Fig 2-4 Maximum permissible load step in gas mode
Gas - Mode
Stepwise Load ReductionInstant Load Application
•Maximum load step according to figure above•Maximum load step according to figure above
•Steady-state frequency band ≤ 1.5 %•Steady-state frequency band ≤ 1.5 %
•Maximum speed increase 10 %•Maximum speed drop 10 %
•Recovery time ≤ 10 s•Recovery time ≤ 10 s
•Time between load steps ≥ 20 s ²)•Time between load steps ≥ 20 s ¹)
Diesel Mode
Stepwise Load ReductionInstant Load Application
•Instant load step 100% - 50% - 0%•Instant load step: 0% - 33% - 56% - 77% - 100%
•Steady-state frequency band ≤ 1.0 %•Steady-state frequency band ≤ 1.0 %
•Maximum speed increase 10 %•Maximum speed drop 10 %
•Recovery time ≤ 10 s•Recovery time ≤ 10 s
•Time between load steps ≥ 5 s )
DBAD209883 2-5
2. Operating RangesWärtsilä 46DF Product Guide
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