GT Trips List (Generic)

SIZE

B

DWG. NO.

SH.

401B3661

1

REV.

REVISIONS

REV

DESCRIPTION

IssuedBy

DATE

REVISE ON VISIO ONLY VISIO DRAWING : 401B3661SH1

-

-

-

-

-

-

-

-

-

-

-

-

-

REV

13

12

11

10

9

8

7

6

5

4

3

2

1

SH

REV STATUS OF SHEETS

BOM ISSUED

C

THIRD ANGLE PROJECTION

COPYRIGHT 2008

DIMENSIONS ARE IN INCHES TOLERANCES ON 2 PL DECIMALS ± 3 PL DECIMALS ± ANGLES ± FRACTIONS ±

GENERAL ELECTRIC COMPANY

PROPRIETARY INFORMATION-THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF GENERAL ELECTRIC COMPANY AND MAY NOT BE USED OR DISCLOSED TO OTHERS, EXCEPT WITH THE WRITTEN PERMISSION OF GENERAL ELECTRIC COMPANY.

RAGHU GUDA. CHECKED DURGA NALLAMOTTU ENGRG DURGA NALLAMOTTU ISSUED KERRIE LOKENBERG

DATE 08-11-12

g


GE Energy Products

08-11-12 08-11-12

9FA – TRIP LIST

08-11-12

0476

FIRST MADE FOR: --------

APPLIED PRACTICES

SIZE

B SCALE

SIM TO: 0

DT-1N

SIGNATURES DRAWN

CAGE CODE

DWG NO

401B3661 SHEET

1 of 13

0

UNLESS OTHERWISE SPECIFIED

SIZE

PROTECTIVE FUNCTION TURBINE TRIPs VIBRATION

GT Vibration Sensor Fault

SIGNAL NAME

L39VT

TYPE

PROTECTIVE STATUS 2

DESIGN JUSTIFICATION

B

DWG. NO.

401B3661

DETECTION METHOD

39V1A,1B,2A,2B,4A,4B & 5A.

Initiate a trip to avoid machine damage

SH.

2

REV.

-

LOGIC DESCRIPTION

ACTION SETPOINT (Nominal Setpoints)

Trip when any detector measures vibration above trip level AND other detector in that pair is disabled or measures above alarm level for LK39TTD

See Control Spec: Trip Level LK39VTx = 1.0 inch/sec Alarm Level LK39VAx = 0.5 inch/sec LK39TTD= 0.5 sec

GT EXHAUST TEMPERATURE AND PRESSURE

Exhaust Overtemperature Trip

Exhaust Overtemperature Trip

Exhaust Thermocouples Open Trip

L63ETH

PROTECTIVE STATUS

Possible damage to exhaust system due to high pressure

L86TXT

PROTECTIVE STATUS

Overtemperature of hot gas path components

L86TXT

L86TFB

POST IGNITION TRIP

PROTECTIVE STATUS

Overtemperature of hot gas path components

Potential loss of temperature control and protection

See Control Spec and Device Summary: 63ET-1:INCREASING: 24.0+-0.5 INH2O 63ET-2:INCREASING: 24.0+-0.5 INH2O KAFPEPHH=24 INH2O See Control Spec: TTKOT1 = 1240F TTKOT2 = 40F

Exhaust Temperature TC's TT-XD-1 through 31

Trips when exhaust temperature exceeds TTKOT1,6,5 (TTRXB+TTKOT2)

See Control Spec: Over.temp trip isothermal settingTTKOT1 = 1240F Over.temp trip incremental setting.TTKOT2 = 40F diff Low range exhaust temp limit TTKOT5= 1215 F High range ex

Exhaust Temperature TC's TT-XD-1 through 31

Trip when exhaust temperature signal drops below TTKXM4 deg F while in operation.

See Control Spec: TTKXM4 = 250F Failed TC alarm constant

g

SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

DWG NO

0476

B 401B3661 SCALE

CONT ON

SHEET

2 of 13

DISTR TO

Exhaust Duct Pressure High Trip

Trip when 96EP-1 pressure transmitter exceeds limit AND at 63ET-1,63ET-2 least one of the two 96EP-1 exhaust pressure trip switches 63ET-1 or 63ET-2 is picked up. Trip when exhaust temperature exceeds Exhaust Temperature TTKOT1 limit or when it TC's exceeds exhaust temp TT-XD-1 through 31 reference by TTKOT2 deg F.

SIZE

PROTECTIVE FUNCTION Compressor Discharge Pressure Low

SIGNAL NAME

TYPE


B

DWG. NO.

