
 APPLICATION HANDBOOK FOR THE RELATIONSHIP BETWEEN REAL POWER, APPARENT POWER AND POWER FACTOR by KEPCO, INC. 
  Real power is mathematically determined by dividing time into a very large number of small segments and multiplying the instantaneous voltage present in each time segment by the instantaneous current flowing and averaging the results. 
  Since power factor represents the ratio of real to apparent power, the high apparent power that yields a low power factor translates into a higher current than the load actually needs to satisfy its real power requirement. 
  Power supplies with active power factor correction (PFC) include the Kepco ABC (100W), MST (200W), RCW (350, 750 and 1500W), RKW (50, 100, 150, 300, 600 and 1500W), HSP (1000 and 1500W), BOP High Power (1000 and 2000W) and HSM (1000 and 1500W). 
 www.kepcopower.com /hbkpfc.htm (1897 words) 
