CALCULATION
CALCULATION
(OP)
Could you explain the proper calulation to find volt-amps and the calculation for watts. I am trying to size a UPS to be capable of suppliying 480 watts for 5 minutes.
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RE: CALCULATION
The length of time it will hold up a load is supplied by the UPS manufacturer.
Lewis
RE: CALCULATION
RE: CALCULATION
Julian
RE: CALCULATION
the back-up time selection and the corresponding size of the battery are supplied by the manufacturer...at mains failure you have the inverter plus the load running and the battery ampere-hour can only be sized accurately by a particular manufacturer..
good luck
dydt
RE: CALCULATION