Voted Best Answer
Nov 22, 2017 - 10:54 PM
The "sequence Filter" should be used for generating symmetrical components.The inputs for this block are magnitude and phase angle of the phase quantities (these quantities can be obtained easily by using multimeter in your electrical circuit). The outputs of this block are magnitude and phase angle of positive, negative, and zero sequence components. These components (+,-,0) are for phase "A" and you have to add or subtract 120 degree phase shift (according to your image) to get other quantities. The symmetrical component block gives "I+a","I-a", and "I0a".