133918774 Commissioning Checklist PDF

2X600MW RGTPP HISSAR Commissioning Checklist

Record 12.3.10 / 12.3.11 Unit - ____ DATE: PAGE: OF

HT Motor Commissioning

Date:

Name of Equipment - _______________________________

• PTW closed • All Clearances received

• Mechanical

• Electrical

• Instrumentation

• Motor frame is properly earthed.

• Motor foundation is properly bolted.

• Coupling guard is in place.

• For HT motors, check breaker is healthy and

No indication persists on RAMDE relay.

• Control supply is normal.

• All motor protections are in service.

• Bearing temperature RTDs are wired up.

• Bearing Temp are showing valid in PMS and Local

• For water cooled motor : Motor cooler is charged from ECW side and ECW Pressure is > 4 Ksc.



• Breaker cold trial to be ensure i.e stop from EPB at breaker end and also from local push button

• Put breaker in Test/Normal mode

• Local push button is operative and released. • Breaker raked in normalised.

• Motor bump trial for DOR check. that marked on auxiliary

• Conduct No load trial of motor for 2 hrs.

• All trial readings are logged as per predefined

Interval. • Motor vibrations are within limit as per CMG.

• Clearance given for coupling

Remarks – Signature (Commissioning Engineer)



DG LOAD TRIAL CHECKLIST

Date:


• All PTWs closed • All Clearances received

• Mechanical

• Electrical

• Instrumentation

• Ensure Offsite maintenance personnel available near DG set • Changeover Switchyard Battery Charger Supply to other unit EPA

• Start DC JOP/ EOP/ SOP and stop corresponding AC pumps

In consultation with Mechanical (Turbine ) maintenance

• Monitor TG lift operation

• Start DG and charge DG DB

• Ensure Voltage, Frequency & DG parameters are OK

• Keep EPA Bus coupler in Open position

• Open EPA incomer 1 & 2

• Close EPA DG incomer 1 & 2

• Start AC JOP/ EOP/ SOP and stop corresponding DC pumps In consultation with Mechanical (Turbine ) maintenance



• Ensure that Station Battery Charger / UPS / 24V Battery charger is ON

• Ensure that Battery Charger current is within limit

• Run DG set for 30 minutes. All trial readings are logged as per

predefined interval.

• Start DC JOP/ EOP/ SOP and stop corresponding AC pumps In consultation with Mechanical (Turbine ) maintenance • Open DG incomers to EPA

• Close Incomer 1 & 2

• Start AC JOP/ EOP/ SOP and stop corresponding DC pumps In consultation with Mechanical (Turbine ) maintenance

• Ensure that Station Battery Charger / UPS / 24V Battery charger is ON • Changeover Switchyard battery charger supply from other unit • Stop DG set




Motorised Actuators Commissioning

Date -

Equipment Name -_______________________________ System - Condensate /Feed Water /Air /Flue Gas /Co al

• PTW closed.

Clearance received from Mechanical

Electrical Instrumentation

• Module racked in & normalized.

• Power/control fuses are of correct ratings are available.


• Module is in Remote/ Local mode.


• Local push button is operative and released.

• Actuator oil level is adequate i.e. >50 %

• Valve and motor bodies are earthed.

• Limit switch / Torque switch setting done.

• Valve manual operation lever engages.

• Valve manual trial is OK and Limit Switch feedback In PMS are correct.



• Valve / Damper position manually adjusted to 50 % • Direction of operation is correct.

• Valve / Damper Local trial taken, found

Satisfactory. Remarks –

Signature (Commissioning Engineer)



Pneumatic actuator Commissioning.

Date –

Equipment Name -_______________________________

System Condensate /Feed Water /Air /Coal

• All PTW closed.

Clearance received from Mechanical Instrumentation

• Manual isolating valve at upstream and downstream side Are Closed.

• Air supply is normalised. • There are no air leakages. • Valve body is earthed.

• Equalising valve is closed wherever applicable.

• Valve trial conducted at 25 / 50 / 75 / 100 %

• Difference between Demand and Feedback is

Acceptably low i.e. < 5%

• Valve fully closes when demand is zero.

• Air lock relay functionality checked (Air to Open / Air to Close)




Date - Lub Oil System Checklist

• LOPs individual checklist is filled. • Clearance received from

Mechanical Electrical Instrumentation

• Oil tank level is more than 70 % (In case of fans, above top run)

• Lub oil coolers are charged from ECW side.

• Lub oil coolers are charged from oil side.

• All gauges and switches are wired up and there root

valves are open.

• Pump suction and discharge valves are open.

• Lub oil lines to bearing are normal

• Start LOP.

• Pump develops normal flow and pressure.

• All Lub oil / Control oil gauges indicate normal values.

• Pump Recirculation valve has normal margin to further open.

• All flow / pressure switches reset in PMS

• Pump motor draws normal current.




PROCEDURE FOR STARTING OF

ID FAN- A/B Date -

• Ensure all PTWs are cancelled

• Clearances are available from

• Mechanical

• Electrical

• Instrumentation

• Ensure lube oil system checklist is filled

• Ensure Lube oil pressure > 2 ksc hydraulic coupling lube oil pressure >1ksc

• Ensure fan EPB is released. • Ensure fan brg housing cooling ECW line is charged.

