huongdanvanhanh_05

TRUNG TM TH NGHIM IN

TRUNG TM TH NGHIM IN

TI LIU HNG DN VN HNH

PHN: RLE-T NG

Nm 2005

Phn 1: Tng quan v cng tac thi nghim nhi th

Muc 1: Cac lu y v cng tac an toan khi thi nghim h thng nhi th:

I Yu cu chung:

1 Phai c s ng y cua ngi cho phep vao lam vic(nhom trng cng tac va/hoc nhn vin vn hanh)

2 Khi tip xuc/lam vic vi cac thit bi in phai tun thu Qui trinh an toan in

3 Phai nm ro pham vi lam vic, cng vic cn lam, cac thit bi lin quan i vi h thng nhi th(MC, DCL, DT, TU, TI, C, Van an toan)

II Khi lam vic trn i tng th nghim

1 Phai kim tra cac i tng cn thi nghim a c tip ia chn chn.

2 Phai kim tra H thng tu bang iu khin va bao v(h thng tu nhi th) c tip ia chn chn.

3 Khi thao, lp cac board mach trong cac rle ky thut s oi hoi phai tip ia tay

4 Phai nm ro lgich iu khin va bao v trong s , khi cn thit c lp mach ong, ct MC, DCL, DT tranh co s thao tac nhm trong luc th nghim thit bi, h thng mach t dng.

5 i vi cac i tng thi nghim(rle ky thut s, in t) oi hoi phai oc ky hng dn vn hanh thit bi/thng s ky thut trc khi cp ngun vao thi nghim.

6 Khi th nghim thit bi a chc nng co phn gi ct lin ng(chng han 50BF) nn khoa cac chc nng gi ct lin ng(chng han khoa chc nng 50BF)

7 Khi th nghim cac thit bi co lin quan n h thng t ng(Mach AR, mach t ng iu ap di tai, mach t ng ong ngun d phong, mach t ng iu chinh Cos) nn c lp cac u ra/u vao hoc ct ngun thao tac.

8 i vi cac thit bi ky thut s co gn Pin cn phai kim tra in ap, cc tinh Pin va lp ung cc tinh cua Pin.

9 i vi cac rle ky thut s co thit k cac u vao cn phai kim tra u ni, in ap, cc tinh cac u vao trc khi cp in cho rle.

10 Trong qua trinh th nghim thit bi khng nn thit bi ngm in lin tuc qua mc cho phep(dong in, in ap)

11 i vi cac rle ky thut s(a chc nng) nn thc hin cai t theo phiu vn hanh trc khi th nghim.

12 i vi rle ky thut s(a chc nng) co s dung chc nng 50BF cn lu y n cac yu t sau:

Cai t cu hinh u ra i ct,

Cac chc nng ang s dung nhng khng cho tin hiu ct(Kem ap, qua tai).

III Khi lam vic trn thit bi th nghim

1 Thit bi thi nghim phai c ni t chc chn.

2 Phai nm bt, hiu ro va tun thu ung Hng dn vn hanh thit bi trc khi s dung thit bi thi nghim.

IV Khi lam vic vi h thng mach dong in/in ap

1 Phai am bao h thng mach dong lun kin trong khi th nghim thit bi.

2 Khi th nghim co tin hiu u vao la ap thi phai c lp mach ap t TU vao thit bi, tranh xng ngc ngun ap v phia TU va am bao khng cham chp.

Lu y: i vi cac mach ap u song song, khi c lp chu y tranh h mach(mt ap) lam rle tac ng nhm(chng han rle Kem ap, Khoang cach, Kem tng tr). Khi cn thit phai c lp mach thao tac trc khi c lp mach ap(iu nay phai uc s ng y cua ngi cho phep).

3 i vi h thng mach dong c chum chung t nhiu TI. Khi th nghim thit bi phai c lp mach dong vao thit bi tranh gy dong in th nghim vao phn t ang mang in. Tuy nhin am bao mach dong ang lam vic vn kin

4 Khi thao, u ni mach dong c chum chung nhiu TI tranh cham chp vi nhau va cham vi t.

5 Khi u ni mach dong in/ mach in ap cn phai kim tra u t 1 u.

6 Kim tra mach dong in trong luc thit bi nht th ang vn hanh, tranh/khng c dt manh dy dong gy ra vic h mach dong.

V Khi lam vic vi h thng mach DC/AC

1 i vi cac mach cp ngun DC/AC phai kim tra u ung cc tinh, gia tri in ap, th t pha(i luc phai kim tra ng vi pha), kim tra cac ngun c lp vi nhau(khng ngun nay dinh vi ngun kia).

2 Khi thao, u ni mach DC/AC phai dung ng h o in ap/but th in kim tra co/khng co in ap.

3 Khi thao, u ni mach DC/AC co in phai thc hin ung qui trinh an toan tranh ngi tip xuc vi phn t mang in.

4 Khi thao cac u dy c qui phai c lp ht tai cung cp.

5 Khi th nghim phn iu khin/tin hiu(MC, DCL, DT, Quat mat) phai am bao

Thit bi cn thao tac khng mang in cao ap/khng ong vao im co in cao ap.

Khng co bt c ngi/vt dung trn thit bi

Thit bi a c lp t hoan chinh va a c thao tac khng in it nht mt ln.

Thc hin ung lgich iu khin thit bi.

6 Khi kim tra mach bao v i vi cac thit bi trn MBA(rle hi, dong du, ap lc, nhit ) phai am bao iu kin:

MBA a c lp khoi li.

Khng co th nghim cao ap i vi MBA

Cac phia MBA a ong tip ia/tip ia lu ng chc chn

i vi cac phia MBA co tu hp b thi cac tu hp b nay phai c keo ra vi tri thi nghim

i vi cac phia co DCL iu khin in thi phai ct cac ATM ng lc cua cac DCL trn ng thi cht c khi cua cac DCL o

7 i vi cac h thng iu khin, bao v dung ngun 1 chiu qua b nn va tu nap in. Khi thao, u ni phai lu y xa tu nap nhm tranh tu phong ngc lai gy mt an toan.

8 Trong qua trinh kim tra mach iu khin/tin hiu ma cn n vic m DT thi phai am bao iu kin sau:

Phai tip ia lu ng trc khi thao tac m DT hoc

am bao rng khng con ai cng tac trong pham vi c lp(ng dy, TC, MBA, Ngn xut tuyn) hoc

am bao rng cac trng hp bt thng khng gy xut hin in ap trn cac phn t ang c lp

9 i vi cac h thng iu khin bng mt xoay chiu 3 pha cn kim tra th t pha trc khi cho chay th.

10 i vi cac tu in co t in tr sy cn phai kim tra tri s t t sy tranh phat nong gy chay thit bi trong tu.

11 Khi th nghim tu charge/c qui trong 1 s ch cn phai c lp tai ang vn hanh tranh gy qua in ap lam h hong thit bi.

Muc 2: Cac bc thi nghim h thng nhi th

I Cng tac chun bi

1 Thu thp ti liu va chun bi thit bi thi nghim

2 Nghin cu ti liu va B sung hng dn th nghim mi

3 Chun bi va cp nht phiu chinh inh rle.

4 Chun b y cc dng c an ton theo quy nh KTAT-BHL.

II Thi nghim ring le

Thi nghim h thng nhi th co th chia ra lam 02 phn

Phn thit bi nhi th

Phn h thng mach.

1 Thi nghim thit b bao gm:

Th nghim t chnh lu (nu c).

Cc thit b bo v, iu khin trn cc t bng v ni b t

2 Thi nghim mch bao gm:

Thc hin cng vic kim tra tt c cc mch lin quan n thit b.

Kim tra cp theo bn v u ni.

Kim sot cp ng theo s nguyn l.

3 X ly s liu thi nghim:

S liu th nghim phi c cp nht vo bin bn th nghim.

nh gi cht lng thit b da trn cc tiu chun k thut ca nh ch to.

nh gi mch v thit b lm vic ng chc nng

Khi nhn c thng tin x l tn ti yu cu cc t th nghim li phn a x ly

III Th nghim tng mch :

Cng vic c tin hnh khi cng vic kim tra thit bi va kim tra mach a hoan thanh.Cac cng vic cn thc hin bao gm:

1 Tng mch mt chiu (phn iu khin v bo v)

2 Tng mach xoay chiu(phn bao v Rle)

3 X ly s liu thi nghim:

nh gi tnh logic ca cc h thng so vi bn v thit k logic.

nh gi kh nng lm vic n nh v ng n ca c h thng rle bo v v iu khin da trn bn v thit k, yu cu thit b v phiu chnh nh ca iu .

Kt qu t c ghi vo cc biu mu (bin bn tng mch mt chiu, xoay chiu)

Kt qu khng t cn phai phn tch v xc nh nguyn nhn do:

Thit k cha ng theo yu cu ca thit b.

Thit b nhi th khng ph hp.

Cha ng b gia thit bi nhi th va thit bi nht th.

Phiu chnh nh cha hp l.

Cc l do khc .

Khi nhn c thng tin x l tn ti nhm cng tc tin hnh th nghim li phn a x ly.

IV Th nghim trn ti :

Cng vic th nghim trn ti c thc hin khi cc thit b nht th c a vo vn hnh vi li.

1 Cng vic kim tra trn tai thc cht la kim tra s lam vic ung n,n inh cua cac thit bi bao v theo yu cu cua nha ch tao thit bi

2 Kim tra s lam vic ung cua h thng mach dong, mach in ap.

3 X ly s liu

Kt qu kim tra trn ti c ghi vo bin bn th nghim thit b.

Khi kt qu bt thng hoc rle bo v lm vic khng ng th cn phn tich tim ro nguyn nhn do:

Thit b khng t khi lm vic trn ti.

Thit k cha ph hp.

