94 | 120
blue’Log X series
Fig. 75: cos
φ
(U) Power Control procedure: 4 point with hysteresis
Input box
Meaning
Curve
Selects the type of curve
2 point without hysteresis Curve with 2 interpolation points without hysteresis
2 point with hysteresis
Curve with 2 interpolation points with hysteresis
4 point without hysteresis Curve with 4 interpolation points without hysteresis
4 point with hysteresis
Curve with 4 interpolation points with hysteresis
Voltage source
Selects the voltage source
L1 / L2
Outer conductor voltage phases L1-L2
L2 / L3
Outer conductor voltage phases L2-L3
L3 / L1
Outer conductor voltage phases L3-L1
Highest value
Automatically selects the highest value from the
three phase voltages
Interpolation point P1 to P4
Interpolation points 1 to 4 for the curve
x: U/U
Nom
U/U
Nom
ratio of the individual interpolation points
y: cos
ϕ
excitation
Displacement factor control value for the individual
interpolation points (incl. excitation type)
Hysteresis U
Hyst
Hysteresis of the curve as the U/U
Nom
ratio
This procedure requires a power quality analyzer that has been connected
to the data logger and configured.