• Ensure working oil coolers are charged from ECW side.

• Fan / motor coupling is done.

• Coupling guard is provided.

• Motor termination is done.

• Manholes are closed. • Normalise the modules of IGV, I / L damper ( in remote ) hydraulic

Scoop motor

• Ensure trials of IGV, scoop are conducted and are okay.

• Ensure all parameters, fan / motor brg temperature, vibration, Current are available on PMS.

• Ensure flue gas path manholes are closed



• Ensure all dampers in flue gas path are open at local as well as in PMS

• Ensure permissive and protections are checked / healthy.

• Check healthiness of main motor breaker.

• Normalise main motor breaker • Fan release is available in DDC panels. • Start the fan




Date -

PROCEDURE FOR STARTING OF FD FAN- A/B

• Ensure all PTWs are cancelled • Clearances are available

Mechanical

Electrical

Instrumentation • Ensure lub oil system checklist is filled

• Ensure Lube oil pressure > 1.2 ksc and control oil pressure > 8ksc

• Ensure fan EPB is released.

• Ensure f an fault is not persisting on backup desk.

• Ensure fan and motor are coupled.

• Ensure coupling guard is provided.

• If no load trial is conducted ensure checklist is filled and okay

• Normalize the modules of SAD-3 / SAD-4 (in remote)

• Normalize the modules of SAD-1 / SAD-2 and ensure actuator is on remote. • Ensure all parameters, fan / motor brg temperature, vibration,

Current are available on PMS. • Ensure all dampers in flue gas path are open at local as well as in PMS • Ensure flue gas path manholes are closed • Ensure secondary air path checklist is filled

]



• Ensure permissive and protections are checked prior to load trial


• Normalise main motor breaker • Take trial • Record reading for 8 hours




PROCEDURE FOR STARTING OF PA FAN- A/B

Date -

• Ensure all PTWs are cancelled • Clearances are available from

Mechanical

Electrical

Instrumentation

• Ensure line up of fan at local.

• Ensure lube oil system is running / healthy.

(Refer lube oil system procedure)

• Lube oil / control oil pressure are okay.

• Fan EPB is released.

• Fan / motor coupling is done.

• Coupling guard is provided.

• Motor termination is done.

• Manholes are closed.

• Normalise the modules of PAD-1 / PAD-2, PAD-3 / PAD-4 (In remote)

• Ensure trials of PAD-1 / PAD-2, PAD-3 / PAD-4 are Conducted and are okay.

• Ensure all parameters, fan / motor brg temperature, vibration,

Current are available on PMS.

• Ensure flue gas path manholes are closed



• Ensure all dampers in flue gas path are open at local as well as in PMS

• Ensure permissive and protections are checked / healthy.


• Normalize main motor breaker

• Start the fan




Checklist for BFP charging. Date -

• Ensure all PTW are closed.

• Clearance received from


• Discharge valve IBV (FD-3A/FD-4A) is closed. • Discharge Valve (FD-3/FD-4) is closed • Deaerator level is at least 700 mm.

• Open 5 vents of BFP namely

• Suction Strainer Vent • Booster pump vent • BFP suction line vent • Feed Water Line Vent (13.5 Mtr)

(If neither BFP is charged) • Recirculation line Vent

• Close that all drains

o Suction strainer drain o Main pump casing drain o Drain before discharge valve o Drain after discharge valve o Drain before recirculation valve o Drain after recirculation valve

• Open BFP suction valve (FS-1 / FS-2) upto 5% manually. • Ensure flow of water from all the vents • Open suction valve to 100 % • Close all the vents after ensuring free flow of water. • After charging, open recirculation valve manual isolating valve

Remarks –



Signature

Ensure following before taking BFP in service Date -

• Main motor individual checklist is filled. • Clearance received from


• Suction Valve (FS-1/FS-2) is open. • Recirculation Valve (FC-1/FC-4) manual isolating valve is open. • AOP motor individual checklist is filled.

• Discharge Valve (FD-3/FD-4) individual checklist is filled.

• Scoop motor individual checklist is filled.

• BFP main ECW isolating valve before ACW-2 / 17 open

• Motor cooler valve (ACW 2 / ACW 17) individual checklist is filled.

• Air supply to recirculation valve (FC-1/FC-4) normalised.

• WO sump level is at least 50 %.

• BFP Working oil coolers are charged from ECW & lub oil side

• BFP Lub oil coolers are charged from ECW & lub oil side.

• Seal water coolers are charged from seal water and ECW side

• ECW Pump in-service & pressure for cooling is at least 5.0 ksc • Magnetic filter is in service and bypass valve is closed.



• Booster pump jacket cooling outlet valve is opened.

• Main Pump jacket cooling outlet valve is opened.

• All drain and vents valves are closed

• Put AOP in service and ensure,

Lub oil pressure is at least 2.0 Ksc Working oil pressure is at least 3.0 Ksc Lub oil filter DP is < 0.4 Ksc

• BFP release is available

Remarks –




Checklist for draining of BFP Date -

• Ensure PTW is issued for BFP • Ensure BFP breaker is raked out. • Ensure EPB of BFP is pressed. • Close discharge valve (FD-3 / FD-4) & discharge module. • Close IBV of discharge valve (FD-3A/FD-4A) & discharge module • Close suction valve and manually tighten it (FS-1 / FS-2) • Close Recirculation valve manual isolating valve. (FC-1 / FC-4) • Close dosing valves (CHD1/2 CHD5/6) • Open all the vents as follows

o Suction strainer vent.

o Booster pump vent.

o BFP suction line vent.

o Recirculation line vent.

