THE EFFICIENCY OF ELECTRIC DISTRIBUTION NETWORKS OPERATING IN DISTORTION AND NON-SYMMETRICAL REGIME.

The paper is structured in five parts. In the first part is presented the actual state of preoccupations, principles and hypothesis applied by the authors, to evaluate the electric distribution networks efficiency (EDN). In the second part is presented the mathematical model for evaluation of the distortion and non-symmetrical regime (DNSR) its impact on the energetic performances of the electric transformer - that is the main equipment of EDN. The measurement in EDN and DNSR, viewing the affects of the power performances, makes the third part of the paper. There are denoted the mathematical absolute and relative values, of EDN efficiency in DNSR toward the reference regime (RR). In the fourth part are presented the results of the researches as well as the conclusions. [ABSTRACT FROM AUTHOR]