Abstract

GOMEZ CARMONA, Oscar  and  ZAPATA, Carlos J.. Effect of the Load Unbalance on the Reliability Assessment of a Power Distribution System. rev.ing. [online]. 2007, n.25, pp.52-59. ISSN 0121-4993.

Many three-phase distribution feeders are unbalanced because, first, they serve their customers by means of single-phase distribution transformers; second, they use components which operate in single-phase manner; third, most of the failures that affect their components are single-phase. This important fact must be included in reliability studies because, as shown in this paper, when the contrary is assumed pessimistic assessments of the reliability indices are obtained which could lead to erroneous investment decisions.

Keywords : Power system reliability; power distribution systems; Montecarlo simulation.

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