• Similarly open all the drains such as

• Suction strainer drain.

• BFP suction line drain.

• BFP casing drain.

• BFP drain before discharge v/v.

Recirculation line drain.



Ensure that drain after FD-3/FD4 is closed

Remarks –




Checklist for Feed Water line

Charging upto FRS Date-

• Deaerator level is at least 800 mm

• BFP A / B is fully charged.

• BFP A / B charging checklist is filled

• Seek clearance from maintenance group working on

• APRDS spray line

• HPBP spray line

• SH spray line

• HP Heaters

• Instrumentation (All transmitters are in service)

• All drains and Vents of BFP are closed

(Those mentioned in draining procedure)

• Open feed line vents at FRS and BFP discharge vent

• All feed water line valves upto FRS are open and their Individual checklist is filled. They are as follows

FD-5 FD-7 OR FD-6

FD-8 FD-10 OR FD-9

• Open IBV of BFP discharge valve (FD-3A/FD-4A)

• After ensuring flow of water from FRS vent, open main

Discharge valve (FD-3/FD-4)

• After ensuring free flow of water from vents, close



Discharge valve (FD-3/FD-4).

Remarks Signature (Commissioning Engineer)



Checklist for CEP charging

Date:

• All PTW are cancelled • Clearance received from

Mechanical Instrumentation

• Discharge valve (CD-3 / CD-4) is closed.

• Hot well level is adequate (2500 mm)

• Open strainer vent if there is no vacuum in condenser.

• Close suction strainer drain.

• Crack open suction valve and allow condensate to flow

Through vent.

• Fully open suction valve after free flow of water Through strainer vent.

• Open discharge valve (CD-3 / CD-4) manual IBVs Checklist for running CEP

• All the PTWs are closed. • Clearance received from

• Mechanical

• Electrical

• Instrumentation

• CEP (A / B)individual checklist is filled.

• Hotwell level is at least 2500mm



• Discharge valve (CD-3/CD-4) individual checklist is filled.

• Discharge valve is closed.

• Discharge valve manuals IBVs are open.

• Thrust Bearing oil level is at least 70 %

• Seal water to mechanical seal is lined up.

• ECW to Thrust Bearing cooling is lined up.

• Air vent (V5/V6) is open.

• Recirculation valve (CD-25) manual isolating valve is open.

• If it is first pump, CD-25 is open.

(If CD-25 is not available, open CD-27)

Remarks – Signature Commissioning Engineer



Condensate Line charging upto Deaerator

• CEP is charged upto discharge valve. • Clearance is received from Mechanical for following auxiliaries

• Gland steam condenser

• Drain cooler

• Condensate Polishing Unit

• LPH 1 / 2 / 3

• All the transmitters on the lines and auxiliaries are mounted by C & I.

• Hotwell level is at least 2600 mm

• Following condensate cycle valves are open and all above

Valves individual checklist is filled.

CD-13 OR CD-16 CD-14 OR CD-17 OR CD-19 CD-29 AND CD-30 OR CD-31 CD-32 AND CD-33 OR CD-34 CD-35 AND CD-36 OR CD-37

• CPU is bypassed

• Open the vents before and after GSC.

• Open vent on condensate line at Deaerator floor



• Run CEP (A / B)

• When there is sufficient flow of condensate through GSC vents, Close them.

• Open CD-14 / CD-17 and fill Deaerator.

• Open CD-21 and fill OCST.




Ignitor Oil Charging Date -

• For U # 2 LDO charging, ensure LDO supply isolating

Valve (near U#1 lift) opened.

• Ensure availability of Drain oil pump and its supply is normal

• Ensure that LDO header drain valve is closed • Ensure that Ignitor header drain valve is closed

• Ignitor oil main isolating valve Closed. • Air supply for IOTV available & air supply valve opened. • Ignitor oil header Y- Strainer both iso.valve opened (Near IOTV)

• Ignitor oil supply manual isolating valve to

Jamesberry Valves are closed

CD-1 EF-1

CD-2 EF-2 CD-3 EF-3

CD-4 EF-4

• Open LDO main isolating valve at firing floor • Open Ignitor oil main isolating valve

• Open IOTV.

• Note Ignitor oil pressure after IOTV (> 4 Ksc)

• Ignitor line vents at

o EF – 1 corner opened o EF – 2 corner opened o EF – 3 corner opened o EF – 4 corner opened

• Ignitor line vents are closed after proper venting

• Ensure drain oil tank level.



LDO line Charging :

Prechecks

• Ensure that LDO header drain valve is closed • Ensure that Ignitor header drain valve is closed

• Drain oil pump (0 mtr) module normal. • Ensure drain oil pump is available.

• Continuous monitoring of Drain Oil Tank level ensured.

• LDO Main isolating valve at firing station closed.