401B3661

DETECTION METHOD

SH.

3

REV.

-

LOGIC DESCRIPTION

ACTION SETPOINT (Nominal Setpoints) See Control Spec: CAKCPD = 35 psig

L3TFLT

PROTECTIVE STATUS

Potential loss of temperature control and protection

96CD-1, 1B, 1C

Trip when compressor discharge pressure drops below CAKCPD psig when Gen breaker is closed.

L30LTT

PROTECTIVE STATUS

Protect vibration monitor components

TT-IB-1,TT-IB-2,TT-IB3

Trip when Load Tunnel Inner Barrel Temp exceeds LTKTRIP deg F.

See Control Spec: LTKTRIP=500.0 degF

L63QTX

PROTECTIVE STATUS

Loss of bearing lubrication

96QT-1, 2, 3

2oo3 sensors reading low lube oil header pressure

15 psig

2oo3 sensors reading low trip oil header pressure

QHTPK = customer specified DECREASING: 20.0+-2.0 PSIG OR 1.4061+-0.1406 KG/Cm2G (INCREASING: 22.0+-2.0 PSIG OR 1.5468+-0.1406 KG/Cm2G) NORM=(1) NO-CEC;

EXHAUST FRAME AND #2 BEARING High Load Tunnel Temperature Trip LUBE OIL AND HYDRAULIC OIL PROTECTION LOW LUBE OIL PRESSURE TRIP

Trip Oil Pressure Low

L63HGL

PROTECTIVE STATUS

Loss of trip oil pressure to maintain stop/control valve position

63HG-1,2,3

COMBUSTION MONITOR AND GT FLAME DETECTION

L30SPT

PROTECTIVE STATUS

Possible partial combustor flameout

g

SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

DWG NO

0476

B 401B3661 SCALE

SHEET

3 of 13

DISTR TO

High Exhaust Temp Spread Trip

Trip occur (1) Spread See Control Spec: #1 > Allowable spread K30SPT= 2sec Allowable Spread limit Exhaust Temperature or (TTXSPL) = Calculated TC's Spread #1 (varies between TTKSPL7 TT-XD-1 through 31 >TTXSPL_Z1 and TTKSPL6 (30-125 AND Spread#2 is 0.8 degF) Compressor times greater rhan Steady state allowable Discharge TC's allowable spread when spread = function CT-DA-1, 2, 3 2nd and 3rd coldest (exhaust temperature, TC's are adjacent after compressor discharge K30SPT seconds temperature)

SIZE

PROTECTIVE FUNCTION Loss of Flame Trip

SIGNAL NAME

TYPE


L28FDT

PROTECTIVE STATUS

Unburned fuel in hot gas path

B

DWG. NO.

401B3661

DETECTION METHOD

SH.

4

REV.

-

LOGIC DESCRIPTION

ACTION SETPOINT (Nominal Se tpoints)

28FD-1, 2, 3, 4

Trip when two of the four combustor flame detectors indicate loss of flame.

See Control Spec

TNH, 52CR-1

Trip when 1) Turbine Speed falls below highest attained speed by more than the allowable limit (LK60BOG1) for LK60BOG2 seconds, OR (2) Static starter fails to start after getting start up permissive After run and Torque command is given to startic

See Control Spec: LK60BOG1 = 5 % LK60BOG2 = 1 sec LK14SSBOG = 1 % LK60SSBOGTRIP = 45 sec, KSS_CON_FAIL = 10 sec K60SSBOGTRIP=45 SECONDS

STARTING MEANS

Starting Device Trip

L3SMT

PROTECTIVE STATUS

Starter Device Troubles

GT COMPRESSOR PROTECTION

Compressor bleed valve position fault

Compressor Operating Limit Protection Trip

L4IGVT

PROTECTIVE STATUS

Impending loss compressor operating margin

96TV-1, -2 90TV-1

L86CBT

PROTECTIVE STATUS

Impending loss compressor operating margin

33CB-1, 2, 3, 4

LCPRERR

PROTECTIVE STATUS

Compressor operation exceeds design limits

96CD-1, 1B, 1C

g

Trip when compressor pressure ratio, offset by CPKERRO, exceeds the compressor operating limit line by CPKERRMX for CPKERRTD sec. SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

