Configuration Examples; High-Density System Using Conventional Cooling - Compaq 204451-002 - UPS T2200 XR Configuration

Table 2. Types of HP Power Distribution Cables
Description
Metal-clad 3-wire split/single-phase
Metal-clad 3-wire split/single-phase
Metal-clad 3-wire split/single-phase
Metal-clad 3-wire split/single-phase
Metal-clad 4-wire three-phase
Metal-clad 5-wire three-phase
Metal-clad 4-wire three-phase

Configuration examples

This section includes basic configurations for using HP three-phase power components for high-density
systems.

High-density system using conventional cooling

Figure 12 shows a UPS rack with parallel HP RP12000/3 UPSs providing 60 kilowatts through a PD
rack and power distribution cables to a high-density system of four 15-kW ITE racks. In this example,
the ITE racks use conventional air cooling as supplied through plenums in a raised-floor facility. Note
that the racks can accommodate cables routed overhead or under the floor.
NOTE
Best practices dictate allowing for a certain amount of "headroom"
when planning UPS loading. The example in Figure 12 illustrates a
maximum loading scenario with no expansion headroom
The actual number of ITE racks that can be served by a UPS rack depends on the power density of
each rack. A 60-kW UPS rack can support:
• 10 low-density racks at 6 kilowatts per rack (larger than 2U servers, storage, networking
equipment)
• 5 medium-density racks at 12 kilowatts per rack (1U servers, small blade servers)
• 3 high-density racks at 20 kilowatts per rack ( smaller than 2U or densely-packed blade servers)
Online utilities for calculating the power requirements for HP server products are available at the URLs
provided in the section titled
Receptacle type
NEMA L5-30R
NEMA L6-20R
NEMA L6-30R
CS 8269
NEMA L15-30R
NEMA L21-30R
IEC 460C9
.
"For more information" at the end of this paper.
Overall
Conduit wire
length (ft) length (ft)
5 13
10 18
15 23
20 28
30 38
Same as Same as
above above
Same as Same as
above above
Same as Same as
above above
Same as Same as
above above
Same as Same as
above above
Same as Same as
above above
11