• Air supply for LO-30 (LOTV) open • Air supply for LO-23 (Press. Regulating Valve) open

• LO-23 (Press. Regulating Valve) Both iso.valve opened • LO-23 (PRV) - Bypass valve closed

• LO-23 (PRV)- both drain valves closed.

Charging Sequence

• Main iso. Valves at firing station opened • LOTV opened

• LOPCV (LO-23) opened

• Ensure LDO pressure > 4-5 Ksc

• LDO line vents at

o EF – 1 corner opened o EF – 2 corner opened o EF – 3 corner opened o EF – 4 corner opened



• Monitor Drain oil tank level.

• LDO line vents are closed after proper venting.

Oil Gun Line-up: Air (Atomising / Instrument) Normalization

• Boiler side instrument air is charged.

• Atomising Air supply both iso.valve are opened

• At LDO firing station • From main Instrument air header to

LDO firing station.

• Atomising air (LDO) corner isolating valves are opened and their feedbacks are available in PMS.

AB-1 CD-1 EF-1

AB-2 CD-2 EF-2 AB-3 CD-3 EF-3 AB-4 CD-4 EF-4

• Atomising air nozzle valve Instrument air supply valves are opened.

AB-1 CD-1 EF-1




• Ignitor atomising air corner isolating valve are open. (Jamesberry valve inlet)

CD-1 EF-1

CD-2 EF-2 CD-3 EF-3 CD-4 EF-4

• Instrument Air supply to all LONVs normal.

AB-1 CD-1 EF-1


• Air cooling lines to individual HEA gun are charged AB-1 AB-2 AB-3 AB-4

Oil (Ignitor / LDO) Normalization • Ignitor Jamesberry oil isolating valves are open

CD-1 EF-1

CD-2 EF-2 CD-3 EF-3 CD-4 EF-4

• Ensure LONV manual isolating valves are

open and their feedback is available in PMS

AB-1 CD-1 EF-1




• LOTV opened

• LOPCV (LO-23) opened & LDO pressure after LOPCV > 6.0 ksc

• There are no oil leakages Remarks Signature (Commissioning Engineer)



COAL MILL Date -

Following subsystems are released for Commissioning Lub oil system Seal air system Coal system Primary air cycle & Dampers Fire fighting system 1. Lub oil system Girth Gear greasing system

• PTW closed / clearance received to commission system.

• Individual Equipment checklist is filled and equipment lined up.

• G.G. seal air fan in ON

• Atomising air I/L valve is open and Pressure > 6 Ksc.

• Grease pump inserted in barrel.

• Grease barrel level is adequate.

• Grease Panel checked and C&I cables terminated.

• Grease pump ON and pressure is adequate.

• Greasing cycle / frequency is OK. LP/HP/B&S

• PTW closed / clearance received.

• Individual equipment checklist filled and equipment lined up.

• LP flow switches I/L and O/L valves opened and



Bypass valve closed.

• After starting LP pump, all flow switches reset and Indicate > 30 LPM

• Both HP feeding line switches reset.

• After starting HP pump, all 8 pressure switches reset.

• After starting B & S pump, all 4 B & S pressure switches reset.

• LOP changeover checked

Reducer LOP


• Individual equipment checklist filled and equipment lined up.

• After starting reducer LOP, its discharge pressure switch reset.

• Discharge pressure is adequate.

• Standby reducer LOP trial OK.

Motor Bearing LOP


o Individual equipment checklist filled and equipment lined up • After starting Motor LOP, both discharge pressure

Switches reset.

• Discharge pressure is adequate.

• Standby reducer LOP trial OK

2. Seal air System

• PTW closed / Clearance received



• Individual Equipment checklist is filled and equipment lined up.

• Suction damper is open

• Outlet damper air supply is normal and trial OK

• Fans gearbox oil level is at least 30 %

• Auto viscous filter oil level is normal and oil is clean.

• Seal air dampers to RC feeders open.

• Seal air valves to trunion open.

• Seal air fans current adjusted to normal i.e. 180 Amps.

• Seal air fans changeover checked.

• For second mill, ensure that seal air fan belongs to opposite section Of 1PA / 2PA

3. Coal system


• Individual Equipment is filled and equipment lined up.

• Bunker level is adequate and CHP is informed.

• Bunker outlet gate is open.

• Feeder inlet gate is open.

• Mill O/L gates trial taken and proper feedbacks available in PCR.

• RC feeders ‘No coal on belt’ resetted.

• RC shut off gate air supply is normal.

• COC shear pin is normal and operation is checked.

4. Primary Air Cycle




• Individual Equipment is filled and equipment lined up.

• Manual purge air damper is open.

• PAD 11 lock pin removed.

• PAD-11 air supply normalised.

• Instrument air supply to purge air dampers is normal and trial is OK.

• Air supply to following dampers is normal and trial OK



• PAD 9

• PAD 10

• PAD 12

• PAD 13

4. Mill fire fighting system

• At least 4 CO2 cylinders are available at CO2 rack.

Remarks




PROCEDURE FOR CHARGING OF SEAL OIL SYSTEM

Date -

• All PTW’s are cancelled • Clearance received from


• SOST is Empty / Full

• Generator LLD is completely drained and all valves

are closed and it is normalized.

• All Seal oil pumps individual checklist is filled.

