QTVH HT Đi_u T_c Tua Bin (Đ_ Hi_u Ch_nh)

TP ON IN LC VIT NAM CNG TY THU IN SN LA

EVN HPC SN LA

QUY TRNH VN HNH V X L S C

H THNG IU TC TUA BIN THY LC (Ban hnh km theo quyt nh s: /Q-TSL-KT ngy /12/2012

ca Gim c Cng ty Thy in Sn La)

SN LA, THNG 12 NM 2012

CNG TY THY IN SN LA K hiu:

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H THNG IU TC TUA BIN THY LC

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N V C PHN PHI:

1. Ban Gim c 02

2. Phng K thut 01

3. Phn xng Sa cha 03

4. Phn xng Vn hnh 03

5. Phng T chc Hnh chnh 01

6. Phng K hoch Vt t 01

7. Phng Ti chnh K ton 01

Tng cng 12

THNH PHN CH TR BIN SON: Phng K thut

NGI LP NGI KIM TRA

Ch k:

H v tn: Nguyn Vn Tip

Chc v: Chuyn vin

Ch k:

H v tn: Nguyn Hu c

Chc v: Trng phng K thut

THAM GIA XEM XT:

1. Ban Gim c. 2. Cc Phng, Phn xng trong Cng ty

NGI DUYT: Ch k:

H v tn: Hong Trng Nam Chc v: Gim c


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MC LC

PHN A: GII THIU QUY TRNH.................................................................. 5

I, MC CH QUY TRNH ............................................................................. 5 II. I TNG QUY TRNH ......................................................................... 5 III. PHM VI P DNG ................................................................................. 5 IV. TI LIU THAM KHO V CC QUY TRNH LIN QUAN............. 5 V. CC NH NGHA V T VIT TT .................................................... 6

PHN B: NI DUNG QUY TRNH ................................................................... 7

CHNG 1: CC QUI NH CHUNG .......................................................... 7 iu 1. Yu cu v quy trnh, quy phm ...................................................... 7 iu 2. Yu cu v nhn vin vn hnh ........................................................ 7 iu 3. Yu cu i vi phng t trm du p lc ..................................... 7 iu 4. Cc quy nh v an ton ................................................................... 7 iu 5. Quy nh v cng tc bo dng, sa cha ..................................... 8 iu 6. Kim tra trong vn hnh bnh thng .............................................. 8 iu 7. Cc trng hp phi dng khn cp h thng iu tc .................... 9

CHNG 2: QUY NH V VN HNH H THNG............................... 9 iu 8. Ch vn hnh h thng iu tc ................................................. 9 iu 9. Trng thi sn sng lm vic ca h thng .................................... 10 iu 10. Thao tc a h thng iu tc ra sa cha ................................. 10 iu 11. Thao tc a h thng v trng thi sn sng lm vic sau sa cha ............................................................................................................. 11 iu 12. Vn hnh h thng iu tc ch Bng tay ti ch ............ 13 iu 13. Vn hnh h thng iu tc ch T ng ti ch ............. 15 iu 14. Vn hnh h thng iu tc ch T ng t xa ................ 15 iu 15. Mt s thao tc ti HMI ............................................................... 15 iu 16. Vn hnh cc my bm du ......................................................... 16 iu 16. Hiu chnh mc v p lc du trong bnh tch nng .................... 17

CHNG 3: CC HIN TNG BT THNG, .................................... 18 NGUYN NHN V BIN PHP X L .................................................. 18

iu 17. iu tc t ng chuyn t T.SLG Lm vic sang T.SLG D phng ......................................................................................................... 18 iu 18. Mt tn hiu mn hnh HMI .......................................................... 20 iu 19. H hng T.ADT khi khi ng t my ........................................ 20 iu 20. H hng T.ADT khi t my ang vn hnh ................................. 20 iu 21. T my khng tng, gim cng sut tc dng c ..................... 21 iu 22. Mt ngun AC 220V hoc DC 220V cp cho t 0*MEU10GH001 ..................................................................................................................... 22


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iu 23. Mt ngun AC 220V hoc DC 220V cp cho t 0*MEU14GH002 ..................................................................................................................... 22

iu 24. p lc trong bnh tch nng gim thp s c ............................... 22 iu 25. Mc du trong bnh tch nng gim thp n mc dng s c t my .............................................................................................................. 23

iu 26. Mc du trong bnh tch nng tng cao pht tn hiu ................... 24 iu 27. Mc du b x gim thp thp s c ............................................ 25 iu 28. Mc du b x gim thp thp s c ............................................ 26 iu 29. C tn hiu bo tc b lc AT006 ................................................ 27 iu 30. C tn hiu bo tc b lc u ht cc my bm du .................. 27

PHN C: GII THIU CHUNG V H THNG IU TC TUA BIN THY LC ......................................................................................................... 29

1. Chc nng cng ngh ca h thng iu tc .............................................. 29 2. M t h thng iu tc ............................................................................... 29

2.1. T iu tc in (0*MEU10 GH001) .................................................. 30 2.1.1. B iu khin qu trnh t my (UPC) ......................................... 30 2.1.2. B iu khin v tr servomotor (SPC) ......................................... 30 2.1.3. Thit b o lng tc T.ADT ................................................... 30 2.1.4. Thit b giao din ngi my HMI ............................................... 30

2.2. H thng du p lc v c cu chp hnh thy lc ............................. 30 2.2.1. H thng du p lc .......................................................................... 30

2.2.2. C cu chp hnh in thy lc .................................................... 33 2.2.2.1. Nguyn l lm vic ca van chnh AA001 ................................ 33

2.3. Thng s k thut ca h thng iu tc ............................................. 34 2.3.1. Thng s k thut ca van AA001 v AA002 .............................. 34 2.3.2. Thng s tn hiu vo v ra ca UPC............................................ 35 2.3.3. Thng s tn hiu vo v ra ca SPC ............................................ 35 2.3.4. Thng s u vo v ra ca T.ADT .............................................. 35

2.4. Trang thit b cp ngun ti h thng cc t iu tc .......................... 36 2.4.1. T iu tc in 0*MEU GH001 .................................................. 36 2.4.2. T iu khin h thng du p lc 0*MEU14 GH002 ................. 36 2.4.3. T iu khin bm du 0*MEU GH003 ....................................... 36

2.5. Trang b iu khin, hin th trn mt t .............................................. 37 2.5.1. T iu tc in 0*MEU10 GH001 .............................................. 37 2.5.2. T iu khin h thng du p lc 0*MEU14 GH002 ................. 38 2.5.3. T iu khin bm du 0*MEU GH003 ....................................... 40


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PHN A: GII THIU QUY TRNH

I, MC CH QUY TRNH

Quy trnh ny nhm hng dn cng tc vn hnh, x l s c h thng iu

tc Tua bin thy lc cho cc chc danh vn hnh trong Nh my thy in Sn La.

II. I TNG QUY TRNH

Nhng ngi cn nm r quy trnh ny:

- Lnh o Cng ty.

- Trng, ph phng k thut.

- Qun c, ph qun c Phn xng Vn hnh.

- Qun c, ph qun c cc Phn xng Sa cha.

- Cc Trng ca, Trng kp vn hnh.

- Cc vn hnh vin lin quan.

- Cn b chuyn trch an ton Nh my.

- K s, cng nhn sa cha, th nghim lin quan.

III. PHM VI P DNG

Qui trnh ny qui nh v vic vn hnh v x l s c i vi h thng iu

tc Tua bin thy lc nh my thy in Sn La cho cc chc danh vn hnh, sa cha

v nhng ngi lin quan.

Cc c nhn ngoi nh my thy in Sn La khi lm vic trn thit b h thng

iu tc Tua bin thy lc ca nh my thy in Sn La cn tun th nhng qui nh

lin quan trong qui trnh ny.

