Economy Loading Simplified [includes discussion]

THE PRINCIPLES of loading generating stations according to incremental rate characteristics have been known and practiced for a number of years. More recently the effect of transmission losses upon economy loading of plants has received attention. The continued rapid growth of transmission networks and system interconnections promises to bring about increased interest and emphasis on the over-all problem of operating systems at optimum economy. This article proposes to present a summary of the problem in a manner largely devoid of abstract mathematical concepts and derivations. An effort is made to establish certain principles and criteria, mainly through intuitive reasoning.