• MOT Tank level adequate (1200 mm)

• AC / DC EOP is available and its individual checklist is filled.

• Seal oil cooler is charged from ECW side • Seal oil cooler is charged from Seal Oil side.

• Seal oil standby filter is cleaned and charged.

• Lub oil lines to Generator bearing no 5 / 6 are charged.

• Ensure that generator air side drain lines are connected.

• Ensure that generator H2 side drain lines are connected.

Connected (SOST in service)



• Following drains are closed

SOST drain to LPBP return header Seal oil coolers Seal oil filters Return header siphon drain to atmosphere.

• Ensure following valves are open .

• Common suction valve of SOP from SOT

• SOP-1 discharge valve.

• SOP-2 discharge valve

• DC SOP discharge valve

• Seal oil filter vent valve

• Seal oil cooler vent valve

• Seal oil DPR outlet valves (TE & EE)

• Ring Relief line Valves (TE & EE)

• H2 side impulse lines to DPR

• Oil side impulse lines to DPR

• Seal oil recirculation valve to lub

Oil return header.

• Seal oil makeup valve from SOST.

• IOT float valve bypass valve

• SOT inlet manual isolating valve (Before float valve) open.



• Start AC / DC EOP

• Observe level rise in SOT at local and PMS. • SOT level Low switch reset in PMS.

• IOT level Low switch reset in PMS.

• SOST Level Low switch reset in PMS.

• Ensure SOT float valve closes and SOT level rise stops • After 200 mm level builds in IOT, close float valve bypass valve.

• Start SOP 1 / 2 in recirculation mode.

• After ensuring free flow of oil from cooler

& Filter vent, close them.

• Gradually close recirculation valve to 10 %

• Note Seal oil pressure at seals

• Note Seal oil flow (TE / EE)

• Note Ring Relief oil flow (TE / EE)

• Monitor LLD for no accumulation of oil.

• If no oil observed in LLD, gradually close Recirculation valve to Full and tighten it.

• If oil is observed in LLD, ensure lineup again. If lineup is correct, Open Recirculation valve to full And close cooler inlet valve to isolate Seal oil system.

Note following



• SOP current - __________ • SOP discharge pressure - __________ • Seal oil pressure at seals - __________ • Air/Seal oil DP - __________ • Seal oil flow (TE/EE) - __________ • Ring relief oil flow (TE/EE) - __________ • MOT level - __________ • SOT level - __________ • IOT level - __________

Remarks




PROCEDURE FOR DRAINING OF SEAL OIL TANK

Date -

• Clearance for draining of SOT received. • Make note of SOT & MOT levels.

• If SOST is also to be drained, keep seal oil makeup valve

Open.

• If SOST is not to be drained, keep seal oil makeup valve Closed.

• DC SOP module is off.

• Start AC SOP.

• Open gradually recirculation valve to lube oil Return header fully.

• Now gradually close seal oil cooler inlet valve.

• Close Ring Relief oil valves (TE & EE)

• SOST Level LOW limit switch acts in PMS

• Observe drop in SOT level and SOT low level

Switch acts in PMS.

• Ensure AC SOP 1 / 2 trips on SOT level LOW.

• If SOP does not trip on SOT level LOW, stop it and isolate modules of both SOPs.

• Close seal oil valves after DPR (TE & EE). • Note final MOT level.

Remarks



Signature

(Commissioning Engineer)



PROCEDURE FOR DRAINING OF INTERMEDIATE OIL TANK

• Clearance for draining of IOT received. • Make note of IOT level ______

• Make note of MOT level ______

• DC SOP is available, its Control supply MCB at Local

Panel off and Module normal.

• Identify DC SOP control supply MCB at local panel

• SOT is drained

• Valves status should be same as that in SOT drainin g.

• IOT float valve bypass line is open.

• Normalize DC SOP control supply and it will pickup

• Observe drop in IOT level and observe rise in MOT level.

• Stop DC SOP after emptying of IOT by tripping Its control supply MCB at local panel

• Switch Off module of DC SOP.

• IOT level LOW switch acts in PMS.

• Note final MOT level.____________

Remarks




Vacuum Pulling Date -

Preconditions for Vacuum pulling

• Turbine is on barring gear. • Steam line not charged.

• HPLP bypass closed.

• APRDS charged from other unit.

• At least one CW pass is charged.

• One CEP is in service.

There 3 subsystems involved in vacuum pulling opera tion .

1. Condenser system 2. Vacuum pump system 3. Seal Steam system

1. Condenser System

• Vacuum breaker is open.

• OCST level is more than 1000 mm and Gland sealing Line to LP flash tank Valves is open.

• All MAL valves closed. • All HRH drains closed .

• HRH 101

• HRH 102

• HRH 103

• HRH 104



• HRH 109

• HRH 110

• CRH 101 All drip valves to HP/LP flash tank closed

• DR 9

• DR 16

• DR 22

• DR 28 2. Vacuum pump System

• Vacuum pump air valve of charged CW pass is open.

• Vacuum pump suction valve (manual) is open.

• Instrument air supply to solenoid

valve is available.

• Seal water level is more than 50-60 %

• Seal water PHE is charged from ECW side and SW side.

• Seal water pump runs and its flow is more

than 180 LPM 3. Seal steam System

• APRDS header temperature is > 220 Deg.



