摘要：The present paper discusses the main electrical parameters, used to evaluate the operation and control of a power line in a stationary mode. A large part of these parameters has been heuristically introduced, which requires their precise definition, aimed to obtain a conformable assessment, done in details in IEEE Standard 1459-2000. Their definitions are presented in the paper without any comment, but attention is stressed on the digital approach, used nowadays to compute them. Some conclusions are made concerning Reactive power and Reactive energy, related with the existence of different definitions. Some approaches have been presented for the optimal compensation of the Reactive energy, particularly important for parametric and non-linear loads. An approach is offered for the simultaneous assessment in a united computational procedure of the Active, Reactive, and Apparent energy. The method is based on actually measurable electrical features, and may be considered as a new definition of these Energies and Powers, functionally related with the terms already known.
