ABB RET670 - Page 61

Table 36. Power swing detection ZMRPSB
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 (5-30)% of IBase ± 1.0% of I
r
Table 37. 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
Table 38. 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) -
Table 39. 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) -
Transformer protection RET670 2.0
1MRK 504 141-BEN C
Product version: 2.0
ABB 61