TG turbine

T-G SPECIFICATIONS

O/P 225OO KVANO OF PHASES 3NO OF POLES 4VOLTAGE 11 KVCURRENT 1181FREQUENCY 50 HZSPEED 1500 RPMP.F 0.9RATING CONTEXCITATION VOLT 244 VFIELD CURRENT 452CLASS OF INSULATION: ARMATURE: F FIELD: F

150 c

-0.2 k/c2

0.2 k/c2

1.1 k/c2

Gland sealing steam

25k/c2

Va

po

r in

To

c

on

de

ns

er

GVC TG

To Condenser

EJECTOR TG

TO CONDENSER

START UP IJECTOR

condensate

vapor

steam

ejector

FROM CONDENSER

46

TO PDM

TG GOVERNER

Make GE MDT 80

TYPE ELECTRONIC SPEED CONTROL

Speed regulation 0 to 5 % droop

Speed control range 0 to 105 % of rated

Speed setting accuracy +- 0.1 % of rated

Pressure regulation 0 to 10 % of droop

Pressure control range 0.85 to 1.15 % of rated

Pressure setting accuracy +- 2 % of rated

Hydraulic pr 200 +- 5 psig

Bearing pr Turbine 21 +- 2 psig

All setting to be made at Oil temp to bearing 110 to 120 of

Sr no

Parameter

1 LUB OIL PR LOW AA1 1 K/C2

2 LUB OIL PR LOW AA2 0.8 K/C2

3 CONTRO OIL PR LOW ALARM AA3 10 K/C2

4 ACROSS FILTER DP LOW AA4 1 K/C2

5 LUB OIL TANK LEVEL LOW AA5 13 INCH

1 INCH

6 LUB OIL TEMP HIGH AA6 42 59

7 RTD FAULTY OR SUPPLY FAILS AA7

8 BEARING OR WINDING TEMP HIGH AA8 51/65 75/95

9 BEARING OR WINDING TEMP VERY HIGH

AA9 80 130

10 RTD FAULTY OR FAIL AA10

11 BEARING TEMP HIGH AA11 120

12 BEARING TEMP VERY HIGH AA12 130

13 TRANSDUCER FAULTY OR SUPPLY FAILS

AA13

14 AXIAL DISPLACEMENT HIGH AA14 15/18 MILS 20 MILS

15 AXIAL DISPLACEMENT IS VERY HIGH TURBINE TRIPS

AA15 28 MILS

16 TG SET VIBRATION HIGH AA16 Alarm-3.6/3.4/1.4/2.4/3.6/4 mils

TG ALARMS AND TRIPPING

Sr no

Parameter

17 TG SET VIBRATION VERY HIGH TURBINE TRIPS

AA17 4.8/4.8/2.6/4.6/4.5/4.8 mils

18 2 SPEED PICK FAIL TURBINE TRIPS AA18

19 OVER SPEED TURBINE TRIPS AA19

20 GCPS 1 FAILS MAINTENANCE REQUIRED ALARM

AA20

21 SPEED PICK UP-1 FAILS MAINTENANCE REQUIRED ALARM

AA21

22 TURBINE RUNNING BELOW 4 RPM TO START THE BARRING GEAR

AA22

23 ABOVE 110% SP TURBINE RUNNING HSS

AA23

24 LOAD CONTROL AA24

25 EXHAUST PRESSURE VERY HIGH TURBINE TRIP-

AA25 0.55KG/CM2 OR 40.85 CM HG (VACUUM)

