90
Power swing detection (PSD)
Chapter 4
Line distance
5.5
Input and output signals
Table 99:
Input signals for the PSD (PSD--) function block
Path in local HMI: ServiceReport/Functions/Impedance/PowerSwingDet/FuncOutputs
Table 100: Output signals for the PSD (PSD--) function block
5.6
Setting parameters
Setting values for impedance parameters are given for rated current Ir = 1A. Divide the given
values by 5 if the rated current is Ir = 5A.
Path in local HMI: Settings/Functions/Groupn/Impedance/PowerSwingDet
Table 101: Setting parameters for the power swing detection PSD (PSD--) function
Signal
Description
BLOCK
Blocks the function
BLKI01
Blocks internal inhibit of PSD-START output for slow swing condition
BLKI02
Blocks internal inhibit of PSD-START output for subsequent residual
current detection
BLK1PH
Blocks one-out-of-three-phase operating mode
REL1PH
Releases one-out-of-three-phase operating mode
BLK2PH
Blocks two-out-of-three-phase operating mode
REL2PH
Releases two-out-of-three-phase operating mode
I0CHECK
Residual current (3I
0
) detection used to inhibit PSD-START output
TRSP
Single-pole tripping command issued by tripping function
EXTERNAL
Input for external detection of power swing
Signal
Description
START
Power swing detected
ZIN
Measured impedance within inner impedance boundary
ZOUT
Measured impedance within outer impedance boundary
Parameter
Range
Default
Unit
Description
Operation
Off, On
Off
-
Operating mode for PSD function
Detection
Off, On
Off
-
Operating mode for the internal power
swing detection (PSD) function
X1IN
0.10 - 400.00
Step: 0.01
30.00
ohm/phas
e
Positive sequence reactive reach of the
inner boundary
R1IN
0.10 - 400.00
Step: 0.01
30.00
ohm/phas
e
Positive sequence resistive reach of the
inner boundary
KX
120 - 200
Step: 1
125
%
Reach multiplication factor for the outer
reactive boundary
Summary of Contents for REL 501-C1 2.5
Page 1: ...Technical reference manual Line distance protection terminal REL 501 C1 2 5 ...
Page 2: ......
Page 26: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Page 42: ...30 Technical data Chapter 2 General ...
Page 66: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Page 142: ...130 Time delayed overvoltage protection TOV Chapter 6 Voltage ...
Page 162: ...150 Autorecloser AR Chapter 9 Control ...
Page 174: ...162 Event function EV Chapter 10 Logic ...
Page 210: ...198 Serial communication Chapter 12 Data communication ...
Page 226: ...214 Serial communication modules SCM Chapter 13 Hardware modules ...
Page 230: ...218 Terminal diagrams Chapter 14 Diagrams Figure 87 REL 501 C1 with DC switch ...
Page 234: ...222 Terminal diagrams Chapter 14 Diagrams ...
Page 237: ......