Chapter 1. Understanding the IBM Power Systems 775 Cluster 45
AC requirements
Table 1-5 shows the AC electrical requirements.
Table 1-5 AC electrical requirements
1.5.5 Water conditioning unit
The Power 755 WCU system is shown in Figure 1-35.
Figure 1-35 Power 755 water conditioning unit system
Input configurationThree phase
and GND
(no neutral)
Three phase
and GND (no
neutral)
Rated nominal voltage and frequency200 to 240 Vac
@ 50 to 60Hz
380 to 480 Vac
@50 to 60Hz
Rated current (amps per phase)125A100A
Acceptable voltage tolerance @ machine power cord180 - 259Vac333 - 508Vac
Acceptable frequency tolerance @ machine power cord47 - 63Hz47 - 63Hz ...
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