Total power load/consumption for...

aaf

I've been asked by my boss to find out how much power the following list would consume or the power load for the lot. Now, I haven't a clue when it comes to this so any help would be great or if someone could point me in the right direction:

10 x HP PC's
1 x HP Proliant Server
2 x HP Inkjet printers
4 x HP Laser Printers
2 x Samsung Laser Fax machines
2 x Digital Photocopiers
2 x 1000v UPS's
1 x 16 Port Hub

Mac daddy

rack calculator proliant

Ups sizer

JackieChan

Personally,
If these are machines that he is serious about buying,
I'd pass this query on to the companies equipment supplier and get them to provide the answer.
Otherwise just do searches for the indivual items and find what the wattage is for each item.

JC

Stoner

usually, a pc takes about 2 amps ( depending on its age, the newer the higher), and a hub/switch no more than .5 aMp

Not sure about printers but they have mnotors and will run intermittantly so you will have peaks etc, the UPS is also hard to call as once charged it only needs a trickle, i would not even count it.

Get the running curretn from the photocopiers, as the other say. if you already have this equiment, read the running current.
add it all up and then multiply out by 230Vac, this (current x voltage ) will gve you the power in watts.

Then i'd allow 50% for peaks , starting currents etc ( photocopiers heating, motors etc)

aaf

I've posted this on another forum aswell and one person said total would be between 6 -7 Kilowatts and another person overestimated worst case scenario, 9 KW's! So gonna go with those estimates. Thanks for the help