TURBINE Logics and Interlocks

May 7, 2017 | Author: kalyanm203515 | Category: N/A

Short Description

150MW turbine logics and interlocks...

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW --------------------------------------------------------------

GREENESOL POWER SYSTEMS (P) LIMITED

PROJECT: M/S.MADHUCON-2X135MW THERMAL POWER PLANT (Phase-I)

TURBINE INTERLOCK & CLOSED LOOP WRITE UP

DOCUMENT NO: 1104-113

REV-0

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------INDEX

1) MOTORS 1. BOILER FEED WATER PUMP-1 2. VFC LUBE OIL PUMP-1 3. BOILER FEED WATER PUMP-2 4. VFC LUBE OIL PUMP-2 5. CONDENSATE EXTRACTION PUMP-1 6. CONDENSATE EXTRACTION PUMP-2 7. CCW PUMP-1 8. CCW PUMP-2 9. VACCUM PUMP MOTOR-1 & 2 10. HOT WATER PUMP-1 11. HOT WATER PUMP-2 12. CLEAN OIL PUMP 13. DIRTY OIL PUMP 14. GLAND STEAM VENT CONDENSER-1 15. GLAND STEAM VENT CONDENSER-2 16. BALL RECIRCULATION PUMP 17. PURIFICATION PUMP 18. OIL MIST FAN-1 19. OIL MIST FAN-2 20. EMERGENCY OIL PUMP(DC MOTOR) 21. OIL RESERVOIR HEATER 22. HP START UP OIL PUMP 23. AUXILIARY OIL PUMP 24. BARRING GEAR MOTOR 25. JACKING OIL PUMP-1 26. JACKING OIL PUMP-2 27. HP OIL PUMP-1 28. HP OIL PUMP-2

2) MOTORISED VALVES 1. HP SIDE MAIN STEAM BYPASS MOV-LIFT (1044) 2. HP SIDE MAIN STEAM BYPASS MOV –RIGHT (1045) 3. HP SIDE MAIN STEAM MOV – LEFT 4. HP SIDE MAIN STEAM MOV – RIGHT 5. START UP VENT HP SIDE 6. LP SIDE MAIN STEAM MOV– LEFT 7. LP SIDE MAIN STEAM MOV – RIGHT 8. START UP VENT HP SIDE 9. LP SIDE MAIN STEAM DRAIN-LEFT 10. LP SIDE MAIN STEAM DRAIN-RIGHT -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 2

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------11. 1ST BLEED MOV 12. 2ND BLEED MOV 13. 3RD BLEED MOV 14. 4TH BLEED MOV 15. BFP-1 DISCHARGE MOV BYPASS 16. BFP-2 DISCHARGE MOV BYPASS 17. HP HEATER-1 BYPASS MOV BYPASS 18. HP HEATER -1 I/L MOV BYPASS 19. HP HEATER-1 O/L MOV BYPASS 20. HP HEATER-2 BYPASS MOV BYPASS 21. HP HEATER-2 I/L MOV BYPASS 22. HP HEATER-2 O/L MOV BYPASS 23. HP SIDE MAIN STEAM – LEFT 24. HP SIDE MAIN STEAM – RIGHT 25. COLD RE HEATER HEADER DRAIN-1 26. COLD RE HEATER HEADER DRAIN-2 27. LP SIDE MAIN STEAM – LEFT 28. LP SIDE MAIN STEAM – RIGHT 29. 5TH BLEED MOV 30. LP HEATER-1 I/L MOV 31. LP HEATER-1 BYPASS MOV 32. LP HEATER-1 O/L MOV 33. LP HEATER-2 I/L MOV 34. LP HEATER-2 BYPASS MOV 35. LP HEATER-2 O/L MOV 36. LP HEATER-3 I/L MOV 37. LP HEATER-3 BYPASS MOV 38. LP HEATER-3 O/L MOV 39. BFP-1 DISCHARGE MOV 40. BFP-2 DISCHARGE MOV 41. HP HEATER-1 I/L MOV 42. HP HEATER-1 BYPASS MOV 43. HP HEATER-1 O/L MOV 44. HP HEATER-2 I/L MOV 45. HP HEATER-2 BYPASS MOV 46. HP HEATER-2 O/L MOV 47. BALL RECIRCULATION SECTION-1 48. BALL RECIRCULATION SECTION-2 49. BALL RECIRCULATION DISCHARGE-1 50. BALL RECIRCULATION DISCHARGE-2 51. VACCUM BREAKER 52. CEP-1 DISCHARGE MOV 53. CEP-2 DISCHARGE MOV 54. MAIN OIL TANK TO DIRTY OIL TANK 55. AUXILIARY STEAM LINE FROM PRDS

