Training Manual

TATA POWER COMPANY TATA POWER COMPANY LIMITEDLIMITEDJAMSHEDPUR - DIVISIONJAMSHEDPUR - DIVISION

WELCOME

PRESENTATION ON

TURBINE SAFE STARTING

PROCEDURE

TURBINE START UP TURBINE START UP PROCEDUREPROCEDURECHECK LISTCHECK LIST

BEFORE STARTING FOLLOWING ACTIVITIES TO BE COMPLETED

A) CONDENSER CW CHARGEDB) TG OIL SYSTEM CHARGED & TURBINE ON TURNING GEARC) MAIN STEAM LINE CHARGEDD) APRDS CHARGED & HEATING IS GOING ONE) CONDENSATE LINE CHARGEDF) ALL DRAINS ARE OPENEDG) ALL MAL DRAINS ARE OPENEDH) CONTROL OIL PUMP RUNNING & PRESS NORMAL

TURBINE START UP TURBINE START UP PROCEDUREPROCEDURECHECK LISTCHECK LIST

I) CHECK SLC OF HPSV & IPSV -1 & 2 ARE ONJ) CHECK SLC OF HPCV & IPCV -1 & 2 ARE ONK) CHECK MANUAL SET POINT CONTROLLER OF HPCV & IPCV - 1 & 2 ARE 100% OPEN

L) TSE INFLUENCE ONM) LOAD GRADIENT ON & LOAD GRADIENT MAINTAINED 3.0 MW PER MIN

N) PRESSURE ON LIMIT CONTROLO) CMC OFF

COLD START UPCOLD START UPNo-1 ACTIVITY- GLAND STEAM CHARGINGNo-1 ACTIVITY- GLAND STEAM CHARGING

20,180 200,180

300,260

300,350

140,28020,280

Mean HP Shaft Temp

Temp Bef GSCV

600300200

600

300

200

COLD START UPCOLD START UPGLAND STEAM CHARGINGGLAND STEAM CHARGING

SATISFIED THE ABOVE CONDITION

( VACUUM BREAKER ALREADY CLOSED )VACUUM PUMP STARTEDGLAND STEAM CHARGED & GSVEF STARTEDVACUUM PULLING STARTED

VACUUM RAISED > 0.85 KG/SQ.CM

COLD START UPCOLD START UPNO -2 ACTIVITIES- HPBP & LPBP CHARGINGNO -2 ACTIVITIES- HPBP & LPBP CHARGING

• RESET HPBP & LPBP OPEN WARM UP LINE & WARM UP DRAIN• OPEN BP VALVE SLOWLY & BPE ON AUTO• KEEP LPBP FLOW LIM REF > 12 KG/SQ.CM• KEEP LPBP FIXED SET POINT 3.0 KG/SQ.CM• CHECK OPENING OF LPCV• CHECK WATER INJ FLOW CONTROL VALVE

( IF IT IS WORKING IN AUTO THEN KEEP INAUTO OTHERWISE INJ CONTROL VALVETO BE KEPT IN MANUAL AT > 50% OR FLOW > 15 KG/SEC )

COLD START UPCOLD START UPTRIPPING CONDITION OF HPBP & LPBPTRIPPING CONDITION OF HPBP & LPBP

HPBP• VACUUM PROTECTION ( <=0.7 KG/SQ.CM )• DOWN STREAM TEMP V. HIGH ( >=380 deg C )• LOSS OF OIL SUPPLY UNIT

LPBP

• VACUUM PROTECTION ( <= 0.5 KG/SQ.CM )• WATER INJ. FLOW PROTECTION ( DEV > 9.6%)• LOSS OF CONTROL OIL• OPERATION OF TRIP PUSH BUTTON

COLD START UPCOLD START UPNO-3 ACTIVITIES- HP CASING DIFF TEMP NO-3 ACTIVITIES- HP CASING DIFF TEMP SATISFYING SATISFYING

-50

3020

0

-40

0 40 125

MW

HP TOP-BOT

DIFF TEMP

COLD START UPCOLD START UPN0-3 ACTIVITIES- HP CASING DIFF TEMP ( TOP- N0-3 ACTIVITIES- HP CASING DIFF TEMP ( TOP- BOTTOM ) BOTTOM )