26 INLET STEAM TEMPERATURE VERY LOW TURBINE TRIP

AA26 365*C

27 TURBINE INLET CLOSED BELOW COOLING LIMIT

AA27

28 TURBINE SIXTH STAGE TEMPERATURE HIGH ALARM/TIPPING –

AA28 260/370 *C

29 TURBINE TRIP DUE TO ELECTRICAL FAULT

AA29

TG ALARMS AND TRIPPING

Sr no Parameter

30 EXHAUST PRESSURE HIGH AA30

31 MANUAL TRIP ALARM AA31

32 AA32

33 INLET STEAM TEMP LOW AA33 430

34 1ST EXTRACTION PR HIGH AA34 10 K/C2 SV 10.7 K/C2

35 1ST EXTRACTION PR VERY HIGH AA35 11.5 K/C2

36 II ND EXTRACTION PR HIGH AA36 4.6 K/C2 SV 4.7

37 II ND EXTRACTION PR VERY HIGH AA37 5.0 K/C2

38 EXHAUST TEMP ALARM AA38 80 0C

39 INLET STEAM PR LOW ALARM AA39 70 K/C2

40 MAIN STEAM PR LOW ALARM AA 40 74 K/C2

41 Inlet Steam Temperature Very Low AA41 365 OC

42 Ist Ext. Press. Low after NRV AA42

43 IInd Ext. Press. Low after NRV AA43

44 AA44

45 Exhaust Hood Temperature High AA45 80 *C

46 86G Or HT Panel Breaker Trip (Electrical Fault)

AA46

47 SLIT Or HT Panel breaker Trip Process Fault

AA47

TG ALARMS AND TRIPPING

Sr no Parameter

48 Hot Air Temperature High AA 48 (39/45 *C) 75/80 *C

49 Hot Well Level Low AA 49 70% 40%

50 Hot Well Level Very Low AA 50 35%

51 Hot Well Level High AA 51

52 AA 52

53 CW Inlet Pressure Low AA 53 1.5 Kg/cm2 0.9 Kg/cm2

54 Ist Extraction Temperature High(After DSS)250 *C

AA 54 250 *C

55 IInd Extraction Temperature High AA 55 150 *C

56 Ist Ext. Press. High Before NRV AA 56

57 IInd Ext. Press. High Before NRV AA 57

58 Ist Ext. Steam Temperature Low AA 58

59 IInd Ext. Steam Temperature Low AA 59

60 SLIT 502 (Turbine Trip) AA 60

TG ALARMS AND TRIPPING

Sr no

Parameter O V Unit ALARM

LAOD (MW) 8.7

SPEED (RPM) 8000

STEAM PRESSURE(K/C2)

MAIN ST PRESSURE 85

IST EXTR PRESSRE 10

II ND EXTR 3

EXHAUST STEAM 1/09

STEAM TEMPERATURES (OC)

MAIN STEAM 470

IST EXTR 270

II ND EXTR 194

EXHAUST STEAM 40

LUBE OIL PRESSURE (K/C2) 1.55/1.35

CONTROL OIL PRESSURE (K/C2)

14/12.8

FLOW (TON/HR)

MAIN STEAM 85

IST EXTR 28

II ND EXTR 35

CONDENSER 9

Sr no

Parameter O V Alarm

Trip

BEARINGTEMPERATURES (OC)

TURBINE JOURNEL

HP BEARING 80/71(9)

LP BEARING 82/79

TURBINE THURST + VE 70/67

68/66(8)

TURBINE THURST -VE 55/53

51/54

GEAR BOX

PINION TURBINE END 84/87

PINION ALTERNATOR END 79/81

GEAR WHEEL TURBINE END 60/61

GEAR WHEEL ALTERNATOR END 70/67(3)

GENERATOR TURBINE END 50/51

GENERATOR ALTERNATOR END 50/49

ROTOR AXIAL POSITION (MILLS) 17/19

VIBRATIONS( MILS) VER / HZT

TURBINE HP BEARING 1.2/0.9

TURBINE LP BEARING 2.2/2.5

GEAR PINION TURBINE END 4.5/4.0

GEAR PINION ALT END 4/4

GENERATOR 2.5/3.6

2.2/2.1

TG

OP

ER

AT

ING

P

AR

AM

ET

ER

S

Sr no

Parameter

(TEMP – OC AND PRESSURE- K/C2)