IV. TI LIU THAM KHO V CC QUY TRNH LIN QUAN

1. Cc ti liu ca nh ch to gm:

2. S nguyn l h thng iu tc: HCN-SLA-00-MEU-FF-00-

001_0130000 (bn hiu chnh E);

3. Tnh ton h thng iu tc: HCN-SLA-00-MEU-ED-00-001 (bn

hiu chnh D);

4. Hng dn vn hnh h thng iu tc v mn hnh HMI: HCN SLA

00 MEU DC 00 001_002 (bn hiu chnh C);

5. Bn v u ni phn in h thng iu tc: HCN-SLA-00-MEU-FS-

10-001_1130003; HCN-SLA-00-MEU-FS-14-001_2430001;

6. Hng dn s dng phn mm T.SOFT;

7. Hng dn vn hnh h thng o lng tc T.ADT;


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8. M t, hng dn lp t v bo dng SPC;

9. M t, hng dn lp t v bo dng UPC;

10. Quy trnh vn hnh h thng iu khin (DCS);

11. Quy trnh vn hnh v x l s c t my;

12. Quy trnh vn hnh v x l s c h thng r le bo v;

13. Quy trnh VH&XLSC h thng bo chy v cha chy;

14. Quy trnh an ton c kh thy lc.

V. CC NH NGHA V T VIT TT

- CCR (Central Control Room): Phng iu khin trung tm.

- LCU (Local Control Unit): T iu khin ti ch t my.

- TSLG (Turbine speed load governor): B iu chnh tc tuabin

- TADT (Turbine auxiliary tachometric system): B o tc tuabin.

- UPC (T-SLG Unit processing controller): B iu chnh tc t my.

- SPC (T-SLG servo-processing controller): B iu chnh secvomotor.

- R29N (TSLG major Fault): Li chnh b iu chnh tc chnh.

- R129N (TSLG minor Fault): Li ph b iu chnh tc chnh.

- R29S: Li chnh b iu chnh tc d phng.

- R129S: Li ph b iu chnh tc ph d phng.

- RD29 (TADT major Fault): Li chnh b o tc .

- RD129 (TADT minor Fault): Li ph b o tc .

- R70: Tn hiu ch b ng b.

- R128: Tn hiu ch lm vic cch ly vi li.

- RV01: Tn hiu u ra ca b TADT dng cho phanh c kh.

- RV02: Tn hiu u ra ca b TADT cho phanh c kh khi dng c kh

bnh thng.

- RV03: Tn hiu u ra ca b TADT dng cho phanh in.

- RV05: Tn hiu u ra ca b TADT cho kch t lm vic.

- RV06: Tn hiu u ra ca b TADT cho ha ng b.

- RV07: Tn hiu u ra ca b TADT lng tc ban u (115%).

- RV08: Tn hiu u ra ca b TADT lng tc cp 2 (125%).

- RV09: Tn hiu u ra ca b TADT lng tc cp 3 (140%).

- RV14: Tn hiu u ra ca b TADT tc t my =0

- R300N-A: B TSLG lm vic t ng

- *: s th t t 16.


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PHN B: NI DUNG QUY TRNH

CHNG 1: CC QUI NH CHUNG

iu 1. Yu cu v quy trnh, quy phm

Khi vn hnh h thng iu tc Tua bin thy lc ca Nh my, ngoi vic phi

tun th cc quy nh trong quy trnh ny cn cn phi tun th cc quy trnh, quy

phm lin quan v cc ti liu hng dn ca nh ch to.

- Quy chun k thut Quc gia v k thut in (b cng thng ban hnh

nm 2008) .

- Quy chun k thut quc gia v an ton in (QCVN01:2008).

- Quy trnh an ton in (EVN ban hnh).

- Quy trnh kim nh k thut an ton cc bnh chu p lc (b lao ng

thng binh x hi ban hnh 2005).

- Cc quy phm, quy trnh, quy nh khc c lin quan.

iu 2. Yu cu v nhn vin vn hnh

Vn hnh h thng iu tc Tua bin thy lc ch c giao cho nhn vin vn

hnh qua hun luyn v st hch t yu cu v qui trnh vn hnh v x l s c h

thng iu tc Tua bin thy lc v c phn cng nhim v.

iu 3. Yu cu i vi phng t trm du p lc

- Phi c bin ''Cm la'' treo v tr d thy;

- B tr y cc phng tin cu ha;

- Khng cc thit b, cc cht d gy chy n trong trm;

- Phi c trang b y cc dng c cha chy;

- H thng thng gi phi m bo s lu thng khng kh trong phng;

- chiu sng m bo cho vic kim tra vn hnh v sa cha trong

trm;

iu 4. Cc quy nh v an ton

a) Ch cho php vn hnh cc bnh tch nng ca h thng du p lc khi

ng kim t yu cu v c cp giy php s dng ca cc cp

c thm quyn, giy php cn hiu lc.

b) Trong khi t my ang lm vic, nghim cm thc hin cc cng vic sau:

- Cc cng vic pht sinh la hoc ht thuc gn khu vc trm du p lc.

- G vo cc mi hn, ko xit bu lng, cu v cc chi tit lin kt khi ang

chu p lc trong h thng.


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- Thay i cc thng s ca h thng iu khin. thay i phng thc

chuyn i cc my bm du.

- Ct cc ptmt cp ngun trong t iu tc 0*MEU10GH001.

- Sa cha, th nghim, hiu chnh cc thit b bo v (r le p lc, van an

ton, van iu khin...) ca h thng du p lc.

- T thay i, chnh nh cc thit b bo v c ci t v nim phong.

- Tho, lp cc ng ni mm gia bnh tch nng vi cc r le p lc.

b) Cm vn hnh h thng khi:

- C chy gn khu vc gn trm du p lc hoc cc xy lanh;

- Cc thit b ca h thng du p lc lp t, th nghim khng t yu cu

k thut;

- Khng c tip a ng c v cc t iu khin;

- Khng c v bo him cnh qut ng c;

- ng c hoc b khi ng mm hoc cp in pht nng bt thng v c

mi kht;

- C r r du, kh ti cc van, mt bch lin kt, khp ni ca cc ng ng

h thng du p lc;

- H thng c du hiu chuyn ng c kh git cc;

- C bt k h hng no trong h thng nhng cha tm ra nguyn nhn hoc

cha khc phc c h hng ;

- Cc thng s vn hnh vt qu gi tr cho php.

iu 5. Quy nh v cng tc bo dng, sa cha

- Cc cng vic sa cha, bo dng trn h thng iu tc u phi thc

hin theo phiu hoc lnh cng tc, tr trng hp x l s c v khim khuyt

nh c nhn vin vn hnh gim st.

- Mi k bo dng h thng iu tc phi kim tra cc van an ton, rle p

lc, thit b ch th. m bo cc gi tr ph hp vi thng s k thut ca h

thng v khng c t thay i.

- Sau mi k i tu, sa cha h thng iu tc phi c chy th nghim

theo chng trnh c ph duyt trc khi a vo vn hnh.

- H thng iu tc phi c kim tra phn tch mu du, nu cht lng

du khng t yu cu k thut th phi lc li hoc thay mi.

iu 6. Kim tra trong vn hnh bnh thng

Trong vn hnh, nhn vin vn hnh cn phi ch kim tra cc mc sau:

- Ngun in cp cho h thng bnh thng.

- H thng tn hiu phi ch th ng, khng c tn hiu bt thng.


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- H thng chiu sng v PCCC phi y .

- Cc thit b trong h thng phi c v sinh sch s, khng c

hin tng r r du trn bn du, trn h thng ng du, trn cc b phn ca

cc secvomotor.

- Mu sc v nhit du bnh thng.

- n, rung ca cc thit b khi ang lm vic

- Mc gia tng nhit ca du v ca cc thit b trong h thng.

- Cc gi tr p lc nm trong gii hn cho php.

- Dng in ca ng c nm trong phm vi cho php.

iu 7. Cc trng hp phi dng khn cp h thng iu tc

- Khi pht hin r cc hin tng e do tnh mng con ngi v thit b.

- V hoc bc ng ng p lc.

- C ting ku hoc rung ng mnh trn tuyn ng ng du.

- C ting ku khc thng trong trm bm du.

- B hng mt trong cc bo v m n tc ng s dn n ngng h thng.

- Xy ra chy, n trn h thng.

- Cc thng s (p lc, nhit , mc du...) vt qu tr s gii hn m bo

v khng tc ng.

- H thng iu khin lm vic sai trnh t (logic iu khin).

CHNG 2: QUY NH V VN HNH H THNG

iu 8. Ch vn hnh h thng iu tc

Trong vn hnh bnh thng, h thng iu tc c vn hnh ch t

ng t xa (kha SAA ti t 0*MEU10GH001 t v tr Remote), cc thit b ca

h thng c vn hnh ch t ng (kha chn ch iu khin tng ng

cho tng thit b ti cc t iu khin t v tr AUTO.

Ch c php chuyn h thng iu tc sang ch t ng ti ch khi t

my ang vn hnh ch pht in (GE).