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------3) SOLENIDE VALVES 1. 2. 3. 4. 5. 6. 7. 8.

DRAIN SOLENOIDE VALVES: (DCV-01 to DCV-08) Spray water to Dump SOV TURBINE EXHAUST HOOD SPRAYING SYSTEM SOV DEAERATOR TO COMMON SURGE TANK SOV (LCV-909). BOP (20-1) SOV-230V AC BOP (20-2) SOV-230V AC EOP (20-1) SOV-230V AC EOP (20-2) SOV-230V AC

4) CONTROL VALVES 1. TEMPERATURE CONTROL IN GLAND SEALING LINE(TCV-905) 2. PRESSURE CONTROL IN CLAND SEALING LINE (PCV-901) 3. TEMPERATURE CONTROL IN PEGGING STEAM LINE (TCV-906) 4. PRESSURE CONTROL IN PEGGING STEAM LINE (PCV-902) 5. GLAND SEALING DRAIN TO LH-1 (FCV-000) 6. TEMPERATURE CONTROL IN AUXILLARY STEAM LINE (TCV-907) 7. PRESSURE CONTROL IN AUXILLARY STEAM LINE (PCV-903) 8. MINIMUM RECIRCULATION TO CONDENSER (FCV-941) 9. CONDENSER TO LP-1(LCV-907) 10.FROM EXPORT CONTROL VALVE TO SURGE TANK ) LCV-908) 11.SURGE TANK TO HOT WELL (LCV-907A) 12.CONDENSETE TO LP HEATER-2 (LCV-904) 13.LP HEATER-1 TO HOTWELL (LCV-904A) 14.LP HEATER-3 TO LP HEATER-2 (LCV-902) 15.LP HEATER-3 TO HOT WELL (LCV-902A) 16.LP HEATER-2 TO LP HEATER-1 (LCV-903) 17.LP HEATER-2 TO HOT WELL (LCV-903A) 18.HP HEATER-2 TO HP HEATER-1 (LCV-905A) 19.HP HEATER-2 TO HP FLASH TANK (LCV-905B) 20.HP HEATER-1 TO DEAERATOR (LCV-906) 21.HP HEATER-1 TO HP FLASH TANK (LCV-906A) 22.LUBE OIL PRESSURE REGULATOR (PRV-910)

5) Turbine Trips from DCS to ETS: 6) TURBINE ALARMS (SOE) in DCS:

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW --------------------------------------------------------------

7) OPEN LOOPS 8) PERFORMANCE CALCULATION 9) DEH LOGICS 10) EMERGENCY TRIP SYSTEM (ETS)

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW --------------------------------------------------------------

FUNCTIONAL WRITE UP BOILER FEED WATER PUMP - 1 BFP #1 shall be switched on manually after switching on Aux. Lube oil pump in auto/Manual: Start Permissive (VFC Aux. lube oil pump #1) 1. Lube oil temp. Downstream of heat exchanger not high. a. TE-27A (95 deg.) 9) Any VFC lube Oil Temperature are high high a. TE-27.1A& 27.2A (60 Deg.) b. TE-29.1A&29.2A (70Deg.) c. TE-33.1A&33.2A (130Deg.) d. TE-35.1A & 35.2A (85Deg.) 10) Lube Oil Pressure (PT-19.1A) is less than 0.8bars. 11) Stop from DCS when in remote mode. -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 7

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------12) Trip from HT breaker. 13) CCW discharge pressure (PT-982) 90 Deg. Trip FB from VFD Stop from DCS

Refer Interlock Logic Diagram: 1104-113-A-05.