Li cha ng.

Tr s chnh nh khng ph hp.

Li do th nghim.

V Hon tt bin bn:

Khi kt thc cng vic thi nghim phi thu thp, ghi chp y s liu vo cc biu mu quy nh.

PHN 2:

H THNG MCH DNG IN V IN P

CC S U NI MCH TU-TI

S U NI BIN IN P(TU):

S U NI BIN DNG IN(TI)

PHN 3:

NGUYN L IU KHIN IN MY CT

Gii tch nguyn l mch in my ct GL 107(ALSTOM)

Hnh v

S in:

Trn s c cc k hiu sau:

Y4 : Cun ng

Y1 : Cun ct 1

Y2: Cun ct 2

Rle K11 dng chng ng li nhiu ln(gi d)

Rle K14: Rle gim st kh SF6 gim thp cp 2(Lockout)

P: Rle p lc gim st kh SF6 gim thp

R2: in tr sy

M1: Mt dng tch nng l xo

S1.1 n S1.3 : Tip im ph my ct.

S2 : Tip im hnh trnh l xo tch nng

S3 : Tip im kha chuyn mch ch v tr Local/Remote

Ngun tch nng l xo c th dng DC : 220V c cp n Hng kp X1: 450-465

Cun ng, cun ct dng ngun 220VDC.

y m ngun cun ng, cun ct thit t n cc hng kp sau:

X1: 625(mch ng)

X1: 645(mch ct 1)

X1: 745(mch ct 2)

1 Nguyn l lm vic

Khi My ct v ct v c tch nng th :

Tip im S2 9-10(trong mch ng ) kn.

Cc tip im ph ca my ct S1.1: 11-12, ng kn.

Rle K1 khng in dn n tip im 21-22 kn

Khi khng c kh SF6 gim thp cp 2 th tip im 21-22, 31-32, 61-62 ca rle K14 kn

iu khin ti ch(Local)

Khi kha chuyn mch v tr Local th tip im 3-4, 7-8, 11-12 ca S3 kn cn cc tip im khc h ra

Lc ny nu c tn hiu dng a n Hng kp X1: 601, ng thi n kha ng S4(13-14, 43-44) dn n cun dy Y4 c in lp tc my ct thc hin chu trnh ng, ng thi lc ny l xo my ct s c tch nng.

Khi my ct ang v tr ng th tip im S1.1: 1-2 kn. Lc ny nu c tn hiu dng a n Hng kp X1: 603, ng thi n nt ct S5(13-14) dn n cun dy Y1c in lp tc my ct thc hin chu trnh ct.

iu khin t xa(Remote)

Khi kha chuyn mch v tr Remote th tip im 1-2, 5-6, 9-10 ca S3 kn cn cc tip im khc h ra.

Lc ny nu c tn hiu dng a n Hng kp X1: 610 dn n cun dy Y4 c in lp tc my ct thc hin chu trnh ng, ng thi lc ny l xo my ct s c tch nng.

Khi my ct ang v tr ng th tip im S1.1: 1-2 kn. Lc ny nu c tn hiu dng a n Hng kp X1: 630 dn n cun dy Y1 c in lp tc my ct thc hin chu trnh ct(mch ct 1).

Khi my ct v tr ng th tip im S1.1: 3-4 kn. Lc ny nu c tn hiu dng a n Hng kp X1: 730 dn n cun dy Y2 c in lp tc my ct thc hin chu trnh ct(mch ct 2).

Lu : Mch ct 2 khng ph thuc vo Kha chuyn mch v tr Local/Remote

c dung ngun ti hng kp X1: 601 v 603 thng ngi ta dng mch lin ng cho php thao tc ti ch l DCL 2 u My ct phi ct, cu hng kp 601 v 603 vi nhau.

Trong mch ct 1, 2 c s dng n tip im thng kn 13-14, 15-16. Chng dng ni n rle gim st mch ct khi my ct trng thi ct.

Mch tch nng l xo:

Khi l xo cha c tch nng th tip im 1-2, 3-4 ca S2 kn dn n Mt M1 c in lm tch nng l xo my ct.

Khi l xo tch nng y th cc tip im trn s h ra dn n ct mch in vo Mt in v chu trnh tch nng kt thc.

2 Mch kha lin ng my ct

Khi c tn hiu kh SF6 gim thp ti mc Lockout th tip im P(3-4) kn lm cho cun dy rle K14 c in, dn n cc tip im 21-22, 31-32, 61-62 h ra. Lp tc lm h c mch ng cng nh mch ct 1, mch ct 2(Ka thao tc my ct khi kh SF6 gim qu thp).

Khi L xo my ct cha c tch nng th tip im 9-10 c S2 h lm h mch ng ca my ct.

3 Gii thch mch chng ng li nhiu ln(gi d):

Khi nhn vin vn hnh n kha ng my ct, lp tc my ct chuyn sang trng thi ng sau mt khong thi gian tr hon t. Ti thi im ny nu xut hin s c trn li th bo v c khi to v cho lnh ct. Trong lc my ct c ct ra nu nh nhn vin vn hnh vn cn gi tay kha ng th my ct va nhy ra li cho lnh ng li v c th tip din nhiu ln. Hin tng m t trn gi l hin tng gi d.

chng ng li nhiu ln, trong mch ngi ta lp thm rle K11. Khi n kha ng, my ct chuyn sang trng thi ng lm cho tip im S1.1: 5-6kn, lc ny nu cn gi tay kha ng th rle K11 tc ng lm cho tip im 21-22 ca K11 h, 13-14 th kn. iu ny lm h mch ng, kha khng cho my ct ng li ln sau(cho d tay kha vn gi), ng thi tip im 13-14 ca K11 lm t gi rle K11. K11 tr v v c th ng li my ct phi nh tay kha ng.

MCH IU KHIN MY CT 3AP1

MC 110KV Lin Tr c th c ng / ct ti ch hay t xa nh kho la chn v tr iu khin S8 lp trong t MC. v tr iu khin t xa, n li c iu khin bi vic thao tc cc nt nhn ( kho ng ct ) trn bng iu khin hoc t h thng iu khin trung tm bng my tnh .

Rle trung gian K4, K48, K75 l nhng rle chng gi d.

Rle K10 gim st p lc kh SF6 ca MC. Bnh thng (kh SF6 ) rle thi gian K66 tc ng, khp tip im (15- 18) ca n tc ng n K10. Rle K10 s khp cc tip im thng h ca n thng mch cho cc qu trnh iu khin MC. Khi kh SF6 trong MC gim cp 1, tip im rle p lc B4 (11-13 ) khp -> bo tn hiu kh SF6 gim trn bng n trung tm knh B3 CB SF6 Alarm (110 KV). Nu kh SF6 gim thp cp 2, rle p lc B4 (21-23) khp tip im ngt in rle K69. Khi rle K69 tr v tip im (13-14 ) ca n m ra, gii tr rle thi gian K66. Sau mt thi gian xc nh chc chn s c kh SF6 gim cp 2, rle K10 mt in do tip im K66 (15-18) tr v lm h mch iu khin MC ng thi cnh bo trn bng n trung tm knh B4 CB SF6 Lockout (110KV ) .

S16 l tip im l xo MC .

1. Ch lm vic ti ch : Kho S8 v tr Local ( v tr II )

Bng cch n nt ng S9, cun ng Y1 c cp in qua cc tip im ph thng kn S1 ca MC, nu khi kh SF6 trong MC c cp ( rle K10 c in khp tip im 13-14 ca n ) ( MC ng ( tip im ph thng h S1 (63-64) khp li, rle chng gi d K75 c in, ngt mch ng nh vic m cc tip im thng kn ca n (61-61, 71-72, 81-82) trnh ngm cun ng .

Bng cch n nt ct S3, MC ang ng c tc ng ngt nh cun ct Y3 c cp in, lc ny iu kin kh SF6 vn phi tho mn. Cun ct Y3 c in ng thi rle K47 cng c cp in v ngt mch iu khin ng bng vic m cc tip im thng kn ca n (61-62,71-72,81-82) .

Mch ct 1 khi MC ng c gim st nh rle trung gian K2 trong khi rle gim st mch ct 741 v Mch ct 1 khi MC ct c gim st nh rle trung gian K2, K3 trong khi rle gim st mch ct 741 .

2/ Ch lm vic t xa : Kho S8 v tr Remote (v tr I )

-iu kin ca ch lm vic t xa :

+ Cc rle bo v khng tc ng ( Cc rle lockout 86T1, 86T2 khng c in khp cc tip im thng kn ca n ) .

+Lin ng an ton lm vic i vi cc Dao cch ly hai u MC ( phi ng Dao cch ly trc khi ng MC )

- ch lm vic t xa ta c th iu khin MC ti bang iu khin ca trm (ch Remote) hoc t h thng iu khin ti mt trung tm iu khin cch xa thit b (ch Surpervisory).

Khi ch Remote, vic ng MC c thc hin nh rle 52CXR, ct MC nh rle 52TXR . Khi ch Surpervisory, vic ng MC c thc hin nh rle 52CXS, ct MC nh rle 52TXS .

Hai ch ny l hon ton ging nhau ch khc v tr pht lnh iu khin MC .

Khi c lnh ng t xa (Remote hoc Surpervisory) vi cc iu kin lin ng bn ngoi c tho mn th cun ng Y1 c cp in v s lm vic ca cc b phn khc cng din ra hon ton tng t nh trng hp iu khin MC ti ch bng nt n trn MC.

Khi c lnh ct t xa, cng ging trng hp iu khin ct ti ch, cun ct Y3 c cp in, chp hnh lnh ct MC theo yu cu thao tc .