See Control Spec: LK86GVT1 = 7.5 DGA LK86GVT2 = 5 sec LK4IGVTX = 38 DGA

See Control Spec: K20CBY = 11 sec

See Control Spec: CPKERRTD=3 sec CPKERRMX = -0.45 CPKERRO = 0.25

DWG NO

0476

B 401B3661 SCALE

SHEET

4 of 13

DISTR TO

IGV CONTROL TROUBLE TRIP

Trip when difference between IGV position feedback (CSGV) and IGV refrence angle (CSRGV) is greater than LK86GVT1 DGA for more than LK86GVT2 sec below L14HS (95% speed), or when IGV position feedback (CSGV) is less than LK4IGVTX DGA above L14HS (95% sp Trip when any bleed valve is not full open after a time delay of K20CBY sec while the gen circuit breaker is open or the turbine drops below L14HS (94% speed)

PROTECTIVE FUNCTION FUEL CONTROL Gas Aux Stop Position Fault PreIgnition Trip

Startup Fuel Flow High

SIGNAL NAME

L4VS4_PI

L2SFT

TYPE

PRE IGNITION

PROTECTIVE STATUS TRIP 2


B

DWG. NO.

401B3661

DETECTION METHOD

5

REV.

-

LOGIC DESCRIPTION


33VS4-1, 2

Trip if the aux stop valve is commanded open and does not open or open fully before flame is detected.

NA

Gas: 96SR-1,2 Liquid: 77FD-1,2,3

Trip when SRV position feedback, fsgr, exceeds startup fuel stroke reference high setpoint, LK60FSGH, and the warmup is not complete and also leak test master should be enabled. If you are on Liquid fuel and if flow divider speed FQL1 is higher than constant LK60FFLH FOR K2SFTL time In liquid fuel , turbine trip is intiated whenever fuel flow is high after completion of warmup,accelerating stage and no liquid fuel recirculation

See Control Spec: LK60FSGH = 20%,LK60FFLH=14%

See Control Spec: K2F = 30 sec K6TT2= times

Prevent failed start caused by loss of gas flow

Prevent excessive fuel caused by valve control failure at ignition

SH.

Failure to Ignite on Gas

L94FIG L4FIGFLT

PRE IGNITION TRIP L4PRET

Prevent excessive fuel caused by ignition failure

28FD-1, 2, 3, 4

Trips when the firing timer, K2F, expires and when flame is not detected from 2 of 4 flame detectors after giving startcommand K6TT2 times and on total gas.

Successive Failure to Ignite on Gas

L86FIGFLT

PRE IGNITION


28FD-1, 2, 3, 4

Successive Failures to K62TT2 = 2 unsuccessfull light off on gas fuel. start attempts

g

SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

DWG NO

0476

B 401B3661 SCALE

SHEET

5 of 13

DISTR TO

SIZE

PROTECTIVE FUNCTION

Gas Speed/Ratio Valve Error

Gas Control Valve Servos Check

Gas Control Valve Not Following Reference Trip

Gas Fuel Intervalve P2 Pressure High Before Ignition

Gas Fuel Intervalve P2 Pressure High During Ignition and Warm Up

SIGNAL NAME

L3GRVT

L3ACS

L86GCVxT

TYPE

PROTECTIVE STATUS




B

DWG. NO.

401B3661

DETECTION METHOD

Inability to control fuel


REV.

-


96SR-1, 2

Trip when a gas speed ratio valve fault occurs: the error between position command and psoition feedback exceeds K3GRVTX %.

See Control Spec: K3GRVTX = 5%

96GC-x, 77FD

Trips (1) When GCV feedback is less than K3GCVFB after time delay of K3GFTD (2) When GCV is failed to open in comparison (greater)with LK3GCVxO when valve is not enabled after time delay of K3GVFTD (3) or if the servo current is lesser than K3GCVSC after time delay of K3GVFTD

See Control Spec: LK3GCVxFB = -5% LK3GCVxO = 5% LK3GCVxSC = 37.5% K3GVFTD=3 sec (where x = GCV number: 1, 2, 3, Q)

Trip when difference between GCV position and reference is greater than LK3GCVx for for 10 seconds.

TO See Control Spec: k836gv = % LK3GCV = 10 sec

L86FPG2IH


Potential high temperature ignition.

96FG-2A, 2B, 2C

L86FPG2H T


Potentially High Temperature Ignition

96FG-1, 2A, 2B

g

6

LOGIC DESCRIPTION

96GC-n


SH.