Ch vn hnh bng tay ti ch h thng iu tc ch thc hin khi th

nghim, hiu chnh hoc sa cha h thng.

i vi h thng du p lc, cc my bm du c vn hnh ch t ng

(cc kha SA1, SA2, SA3 ti t 0*MEU14GH003 v SA2; SA3; SA4 ti t

0*MEU14GH002 t v tr AUTO). Ch cho php vn ch bng tay trong

trng hp th nghim, hiu chnh hoc x l s c.


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iu 9. Trng thi sn sng lm vic ca h thng

- Cc trang thit b c lp t hon ho theo s , kt thc cc phiu, lnh

cng tc trn h thng, ghi s nht k vn hnh cho php a vo lm vic;

- Ngun mt chiu v xoay chiu cp n cc t 0*MEU10GH001,

0*MEU14GH002 v 0*MEU14GH003 bnh thng, cc p t mt trong t

trng thi ng. Cc n chiu sng, qut thng gi v cc b sy hot ng tt;

- Cc b iu khin T.SLG (chnh v d phng), PLC kt thc qu trnh

khi ng, mn hnh HMI hin th bnh thng v khng c cc cnh bo li;

- Cc b khi ng mm lm vic bnh thng;

- Cc van tay ti trm du trng thi ph hp:

Cc van thng m: AA021; AA023; AA024; AA025; AA035;

AA051; AA052; AA053; AA058.

Cc van thng ng: AA036; AA037; AA057; AA059; AA062;

AA083.

- Cc n hin th ch bo ng trng thi lm vic ca cc phn t trong h

thng, khng c n bo li sng;

- Mc du v p lc ti bnh tch nng bnh thng (gi tr mc du tng

ng vi gi tr p lc du), mc du b x bnh thng;

- Cc ng h, thit b o lng mc, p lc du ch th tt;

- Cc kha chn trn cc t iu khin c t v tr ph hp vi ch

vn hnh hin thi ca h thng iu tc.

iu 10. Thao tc a h thng iu tc ra sa cha

10.1. T iu tc in 0*MEU10GH001

- Ln lt ct cc p t mt cp ngun cho cc b iu khin (UPC, SPC,

T.ADT v mn hnh HMI);

- Ct p t mt QF-DC24 cp ngun tng (24VDC);

- Ln lt ct cc p t mt QF-AC220 v QF-DC220;

- Treo bin bo cm ng in vo cc p t mt ct.

10.2. H thng du p lc

Ti t 0*MEU14GH002:


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- Lc cc kha iu khin v v tr Disable hoc v tr O;

- Ln lt ct cc p t mt cp ngun cho cc ph ti;

- Ct p t mt QF-DC24 cp ngun tng (24VDC);

- Ln lt ct cc p t mt QF-AC220 v QF-DC220;


Ti t 0*MEU14GH003:

- Lc cc kha iu khin v v tr Disable hoc v tr O;

- Ct cc p t mt cp ngun mch lc v mch iu khin;


Ti trm du p lc:

- ng van tay AA053;

- M van cch ly AA081 (tc ng bng tay ti van AA082);

- H m van tay AA059 x kh p lc trong cc bnh tch nng n 1MPa;

- H m van tay AA083 x du trong bnh tch nng v b x;

- Theo di mc du trong bnh tch nng gim v khng, ng van AA083 khi

x ht du;

- M van tay AA059 x kh, theo di p lc trong bnh tch nng gim v

khng;

- Lp ro chn, treo bin bo ph hp.

iu 11. Thao tc a h thng v trng thi sn sng lm vic sau sa cha

11.1.H thng du p lc

Ti trm du p lc:

- Kim tra khng c hin tng bt thng ti cc thit b ring l;

- H thng c v sinh sch s, khng c hin tng r r du;

- Thao tc a cc van tay v trng thi ng theo s ;

- Kim tra in tr cch in cc ng c;

- Vn hnh my bm du AP001 ch bng tay ti ch np du cho

bnh tch nng;


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- Theo di mc du ti bnh tch nng v b x du, dng my bm du

AP001 khi mc du trong bnh tch nng t gi tr yu cu (42%);

- Thao tc np kh bng tay cho bnh tch nng bng cch h m van tay

AA057. ng van ny khi p lc trong bnh tch nng t 10 kg/cm2, kim tra

khng c hin tng r r;

- Tip tc m van AA057 iu chnh nng p lc bnh tch nng theo cc mc

(20, 30, 40, 50, 64) kg/cm2. Tng ng vi cc mc, tin hnh kim tra khng

c s r r du ca h thng;

- M cht vnh iu chnh (tc ng bng tay ti van AA029);

- M van AA003 (tc ng bng tay)

Ti t 0*MEU14GH002:

- Kim tra khng c hin tng bt thng ti tng thit b ring l trong t;

- Kim tra ngun in xoay chiu, mt chiu cp n t bnh thng;

- Ln lt ng cc p t mt QF-AC220 v QF-DC220 kim tra in p

ra ca cc b ngun PS1 v PS2 (24VDC);

- ng p t mt QF-DC24 cp ngun tng (24VDC);

- Ln lt ng cc p t mt cp ngun cho cc ph ti;

- Theo di qu trnh khi ng PLC bnh thng;

- Cc n bo hin th ph hp, khng c tn hiu bo li.

Ti t 0*MEU14GH003:



- Ln lt ng cc p t mt cp ngun cho mch lc v mch iu khin;

- Kim tra cc b khi ng mm hin th bnh thng;

- t cc kha iu khin v tr ph hp.

11.2. T iu tc in 0*MEU10GH001




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- Ln lt ng cc p t mt QF-AC220 v QF-DC220 kim tra in p

ra ca cc b ngun PS1 v PS2 (24VDC);

- ng p t mt QF-DC24 cp ngun tng (24VDC);

- Ln lt ng cc p t mt cp ngun cho cc b iu khin (UPC, SPC,

T.ADT v mn hnh HMI);

- Theo di qu trnh khi ng ca cc thit b bnh thng, mn hnh cm

ng v cc n bo hin th ng trng thi hin thi ca h thng;

- t cc kha iu khin v tr ph hp vi ch vn hnh hin thi ca

h thng.

iu 12. Vn hnh h thng iu tc ch Bng tay ti ch

12.1. iu kin ban u

- H thng iu tc trng thi sn sng lm vic;

- H thng nng h thy lc ca nhn nc sn sng lm vic, cc ca van

ang m lm vic. Cc ca van h lu ang m;

- T my trng thi sn sng lm vic, cc h thng ph tr ca t my

sn sng lm vic;

12.2. Khi ng t my v iu chnh tc

- Chuyn kha SAA ti t 0*MEU10GH001 sang v tr Local;

- Chuyn kha SAD ti t 0*MEU10GH001 sang v tr Manual;

- Ti t 0*MEU14GH002, cc kha iu khin SA1; SA2; SA3; SA4; SA5;

SA6 v SA8 t v tr AUTO;

- Ti t 0*MEU14GH003, cc kha iu khin SA1 SA3 t v tr

AUTO;

- M cch ly bng thao tc ti t 0*MEU14GH002:

t kha SA7 v tr Manual;

Lc kha SA71 sang v tr Open;

Khi van m hon ton, n HL23 - ISO VALVE OPENED bo

sng, lc kha SA71 v v tr O;

Kim tra p lc du bnh thng ti ng h CP003;

Chuyn kha SA71 v v tr AUTO.


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- M cht vnh iu chnh bng thao tc trc tip ti van AA029 trn trm

du p lc;

- Thao tc m van khi ng/dng AA003 trn trm du (nu cn);

- Ti t 0*MEU10GH001, Xoay kha SAE sang v tr + m cnh hng

n m 25% ( m khi ng), gim st m cnh hng trn ng h

PA-O (W.G OPENING) hoc trn mn hnh HMI;

- Theo di tc t my trn ng h PA-S (UNIT SPEED) hoc trn mn

hnh HMI. Khi tc t my t 80% tc nh mc, xoay kha SAE sang v

tr - ng cnh hng v gn vi m khng ti (khong 16 20%, ty

theo ct p). Khi tc t my t 95% tc nh mc, xoay kha SAE

iu chnh m cnh hng tng ng vi tc t my l 100% tc nh

mc;

- Trong qu trnh t my quay khng ti phi gim st cc thng s v nhit

, rung, o ca cc , mc v p lc du bnh tch nng.