3. Trng hp ct bng bo v :

Rle bo v ct MC ( 86T1,T2 ) tc ng khp tip im thng h ca n a lnh ct n cun ct Y4 thng qua cc tip im ph ch MC ng S1 (223-224, 233-234, 243-244). ng thi cp in cho rle chng gi d K48 ngt mch iu khin ng MC.

Mch ct 2 cng c gim st trong 2 trng hp ng vi 2 trng thi MC nh rle gim st 742 vi c cu ging ht 741 .

4. S lm vic ca cc rle chng gi d :

K47 : Khi c lnh ct bng tay ti ch hoc t xa th rle K47 c cp in lm h mch ng (tip im thng kn 61-61,71-71,81-82 ca K47 h ) .

K48 : Khi c lnh ct t bo v, rle chng gi d K48 c cp in, ngt mch ng MC bng cch m cc tip im thng kn K48 ( 61-62,71-72,81-82 ) chng trng hp ng MC vo im s c .

K75 : Khi c lnh ng MC, v MC hoc ng xong hoc l xo MC khng cng (MC khng sn sng) m vn c lnh ng th rle K75 c cp in, ngt mch ng bng cch m cc tip im thng kn K75 (61-62,71-71,81-82 ) .

5.S ln thao tc MC : c m bi khi P1 lm vic theo s chuyn trng thi ca tip im ph S1 ca MC(ly tn hiu MC ng theo tip im thng h NO ca MC khp kn li)

S in My ct 3AP1:

Hnh trn trnh by mch ng v chng gi d ca My ct

Hnh trn trnh by cc mch ct 1 v 2 ca My ct

Hnh trn trnh by mch bo v SF6

Hnh trn trnh by cc tip im cnh bo tn hiu ca My ct

Hnh trn trnh by mch tch nng l xo v mch Sy ca My ct

Hnh trn trnh by cc tip im ph ca My ct

Tu may ct hp b

I Gii thch s nguyn l in ca my ct 3AH1

S in


Y9 : Cun ng

Y1 : Cun ct

Y11: Cun kha lin ng xe ln ca my ct


M: Mt dng tch nng l xo

S1 : Tip im ph my ct.

S10, S11, S12, S21, S22, S41, S42, S3 : Tip im hnh trnh l xo tch nng

Ngun tch nng l xo c th dng AC : 220V c cp vo Jack A1, D16


y m ngun cun ng, cun ct thit t n Jack B2, D2

1 Nguyn l lm vic


Tip im S12: 13-14(trong mch ng ) kn.

Cc tip im ph ca my ct S1: 11-12 ng kn.

Rle K1 khng in dn n tip im 21-22, 31-32 kn

Lc ny nu c tn hiu dng a n Jack A2 dn n cun dy Y9 c in lp tc my ct thc hin chu trnh ng, ng thi lc ny l xo my ct s c tch nng.

Khi my ct ang v tr ng th tip im S1: 23-24 kn.Lc ny nu c tn hiu dng a n C2 dn n cun dy Y1c in lp tc my ct thc hin chu trnh ct.


Khi nhn vin vn hnh n kha ng my ct, lp tc my ct chuyn sang trng thi ng sau mt khong thi gian tr hon t. Ti thi im ny nu xut hin s c trn li th bo v c khi to v cho lnh ct . Trong lc my ct c ct ra nu nh nhn vin vn hnh vn cn gi tay kha ng th my ct va nhy ra li cho lnh ng li v c th tip din nhiu ln. Hin tng m t trn gi l hin tng gi d.

chng ng li nhiu ln, trong mch ngi ta lp thm rle K1. Khi n kha ng, my ct chuyn sang trng thi ng lp tc l xo my bt u tch nng. iu ny lm cho tip im S3: 21-22 kn, lc ny nu cn gi tay kha ng th rle K1 tc ng lm cho tip im 31-32 ca K1 h, 13-14 th kn. iu ny lm h mch ng, kha khng cho my ct ng li ln sau(cho d tay kha vn gi), ng thi tip im 13-14 ca K1 lm t gi rle K1. K1 tr v v c th ng li my ct phi nh tay kha ng.

Trong bn v nguyn l cn ch ra cc tip im

S6(11-12) ni tip S7(21-22) ch th my ct b Trip. Khi c tn hiu ct gi n cun ct lm cho tip im S6(11-12) kn a tn hiu cnh bo my ct b ct bng in. Cn khi n nt ct bng tay(c kh), tip im S6 kn nhng S7 li h dn n khng cnh bo tn hiu my ct b Trip

II Gii thch s mch in my ct VB ALSTOM

S in:


Y11 : Cun ng

Y01 : Cun ct1

Y02: Cun ct 2

Y13: Cun kha lin ng xe ln ca my ct


M1: Mt dng tch nng l xo

S11, S21, S31 : Tip im ph my ct.

S4 : Tip im hnh trnh l xo tch nng

Ngun tch nng l xo c th dng DC : 220V


y m ngun cun ng, cun ct thit t n Jack X1: 6, X1: 16 va X1: 26

1-Nguyn l lm vic


Tip im S4 15-16(trong mch ng ) kn.

Cc tip im ph ca my ct S11: 11-12 ng kn.

Khi khoa S8 my ct khng vi tri Block th tip im S8 kn

Rle K1 khng in dn n tip im 21-22 kn

Lc ny nu c tn hiu dng a n Jack X1: 5 dn n cun dy Y11 c in lp tc my ct thc hin chu trnh ng, ng thi lc ny l xo my ct s c tch nng.

Khi my ct ang v tr ng th tip im S11: 1-2 va 3-4 kn. Lc ny nu c tn hiu dng a n X1: 15 hoc 25 dn n cun dy Y01 hoc Y02 c in lp tc my ct thc hin chu trnh ct.

2-Mch kha lin ng xe ln my ct

iu kin co th di chuyn xe ln ra ngoai la cun hut Y13 co in

3-Gii thch mch chng ng li nhiu ln(gi d):


chng ng li nhiu ln, trong mch ngi ta lp thm rle K1. Khi n kha ng, my ct chuyn sang trng thi ng lm cho tip im S11: 5-6 kn, lc ny nu cn gi tay kha ng th rle K1 tc ng lm cho tip im 21-22 ca K1 h, 13-14 th kn. iu ny lm h mch ng, kha khng cho my ct ng li ln sau(cho d tay kha vn gi), ng thi tip im 13-14 ca K1 lm t gi rle K1. K1 tr v v c th ng li my ct phi nh tay kha ng.

Trong mch ct Y01 ca my ct c s dng n tip im S11: 13-14 thng kin.Muc ich nay dung cho chc nng giam sat cun ct trong ca 02 trng hp: may ct trang thai ong va ct

III Giai thich s nguyn ly in may ct LVB

S in


C : Cun ng

TC : Cun ct chinh

TC1: Cun ct phu

Rle Y dng chng ng li nhiu ln(gi d)

M: Mt dng tch nng l xo

52a, 52b, 52A : Tip im ph my ct.

S2, LS3: Tip im hnh trnh l xo tch nng

LS4, LS5, LS6, LS7: Tip im hanh trinh xe ln

LCS1: Tip im cht khoa may ct

LC1: Tip im lin ng trong mach ong

Ngun tch nng l xo c th dng DC : 220V


y m ngun cun ng, cun ct thit t n Jack A4, A6, 12

Mach cp ngun cho mt tich nng lo xo: A1- A2

1-Nguyn l lm vic


Tip im LS3: 1-2(trong mch ng ) kn.

Cc tip im ph ca my ct 52b: 30-31 ng kn.

Khi my ct khng bi khoa cht th tip im LCS1: 1-2 kn

Rle Y khng in dn n tip im Yb: 1-5 kn

Lc ny nu c tn hiu dng a n Jack A3 dn n cun dy C c in lp tc my ct thc hin chu trnh ng, ng thi lc ny l xo my ct s c tch nng.

Khi my ct ang v tr ng th tip im 52A: 6-6 va 52a: 6-6 kn.Lc ny nu c tn hiu dng a n Jack 11 hoc A5 dn n cun dy TC1 hoc TC c in lp tc my ct thc hin chu trnh ct.

2-Mch kha lin ng my ct

Khi khoa c lt sang vi tri khoa thi no se khoa vic thao tac may ct, ng thi lam cho b tip im LCS1 chuyn trang thai.

Khi lo xo may ct cha c tich nng thi tip im LS3: 1-2 h dn n khoa mach ong may ct, ng thi tip im S2: 3-4 thi kin lam cho mt c cp ngun tich nng cho lo xo.



chng ng li nhiu ln, trong mch ngi ta lp thm rle Y. Khi n kha ng, my ct chuyn sang trng thi ng, ng thi lo xo c tich nng lm cho tip im LS3: 3-4 kn, lc ny nu cn gi tay kha ng th rle Y tc ng lm cho tip im Yb: 1-5 ca Y h, con tip im Ya: 4-6 th kn. iu ny lm h mch ng, kha khng cho my ct ng li ln sau(cho d tay kha vn gi), ng thi tip im Ya: 4-6 ca Y lm t gi rle Y. Y tr v v c th ng li my ct phi nh tay kha ng.

Trong mch ct TC ca my ct c s dng n tip im phu 34-35 cua may ct. Muc ich dung cho mach giam sat mach ct ca trang thai ong va ct.Trong bn v nguyn l cn ch ra cc tip im

S4, S5 ch xe ln my ct v tr Test

S6, S7 ch xe ln my ct v tr Run

PHN 4:

PHNG THC BO V

Phn 4: Phng thc bo v

CC K HIU BO V THNG GP

21 : Rle bo v khong cch.

23 : Thit b kim tra nhit .

25 : Rle kim tra ng b.

27 : Rle bo v km in p.

32 : Rle bo v hng cng sut.

37 : Rle km dng hoc km cng sut.

40 : Rle trng.

