tnhnguoc/thoi gian xc dinhQu p (
59 ):TH: Nguyn Khc DuDim dt qu p100 225VH s thoi gian0,1 99,99sQu v
km tn s, ln dn 4 buc ( 81 ):Dim dt qu tn s ( mi buoc )45 79,9HzDim
dt km tn s ( mi buoc )40 65,9HzThoi gian tr ( mi buoc )0,05 99,99
sThoi gian tr ( km tn s buoc 1)0,1 999,9 sH thng d tr ( 51V ):Khoi
dng qu dng0,1 3,2A0,5 16AH s thoi gian 0,1 99,99 s0,1 99,99 sNGUON
CUNG CPDin p diu khin DC:48VDC38,5 60VDC110/125VDC88-
150VDC220/250VDC176 300VDCDOD ACCc ga tr| d|nh mcTn s d|nh mc50 hoc
60HzTn s t hiu chinh 30 80HzDin p d|nh mc ( pha - pha )100-
210VACDng din d|nh mc:In = 1 hoc 5ADng din cho php ti da:Lin tuc
2InBa giy 50InMt giy100InDin p xoay chiu cho php ti da:Lin
tuc280VACMt pht( mt ln / mt gio)490VACTH: Nguyn Khc DuGI Y PH PFile
UL sE57838CP CHNH XCDo gi tr| hiu dng 3%Do gc pha 1 dDo tn s
0,01HzDng h thi gian 3% cua ci dtS phn giai tag thi gian cua d liu
1 mi li giyCC NG VOBurdenCc mch dng din0,022 5 cho In= 5A0,12 30
cho In= A60Hz 0,0507 < 4,738Cc mch din p0,30VA, 60Hz0,40VA,
50HzNgun DCNgun cung cp:19W voi 1 ngun25W voi 2 ngun Cho cc tip dim
o b dao din 2,5mA o din p dinh mucCC THIET BJ THU NGHIJMDin p thu
cch din2KV 50/60Hz trong mt pht2,8KVDC trong mt phtDin p xung ch|u
duc5KV dinh, 12/59s, 0,5JThu nghim nhiu ch|u ducSWC, trn ANSI
C37.90.1 v IEC 255 - 5Thu nghim d rung ch|u ducIEC 255 21 1TH:
Nguyn Khc DuGIAO TIEPD LIJU GIAO DIJNGiao din vi h thng:DB 25, cng
RS 232- mt sau panenDB 9, cng RS 232- mt truoc panenCng IRIG B mt
sau panen tuy chon Cng my in,mt sau panen tuy chonCC NG RAD LIJU
TIEPDIEMCc ng ra ngt( 4 ro le d lp trnh sn, mi ci c hai tip dim)Cc
tip dim ngtLin tuc, dng dinh muc 3AThuc hin v mang tai 30A trn
ANSIC37.90Dng ct tuc thoi = 60A h camLon nht l 250V hoc 0,5ACc ng
ra bo hi u( 4 ro le d duoc lp trnh v 5 ro le d duoc xc dinh truoc,
mi ci c mttip dim)Cc tip dim bo hiuDi han dng dinh muc l 3AThuc hin
v tai 5A trong 30 giyInterrupting = 60A h camLon nht l 250V hoc
0,5AD nhy gim st dng din ngt150mAGim st din p ngt38 300VDCCc ng vo
k thut s38 300VDC, 1 3mATH: Nguyn Khc DuK CH THUCB MO RNG DEC
1000CCDAC TNHHUNGDANVic bao v chu yu cho MFDXC l mt h thng bao v k
thut shop nht bao gm cc chuc nng bao v, diu khin, gim st, du don
vMI TRUNGDy nhit d xung quanh:Ct giu: 300C ~ +700CHoat dng 200C ~
+550CD m95% khng ngung tuDNG GITrng lung tinh:23kgKch thucCao14
(352 mm)Rng19 (484 mm)Su14 (356 mm)TH: Nguyn Khc Ducc kha nng trao
di thng tin. Muc d tin cy v an ton cao c sn nhothu tuc tu chn don
mo rng v cng sut ngun DC du thua tuy .Cc chuc nng bao v hoat dng
trn di t nht l tu 31 79Kz voicng cp chnh xc nhu o tn s h thng dinh
muc.Cc chc nng bao v bao gm:Bao v so lch stato cua MFD o tc d cao
(87G)Mt di xung dng thu tu nghich (46)Mt kch tu (40) voi hai vng dc
lpChng rung dng (32) voi hai buoc dc lp100% khi stato bi cham dt
(64G)Qu dng do stato cham dt (51GN )Qu kch tu (24)Qu p (59) v km p
(27)Qu v km tn s (81) voi bn buoc dc lpH thng du tru (51V) qu dng
theo thoi gian c km ch din pNap nng luong ngu nhin cua my pht din
trong khi hp s vndang quayCc chuc nng bo dng sn sng bo hiu cho
nhung truong hop:Mt cn bng v dng dinQu kch tuTu kim tra hu hongSu c
