ABB RELION REX640, Technical Manual, Page: 927 / 1960

Parameter Values (Range) Unit Step Default Description
Start value df/dt -0.2000...0.2000 xFn/s 0.0001 0.0100 Frequency start val-
ue rate of change
Operate Tm Freq 80...5400000 ms 10 200 Operate delay time
for frequency
Operate Tm df/dt 120...200000 ms 10 400 Operate delay time
for frequency rate
of change
Table 886: FRPFRQ Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Table 887: FRPFRQ Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Reset delay Tm
Freq
0...60000 ms 1 0 Reset delay time
for frequency
Reset delay Tm
df/dt
0...60000 ms 1 0 Reset delay time
for rate of change
4.6.1.9 FRPFRQ Monitored data
Table 888: FRPFRQ Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Start duration
ST_DUR_OFRQ FLOAT32 0.00...100.00 % Start duration
ST_DUR_UFRQ FLOAT32 0.00...100.00 % Start duration
ST_DUR_FRG FLOAT32 0.00...100.00 % Start duration
FRPFRQ Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.6.1.10 Technical data
Table 889: FRPFRQ Technical data
Characteristic Value
Operation accuracy f>/f< ±5 mHz
df/dt ±50 mHz/s (in range |df/dt|
<5 Hz/s)
±2.0% of the set value (in
range 5 Hz/s <
|df/dt| < 15 Hz/s)
Start time f>/f< <80 ms
1
Table continues on the next page
1MRS759142 F Protection functions
REX640
Technical Manual
927