Chng 4: CAC BAI TOAN NG DUNG

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N TT NGHIPI. TI:TNH TON BO V RLE CHO MY BIN P T2 TRM 110KV BNH INGio Vin Hng Dn : PGS.TS. L KIM HNGGio Vin Duyt : THS. L VNSinh Vin Thc Hin : BI VN QUNLp : 09D1I HC NNGTRNG I HC BCH KHOA KHOA INB MN H THNG IN2NI DUNG NChng 1: Gii thiu i tng bo v v cc thng s chnh ca trmChng 2: Tm hiu cc loi bo v trong trm bin pChng 3: Tng quan v Rle micom P632 trm bin p110kV Bnh in Chng 4: Tnh ton chnh nh Rle v kim tra s lm vic ca bo v

n tt nghipSVTH : V Hng Kng2Chng 1: Gii thiu i tng bo v v cc thng s chnh ca trm31.1. i tng bo v1.2. S nht th ca trm

C12C13TU174173-1173-4C11172-2172-3CS174CS171TU171174-7171-7171-3171-1174-4174-2131-3CS1T1CS131TE1901TU9H1222MWcosj =0.8510.5kVTU1T1CSTU9T1901-0TU9H11TU9T1941TU9TD91TU9TD92942TU9T2TU9H21902-0CSTU9T2TU1T210.5kVcosj =0.8522MWTU9H22902TE2CS132CS1T2132-3C14TU0H1TU0H2TUC11TUC12TUC13172171173174CS0T1TUC14CS0T2641601603602642643DZ6kV0,4kVCICIICIII0,4kV0,4kVChng 2: Tm hiu cc loi bo v trong TBA42.1. S phng thc bo v cho my bin p T2

5Nguyn tc bo v so lch

Dng in i qua rle bng: IR = iT1 iT2

2.2. Tm hiu bo v so lchChng 2: Tm hiu cc loi bo v trong TBA

SVTH : V Hng Kng6

2.3. Bo v so lch dc MBAChng 2: Tm hiu cc loi bo v trong TBA

773.1. Giao din v bng iu khin ca rle Micom P633

Chng 3:Tng quan v Rle micom P632 TBA 110kV Bnh in

n tt nghipSVTH : V Hng Kng7Bo v so lch (87): DIFFBo v chm t c gii hn (87G): REF-xBo v qu dng ct nhanh (50): DTOC-xBo v qu dng c thi gian (51): IDMT-xBo v qu ti nhit (49): THRM-xBo v km p, qu p (27/59): U Bo v qu tn, km tn (81 O/U): f Bo v qu kch thch (24): V/f83.2. Cc chc nng ca r le Micom P633Chng 3:Tng quan v Rle micom P632 TBA 110kV Bnh in

c tuyn ct ca bo v so lch r le Micom P633

93.3. chc nng bo v so lch

Chng 3:Tng quan v Rle micom P632 TBA 110kV Bnh in

104.1. Cc tham s cn quan tmBo v so lch Ik = kat.Ikcbmax Ikcbmax=(kkck.kn.fi+sudc).INngmax Dng in khi ng ca r le:

nhy ca r le:

Chng 4: Tnh ton chnh nh Rle v kim tra s lm vic ca bo v

11Bo v chm t c gii hn Ik = kat.Ikcbmax Ikcbmax= (kkck.kn.fi+sudc).3I0max Dng in khi ng ca r le:

nhy ca r le:

4.1. Cc tham s cn quan tmChng 4: Tnh ton chnh nh Rle v kim tra s lm vic ca bo v

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4.2. S v kt qu tnh ton ngn mch Loi NMCp in pIN (3)IN (2)

IN (1)IN (1,1)I0N (1)I0N (1,1)N215,986,877,3217,764,884,2N116,4418,1915,4212,960,9350,32Chng 4: Tnh ton chnh nh Rle v kim tra s lm vic ca bo v

13c tuyt ct xy dng cINngmax = 18190AINmin = 6870AIksl =3200AKn =

02468246810121.857.765.51m1 =0,3IRIrefId >IrefVng hmVng ctIIIIIIChng 4: Tnh ton chnh nh Rle v kim tra s lm vic ca bo v4.3. Tnh ton bo v so lch

m2 =0,7144.4. Tnh ton bo v chng chm t c gii hnc tuyn xy dng cI0max = 18190AIksl =3200Kn =

Vng khoVng Ctm = 1,0050.02.04.06.08.02.04.06.08.00.2c tuyn dng s cId,N/IrefIR,N/IrefHnh 4.2 c tuyn ct ca chc nng bo v dng chm t c gii hn

Chng 4: Tnh ton chnh nh Rle v kim tra s lm vic ca bo v15EM XIN CHN THNH CM N CHC THY C SC KHE