Stopping The Engine; Table 16 - ABB PT003888 Operation Manual

Operation Manual / Power2 340-H / Low-pressure stage
6 Operation and service / 6.4 Stopping the engine
6.4

Stopping the engine

Oil-cooled bearing casing variant
Run the engine for 5 to 10 minutes at idling speed before stopping it (only diesel en-
u
gines).
Observe the oil pressure for engine idling: 0.5 < p
u
Stop the engine.
u
Carry out post-lubrication of the low-pressure and high-pressure stage in accordance
u
with the following table.
Turbine inlet temper-
ature when stopping
the engine
t [°C]
TE
≥ 550
< 550
Table 16
Water-cooled bearing casing variant
Post-lubricate as long as the rotor is turning.
u
Observe the oil pressure while performing post-lubrication: 1.0 < p
u
Switch off post-lubrication as soon as the rotor has come to a standstill.
u
Deviating procedures must be coordinated with Turbo Systems.
CAUTION
Water cooling (if present)
If the residual heat in the low-pressure stage is not sufficiently dissipated by
the circulating cooling water, machine damage could occur.
Allow water cooling to continue for 20 ... 30 minutes after stopping the
u
engine.
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Post-lubrication
imperative
necessary until the ro-
tor comes to a stand-
still
HZTL4053_EN
≤ 2.5 bar.
oil
Duration of post-lub-
rication [min]
15 ... 20
10
recommended
Oil pressure during
post-lubrication (en-
gine stopped)
p [bar]
oil
0.5 < p ≤1.0
oil
0.5 < p ≤1.0
oil
≤0.5.
oil
Rev.F March 2022