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STARTING PROCEDURE FOR 45 MW STEAM TURBINE UTRAN CCPP

1. ESTABLISH ACW SYSTEM 2. RUN ONE COOLING WATER PUMP AND ESTABLISH THE SYSTEM 3. RUN THE OIL PUMPS OF STEAM TURBINE 4HRS. BEFORE STARTING THE UNIT AND CHECK FOR ANY OIL LEAKAGES AND ATTEND ACCORDINGLY. 4. RUN ONE OIL VAPOUR EXHAUSTER FAN. STA 5. CHECK THE INTERLOCK AND PROTECTIONS IN OIL SYSTEM IF THE UNIT WAS UNDER LONG S/D. 6. PUT THE MACHINE ON BARRING GEAR AT LEAST 4 HRS. BEFORE STARTING THE UNIT AND OBSERVE FOR ANY RUBBING NOISE S. OBSERVE TURBOVISORY READINGS IN CONTROL ROOM. SWITCH ON SGC OIL SUPPLY. 7. DRAIN WATER IN THE DEARETOR AND MAKE UP LEVEL WITH FRESH DM WATER. OBTAIN CHEMIST’S CLEARANCE. 8. CHECK THE OIL LEVEL IN BFP LUB OIL TANK AND MAKE UP IF REQUIRED. 9. RUN OIL PUMP OF THE BFP AND CHECK FOR ANY LEAKAGES AND ATTAND THE SAME IF ANY CHECK THAT OIL IS COMING OUT IN THE DRAIN LINE AS VIEWED FROM THE SIDE GLASS, PROVIDED IN THE DRAIN LINE. 10. CLEAN THE STRAINERS IN THE BFP SUCTION LINE IF DP WAS GREATER THAN 0.5 KG/SQCM BEFORE STARTING THE HP AND LP BFPs. 11. CHECK INTERLOCK AND PROTECTIONS OF BOILER FEED PUMPS IF IT WAS LONG S/D. CHECK SEQUENCE OPERATION. 12. CHARGE ALL BFPs BY OPENING THE SUCTION VALVE VENT UP TO THE DISCHARGE VALVE. 13. CHARGE THE SEALING AND COOLING WATER TO THE BFP GLANDS. ENSURE WATER IN THE RETURN LINE BY VIEWING THRU THE SIGHT GLASS. 14. START BOILER FEED PUMPS AND MAKE UP DRUM LEVEL BOTH HP AND LP DRUM LEVEL. 15. MONITOR THE BEARING TEMPERATURES OF THE BFP BEARING. 16. DRAIN WATER IN CONDENSER HOTWELL AND MAKE WITH FRESH DM WATER UNTIL CHEMIST GIVES CLEARANCE. 17. CHECK THE OIL LEVEL IN THE TRUST BEARING HOUSING OF CEPs AND THE THOROUGHNESS OF THE COOLING WATER CIRCUIT OF THE BEARING HSG. SEE WATER IN THE OUTLET OF THE COOLING CIRCUIT ALSO ENSURE THAT THE SEALING WATER CIRCUIT IS THROUGH WITH ALL THE VALVES LINED UP. 18. CHARGE WATER UP TO THE CEP DISCHARGE VALVE AND VENT THE CAN NISTER AND DISCHARGE LINE. 19. START CEP AND PUT ON RECIRCULATION. 20. CHECK ALL THE INTERLOCK AND PROTECTION OF CEP’S. 21. CHARGE THE CONDENSATE SYSTEM UP TO DEARATER. VENT ALL THE LINES AND ESTABLISH THE CONDENSATE SYSTEM. 22. TAKE GSC INTO SERVICE FROM CONDENSATE SIDE. 23. SWITCH ON THE SLC CONDENSATE PUMPS. 24. MAINTAIN HOTWELL LEVEL. PUT HOTWELL LEVEL ON AUTO. 25. ENSURE VACCUM BREAKER IS CLOSED AND SEALING WATER IS FILLED. 26. PULL VACUUM BY STARTING BOTH THE VACUUM PUMPS AND WHEN FULL VACUUM HAS REACHED STOP ONE VACUUM PUMP ENSURE THAT THE VACCUM PUMP SEPERATOR IS FILLED WITH DM WATER AND CONTINUOUS MAKE UP IS AVAILABLE TO MAINTAIN THE SEPERATOR LEVEL. 27. SWITCH ON SGB CONDENSATE ND EVACUATION. 28. OPEN ALL THE DRAINS TO THE TURBINE AND ALL THE LINE DRAINS IN THE HP AND LP STEAM LINES. 29. CHANGE THE HRSG’S BY OPENING THE DIVERTOR DAMPERS PARTIALLY TO BUILD UP A PRESSURE OF 30 KG /SQCM AND TEMPERATURE OF 360 DEG OF C IF THE MACHINE IS COLD AND 480 DEG C IF THE MACHINE IS HOT. 30. CHARGED FEED WATER HEATING STEM TO FST IMMEDIATELY AFTER CHARGING THE LP MS LINE. 31. CHARGE FEED WATER HEATING STEAM TO FST IMMEDIATELY AFTER CHARGING THE LP MS LINE. 32. AFTER FEED WATER TEMPERATURE HAS GONE UP TO 80 DEG C PEGGING STEAM MAY BE CHARGE TO DEARATER. 33. CHECK THE INTERLOCKS AND PROTECTIONS OF THE STEAM TURBINE. 34. OPEN BOILER STOP VALVES AND CHARGE THE HP AND LP STEAM LINES UPTO THE ELECTRICALLY OPERATED VALVES AND FOR WARMING UP THE STEAM LINES. 35. MAINTAIN BOTH HP AND LP DRUM LEVEL. 36. START THE GSC EXHAUSTER FAN AND PULL VACUUM IN GSC. 37. OPEN THE GLAND STEAM OUTLET VALVE TO GSC AND CLOSE THE CHIMNEY VALVES.

