IMPORTANT LUBRICANTS AND ITS USAGES IN 210MW STEAM TURBINE

1. RAYALASEEMA THERMAL POWER PROJECT
AP GENCO
V.V.REDDY NAGAR/KADAPA(DIST),AP

2. INSTALLED CAPACITY OF RTPP
NAME Stage no. Unit no. capacity Date of commissioning
RTPP,
V V Reddy Nagar-
516 312
Yerraguntla(Mandal)
KADAPA (Dt).
I Unit-I
Unit-2
210 MW
210 MW
31-03-1994
25-02-1995
II Unit-3
Unit-4
210 MW
210 MW
24.01.2007
17.04.2007
III Unit-5 210 MW 10.02.2011
IV Unit-6 600 MW Under construction

3. BASIC LAYOUT OF 210MW TPP

4. MAIN PLANT EQUIPMENT IN TPP
NEED LUBRICATION
 BOLIER AUXILLARIES LIKE
COAL MILLS,APH,PA FAN,FD FAN,ID FAN etc
 TURBINE AUXILLARIES LIKE
MAINTURBINE BEARINGS,BFP, CEP,ACWP,DMCWP
AND CWP etc
 GENERATOR AUXILLARIES LIKE
GENERATOR & EXCITOR BEARINGS

5. LUBRICATION OF POWER PLANT EQUIPMENT
NECESSITY OF LUBRICATION
 To reduce friction and wear between two surfaces
moving relative to one another
 To dissipates heat and act as cooling media
 To prevents rust or corrosion, acts as a seal to
outside contaminants
 To reduce force of friction there by reduction in
input energy

10. OILS USING IN TURBO GENERATOR SET
 SERVO PRIME-46
 SERVO CONVAL-46
 SERVO SYSTEM HLP-32
FUNCTION 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 GAS
FUNCTION OF SERVOCONVAL-46 OIL
 ACT AS HYDRAULIC FLIUD TO OPERATE HP BYPASS SYSTEM
FUNCTION OF SERVO SYSTEM HLP-32 OIL
 LUBRICATION TO TOTAL BOILER FEED PUMP SET
 HYDRAULIC COULPING

11. SERVOPRIME-46 IN MAIN TURBINE LUBRICATING SCHEME

12. TURBINE BEARING TEMPERATURES

13. SERVOPRIME-46 IN GENERATOR SEAL OIL SYSTEM

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

15. APPLICATION OF SERVOCONVAL-46 IN HIGH PRESSURE BYPASS SYSTEM

16. Turbine Oil Specification
S.NO PROPERTIES VALUE
1 Kinematic Viscosity 41.4 – 50.6 cst
2 VISCOSITY INDEX Min. 98
4
SPECIFIC GRAVITY AT
50 DEG 0.85
5 FLASH POINT Min. 200°C
6 POUR POINT - 6°C max.
7
Total acidity after
1000 hrs. Oxidation
Max. 2.0 mg of KOH
per gm. of oil

17. TURBINE OIL AS PER M/s BHEL
RECOMENDATION
 Oil of viscosity class ISO VG 46 shall be USED
 The 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

18. LUBRICANTSIN210MWTHERMALPOWER PLANT

19.  SERVOPRIME-46
 SERVOPRIME-68
 SERVOSYTEM HLP-32
 SERVOMESH SP-320
 SERVOCYCLE C-680
 SERVOCONVAL-46
 SERVOSYSTEM-150
 SERVOSYSTEM-220
 SERVOSYSTEM-32
 SERVOMESH-SP-460
 SERVOSYSTEM-68
 SERVOMESH-680
Types of lubricants procuring from IOCL

20. THANK YOU