BEFORE SATISFYING ANY CRITERIA THISCONDITION TO BE SATISFIED

CONDITION IN RED ZONE WILL TRIP TURBINE

IF DIFF TEMP > ‘+30 deg C THEN RAISE APRDSTEMP & IF DIFF TEMP < ‘-50 deg C THEN LOWERAPRDS TEMP

COLD START UPCOLD START UPN0-4 ACTIVITIES - CRITERIA 1,2 & 3 SATISFYINGN0-4 ACTIVITIES - CRITERIA 1,2 & 3 SATISFYING

• STEAM DUMPING IS GOING ON & MS PRESSUREMAINTENED 30-40 KG/SQ.CM & TEMP =< 350 deg C

• HRH PRESSURE MAINTENED 3-8 KG/SQ.CM &TEMP =< 350 degC

• CRITERIA 1,2 & 3 SATISFIED

• CLOSE MAL VALVE 11 & 12

• OPEN ESV BY RAISING STARTING DEVICE UP TO 42%

• OPEN MAL VALVE 11 &12

COLD START UPCOLD START UPCRITERIA - X 1 & X 2 ( BEFORE OPENING ESV )CRITERIA - X 1 & X 2 ( BEFORE OPENING ESV )

CRITERIA-X 1 CRITERIA-X 2

0 600

600

300 0 600300

300 300

600

(0,100)

(600,550)CRITERION FULFILLED

(0,165)

(320,374)

CRITERION FULFILLED

MSTEMPBEFHPBP

SATTEMPBEFHPBP

Tm HP CV Tm HP CV

BEFORE OPENING ESV

COLD START UPCOLD START UPCRITERIA - X 3 ( BEFORE OPENING ESV )CRITERIA - X 3 ( BEFORE OPENING ESV )

CRITERIA - X3

0 300

300

600

600MSTEMPBEFHPBP

(0,100)

(600,550)CRITERIONFULFILLED

BEFORE OPENING ESV

Tm STRNR

COLD START UPCOLD START UPNO-5 ACTIVITIES - CRITERIA 4,5 & 6 SATISFYINGNO-5 ACTIVITIES - CRITERIA 4,5 & 6 SATISFYING

AFTER SATISFYING CRITERIA 4,5 & 6, RAISE STARTING DEVICE UP TO 70%INCREASE SPEED REFERENCE TO 690 RPM & CHECK THE ACTUAL RPM

NOTE THE TURBO SUPERVISORY PARAMETERSARE WITHIN LIMITMAINTAIN MS & HRH TEMPERATURE WITHIN370 deg C, OTHERWISE TURBINE MAY TRIP ONHIGH MS TEMP w.r.t HP SHAFT MEAN TEMP ORHIGH HRH TEMP w.r.t IP SHAFT MEAN TEMP

TO AVOID THIS REDUCE MS & HRH PRESSURE

COLD START UPCOLD START UPCRITERIA - X 4 & X 5 ( BEFORE OPENING MCV )CRITERIA - X 4 & X 5 ( BEFORE OPENING MCV )

0

300

600

300 600 0 300

300

600

600

(374,430)

CRITERIONFULFILLED (250,374)

(450,540) (540,540)

CRITERION FULFILLED

MSTEMPBEFESV

MSTEMPBEFHPBP

MS SAT TEMP BEF HPBP Tm HP SHAFT

CRITERIA - X 4 CRITERIA - X 5

BEFORE OPENING MCV

COLD START UPCOLD START UPCRITERIA - X 6 ( BEFORE OPENING MCV )CRITERIA - X 6 ( BEFORE OPENING MCV )

CRITERIA - X 6

0

300

300 600

600HRHTEMPBEFLPBP

Tm IP SHAFT TEMP

BEFORE OPENING MCV

(0,100)

(440,490)

CRITERIONFULFILLED

COLD START UPCOLD START UPSTEAM TEMP VS HP SHAFT & IP SHAFT TEMPSTEAM TEMP VS HP SHAFT & IP SHAFT TEMP

0600

300

300

600

0

300

300

600

600

MS

TEMP

HRH TEMP

(100,370)

(295,565)

(100,370)

(295,565)

Tm HP SHAFT Tm IP SHAFT

COLD START UPCOLD START UPNO-6 ACTIVITIES - CRITERIA 7 ( FULL SPEED )NO-6 ACTIVITIES - CRITERIA 7 ( FULL SPEED )