Trip when P2 pressure exceeds KFPG2IH for K86FPG2IH seconds before firing permissive is reached. Trip when P2 Pressure exceeds FPG2WUH (post ignition high pressure trip set point) for K86FPG2HT seconds between firing permissive and warmup complete. SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

See Control Spec: KFPG2IH = 6 psig K86FPG2IH = 5 sec

See Control Spec: K86FPG2HT = 5 sec

DWG NO

0476

B 401B3661 SCALE

SHEET

6 of 13

DISTR TO

SIZE

PROTECTIVE FUNCTION

SIGNAL NAME

TYPE

Gas Fuel Intervalve P2 Pressure Low PROTECTIVE L86FPG2LT During Ignition and STATUS TRIP 2 Warm Up

Excessive P2 Cavity Leak

Gas Purge for DLN 2+

L94GLTSU L94GLTSD

L4GPFT

PRE IGNITION

TRIP


B

DWG. NO.

401B3661

DETECTION METHOD

Potentially High Temperature Ignition

96FG-2A, 2B, 2C

Prevent excessive fuel during ignition causing fuel to ignite

96FG-2A, 2B, 2C

Non Functioning Gas Fuel Purge System

33PG-xx,63PGxx,20PG-x

g

SH.

7

REV.

-

LOGIC DESCRIPTION


Trip when P2 pressure falls below FPG2WUL (post ignition P2 low pressure trip setpoint) for K86FPG2LT seconds between firing permissive and warmup completeon fuel gas operation

See Control Spec: K86FPG2LT = 15 sec

Trip when the leakage across the SRV is excessive and the P2 cavity pressure rises above K86GLTA psig in K86GLT1 seconds, or if the P2 pressure drops below K86GLTB psig in K86GLT3 sec during a bottle test both during startup and shutdown. Trip when any of the following conditions match: (1) when Aux gas purge trip OR (2) When Pilot premix mode or premix mode and K20PG3ONY sec. to G3 purge command off and purge G3 command close category 4 fault OR (3) Purge G1 Command Close Category Fault and TD G1 Purge command off in Prmix mode (4) TD G2 purge cmd off and purge command category fault SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

See Control Spec: K86GLTA = 100 psig K86GLT1 = 30 sec K86GLTB = 150 psig K86GLT3 = 30 sec

K20PG3ONY = 8 Sec.

DWG NO

0476

B 401B3661 SCALE

SHEET

7 of 13

DISTR TO

SIZE

SIZE

PROTECTIVE FUNCTION

Gas Purge Fault Preignition

SIGNAL NAME

L4GPF_PI

TYPE

PRE IGNITION TRIP


B

DWG. NO.

401B3661

DETECTION METHOD

Non Functioning Gas Fuel Purge System

SH.

8

REV.

-

LOGIC DESCRIPTION


33PG-xx,63PGxx,20PG-x

Trip when either of following condition match (1) Purge G3 command open no faults and K20PG30NZ1 sec. TD G3 Purge commandm On Flame not Detected Minimum speed signal come (2)Purge G2 command open no faults and K20PG20NZ1 sec. TD G2 Purge commandm On Flame not Detected Minimum speed signal come (3) Purge G1 command open no faults and K20PG10NZ1 sec. TD G1 Purge commandm On Flame not Detected Minimum speed signal come

K20PG30NZ1 = 50 sec.K20PG20NZ1 = 50 sec.K20PG10NZ1 = 50 sec.

77NH-1, 2, 3

Trip when median selected speed is above Primary OS trip level

See Control Spec: TNKHOSTrip Level = 110%

SPEED PROTECTION L12H

PROTECTIVE STATUS

Overstress of rotating components

g

SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

DWG NO

0476

B 401B3661 SCALE

SHEET

8 of 13

DISTR TO

Turbine Primary Electrical Overspeed Trip

SIZE

PROTECTIVE FUNCTION Turbine Emergency Electrical Overspeed Trip

SIGNAL NAME L12H_P

Loss of Primary Control Speed L12HF Signal Loss of Emergency Control Speed L12H_FLT Signal

Speed Signal Deviation Fault

TYPE PROTECTIVE STATUS


B

DWG. NO.

401B3661

DETECTION METHOD

Overstress of rotating components

77HT-1, 2, 3

PROTECTIVE Loss of speed control and STATUS TRIP 3 Primary OS protection

77NH-1, 2, 3

PROTECTIVE Loss of speed control and STATUS TRIP 2 Emergency OS protection

77HT-1, 2, 3

L12HFD_C L12HFD_P

PROTECTIVE STATUS

Potential loss of speed control and protection

77NH-1, 2, 3 77HT-1, 2, 3

Loss of Emergency L12H_ACC Speed Signals

PROTECTIVE STATUS

Potential loss of overspeed protection

77HT-1, 2, 3

SH.