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW --------------------------------------------------------------

CONDENSATE EXTRACTION PUMP -2 Condensate Extraction Pump-2 shall be switched on from DCS either in Manual mode or Auto mode, which can be selected by using soft selector switch. Starting Per missives (CEP#2) 1. Hot well level (LALL-912) not low low. 1. Condensate Extraction Pump-1 Suction Valve (ZSO-904) is in open position. 2. CEP Pump-2 in remote (DCS) mode. 3. CEP Pump-2 not in trip condition from VFD. 4. Ready to start permissive from VFD. 5. Local stop not active. 6. Discharge MOV (1024) in close FB. If start per missives Ok. Manual Start mode 1. Start from DCS Auto Start mode 1. CEP-1 trip FB from VFD. 2. Discharge header pressure low(PS-941) 3. Hot well level high (LAH-912) Stop Interlocks (CEP-2) 1) 2) 3) 4) 5)

Hot well level (LALL-912) low low. CEP #2 Motor any Winding (R, Y and B) temperature>120 Deg. CEP #2 Motor any Bearing (NDE and DE) temperatures>90 Deg. Trip FB from VFD Stop from DCS

Refer Interlock Logic Diagram: 1104-113-A-06.

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW --------------------------------------------------------------

CCW PUMP -1 CCW Pump-1 shall be switched on from DCS either in Manual mode. Starting Per missives (CCWP#1)-Manual mode 1. 2. 3. 4. 5.

Common surge tank level (LT-901A) not low (>25%). CCW Pump-1 in remote (DCS) mode. CCW Pump-1 not in trip condition from HT Breaker. Ready to start from HT breaker. Local stop not active.

If start per missives OK. Manual Start 1. Start from DCS. Stop Interlocks (CCWP-1)-Manual Mode 1. Common surge tank level (LT-901A) low (120 Deg. 3. CCWP#1 Motor any Bearing (NDE and DE) temperatures>90 Deg. 4. Trip FB from HT breaker. 5. Stop form DCS. Refer Interlock Logic Diagram: 1104-113-A-07.

CCW PUMP -2 CCW Pump-2 shall be switched on from DCS either in Manual mode. Starting Per missives (CCWP#2)-Manual mode 1. 2. 3. 4. 5.

Common surge tank level (LT-901A) not low (>25%). CCW Pump-2 in remote (DCS) mode. CCW Pump-2 not in trip condition from HT Breaker. Ready to start from HT breaker. Local stop not active.

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GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------If start per missives are OK. Manual Mode 1. Start from DCS. Stop Interlocks (CCWP-2)-Manual Mode 1. Common surge tank level (LT-901A) low (120 Deg. 3. CCWP#2 Motor any Bearing (NDE and DE) temperatures>90 Deg. 4. Trip FB from HT breaker. 5. Stop form DCS.

Refer Interlock Logic Diagram: 1104-113-A-O8. VACCUM PUMP MOTOR-1& 2 and Recirculation Motor 1&2: Please refer document Edwards contract no: NXP518000&NXP519000.

HOT WATER PUMP -1 Hot water Pump-1 shall be switched on from DCS either in Manual mode or Auto mode, which can be selected by using soft selector switch. Starting Per missives (HWP#1) 1. LP Heater-1 level (LAL-906) not low low. 2. HW Pump-1 in remote (DCS) mode. 3. HWP Pump-1 not in trip condition from MCC. 4. Ready to start permissive from MCC. 5. Local stop not active. If starting per missives are OK Manual Start mode 1. Start from DCS -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 14

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------Auto Start mode 1. HWP-2 trip FB from MCC. 2. LP Heater level-1 high (LAH-907) Stop Interlocks (HWP-1) 1. LP Heater-1 level (LAL-906) low low. 2. Trip FB from MCC 3. Stop from DCS Refer Interlock Logic Diagram: 1104-113-A-09.

