Power Line Transients; Maximum Peak Inrush Specifications; Crest Factor Specifications - HP StorageWorks XP12000 Site Prep Manual

Power line transients

Heavy electrical loads from nearby machinery or equipment (for example, elevators or
electric welders) can cause intermittent system problems with sophisticated electronic
equipment, even if that equipment is on a separate circuit breaker. When faced with
these conditions, provide a separate, completely independent power panel with an
isolated ground and circuit breaker coming directly from the main building power source
or secondary power source.
If necessary, an HP representative can measure your power line noise level and make
appropriate recommendations concerning the use of line treatment devices.
Maximum peak inrush specifications
Cabinet
DKC
DKU
50-amp power configurations are single-phase only.
Crest factor specifications
Cabinet
DKC
DKU
50-amp power configurations are single-phase only.
Power
30-amp
50-amp
30-amp
50-amp
Power
30-amp
50-amp
30-amp
50-amp
Single-phase
46 A
60 A
34 A
56 A
Single-phase
1.68
1.56
1.65
1.50
HP StorageWorks XP12000 Disk Array
Three-phase
34 A
Not applicable
26 A
Not applicable
Three-phase
1.67
Not applicable
1.53
Not applicable
55