Woodward HighPROTEC - Page 820

Protective Elements
Operating area (colored in bright red) of type polygon, with »Direction enable« = “active”.
Setting Parameter Description
Polyg.Pos.Imp.Reach Polygon characteristic: The »Positive Impedance Reach« is the amplitude of the
positive impedance phasor (1) → (3) in the forward direction (first quadrant).
Polyg.Pos.Imp.Angle Polygon characteristic: The »Positive Impedance Angle« is the angle (B) of the
positive impedance phasor (1) → (3) in the forward direction (first quadrant).
Polyg.Pos.Imp.R.Ang.1 Polygon characteristic: The »Positive Impedance Reach Angle 1« is the tilt angle (J)
of the line element which is starting at the positive impedance reach tip (3) and
spreads on the right side (3) → (4) in the first quadrant.
Polyg.Pos.Imp.R.Ang.2 Polygon characteristic: The »Positive Impedance Reach Angle 2« is the tilt angle (K)
of the line element which is starting at the positive impedance reach tip (3) and
spreads leftwards, to the second quadrant, (3) → (2).
Polyg.Pos.Resis.Reach Polygon characteristic: The »Positive Resistive Reach« determines the reach (5) on
the positive R-axis and is used to limit the coverage for fault resistance and
encroachment of the load impedance into the characteristics.
Polyg.Pos.Resis.Ang.1 Polygon characteristic: The »Positive Resistive Angle 1« is the tilt angle (C) in the first
quadrant. The area right from the blinder is excluded from the operating area.
Polyg.Pos.Resis.Ang.2 Polygon characteristic: The »Positive Resistive Angle 2« is the tilt angle (D) in the
fourth quadrant.
Polyg.Neg.Imp.Reach Polygon characteristic: The »Negative Impedance Reach« is the amplitude of the
negative impedance phasor (1) → (7) in the reverse (backward) direction (third
quadrant).
Polyg.Neg.Imp.Angle Polygon characteristic: The »Negative Impedance Angle« defines the impedance
angle (1) → (7) in the reverse (backward) direction (third quadrant).
Polyg.Neg.Imp.R.Ang.1 Polygon characteristic: The »Negative Impedance Reach Angle 1« is the tilt angle (E)
of the line element which is starting at the negative impedance reach tip (7) and and
spreads to the right, i.e. into the fourth quadrant, (7) → (6).
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