46 : Rle bo v dng th t nghch hoc dng khng cn bng.

47 : Rle in p th t pha.

49 : Rle bo v qu ti.

50 : Rle bo v qu dng in ct nhanh.

51 : Rle bo v qu dng in thi gian tr.

55 : Rle h s cng sut.

59 : Rle bo v qu in p.

60 : Rle in p hoc dng in cn bng.

62 : Rle thi gian.

64 : Rle d chm t.

67 : Rle bo v qu dng in c hng.

68 : Rle kha.

74 : Rle cnh bo ( v d gim st cun ct).

76 : Rle qu dng in DC

78 : Rle o gc pha hoc ct tng bc ( v d d dao ng cng sut)

79 : Rle ng lp li.

81 : Rle tn s.

82 : Rle ng lp li DC.

85 : Rle truyn hoc nhn truyn.

86 : Rle kha u ra.

87 : Rle bo v so lch.

90 : Thit b iu chnh ( v d rle t ng iu chnh in p).

94 : Rle ct.

87T

50/51

50N/51N50/51

35/22kV 6300KVA

23-1; 23-2

96-1; 96-2

90

S PHNG THC BAO V MAY BIN AP 35/22KV

Phn xng Rle - T ng

64

F50-50N

F51-51N

F67-67N

F81

F79

S PHNG THC BAO V XUT TUYN 35KV, 22KV

Phn xng Rle - T ng

PHN 5:

GII THIU H THNG LGCH MCH

HNG DN LGCH IU KHIN, TN HIU MC-DCL

Xem ph lc 1

HNG DN LGCH BO V MBA-XT

Xem ph lc 3

HNG DN LGCH MCH IU KHIN QUT MT

MCH QUT MT MY BIN P

I.Gii thiu chung :

- MBA lc trong qu trnh lm vic thng gy pht nng cc b. Nhit lm vic ca du MBA v ca cun dy MBA lun c gim st lin tc nh cc ng h o nhit gn thn MBA. Cc ng h ny ngoi vic gim st nhit du, nhit cun dy MBA cnh bo tn hiu hoc i ct cc MC nhm bo v MBA cn c tc dng khi ng v dng h thng lm mt MBA.

- H thng lm mt MBA c th lm vic t ng theo s phn ng ca cc ng h nhit vi s thay i nhit du MBA hoc lm vic bng tay theo s iu khin ca nhn vin vn hnh trm.

- Cc phng php lm mt i vi MBA : - lm mt bng nc v du tun hon

- lm mt bng khng kh .

- lm mt bng cng bc du v khng kh.

- i vi cc MBA trong cc trm bin p trung gian, truyn ti hay phn phi thng dng phng php lm mt bng khng kh .

II.Din gii :

MBA 110KV Lin Tr : 110/22KV- 25MVA, c lm mt nh mt h thng 06 qut mt khng kh iu khin bi cc ng c 3 pha 380VAC.

Hai ch lm vic ca h thng l Manual (Bng tay) v Auto (T ng) c la chn nh v tr ca kha la chn 43-FAN .

ch Manual, qut mt c th c khi ng hoc dng ti ch (t iu khin qut mt MBA gn cm MBA ) hoc t xa (t iu khin trung tm trong nh). Hai nt n STOP (01 ci lp ti t MBA, 01 ci lp ti t iu khin trong nh) mc ni tip nhau cho php dng qut ti bt k v tr no khi c yu cu. Vic khi ng qut ti ch c thc hin nh nt n S02 v c duy tr lnh khi ng qat nh tip im ca rle trung gian K01. dng qut c th n nt S01 ti t MBA hoc kha STOP (52-FAN) ti t trong nh. Tng t vic iu khin chy qut ti phng iu khin c thc hin nh kha START (52 - FAN) v dng theo hai cch nh trng hp ti ch. S tc ng ca rle trung gian K01 s cp in cho khi ng t K1.

ch Auto, qut mt c th khi ng v dng nh cc ng h nhit 2 tip im tng ng vi 2 cp nhit , 1 cp dng khi ng v 1 cp dng qut. Tip im nhit cp 2 (21-24) khi ng qut nh rle trung gian K02 lm tc ng khi ng t K1 v tip im nhit cp 1 (11 - 12) dng qut. Khi nhit cha gim xung di cp 1 th mch qut mt vn c duy tr nh tip im ca rle trung gian K02 mc ni tip vi tip im nhit cp 1.

Khi khi ng t K1 c in s cp ngun lc cho cc mt qut mt. Tu theo la chn cc ptmt Q1-Q6 m cc qut c la chn s lm vic theo yu cu ca nhn vin vn hnh trm. ng thi K1 cng cho 1 tip im cnh bo tnh trng lm vic ca qut.

Cc qut mt c la chn (tnh trng sn sng lm vic ca cc qut mt) c bo nh cc tip im ph ca cc ptmt la chn qut lm vic v bo ln bng tn hiu trung tm nh rle trung gian K03.

Ch lm vic bng tay hay t ng cng c bo trn bng n trung tm nh tip im ph ca kha la chn ch 43 - FAN (Man/Auto).

H THNG MCH LC

PHN 6:

GII THIU RLE SPAJ140-141

Phn 6: HNG DN VN HANH - TH NGHIM RLE QUA DONG IN SPAJ 140C/141C

I./ GII THIU CHUNG :

1- ng dung cua rle SPAJ 140C/141C :

Rle bao v qua dong in SPAJ 140C/141C c s dung bao v chng cac s c qua dong pha va cham t trong li ni t trc tip, li ni t qua tr khang hay li cach t.

2- M ta rle :

- Rle gm 01 mun chc nng bao v qua dong - cham t SPCJ 4D29 va mt khi chung RS 611. Khi chung nay bao gm cac mun x ly, mun cp ngun nui cho rle, mun cac terminal rle u ra, tin hiu u vao mt chiu va mun cac u vao xoay chiu dong in.

- Mt trc cua rle nh hinh ve 1.1 bn di.

- Hinh 1.1 : Mt trc cua rle SPAJ 140C/141C -

+ Khi mun RS 611 : cung cp cac thng s ky thut chinh cua rle nh dong in inh mc cua phn t qua dong pha va phn t qua dong t (1A hay 5A), tn s inh mc cua i tng c bao v (50Hz hoc 60Hz), gia tri ngun nui cung cp cho rle (80 265Vdc/Vac hoc 18 80Vdc), cac chi dn oc cac chi thi lam vic cua rle va y nghia cua cac thanh ghi trong cac ban tin s c.

+ Khi mun SPCJ 4D29 co cac en chi thi cac dong in bao v IL1, IL2, IL3, I0, chi thi h hong bn trong rle IRF, chi thi bao v tac ng TRIP, cac thng s chinh inh cua bao v rle cung nh cac nhom cngtc lp trinh SGR, SGF, SGB.

+ Man hinh c hin thi 4 ch s : 03 ch s phia phai cua man hinh (co mau vang) chi thi cac gia tri chinh inh, o lng, ghi s c va 01 ch s phia trai cua man hinh (co mau o) chi thi loai s c hay ma s cua thanh ghi. ng thi tng ng vi chi thi trn man hinh, rle co cac en mau vang chi thi cac gia tri o lng, chinh inh hay gia tri s c tng ng.

+ 02 phim n RESET/ STEP (dung giai tr tin hiu, truy cp cac trinh n cua rle va cai t cac thng s chinh inh) va phim PROGRAM (dung trong truy cp, lp trinh va cai t cac thng s chinh inh cua rle cung nh cu hinh cac chc nng lam vic cua rle).

- Mt sau cua rle la cac terminal mach u vao dong in bao v, mach tin hiu input u vao mt chiu, mach cac rle u ra va cng kt ni giao din vi rle.

- Hinh 1.2 : Mt sau cua rle SPAJ 140C/141C -

- Rle gm co :

+ 04 u vao dong in xoay chiu 3 pha va trung tinh co th chon inh mc 1A hay 5A nh s la chon cac terminal u vao dong in mt sau cua rle,

+ 01 u vao iu khin co th c s dung thc hin cac chc nng iu khin bn ngoai (giai tr hoc la chon cac gia tri t) hay khoa mt s chc nng bao v cua rle,

+ 05 rle u ra thc hin cac chc nng canh bao SS (03) hay tac ng TS (02) ap ng theo s iu khin cua rle do ngi s dung lp trinh va 01 rle u ra canh bao cac h hong bn trong rle (IRF) cho phep t giam sat lin tuc ca phn cng va phn mm cua rle,

+ 01 u vao cp ngun nui mt chiu cho s lam vic cua rle.

(Xem thm hinh ve s u ni rle bn di - Hinh 2.1)

- Cac chc nng bao v gm :

+ Qua dong pha ngng thp vi c tinh thi gian xac inh hay phu thuc.

+ Qua dong pha ngng cao vi thi gian xac inh.

+ Qua dong t ngng thp vi c tinh thi gian xac inh hay phu thuc.

+ Qua dong t ngng cao vi thi gian xac inh.

+ Chc nng bao v chng may ct t chi ct.

II./ S U NI RLE SPAJ 140C :

- Hinh 2.1 : S u ni in hinh cua rle SPAJ 140C/141C -

* Y nghia cua cac ky hiu trong hinh ve nh sau :

Uaux: Ngun nui rle.

A, B, C, D,E, F: Cac rle u ra.

IRF: Chc nng t giam sat cua rle.

SGR: Nhom cng tc lp trinh cu hinh cac u ra tin hiu va u ra i ct.

SGB: Nhom cng tc lp trinh cu hinh chc nng khoa hoc cac tin hiu iu khin.

TRIP: Rle u ra i ct.

SIGNAL 1: Tin hiu ct bi bao v qua dong pha.

SIGNAL 2: Tin hiu ct bi bao v qua dong cham t.

