Operation Manual / Power2 850-M / 4.2 High-pressure stage
3 Expected replacement intervals /
© Copyright 2017 ABB. All rights reserved. HZTL4063_EN Revision A August 2017
Influencing parameters
The actual values can deviate considerably from the guideline values, for example, due to the
following influences:
¡ Fuel quality and fuel treatment
¡ Load profile (thermal cycling, also number of starts/stops, emergency shutdowns)
¡ Gas inlet temperature
¡ Frequency and execution of turbine and compressor cleaning
¡ Specification of the high-pressure stage
¡ System-specific operating conditions (combustion quality, exhaust gas composition)
¡ Atmospheric humidity after the intercooler.
For bearing parts
¡ Lubricating oil quality (oil filtering, oil condition, oil monitoring)
¡ Load profile (speed, pressure conditions, temperature)
¡ Number of starts/stops
¡ Imbalance of the rotor (degree of contamination).
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