Power Swing Logic Zmrpsl; Application - ABB RET670 Applications Manual

Section 3
IED application
Name Values (Range)
tGF 0.000 - 60.000
IMinPUPG 5 - 30
IBase 1 - 99999
Table 79: ZMRPSB (68) Group settings (advanced)
Name Values (Range)
tP1 0.000 - 60.000
tP2 0.000 - 60.000
tW 0.000 - 60.000
tH 0.000 - 60.000
tR1 0.000 - 60.000
tR2 0.000 - 60.000
3.6.12
3.6.12.1
366
Unit Step
s 0.001
%IB 1
A 1
Unit Step
s 0.001
s 0.001
s 0.001
s 0.001
s 0.001
s 0.001

Power swing logic ZMRPSL

Function description
Power swing logic

Application

Power Swing Logic (ZMRPSL) is a complementary function to Power Swing
Detection (ZMRPSB, 68) function. It enables a reliable fault clearing for different
faults on protected lines during power swings in power systems.
It is a general goal, to secure fast and selective operation of the distance protection
scheme for the faults, which occur on power lines during power swings. It is possible
to distinguish between the following main cases:
• A fault occurs on a so far healthy power line, over which the power swing has
been detected and the fast distance protection zone has been blocked by ZMRPSB
(68) element.
• The power swing occurs over two phases of a protected line during the dead time
of a singlepole auto-reclosing after the Ph-E fault has been correctly cleared by the
Default Description
3.000 Timer for overcoming single-pole reclosing
dead time
10 Minimum operate current in % of IBase
3000 Base setting for current level settings
Default Description
0.045 Timer for detection of initial power swing
0.015 Timer for detection of subsequent power
swings
0.250 Waiting timer for activation of tP2 timer
0.500 Timer for holding power swing PICKUP output
0.300 Timer giving delay to inhibit by the residual
current
2.000 Timer giving delay to inhibit at very slow swing
IEC 61850 IEC 60617
identification identification
ZMRPSL
1MRK504116-UUS C
ANSI/IEEE C37.2
device number
- -
Application manual