START 1: Tin hiu khi tao hoc ct b sung c la chon vi nhom cng tc lp trinh SGR3.

START 2: Tin hiu khi tao t bao v qua dong mc thp .

U1: Khi bao v qua dong 3 pha va cham t v hng SPCJ 4D29.

U2: Khi ngun va rle u ra SPTU 240 R1 or SPTU 48 R1.

U3: Khi u vao SPTE 4E1.

T1 T8: Cac chi thi khi tao va ct t cac bao v.

SERIAL PORT: Cng giao din bng may tinh vi rle.

SPA-ZC_: Khi kt ni ng truyn giao tip.

Rx/Tx: Cac terminal truyn va nhn dung trong giao tip vi rle.

* u ni mach dong in cho rle SPAJ 140C/141C :

Hinh ve 2.1 th hin 1 cach u ni mach dong in cho rle SPAJ 140C/141C bao v cac s c qua dong pha va cac s c qua dong cham t. Cac mach nhi th t TI se c u vao cac terminal 1 9 (i vi cac bao v qua dong pha) va 25 27 (i vi bao v qua dong cham t) theo cac gia tri inh mc cua dong nhi th TI 1A hoc 5A.

III./ NGUYN LY - CHC NNG :

1. Bao v qua dong pha :

c s dung chng cac s c qua dong 1, 2 hoc 3 pha.

+ Khi nay so sanh cac dong pha i vao rle vi cac gia tri ngng dong t trc. No gm co hai ngng t I> va I>>. Khi dong u vao cua 1 trong cac pha vt qua cac gia tri chinh inh cua ngng t tng ng I> hay I>>, ma chi thi s khi tao bao v tng ng se xut hin trn man hinh phia ngoai cung bn trai. Khi m ht b thi gian lam vic cua chc nng bao v tng ng, khi nay se cung cp cac tin hiu lam vic n cac u ra mong mun, ma chi thi s tac ng cua bao v se hin thi trn man hinh, en TRIP se sang va s giai tr cac rle u ra cung nh en TRIP c thc hin nh n phim RESET/ STEP.

Thi gian lam vic cua bao v co th c la chon c lp hay phu thuc nh cac cng tc lp trinh. S khoa chc nng bao v cua rle co th thc hin nh cac tin hiu u vao iu khin vi cac cng tc lp trinh tng ng.

2. Bao v qua dong cham t :

c s dung chng cac s c cham t xut hin vung bao v. No cung gm 2 ngng t thp va cao (Io> va Io>>) trong o ngng t thp Io> co th c la chon c tinh thi gian lam vic c lp hay phu thuc. Khi dong in u vao vt qua gia tri chinh inh cua ngng t tng ng, bao v se khi tao va trn man hinh luc nay xut hin ma s chi s khi tao cua bao v tng ng. Khi b thi gian m ht gia tri t cua no, khi nay se cung cp cac tin hiu lam vic n cac rle u ra, ma s chi thi s tac ng cua bao v se xut hin trn man hinh, en TRIP sang, va luc nay s lam vic cua cac rle u ra cung nh en TRIP c giai tr nh phim n RESET/ STEP.

3. Bao v chng may ct t chi ct :

c s dung bao v chng lai cac s c lan tran do vic khng ct c may ct khi xut hin s c trn i tng c bao v, dn n yu cu cn phai ct cac may ct xung quanh c lp im s c.

Bao v lam vic trn c s co lnh TRIP t bao v nhng sau thi gian tr k t luc phat lnh TRIP ma bao v vn khng giai tr (tr v) c thi chc nng bao v chng may ct t chi ct cua rle se lam vic xut u ra TRIP tac ng ct cac may ct lin quan.

IV./ CAC THNG S CHINH CUA RLE BAO V QUA DONG :

1- Cac thng s chinh cua bao v :

I>/In: Dong in chinh inh cua bao v qua dong pha ngng thp, tinh theo bi s cua dong in inh mc cua rle.

t>[s]/k: Thi gian tr chinh inh cua bao v qua dong pha I> (tinh bng giy)/hoc bi s cua ng cong dung trong c tinh thi gian phu thuc.

I>>/In: Dong in chinh inh cua bao v qua dong pha ngng cao, tinh theo bi s cua dong in inh mc cua rle.

t>>[s]: Thi gian tr chinh inh cua bao v qua dong pha I>>, tinh bng giy.

I0>/In: Dong in chinh inh cua bao v qua dong cham t ngng

thp, tinh theo bi s cua dong in inh mc cua rle.

t0>[s]/k0: Thi gian tr chinh inh cua bao v qua dong cham t I0> (tinh bng giy)/hoc bi s cua ng cong dung trong c tinh thi gian phu thuc.

I0>>/In: Dong in chinh inh cua bao v qua dong cham t ngng cao, tinh theo bi s cua dong in inh mc cua rle.

t0>>[s]: Thi gian tr chinh inh cua bao v qua dong cham t I0>>, tinh bng giy.

2- Logic ct cua rle SPAJ 140C/141C :

Logic ct cua rle bao v SPAJ 140C/141C c m ta hinh ve di y :

- Hinh 4.1 : Logic ct cua rle SPAJ 140C/141C -

Bng vic la chon cac cngtc lp trinh SGR co th hiu lc cac chc nng bao v n cac u ra mong mun. Vi du : tin hiu dong in mt pha nao o trong s cac pha L1, L2, L3 nu vt qua ngng chinh inh t trc cua phn t bao v qua dong (tin hiu sau khi so sanh dong at mc logic 1) sau khi chay ht b thi gian tr cua no se cho mc logic 1 trc cac cngtc lp trinh SGR. By gi nu chon SGR1/2 = 1 va SGR2/1 = 1 thi tin hiu bao v qua dong tac ng se xut tng

ng n cac u ra TS2 va SS2.

V./ PHNG PHAP CHINH INH VA CAI T CU HINH:

1.- H thng trinh n :

Hinh ve di y trinh bay mt phn v h thng trinh n va phng phap truy cp vao h thng trinh n cua rle SPAJ140C/141C

- Hinh 5.1 : H thng trinh n cua rle SPAJ 140C/141C -

2.- Phng phap cai t cu hinh cho rle :

2.1/ Gii thiu chung :

- Cac chc nng lam vic cua rle co th c la chon nh cac cng tc lp trinh SGF.

- Vic cu hinh cac chc nng lam vic i vi cac tin hiu khoa va iu khin bn ngoai c thc hin nh cac cng tc lp trinh SGB.

- Cac u ra cua rle co th c la chon thc hin cac chc nng mong mun bng cac cng tc lp trinh SGR.

- Chc nng, cu hinh lam vic cua rle c quyt inh bi cac tng trong s cua cac nhom cng tc lp trinh SG* (Checksum SG*). Mt nhom cng tc lp trinh gm 8 cng tc vi cac mc gia tri 0 hoc 1 va co trong s c cho bang sau :

Cng tc th

Trong s

Cng tc th

Trong s

1

1

5

16

2

2

6

32

3

4

7

64

4

8

8

128

Trong s cua mi cng tc lp trinh cho bang trn la kt qua cua cac tinh toan theo cng thc sau : 2 cng tc th i - 1 .

Vi du : trong s cua cng tc th 1 la 2 1 - 1 = 2 0 = 1;

trong s cua cng tc th 5 la 2 5 - 1 = 2 4 = 16.

Tng trong s Checksum SG* c tinh bng tng cac trong s cua cac cng tc lp trinh trn. Nh vy t mt tng trong s Checksum SG* cua mt nhom cng tc co th xac inh c trong s cua tng cng tc, trn c s o co th xac inh c cac chc nng, cu hinh lam vic ang cai t cho rle.

Phng phap nh sau :

Ly tng trong s cua nhom cng tc o chia dn cho 2 cho n khi nhn c kt qua 0 thi s d cua mi phep chia se la mc gia tri (0 hay 1) cua mi cng tc. S d cua phep chia u tin la mc gia tri cua cng tc th 1 va c th tip tuc cho n cng tc th 8.

2.2/ Gii thiu v h thng cng tc lp trinh cua khi SPCJ 4D29:

Ghi chu : Nhng cng tc lp trinh nao khng c gii thiu trong nhng phn di y co nghia rng no khng c s dung.

+ SGF1/1(3, 6(8: La chon c tinh thi gian lam vic cua cp bao v I> , Io>.

+ SGF1/4: La chon chc nng khi tao bao v chng may ct t chi ct t lnh TRIP cua cac cp bao v .

Thi gian duy tri chc nng khi tao bao v chng may ct t chi ct (t 0 n 1s) co th c t va chinh inh trinh n con th 5 cua thanh ghi A.

+ SGF1 / 5: La chon chc nng t ng nhn i ngng t khi ng cua cp I>> cua bao v khi i tng cn bao v c ong vao li. Chc nng nay c dung tranh s tac ng khng ung i vi cac dong in xung khi ong i tng c bao v vao li.

+ SGF2 / 1 ( 4: La chon ch giai tr s khi ng cua bao v khi tin hiu s c c loai tr.

+ SGF2 / 5 , 6: La chon hiu lc hay khng hiu lc cac chc nng bao v I>> va Io>> .

+ SGF2 / 7 : La chon chc nng khi tao ong lp lai n u ra AR1 t tin hiu khi tao cua cp bao v I>>.

+ SGF2 / 8 : La chon chc nng khi tao ong lp lai n u ra AR3 t tin hiu khi tao cua cp bao v Io> hay Io>>.

+ SGB / 1 ( 4: Cu hinh cac tin hiu khoa cac chc nng bao v I>, I>>, Io>, Io>> cua khi bi cac tin hiu iu khin bn ngoai .

+ SGB / 5: Cho phep la chon nhom chinh inh cho s lam vic cua bao v bng tin hiu iu khin bn ngoai.

