GUID-E65CE996-C0CE-4620-8E01-A96896E62802 v1
Table 49. Power swing detection, blocking and unblocking ZMBURPSB
Function Range or value Accuracy
Reactive reach
(0.10-3000.00) W/phase
±2.0% static accuracy
Conditions:
Voltage range: (0.1-1.1) x U
r
Current range: (0.5-30) x I
r
Angle: at 0 degrees and 85 degrees
Resistive reach
(0.10–1000.00) W/loop
Power swing detection operate time (0.000-60.000) s ±0.2% or ±10 ms whichever is greater
Second swing reclaim operate time (0.000-60.000) s ±0.2% or ±20 ms whichever is greater
Minimum operate current, Ph-E (5-1000)% of IBase ±1.0% of I
r
SEMOD171935-5 v5
Table 50. Power swing logic PSLPSCH
Function Range or value Accuracy
Permitted maximum operating time
difference between higher and lower
zone
(0.000 — 60.0000) s ±0,2% or ±15 ms whichever is greater
Delay for operation of underreach
zone with detected difference in
operating time
(0.000 — 60.0000) s ±0,2% or ±15 ms whichever is greater
Conditional timer for sending the CS
at power swings
(0.000 — 60.0000) s ±0,2% or ±15 ms whichever is greater
Conditional timer for tripping at
power swings
(0.000 — 60.0000) s ±0,2% or ±15 ms whichever is greater
Timer for blocking the overreaching
zones trip
(0.000 — 60.0000) s ±0,2% or ±15 ms whichever is greater
GUID-88E02516-1BFE-4075-BEEB-027484814697 v2
Table 51. Pole slip protection PSPPPAM
Function Range or value Accuracy
Impedance reach (0.00 - 1000.00)% of Zbase ±2.0% of U
r
/I
r
Zone 1 and Zone 2 trip counters (1 - 20) -
SEMOD175136-2 v9
Table 52. Out-of-step protection OOSPPAM
Function Range or value Accuracy
Impedance reach (0.00 - 1000.00)% of Zbase ±2.0% of U
r
/(√3 ⋅ I
r
)
Rotor start angle (90.0 - 130.0) degrees ±5.0 degrees
Rotor trip angle (15.0 - 90.0) degrees ±5.0 degrees
Zone 1 and Zone 2 trip counters (1 - 20) -
Line differential protection RED670
1MRK 505 379-BEN N
90 Hitachi Power Grids
© Copyright 2017 Hitachi Power Grids. All rights reserved
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