Turbine Prestartup Checklist

Solapur

O&M - OPERATION DEPARTMENT

TURBINE PRESTART UP CHECKLIST Sr. No.

Activity

Remarks

Status

1

Check That All Major Permits are cancelled & normalized.

Make a List of Pending Permits.

2

Check that SACW System is in Service.

Standby SACW pump is available in auto

3

Turbine Side IA/SA is charged.

Monitor IA and SA press.

4

Condensate pit is empty and dewatering pumps are available

Monitor condensate pit level

5

Check all important Oil Levels.

MOT/MDBFP/TDBFP/Seal Oil/ Control oil /TDBFP CRH oil tank/HPBP oil tank/ LP bypass oil Tank/ CEP thrust brg. oil level

6

All Important water levels normal

Hotwell/Deaerator/TG ECW tank levels/Stator water

7

Check That CW System is in Service and Charged up to CT. Standby CW pump is available

Monitor CW Sump level. CW overhead tank level, CW flow, number of CT fans in service

8

ACW System in Service with two PHE’s

ACW system FG is ON and healthy. Standby ACW pump available in auto

9

ACW self-cleaning strainers in auto

FG ON, Monitor SCS DP

10

TG ECW System in Service with two PHE’s

TGECW system FG on and healthy. Standby TGCW pump available in auto

11

HOTWELL is filled up to Normal Level. Normal makeup and Emergency makeup control station is available and in auto

DM Makeup and CST Pump Availability.DM and CST level OK.

12

Condensate system is charged through LP Heaters

13

Feedwater system is charged through HP heaters

Prepared By Pradeep Kayarkar Sr. Manager

Reviewed By

Approved By PAGE-1

Solapur

O&M - OPERATION DEPARTMENT

TURBINE PRESTART UP CHECKLIST 14

At least one CEP in service. All CEP parameters are healthy.

15

CPU in service after consultation from Chemist as per requirement

16

Chemical dosing system Ammonia and Hydrazine in service

Dosing valves to CPU outlet and BFP’s suction are lined up

17

Atmospheric flash tank and drain network service water is charged for cooling

Service water pneumatic valve are in auto

18

Auxiliary PRDS is charged. Pressure and temperature is maintained in auto.

Ensure Deaerator pegging

19

MOT lube oil, control oil, seal oil, stator Monitor lube oil, hydraulic oil, water, hydrogen gas coolers are charged from stator water, H2 cold gas, seal ECW cooling water. oil temp etc...

20

All TG equipment’s like CEP. MDBFP, TDBFP coolers are charged from ECW water.

Monitor lube oil, bearing temp. Temperature control is in auto

21

MDBFP is in service. All MDBFP parameters are healthy.

MDBFP FG is ON. MDBFP Scoop and FRS in auto

22

All BFP’s mechanical seal ammonia dosing system is healthy

Observe Seal water temp. Regularly

23

All BFP’s Boiler RH spray manual valves are kept opened

24

Generator Stator water system in service with Observe stator water FG ON and healthy with mixed bed ion parameters like tank level, exchanger in service conductivity and temp.

25

Generator Seal oil system in service. All Seal oil system FG ON and standby seal oil pumps and DC seal oil pump healthy are healthy

27

Main Turbine is on barring. Standby AOP and EOP healthy in auto.

Turning Gear FG is ON and healthy.

28

Main Turbine Hydraulic oil (control oil) pumps are in service

Hydraulic oil FG is ON and healthy

29

Generator Casing is filled with hydrogen with pressure above 4.7 Ksc and Purity above 98%

Monitor H2 pressure and Purity, Cold/ Hot gas temp

Prepared By Pradeep Kayarkar Sr. Manager

CEP FG is ON and other CEP’s are available in auto

Reviewed By

Approved By PAGE-2

Solapur

O&M - OPERATION DEPARTMENT

TURBINE PRESTART UP CHECKLIST 30

Main Turbine gland steam is charged and Condenser Vacuum is pulled. Condense Vacuum pump’s FG is ON

31

LP turbine gland steam temperature control valve in auto

32

TD BFP-A/B is on barring

TDBFP TSI healthy

33

Turbine Drains Operation Checked & all are Operative.

TG drains including MAL drains FG ON and healthy

34

All turbine extractions Forced Close NRV are All FCNRV’s instrument air healthy valve is opened at local

35

Main turbine & TDBFP Exhaust Hood Spray is lined up.

36

HPBP & LPBP Spray is lined up.

37

All heater Emergency drip & Normal Drip is Lined up.

38

Drip Pumps Availability Checked.

39

Turbine & Generator side all measuring instruments are OK. Turbine TSI and Casing – Shaft temperatures measurements are healthy

40

TDBFP warm up done and ready for rolling

41

SWAS parameters are available and within limits

Observe all chemical parameters

42

All-important control loops are in auto

Gland steam, H2 temp control, Hotwell level Control, DEA level control, TG ECW overhead tank level etc...

43

Turbine P&I Checks Completed

Protocol prepared and signed

44

Turbine resetted and drain between CV and Stop Valve of HPT/ IPT opened. Turbine MS HP/IP stress is within limits and HRH warm up drains are opened to increase MS and HRH temp at turbine inlet

45

Take Clearance from departments

Prepared By Pradeep Kayarkar Sr. Manager

One GSC VEF is in Service and Gland steam pressure control in auto.

Exhaust hood spray temp control valve in auto

All heaters levels to be monitored

Make a List of Bad measuring Instruments

TMD / Electrical / C&I

Reviewed By

Approved By PAGE-3

Solapur

O&M - OPERATION DEPARTMENT

TURBINE PRESTART UP CHECKLIST 46

Chemistry Department is informed for Main Turbine Rolling.

For Steam Sample/H2 purity and Dew point.

47

Turbine trip channel’s (Trip solenoid) healthiness to be checked after turbine reset

Overspeed, Overpressure, Hardware protection healthiness checked

Prepared By Pradeep Kayarkar Sr. Manager

Reviewed By

Approved By PAGE-4