Dual Power Feed; Three-Phase Power Feed - Fujitsu ORACLE M10-1 Installation Manual

2.8.2

Dual power feed

Dual power feed is an option for receiving power feeds from two external power
supplies. If a failure occurs in one external power supply, the system can still
continue to operate with the external power supply on the other system.
Figure 2-7
For dual system connections, connect the power cords to the input power supplies on
separate systems.
Figure 2-7 Power supply system with dual power feed
PSU#0 PSU#1
2.8.3

Three-phase power feed

Three-phase power feed is a method of receiving power feeds from a three-phase
power supply rather than a single-phase power supply.
The customer needs to prepare an external power distribution unit for three-phase
power feed for the SPARC M10-1. There are two types of three-phase power feed:
three-phase star connection and three-phase delta connection.
Figure 2-8
Fujitsu M10-1/SPARC M10-1 Installation Guide ･ March 2019
26
shows a power supply system with dual power feed.
AC power
CB
CB
and Figure 2-9 show a power supply system with three-phase power feed.
CB: Circuit breaker