9

REV.

-

LOGIC DESCRIPTION


Trip when median See Control Spec: selected speed is Emergency Trip Level = above Emergency OS 110% trip level Trip when primary See Control Spec: speed signal is low Speed signal < 5% while in operation Trip when emergency See Control Spec and speed signal is low GEH 6421 Chapter 7: while in operation Speed signal < 2.16RPM Trip when difference between Emergency See Control Spec: speed signal and Trip Level = 5% of rated Primary speed signal is speed greater than the trip level. Trip when 2oo3 Emergency speed NA signals indicate sudden deceleration.

TURBINE CONTROL PANEL L3SFLT

Protective Module L5CMPST_
Trip TRP

PROTECTIVE STATUS

Controller Fault

Loss of TMR Voting

TRIP

Core Trip

Various

g

Trip when 2 of 3 controllers are not voting. Trip when 2 of 3 controllers are Trip SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

NA NA DWG NO

0476

B 401B3661 SCALE

SHEET

9 of 13

DISTR TO

Control System Fault Trip

SIZE

PROTECTIVE FUNCTION CUSTOMER Customer Trip

Emergency Pushbutton Trip

SIGNAL NAME

TYPE

L4CT

PROTECTIVE STATUS

L5E, R5E

PROTECTIVE STATUS


B

DWG. NO.

401B3661

DETECTION METHOD

SH.

10

REV.

-

LOGIC DESCRIPTION

ACTION SETPOINT (Nominal Setpoints) Trip when Customer Trip hardwired digital input drops out. NA

Customer Crosstrip

Customer Crosstrip

Contact inputs from Customer controller

Emergency Trip

Contact inputs from Customer and Local Panel

Trip when Remote or Local E-Stop pushbutton is depressed.

STEP TO MIN LOAD

Compressor Bleed L83CB_L_S Valves TEP

PROTECTIVE STATUS

Initiate a Step to Spinning Reserve to avoid machine damage

33CB-1, 2, 3, 4

2oo3 Compressor Bleed Valve Open Limit Switches indicate open when commanded closed AND IGVs have 2oo3 open limit switches op ened past the for each of 4 Bleed Valves minimum operating positionL33CSGV_CB. IGV is opened during operation

STEP TO FSNL

External52G Trip

L83RBO

PROTECTIVE STATUS

L52GX

PROTECTIVE STATUS

g

TNH, TNHA 77NH

Overspeed and Acceleration Detected

101.5 % speed, 3 %/sec acceleration

52GX

Load Rejection due to Generator Breaker opening

NA

SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

DWG NO

0476

B 401B3661 SCALE

SHEET

10 of 13

DISTR TO

Remote Breaker Open Detect

Initiate a Step to Full Speed No Load to avoid machine damage due to overspeed Initiate a Step to Full Speed No Load to avoid machine damage due to overspeed

SIZE

PROTECTIVE FUNCTION DCS Breaker Open Command

SIGNAL NAME

TYPE

lca4_fsnl

PROTECTIVE STATUS


B

DWG. NO.

401B3661

DETECTION METHOD

STEP TO FSNL

SH.

11

REV.

-

LOGIC DESCRIPTION

ACTION SETPOINT (Nominal Se tpoints)

HRSG temperatures

Load Rejection due to DCS detecting highhigh HRSG temperatures

Customer

Open Breaker when Maximum of dwatt1 and dwatt2 is less then LK32DWRP When DWATT is lesser than DWTLLIM and Gen Watt transducer is sensing fault after time delay of V32DWTDC Gen Bkr opens on reverse power

Generator Power < LK32DWRP (-4.8MW)

Reverse Power Detected

L32DW

STEP TO FSNL

Open Breaker to Avoid Generator Motoring

Maximum of MW sensors

Manual Breaker open

L52GT_TRI P

STEP TO FSNL

Operator initiated manual breaker trip

Operator Action

Emegency Lube Oil Pump Undervoltage Relay

L27QEL


Loss of Bearing Lubrication

27QE-1

Open Breaker when operator Issue Manual breaker open Trips before ignition if DC emergencey lube oil pump is determined to be in under voltage condition

