Sequence networks to the calculation of two-simultaneous faults at the same location

Abstract

a b s t r a c tThe system of symmetrical components (012-system) can be used to simulate symmetrical and asymmetrical operation of power systems. However, the classical literature of Power Systems Analysis does not present one equivalent circuit in 012-system to two-simultaneous faults where there are a singleline-to-ground fault and a bolted line-to-line fault. This paper presents the equations and the new equivalent circuit mentioned. In addition, we present a comparison of results between the proposed approach and the output of the commercial software ANAFAS, which validates the methodology. We find evidence that the new equivalent circuit developed can substitute the equivalent circuits used to calculate a single line-to-ground fault and a bolted line-to-line fault.

Fault prediction model on electrical power network using artificial neural network-based time series: A case study of Ayede-Eruwa/ Lanlate Feeder

“…According to [15], symmetrical components were used to simulate symmetrical and asymmetrical operation of power systems. The paper described an approach based on symmetrical components theory to calculate short-circuit currents as a result of simultaneous SLG and BLL-F.…”

Analysis of faulted power system during simultaneous open conductor and ground fault

“…Moura et al . [11] used symmetrical components for the analysis of the symmetrical and asymmetrical operation of the power system which presents the equations and the new equivalent circuit only for simultaneous single line‐to‐ground (LG) fault and bolted line‐to‐line fault.…”