ABB HT571908 Operation Manual page 51

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Operation
Expected exchange intervals
Influencing parameters
The specified values are only guide values and not guaranteed. The actu-
al values can deviate considerably from the guide values due, for exam-
ple, to the following influences:
€ Fuel quality and preparation
€ Load profile (thermal load cycles, also starts / stops, emergency shut-
downs)
€ Gas inlet temperature
€ Frequency and execution of turbine and compressor cleaning
€ Turbocharger specification
€ System-specific operating conditions (operating point, combustion
quality, composition of exhaust gas)
For bearing parts
€ Lubricating oil quality (oil filtration, condition of lubricating oil, oil moni-
toring)
€ Load profile (rpm / speed, pressure conditions, temperature)
€ State of rotor unbalance (degree of contamination)
Operation Manual / TPS44-F.. - TPS61-F..
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4.3 Page 49