9018-18076.pdf.pdf - 第41页

Power Requirements 6 Site Preparation 6-9 Is PDU Re-wiring Necessary? Re-wiring the PDU is necessary only if you are connecting it to a diff erent power configuration than it was wired for, not merely a different voltage…

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6-8 Site Preparation
6 Power Requirements
Figure 6-7 International 3-phase systems
Figure 6-8 North American 3-phase systems
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Power Requirements 6
Site Preparation 6-9
Is PDU Re-wiring Necessary?
Re-wiring the PDU is necessary only if you are connecting it to a different power configuration than it
was wired for, not merely a different voltage. Delta (3PD) and Wye (3PY) are equivalent configurations.
See Table 6-11 and the examples below.
Suppose your system’s PDU is wired for 220 volts wye (option 3PY) and you want to connect it to:
1 208 volts wye (option 3PY)
No re-wiring is necessary; this is merely a voltage change and all internal components will handle
200 to 240 volts.
2 220 volts delta (option 3PD)
No re-wiring is necessary; options 3PY and 3PD have the same internal wiring.
3 220 volts wye with neutral (opt 3PN)
Re-wiring is necessary because the internal circuits are wired phase-to-phase and the internal
components would experience over-voltage. Whenever you switch from a non-neutral to a
neutral configuration, or vice versa, you must re-wire the PDU.
1. Regardless of the power option, the internal system components always operate at 200–240 volts.
If you determine that re-wiring the PDU is necessary, see PDU Wiring Diagrams on page 6-10.
Table 6-11 Power Options / Configurations
Power Options Configuration Description
1
3PD 200–240 volts 3-phase Delta (50/60Hz)
Includes 200V, 220V, 230V, 240V
3PY 208–220 volts 3-phase Wye (50/60Hz)
Includes 208V, 220V
3PN 380–415 volts 3-phase Wye with Neutral (50/60Hz)
Includes 380V, 400V, 415V
6-10 Site Preparation
6 Power Requirements
PDU Wiring Diagrams
Table 6-12 PDU wiring diagram
PDU Power
Option
Vol tage l ine-to-neut
/ line-to-line
Testhead Outlet Locations
1-module 2-module 4-module
Outlet Locations Figure 6-9 on
page 6-11
Figure 6-14 on
page 6-14
Figure 6-19 on
page 6-17
200–240V 3-Phase Delta 3PD 200
220
230
240
Figure 6-10 on
page 6-12
Figure 6-15 on
page 6-15
UnMux systems:
Figure 6-20 on
page 6-18
Mux systems:
Figure 6-24 on
page 6-22,
Figure 6-26 on
page 6-23
208–220V 3-Phase Wye 3PY 120 / 208
127 / 220
Figure 6-10 on
page 6-12
Figure 6-15 on
page 6-15
UnMux systems:
Figure 6-20 on
page 6-18
Mux systems:
Figure 6-24 on
page 6-22,
Figure 6-26 on
page 6-23
380–415V 3-Phase Wye with
Neutral
3PN 220 / 380
230 / 400
240 / 415
Figure 6-12 on
page 6-13
Figure 6-17 on
page 6-16
UnMux systems:
Figure 6-22 on
page 6-20
Mux systems:
Figure 6-27 on
page 6-24
Figure 6-29 on
page 6-25