12.3. Dng t my

- Khi t my ang quay khng ti, xoay kha SAE sang v tr - ng

cnh hng v 0% (gim st m cnh hng trn ng h PA-O (W.G

OPENING) hoc trn mn hnh HMI).

- ng van khi ng/dng AA003 (tc ng bng tay ti van);

- Phanh t my bng tay khi tc t my gim n 20% tc nh mc.

- Theo di tc t my gim v khng (trong khong thi gian 2 pht);

- Gii tr phanh bng tay, kim tra tn hiu cc phanh nh ht;

- Thao tc ng van khi ng/dng AA003 trn trm du;

- ng cht vnh iu chnh bng thao tc trc tip ti van AA029 trn trm

du p lc.

- ng van cch ly AA081 bng thao tc ti t 0*MEU14GH002:

t kha SA7 v tr Manual;

Lc kha SA71 sang v tr Close;

Khi van ng hon ton, n HL24 - ISO VALVE CLOSED bo

sng, lc kha SA71 v v tr O;

Kim tra p lc du bnh thng ti ng h CP003;

Chuyn kha SA71 v v tr AUTO.


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iu 13. Vn hnh h thng iu tc ch T ng ti ch

13.1. iu kin ban u

- H thng iu tc trng thi sn sng lm vic;

- H thng nng h thy lc ca nhn nc sn sng lm vic, cc ca van

ang m lm vic. Cc ca van h lu ang m;

- T my trng thi sn sng lm vic, cc h thng ph tr ca t my

sn sng lm vic;

13.2. iu chnh tn s/cng sut t my bng kha iu khin

- Ti t 0*MEU10GH001, chuyn sang ch T ng ti ch bng cch

chuyn kha SAA sang v tr Local; kha SAD sang v tr AUTO;

- Ti t 0*MEU14GH002, kha SA1 t v tr AUTO-TRANS, cc kha

iu khin cn li v tr AUTO;

- Ti t 0*MEU14GH003, cc kha iu khin t ch AUTO;

- Ti t 0*MEU10GH001: lc kha SAB sang v tr + hoc - iu

chnh tn s/cng sut t my theo yu cu.

13.3. iu chnh tn s/cng sut t my bng thao tc ti HMI

- Ch vn hnh ny ch phc v cho cng tc th nghim, hiu chnh h

thng iu tc, thc hin bi Phn xng sa cha lin quan.

- Ch vn hnh ny ch c hiu lc khi mc vn hnh l mc 2 hoc mc

3.

iu 14. Vn hnh h thng iu tc ch T ng t xa

- Trong ch ny, vic khi ng/dng v tng gim tn s/cng sut c

thc t t iu khin ti ch t my LCU t my hoc t CVS ti CCR.

- Ti t 0*MEU10GH001: Chuyn sang ch T ng t xa bng cch

chuyn kha SAA sang v tr REMOTE; kha SAD sang v tr AUTO.

iu 15. Mt s thao tc ti HMI

15.1. Tra cu cc thng s h thng iu tc ti mn hnh HMI:

- Chn Parameters.

- Chn Aplication.

- Chn UPC hoc SPC1 xem thng s ca khi UPC hoc SPC.


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15.2. Chuyn i b T.SLG Lm vic sang T.SLG D phng:

- Thc hin chuyn sang b d phng khi T.SLG Lm vic ang vn hnh

m xut hin cc h hng ln.

- Cch chuyn i t mn hnh HMI:

Chn Specific functions.

Chn Redudancy.

Chn Ackn.

15.3. Tra cu thng tin cnh bo, s kin ca h thng iu tc:

- Ti mn hnh HMI chn Faults.

- Chn Current xem cc h hng hin hnh.

- Chn History xem tt c cc h hng xy ra.

- Chn Faults TSLG(N) xem cc h hng ca b T.SLG Lm vic.

- Chn Faults TSLG(S) xem cc h hng ca b T.SLG D phng.

- Chn Faults T.ADT xem cc h hng ca b T.ADT.

iu 16. Vn hnh cc my bm du

16.1. Chn my bm du lm vic chnh/d phng hoc t ng lun chuyn:

Chn my bm du lm vic chnh/d phng

- Kim tra p lc v mc du trong bnh tch nng nm trong phm vi cho

php;

- Chy bm d phng ch bng tay ti t iu khin. Kim tra bm lm

vic tt;

- Lc kha SA2, SA3 sang v tr AUTO;

- Chuyn kha iu khin SA1 ti t 0*MEU14GH002 sang v tr:

2#NORMAL: AP002 chnh, AP003 d phng

3#NORMAL: AP003 chnh, AP002 d phng

- H m van AA083 x du v b x. Kim tra my bm du chnh t ng

lm vic t ng tt;

- ng li van AA083 khi my bm du chnh bt u khi ng;

- Kim tra p lc, mc du ca bnh tch nng gi tr nh mc;


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Chn ch t ng chuyn i: phng thc ny, h thng iu khin s t

ng lun phin khi ng gia hai my bm du chnh.

- Ti t 0*MEU14GH002: kha SA1 t v tr Auto-Trans;

- Ti t 0*MEU14GH003: kha kha SA2 v SA3 t v tr AUTO.

16.2. Vn hnh cc my bm du ch bng tay:

- Kim tra h thng trng thi sn sng lm vic;

- Kim tra p lc v mc du trong bnh tch nng thp hn gi tr nh mc;

- i vi bm AP001 (AP002, AP003):

Ti t 0*MEU14GH002: chuyn kha SA2 (SA3, SA4) sang v tr

MANUAL m van x ti AA009 (AA013, AA017);


MANUAL. Sau , lc kha SA11 (SA21, SA31) bm AP001

(AP002, AP003) chy khng ti. Kim tra ng c lm vic n nh;

Ti t 0*MEU14GH002: chuyn kha SA2 (SA3, SA4) sang v tr O

ng li van x ti AA009 (AA013, AA017);

Theo di mc v p lc du trong bnh tch nng qua cc n hin th

trn t iu khin.

- Khi mc du trong bnh tch nng t yu cu (c n tn hiu p lc v mc

du bnh thng sng):


MANUAL m van x ti AA009 (AA013, AA017);


MANUAL. Sau , lc kha SA11 (SA21, SA31) sang v tr O

dng my bm du AP001 (AP002, AP003);

t li ch iu khin bnh thng cho bm v van x ti.

iu 16. Hiu chnh mc v p lc du trong bnh tch nng

Khi p lc v mc du trong bnh tch nng khng tng ng nhau do h thng

t ng iu chnh mc v p lc lm vic khng chnh xc th phi tin hnh iu

chnh bng tay.

16.1. Th tch kh trong bnh tch nng nhiu hn nh mc:

- Kim tra ti bnh tch nng: mc du thp hn 1.601 mm, p lc gi tr

nh mc (64 bar);


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- Ti t 0*MEU14GH002: chuyn kha SA5 sang v tr DISABLE;

- Ti t GH003: chuyn cc kha SA1, SA2, SA3 sang v tr O;

- M van AA059 x kh, ng thi theo di p lc bnh vn nm trong

phm vi cho php ty theo mc du hin ti trong bnh. Sau ng van

AA059;

- Chy bm AP001 hoc AP002 hoc AP003 ch iu khin bng tay

np du n mc nh mc;

- Thit lp ch vn hnh t ng cho cc my bm du v van.

16.2. Th tch kh trong bnh tch nng t hn so vi nh mc

- Kim tra ti bnh tch nng: mc du cao hn 1.601 mm, p lc gi tr

nh mc (64 bar);

- Ti t 0*MEU14GH002: chuyn kha SA5 sang v tr DISABLE;

- Ti t GH003: chuyn cc kha SA1, SA2, SA3 sang v tr O;

- M van AA083 x mc du v gi tr nh mc 1.601 mm;

- M van AA057 np kh n gi tr nh mc;

- Thit lp ch vn hnh t ng cho cc my bm du v van x ti.

CHNG 3: CC HIN TNG BT THNG,

NGUYN NHN V BIN PHP X L

iu 17. iu tc t ng chuyn t T.SLG Lm vic sang T.SLG D phng

a) Hin tng:

- Tn hiu cnh bo bng m thanh, n bo s c ti t LCU v CCR. Ti

mn hnh HMI t 0*MEU10GH001 v MIMIC phng iu khin trung tm

bo:

R29N MAIN T-SLG UPC MAJOR

R80S STANDBY T-SLG

- iu tc t ng chuyn t T.SLG Lm vic sang T.SLG D phng.

