Page 177 - Power Quality in Electrical Systems
P. 177

Power Quality Events  159






          Phase current            Phase current
           (one cycle)              (one cycle)













          Phase current            Phase current
           (one cycle)              (one cycle)













                                                 Total computer phase current  At the electrical panel
                                   Phase current
                                    (one cycle)












            Total phase current at the electrical panel
                       (one cycle)
        Figure 11.4  Total phase current to a network of personal
        computers [11.6].
        [© 1997, IEEE, reprinted with permission]
   172   173   174   175   176   177   178   179   180   181   182