O V Unit

ALARM

CONDENSER LEVEL 70 5

GEAR BOX OIL TEMP (0C) 70

VACUUM 70

IST EXTR DESUP TEMP.(OC) 257

CONDENSATE PUMP PR(K/C2) 4.25

COND. PUMP LOAD (AMPS) 22

CW PR COND. INLET (K/C2) 1.2

CW PR COND. OUTLET (K/C2

CW TEMP IN TO LUB OIL COOLER

22

CW TEMP OUT TO LUB OIL COOLER

30

MOP DISCH OIL PR 0.25/13.7

BEARING OIL DRAIN TEMP 61/63

LUB OIL COOLER OUTLET 40

COND CW OUTLET TEMP 25

TURBINE 6 TH STAGE TEMP 215

I ST STAGE SHELL PR 46

GLAND STEAM PRESSURE 0.45

VANE 1 1.5

VANE 2 13/8

VANE 3 3/4

Sr no

Parameter O V Alarm

Trip

PRIMARY EJET STEAM PR 40

SECONDARY EJECT. STEAM PR 40

PRIMARY EJECT VACUUM (MMHG)

700

SEC.EJECT. VACUUM(MMHG) 570

COND OUTLET TEMP 42

COND VACUUM AT GVC MMHG 0.15

COND TEMP AT GVC 150

TG

OP

ER

AT

ING

P

AR

AM

ET

ER

S

Sr no

Parameter

(TEMP – OC AND PRESSURE- K/C2)

Low lub oil pr alarm 1.0

Very low lub oil trip switch 0.8

Low control oil pressure alarm 10

1 st ext steam pr high alarm 10

2nd ext steam pressure high alarm 4.6

1st ext pr very high trip switch 11.5

2nd ext steam pressure very high trip switch

5

Lub oil pr drop across the filter alarm

5 psi

Barring gear interlock with low lub oil pressure

0.8

Exhaust hood very low vacuum trip 0.55

AOP auto start 11

Gear oil pump start indication 10

EOP Steam driven start indication 10

AC driven oil pump start indication 10

EOP auto start 10

Lub oil temperature alarm 59

Exh hood high temperature alarm

Sr no

Parameter

SAFETY RELIEF VALVE SETTINGS

1ST EXTRACTION SAFETY V/V 10.7 2 NOS

2ND EXT SAFETY V/V 3.7 2 NOS

LUB OIL SAFETY V/V 2.4

CONTROL OIL SAFETY V/V 15.5 & 17

EXH HOOD SENTINEL RELIEF 5 PSI

STEAM SEAL LINE RELIEF 15 PSI

CONDENSER SAFERTY V/V 5 PSI

JOURNEL BEARING TEMP ALARM 250 OF 121 OC

JOURNEL BEARING TEMP HIGH TRIP

275 OF 135 OC

TRUST BEARING TEMP HIGH 275 OF 135 OC

THRUST BEARING TEMP HIGH TRIP

300 OF 148 OC

VIBRATION PROBES ALARM 3.5 MILS

TRIP 5.0 MILS

ROTOR POSTION PROBE AL -10 MILLS

TRIP 20 MILS

CRITICAL SPEED 1ST 1900

CRITICAL SPEED 2ND 4800

ELECT GOVER./ TRIP 8606

MECH TRIPIING 8890

TG

OP

ER

AT

ING

A

LR

MS

TG LUB OIL SYSTEM

LOC

F

HP

& T

HR

US

T

LP

BE

AR

ING

GE

AR

BO

X

AL

T T

EN

D

AL

T A

EN

D

V 1,2,3G

MOP

EOP

AOP

LOC LOC

1.4 LUB

14 CONTROL

EOP (Emergency oil pump) (Steam Driven) Make :Triveni

Mather and Platt

M3 /HR :78 Head (m) :206 RPM :2975 Inlet steam pr. :46 42 Inlet st. Temp. :410 405) Exh. Pr.(kg/cm2 :03 RPM :2930 KW :75 Over speed trip :3345 Exh. Relief (kg/c2) :3.5 Ist critical speed :7400

AOP (Auxiliary oil pump) (Electric Driven) Motor KW :75 Rpm :2960 Current :124 amps

Condensate Extraction pump

Make :KSBType :CPK 60 MM3 /HR :50HEAD (M) :50RPM :1440

Motor

KW(HP) :15 (20)RPM :1455AMPS :29

LUBE OIL FILTERFul flow commercial filtersModel :hsf 19-3-4Max design operating pressure:300 psi at 200 oF