ABB Power2 850-M16 - Page 49

Operation Manual / Power2 800-M / 4 Product description
4
Monitoring during operation
Page 17 /
59
© Copyright 2016 ABB. All rights reserved.
HZTL4061_EN
Revision A
September 2016
4 Monitoring during operation
4.1 Lubricating oil pressure
CAUTION
Assuring lubricating oil pressure
Serious damage to engine or property can result from missing or insufficient
lubricating oil supply.
 The lubricating oil pressure must be monitored during operation and the
necessary pressure assured at the oil inlet.
For monitoring the lubricating oil pressure, ABB Turbo Systems recommends installing a ma-
nometer "M". If the pressure is controlled electronically, the appropriate signals are to be trig-
gered at the warning and alarm values.
Figure 10: Lubricating oil pressure measuring point
The measuring point M is at the oil supply channel of the high and low-pressure stage that is
not used for the oil supply. The oil pressure ranges at measuring point M are listed below.
Power2
Status for operation
Oil pressure at measuring point M
p
oil, in
[bar]
850
Normal operation
1.3 ... 2.5
Engine start: Cold oil, admissible for max. 15 minutes 1.3 ... 5.0
Pre-lubrication
1.3 ... 2.5
Post-lubrication 1.3 ... 2.5
Long-term lubrication
0.2 ... 0.5
Warning signal: Temporarily admissible (<1 h ) 1.0 ... 1.3
Alarm signal: Not admissible. Stop the engine
immediately
< 1.0
Table 4: Oil pressure range
Metering orifices are installed in the oil inlet of the low-pressure stage and the high-pressure
stage in order to safeguard the oil pressures.