Flow Chart for Cold Start Up for LMW Turbine

Start 2nd draught set. Control the firing rate to keep the steam parameter under controlKeep the boiler ready so that the bottom most mill can be put in to service just after synchronisation

Open HP/LP bypass drains

Charge Bypass at 550mm Hg vacuum

SYNCHRONISATION

Charge TAS from common header

Close RH vent & start Vacuum Pulling

LITUP

OR

Start Cylinder & then Loop Heating

Check no water at MS atmos drain. Charge MS 2 or SHH 7

Roll to 3000rpm. Check all parameters. Back charge coolersCharge MS legs by MS 2A or SHH 7A

Charge Self TASStart 1 BFP

On completion of heating close HP/LP bypassRoll to 1200rpm & start Flange / Stud heatingRoll to 500rpm with CVSM full open

Close Steam side drains at Drum Press > 6 kgClose Steam side vents except RH & SU vents at Drum Press> 1 kg

Note TG vibrations, Eccentricity, Axial Shift & expansions at every stageStart the 2nd CW pump & the CT fansNote TG vibrations & eccentricity at Barring SpeedNormalise Expansion TankStart SCW pumpReset TLR / GLR