Technical Data - ABB REL 501-C1 2.5 Technical Reference Manual

5.7
Power swing detection (PSD)
Parameter Range
KR 120 - 200
Step: 1
tP1 0.000 -
60.000
Step: 0.001
tP2 0.000 -
60.000
Step: 0.001
tW 0.000 -
60.000
Step: 0.001
tH 0.000 -
60.000
Step: 0.001
tEF 0.000 -
60.000
Step: 0.001
tR1 0.000 -
60.000
Step: 0.001
tR2 0.000 -
60.000
Step: 0.001

Technical data

Table 102: PSD - Power swing detection
Parameter
Impedance setting range at I
=1A
(divide values by 5 for I = 5A)
r
Reach multiplication factor, KX
Reach multiplication factor, KR
Initial PSD timer, tP1
Fast PSD timer, tP2
Default Unit
125 %
0.045 s
0.015 s
0.250 s
0.500 s
3.000 s
0.300 s
2.000 s
Setting range
Reactive reach, XIN 0.10-400.00 ohm/phase
r
in steps of 0.01
ohm/phase
Resistive reach, RIN 0.10-400.00 ohm/phase
in steps
of 0.01ohm/phase
120-200% of XIN in steps
of 1%
120-200% of RIN in steps
of 1%
0.000-60.000 s in steps of
1 ms
0.000-60.000 s in steps of
1 ms
Line distance
Description
Reach multiplication factor for the outer
resistive boundary
Timer for detection of initial power swings
Timer for detection of subsequent power
swings
Waiting timer for activation of tP2 timer
Timer for holding PSD output
Timer for overcoming single-pole reclos-
ing dead time
Timer giving delay to blocking of output
by the residual current
Timer giving delay to blocking of output at
very slow swings
Accuracy
+/- 0.5 % +/- 10 ms
+/- 0.5 % +/- 10 ms
Chapter 4
91