AFTER SATISFYING CRITERIA 7, INCREASE MSPRESSURE & MAINTAIN HPBP FLOW >70 TPH HRHPRESSURE ALSO TO BE INCREASED TO 8.0 KG/SQ.CM

CHECK HP SHAFT SURFACE & MEAN TEMP DIFFIS LESS THAN 10.0 deg C

INCREASE SPEED REFERENCE UPTO 3000 RPM ATA STRETCH OTHERWISE Dn/Dt WILL OPERATE

MONITOR TURBO SUPERVISORY PARAMETER

CHECK HP SHAFT MEAN TEMP, HP EXH TEMP &OUTER CASING FLANGE TEMP

COLD START UPCOLD START UPN0-8 ACTIVITIES - CRITERIA 8 ( SYNCHRONISE )N0-8 ACTIVITIES - CRITERIA 8 ( SYNCHRONISE )

MS PRESSURE & TEMP INCREASED EARLIER ORMAY BE INCREASED IN THIS STEP DEPENDINGON HP SHAFT SURFACE & MEAN DIFFERINTIALTEMP

AVR MADE ON & VOLTAGE BUILT UP BY ELECTRICAL

LOAD REF KEPT AT 15 MW & LOAD LIMITER KEPTAT 40 MWSYNCHRONIZER PUT ON AUTO

AFTER SYNCHRONIZING PUT LOAD ON LOADCONTROL

COLD START UPCOLD START UPNO-8 ACTIVITIES - LOADNO-8 ACTIVITIES - LOAD

CHECK HP SHAFT MEAN TEMP, HP EXH TEMP &OUTER CASING FLANGE TEMP. THERE MAY BE ACHANCE OF TRIPPING ON HP EXH. TEMP HIGH w.r.tOUTER CASING FLANGE TEMP

IF THIS CONDITION ARISES REDUCE HRH PRESSBY MANUAL OPENING OF LPBP & INCREASE LOAD

COLD START UPCOLD START UPHP EXH TEMP VS Tm HP SHAFT / OUTER CASING HP EXH TEMP VS Tm HP SHAFT / OUTER CASING FLANGE TEMPFLANGE TEMP

0 100 200 300 0 100 200 300

200

400

600

200

400

600

(100,380)

(250,480)

(60,380) (150,380)

(60,400)

(200,480)

HP

EXH

TEMP

HP

EXH

TEMP

OUTER CASING FLANGE TEMPTm HP SHAFT TEMP

STARTING DEVICE STARTING DEVICE CHARACTERISTICSCHARACTERISTICS

0 TURBINE TRIP7.5 TSLLE RESET12 TURBINE TRIP RESET22 ALL ESV TRIP SOLENOID ENERGISED32 ALL CV TRIP SOLENOID ENERGISED42 ALL ESV OPEN50 START TO INCREASE CONTROLLER O/P55.5 CONTROLLER O/P 15%, HPCV-5% & IPCV-1%58 CONTROLLER O/P 22%, HPCV-5% & IPCV-5%,

CRH NRV OPEN61 CONTROLLER O/P 30%, HPCV-10% & IPCV-10%

STARTING DEVICE STARTING DEVICE CHARACTERISTICSCHARACTERISTICS

64 CONTROLLER O/P 40%, HPCV-12% & IPCV-16%69 CONTROLLER O/P 50%, HPCV-15% & IPCV-28%72 CONTROLLER O/P 60%, HPCV-19% & IPCV-99%76 CONTROLLER O/P 70%, HPCV-24% & IPCV-100%80 CONTROLLER O/P 80%, HPCV-28% & IPCV-100%84 CONTROLLER O/P 90%, HPCV-39% & IPCV-100%85 CONTROLLER O/P 95%, HPCV-56% & IPCV-100%88 CONTROLLER O/P 100%,, HPCV-99% & IPCV-100%AT CONTROLLER O/P 17%, CRH NRV CLOSED