HOT WATER PUMP -2 Hot water Pump-2 shall be switched on from DCS either in Manual mode or Auto mode, which can be selected by using soft selector switch. Starting Per missives (HWP#2) 1. 2. 3. 4. 5.

LP Heater-1 level (LAL-906) not low low. HW Pump-2 in remote (DCS) mode. HWP Pump-2 not in trip condition from MCC. Ready to start permissive from MCC. Local stop not active.

If starting per missives are OK Manual Start mode 1. Start from DCS Auto Start mode 1. HWP-1 trip FB from MCC. 2. LP Heater level-1 high (LAH-907) Stop Interlocks (HWP-2) 1. LP Heater-1 level (LAL-906) low low. 2. Trip FB from MCC 3. Stop from DCS Refer Interlock Logic Diagram: 1104-113-A-10.

CLEAN OIL PUMP -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 15

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------COP shall be switched on manually, only when the following Conditions are satisfied: Starting Per missives (COP)-Manual mode 1) 2) 3) 4) 5)

Cleaning oil tank level (LAL-901A) not low. COP in remote mode. COP not in trip condition. Ready to start from MCC. Local stop not active.

If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (COP) 1) 2) 3) 4)

Cleaning oil tank level (LAL-901A) is low. Unit-1 Main oil tank level high(LTI-133) Unit-2 Main oil tank level high(LTI-133) Stop from DCS.

Refer Interlock Logic Diagram: 1104-113-A-11.

DIRTY OIL PUMP DOP shall be switched on manually, only when the following Conditions are satisfied: Starting Per missives (DOP)-Manual mode 1. 2. 3) 4) 5)

Dirty oil tank level (LAL-901) not low. DOP in remote mode. DOP not in trip condition. Ready to start from MCC. Local stop not active.

If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (DOP) 1. Dirty oil tank level (LAL-901) is low. 2. Unit-1 Main oil tank level high(LTI-133) -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 16

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------3. Unit-2 Main oil tank level high(LTI-133) 4. Stop from DCS. Refer Interlock Logic Diagram: 1104-113-A-12.

Gland steam vents condenser FAN-1: GSVC-1 shall be switched on manually, only when the following Conditions are satisfied: Starting Per missives (GSVC-1)-Manual mode 1. 2. 3. 4.

GSVC-1 in remote mode. GSVC-1 not in trip condition. Ready to start from MCC. Local stop not active.

If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (GSVC-1) 1. GSVC-1 stop from DCS. Refer Interlock Logic Diagram: 1104-113-A-13.

Gland steam vents condenser FAN-2: GSVC-2 shall be switched on manually, only when the following Conditions are satisfied: Starting Per missives (GSVC-2)-Manual mode 1. 2. 3. 4.

GSVC-2 in remote mode. GSVC-2 not in trip condition. Ready to start from MCC. Local stop not active.

If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (GSVC-2) 1. GSVC-2 stop from DCS. Refer Interlock Logic Diagram: 1104-113-A-14. -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 17

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------Ball Recirculation Pump: This motor is PLC based controlled not from DCS. Purification Pump: This motor is PLC based controlled not from DCS. Oil mist FAN-1: OMF-1 shall be switched on manually, only when the following Conditions are satisfied: Starting Per missives (OMF-1)-Manual mode 1. 2. 3. 4.

OMF-1 in remote mode. OMF-1 not in trip condition. Ready to start from MCC. Local stop not active.

If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (OMF-1) 1. OMF-1 stop from DCS. Refer Interlock Logic Diagram: 1104-113-A-15. Oil mist FAN-2: OMF-2 shall be switched on manually, only when the following Conditions are satisfied: Starting Per missives (OMF-2)-Manual mode 1. 2. 3. 4.

OMF-2 in remote mode. OMF-2 not in trip condition. Ready to start from MCC. Local stop not active.

