Document xjymz5GVkGgjGZXwrmb32wYrJ
S/T 3 ALARMS
SPEED:
THE SPEED HIGH ALARM WILL BE 3650 RPM FOR ALL THE TURBINE MODES EXCEPT STEP 9 (OVERSPEED TEST MODE) WHICH WILL BE 4050 RPM.
THERE WILL BE NO LOW ALARM DURING THE START-UP MODE. THE LOW ALARM IN STEPS 5, 6, 7, 8 AND 9 WILL BE 3550 RPM.
THE DIFFERENCE ALARM WILL BE ENABLED DURING ALL THE STEPS, EXCEPT 0 AND 1, AND WILL BE SET TO 10 RPM. THIS ALARM WILL BE ENABLED ONLY WHEN THE SPEED IS GREATER THAN 40 RPM. IT WILL WARN THE OPERATOR OF A POSSIBLE BAD SPEED PROBE.
THE SPEED/LOAD (S/L) SET POINT HIGH ALARM WILL BE DIVIDED INTO DIFFERENT CATEGORIES DEPENDING ON THE STEP IN WHICH THE TURBINE IS OPERATING. WHEN THE TURBINE IS IN THE START-UP MODE (STEPS 1 THROUGH 4), THE SYNCHRONIZATION PROCESS AND THE FREQUENCY CONTROL MODE (STEPS 5 AND 8, RESPECTIVELY) THE SP HIGH ALARM WILL BE 3610 RPM. WHEN THE TURBINE IS IN THE RUNNING MODE (STEPS 6 AND 7), THIS ALARM WILL BE SET AT 3780 RPM. AND FINALLY, WHEN THE TURBINE IS IN THE OVERSPEED MODE (STEP 9), THIS ALARM \ L BE SET TO 4000 RPM.
THERE WILL BE NO LOW SET POINT ALARM DURING THE START-UP MODE. THE LOW SP ALARM IN STEPS 5, 8 AND 9 WILL BE SET TO 3590 RPM. THE NORMAL RUNNING MODE SP LOW ALARM WILL BE SET TO 3605 RPM (STEPS 6 AND 7).
THE SET POINT/MEASURED VARIABLE (SP/MV) DEVIATION WILL BE ENABLED DURING ALL THE STEPS. THE PROGRAM WILL INCLUDE A 10-SECOND TIME DELAY.
THE SPEED/LOAD OUTPUT HIGH ALARM WILL BE SET TO 20% DURING STEPS 1 THROUGH 4 AND 100% DURING STEPS 5 THROUGH 9.
THE SPEED/LOAD OUTPUT LOW ALARM WILL BE SET TO 20% DURING STEPS 6 THROUGH 9. NO ALARM WILL BE REQUIRED DURING START-UP.
THE S/L SP HIGH/LOW, S/L SP/MV DEVIATION AND S/L OUTPUT HIGH/LOW ALARMS WILL NOT BE ENABLED UNLESS THE S/L CONTROLLER IS ON AUTOMATIC.
DO A 118208 CONFIDENTIAL
^ -># PRESSURE:
THE HIGH PRESSURE ALARM WILL COME IN AT 255# AND IT WILL BE ENABLED DURING ALL THE STEPS.
THE LOW PRESSURE ALARM WILL BE ENABLED ONLY DURING STEPS 6, 7 AND 8 AND WILL COME IN AT 230#.
THE PRESSURE DIFFERENCE WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 5#.
THE SP HIGH/LOW ALARMS WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 260# AND 225#, RESPECTIVELY.
THE SP/MV DEVIATION WILL ALSO BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 5#. THIS ALARM WILL HAVE A 10-SECOND TIME DELAY.
THE OUTPUT HIGH/LOW ALARMS WILL ALSO BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 100% AND 30%, RESPECTIVELY.
THE SP HIGH/LOW, SP/MV DEVIATION AND OUTPUT HIGH/LOW ALARMS WILL BE ENABLED ONLY IF THE 235# CONTROLLER IS ON AUTOMATIC.
CONDENSER VACUUM:
THE CONDENSER VACUUM (CV) HIGH ALARM WILL BE SET AT 24" HG ABSOLUTE DURING STARTUP (THE GENERATOR BREAKER IS OPEN DURING THIS PERIOD). THIS SET POINT WILL CHANGE TO 8" HG ABS. WHEN THE GENERATOR BREAKER CLOSES AND THE CV GOES BELOW 7" HG ABS.. THIS SET POINT WILL IN TURN CHANGE TO 4" HG ABS. WHEN THE CV DROPS BELOW 3.5" HG ABS. IF THE CV GOES BACK UP TO 7"HG ABS., THE HIGH HIGH ALARM WILL BE SET IN ADDITION TO THE HIGH ALARM.