- Ti t 0*MEU10GH001:

n HL4 - T-SLG UPC MAJOR sng, bo h hng chnh b T.SLG

lm vic.


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n Fault Major khi UPC Lm vic sng.

n Fault khi SPC Lm vic sng.

b) Nguyn nhn:

- Mt tn hiu phn hi m servomotor.

- Mt tn hiu phn hi van phn phi chnh.

- Mt ngun cp UPC (N).

- Mt ngun cp SPC (N).

- H hng mch t kim tra (Watchdog) ca SPC (N) hoc UPC (N).

- H hng phn cng ca khi UPC hoc SPC.

- Mt kt ni gia UPC (N) v SPC (N).

- H hng thng tin MODBUS vi h thng iu khin.

- Mt tn hiu phn hi cng sut.

c) Bin php x l:

- Kim tra a b T.SLG (S) vo lm vic tt.

- Nu mt tn hiu phn hi m servomotor, bo Phn xng sa cha

kim tra x l.

- Nu mt tn hiu phn hi van phn phi chnh, bo Phn xng sa cha

kim tra x l

- Nu mt ngun cp UPC (N) (nhy QF- UPC (N)), kim tra s b tnh trng

thit b, nu khng c g bt thng cho php ng QF- UPC (N) li mt ln.

- Nu mt ngun cp SPC (N) (nhy QF- SPC (N)), kim tra s b tnh trng

thit b, nu khng c g bt thng cho php ng QF- SPC (N) li mt ln.

- Nu h hng mch t kim tra (Watchdog) ca SPC (N) hoc UPC (N), bo

Phn xng sa cha kim tra x l.

- Nu h hng phn cng ca khi UPC hoc SPC, bo Phn xng sa cha

kim tra x l.

- Nu mt kt ni gia UPC (N) v SPC (N), bo Phn xng sa cha kim

tra x l.

- Nu mt tn hiu phn hi cng sut, bo Phn xng sa cha kim tra x

l.


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iu 18. Mt tn hiu mn hnh HMI

a) Hin tng:

- Mn hnh HMI khng hin th.

b) Nguyn nhn:

- Nhy ptmt QF-HMI cp ngun cho HMI.

- Mt kt ni n mn hnh HMI.

c) Bin php x l:

- Nu ptmt QF-HMI nhy, kim tra s b nu khng c g bt thng cho

php ng li QF-HMI mt ln.

- Nu mt kt ni n mn hnh HMI; bo Phn xng sa cha kim tra x

l.

iu 19. H hng T.ADT khi khi ng t my

a) Hin tng:

- T my dng s c sau khi c lnh khi ng.


mn hnh HMI t 0*MEU10GH001 v MIMIC phng iu khin trung tm

bo: RD29 TADT MAJOR


n Major Fault khi T.ADT sng.

n Fault T.ADT mn hnh HMI sng.

b) Nguyn nhn:

- Mt tn hiu o lng tc trong qu trnh khi ng.

- H hng cm bin o lng tc .

c) Bin php x l:

- Theo di qu trnh dng my v phanh bng tay t my khi tc 25% tc

nh mc (theo qui trnh vn hnh v x l s c t my).

- Bo Phn xng sa cha kim tra x l.

iu 20. H hng T.ADT khi t my ang vn hnh

a) Hin tng:


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- T my dng s c.


mn hnh HMI t 0*MEU10GH001 v CVS ti CRR: RD29 TADT MAJOR


n Major Fault khi T.ADT sng.

n Fault T.ADT mn hnh HMI sng.

b) Nguyn nhn:

- H hng mch t kim tra Watchdog.

- H hng phn cng.

- Mt tt c cc ngun o lng tc .

c) Bin php x l:

- Theo di qu trnh dng my (theo qui trnh vn hnh v x l s c t

my).

- Bo Phn xng sa cha kim tra x l.

iu 21. T my khng tng, gim cng sut tc dng c

a) Hin tng:

- Khng tng, gim cng sut t my t LCU t my v t CVS phng iu

khin trung tm.

b) Nguyn nhn:

- Mt kt ni tn hiu tng, gim cng sut t LCU t my n t

0*MEU10GH001.

- H hng rle tng/gim cng sut R21 v R22.

- H hng rle R80SW iu khin van AA002.

c) Bin php x l:

- Chuyn iu tc sang ch Auto Local v tin hnh tng, gim cng

sut. Nu vn khng tng, gim cng sut c bo Phn xng sa cha kim

tra x l.

- Chuyn iu tc sang lm vic vi b T.SLG (S) tin hnh tng, gim cng

sut. Nu vn khng tng, gim cng sut c bo Phn xng sa cha kim

tra x l.


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iu 22. Mt ngun AC 220V hoc DC 220V cp cho t 0*MEU10GH001

a) Hin tng:


mn hnh HMI t 0*MEU10GH001 v CVS phng iu khin trung tm bo:

PS1 POWER MODULE hoc PS2 POWER MODULE

- Ti t 0*MEU10GH001: n tn hiu HL2 hoc HL3 tt.

b) Nguyn nhn:

- Nhy ptmt cp ngun QF-AC220 hoc QF-DC220 ti 0*MEU10GH001.

c) Bin php x l:

- Kim tra tnh trng cc khi ngun, nu khng c g bt thng cho php

ng li cc ptmt cp ngun 1 ln.

- Nu ng li mt ln m ptmt cp ngun vn nhy, bo Phn xng sa

cha kim tra x l.

iu 23. Mt ngun AC 220V hoc DC 220V cp cho t 0*MEU14GH002

a) Hin tng:


mn hnh HMI t 0*MEU10 GH001 v CVS phng iu khin trung tm bo:

GOVERNOR OIL STATION

- Ti t 0*MEU14 GH002: n tn hiu HL2 hoc HL3 tt.

b) Nguyn nhn:

- Nhy ptmt cp ngun QF-AC220 hoc QF-DC220 ti 0*MEU14

GH002.

c) Bin php x l:

- Kim tra tnh trng cc khi ngun, nu khng c g bt thng cho php

ng li cc ptmt cp ngun 1 ln.

- Nu ng li mt ln m ptmt cp ngun vn nhy, bo Phn xng sa

cha kim tra x l.

iu 24. p lc trong bnh tch nng gim thp s c

a) Hin tng:

- Ti t 0*MEU14 GH002: n HL17 - TOO LOW sng.


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P_TANK STOP_U OIL PRES(CP052S)

- T my dng khn cp t bo v c kh thy lc.

b) Nguyn nhn:

- R r ln trn h thng ng du

- Cc bm lm vic hiu sut thp hoc khng cp du

- H thng iu khin lm vic sai:

Cm bin p lc du thp s c (CP0052S) tc ng nhm.

H hng cc cm bin (CP0053S, CP0055S) iu khin chy bm chnh

v bm d phng.

c) Bin php x l:

- Kim tra t my dng, cnh hng ng hon ton, cht vnh iu

chnh.

- Nu kim tra p lc du thc t ti bnh tch nng khng p lc thp s c

th bo Phn xng sa cha lin quan kim tra v x l cm bin p lc thp

s c.

- Nu kim tra thc t p lc du ti bnh gim thp ti mc s c m khng

c v hoc r r ln h thng du th bo phn xng sa cha kim tra cc

my bm du v h thng t ng iu khin bm.

- Nu r r du h thng:

Tin hnh dng bm.

Thao tc ng van cch ly AA081, nu van khng ng.

M van AA083 x du v b x.

C lp h thng du p lc ra sa cha. Bo phn xng sa cha kim

tra v x l.

iu 25. Mc du trong bnh tch nng gim thp n mc dng s c t my

a) Hin tng:

- Ti t 0*MEU14 GH002: n HL8 - LOW sng.


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P_TANK STOP_U OIL LEVEL(CL053S).

- T my dng khn cp t bo v c kh thy lc.

b) Nguyn nhn:

- Cm bin mc du thp s c (CL053S) tc ng nhm.

- H hng mch iu khin t ng my bm du hoc bm lm vic nhng

khng cp du.

c) Bin php x l:


chnh.

- Nu kim tra mc du thc t ti bnh tch nng khng mc thp s c th

bo Phn xng sa cha lin quan kim tra v x l cm bin p lc cao s

c.

