Meaning of "Load Current"

[Anonymous user]

Hi,

we are running several "IBM UPS 3000XHV" with an APC-Management interface.

In the interface the UPS shows a number named "Load Current", which should show the Ampere the UPS currently uses.
This number seems to be nearly statical on all USVs and is constant for some days on 3 of 5 systems.
Does this number reliable show the current load?

Can I calculate Watt by multiplying Voltage with Ampere?

Thanks, Steffl

[Techie_apc · Accepted solution]

Stephan,

The Output Current shows the current in amperes drawn by the load of the UPS. If the load connected to the UPS is less than one ampere, this value shows 0 A. This is due to the UPS units ability to measure small loads accurately. With small loads, the rate of accuracy is low. With a larger load, the UPS will provide a more accurate load rating.

I recommend you to upgrade the Network Management Interface firmware if it has got an older firmware version. This is a normal practice if you feel that the card shows erroneous report.

As far as I know, we can only calculate the VA(Volt-Amps) by multiplying Voltage with Ampere.

VA=Voltage(V) X Amps(I)
Watts=VA X Power Factor (P.F)

You can see the percentage of the output Watt(%Wout ) value through the Network Management web interface.