38. CHARGE GLAND STEAM TO THE TURBINE GLANDS AND CHECK FOR FULL VACUUM. (IF IT IS HOT / WARM START GSC FAN AND GLAND STEAM HAS TO BE CHARGED WHEN VACUUM IS 0.3 KG/SQCM.) BEFORE CHARGING GLAND STEAM TO THE GLAND WARM UP THE GS HEADER OPENING THE DRAINS. 39. PUT GLAND STEAM CONTROL ON AUTO MAINTAIN GLAND STEAM HEADER PRESSURE AT 0.1 KG/SQCM G. 40. OBTAIN CLEARANCE FROM C&I ENGINEER FOR READINESS OF ATRS PANEL. 41. CHARGE THE HP STEAM UP TO THE EMERGENCY STOP VALVE AND ALOW FOR WARMING UP FOR SOME TIME. 42. ENSURE THAT NO TRIP IS PERSISTING. 43. RESET THE TURBINE BY BRINGING THE STARTING DEVICE TO 0% AND PRESSING THE RESET SOLENOID. 44. WHEN OIL PRESSURE ABOVE PISTON OF ESV HAS BUILT UP, OPEN THE STOP VALVE BY RAISING THE STARTING DEVICE WARM UP THE TURBINE. 45. MAKE THE STARTING DEVICE GREATER THAN 60% NOTE THAT THE SPEED SHOULD NOT INCREASE. 46. OPEN THE CONTROL VALVE AND SPEED UP THE TURBINE UP TO 900 RPM, SOAK AT THAT SPEED UNTIL ALL THE METAL TEMPERATURE ARE STEADY. THIS HAS TO BE DONE BY BRINGING THE SPEED SET POINT TO 900 RPM. IF THE M/C IS COLD ON START THEN A MINIMUM OF 90 TO 120 MINUTES SOAKING IS REQUIRED. DURING SOAKING OBSERVE THE THERMAL EXPANSION AND TURBOVISORY READINGS ENSURE THAT BEFORE FURTHER RAISING THE SPEED, THE OVERALL EXPANSION SHOULD START RAISING. 47. RAISE THE STARTING DEVICE AND SPEEDER GEAR TO 100%. 48. SPEED UP THE TURBINE UP TO 3000 RPM WITHOUT STOPPING THE TURBINE IN BETWEEN (AVOID CRITICAL SPEED) . THIS HAS TO BE DONE BY RAISING THE SPEED SET POINT UP TO 3000 RPM WITHOUT A BREAK. DURING THIS PERIOD OBSERVE ALL THE TURBOVISORY READINGS. IN CASE THE M/C TRIPS DURING SPEEDING UP, IT MAY BE RESET AFTER PUTTING ON BARRING GEAR. 49. DURING SPEEDING UP MAINTAIN THE TEMPERATURE OF LUBE OIL INLET TO ALL THE BEARINGS MAINTAIN AT 42-44 DEG C. 50. SYNCHRONIZE AND LOAD THE TURBINE KEEPING AN EYE ON THE TURBOVISORY READINGS. AT ABOVE 10% LOADS LP STEAM MAY BE CHARGED. 51. ON SYNCHRONIZATION OPEN THE DIVERTOR DAMPER TO 100%. 52. AFTER SYNCHRONIZATION CLOSE ALL THE DRAINS.

53. MONITOR THE FOLLOWING PARAMETERS DURING RUNNING VIBRATIONS, BEARING TEMPERATURES, LUBE OIL TEMP, CASING EXPANSION , DIFFERENTIAL EXPANSION AXIAL SHIFT, EXHAUST TEMPERATURE VACUUM, ALL GENERATOR AND AVR PARAMETERS. 54. CHANGE OVER CONTROL FROM SPEED CONTROL TO VALVE LIFT REFERENCE BY SLOWLY RAISING THE VALVE LIFT REFERENCE AND OBSERVING THE VALVE LIFT REFERENCE ACTIVE LAMP. 55. AFTER THE UNTIL STABILIZES KEEP ALL AUTO LOOPS IN SERVICE ONE BY ONE. 56. START THE SECOND CW PUMP, CHECK SUMP LEVEL CONTROL IS ON AUTO. 57. AFTER THE SYSTEM STABILIZES CHANGE OVER FROM VALVE LIFT REFERENCE TO PRESSURE CONTROL. 58. SECOND BFP MAY BE STARTED AS PER THE LOADING OF THE TURBINE.

