specifications governor alarms & tripping operation parameters operating alarms lube oil system

1. TG turbine

2. T-G SPECIFICATIONS
O/P 225OO KVA
NO OF PHASES 3
NO OF POLES 4
VOLTAGE 11 KV
CURRENT 1181
FREQUENCY 50 HZ
SPEED 1500 RPM
P.F 0.9
RATING CONT
EXCITATION VOLT 244 V
FIELD CURRENT 452
CLASS OF INSULATION: ARMATURE: F
FIELD: F

3. GVC TG
0.2
To condenser
k/c2
-0.2
k/c2
150 c
Vapor in
1.1
k/c2
Gland sealing
steam
25
k/c2 To Condenser

4. EJECTOR TG
FROM CONDENSER TO PDM
START UP
IJECTOR
TO CONDENSER
condensate
vapor
46 steam
ejector

5. 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

6. TG ALARMS AND TRIPPING
Sr Parameter
no
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 AA9 80 130
HIGH
10 RTD FAULTY OR FAIL AA10
11 BEARING TEMP HIGH AA11 120
12 BEARING TEMP VERY HIGH AA12 130
13 TRANSDUCER FAULTY OR SUPPLY AA13
FAILS
14 AXIAL DISPLACEMENT HIGH AA14 15/18 MILS 20 MILS
15 AXIAL DISPLACEMENT IS VERY AA15 28 MILS
HIGH TURBINE TRIPS
16 TG SET VIBRATION HIGH AA16 Alarm-
3.6/3.4/1.4/2.4/3.
6/4 mils

7. TG ALARMS AND TRIPPING
Sr Parameter
no
17 TG SET VIBRATION VERY HIGH AA17 4.8/4.8/2.6/4.6/4.
TURBINE TRIPS 5/4.8 mils
18 2 SPEED PICK FAIL TURBINE TRIPS AA18
19 OVER SPEED TURBINE TRIPS AA19
20 GCPS 1 FAILS MAINTENANCE AA20
REQUIRED ALARM
21 SPEED PICK UP-1 FAILS AA21
MAINTENANCE REQUIRED ALARM
22 TURBINE RUNNING BELOW 4 RPM AA22
TO START THE BARRING GEAR
23 ABOVE 110% SP TURBINE RUNNING AA23
HSS
24 LOAD CONTROL AA24
25 EXHAUST PRESSURE VERY HIGH AA25 0.55KG/CM2 OR
TURBINE TRIP- 40.85 CM HG
(VACUUM)
26 INLET STEAM TEMPERATURE VERY AA26 365*C
LOW TURBINE TRIP
27 TURBINE INLET CLOSED BELOW AA27
COOLING LIMIT
28 TURBINE SIXTH STAGE AA28 260/370 *C
TEMPERATURE HIGH
ALARM/TIPPING –
29 TURBINE TRIP DUE TO ELECTRICAL AA29
FAULT

8. 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 AA46
(Electrical Fault)
47 SLIT Or HT Panel breaker Trip AA47
Process Fault

9. 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 AA 54 250 *C
DSS)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

10. Sr Parameter OV Unit ALARM Sr Parameter OV Alar Trip
no no m
BEARINGTEMPERATURES (OC)
LAOD (MW) 8.7
TURBINE JOURNEL
TG OPERATING PARAMETERS
SPEED (RPM) 8000
HP BEARING 80/71(9)
STEAM PRESSURE(K/C2)
LP BEARING 82/79
MAIN ST PRESSURE 85
TURBINE THURST + VE 70/67
IST EXTR PRESSRE 10 68/66(8)
II ND EXTR 3 TURBINE THURST -VE 55/53
51/54
EXHAUST STEAM 1/09
GEAR BOX
STEAM TEMPERATURES (OC)
PINION TURBINE END 84/87
MAIN STEAM 470
PINION ALTERNATOR END 79/81
IST EXTR 270
GEAR WHEEL TURBINE END 60/61
II ND EXTR 194 GEAR WHEEL ALTERNATOR END 70/67(3)
EXHAUST STEAM 40 GENERATOR TURBINE END 50/51
LUBE OIL PRESSURE (K/C2) 1.55/1. GENERATOR ALTERNATOR END 50/49
35
ROTOR AXIAL POSITION (MILLS) 17/19
CONTROL OIL PRESSURE 14/12. VIBRATIONS( MILS) VER / HZT
(K/C2) 8
TURBINE HP BEARING 1.2/0.9
FLOW (TON/HR)
TURBINE LP BEARING 2.2/2.5
MAIN STEAM 85
GEAR PINION TURBINE END 4.5/4.0
IST EXTR 28
GEAR PINION ALT END 4/4
II ND EXTR 35
GENERATOR 2.5/3.6
CONDENSER 9 2.2/2.1

