Pick-up
Parameters listed below determine the slip detection area. Slip detection area consists of detection
circle and two side blinders. For a slip to be counted the impedance must first enter the circle, then
while inside the circle the impedance must cross the blinders and then exit the circle. Keep in mind that
the impedance must stay between the blinders longer than what is set to
Minimum locust traverse time
between blinders for the function to count the slip. If more than one slips are required for the function to
trip the measured impedance must enter the circle from the same side each cycle. If time set to
Reset
slip detection after last detected slip has passed between slips the slip counter is reset.
Table. 5.4.26 - 223. Pick-up settings.
Name
Range
Step Default
Description
X detection circle offset
from origin (pri)
-50 000.00...50
000.00 Ohm
0.01
Ohm
-50.00
Ohm
Moves the midpoint of circle in the X-axis (reactance).
R detection circle offset
from origo (pri)
-50 000.00...50
000.00 Ohm
0.01
Ohm
0.00
Ohm
Moves the midpoint of circle in the R-axis (resistance).
Detection circle r (pri)
0.01...50 000.00
Ohm
0.01
Ohm
50.00
Ohm
Sets the radius of the detection circle.
R+ side blinder location
(pri)
0.00...50 000.00
Ohm
0.01
Ohm
20.00
Ohm
R+ side blinder. Impedance must cross this level after
entering the circle for the function to count a slip.
R- side blinder location
(pri)
-50
000.00...0.00
Ohm
0.01
Ohm
-20.00
Ohm
R- side blinder. Impedance must cross this level after
entering the circle for the function to count a slip.
Minimum locus traverse
time between blinders
0.000...1800.00
s
0.005
s
0.050 s
Minimum time impedance must stay between the blinders
so that the function will count a slip.
Pole slip detection limit to
trip
1...5 slips
1
slips
1 slips
How many slips need to be detected for the function to
trip.
Reset slip detection after
last detected slip
0.000...1800.000
s
0.005
s
1.000 s
Maximum time between slips before the function resets
the slip counter to zero.
Genera
Generattor Commander
or Commander
Instruction manual
Version: 2.07
248
© Arcteq Relays Ltd
IM00001
Summary of Contents for Generator Commander
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