• Seal steam atmospheric drain valve is open.

• Leak off bypass valve is close.

• MAW 10 oil pump running and develops 30 Ksc pressure.

• MAW 15 oil pump running and develops

30 Ksc pressure.

• GSE seal valve is open and safety valve is close

• Gland steam exhauster is in service. Vacuum Pulling Procedure

• Inform other unit

• Start vacuum pump

• At 0.2 Ksc vacuum, close Vacuum breaker.

• Open AS-9 and charge seal steam upto Seal steam supply manual isolating valve if PRDS steam Temperature is above 200 Deg.

• Open seal steam supply valve and charge

seal steam upto MAW 15.

• Start second vacuum pump.

• Open MAW 15 gradually from PCR and at 100 mbar Seal Steam pressure put it in Auto mode.

• Observe turbine speed.

Remarks –






DRAINING OF HPH – 5 Date -

• Ensure Condenser Rear pit Dewatering pump available

• Close EX–12 valve and discharge its module

• Close DR-2 valve

• Close DR-2 iso.valve

• Open DR – 13 valve


• After HPH-5 Drip Level is low close DR- 13

• After HPH-5 Drip Level is low close DR- 16

• Close DR – 13 manual isolating valves


• Ensure that HPH-5 drip level does not rise.

• Close air evacuation valve

• Open IBV of HPH Bypass valve (FD-6A)

• Open HPH Bypass valve (FD-6)

• Closed HPH Inlet (FD-5)

• Closed HPH Outlet (FD-7)

• Open inlet water box vent

• Open outlet water box vent

• Open inlet water box drain

• Open outlet water box drain

• Open shell side vent



• Open shell side Drain.

• Ensure condenser vacuum does not fall.

• Monitor condenser rear pit level

Remarks – Signature

(Commissioning Engineer)



DRAINING OF HPH – 6 Date -

• Ensure Condenser Rear pit Dewatering pump available

• Close EX – 13 valve and discharge its module.

• Close DR-2 valve

• Close DR-2 iso.valve



• After HPH Drip Level is low close DR- 6

• After HPH Drip Level is low close DR- 9



• Ensure that HPH-6 drip level does not rise.

• Close air evacuation valve

• Open IBV of HPH Bypass valve (FD-9A)

• Open HPH Bypass valve (FD-9)

• Closed HPH Inlet (FD-8)

• Closed HPH Outlet (FD-10)

• Open inlet water box vent

• Open outlet water box vent

• Open inlet water box drain

• Open outlet water box drain

• Open shell side vent.



• Open shell side Drains.

• Ensure condenser vacuum does not fall.

• Monitor condenser rear pit level.




CHARGING OF HPH – 5 / HPH - 6 FROM FEED WATER SIDE.

Date -

• Ensure all PTWs are cancelled. • Clearance received from

Mechanical


• Deaerator level is adequate. (800mm) • Condenser rear pit dewatering pump is available • Feed water line is charged upto FRS and its checklist is filled.

• Drain valves of APRDS spray, HPBP spray, SH spray are closed

• Ensure following drains are closed,

• Water box inlet side • Water box outlet side

• Drain before inlet valve

(Loop at 8.5 mtrs) • Ensure following vents are opened,

• Water box inlet side • Water box outlet side.

• Ensure shell side drains are open • Ensure following actuator motor checklist is filled,

1. Heater inlet valve (FD-5 / 5A) (FD-8 / 8A) 2. Heater outlet valve (FD-7 / 7A) (FD-10 / 10A)



3. Heater bypass valve (FD-6 / 6A) (FD-9 / FD-9A) • Open IBV of heater inlet valve (FD-5A / 8A) • Open IBV of heater outlet valve (FD-7A / 10A) • Open IBV of BFP discharge valve (FD3A/4A) • Ensure free water flow from water box vents • Ensure that there is no water coming from

shell drains and close them • Open Heater Inlet valve (FD-5 / FD-8)

• Open Outlet valve of Heater-5 (FD-7 / FD-10)

• Close (FD-5A / 8A), (FD-7A / 10A) and (FD-6 / FD-8)

• Close inlet water box vents

• Close outlet water box vents




ECW SYSTEM CHARGING CHECKLIST

Date -

• ECW system charging informed to other unit. • AHP is informed about ECW charging. • ECW Tank - make up valve upstream & downstream manual

isolating valves opened • ECW Tank make up valve supply normalised & valve put in auto. • ECW Tank - make up Bypass valve closed

• Ensure ECW line Butterfly valve & it’s manual isolating valve

(At Low Point Drain Header) closed.

• Ensure ECW line Butterfly valve for Hotwell make up (At ‘0’ mtr.) closed.

• Ensure Deaerator initial filling valve (DM-6) closed

• ECW system make up valve at ‘0’mtr. Opened

• At least one ECW pump suction & discharge valve opened

• At least one PHE ECW Inlet & Outlet valve opened

Ensure following vent / drain valves are opened :

Boiler Area:

• ECW Inlet & Outlet line vents near ESP opened

• ECW drains at APH – A & B Guide Brg. LOP opened (2 nos.)

• ECW vents at Boiler elliptical door (LHS & RHS) opened (2 nos.)