Ngoai ra s la chon nhom chinh inh cua bao v co th c thc hin nh lnh iu khin t may tinh hay bng cach thay i thng s cua trinh n con th 4 trong thanh ghi A.

+ SGB / 6: La chon chc nng duy tri tin hiu trip TS2 cua chc nng bao v qua dong pha.

+ SGB / 7: La chon chc nng duy tri tin hiu trip TS2 cua chc nng bao v qua dong cham t.

+ SGB / 8: La chon chc nng giai tr t xa cac rle u ra va cac thanh ghi s c.

+ SGR1 : Cu hinh cac tin hiu khi ng va lam vic cua bao v n cac rle u ra SS1 va TS2.

+ SGR2 : Cu hinh cac tin hiu lam vic cua bao v n cac rle u ra SS2 va SS3.

+ SGR3 : Cu hinh cac tin hiu khi ng va lam vic cua bao v n cac rle u ra TS1 .

2.3/ Cach cai t :

- cai t cho nhom cng tc lp trinh nao thi en vang trn mt trc cua rle tng ng vi nhom cng tc o phai c bt sang.

- Khi mt nhom cng tc lp trinh (vi du nhom SGF1) c la chon bng phim nhn STEP/RESET cho n khi en tng ng cua nhom cng tc o c bt sang, tng trong s (Checksum SG*) cua no se c hin thi trn man hinh.

Bng cach nhn phim PROGRAM hn 1s ri nha ra, trn man hinh se xut hin 01 ch s mau o ngoai cung bn trai chi thi s cua nhom cng tc va 03 ch s tip theo chi thi s Checksum SG* cua nhom.

chinh inh s Checksum SG* mi cua nhom (nhm la chon cu hinh mong mun) n phim PROGRAM 5s cho n khi man hinh nhp nhay bao hiu nhom nay ang trong ch chinh inh.

Tip tuc n phim PROGRAM 1s chon cng tc cn thay i. Luc nay cng tc c chon se xut hin cung vi mc logic hin hanh cua no.

thay i dung phim STEP/RESET chon mc logic 0 hoc 1 mong mun sau o tip tuc dung phim n PROGRAM 1s goi cng tc th hai cua nhom va qua trinh chinh inh thc hin tng t cho n cng tc th 8 cua nhom.

Khi vic chinh inh cng tc th 8 cua nhom kt thuc, bng cach n phim PROGRAM 5s thi trn man hinh se xut hin tng trong s mi cua nhom cng tc nay.

xac nhn gia tri mi cua nhom cng tc nay, n ng thi 2 phim STEP/RESET va PROGRAM, luc nay tai vi tri cua tng trong s se xut hin 03 du gach ngang.

chuyn sang nhom cng tc k tip (vi du nhom SGF2) n phim STEP/RESET trong 1s. By gi ch s ngoai cung bn trai cua man hinh se chi thi s cua nhom cng tc ang c hiu lc (trng hp nay la s 2). Qua trinh chinh inh tng t nh trn.

3.- Phng phap chinh inh thng s bao v cho rle :

hin thi mt thng s chinh inh nao o cua mt chc nng bao v, dung phim n STEP/RESET la chon no. Luc nay en mau vang nm bn canh thng s chinh inh se sang ln va trn man hinh xut hin 03 ch s mau vang chi gia tri chinh inh cua cp bao v tng ng.

Bng cach n phim PROGRAM 1s ri nha ra truy cp vao thng s chinh inh cn thay i. Luc nay trn man hinh se xut hin day gm 04 ch s vi 01ch s ngoai cung bn trai co mau o chi s nhom chinh inh va 03 ch s tip theo co mau vang chi gia tri cua thng s chinh inh o.

n phim PROGRAM 5s t thng s chinh inh nay vao ch chinh inh, luc nay cac con s trn man hinh se nhp nhay sang.

n phim PROGRAM 1s mt ln na goi ch s cn chinh inh theo gia tri mi va nh phim n STEP/RESET chon gia tri mong mun.

Tip tuc n phim PROGRAM 1s goi ch s th hai cn chinh inh va thay i no theo cach trn. Tun t nh vy cho ch s k tip va du thp phn cua thng s chinh inh theo mt thu tuc tng t. Sau khi hoan chinh vic nhp cac gia tri mi cua thng s chinh inh, n phim PROGRAM mt ln na gia tri mi cua thng s chinh inh nhp nhay. xac nhn gia tri mi cua thng s chinh inh nay, n ng thi 2 phim STEP/RESET va PROGRAM, ngay tai thi im nay, tai vi tri cua gia tri thng s se xut hin 03 du gach ngang. n phim PROGRAM thi gia tri chinh inh mi se xut hin trn man hinh. chuyn sang nhom t th hai cua bao v, n phim PROGRAM 1s man hinh se hin thi gia tri chinh inh cua nhom hin hanh. n phim STEP/RESET 1s, trn man hinh se xut hin 04 ch s vi ch s ngoai cung bn trai (mau o) chi s nhom chinh inh mi, 03 ch s bn phai (mau vang) chi gia tri cua thng s chinh inh cua nhom chinh inh mi. Cach chinh inh cung thc hin nh trn. Mun chinh inh thng s khac cua bao v thi dung phim STEP/RESET chuyn im sang n thng s cn chinh inh va thc hin theo mt thu tuc nh trn.

Hiu lc nhom t 2 cho rle bao v :

hiu lc cho rle lam vic theo nhom chinh inh th 2, di chuyn n thanh ghi A bng phim STEP/RESET, vao cac thanh ghi con cua thanh ghi A bng phim PROGRAM 1s, sau o dung phim STEP/RESET 1s n thanh ghi con th 4 cua thanh ghi A va thay i gia tri cua thanh ghi con th 4 nay t gia tri 0 thanh gia tri 1 theo mt cach thc chinh inh nh a nu cac phn trn. Sau khi tha nhn gia tri mi cua thanh ghi con th 4 nay thi cac thng s chinh inh bao v se chuyn sang hiu lc nhom t th 2.

SHAPE \* MERGEFORMAT

PHN 7: GII THIU RLE BO V 7SJ62

I. GII THIU CHC NNG BO V:

Rle 7SJ62x l hp b rle bo v xut tuyn trung p, cao p hoc ng dy siu cao p.

Rle 7SJ62x c y cc chc nng bo v dng in, in p, tn s, ng lp li,... Ngoi ra, rle 7SJ62x cn c chc nng o lng, ghi s c & nh v s c.

Hnh 1: S cu trc phn cng rle 7SJ62

1. Chc nng bo v qu dng v hng (50, 50N, 51, 51N):

- C 02 cp bo v qu dng pha - pha (50-2 & 50-1) c c tnh thi gian c lp.

- C 02 cp bo v qu dng pha - t (50N-2 & 50N-1) c c tnh thi gian c lp.

- C 01 cp bo v qu dng pha- pha c c tnh thi gian ph thuc (51).

- C 01 cp bo v qu dng pha- t c c tnh thi gian ph thuc (51N).

Hnh 2: Logic bo v qu dng 50-2.

Cc phn t 50-1, 50N-1, 51 & 51N c th b kha bi dng xung bng chc nng hn ch dng xung.

Tt c cc phn t qu dng u c th b kha bi chc nng ng lp li hoc bng cc u vo nh phn (Binary Input)

Gia tc bo v, b qua cc b thi gian ca cc phn t qu dng, bng cch kch hot Binary Input & hiu lc Binary Input vi chc nng Manual Close.

Trong trng hp ngn mch xut tuyn v tr gn trm (im s c A), trnh bo v vt cp ct my ct tng do dng s c ln, khi bo v qu dng 50-1 ca xut tuyn lm vic, rle xut lnh i kha bo v qu dng 50-2 ca my ct tng (Xem hnh 3). Khi ngn mch trn thanh ci (im s c B), bo v qu dng 50-2 ca my ct tng lm vic bnh thng.

Hnh 3: Kha bo v my ct tng khi bo v xut tuyn tc ng.

Bo v qu dng 51 & 51N c c tnh thi gian ph thuc.

c tnh thi gian ph thuc:

Theo tiu chun IEC c: Normal Inverse (Type A)

Very Inverse (Type B)

Extremely Inverse (Type C)

Long Inverse (Type D)

Cng thc tnh thi gian tc ng theo tiu chun IEC :

Cng thc tnh thi gian tr v theo tiu chun IEC :

Trong : t: thi gian tc ng (s)

tRESET: thi gian tr v (s)

Tp : gi tr ci t h s thi gian

I: dng s c

Ip: gi tr ci t dng tc ng

c tnh thi gian ph thuc:

Theo tiu chun ANSI/IEEE c: Inverse

Short Inverse

Long Inverse Moderately Inverse

Very Inverse

Extremely Inverse

Definite Inverse.

Cng thc tnh thi gian tc ng theo tiu chun ANSI/IEEE :

Trong : t: thi gian tc ng (s)


I: dng s c


Cng thc tnh thi gian tr v theo tiu chun ANSI/IEEE :

Trong : tRESET: thi gian tr v (s)


I: dng s c


2. Chc nng bo v qu dng c hng (67, 67N):

- C 02 cp bo v qu dng pha - pha c hng (67-2 & 67-1) c c tnh thi gian c lp.

- C 02 cp bo v qu dng pha - t c hng (67N-2 & 67N-1) c c tnh thi gian c lp.

- C 01 cp bo v qu dng pha- pha c hng c c tnh thi gian ph thuc (67-TOC).

- C 01 cp bo v qu dng pha- t c hng c c tnh thi gian ph thuc (67N-TOC).

Hnh 4: Logic bo v qu dng c hng 67-2.

