Branch Circuit Breakers; Frequency - HP StorageWorks XP1024 Manual

Hp storageworks disk array xp1024: site preparation guide (a7906-96013, july 2005)
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Branch circuit breakers

Frequency

Preparing for installation
your electrician can determine the current line voltage and make
recommendations. Avoid the use of a line voltage conditioner.
Make sure that a power distribution unit (if used) supports the correct
voltage to support your entire system.
See
"AC power cabling requirements" on page 53
circuit requirements for your power situation.
Three-phase branch circuit breakers
The power cords supplied with each HP Disk Array XP1024 DKU
configured for three-phase power are sized for connection to a 30 or
60-amp circuit. There are no external power cords for the DKC when the
HP Disk Array XP1024 is configured for 60-amp, three-phase power.
Single-phase branch circuit breakers
The power cords supplied with each HP Disk Array XP1024 DKU
configured for single-phase power are sized for connection to a 30 or
50-amp circuit. The power cords supplied with each HP Disk Array
XP1024 DKC configured for single-phase power are sized for connection
to a 30 or 40-amp circuit.
30-amp, single-phase power is available by special order only.
AC line frequency is normally determined by your local power providers.
In some cases, electrical power is supplied by motor-generators. Shifts in
AC line frequency can cause system errors. Your HP CE can monitor the
frequency of the input AC line power and make recommendations, if
necessary. The HP Disk Array XP1024 requires that the line frequency be
within 0.5 Hz of the rated line frequency (50 Hz or 60 Hz).
for the specific branch
37

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