• Boiler area ECW Main isolating valve vents

(Near Boiler elliptical door) opened (2 nos.)

Turbine Area: • ECW - MOT cooler vents above cooler at 8.5 mtr (2 nos) • ECW header vents at condenser front pit opened (2 nos.)



• ECW header vents at PHE Inlet & Outlet opened (2 nos.)

• ECW vents above PHE opened

• ECW vents at Generator coolers are opened.

• Ensure ECW make up pump picks up on auto on Tank level Low.

• Ensure Continuous monitoring of ECW make up tank level &

ECW suction pressure > 2.0 ksc

• If ECW suction pressure does not build up, again review all the vents

• Respective vents are closed after ensuring free flow of water. • Ensure that all the coolers are charged and properly vented.




ECW SYSTEM DRAINING CHECKLIST

Date -

• ECW make up pump stopped • ECW Tank - make up valve upstream & downstream manual

Isolating valves closed

• ECW system make up valve at ‘0’mtr. Closed

• At least one ECW pump suction & discharge valve opened

• At least one PHE ECW Inlet & Outlet valve opened

• Ensure following vents are opened:

� ECW Inlet & Outlet line vents near ESP opened

� ECW header vents at condenser front pit opened ( 2 nos. )

� ECW header vents at PHE Inlet & Outlet opened ( 2 nos. )

� ECW vent of PHE opened.

For ECW system draining : • PHE drain valves opened • ECW pump discharge header drain valve opened




CW DUCT CHARGING FROM BUTTERFLY VALVE TO PASS INLET VALVE

Date -

• All PTW are cancelled, clearance is available for duct charging,

Subsequent running CW pump, and also opening interconnecting valve from

Mechanical

Civil

Electrical

Instrumentation

• C.W. pass-A Inlet valve closed • CW pass A inlet valve push button pressed & module locked

• C.W. pass-B Inlet valve closed

• CW pass B inlet valve push button pressed & module locked

• ACW pump A suction valve is closed

• ACW pump B suction valve is closed

• ACW pump C suction valve is closed

• Checklist of interconnecting valve actuator ok. • All manholes of duct are closed

• All drains are closed.

• Stop lock gate available.

• Suction net is in proper condition.

• Bar screen available



• CWPH & HUMP breathers are open.

• Dewatering pump at CWPH and condenser pass side are available.

• Vent at transformer yard opened • Vent near switchyard opened • Vent at duct manholes (2 nos) opened

• Note down tide status.




Procedure for CW duct draining from CW pump BFV to condenser pass inlet valve.

Date-

• Ensure healthiness of dewatering pumps at following locations TWS pit Condenser inlet pass.

• Clearance for duct isolation & draining.

• Screen wash pump main isolation valve closed.

• Selected travelling water screen disassembly to be ensured.

• Interconnecting valve is closed. Module locked.

• CW Pumps of resp pass to be stopped. Breaker locked.

• Ensure condenser pass inlet valve closed.

• Ensure ACW system isolated.

• ACW suction valve closed.

Draining during low tide.

• Initially, crack open discharge BFV CW pump.

• Fully open discharge BFV.

• Ensure natural draining due to low tide.

• Open following vents

o Transformer yard,

o Switchyard



o Two vents on way to pump house.

• Close the stop log gate at the peak of low tide.

• Start dewatering from TWS pit.

(With proper ratings of dewatering pump)

• Ensure total dewatering from pit.

• Ensure at condenser side,

o Water box vent open. (Inlet &outlet)

o Crack open condenser pass drain valve.

o Gradually open condenser inlet valve

• Ensure proper draining from hump to condenser

Draining during high tide. • Close the stop log gate. • Start dewatering from TWS pit.

(With proper ratings of dewatering pump)

• Crack open discharge BFV of selected pump.

• Fully open discharge BFV.

• Open vent at

o Transformer yard,

o Switchyard

o Two vents on way to pump house.

• Ensure total dewatering from TWS pit.



• Ensure at condenser side,

o Water box vent open. (Inlet &outlet)

o Crack open condenser pass drain valve.

o Gradually open condenser inlet valve • Ensure proper draining at condenser side.




Checklist for APRDS Charging

Charging from other unit

• All the relevant PTWs are closed. • Clearance received from

• Mechanical

• Instrumentation • Inform other unit about APRDS charging.

• Ensure that all the valves from APRDS header are closed.

• APRDS soot blowing

• Seal steam

• SCAPH

• Deaerator Pegging.

• Crack open following drains

• I/C Line near FOPH tapping

• I/C line opposite AHU coolers

• I/C line near CBD

• I/C line near reheater spray station

• I/C line near superheater spray station

• Before AS-39

• Header drain

• Crack open AS-39 manually

• Observe header pressure and temperature locally and in PMS.



• Gradually further open the valve and build header pressure to

Match other unit pressure.

• Initially throttle and after sometime close I/C line drains.




APRDS charging from MS line

• MS line is charged and its pressure is sufficiently above APRDS header pressure

• Following valves are available and their individual checklist is filled

• AS-104

• AS-21

• AS-22

• FD-21

• FD-23

• Open MS to APRDS line vent.

• Open following drain valves

• Between AS-21 & AS-22

• Between AS-22 & AS-23

• After AS-23

• AS-104

• Gradually open AS-21 to full.