mt din th AC (VT fuse failure)Su c mt ngun cung cp DCTH: Nguyn Khc
DuCc thit bi bao v s c 6 ng vo bin di tip dim gm 3 ng vo cth dinh
dang duoc. N cung c 8 ro le c th dinh dang duoc v 6 ro lebo hiu d
duoc n dinh bao gm:4 ro le ngt c th dinh dang duoc mi ci c hai tip
dim.4 ro le bo dng c th dinh dang duoc mi ci c mt tip dim1 bo dng
tu kim tra bo dng nguy cp1 bo dng tu kim tra bo dng khng nguy cp1
bo su c mt din th AC1 bo cho mt ngun cung cp2 cho kim tra chuc nng
bao v ringCc thit bi bao v c gim st v cc chuc nng do luong bao
gm:100 du kin moi nht, thoi gian truy cp toi khoang 1 msBo co ba li
moi nhtDao dng k thu duoc toi trn 120 chu ky voi mt ty l mu dang
sngt nht l 12 mu trn giyDo dng din, din p, gc pha, dng thu tu
nghich, sng hi bc ba cuadin p,cng sut tc dung, cng sut phan khng,
tn s, tnh trang cctip dim ng vo.Thit bi bao v gm cc giao din voi
nguoi su dung sau dy:Cc dn led bo muc tiu ring bit cho mi chuc nng
bao v c mtnt reset chung trn mt truoc panen.20 phm d nhp ci dt, du
liu ng vo, v kim tra cc ng ra.Mn hnh led c 16 k tu duoc dng voi bn
phm cho tt ca cc chucnng trn v mn hnh tm tt tin tuc du kin v cc gi
tri xoay chiutrnh by theo dang cun laiMt truoc v mt sau cng du liu
RS 232 cho lin lac tu xa v cuc b,ci dt, tra cuu du liu, v diu khin
my ct tuy .TH: Nguyn Khc DuCng du liu my in tai chCng dng b thoi
gian IRIG BThu nghim v chuyn tip cc du ni cho dng din v din p
dangdua vo thu nghimThit bi bao v s dng cu trc dang module c th tho
ra hoc gnvo d d bao dung.DONDATHNGD chon kiu co ban v cc dc tnh
theo mun tu cc huong dn lua chonbn duoi.Luu rng ro le DGP c cu hnh
cng my in dc bit, duoc yucu voi loai DEC 1000 voi chuc nng chnh
xc.My bin di din su dung RS 485 toi RS232 tuy chon c th cho su
dungphin ban modbus DEC 1000ABao v my pht k thut sDng dinh muc
1ADng dinh muc 5AMt ngun cung cp: 48VDCMt ngun cung cp:
110/125VDCMt ngun cung cp: 220/250VDCHai ngun cung cp: 48VDCHai
ngun cung cp: 110/250VDCC khi kim tra, hp xmNgoi khi kim tra hp
xmGiao thuc lin lac bng b giai m GEGiao thuc lin lac Modbus ( khng
th thuc hinvoi nhm chuc nng A/B)Nhm chuc nng ANhm chuc nng BNhm
chuc nng CMuc xem xt laiTheo hung dn tuy chn cuaDGPTH: Nguyn Khc
DuHUNG DAN LJA CHN DGPV d: DGP 54 BBCA dng dinh muc 5A, 50/60Hz,
110/125VDC,ngun cung cp du thua, khng c cc khi kim tra gn vo giao
thucModbus, nhm chuc nng C, kim tra lai A. H thng DGP dc bit sau
dycung c th c. Lin lac voi nh my d c nhung yu cu dc bit khc.DGP***
AAA0101 tuong tu voi AAA ngoai tru cc ng vo k thut s cgi tri dinh
muc din p 1 pha, logic dc bit cho chuc nng 51V v cc duni tch bit
cho cc ng vo cua ngun.Nhm chuc nngCc chc nng v d}c dim A B CSo lch
stato 87GDng khng di xung 46Mt kch tu 40 1 2Qu dng c km ch din p
51VStato cham dt 64G1 (qu p co ban)Qu kch tu 24 (vn/ hz)Qu p
59Logic nap nng luong ngu nhinLogic ngt tun tuCu ch bao v su c my
bin pDao dng k thu duocNg vo IRIG BDinh huong cng sut 32Stato cham
dt 64G2 (sng hi bc bakm p)Qu dng dy trung tnh 51GNKm p 27Stato cham
dt 27TNKm tn s 81- UQu tn s 81 0Ng ra my inDEC 1000 tuong hopCng
giao tipxxxxxxxxxxxx2 dim dtx---4 dim dt4 dim
dtx-2-RS232xxxxxxxxxxxx1 dim dt-xxx4 dim dt4 dim
dt--2-RS232xxxxxxxxxxxx1 dim dtxxxx4 dim dt4 dim dtxx2-RS232
