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B-5
Appendix B - Battery Information
©2002 Xantrex Technology Inc. All Rights Reserved.
P/N 975-0049-01-01 Rev A 10/2002
Estimating Battery Requirements (continued)
Multiply the amperage by the number of hours the load
will operate to roughly calculate amp hours. Double this
figure to reach the 50% battery capacity level.
Refer to the example and work sheet on the following
pages as a guide to determine the battery-bank’s amp-
hour requirements.
Complete the following steps to calculate the battery-
bank capacity requirements. Use the blank table on the
next page to enter the values for your system. A sample
table is shown below.
NOTE: Motors typically
require 3–6 times
their running
current when
starting. Check the
manufacturer’s
data sheets for
their starting
current
requirements. If
large motors will
be started from the
inverter, increase
the battery-bank
size to allow for
the higher start-up
current.
*NOTE:
Refrigerators
and ice-makers
typically run
only about 1/3 of
the time,
therefore, the
running wattage
is 1/3 of the
total wattage of
the appliance.
Divide the total
wattage of the
appliance by 3
and enter it in
Step 2.
Содержание Trace 512 UR-UPS
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