HP LP 2000r manual Uninterruptible Power Supplies UPS, Power = Vol ts x Amps

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HP Netserver High Density Rack Solutions Overview (LP 2000r)

Uninterruptible Power Supplies (UPS)

The Uninterruptible Power Supply (UPS) is used to provide power to servers and peripherals should the AC power fail. Generally, the UPS will maintain an appropriate level of AC voltage and current long enough for the equipment to save open files and shut itself down in an orderly manner.

All UPSs sold by HP for use with the HP Netserver LP 2000r also feature complete surge protection and noise filtering.

Sizing a UPS is easy. However, many people are often confused over the differences between Watts and VA and which rating to use when selecting a UPS.

Power is a measure of energy divided by time. In direct current (DC) environments power is expressed as:

Power = Vol ts x Amps

In alternating current (AC) circuits, however, some of the current may travel into and back out of the equipment. This current is called a harmonic current and creates an apparent power (VA), which is larger than the actual power (W).

For many electrical devices the difference between the apparent power (VA) and the actual power (W) can be ignored. This applies to the HP Netserver LP 2000r. However, some devices without “power factor correction” may have an apparent power (VA) that is up to two times the Watt rating of the device. Normally, the required UPS rating may be determined by the total Watts required. However, if the UPS load consists of a high percentage on non-power factor corrected equipment, the VA rating of the UPS must also be considered to avoid overloading the UPS.

Uninterruptible

Power Supply

These are the UPSs available for the HP Netserver LP 2000r:

Input Voltage

Volts/Amps

Output Receptacles

Input Plug

HP Product Number

 

 

Quantity

Type

 

 

 

 

 

 

 

 

120 VAC

2.2 kVA

2

NEMA 5-20

NEMA 5-20P

APC2R120

 

 

6

NEMA 5-15

 

 

 

 

 

 

 

 

120 VAC

3.0 kVA

2

NEMA 5-20

NEMA L5-30P

APC3R1201

 

 

1

NEMA L5-20

 

 

 

 

4

NEMA 5-15

 

 

 

 

 

 

 

 

208 VAC

3.0 kVA

2

NEMA 5-15

NEMA L6-20P

APC3R208

 

 

2

NEMA L6-20

 

 

 

 

1

NEMA L6-30

 

 

 

 

 

 

 

 

230 VAC

2.2 kVA

1

IEC-19

IEC320

APC2R230

 

 

8

IEC-320

 

 

 

 

 

 

 

 

230 VAC

3.0 kVA

1

IEC-19

IEC320

APC3R2302

 

 

8

IEC-320

 

 

 

 

 

 

 

 

1For integrated shipment, order HP Product Number APC3RA

2For integrated shipment, order HP Product Number APC31A

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Contents Planning your rack system for LP 2000r Hp netserver high Density rack solutions OverviewExecutive Summary Publications WebsitesHP Netserver website http//netserver.hp.com Reader Assumptions Table of Contents HP Netserver High Density Rack Solutions Overview LP 2000r Safety Warnings Safety and Regulatory InformationGlossary HP Netserver High Density Rack Solutions Overview LP 2000r Planning your racked system Determine power requirements for the serversPower down sequence Power up sequenceCircuit breakers ServerInput Power watts x 3.41=Thermal dissipation BTU/hr Check your calculationsX 3.41 = 2,431 BTU/Hr Category Part Number Description Power consumption worksheet samplePower consumption worksheet actual HP Rack System/E Gauge columns provide strength Anti-tip footVentilation Mobility StrengthEase of Use StabilityFor Use with HP Rack Model Number Content HP Rack AccessoriesFront doors, side panels and tie kits For Use with HP Rack Model NumberCable Management Accessory Use Tie Kit Kit Contains HP Rack System/EMount Fastener HP Power Distribution Options Voltage Current Outlets HP Product Number TypeE7675A E77671A E7676A HP Netserver High Density Rack Solutions Overview LP 2000r Power = Vol ts x Amps Uninterruptible Power Supplies UPSConsole Switch Description IncludesAvailable HP Rack System/E Vertical Extension Kit HP Rackmount Flat Panel Monitor and KeyboardKit Contains HP Model Number HP Vertical Extension Kit IncludesFlexible installation options InstallationPost HP System/E racks or EIA standard cabinets Slide mountingMarking Rack Columns Marking the rackPost EIA standard non-HP racks 3 options Fixed, center mountingFixed, flush mounting Location Marks on the Racks Front Columns Marking the RackPreparing the HP Netserver for 2-post rack installation Before you begin installationInstalling the servers Installing the Uninterruptible Power SuppliesInstalling Power Distribution Units PDUs can be mounted on the rearHP System/E racks Cable ManagementAttach the Cable Management Arm Attach the main cable guidesBegin routing the cables Secure each cable bundleRoute the cables to their destination Maintain the ambient temperature Conclusion HP Netserver High Density Rack Solutions Overview LP 2000r
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