THE CV LOW ALARM WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 0.5" HG ABS.
THE DIFFERENCE ALARM WILL ALSO BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 0.5" HG ABS.
THE SP HIGH/LOW ALARMS WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 22 AND 0.5" HG ABS., RESPECTIVELY.
THE SP/MV DEVIATION ALARM WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 0.5" HG ABS. THIS ALARM WILL HAVE A 10-SECOND TIME DELAY.
THE CONTROLLER OUTPUT HIGH/LOW ALARMS ARE ALSO ENABLED DURING ALL THE STEPS AND ARE SET TO 100% AND 0%, RESPECTIVELY.
A 118209 CONFIDENTIAL
THE SP HIGH/LOW, SP/MV DEVIATION AND OUTPUT HIGH/LOW ALARMS ARE ENABLED ONLY IF THE CONDENSER VACUUM CONTROLLER IS IN AUTOMATIC. ALARMS FOR THE HOGGER AND THE VACUUM BREAKER ARE NOT NEEDED.
SEAL STEAM:
THE SEAL STEAM (SS) HIGH ALARM WILL BE SET AT -1# DURING START-UP (STEPS 1 THROUGH 4) AND +7# WHILE THE TURBINE IS RUNNING (STEPS 5 THROUGH 9)
THE SS LOW ALARM WILL BE SET AT -4# DURING STEPS 1 THROUGH 4 AND +2.5# DURING STEPS 5 THROUGH 9.
THE SS DIFFERENCE ALARM WILL BE SET AT 0.5# AND WILL BE ENABLED DURING ALL THE STEPS.
THE SP HIGH/LOW ALARMS WILL BE SET AT +7.5 AND -7.5#, RESPECTIVELY AND WILL BE ENABLED DURING ALL THE STEPS.
THE SP/MV DEVIATION ALARM WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 0.5#. THIS ALARM WILL HAVE A 10-SECOND TIME DELAY.
THE SS CONTROLLER OUTPUT HIGH/LOW WILL BE SET TO 50% AND 0%, RESPECTIVELY DURING STEPS 1 THROUGH 4, AND 100% AND 0% DURING STEPS 5 THROUGH 9.
AGAIN, THE SP HIGH/LOW, SP/MV DEVIATION AND THE OUTPUT HIGH/LOW ALARMS ARE ENABLED ONLY WHEN THE CONTROLLER IS ON AUTOMATIC.
DIFFERENTIAL EXPANSION:
THE HIGH ALARM WILL BE SET AT +110 MILLS. THE LOW ALARM WILL BE SET AT -110 MILLS. THE DIFFERENCE ALARM WILL BE SET TO 10 MILLS. THE RATE OF CHANGE ALARM WILL BE SET TO 5 MILLS FOR EVERY 30 SECONDS. ALL OF THE ABOVE ALARMS WILL BE ENABLED DURING ALL THE STEPS.
SHELL EXPANSION:
THE HIGH ALARM WILL BE SET TO 650 MILLS. THE LOW ALARM WILL BE SET TO 150 MILLS. THE RATE OF CHANGE ALARM WILL BE SET TO 10 MILLS EVERY 30 SECONDS. THE ABOVE ALARMS WILL BE ENABLED DURING ALL THE STEPS.
00 A 118210 C0NFIDFNTI8L
/DENSER HOOD TEMPERATURE: THE HIGH ALARM WILL BE SET AT 300 DEG. F. AND WILL BE ACTIVE DURING ALL
THE STEPS. THERE WILL BE 2 ALARMS AT +/" 10* DEVIATION FROM A GIVEN SET POINT (250 DEG. F.) DURING STEPS 1 THROUGH 5. THESE TWO ALARMS WILL BE ENABLED ONLY WHEN THE HOOD TEMPERATURE REACHES THE REGION 225 - 275 DEG. F. VI UPPER:
THE HIGH ALARM WILL BE 20% DURING START-UP AND 100% WHILE RUNNING. THE LOW ALARM WILL BE 10% WHILE RUNNING. THE DIFFERENCE ALARM WILL BE SET AT 5 AND WILL BE ENABLED IN ALL STEPS. THE DIFFERENCE ALARM WILL HAVE A 1SECOND TIME DELAY. VI LOWER:
THE DIFFERENCE WILL BE SET TO 5 AND WILL BE ENABLED IN ALL STEPS. THIS ALARM WILL ALSO HAVE A 1-SECOND TIME DELAY. V2: --
THE HIGH ALARM WILL BE 20% DURING START-UP AND 100% WHILE RUNNING. THE LOW ALARM WILL BE 10% WHILE RUNNING. THE DIFFERENCE WILL BE SET TO 5 AND WILL BE ENABLED IN ALL STEPS. THE DIFFERENCE ALARM WILL HAVE A 1-SECOND TIME DELAY. SmEP ALARMS:
THE FOLLOWING ALARMS WILL OCCUR DURING START-UP BEFORE STEPS 2, 3, 4 AND 5: READY TO ROLL, SLOW ROLL PAUSE, ENERGIZE FIELD PAUSE AND READY TO SYNCHRONIZE, RESPECTIVELY. BUSS #3 SYN BUSS BREAKER OPEN:
THIS ALARM WILL BE ENABLED AS SOON AS THE GENERATOR BREAKER CLOSES (AFTER STEP 5). #3 NEUTRAL BREAKER CLOSING FAILURE ALARM:
THIS ALARM WILL BE ENABLED IN STEP 4 WHEN THE TURBINE REACHES 3200 RPM.