- Nu do h thng iu khin t ng cc my bm du lm vic sai hoc

bm lm vic nhng khng cp du, th tin hnh ng my bm du bng tay,

bo Phn xng sa cha lin quan kim tra, x l.

iu 26. Mc du trong bnh tch nng tng cao pht tn hiu

a) Hin tng:

- Ti t 0*MEU14 GH002: n HL14 - TOO HIGH sng.



P_TANK FILL AIR OIL LVL(CL059S).

- H thng np kh t ng lm vic.

b) Nguyn nhn:

- H hng van AA022, lm bm AP001 lin tc bm du vo bnh tch nng.

- Cm bin CL059S hoc van np kh AA054 h hng, h thng np kh

khng t ng lm vic.

c) Bin php x l:

- Nu do h hng van AA022:


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Kim tra mc du thc t ti bnh tch nng qu mc (CL059S).

Tin hnh dng my bm du v thc hin iu chnh mc v p lc

bng tay. ng thi thng xuyn theo di qu trnh lm vic ca h

thng.

Bo co Phn xng sa cha lin quan kim tra x l.

- Nu cm bin CL059S b h hng hoc van np khng t ng lm vic:

Chuyn kha iu khin SA5 (ti t 0*MEU14 GH002) sang v tr

MANUAL, tin hnh iu chnh bng tay mc v p du bnh tch

nng v gi tr nh mc.

Theo di thng xuyn mc v p lc du, nu ngoi gi tr nh mc

th tin hnh iu chnh bng tay.

Bo co Phn xng sa cha lin quan kim tra x l.

iu 27. Mc du b x gim thp thp s c

28.1. Mc du trong bnh tch nng gim thp n mc dng s c t my

a) Hin tng:

- Ti t 0*MEU14 GH002 n HL6 - TOO LOW sng.



GOV SUMP TANK OIL LEVEL(CL004S).

- Dng s c cc my bm du.

- Dng t my t bo v c kh thy lc.

b) Nguyn nhn:

- Cm bin bo mc du b x thp s c (CL002S) tc ng sai.

- R r trn h thng ng du.

c) Bin php x l:


chnh.

- Kim tra mc du thc t ti b x khng mc (CL004S) th bo phn

xng sa cha kim tra v x l.


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- Kim tra thc t mc du mc CL004S, v c r r du trn h thng. Tin

hnh c lp ch r du, h thng v bo Phn xng sa cha lin quan b

sung du, x l.

28.2. Mc du trong bnh tch nng gim thp n mc dng s c t my v ng van

cch ly AA081

a) Hin tng:

- Ti t 0*MEU14 GH002: n HL7 - TOO LOW sng.



P_TANK C_ISO-V OIL LEVEL(CL052S).

- T my dng.

- Van cch ly AA081 ng.

- Cc phai nhn nc t my ng.

b) Nguyn nhn:

- Cm bin mc du thp s c (CL052S) tc ng nhm.

- V ng ng du trn h thng.

c) Bin php x l:


chnh. Nu cnh hng cha ng hon ton th phi nhanh chng x l khi

phc trm du ng cnh hng bng tay

- Kim tra mc du thc t ti bnh tch nng, nu xc nh do cm bin lm

vic sai th bo Phn xng sa cha lin quan kim tra, x l.

- Nu r r ln trn h thng ng du:

Tin hnh dng cc my bm du.

Kim tra van cch ly ng.

M van AA083 x du v b x.

C lp h thng, bo Phn xng sa cha kim tra v x l.

iu 28. Mc du b x gim thp thp s c

a) Hin tng:

- Ti t 0*MEU14 GH002 n HL6 - TOO LOW sng.


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GOV SUMP TANK OIL LEVEL(CL004S).

- Dng s c cc my bm du.

- Dng t my t bo v c kh thy lc.

b) Nguyn nhn:

- Cm bin bo mc du b x thp s c (CL002S) tc ng sai.

- R r trn h thng ng du.

c) Bin php x l:


chnh.

- Kim tra mc du thc t ti b x khng mc (CL004S) th bo phn

xng sa cha kim tra v x l.

- Kim tra thc t mc du mc CL004S, v c r r du trn h thng. Tin

hnh c lp ch r du, h thng v bo Phn xng sa cha lin quan b

sung du, x l.

iu 29. C tn hiu bo tc b lc AT006

a) Hin tng:



GOV DI- OIL FILTERS CLOG(CP016S).

b) Nguyn nhn:

- Li lc ca b lc b bn.

- Du c nhiu tp cht c hc

c) Bin php x l:

- Chuyn i b lc d phng sang lm vic v x l sc ra lc.

- Bo t phn xng sa cha lin quan kim tra, x l nu vn bo tc b

lc sau khi chuyn i

iu 30. C tn hiu bo tc b lc u ht cc my bm du

a) Hin tng:


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GOV P1 OIL FILTER CLOG(CP011S) cho bm AP001.

GOV P2 OIL FILTER1 CLOG(CP012S) hoc GOV P2 OIL

FILTER2 CLOG(CP013S) cho bm AP002.

GOV P3 OIL FILTER1 CLOG(CP014S) hoc GOV P3 OIL

FILTER2 CLOG(CP015S) cho bm AP003.

b) Nguyn nhn:

- Li lc ca b lc b bn.

- Du c nhiu tp cht c hc.

c) Bin php x l:

- i vi bm AP001 th thng xuyn theo di thi gian lm vic ca bm.

- i vi hai bm AP002 v AP003 th chuyn i bm b tc lc ra d

phng, a bm khng tc lc vo lm vic chnh v thng xuyn theo di

qu trnh lm vic ca bm.

- Bo co vi cp trn v Phn xng sa cha lin quan ch thi im thch

hp dng t my. C lp h thng du, sc ra hoc thay li lc.

- Bo t ha du ly mu du v phn tch.


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PHN C: GII THIU CHUNG V H THNG IU TC TUA BIN THY LC

1. Chc nng cng ngh ca h thng iu tc

H thng iu tc tua bin thy lc m bo cc ch lm vic sau y ca t

my:

- Khi ng, dng t my v a t my v ch quay ng b vi tn s

li.

- Hot ng ca t my ch pht cng sut hu cng (hot ng ring l

v hot ng theo nhm) v ch b ng b;

- a t my t ch vn hnh ny sang ch vn hnh khc.

- iu chnh t ng mt cch bn vng v n nh tn s quay khi t my

lm vic cc ch sau:

+ Quay khng ti;

+ Vn hnh cho khu vc li c lp, bao gm c vn hnh song song vi cc

t my khc;

+ Vn hnh trong h thng li in quc gia;

+ Sa thi v tip nhn ti;

- Gi mc cng sut c t sn t bng iu khin ti ch hoc t trung

tm iu khin ca nh my, hoc t h thng iu khin nhm;

- iu khin t my t b nh tr s trung tm ch iu khin nhm;

- Hn ch m cnh hng theo ct nc;

- Hn ch cng sut hu cng ca my pht;

- Dng s c t my;

- Bo v t my, tc ng ti c cu chng s c ca h thng iu khin khi

c trc trc trong h thng iu tc v tn s quay tng ln ti 115% tn s

quay nh mc ;

- To ra cc tn hiu cnh bo gi ti cp iu khin pha trn.

2. M t h thng iu tc

H thng iu tc tua bin c cu thnh bi cc thnh phn chnh sau:

T iu khin h thng iu tc 0*MEU10 GH001 (t iu tc in) lp t ti

cao trnh 118,40 (sn gian my).


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Trm du p lc v c cu chp hnh in - thy lc (t iu khin h thng

du p lc 0*MEU14 GH002; T iu khin bm du 0*MEU14 GH003) lp

t ti cao trnh 112,25m (sn my pht).

2.1. T iu tc in (0*MEU10 GH001)

T iu tc in bao gm cc khi chc nng sau:

- UPC: B iu khin qu trnh t my (Unit Processing Controller).

- SPC: B iu khin qu trnh servomotor (Servo Processing Controller).

- HMI: Giao din ngi - my (Human-Machine Interface).

- T.ADT: Khi o lng tc tuabin (Turbine auxilary digital tachometer).

2.1.1. B iu khin qu trnh t my (UPC)

B iu khin qu trnh t my (UPC) gm 2 b, mt b lm vic v mt d

phng, m bo 100% tnh d phng ca h thng.

B iu khin qu trnh ca t my UPC thc hin theo thut ton cho to tn

hiu iu khin cho b iu khin v tr servomotor SPC.

