Power management control system 6.8 for cimplicity hmi interface toolkit (220 pages)
Summary of Contents for GE SPEEDTRONIC Mark V
Page 1
April 1998 GE Power Systems Gas Turbine SPEEDTRONIC Mark V Annunciator Troubleshooting Chart This alarm list doesn’t purport to cover all details, nor to provide for every possible contingency to be met during operation Customer – Specific Alarms in <C> and <RST>...
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L43MAINT Maintenance — Forcing Auto calibrate, memory When done with the operation, deselect the Mode Enable changing or logic forcing operation. mode of operation has been selected. L5E_ALM Manual Trip The emergency stop push–...
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System Description Gas Turbine L12LF_P Protective Speed Signal LP speed pickup voting Check and recalibrate LP speed pickups. Trouble — LP mismatch in <P>. L83LOST Overspeed Test Mode Se- LP overspeed trip being See ”Overspeed Trip Checks” section of lected — LP checked.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L2SFT Startup Fuel Flow Exces- Excessive fuel for startup Check the servo and feedback signals for sive Trip has been detected. For gas proper operation. fuel the gas control valve is open too far.
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System Description Gas Turbine L26QN_ALM Lube Oil Tank Temperature Lube tank temperature be- Check for proper operation of the lube oil low recommended limits tank heaters. Starting is inhibited if the tank (see piping schematic). temperature is low. L26QA_ALM Lube Oil Header Temp Lube header temperature Check for proper operation of the lube oil High...
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L3SMT Starting Device Trip The turbine has been Note where in the start sequence the turbine tripped because the start- tripped to aid in determining cause of trip. ing device has failed to Check the suspect system.
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System Description Gas Turbine L52FC_ALM Cooling Fan Motor Breaker Cooling fan motor did not Check cooling fan motor module in PECC. Open start. L4IGVT Inlet Guide Vane Control IGV control system prob- Check IGV control system. Trouble Trip lem. L86GVA Inlet Guide Vane Control IGV control system prob- Check IGV control system.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L86TXT Exhaust Overtemperature The temperature control Isolate problem and correct. Trip system has not limited ex- haust temperature within the trip limits. L86TFB Exhaust Thermocouples Excessive number of ther- Check and reconnect thermocouples.
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System Description Gas Turbine L3LFLT Liquid Fuel Control Fault Liquid fuel checking sys- Determine abnormal condition by reading tem has detected an abnor- signals (L3LFLT1 to L3LFLT5). mal servo or LVDT posi- tion or signal. L33FL_ALM Liquid Fuel Stop Valve Valve or control failure.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L86S Auto Synchronizing Auto synchronizing self— Investigate synchronization system to deter- Lockout checking system has de- mine exact cause of problem. tected a synchronizing equipment abnormality. L27BN_ALM Bus Undervoltage – Bus synchronizing poten- Check bus PT fuses and wiring.
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System Description Gas Turbine L63CA3L_ALM Gen Air Filter Cleaner Generator air inlet filter Check air inlet filter cleaning components. Pressure Low cleaning system problems. L63GFH_ALM Generator Air Filter High High pressure differential Inspect and clean/change filter elements, as Pressure Drop across generator air inlet required.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L94H_ALM Generator Hydrogen Purge Shutdown initiated due to Check hydrogen cabinet for undervoltage. Shutdown one or more hydrogen sys- Check hydrogen control switch in mainte- tem problems, e.g., hydro- nance/auto. Check and restore hydrogen pu- gen purity has fallen to rity.
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System Description Gas Turbine L30RHFLTX Relative Humidity Sensor Humidity sensor failure. Check sensor and wiring. Fault L26JS2H_ALM Water Skid Enclosure Tem- Failure of exhaust fan. Check exhaust fan/motor components for perature High proper operation. L26WR2L_ALM Water Skid Enclosure Tem- Failure of heaters. Check heater and blower for proper opera- perature Low tion.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L60ATHA Steam Augmentation — High steam temperature. Reduce steam temperature. High Temperature L60ATLT_ALM Steam Augmentation — Steam augmentation sys- Correct problem before restarting steam Low Temp. Trip tem tripped due to low augmentation.
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System Description Gas Turbine R5E_ALM Remote Emergency Trip Unit was tripped with the Investigate and correct cause of trip. Manu- remote emergency trip ally reset pushbutton. pushbutton. L90TKL Exhaust Frame Cooling Exhaust frame cooling Investigate exhaust frame cooling system. System Trouble — Unload fans 88TK—1,2 problem or system problem.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L12L_ACC_AL Protection Module Accel- eration Trip LP L12LF Control Speed Signal LP speed pickup voting Check and recalibrate LP speed pickups. Trouble — LP mismatch. L12LBLT_ALM Overspeed Bolt Trip LP L86LOT Lube Oil HighTemp. Trip...
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System Description Gas Turbine L3GTVFLT Gas Transfer Valve Posi- tion Trouble L3GCVSFLT Secondary Gas Control VLV Servo Trouble L3GPVFLT Gas Premix/Trim Valve Servo Trouble L86GPVA Gas Premix/ Trim Not Tracking–Alarm L86GPVT Gas Premix/Trim Not Tracking –Trip L3GCVQFLT Quatenary Gas Control VLV Servp Trouble L39VTF Accelerometer Fault...
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L40EX_A_ALM EX2K Loss Of Excitation Loss Of Current To Field Trouble Shoot Master 1 Core Automatically Transfer To The Hot Backup Core L40EX_Y_ALM EX2k Loss Of Excitation Excitation Exceeded The Go To Gen/EX2K Control Screen, Check Trip Low Level Setpoint.
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System Description Gas Turbine L74A_ALM Excessive Volts Per Hertz Ratio Between V/HZ In- Lower The ExcitationGo To Gen/EX2K correct Control Screen, Check Fault Code , Click On Fault Code HelpAlso Check GEH6121 Pg.8–10 L74B_ALM Negative Sequencing Cur- Unbalance Stator Cur- Check The MMI Operation rent rent.Unbalance...
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L4_FB_ALM TCEA 4 Relay Circuit External (customer) trip. Check switch, wiring and activating param- FDBK (Extrnl Trip) A switch input wired to eters of switch. the control panel trips the turbine, when activated.
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System Description Gas Turbine L33GCL_ALM Load Compartment CO2 Fire protection system ac- Reset vent doors and latches. Door Closed tivation closes all compartment ventilation discharge vents. CO2 dis- charge pressure releases a door latch. L33GCG_ALM Generator CO2 Door Fire protection system ac- Reset vent doors and latches.
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Alarm 1 SPEEDTRONIC Mark V Annunciator Troubleshooting Chart L37GJA Generator Breaker Cooling Problem With One Of The Investigate Fan Control Circuits Fan On Backup Fans L37GJF Generator Breaker Cooling Problem with Both Cool- Reduce Gen enerator Out Put To The Max...
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Starting Motor Protection Timed Overcurrent Or In- Check The Starting Motor Protection Alarm rush Current To High Module Faults Codes Etc. L30BN_F_ALM Bently Nevada Monitor Increased Vibrations Check Shaft Vibrations Fault Check Bently Nevada Monitor System Check GE Vibration Probes...
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