ABB HT609938, Operation Manual

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Operation Manual / A130-H.. - A140-H..
6 Operation and service / 6.3 Expected replacement intervals
© Copyright 2021 ABB. All rights reserved. HZTL4030_EN Rev.G July 2021
Expected replacement intervals
Operating hours Number of engine start
cycles (Peak shaving mode)
Turbine casing 25000 … 50000 5000 … 10000
Nozzle ring 25000 … 50000 5000 … 10000
Gas outlet flange 25000 … 50000 5000 … 10000
Heat shield 25000 … 50000 5000 … 10000
Bearing casing 25000 … 50000 5000 … 10000
Bearing parts 12000 … 24000 5000
Rotor components See information on rating
plate
20000
Other casings 50000 - -
Table 12: Expected replacement intervals
The specified values are guideline values and not guaranteed values; see Influencing para-
meters.
Influencing parameters
The specified values are guideline values and are not guaranteed. The actual values can devi-
ate significantly 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, oper-
ating point)
¡
Gas inlet temperature
¡ Turbocharger specification
¡
System-specific operating conditions (combustion quality, exhaust gas composition)
For bearing parts
¡
Lubricating oil quality (oil filtering, oil condition, oil monitoring)
¡
Load profile (speed, pressure conditions, temperature)
¡
Number of starts/stops
¡
Unbalance of the rotor (degree of contamination).
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