DO A 118211 CONFIDENTIAL
FIELD FLASHING FAILURE ALARM: THIS ALARM WILL BE ENABLED AS SOON AS #3 NEUTRAL BREAKER IS CLOSED IN
STEP 4. TURNING GEAR FAILURE ALARM:
THIS ALARM WILL BE ENABLED IN STEP 0 AND WILL COME IN IF THE SPEED GOES BELOW 1 RPM OR ABOVE 2 RPM. TURNING GEAR MOTOR TRIP DUE TO LOW BEARING OIL PRESSURE:
THIS ALARM WILL BE ENABLED AS SOON THE TRISEN SENDS A DIGITAL OUTPUT TO START THE TURNING GEAR MOTOR. THE ALARM WILL COME IN IF THE BEARING OIL PRESSURE DROPS BELOW A SET POINT (8 PSIG). TURNING GEAR MOTOR FAILED TO START:
THIS ALARM WILL BE ENABLED 5 SECONDS AFTER THE TRISEN SENDS A DIGITAL OUTPUT TO START THE TURNING GEAR MOTOR. IF SPEED IS NOT DETECTED THROUGH THE TURNING GEAR MOTOR SPEED PROBE, THE ALARM WILL COME IN. LOSS OF A SPEED PROBE:
THERE WILL BE 5 ALARMS, ONE FOR EACH SPEED PROBE. THESE ALARMS WILL BE ] BLED AS SOON AS THE SELECTED SPEED GOES ABOVE 40 RPM. EACH ALARM WILL CuME IN WHEN THE DIFFERENCE BETWEEN A SPEED PROBE AND THE SELECTED SPEED IS 5 RPM. LOSS OF ALL TURBINE SPEED PROBES:
THIS ALARM WILL BE ENABLED AS SOON AS THE SELECTED SPEED GOES ABOVE 40 RPM. CONTROLLER AUTO/MANUAL ALARMS:
AN ALARM WILL COME IN WHEN A CONTROLLER (SPEED/LOAD, 235# PRESSURE, SEAL STEAM, CONDENSER VACUUM AND CONDENSER HOOD TEMPERATURE) GOES FROM AUTO TO MANUAL OR VICE VERSA.
DO A 11821? CONFIDENTIAL
ANT MASTER CHANGES WITH PERMTSSIVES NOT GRANTED
STEAM PRESSURE AND DEPRESSURE FAILURE: THESE 2 ALARMS WILL BE ENABLED DURING STEP 1 ONLY IF THE WARM-UP IS
DONE AUTOMATICALLY. TRIP ALARMS:
THE FOLLOWING TRIP ALARMS WILL BE ENABLED DURING STEP 1 THROUGH STEP 9: ELECTRONIC OVERSPEED, STOP VALVE HYDRAULIC OIL PRESSURE, LOW BEARING OIL PRESSURE, CONDENSER HIGH PRESSURE, SPEED INCREASE DURING WARM-UP, FRONT STANDARD, VIBRATION, THRUST, STOP PUSHBUTTON, EMERGENCY TRIP, BEARING TEMPERATURE,PROTECTIVE RELAY. HYDRAULIC OIL PRESSURE;
THE LOW HYDRAULIC OIL ALARM WILL BE ENABLED DURING ALL THE STEPS EXCEPT DURING STEPS 0 AND 1 (WARM-UP STEP). THE DIFFERENCE ALARM WILL BE ENABLED DURING ALL THE STEPS AND WILL BE SET TO 10#. BEARING OIL DIFFERENCE ALARM:
THIS ALARM WILL BE ENABLED IN ALL STEPS AND WILL BE SET TO 3#. TkIP COIL BAD:
THIS ALARM WILL BE ENABLED WHEN THE TRIP COIL MONITOR FAILS. TRISEN TS30Q0 TROUBLE ALARM:
THIS ALARM WILL BE ENABLED WHEN A POWER SUPPLY, A TRISEN HARDWARE RACK OR A MAIN PROCESSORS GOES BAD. FIRST STAGE PRESSURE ALARM DURING WARMUP:
THIS ALARM WILL BE ENABLED ONLY DURING THE WARMUP STEP. IT WILL COMPARE THE MEASURED FIRST STAGE PRESSURE TO THE SET POINT AND WILL ALARM WHEN THE MEASURED VALUE EXCEEDS THE SET POINT.