Trong trng hp s c ngoi vng lm vic, rle xut lnh i kha bo v qu dng v hng (50-1) ca rle i din (Xem hnh 5). Khi c s c trong phm vi bo v, bo v c hng tc ng.

Hnh 5: Kha cho bo v khi s c ngoi vng bo v.

Hnh 6: S phi hp thi gian bo v.

Hnh 7: Hng tc ng ca bo v qu dng c hng.

Hnh 8: La chn gii hn hng.

Hnh 9: La chn in p cho bo v qu dng c hng.

Bng phi hp dng in & in p bo v:

3. Bo v in p (27, 59):

- C 02 cp bo v qu p pha-pha hoc pha-t (59-2 & 59-1) c c tnh thi gian c lp.

- C 02 cp bo v km p pha-pha hoc pha-t (27-2 & 27-1) c c tnh thi gian c lp.

Hnh 10: Logic bo v qu in p.

i vi chc nng bo v km p, ta c th chn c hoc khng c kim tra dng.

4. Bo v qu dng th t nghch (46):

- C 02 cp bo v qu dng th t nghch (46-2 & 46-1) c c tnh thi gian c lp.

- C 01 cp bo v qu dng th t nghch (46-TOC) c c tnh thi gian ph thuc.

5. Bo v tn s (81 O/U):

C 04 cp bo v tn s (81-1, 81-2, 81-3, & 81-4). Ty theo ngng t m ta c bo v qu hoc km tn s.

C 04 b thi gian tc ng c c tnh thi gian c lp tng ng.

Nu in p u V < Vmin : chc nng bo v tn s b kha.

Bng thng s ci t bo v tn s:

6. Bo v qu ti nhit (49):

Bng thng s ci t bo v qu ti:

Cng thc tnh thi gian tc ng:

Trong : t : thi gian tc ng (pht).

(: hng s thi gian.

I: dng khi qu ti.

Ipre: dng trc khi qu ti.

k: bi s dng.

IN: dng nh mc ca thit b.

7. Chc nng bo v chm t nhy cao (64, 50Ns, 67Ns):

Phn t p : Vo hoc 3Vo = Va + Vb + Vc

Phn t dng : 3Io, c xc nh t cc phn t 50N, 67N, hoc 51N, 67N-TOC. Cc phn t ny c th c hng hoc v hng.

Xc nh hng: theo cos( hoc sin(.

Hnh 11: Logic bo v chm t nhy cao.

8. Kim tra chc nng li my ct (50BF)

Chc nng bo v li my ct lm vic khi c lnh ct t bo v, nhng my ct khng tc ng, rle s tip tc xut lnh ct cc my ct khc c lin quan n my ct h hng (Xem hnh 12).

Hnh 12: S bo v 50BF.

Biu thi gian tc ng:

Bng ci t thng s bo v:

9. Chc nng ng lp li (79M):

S ln ng lp li: 04.

iu kin khi to chc nng ng lp li:

Biu thi gian ng lp li thnh cng:

II. GII THIU CHC NNG O LNG & GHI S C:

1. Chc nng o lng:

o lng dng in.

o lng in p.

o lng cng sut.

o lng h s cng sut.

o lng tn s.

2. Chc nng ghi s c:

Rle 7SJ62 c th lu tr tt c cc thng tin s kin xy ra trong qu trnh vn hnh cng nh cc thng s v s c.

Rle 7SJ62 c kh nng lu tr 8 bn tin s c mi nht vi chiu di bn ghi ti a l 5s. Bn ghi s c biu th dng in & in p trc, khi s c & sau khi s c xy ra di dng sng, ng thi biu th cc chc nng bo v tc ng.

Bng ci t cc thng s bn ghi s c:

Hng dn ci t Rle

1. Cch ci t rle thng qua bn phm trn mt trc ca rle

mt trc ca rle c:

01 mn hnh tinh th lng hin th c 4 hng k t (thng tin).

Cc n led ch bo cc tnh trng lm vic ca rle.

04 phm mi tn dnh cho vic truy cp vo cc trnh n ca rle.

Cc phm s t 0 n 9, phm du thp phn, phm du +/- dng ci t cc thng s chnh nh ca rle.

Phm Menu truy cp vo h thng trnh n chnh ca rle.

Phm Enter xc nhn cc lnh iu khin hay cc thao tc ci t chnh nh cho rle.

Phm Esc hu b mt lnh hay mt thao tc va thc thi.

Phm Led kim tra v xo cc ch th n xut hin trn rle.

01 cng RS232 dnh cho vic giao tip vi rle bng my tnh.

Ngoi ra mt trc rle cn c 04 phm chc nng F1 -- F4 dnh cho vic c cc thng tin o lng, s c, hay cc ch th lm vic.

Ci t cho rle bng bn phm mt trc ca rle:

Ch c th thao tc ci t chnh nh cc thng s bo v ca rle, cch thc hin nh sau:

n phm Menu vo h thng trnh n chnh ca rle.

Dng cc phm mi tn di chuyn n trnh n mun truy nhp v cc ni dung cn chnh nh ca trnh n .

n phm Enter vo thay i ni dung ny, mn hnh s xut hin yu cu cung cp mt khu.

Nhp mt khu cho rle (mt khu mc nh ca rle l su (06) con s 0).

n Enter xc nhn mt khu v thay i ni dung ny n gi tr chnh nh mong mun khi con tr xut hin v nhp nhy di ni dung ny.

n Enter xc nhn gi tr chnh nh mi sau khi thay i xong.

Cch ci t cc thng s khc v cch iu khin thit b nht th bng cc phm trn rle c th tham kho chi tit trong ti liu hng dn ca rle.

2. Cch ci t rle thng qua my tnh v phn mm DIGSI 4

thc hin thao tc ci t cho rle bng my tnh cn thit phi c dy giao din kt ni cng COM ca my tnh v cng RS232 mt trc ca rle v phn mm DIGSI 4. Ngoi ra, nhn vin thao tc cn phi quen s dng phn mm ny v bit cc thao tc bng my tnh thng qua phn mm DIGSI 4.

Xem chi tit trong ti liu c hng dn c th

Gii thiu chung v th tc ci t rle

Th tc ci t cho thit b SIPROTEC 4 bao gm:

Ton b cc chc nng bo v v iu khin gm

Xc nh cc cu hnh thit b s dng

Thit k u vo nh phn, u ra, n Led...

Chc nng logic (CFC)

Ci t chi tit:

Ci t cc phn t s dng

Ci t cc chc nng bo v

Ci t cc chc nng iu khin

Th tc ci t lm vic ch Off Line sau khi hon tt th ti n thit b SIPROTEC 4 theo cng giao din (serial interface) hoc Modem

Giao din bng tay

Cch dng cc phm chc nng xem kiu, version ca rle 7SJ62

Cch giao din my tnh vi rle:

n nh kt ni gia cng giao din PC v cng giao din mt trc ca thit b

M trnh ng dng DIGSI 4 trong PC.

To ra mt i tng mi bng cch kch vo File New trong trnh n chnh ca DIGSI4 (hnh 1).

Hnh 1Hnh 2

t tn cho i tng v d: Test. Sau chn OK

Chn biu tng bng cch kch vo ca s m. Sau kch vo thanh cng c c biu tng Device & la chn DIGSI Device (Plug&Play)

La chn cng giao tip cho PC (COM1,2,3..) & sau la chn trong hp thoi trng thi truyn d liu chun b kt ni.(hnh 2)

Sau y l mt v d v cch ci t cc thng s rle bng my tnh

Chn OK DIGSI4 s t ng xc nh thit b hin ti v c thng s ci t cn thit t thit b rle.

Kch p vo Settings ta s c ca s nh (hnh 3)

xem xt hoc thay i thng s trong trnh n sau

Hnh 3

PHN 8: GII THIU

RLE DNG IN MICOM P123

I. GII THIU CC CHC NNG CA RLE :

Hnh I.1 : Rle MiCOM P123

* Rle Micom P123 l hp b rle dng in k thut s, thng c dng bo v cho cc ng dy trn khng hoc cp vi cp in p trung th .

* Rle c : 05 input nh phn & 08 r le u ra c th ci t tu chn.

* Rle c 2 nhm chnh nh.

Hnh I.2 : S m phng bo v

Hnh I.3 : S u ni rle MiCOM P123

Rle P123 c cc chc nng chnh sau :

1. Bo v qu dng pha - pha [50/51]

2. Bo v qu dng chm t [50 51N]

3. Bo v qu dng th t nghch [46]

4. Bo v qu ti nhit [49]

5. Bo v km dng [37]

6. T ng ng lp li my ct [79]

Ngoi ra rle P123 cn c cc chc nng :

- o lng 3 pha & N

- Ghi s c

- Bo v khng i xng

- Bo v h hng my ct

- Ti lnh

- Gim st mch ct my ct

1. Chc nng bo v qu dng pha - pha [50/51]:

- C 3 cp bo v I>, I>> v I>>> c th la chn v lm vic c lp nhau

- Cp 3 lm vic vi c tnh thi gian c lp.

- Cp 1 v 2 c th chn lm vic theo c tnh thi gian c lp (DMT) hoc ph thuc (IDMT, RI).

Hnh I.4 : Logic ct I>, I>> & I>>>

Hnh I.5 : c tnh ct t chc nng bo v qu dng

Trong c tnh IDMT c th chn cc kiu :

+ Tiu chun IEC SI, STI, VI, LTI, EI v RC

+ Tiu chun IEEE MI, VI, EI

+ Tiu chun CO2STI

+ Tiu chun CO8LTI

* Khi chn c tnh thi gian ph thuc, thi gian tr v ca rle khi mc dng h thp hn ngng chnh nh c tr hon bi treset.

