ROLE OF LUBRICANTS IN POWER SECTOR

RAYALASEEMA THERMAL POWER PROJECTAP GENCO

V.V.REDDY NAGAR/KADAPA(DIST),AP

Presented By

KODANDA PANI VUDUGUNDLAADE/TURBINE MAINTENANCE/STAGE-III

INSTALLED CAPACITY OF RTPPNAME Stage

no.Unit no. capacit

yDate of commissioning

RTPP,V V Reddy Nagar-516 312Yerraguntla(Mandal)KADAPA (Dt).

I Unit-IUnit-2

210 MW210 MW

31-03-199425-02-1995

II Unit-3Unit-4

210 MW210 MW

24.01.200717.04.2007

III Unit-5 210 MW

10.02.2011

IV Unit-6 600 MW

Under construction

BASIC LAYOUT OF 210MW TPP

MAIN PLANT EQUIPMENT IN TPP NEED LUBRICATION

BOLIER AUXILLARIES LIKE COAL MILLS,APH,PA FAN,FD FAN,ID FAN etcTURBINE AUXILLARIES LIKE MAINTURBINE BEARINGS,BFP,

CEP,ACWP,DMCWP AND CWP etcGENERATOR AUXILLARIES LIKE GENERATOR & EXCITOR BEARINGS

LUBRICATION OF POWER PLANT EQUIPMENT

NECESSITY OF LUBRICATIONTo reduce friction and wear between two

surfaces moving relative to one another To dissipates heat and act as cooling

mediaTo prevents rust or corrosion, acts as a

seal to outside contaminantsTo reduce force of friction there by

reduction in input energy

OILS USING IN TURBO GENERATOR SET SERVO PRIME-46 SERVO CONVAL-46 SERVO SYSTEM HLP-32FUNCTION OF SERVOPRIME-46 OIL LUBRICATION AND COOLING TURBINE BEARINGS JACKING UP TURBINE SHAFT DURING START UP AND SHUT

DOWN OF UNIT DRIVING HYDRAULIC TURNING MOTOR SUPPLYING CONTROL OIL TO GOVERNING SYSTEM SEALIN OIL TO GENERATOR H2 GASFUNCTION OF SERVOCONVAL-46 OIL ACT AS HYDRAULIC FLIUD TO OPERATE HP BYPASS SYSTEMFUNCTION OF SERVO SYSTEM HLP-32 OIL LUBRICATION TO TOTAL BOILER FEED PUMP SET HYDRAULIC COULPING

SERVOPRIME-46 IN MAIN TURBINE LUBRICATING SCHEME

TURBINE BEARING TEMPERATURES

SERVOPRIME-46 IN GENERATOR SEAL OIL SYSTEM

SCHEME OF LUB OIL AND WORKING OIL OF BOILER FEED PUMP SET(SERVO SYSTEM HLP-32 OIL IN HYDRAULIC COUPLING CHAMBER)

APPLICATION OF SERVOCONVAL-46 IN HIGH PRESSURE BYPASS SYSTEM

Turbine Oil SpecificationS.NO PROPERTIES VALUE

1 Kinematic Viscosity 41.4 – 50.6 cst2 VISCOSITY INDEX Min. 98

4SPECIFIC GRAVITY AT 50 DEG 0.85

5 FLASH POINT Min. 200°C6 POUR POINT - 6°C max.

7Total acidity after 1000 hrs. Oxidation

Max. 2.0 mg of KOH per gm. of oil

TURBINE OIL AS PER M/s BHEL RECOMENDATION

Oil of viscosity class ISO VG 46 shall be USEDThe oil shall be a petroleum product with or without

additives to meet the requirement of this standard.The finished oil shall be clear and free from water,

suspended matter, dirt, sediment and other impurities.

The turbine oil must be capable of withstanding bearing temperature of max. 130°C without physical and chemical degradation.

The properties of the oil shall not be affected by centrifuging or filtering

LUBRICANTS IN 210MW THERMAL POWER PLANT

SERVOPRIME-46SERVOPRIME-68SERVOSYTEM HLP-32SERVOMESH SP-320SERVOCYCLE C-680SERVOCONVAL-46SERVOSYSTEM-150SERVOSYSTEM-220SERVOSYSTEM-32SERVOMESH-SP-460SERVOSYSTEM-68SERVOMESH-680

Types of lubricants procuring from IOCL

THANK YOU