Operator Initiated

NA

SEAL OIL

Haz gas Level High High start inhibit

L27ESL

l45LEL_PR ET


PROTECTIVE STATUS

Loss of Seal Lubrication

27ES-1

To prevent dangerous atm

g

45HA,HT,HG

Trips before ignition if DC emergencey seal oil pump is determined to be in under voltage condition Trip Signal is generated by logic L45LEL_PRET. This protection generates TRIP command in either og the following operating condition (1) If Turbine compartment Haz Gas Level Hi (2) If Gas Compt Has gas Level Hi (3) If Turbine compt Local Haz Gas Level Hi (4) If either of this Haz Gas monotor Rack #1, Rack # 2, Rack#3 (5) If Haz Gas syatem analog signal trbl SIZE


DRAWN

08-11-12

ISSUED

08-11-12

NA

CAGE CODE

NA

DWG NO

0476

B 401B3661 SCALE

SHEET

11 of 13

DISTR TO

Emegency Seal Oil Pump Undervoltage Relay

PROTECTIVE FUNCTION Fire ignition trip

SIGNAL NAME

TYPE

L45FTX



L86GT


To avoid generator damage

Emergecny stop

L5ESTOP1 _FBZ


To trip the machine giving manual command

Turbine compartment loss of ventillation trip

L4BTFLT


Over heating of turbine compartment

Scrubber dp/Level very high trip

L4PSTX4_A


To prevent uncleaned/moistured fuel entering into the machine

Coalescing filter level high trip

L4PSTX4_B


To prevent uncleaned/moistured fuel entering into the machine

Load compartment loss of ventillation trip

L63AG_TR P


DWG. NO.

401B3661

12

REV.

-

LOGIC DESCRIPTION

94F1-B

Trip signal generates If either fire found in Turbine/Acc compt or other any of 4 zones

Electrical inputs L86 signals

Gen trip lock out [l86g1a],Breaker failure lock out [l86bft], Gen& GSU Transformer lock out trip[l86v] ,GSU Transformer lock out trip [l86t] Unit trip Via 86G1B[l86g_1b],

[5E-1/PB] [R5E/PB]

Trip command will triggered if Emergency push button pressed

63AT-1.2.3,4

Turbine trips after time delay of BY K4BTFLT When low ventillation pressure still both oh of the ventillation fans running

71GS-1 ,2A,2B

71GCF1A,1B,2A,2B,3A,3B

Prevent overheating in Load gear compartment

63AG-1,2

g

SH.

DETECTION METHOD

Emergency due to fire

Generator protective trip

B

Trip signal will generate 1)If load compt vent pressure comes low sensed by both Control spec Pressure pr.switches after a switch setting time delay of 30 sec GEAR/LOAD COMPT AIR K63AG_TRP2 still two PRESSURE SWITCH fans are running DECREASING: 0.4 2)Load compt vent fan INH2O OR 10.1600 control signal is mmH2O enabled , still pressure NORM=NO-CEC; from sensed by 63AG 1,2 is GR1072 low after time delay of 7 min K63AG_TRP2 trip signal will be generated

GENERAL ELECTRIC COMPANY 08-11-12

ISSUED

08-11-12

See control specification K4BTFLT = 60sEC

Trips when level gets high when compared with predetermined level Trips when level gets high when compared with predetermined level

SIZE

DRAWN

ACTION SET POINT (Nomina l Set points)

CAGE CODE

DWG NO

0476

B 401B3661 SCALE

SHEET

12 of 13

DISTR TO

SIZE

PROTECTIVE FUNCTION

SIGNAL NAME

TYPE


B

DWG. NO.

401B3661

DETECTION METHOD

Failure to Ignite on Oil

L94FIL

Pre Ignition trip L4PRET


28FD-1, 2, 3, 4, 77FD 77NH,77HT

Fail to tranfer to initiate liquid fuel

L3FFL_FLT

Pre Ignition trip L4PRET

Unable to tranfeer to liquid fuel

77FD

g

SH.

13

REV.

-

LOGIC DESCRIPTION Trips when (1)IF After the firing timer delay of L2F ,no flame is detected in total liquid fuel mode (2) Any protective trip command triggers when Startup firing fuel command is enabled or under operation (3) If total mass flow of liquid fule is gr Trips When fuel feedback exceeds limit while L20FLXX _X timer is denergized ,when there is no recirculation and total liquid fuel

SIZE


DRAWN

08-11-12

ISSUED

08-11-12

CAGE CODE

ACTION SET POINT (Nominal Set points)

L2F = 30 Seconds K3RSLF1=120Sec

K33FFL_FLT=15 Sec

DWG NO

0476

B 401B3661 SCALE

SHEET

13 of 13

DISTR TO

SIZE

GT Trips List (Generic)

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