A. HP Turbine Warming - most effective means of accomplishing this pre-warming is causing pressurization, the HP turbine with steam, thus raising the temperature to the saturation temperature of the steam or higher. The pressure normally specified is __ to __ksc (g)

The pressurization should be used whenever the first stage shell inner surface is below ___ C. For higher metal temperature, the pre-warming is not necessary.

HP  Turbine Warming check the MSP should be?

HP Turbine Warming MST should be?

HP Turbine Warming  RHP should be?

___ and ___  be in service (HP Turbine Warming)

GOV is execute, LLM is set in -2% and Governor Normal Set  is?

while the Auxiliary  Steam Temperature  (200-267C)  and pressure is

Also check Condenser Pressure, Normal Limits is __ ksc

TCS will Open HP Turbine warming Valve (MV-AS1011) Note: Maximum position at initial opening of the valve is __ % opening

TCS will Close CV (B) below seat drain valve from 100% to 20% opening after the 30s that the AS1011 reached the opening of _%

During HP turbine warming, steam goes from HP to ILP through Packing No. 2 thus, turbine speed increases. Take note of increase in rpm. Recommended turbine speed during HP turbine warming is  ____ rpm. Monitor maximum speed reached

When HP Turbine Metal Temperature reaches at  ___C. The holding operation should be carried out. See FIGURE 2 for the required holding time.

Eccentricity of 0.06 mm is noticeable after turning gear engaged. Wait for one to two minutes until eccentricity reaches its normal value of ___ to ___mm at turbine speed of 3 rpm.

B. SERVICE MS & RH FOR TEMPERATURE CONTROL,MS DESUP = > ___ MSF RH DESUP = > 69MSF NOTE: Transfer operation complete

C. START TURBINE PREPARATION- CHEST WARMING (holding time:___

Note: If after two tries of RESET but NRV is still in abnormal state, check _____  site for troubleshooting. Probable cause could be the air supply for solenoid valve is closed.

Check if CV(B) crack open and closed again before the MSV open. (up to __ % Opening).

Check that MSVs open (by internal bypass) to warming position. (min. and max 0-__ %opening) Refer to the appendices (Chest Warming Chart)

Monitor the differential temperature between CV chest inner and outer metal surface. When it rises more than ___C, TCS will close MSV

Monitor the differential temperature between CV chest inner and outer metal surface. When it lowers less than ___C, TCS will reopen MSVs to warming position.

CV chest warming is complete when: • CV Outer Wall Temp. ≥ ___ °C& CV Inner and Outer Metal ∆T ≤ ___ °C. • OR CV Chest warming has been carried out of minimum of 1hr. Whichever condition satisfied first.

Even if Criteria Dn is satisfied, do NOT proceed to RUB CHECK until ALL (MS and RH) STEAM TEMPERATURE MISMATCH IS WITHIN RANGE. Verify at CRITERIA DETAIL DISPLAY (1/4). • Reheat Steam Temperature should be at ___°C.

Note: Load limit (___ %) and governor (0%) automatically set by the tcs in turbine preparation for rolling.

D. START TURBINE RUB CHECK -when temperature is High Decrease Firing in ____?

Note: Monitor MSV Inlet Steam Temp VS HP After first stage Inner Wall Metal Temp and CRV inlet steam temp. vs. reheat bowl inner metal temp. Make Sure to be always on ____________so that turbine will be heated accordingly by its steam supply. Always monitor the temperature of the turbine and always inform boiler operator to maintain on the desired temp of the steam supply for the steam condition.

. Check if ATS will Select target speed ___  rpm for rub check

. At  ___rpm, check that the turning gear disengages and its motor is stopped automatically.

. Monitor when the speed reaches approx. 200 r/min, ATS automatically set “ICV to _____” to keep the speed from rising too fast

Note: Listen carefully for rubs or abnormal sound in the turbine and generator interior, vibration at each bearing pedestal and vibration on the shaft. When Turbine Speed coast down below ___ rpm, rub check is completed.