A.V.R. operation manual
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12
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10.
Calculation to Capacity
1.
Firstly understanding the required voltage and total current of an equipment such as computer etc.;
The calculation formula is:
Total Capacity (VA) = Required voltage value (V)
╳
Required total current (A)
2.
This total capacity is practical consumption power, when A.V.R. capacity is selected.
It is necessary to consider the possibility in future to expand the installation capacity, so that A.V.R.
capacity may be generally added extra 25% at least. Therefore, the A.V.R. capacity is:
A.V.R. practical capacity= Total capacity (VA)*125%
For example:
A computer is operated with voltage 115V and total current 50AMP.
A.V.R (KVA) = 115V*50A/1000*125%
= 5.75KVA*125%
= 7.18KVA
So that preferably selecting a voltage regulator with 7.5 KVA, and accordingly analogized.