If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (OMF-2) 1. OMF-2 stop from DCS. -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 18

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------Refer Interlock Logic Diagram: 1104-113-A-16.

EMERGENCY OIL PUMP (DC MOTOR) Starting Per missives (EOP)-Auto mode 1. EOP DC Supply ON. 2. FFR NOT OPERATED. 3. Local stop not active. 4. Ready to start from EOP panel If starting per missives are OK Manual Mode 1) Start from DCS. Auto Mode 1. EOP inlet Lube Oil Pressure (PS-63/1-EOP) is low. OR 2. EOP inlet Lube Oil Pressure (PS-23/2-EOP) is low. Stop Interlocks (EOP) 1. Stop from DCS. Refer Interlock Logic Diagram: 1104-113-A-17. OIL RESERVOIR HEATER Oil reservoir heater shall be switched on from DCS either in Manual mode or Auto mode, which can be selected by using soft selector switch. Starting Per missives (ORH): 1. Ready to start permissive from MCC. 2. Local stop not active. Manual Start mode 1. Start from DCS Auto Start mode 1. ORH no trip condition from MCC. 2. Lube oil temperature (TE-22) 28Deg. 2. Trip FB from MCC 3. Stop from DCS Refer Interlock Logic Diagram: 1104-113-A-18.

HP START UP OIL PUMP SOP shall be started in Manual mode, When SOP shall Be selected in remote mode of operation. Local / remote selection Shall be from DCS only. Starting Per missives (HP SOP)-Manual mode 1. Ready to start from DCS 2. Local stop not active. If starting per missives are OK Manual Mode 1) Start from DCS. Stop Interlocks (HP SOP) 1. Stop from DCS 2. Trip FB from MCC 3. Turbine reaches rated RPM (3000 RPM) with delay of 3S time. Refer Interlock Logic Diagram: 1104-113-A-19.

AUXILARY OIL PUMP AOP shall be started in Auto/Manual mode, When AOP shall Be selected in remote mode of operation. Local / remote selection Shall be from DCS only. Starting Permissive (AOP)1. Ready to start from DCS 2. Local stop not active. If starting pre missives are OK Manual Start mode -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 20

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------1. Start from DCS. Auto Start mode 1. AOP Lube Oil Pressure (PS-63/1 BOP) is low. OR 2. AOP Lube Oil Pressure (PS-63/2 BOP) is low. NOTE: AOP forcedly shall made select to auto mode when turbine trips. Stop Interlocks (AOP) 1. Stop from DCS 2. Trip FB from MCC Refer Interlock Logic Diagram: 1104-113-A-20.

BARRING GEAR MOTOR

BGM shall be started in Manual mode, When BGM shall Be selected in remote mode of operation from BGM panel. BGM shall be switched on manually, only when the following Conditions are satisfied: Starting Permissive (BGM)-Manual mode 1. Lube Oil Header Pressure switch (PIS-317) is not low. 2. Turbine Speed Zero (from TSI panel). If starting per missives are OK Manual Mode 1. Start from DCS. Stop Interlocks (AOP) 1. Lube Oil Header Pressure Switch (PIS-317) is low. 2. Stop from DCS. Refer Interlock Logic Diagram: 1104-113-A-21.

JACKING OIL PUMP-1 JOP #1 shall be started in Auto/Manual mode. -------------------------------------------------------------TURBINE INTERLOCK WRITE UP 21

GREENESOL POWER SYSTEMS PVT.LIMITED PROJECT: M/S.MADHUCON-2X135MW -------------------------------------------------------------Starting Permissive (JOP-1)1. Lube oil header pressure (PT-128)>0.9 kg/cm2. Manual mode 1. Start from DCS. Auto mode 1) Jacking Oil Device Pressure (PS-505) is Low. 2) Jack Oil Pump-2 Stop. 3) Turbine speed0.9 kg/cm2. Manual mode 1. Start from DCS Auto mode 1. Jacking Oil Device Pressure (PS-505) is Low. 2. Jack Oil Pump-1 Stop. 3. Turbine speed

TURBINE Logics and Interlocks

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