Fig. 10
From: Adaptive differential current relay based on form/ripple factors for busbar current signals
(a) The input and output secondary current signals (iain and iaout) for the ‘A’ phase of BB1. (b) The input and output secondary current signals (ibin and ibout) for the ‘B’ phase of BB1. (c) The input and output secondary current signals (icin and icout) for the ‘C’ phase of BB1. (d) The instantaneous values of three phases directionality factors (DFa, DFb and DFc) in the case of internal fault. (a–d) simulation current signals and the directionality factors for case study 2.