2.1.2. B iu khin v tr servomotor (SPC)

B iu khin v tr servomotor gm 2 b, mt b lm vic v mt d phng,

m bo 100% tnh d phng ca h thng.

B iu khin qu trnh servomotor (SPC) thc hin theo thut ton cho

iu khin van kch thch.

2.1.3. Thit b o lng tc T.ADT

Thit b o lng tc dng gim st tc t my v to ra cc ngng

tc phc v cho cc lgic iu khin t my.

2.1.4. Thit b giao din ngi my HMI

Thit b giao din ngi - my l mt mn hnh cm ng dng tra cu v

thay i cc thng s ca b iu khin qu trnh t my UPC, b iu khin qu trnh

servomotor SPC v b o lng tc t my T.ADT; ng thi tra cu, xc nhn

cc s c v truy cp n cc ch v cc chc nng ring.

2.2. H thng du p lc v c cu chp hnh thy lc

2.2.1. H thng du p lc

Trm du p lc thc hin nhim v tch tr v cung cp nng lng n nh cho h thng iu tc tua bin. H thng gm cc thnh phn chnh sau:


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02 bnh tch nng du - kh (01 bnh cha du - kh MEU31 BB003; 01 bnh cha kh MEU31 BB004)

01 b du MEU20 BB001

02 my bm du chnh (AP002; AP003)

01 my bm du ph (AP001)

02 t iu khin (GH002; GH003) Nng lng phc v h thng iu chnh tua bin c tch tr trong 02 bnh

tch nng. Nng lng lun c m bo n nh nh h thng iu khin t ng mc v p lc du trong bnh tch nng. p lc du trong bnh c t ng b sung t h thng kh nn cao p (6,7MPa), mc du trong bnh c b sung t ng bi cc my bm du. Nguyn l lm vic ca trm du p lc nh sau:

Trong qu trnh lm vic bnh thng, my bm du ph AP001 s vn hnh ch lin tc nhm gim thi gian lm vic v tn sut khi ng ca 2 bm du chnh. m bo cung cp lng du p lc cho vic iu chnh tua bin ch vn hnh xc lp. Lng du c cp lin tc bi my bm AP001 vi lu lng 1,14 lt/s, trng hp lng b sung ln hn lng tiu th s lm p lc du h thng tng ln. Khi p lc du tng n 64 bar, van trnh t p lc AA023 s tc ng (ni thng A vi T) lm van AA009 m. Lc ny my bm du ph s bm du tun hon qua b lm mt AH001.

Trong qu trnh lm vic nu lng du cp cho h thng iu chnh tuabin ln hn kh nng p ng ca bm, p lc v mc du bnh tch nng s gim. Khi gim ti gi tr t, h thng iu khin s gi lnh khi ng khng ti mt trong 2 my bm du. Lc ny khoang trn van x ti mt p lc v du c bm t b x vo bm, qua van x ti chy v b x. Sau thi gian ci t 7s s i ct in cun dy van iu khin van x ti lm cho khoang trn van x ti c p lc v van x ti ng li. Du c bm t b x qua van mt chiu, qua van cch ly v i vo bnh tch nng. Khi p lc v mc du t ti gi tr dng bm th cm bin s tc ng a lnh i dng bm. Trng hp my bm du chnh khng lm vic hoc lm vic vi hiu sut thp lm cho mc v p lc du trong bnh tch nng tip tc gim n gi tr t, h thng iu khin s t ng gi lnh khi ng my bm du chnh cn li (qu trnh lm vic tng t nh trn).

Khi p lc v mc du trong bnh tch nng tng cao n gi tr t, h thng iu khin s t ng np kh b sung qua van in t AA054. Khi mc du gim xung n gi tr t, van AA054 s t ng ng li.

2.2.1.1. Bnh tch nng Hai bnh tch nng tng t nhau c ni thng nhau bng ng ng chp

pha trn ca mi bnh. - Th tch 6,8 m3 - Th tch kh 10.283 dm3 - Th tch du 3.317 dm3 - Van an ton m hon ton 70 bar Cc mc t cm bin (tnh theo chun c s y bnh):


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- Chiu cao mc du nh mc 1.454 mm (61,7 bar) - Mc v p lc dng bm chnh v np kh 1.601 mm (64 bar) - Mc v p lc dng bm d phng 1.551 mm (63,2 bar) - Mc v p lc chy bm chnh 1.504 mm (62,5 bar) - Mc v p lc chy bm d phng 914 mm (54,6 bar) - Mc v p lc thp dng s c t my 764 mm (52,8 bar) - Mc v p lc ng van AA045 500 mm (50 bar) - Mc v p lc cao dng s c t my 1.801 mm (67,3 bar)

2.2.1.2. B du - Chiu di 4 m - Chiu rng 2 m - Chiu cao 1,8 m - Dung tch 12 m3 - Th tch du nh mc 4,5 m3

2.2.1.3. My bm du chnh - S lng 2 bm

- K hiu vn hnh AP002 v AP003

- Loi SMF940R42U12.1/W28

- Lu lng 10,8 l/s

- p lc 70 kG/cm2

- Kiu ng c Y315M1-4-B5

- Tc ng c 1480 v/p

- Cng sut ng c 132 kW

- in p 380 VAC - 50Hz

2.2.1.4. My bm du ph

- S lng 1 bm

- K hiu vn hnh AP001

- Loi SMF120R42U12.1/W28

- Lu lng 1,14 l/s

- p lc 70 kG/cm2

- Kiu ng c Y160L-4-B5

- Tc ng c 1460 v/p

- Cng sut ng c 15 kW


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- in p 380 VAC - 50Hz

2.2.1.5. B khi ng mm

- K hiu ATS48C41Q

- S lng 02

- Dng nh mc 320 A

- Cng sut 160 kW

- Di in p lm vic nh mc (230 415) VAC

2.2.2. C cu chp hnh in thy lc

H thng iu tc c bao gm cc thit b chnh sau:

- Van phn phi chnh AA001

- Van kch thch AA002

- Van khi ng/dng AA003

- Van iu khin ng an ton cnh hng AA004

- Van iu khin ng cnh hng 2 dc AA005

- Van phn phi ng cnh hng 2 dc AA006

- B lc du kp AT006

- Cc ng h, cm bin, r le p lc; cng tc hnh trnh

2.2.2.1. Nguyn l lm vic ca van chnh AA001

Do c cu to vi sai v tit din ca van chnh nn khi pha khoang bn phi ca

AA001 c p lc s lm cho piston van dch chuyn v pha bn tri lm thng ng

du c p lc i m cnh hng. Ngc li khi pha khoang bn phi ca AA001 mt

p lc s lm cho piston van dch chuyn v pha bn phi lm thng ng du c p

lc i ng cnh hng.

2.2.2.2. Nguyn l lm vic ca van kch thch AA002

Nguyn l lm vic ca van kch thch da trn nguyn tc tc ng tng h

gia t trng ca cun dy v nam chm vnh cu. Nu trong cun dy c dng in

i qua th n c dch chuyn di tc ng ca lc in t. Gi tr v hng ca s

dch chuyn ny tng ng vi gi tr v cc tnh ca tn hiu in a ti cun dy.

S chuyn dch ca cun dy lm cho piston van AA002 dch chuyn sang tri hoc


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sang tong ng vi vic cung cp du p lc hoc x du khoang bn tri ca van

AA001.

2.2.2.3. Nguyn l lm vic ca van khi ng/dng AA003

Van khi ng/dng AA003 tham gia vo qu trnh khi ng, dng bnh

thng cng nh dng s c t my. Khi c in vo cun dy m ca van AA003 th

piston van dch chuyn sang tri lm thng ng du iu khin t van AA002 n

van AA001. Ngc li khi cp in vo cun dy ng th piston van AA002 s dch

chuyn sang phi lm cho khoang tri ca van AA001 thng vi ng du x.

2.2.2.4. Nguyn l lm vic ca b lc du kp AT006

B lc du kp AT006 c dng lc sch du a ti cc van iu khin

in - thy lc ca iu tc c. Cu to b lc gm c 2 b lc du c lp, bnh

thng mt b lm vic v b cn li v tr d phng. Khi b lc lm vic b bn s

chuyn sang b lc d phng bng cn gt chuyn i.

