Monitoring During Operation; Lubricating Oil Pressure; Fig. 16: Oil Monitoring; Table 12: Lubricating Oil Pressure At Oil Inlet Upstream Of The Turbocharger - ABB PT003888 Operation Manual

Operation Manual / Power2 340-H / Low-pressure stage
5 Monitoring during operation / 5.1 Lubricating oil pressure
5

Monitoring during operation

5.1

Lubricating oil pressure

CAUTION
Assuring lubricating oil pressure
Serious damage to the engine or property can result from a missing or insuf-
ficient lubricating oil supply.
The lubricating oil pressure must be monitored during operation and the
u
necessary pressure assured at the oil inlet.
For monitoring the lubricating oil pressure, Turbo Systems recommends installing a mano-
meter "M". If the pressure is controlled electronically, the relevant signals should be
triggered at the warning and alarm values.
Fig. 16: Oil monitoring
01 Contact surface of the low-pressure stage
02 Oil inlet
03 Oil outlet
M Oil pressure measuring point
T Oil temperature measuring point
*) If the drain pipe is vented, the oil temperature measuring point can be installed at the out-
let in the vent tank. Otherwise the measurement should be taken in the drain pipe as close to
the low-pressure and high-pressure stage as possible.
Status for operation
Normal operation
Engine start: Cold oil, admissible for a maximum of 15
minutes
Engine idling, admissible for a maximum of 1 hour
Pre-lubrication and post-lubrication (engine stopped)
Warning signal: (n ≥ 0.5 x n
Alarm signal: Not admissible. Stop the engine immedi-
ately.
Table 12: Lubricating oil pressure at oil inlet upstream of the turbocharger
© Copyright 2022 ABB. All rights reserved.
)
Bmax
HZTL4053_EN
Pressure at oil inlet upstream of
the turbocharger
[bar] Overpressure
2.0 < p ≤ 4.5
oil
< 8.0
0.5 < p ≤ 2.5
oil
0.5 < p ≤ 1.0
oil
0.5 < p ≤ 1.25
oil
0.0 < p ≤ 0.5
oil
Rev.F March 2022