Do A 118213 CONFIDENTIAL
ST3 ALARM SETTINGS
SPEED / LOAD CONTROLLER;
HIGH LOW DIFFERENCE SP HIGH
SP LOW
DEVIATION OUTPUT HIGH OUTPUT LOW
STEPS 1-8 STEP 9
STEPS 6-9 STEPS 2-9 STEPS 1-4 STEPS 5,8 STEPS 6,7 STEP 9 STEPS 5,8 STEPS 6-7 STEPS 9 STEPS 1-9 STEPS 1-4 STEPS 5-9 STEPS 6-9
ALARMRESETALARM/PRINT
3650
3640
A/P
4050
4040
A/P
3550
3560
A/P
10 8
A/P
3610
3605
P
3610
3605
P
3780
3775
P
4000
3995
P
3590
3595
A/P
3605
3610
A/P
3590
3595
A/P
10 8
A/P
20 18
P
100 98
P
20 22
P
235# EXT./ADM. CONTROLLER:
H LuW
DIFFERENCE SP HIGH SP LOW DEVIATION OUTPUT HIGH OUTPUT LOW
STEPS 1-9 STEPS 6-8 STEPS 1-9 STEPS 1-9 STEPS 1-9 STEPS 1-9 STEPS 1-9 STEPS 1-9
ALARM 255 230 5 260 225 5 100 30
RESET 250 233 3 255 230 4 98 32
ALARM/PRINT A/P A/P A/P P P A/P P P
00 A 118214 confidential
AL STEAM CONTROTJ.ER:
HIGH
LOW
DIFFERENCE SP HIGH SP LOW DEVIATION OUTPUT HIGH
OUTPUT LOW
STEPS STEPS STEPS STEPS STEPS STEPS STEPS STEPS STEPS STEPS STEPS
1-4 5-9 1-4 5-9 1-9 1-9 1-9 1-9 1-4 5-9 1-9
ALARM -1 7 -4 2.5 0.5 7.5 -7.5 0.5 50 100 0
CONDENSER VACUUM CONTROLLER t
HIGH
STEPS 1-4 STEPS 6-9
T
. .'FERENCE SP HIGH SP LOW DEVIATION OUTPUT HIGH OUTPUT LOW
STEPS STEPS STEPS STEPS STEPS STEPS STEPS
1-9 1-9 1-9 1-9 1-9 1-9 1-9
ALARM 24 8
A
0.5 0.5 22 0.5 0.5 100 0
VI UPPER VALVE ALARMS:
HIGH
LOW DIFFERENCE
STEPS STEPS STEPS STEPS
1-5 6-9 6-9 1-9
ALARM 20 100 10 5
RESET -1.5 6.5 -3.5 2.6 0.4 7 -7 0.4 49 98 1
-
ALARM/PRINT A/P A/P A/P A/P A/P P P A/P P P P
RESET___________ ALARM/PRINT
21 P
6P
3.5 P
0.7 A/P
0.3 A/P
21.5
A/P
0.7 P
0.4 A/P
98 P
2 A/P
RESET 18 98 12 3
ALARM/PRINT P P P A/P
DO A 118215
confidential
LOWER VALVE ALARMS DIFFERENCE STEPS 1-9
ALARM 5
V2 VALVE ALARMS:
HIGH
LOW DIFFERENCE
STEPS 1-5 STEPS 6-9 STEPS 6-9 STEPS 1-9
ALARM 20 100 10 5
DIFFERENTIAL EXPANSION ALARMS:
HIGH LOW
DIFFERENCE RATEOFCHANGE
STEPS STEPS STEPS STEPS
1-9 1-9 1-9 1-9
ALARM 110
-110 10 5
RESET 3
ALARM/PRINT A/P
RESET 18 98 12 3
ALARM/PRINT P P P A/P
RESET 108
-108 8 4.5
ALARM/PRINT P A/P A/P A/P
SHELL EXPANSION ALARMS:
HIGH
STEPS 1-9
LOW
STEPS 1-9
RATEOFCHANGE STEPS 1-9
ALARM 650 150 10
CONDENSER HOOD TEMPERATURE ALARMS:
HIGH
STEPS 1-9
+10%DEVIATION STEPS 1-5
-10%DEVIATION STEPS 1-5
ALARM 300 275 225
RESET 640 140 9.5
RESET 290 250 250
ALARM/PRINT A/P A/P A/P
ALARM/PRINT A/P A/P A/P
DO A 118216 CONFIDENTIAL