Hnh I.6 : c tnh thi gian ct t chc nng bo v qu dng

2. Chc nng bo v qu dng chm t [50/51N] :

- C 3 cp bo v IE>, IE>>, IE>>> c th chn v lm vic c lp vi nhau.


- Cp 1 v 2 c th chn lm vic theo c tnh thi gian c lp (DMT) hoc ph thuc (IDMT, RI).

Trong c tnh IDMT c th chn cc kiu :

+ Tiu chun IEC SI, STI, VI, LTI, EI v RC

+ Tiu chun IEEE MI, VI, EI

+ Tiu chun CO2STI

+ Tiu chun CO8LTI

* Khi chn c tnh thi gian ph thuc, thi gian tr v ca rle khi mc dng h thp hn ngng chnh nh c tr hon bi treset.

3. Chc nng bo v qu dng th t nghch [46] :

C 2 cp bo v I2> v I2 >> c th la chn v lm vic c lp vi nhau.


- Cp 1 c th chn lm vic theo c tnh thi gian c lp (DMT) hoc ph thuc (IDMT, RI).

4. Chc nng bo v qu ti nhit [49] :

- Rle t ng la chn pha c dng ln nht tnh ton.

- C th chnh nh mc cnh bo v ct c lp nhau.

c tnh thi gian c tnh theo cng thc :

exp (-t/T ) = [I2 - (k.IFLC)2 ] / (I2 - IP2 ) (4.1)

trong :

t = Thi gian ct ;

T = Hng s thi gian nhit ca thit b c bo v.

I - Dng ln nht trong 3 pha.

IFLC - Dng nh mc lc y ti.

k - Hng s cho php lm vic lin tc.

IP - Dng n nh trc khi vt ngng qu ti.

Hnh I.7 : c tnh thi gian ct t chc nng bo v qu ti

5. Chc nng bo v km dng [37] :

Lm vic theo c tnh c lp, c th ci t lm vic theo chc nng km dng hoc ngng km dng I< dng kim tra chc nng li my ct.

6. Chc nng t ng ng lp li my ct [79] :

- S ln ng lp li ti a / 1chu trnh: 4 ln.

- C th la chn kiu khi to ng lp li theo s c qu dng pha - pha hoc qu dng chm t hoc c hai.C kim tra trng thi v trnh trng my ct - Khng kim tra ng b.

7. Chc nng ph :

Bo v khng i xng : I2f /I1f

Ti lnh

Li my ct

Gim st my ct.

Chc nng ghi s c :

- Hin th c 5 s c mi nht khi truy cp bng tay.

- Trigger : Lnh Trip hoc Start.

8. Chc nng o lng dng in 3 pha v N :

Hng dn ci t Rle P12X

1. Ci t thng s bo v :

Dng 5 phm mt trc rle (Xem Hnh II.1) ci t cc tr s bo v.

Phm ( ( : di chuyn xem cc menu.

Phm ( ( : di chuyn trong menu xem thng s, & tng gim thng s.

Phm ( (Enter) : bt u, xc nhn thay i gi tr.

Trnh t truy cp h thng menu chnh ca rle c trnh by Hnh II.4. Cc h thng bo v nm trong menu PROTECTION G1 (mc nh) hoc PROTECTION G2 (nu nhm 2 c kch hot & c hiu lc bo v).

Hnh II.4 : Trnh t thao tc truy cp h thng menu rle P123

Ci t gi tr bo v qu dng nh sau :

Cp 1 : I> = 4In

c tnh thi gian DMT, t = 100ms

Cp 2 : I> = 6In

c tnh thi gian DMT, t = 100ms

Cp 3 : I> = 10In

t = 100ms

(Xem Hnh II.5)

Hnh II.5 : Trnh t thao tc ci t thng s bo v rle P123

2. Ci t cu hnh u ra :

3.1 Cu hnh rle u ra RL1 :

(trnh t thao tc ci t tng t nh ci t thng s).

Hnh II.6 : H thng menu cu hnh rle u ra RL1.

3.2 Cu hnh rle u ra RL2 -> RL8 :

(trnh t thao tc ci t tng t nh ci t thng s).

Chn RL3, RL7, RL8 cho cc chc nng bov qu dng & chm t.

Chn RL4 cho chc nng I2>.

Chn RL5 cho chc nng I2>>.

Chn RL2 & RL6 cho chc nng qu ti.

Rle no c chn th t 1, cn khng th t 0.

Cc chcnng khc khng dng th khng nn ci t u ra, nn t 0 trnh nhm ln khi th nghim.

(Xem Hnh II.7)

Hnh II.7 : H thng menu cu hnh rle u ra RL2 -> RL8.

3. Ci t n ch th :

Chn Led 5 cho chcnng I>, I2> & Ie>.

Chn Led 6 cho chcnng I>>,I2>> & Ie>>.

Chn Led 7 cho chcnng I>>> & Ie>>>.

Chn Led 8 cho chc nng ct qu ti (Therm. Trip).

4.1 Ci t Led 5:

Hnh II.8 : H thng menu cu hnh n Led 5.

(Cc chc nng khc u phi chn No)

4.2 Ci t Led 6 :

Tng t nh ci t Led 5, tI>> = Yes , tI2>> = Yes & tIe>> = Yes.

Cc chc nng khc chn No

4.3 Ci t Led 7 :

Tng t nh ci t Led 5, tI>>> = Yes & tIe>>> = Yes.


4.3 Ci t Led 8 :

Tng t nh ci t Led 5, Therm. Trip = Yes.


Gii thiu phn mm giao din MiCOM S1 V2.03

1- Khi ng chng trnh :

Start Menu -> Program -> MiCOM S1 -> MiCOM S1 Startup

-> Xut hin mn hnh "Settings and Recorder"

2- Trnh t kt ni rle vi my tnh nh sau :

n OK kt ni.

3- Trnh t to 1 file d liu mi nh sau :

Sau khi chn xong, nhn OK, trn mn hnh xut hin :

- Ca s bn tri hin th h thng cc Menu, ca s bn phi hin th ni dung Menu c kch chn ca s bn tri.

- H thng Menu nh gii thiu mc II.

- Cch thay i thng s :

+ Nhn p chut tri vo i tng cn thay i (xem hnh v trn), trn mn hnh xut hin ca s :

+ Nhp gi tr mi vo

"New Value", nhn OK: chp nhn

sa i, nhn Cancel: hu b sa

i.

(Thay i cc thng s khc : tin hnh

tng t cc bc nu trn).

4- Lu Setting vo file:

5- Lu Setting t rle vo file:

- Kch chn Menu Device trn thanh cng c,

- Chn Send to -> New Setting File,

- Kch chn Menu File trn thanh cng c, chn Save,

- Nhp tn cn lu, n Save.

6- Nhp Setting t file vo rle:

- Kch chn Menu File trn thanh cng c, chn Open -> Setting file,

- Chn File cn m, n OK,

- Chn Send to -> MiCOM.

7- Dng kt ni, thot khi chng trnh:

- Kch chn Menu Device trn thanh cng c,

- Chn Close Connection, n OK.

- Kch chn Menu File trn thanh cng c, chn Exit.

MC LC

STT

NI DUNG

Trang

Phn 1

Gii thiu tng quan v cng tc th nghim

2

Phn 2

H thng mch dng in v in p

6

Phn 3

Nguyn l iu khin in My ct

11

Phn 4

Phng thc bo v

30

Phn 5

Gii thiu h thng lgch mch

39

Phn 6

Gii thiu Rle SPAJ 140/141

44

Phn 7

Gii thiu Rle 7SJ62

57

Phn 8

Gii thiu Rle P123

83

Kch vo biu tng : chn

Kch vo biu tng : thot

La chn loi rle

Kch vo biu tng : chn

Kch vo biu tng

a ch truy cp rle

Chn kiu rle

Chn Model rle

Nhn p chut tri

Nhp gi tr mi vo

Nhp tn mi cn lu

n Save lu

107/107 Ti liu Hng dn vn hnh PC3

_1122984361.vsd
This stencil contains custom line patterns. When this stencil is open, its line patterns are available at the end of the Pattern list in the Line dialog box.To apply a custom line pattern, select a shape, and then choose Format > Line. In the Pattern list, select a custom line pattern name, and then click OK.

Register

AD

Q1Q4

ENB

Counter

U/DReset

B1B4Carry out

ENB

A1

1

Voltage Converter

V+Vout

C+GNDC-

G

Xe

Cr3+Al2O3

G

Page

Title

Page

Title

Title

page

Company Name/Title

Subtitle

Title

Page

Title/Company Name

Page

Title

Page

Title

This stencil contains custom fill patterns. When this stencil is open, its patterns are available at the end of the Pattern list in the Fill dialog box.To apply a custom pattern, select a shape, and then choose Format > Fill. In the Pattern list, select a custom pattern name, and then click OK.


87T

50/51

50N/51N

50/51

35/22kV 6300KVA

23-1; 23-296-1; 96-290

S PHNG THC BAO V MAY BIN AP 35/22KV

Phn xng Rle - T ng

64

_1122984598.vsd
This stencil contains custom line patterns. When this stencil is open, its line patterns are available at the end of the Pattern list in the Line dialog box.To apply a custom line pattern, select a shape, and then choose Format > Line. In the Pattern list, select a custom line pattern name, and then click OK.

Register

AD

Q1Q4

ENB

Counter

U/DReset

B1B4Carry out

ENB

A1

1

Voltage Converter

V+Vout

C+GNDC-

G

Xe

Cr3+Al2O3

G

Page

Title

Page

Title

Title

page

Company Name/Title

Subtitle

Title

Page

Title/Company Name

Page

Title

Page

Title



F50-50NF51-51N

F67-67N

F81

F79

S PHNG THC BAO V XUT TUYN 35KV, 22KV

Phn xng Rle - T ng

huongdanvanhanh_05

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