• Close AS-104, header vent, drain between AS-22 & 23, after AS-23.

• After unit load stabilizes and turbine self sealed, put AS-22

in Auto keeping pressure set point below that of other unit

• Gradually lower other unit pressure set point and raise incoming APRDS header pressure set point.

• After other unit AS-22 fully closes, close all the drains.

• Open spray manual isolating valves as per needs. Remarks –




CHECKLIST FOR CEP DRAINING



Date:

• Ensure PTW issued on CEP A / B (PTW no: )

• Ensure CEP breaker is racked out and locked

• Ensure EPB of CEP is pressed.

• Close discharge valves (CD-3 / CD-4) closed &

it’s modules off.

� Close manual IBV of discharge valves.

� Close suction valve & manually tighten it.

� Close sealing water supply isolating valve OCST side isolating valve

CEP discharge side isolating valve

• Close priming line-isolating valve. • Close Air evacuation line to LP flash tank isolating valves

near LP flash tank.


CHECKLIST FOR DRAINING OF HFO LINE



Date:

• Ensure PTW issued HFO system (PTW no: )

• Inform to FOPH Operator for HFO Draining.

• Check the megger value of HFO drain oil pump.

• Cold trial of HFO drain oil pump module (1MB –4RB)

• Check the HFO sump tank having level rod for level detection &

check sump level.

• Line up the HFO drain oil pump.

� Ensure suction ball valve open condition.

� Ensure suction filter of HFO drain pump cleaned.

• Ensure At firing floor, HFO station main isolating ball valve closed. • Ensure HFO Return line main isolating ball valve closed.

• Ensure drain pump discharge line manual isolating valve open (at firing floor return line of HFO).

• Ensure short re-circulation valve (HO-48) closed.

• Ensure long re-circulation valve (HO-51) closed.

• Ensure Steam heating line for HFO Sump tank made charge.

• Ensure Steam Trap valve on HFO sump tank is operative.

• If Steam Trap valve on HFO sump tank not operative,

open Its Bypass valve.

• Ensure drain valve of HO-40 open.



• Ensure two drain valves of HO-33 open.

• Ensure HFO sump tank level adequate i.e. more than 60 %.

• Ensure discharge ball valve of Drain oil pump open.

• Start the HFO Drain oil pump.

• Check the drain oil pump discharge pressure at Local gauge.

• Ensure with FOPH operator the level of HFO Tank increasing.

• After Complete draining of HFO i.e. Sump tank level low (10 %),

stop the Drain oil pump. Remarks – Signature (Commissioning Engineer)

Motorised Actuators Commissioning

Date -

Equipment Name -__ S 135 /S23 SBCV



• PTW closed.

Clearance received from Mechanical


• Module racked in & normalised.

• Power/control fuses are of correct ratings are available.


• Module is in Remote/ Local mode.


• Local push button is operative and released.

• Actuator oil level is adequate i.e. >50 %

• Valve and motor bodies are earthed.

• Limit switch / Torque switch setting done.

• Valve manual operation lever engages.

• Valve manual trial is OK and Limit Switch feedback In PMS are correct.

• Valve / Damper position manually adjusted to 50 % • Direction of operation is correct.

• Valve / Damper Local trial taken, found

Satisfactory. Remarks –






No load trial for LT Motor check list

Date:


• PTW closed by electrical section. • All Clearances received

Mechanical

• Electrical



• For LT motors ensure Power / control fuses are of correct ratings.



• Put breaker in Test/Normal mode

• Cold trial of module is OK.

• Local push button is operative and released. • Module normalised.

• Conduct No load trial of motor for 1 hours.

• Motor DOR is in line with that marked on auxiliary.


Interval. As No load current : • Clearance given for coupling

Remarks – Signature(Commissioning Engineer)



No load trial for LT Motor check list


• PTW closed by electrical section . • All Clearances received

Mechanical

• Electrical



• For LT motors ensure Power / control fuses are of correct ratings.



• Put mpdule in Test/Normal mode

• Cold trial of module is OK.

• Local push button is operative and released. • Module normalised.

• Conduct No load trial of motor for 1 hours.

• Motor DOR is in line with that marked on auxiliary.


Interval. As No load current : • Clearance given for coupling

Remarks –

Signature(Commissioning Engineer)



CHECKLIST FOR MOT DRAINING Date:

• Ensure PTW issued (PTW no: )

• Ensure central centrifuge not in service & isolated.

• Ensure central centrifuge line o/l to MOT- 1 closed.

• Ensure central centrifuge line o/l to MOT- 2 closed.

• Ensure MOT • Close Air evacuation line to LP flash tank isolating valves

near LP flash tank.




ESP Zero duct calibration check list

Date:


• All Clearances received

• Mechanical

• Electrical

• AHP

• Respective pass inlet and outlet gas dampers closed.

• Respective pass manholes are closed.

• Respective hopper heaters, no maintenance work is going on esp pass hoppers.

• Respective hopper heaters manhole are closed. • For Opacity monitor, ensure Power / control fuses are of

correct ratings and supply normal.

• All trial readings are logged as per predefined interval.




Date post:	01-Dec-2015
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133918774 Commissioning Checklist PDF

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