TURBINE START UPTURBINE START UPALARM & TRIP VALUE OF TURBINE PROTECTIONALARM & TRIP VALUE OF TURBINE PROTECTION

DESCRIPTION ALARM TRIP RELEASE

1. LUBE OIL PRESS V. LOW < 3.4 KG/CM2 < 3.2 KG/CM2

2. LUBE OIL LEVEL V.LOW 440 MM FROM 490 MM FROMTOP YOP

3. MS TEMP V.LOW 330 deg C 320 deg C TEMP < 500

< 480 deg C < 450 deg C TEMP > 500

4. MS TEMP V. HIGH 545 deg C 565 deg C REF TmHPS

5. IP I/L TEMP V. LOW 330 deg C 320 deG C SPEED>1980RPM

445 deg C 430 deg C LOAD > 25%37 MW

6. IP I/L TEMP V. HIGH 545 deg C 565 deg C REF TmIPS



7. LP EXH TEMP V. HIGH 90 deg C 110 deg C

8. HP CASING DIFF. TEMP REF CURVE V. HIGH9. COND PRESS V. HIGH REF CURVE

10. HP EXH TEMP V. HIGH 470 deg C 480 deg C BASED ON CAS. FLANGE

11. AXIAL SHIFT V. HIGH +/- 0.5 MM +/- 1.0 MM

12. HP/IP FJB VIB. V. HIGH 165 micron

13. HP/IP RJB VIB. V. HIGH 165 micron

14. LP REAR VIB. V. HIGH 160 micron


DESCRIPTION ALARM TRIP RELEASE15. GEN FJB VIB. V. HIGH 165 micron

16. GEN FJB VIB. V. HIGH 165 micron

17. HP TUR. EXH. TEMP V. 470 deg C 480 deg C HIGH18. DRUM LEVEL V. HIGH 375 MM

19. TURBINE OVERSPEED 55 HZ (3300 RPM )

20. GEN. PROTECTION

21. BOILER PROTECTION

22. EMERGENCY TRIP

23. TURBINE TRIP FROM ATRS SGC TURBINE



24. FIRE PROTECTION ACTIVATED PB

25. CONTROL OIL EMERGENCY TRIP

26. CONTROL OIL SUPPLY PROT. OFF

27. TSLLE < 7.5%

HOT START UPHOT START UP CHECK LISTCHECK LIST

BEFORE STARTING FOLLOWING ACTIVITIES TO BE COMPLETED

A) CONDENSER CW CHARGEDB) TG OIL SYSTEM CHARGED & TURBINE ON TURNING GEARC) MAIN STEAM LINE CHARGEDD) APRDS CHARGED & HEATING IS GOING ONE) CONDENSATE LINE CHARGEDF) ALL DRAINS ARE OPENEDG) ALL MAL DRAINS ARE OPENEDH) CONTROL OIL PUMP RUNNING & PRESS NORMAL


I) CHECK SLC OF HPSV & IPSV -1 & 2 ARE ONJ) CHECK SLC OF HPCV & IPCV -1 & 2 ARE ONK) CHECK MANUAL SET POINT CONTROLLER OF HPCV & IPCV - 1 & 2 ARE 100% OPEN

L) TSE INFLUENCE ONM) LOAD GRADIENT ON & LOAD GRADIENT MAINTAINED 3.0 MW PER MIN

N) PRESSURE ON LIMIT CONTROLO) CMC OFF


BETTER TO START WITH MILL-C OR MILL-D

GLAND STEAM ALREADY CHARGED

VACUUM MAINTAINED

MS PRESSURE TO BE MAINTAINED > 60.0 KG/CM2 &TEMP MAINTAINED > 460 deg C

HRH PRESS TO BE MAINTAINED 6-8 KG/CM2 & TEMPMAINTAINED > 460 deg C

HOT START UPHOT START UP CRITERIA - X1 , X2 & X3 AND X4 , X5 & X6CRITERIA - X1 , X2 & X3 AND X4 , X5 & X6

AFTER FULFILLMENT OF CRITERIA X1 , X2 & X3OPEN ESV

AFTER FULFILLMENT OF CRITERIA X4 , X5 & X6GIVE TURBINE ON SOAKING SPEED. MAITAIN FOR15 MINS.

IF HP SHAFT SURFACE & MEAN TEMP DIFF < 10 deg CROLL THE TURBINE TO FULL SPEED

SYNCHRONISED M/C AS IN COLD START

TATA POWER COMPANY TATA POWER COMPANY LIMITEDLIMITEDJAMSHEDPUR - DIVISIONJAMSHEDPUR - DIVISION

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Training Manual

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