Inspection and Maintenance Instructions for 7FA.05 Gas Onl
and Dual Fuel Gas Turbine
GEK 116862
XXI. TEMPERATURE CONTROL ......................................................................................................... 35
A. Exhaust Thermocouples (Control and Over temperature) ............................................................ 35
B. Wheelspace Thermocouple Temperature Limits .......................................................................... 35
XXII. FLAME DETECTION AND PROTECTION SYSTEM ............................................................... 36
A. Flame Detectors ............................................................................................................................ 36
B. Scanner Lens ................................................................................................................................. 37
XXIII. SPEED CONTROL AND OVERSPEED PROTECTION SYSTEM (ELECTRONIC) ............ 37
A. Magnetic Pickups .......................................................................................................................... 37
B. Calibration Checks ........................................................................................................................ 37
XXIV. SPEEDTRONIC* CONTROLS AND EQUIPMENT .................................................................... 37
A. Control Panels, Junction Boxes, and Power Supply Components ................................................ 37
B. Relay Contacts .............................................................................................................................. 37
XXV. INLET AIR SYSTEMS (TURBINE) ............................................................................................... 37
A. Inlet Filter House .......................................................................................................................... 37
B. Inlet Duct and Plenum ................................................................................................................... 37
XXVI. INLET BLEED HEAT SYSTEMS .................................................................................................. 38
A. Piping Insulation ........................................................................................................................... 38
B. Manual Stop Valve ........................................................................................................................ 38
C. Control Valve ................................................................................................................................ 38
D. Pressure Transmitters .................................................................................................................... 38
E. Inlet Bleed Heat Manifold ............................................................................................................. 38
XXVII. INSTRUMENTATION ..................................................................................................................... 38
A. Pressure/Temperature Transmitters .............................................................................................. 38
XXVIII. BLADE HEALTH MONITORING ................................................................................................. 39
A. Blade Passing Signals ................................................................................................................... 39
B. Distortion ...................................................................................................................................... 39
C. Sensor Integrity ............................................................................................................................. 39
D. Required Actions During Interface Maintenance .......................................................................... 39
XXIX. COMBUSTION DYNAMICS MONITORING .............................................................................. 39
A. Probe Calibration .......................................................................................................................... 39
B. Required Actions During Interface Maintenance .......................................................................... 40
LIST OF TABLES
Table 1. Periodic Inspection Schedule ................................................................................................................... 7
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