OTHER GENERAL POINS TO BE NOTED 1. KEEP WATCH ON MOT LEVEL. 2. RUN CENTRIFUGAL AT LEAST 2 HRS. EVERY DAY IN THE DAY SHIFT. 3. HP AND LP BYPASS PROVISION FOR HOT AND COLD START MAY BE MADE USE FOR WARMING UP. 4. ARRANGE BLOWN DOWN OF CW SYSTEM AS PER CHEMIST’S ADVICE. 5. MONITOR SWAS PARAMETERS AND OPERATE CBD AND CHEMICAL DOZING AS PER CHEMIST’S RECOMMENDATIONS. 6. CROSS CHECKS SWAS PARAMETERS WITH CHEMIST’S READINGS. 7. RUN DC EOP EVERY DAY AND OBSERVE LOADING IS OK A THERE IS A PRESSURE RAISE IN THE LUBE OIL PRESSURE. 8. IMPORTANT PARAMETERS TO BE NOTED,

IMPORTANT PARAMETERS ARE AS BELOW
PARAMETERS RATED VALUE
HP STEAM PRESS. :- 60-62 KG/SQCM
HP STEAM TEMP. :- 460-480 DEG C
LP STEAM PRESS. :- 4.5-5.0 KG/SQCM
LP STEAM TEMP. :- 150 DEG C
TOTAL STEAM FLOW :- AS PER LOAD
1ST STAGE PRESS. :- 53KG/SQCM
BRG. TEMP.:- ALRM 90 DEG C
SHAFT VIBRATIONS :- ALRM 90 MIC. (TUR) ALRM 169 MIC. (GEN)

BRG. VIBRATIONS :- ALRM 50 MIC.
DIFF. EXPANSION :- + 6 mm TO 3 mm.
CASING EXPANSION :- 16 mm.
AXIAL SHIFT :- + 0.5 mm TO -0.5 mm.
ECCENTRICITY :- 50 MIC.
GLAND STEAM PRESS. :- 0.1 KG /SQCM G.
GLAND STEAM TEMP. :- 120 DEG C
CEP DISCHARGE PRESS. :- 8 KG/SQCM
VACCUM :- -0.9 KG/SQCM G
EXHAUST STEAM TEMP. :- 45 TO 50 DEG C
LOAD :- 45 MW
CURRENT :-
VOLTAGE :- 10.5 KV
LUBE. OIL PRESS. :- 2.4 KG/SQCM
LUBE. OIL TEMP. :- 42 – 44 DEG C
CONDUCTIVITY OF CONDENSATE :- 1.5 MIC MHO/CM
CONDUCTIVITY OF FEED WATER :- 0.5 MIC MHO/CM
PH OF CONDENSATE :- 8.4
PH OF HP DRUM WATER :- 8.8 TO 9.2
PH OF LP DRUM WATER :- 10.0 TO 10.5
SILICA IN STEAM :- 0.02 PPM
SILICA IN HP BOILER WATER :- 8.00 PPM
SILICA IN LP BOILER WATER :- 25.00 PPM
CONDENSE DP CW SIDE :- 0.6 KG/SQCM

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...GENEROLO JONO ŽEMAIČIO LIETUVOS KARO AKADEMIJA Genovaitė LAUGALIENĖ Milda MIRONAITĖ MOKOMASIS ANGLŲ – LIETUVIŲ IR LIETUVIŲ – ANGLŲ KALBŲ KARYBOS ŽODYNAS Eksperimentinis leidinys Vilnius 2008 UDK 355(03)=20=882 La-458 Mokomąjį anglų – lietuvių ir lietuvių – anglų kalbų karybos žodyną parengė Generolo Jono Žemaičio Lietuvos karo akademijos Užsienio kalbų instituto direktorė Genovaitė Laugalienė ir Užsienio kalbų instituto Užsienio kalbų katedros lektorė Milda Mironaitė. Atsakingoji redaktorė Užsienio kalbų instituto Užsienio kalbų katedros lektorė Aušra Bučaitė. Recenzavo Generolo Jono Žemaičio Lietuvos karo akademijos viršininko pavaduotojas doc. dr. Pranas Jankauskas, Užsienio kalbų instituto Anglų kalbos mokymo centro viršininkas vyr. ltn. Andrius Kiesas ir Lietuvos kariuomenės Mokymo ir doktrinų valdybos Individualiojo rengimo skyriaus Anglų kalbos mokymo poskyrio vedėja Aušra Narbutienė. © Genovaitė Laugalienė, 2008 © Milda Mironaitė, 2008 © Generolo Jono Žemaičio Lietuvos karo akademija, 2008 Turinys Pratarmė......................................................................................................................... 4 . Angliški ir lietuviški sutrumpinimai ............................................................................ 5 Anglų – lietuvių kalbų karybos žodynas........................................................................ 7 Lietuvių – anglų kalbų karybos žodynas ....................................

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