Tuesday, December 31, 2019

Check List (Light-Up)



Unit:
Date:
S.No
Activity
Status
Remark
1
Drum Level, RH Protection Bypass


2
Seal Trough charged & Bottom Hopper filled


3
ESP field Ready & Off


4
SADC In auto


5
LPD close, Drum SH Vents Open, SH drains Open, Eco-Recirculation Open


6
APH blowing Lined-up


7
All 3 BCW Running


8
CBD Manual Open, EBD Auto close Bypass


9
LP dosing & Both CPU i/s


10
FG & Air path OK/ PAPH-A/B FG outlet Damper closed


11
All Mills & Feeders Ready


12
Hotwell & Deaerator Normal


13
SH/RH/HPBP spray Manual closed(Turbine Side)


14
MAL Drains/SDFT/UFT Manual Open


15
MS/HRH strainers drain to UFT,SDFT Open


16
Vacuum Pulled,TDBFPs on Barring/Rolled upto 1000 rpm through PRDS


A
Light-UP


1
Note Boiler Light-up Time ( 1st gun I/s)

Time of BLU:
2
Feed Drum through 30% line by TDBFP(Maintain DP>10 ksc) Or MDBFP


3
Close Drum/SH Vents at 2 ksc Drum Pressure


4
BSV Open at 5ksc Drum Pressure


5
HPBP/LPBP Open at 8 ksc Drum Pressure


6
Start-up vents Close after HPBP/LPBP Charging


7
Close SH Drains at 10 ksc Drum Pressure


B
Before Rolling

Time Before rolling:
1
Before PA Fan start,Open 2 Mills CAG/CAD, start PA Fan,Open PAPH FG o/l


2
Ensure only one Seal air Fan Running


3
One Mill A/C to be taken i/s as per HP Casing Metal Temp


4
Bring Rolling Parameter, Note Time Before rolling


5
Turbine EHTC Normal from Local


6
HP ESV/IV/CV /CRH gagging Removed


7
Decrease TG LO SP to 45 Deg


8
Turbine LP Mode, Load Ref 50 MW, Pr Max 75 MW, Th Pr SP=30 Ksc


C
Before Synchronization


1
GT Isolators from s/Y Closed


2
GRP relays Reset


3
One Mill i/s and Other Warmed-up(Hot Air charged)


4
HPBP spray Manual Open when Downstream Temp crosses 330 Deg


D
After Synchronization

Time Of sync:
1
SH/RH sprays from turbine Side Normalized. Monitor MS/HRH Temp


2
PW/CG Controller on auto


3
LPH/Deaerator charged


4
MAL/SDFT/UFT Manual drains closed


5
ST/UT Change-over at 100 MW


6
FRS High Range at 180 MW from 30 % line change-Over


7
Oil guns taken out (>5 Mills i/s: scanner Healthy), Note time of Oil w/d


8
ESP field charging after Oil guns taken out


9
Boiler silica to be monitored Before Load Increase





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