TURBINE OIL SYSTEM

TURBINE OIL IS USED FOR

LUB OIL

JACKING OIL

OIL TO GATE VALVE GEARING

TURBINE GOVERNING OIL

LPBP GOVERNING OIL

GENERATOR SEAL OIL

REQUIREMENT OF TURBINE OIL

MOT

AOP’s and JOP’s

MOP and INJECTORS

COOLERS

OIL TEMPERATURE CONTROL VALVE

DUPLEX FILTERS

OIL THROTTLES

HYDRAULIC TURNING GEAR

VAPOUR EXHAUSTER FANS

CENTRIFUGE

DOT and LOT

ELEMENTS OF OIL SYSTEM

DESCRIPTION OF TURBINE COMPONENTS IN OIL SYSTEM

TURBINE BEARINGS - 7Nos. HPTF, HPTR, IPTR, LPTR, GENF,

GENR,EXCR

HYDRAULIC TURNING GEAR - IN IPTR PEDESTAL

HAND BARRING GEAR - IN IPTR PEDESTAL

OIL THROTTLE VALVES - 1No. FOR EACH BEARING

MOP & PRIMARY OIL PUMP - IN FRONT PEDESTAL

VAPOUR LINES - FROM EACH PEDESTAL WITH REGULATING VALVE

TG LUB OIL & JACKING OIL SYSTEMS

• LUB OIL SYSTEM

– LUBRICATION

– BARRING GEAR

– HEAT DISSIPATION

• JACKING OIL SYSTEM

– SHAFT LIFTING

– PREVENT DRY FRICTION

– OVERCOME BREAKING AWAY TORQUE DURING START UP ON HYDRAULIC TURNING GEAR

MOT

AOP-2 AOP-1 EOP

COOLERS

FILTERS

LUB OIL SUPPLY HEADER

LUB OIL RETURN HEADER

INJE

CT

OR

TURBINE LUBRICATING OIL SYSTEM

MAJOR EQUIPMENTS IN LUB OIL SYSTEMMOT - WITH DRAIN CHAMBER, CLEAN CHAMBER, MOT BASKET

STRAINER, AOPs, EOP, OIL INJECTOR 1, JOPs, DCJOP, OIL VEFs, LEVEL

INDICATOR & LEVEL SWITCH, MOT SAMPLING POINT

LUB OIL COOLER & LUB OIL FILTER

TEMPERATURE CONTROL VALVE

OIL PURIFIER / MOT CENTRIFUGE

LEAKAGE OIL TANK WITH LEAKAGE OIL PUMP

DIRTY OIL TANK

OIL CANAL AT 13mtr - OIL INJECTOR 2, MOP SUCTION & DISCHARGE

PIPING, LUB OIL SUPPLY HEADER, LUB OIL RETURN HEADER, VAPOUR

HEADER, JO SUPPLY HEADER, IMPULSE PIPINGS

AUX STEAM

TEMPORARY TANK

DRAIN

CIRCULATION PUMPS

L.O OUTLET

L.O INLET

ECW INLET

ECW OUTLET

LUB OIL COOLING ARRANGEMENT

LUB OIL TEMPERATURE CONTROL

TO INCREASE TEMP - BYPASS COOLERSTO DECREASE TEMP - PASS THROUGH COOLER

TEMP. CV

LUB OIL FILTERFILTER CHANGEOVER

CLOSE DRAIN OF STANDBY FILTER

OPEN VENT OF STANDBY FILTER

CRACK OPEN EQUALIZING VALVE & NOTE PR. DIP

WAIT TILL VENT OF STANDBY FILTER BECOMES WARM

CLOSE THE VENT OF STANDBY FILTER AND LEAVE IT CRACK OPEN & NOTE THE PRESSURE

ROTATE CHANGEOVER VALVE UNTIL ARROW FACING STANDBY FILTER

CLOSE THE VENT VALVE FULLY & NOTE THE PRESSURE

NOW OTHER FILTER CAN BE DRAINED IF REQUIRED

OIL CENTRIFUGE

BOWL SPEED : 8425 rpm (approx)SUCTION : FROM DRAIN / CLEAN

CHAMBERDISCHARGE : TO MOT IN RETURN

LINEBOOSTER PUMP TYPE : GEAR PUMP

FEED PUMP

HEATER

OIL CENTRIFUGE

FLOW

METER

FROM MOT SIGHT GLASS

TO MOT

ANTI FLOOD TANK

TG LUB OIL & JACKING OIL SYSTEMS

TECHNICAL DETAILS OF OIL PUMPS

MOP AOP EOP AC JOP DC JOP

QUANTITY 1 2 1 2 1

MAKE KSB KSB ALLWEILER AG

ALLWEILER AG

ALLWEILER AG

CAPACITY 139 m3/hr 152.24 m3/hr 108 lit/m 76 lit/m 76 lit/m

DISCH.PR 8.2 ata 84.7 MWC 27.66M 120 bar 120 bar

SPEED

(RPM)

3000 1485 1425 2950 2950

DRIVE TURBINE AC MOTOR DC MOTOR AC MOTOR DC MOTOR

OIL PROPERTIES OF IMPORTANCE

MECHANICAL IMPURITIES : < 100 ppm

MOISTURE CONTENT : < 100 ppm

ACIDITY : < 0.14 mg of KOH/gm

KINEMATIC VISCOSITY (37.8 DEG): 47.5-49.5 CS

KINEMATIC VISCOSITY (50 DEG) : 28 CS

FLASH POINT : 200DegC

POUR POINT : -6 DegC

ASH CONTENT : 0.01% (BY WEIGHT)

