Power Swing Detection Zmrpsb (68); Application - ABB RET670 Applications Manual

Section 3
IED application
Name Values (Range)
RFltRevPG 1.00 - 9000.00
IMinPUPP 5 - 500
IMinPUPG 5 - 500
Table 77: FRPSPDIS (21) Group settings (advanced)
Name Values (Range)
TimerPP Disabled
Enabled
tPP 0.000 - 60.000
TimerPE Disabled
Enabled
tPG 0.000 - 60.000
3.6.11
3.6.11.1
356
Unit Step
ohm/l 0.01
%IB 1
%IB 1
Unit Step
- -
s 0.001
- -
s 0.001

Power swing detection ZMRPSB (68)

Function description
Power swing detection

Application

General
Various changes in power system may cause oscillations of rotating units. The most
typical reasons for these oscillations are big changes in load or changes in power
system configuration caused by different faults and their clearance. As the rotating
masses strive to find a stable operate condition, they oscillate with damped oscillations
until they reach the final stability.
The extent of the oscillations depends on the extent of the disturbances and on the
natural stability of the system.
The oscillation rate depends also on the inertia of the system and on the total system
impedance between different generating units. These oscillations cause changes in
phase and amplitude of the voltage difference between the oscillating generating units
Default Description
100.00 Fault resistance reach, Ph-G, reverse
10 Minimum pickup delta current (2 x current of
lagging phase) for Phase-to-phase loops
5 Minimum pickup phase current for Phase-to-
ground loops
Default Description
Disabled Operation mode Disable/Enable of Zone
timer, Ph-Ph
3.000 Time delay to trip, Ph-Ph
Disabled Operation mode Disable/ Enable of Zone
timer, Ph-G
3.000 Time delay to trip, Ph-E
IEC 61850 IEC 60617
identification identification
ZMRPSB
SYMBOL-EE V1 EN
1MRK504116-UUS C
ANSI/IEEE C37.2
device number
68
Zpsb
Application manual