2.3. Thng s k thut ca h thng iu tc

2.3.1. Thng s k thut ca van AA001 v AA002

Van phn phi chnh AA001:

- Loi van DN150

- p lc 70 bar

- Lu lng lm vic ti a qua van 150 l/s

- Lu lng lm vic ln nht qua van 10,8 l/s

Van kch thch AA002

- ng knh 155 mm

- Chiu cao 250 mm

- Khi lng 24 kg

- p lc lm vic 10 70 bar

- S lc du (mc lc tinh)

40 m nu P > 70 bar

70 m nu P < 70 bar

- ng knh li phn phi 10 mm

- T trng nam chm 12500 Gauss


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- T s (dch chuyn li) 2,15 mm/A

- Dng in ln nht trong cun dy 0,54 A

- in tr cun dy 26

- cng l xo 2,8 daN/mm

2.3.2. Thng s tn hiu vo v ra ca UPC

Thng s u vo:

- T b bin i o lng ct p 420 mA

- Tn s my pht t bin in p 2PT 110V

- Tn s li t bin in p 3PT 110V

- T cm bin tc 420 mA

- T b bin i cng sut 420 mA

- u vo s 20 knh

Thng s u ra:

- Cng sut t my 420 mA

- Gii hn m 420 mA

- Tn s t my 420 mA

- u ra s 18 knh

2.3.3. Thng s tn hiu vo v ra ca SPC

Thng s tn hiu vo:

- T cm bin v tr servomotor 420 mA

- T cm bin v tr van phn phi 420 mA

- u vo s 9 knh

Thng s tn hiu ra:

- Tn hiu iu khin van kch thch 10 V

- Tn hiu m servomotor 420 mA

- u ra s 2 knh

2.3.4. Thng s u vo v ra ca T.ADT

- T cm bin tc t my 420 mA


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- Tn s my pht t bin in p 2PT 110 V

- Tn s li t bin in p 3PT 110 V

- u ra s 18 knh

2.4. Trang thit b cp ngun ti h thng cc t iu tc

2.4.1. T iu tc in 0*MEU GH001

- QF-AC220: Cp ngun 220VAC cho b ngun PS1

- QF-DC220: Cp ngun 220VDC cho b ngun PS2

- QF DC24: p t mt tng DC24V cho cc ph ti trong t

- QF UPC-N: Cp ngun 24VDC cho UPC-N

- QF UPC-S: Cp ngun 24VDC cho UPC-S

- QF SPC-N: Cp ngun 24VDC cho SPC-N

- QF SPC-S: Cp ngun 24VDC cho SPC-S

- QF TADT: Cp ngun 24VDC cho TADT

- QF HMI: Cp ngun 24VDC cho HMI

2.4.2. T iu khin h thng du p lc 0*MEU14 GH002

- QF-AC220: Cp ngun 220VAC cho b ngun PS1

- QF-DC220: Cp ngun 220VDC cho b ngun PS2

- QF DC24: p t mt tng 24VDC cho cc ph ti trong t

- QF-RLY: Cp ngun 24VDC cc r le

- QF-PLC: Cp ngun 24VDC cho PLC

- QF-SV1: Cp ngun 24VDC cho cc van x ti

- QF-SV2: Cp ngun 24VDC cho van np kh, van cch ly

- QF-SV3: Cp ngun 24VDC cho van AA003; AA005; AA029

- QF-SV4: Cp ngun 24VDC cho van d phng (AA03032)

- QF-LIT: Cp ngun 24VDC cho cc n bo trn mt t

2.4.3. T iu khin bm du 0*MEU GH003

- QF1: Cp ngun lc cho bm AP001

- QA1: Cp ngun 24VDC cho mch iu khin bm AP001


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- QA4: Cp ngun iu khin cho b khi ng mm ATS1



- QA5: Cp ngun iu khin cho b khi ng mm ATS2

2.5. Trang b iu khin, hin th trn mt t

2.5.1. T iu tc in 0*MEU10 GH001

ng h v n hin th

- PA-S: ng h hin th tc t my

- PA-O: ng h hin th m cnh hng

- PA-L: ng h hin th gii hn m cnh hng

- PA-AP: ng h hin th cng sut t my

- HL1: n bo ngun cp 24VDC bnh thng

- HL2: n bo ngun cp 220VDC bnh thng

- HL3: n bo ngun cp 220VAC bnh thng

- HL4: H hng b T.SLG chnh

- HL5: H hng b T.SLG d phng

- HL6: ang vn hnh b T.SLG lm vic

- HL7: B T.SLG-N chnh ang lm vic

- HL8: B T.SLG-S d phng ang lm vic

- HL9: ang vn hnh ch t ng ti ch

- HL10: ang vn hnh ch bng tay ti ch

- HL11: Van cch ly AA081 ang m

- HL12: Van cch ly AA081 ang ng

- HL13: Cht c kh ang m

- HL14: Cht c kh ang ng

Cc kha iu khin v nt n


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- SAA: Kha chn ch T xa/Ti ch

- SAB: Kha tng, gim ti/tn s

- SAD: Kha chn ch T ng/ Bng tay

- SAE: Kha tng, gim m servomotor bng tay

- SAF: Nt n dng s c

- SBG: Nt n th n

2.5.2. T iu khin h thng du p lc 0*MEU14 GH002

n hin th

- HL1: Bo ngun 24VDC bnh thng

- HL2: Bo ngun 220VDC bnh thng

- HL3: Bo ngun 220VAC bnh thng

- HL4: Bo mc du b x cao

- HL5: Bo mc du b x thp

- HL6: Bo mc du b x qu thp, dng t my

- HL7: Mc du bnh tch nng qu thp (ng van cch ly)

- HL8: Mc du bnh tch nng thp, dng t my

- HL9: Mc du bnh tch nng thp, gi tn hiu khi ng my

bm du d phng

- HL10: Mc du bnh tch nng bnh thng, cho php khi ng

t my

- HL11: Mc du bnh tch nng thp, gi tn hiu khi ng my

bm du chnh

- HL12: Mc du bnh tch nng bnh thng, gi tn hiu dng

my bm du d phng v cho php ng van cch ly

- HL13: Mc du bnh tch nng bnh thng, gi tn hiu dng

my bm du chnh v dng np kh

- HL14: Mc du bnh tch nng qu cao, gi tn hiu cnh bo v

t ng np kh

- HL15: Cnh bo c nc ln trong du b x


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- HL16: Cho php ng van cch ly

- HL17: p lc bnh tch nng qu thp, dng t my

- HL18: p lc bnh tch nng thp, khi ng my bm du d

phng

- HL19: p lc du bnh tch nng bnh thng, cho php khi ng

t my

- HL20: p lc du bnh tch nng thp, gi tn hiu khi ng my

bm du chnh

- HL21: p lc bnh tch nng bnh thng, gi tn hiu dng my

bm du chnh v dng np kh

- HL22: p lc du bnh tch nng qu cao, gi tn hiu dng t

my

- HL23: Van cch ly ang m hon ton

- HL24: Van cch l ang ng hon ton

- HL25: Cht c kh ang ng

- HL26: Cht c kh ang m

- HL27: Van nc lm mt ang m

- HL28: Van nc lm mt ang ng

Kha iu khin v nt n

- SA1: Kha chn phng thc chuyn i my bm du

- SA2: Kha chn ch iu khin van x ti AA008 ca my

bm du AP001 (Manual/Auto/Disable)





- SA5: Kha chn ch iu khin van np kh AA054

(Manual/Auto/Disable)

- SA6: Kha chn ch iu khin van x kh AA055



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- SA7: Kha chn ch iu khin van cch ly AA082


- SA71: Kha iu khin ng/m bng tay van cch ly AA082

(Close/Open)

- SA8: Kha chn ch iu khin van cp nc lm mt AA064


- SA81: Kha iu khin ng/m bng tay van cp nc lm mt

AA064 (Close/Open)

- SB1: Nt n kim tra n hin th

2.5.3. T iu khin bm du 0*MEU GH003

n tn hiu v ng h hin th

- PA1: ng h o dng in ng c in my bm du AP002

- PA2: ng h o dng in ng c in my bm du AP003

- HL11: Bo my bm du AP001 ang lm vic

- HL12: Bo my bm du AP001 ang khng lm vic

- HL13: Bo li my bm du AP001







Kha iu khin

- SA1: Kha chn ch iu khin my bm du AP001

(Manual/Disable/Auto)

- SA11: Kha iu khin khi ng/dng bng tay my bm du

AP001




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AP002




AP003

QTVH HT Đi_u T_c Tua Bin (Đ_ Hi_u Ch_nh)

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