11. Sr Parameter OV U ALARM Sr Parameter OV Alar Trip
no (TEMP – OC AND PRESSURE- nit no m
K/C2)
PRIMARY EJET STEAM PR 40
CONDENSER LEVEL 70 5
SECONDARY EJECT. STEAM PR 40
TG OPERATING PARAMETERS
GEAR BOX OIL TEMP (0C) 70
PRIMARY EJECT VACUUM 700
VACUUM 70 (MMHG)
IST EXTR DESUP TEMP.(OC) 257 SEC.EJECT. VACUUM(MMHG) 570
CONDENSATE PUMP PR(K/C2) 4.25 COND OUTLET TEMP 42
COND. PUMP LOAD (AMPS) 22 COND VACUUM AT GVC MMHG 0.15
CW PR COND. INLET (K/C2) 1.2 COND TEMP AT GVC 150
CW PR COND. OUTLET (K/C2
CW TEMP IN TO LUB OIL 22
COOLER
CW TEMP OUT TO LUB OIL 30
COOLER
MOP DISCH OIL PR 0.25/1
3.7
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

12. Sr Parameter Sr Parameter
no (TEMP – OC AND PRESSURE- no
K/C2)
SAFETY RELIEF VALVE
Low lub oil pr alarm 1.0 SETTINGS
TG OPERATING ALRMS
Very low lub oil trip switch 0.8 1ST EXTRACTION SAFETY V/V 10.7 2 NOS
Low control oil pressure alarm 10 2ND EXT SAFETY V/V 3.7 2 NOS
1 st ext steam pr high alarm 10 LUB OIL SAFETY V/V 2.4
2nd ext steam pressure high alarm 4.6 CONTROL OIL SAFETY V/V 15.5 & 17
1st ext pr very high trip switch 11.5 EXH HOOD SENTINEL RELIEF 5 PSI
2nd ext steam pressure very high trip 5 STEAM SEAL LINE RELIEF 15 PSI
switch
CONDENSER SAFERTY V/V 5 PSI
Lub oil pr drop across the filter 5 psi
alarm JOURNEL BEARING TEMP ALARM 250 OF 121 OC
Barring gear interlock with low lub 0.8
oil pressure JOURNEL BEARING TEMP HIGH 275 OF 135 OC
TRIP
Exhaust hood very low vacuum trip 0.55
TRUST BEARING TEMP HIGH 275 OF 135 OC
AOP auto start 11
THRUST BEARING TEMP HIGH 300 OF 148 OC
Gear oil pump start indication 10 TRIP
VIBRATION PROBES ALARM TRIP 5.0
EOP Steam driven start indication 10
3.5 MILS MILS
AC driven oil pump start indication 10
EOP auto start 10 ROTOR POSTION PROBE AL -10 TRIP 20
MILLS MILS
Lub oil temperature alarm 59
CRITICAL SPEED 1ST 1900
Exh hood high temperature alarm
CRITICAL SPEED 2ND 4800
ELECT GOVER./ TRIP 8606
MECH TRIPIING 8890

13. TG LUB OIL SYSTEM
GEAR BOX
ALT A END
HP & THRUST
ALT T END
LP BEARING
MOP
1.4 LUB V 1,2,3
G
14 CONTROL
EOP
LOC LOC LOC
AOP
F

14. EOP (Emergency oil pump)
Condensate Extraction pump
(Steam Driven)
Make :Triveni
Make :KSB
Mather and Platt
Type :CPK 60 M
M3 /HR :50
M3 /HR :78
HEAD (M) :50
Head (m) :206
RPM :1440
RPM :2975
Inlet steam pr. :46 42
Motor
Inlet st. Temp. :410 405)
Exh. Pr.(kg/cm2
KW(HP) :15 (20)
:03
RPM :1455
RPM :2930
AMPS :29
KW :75
Over speed trip :3345
LUBE OIL FILTER
Exh. Relief (kg/c2) :3.5
Ful flow commercial filters
Ist critical speed :7400
Model :hsf 19-3-4
Max design
AOP (Auxiliary oil pump)
operating pressure:
(Electric Driven)
300 psi at 200 oF
Motor KW :75
Rpm :2960
Current :124 amps