LEAKAGE AND DIRTY OIL TANKS

LEAKAGE OIL TANK : AT 0m

INPUTS : FILTER AND COOLER DRAINS

OUTPUT : MOT THROUGH LOP

DIRTY OIL TANK : AT 0m

INPUTS :LUB OIL FILTER AND COOLER TRAY DRAINS

OIL CENTRIFUGE TRAY DRAIN

ANTI FLOOD TANK DRAIN

MOT ROOM AND OIL CANAL FLOOR DRAINS

OUTPUT : NO (TO BE COLLECTED IN BARRELS)

AOP/EOP START PERMISSIVE : NIL

AOP/EOP STOP PERMISSIVE : NIL

AOP-1 STARTS ON AUTO : SLC OF AOP-1 IS ON AND AOP-2 TRIP

OR LUB OIL PRESSURE < 5.48 Kg/cm2

AOP-2 STARTS ON AUTO : SLC OF AOP-2 IS ON AND AOP-1 TRIP OR LUB OIL PRESSURE < 5.47 Kg/cm2

EOP STARTS ON AUTO : LUB OIL PRESSURE < 1.78 Kg/cm2

SLC OF AOP/EOP

Jacking oil pump-1 start on auto : SLC of JOP-1 ON and turbine speed < 510 rpm

Jacking oil pump-2 start on auto : SLC JOP-2 ON and JOP-1 trip or jacking oil pressure < 100kg/cm2 and turbine speed < 510 rpm or on barring with a time delay of 5 sec command for- Switch off JOP -1 Switch on JOP -2 Switch off SLC

DC Jacking oil pump srart on aut: SLC ON and JOP 1 & 2 fails to develop pressure > 100 kg/cm2

Jacking oil pump stop on auto : Turbine speed > 540 rpm

SLC OF JOP

SLC OF TURNING GEAR

TURNING GEAR VALVE PERMISSIVE FOR OPENING:

- SEAL OIL / H2 DP > 0.9 KSC AND

-SEAL OIL PRESSURE OF TE/EE > 3.8 KSC

TURNING GEAR VALVE OPENS ON AUTO IF

SLC TURNING GEAR ON AND TURBINE SPEED < 200RPM

TURNING GEAR VALVE CLOSES ON AUTO IF

SLC TURNING GEAR ON AND TURBINE SPEED > 250 RPM

TURNING GEAR VALVE CLOSES ON PROTECTION IF

- FIRE PROTECTION OPERATES

-LUB OIL PRESSURE < 1.88 KSC

IF FIRE PROTECTION - 1 PRESSEDSLC PUMPS OFF COMMAND (AOPS)AOP - 1 & 2 OFF COMMAND

SLC EOP ON COMMANDEOP ON COMMAND

IF FIRE PROTECTION - 2 PRESSEDSGC OIL SUPPLY OFF COMMANDSLC PUMPS OFF COMMAND (AOPS)AOP - 1 & 2 OFF COMMANDSLC EOP ON COMMANDEOP ON COMMANDSLC JOPS OFF COMMANDJOP - 1 & 2 OFF COMMANDSLC TURNING GEAR VALVE OFF COMMANDTURNING GEAR VALVE CLOSE COMMANDDCJOP ON COMMANDVACUUM BREAKER VALVE OPENS

FIRE PROTECTION

EFFECTS OF EXCESS OIL FLOW TO BEARINGS

PROBLEMS WITH MORE FLOW :

OVERLOAD OF AOP

ENDANGER DURING COASTING DOWN WITH EOP DUE TO LOW PRESSURE

EXCEEDING RETURN OIL PIPE CAPACITY

OIL LEAK FROM OIL GUARD

INCREASE IN NUMBER OF OIL CIRCULATION AFFECTING AIR RELEASE PROPERTY

LOW RETURN OIL TEMP. AFFECTING DEAERATION PROPERTY

BEARING LOSSES GET INCREASED

LUB OIL SYSTEM LOCAL CHECKS

MOT LEVEL LUB OIL FILTER CHOCKAGELUB OIL PRESSURE - HEADER AND DISCHARGELUB OIL TEMPERATURE - BEFORE & AFTER COOLERCENTRIFUGE PARAMETERSMOT SAMPLE POINT VALVERUNNING EQUIPMENTS HEALTHINESSBEARING RETURN OIL TEMPERATURESBEARING RETURN OIL FLOWABNORMAL SOUNDSOIL LEAKSLEAKAGE OIL TANK LEVELDIRTY OIL TANK LEVEL

FIRE PRECAUTION

FIRE EXTINGUISHERS - FOAM, DCP AND CO2

MULSIFIRE SPRAY SYSTEM IN MOT, OIL COOLER, OIL FILTER, CENTRIFUGE AND OIL CANAL

FIRE HYDRANT IN A ROW SIDE STAIRCASE

FIRE PROTECTION PUSH BUTTONS IN

- UCB BACK PANEL

- NEAR TURBINE GOVERNING RACK FRONT

- AT MOT ROOM ENTRY

GENERATOR SEAL OIL SYSTEM

THANK YOU