Parameter Values (Range) Unit Step Default Description
Voltage level 9 0.00...1.20 xUn 0.01 0.90 9th voltage coordi-
nate for defining
LVRT curve
Voltage level 10 0.00...1.20 xUn 0.01 0.90 10th voltage coor-
dinate for defining
LVRT curve
Recovery time 1 0...300000 ms 1 500 1st time coordinate
for defining LVRT
curve
Recovery time 2 0...300000 ms 1 1000 2nd time coordi-
nate for defining
LVRT curve
Recovery time 3 0...300000 ms 1 10000 3rd time coordinate
for defining LVRT
curve
Recovery time 4 0...300000 ms 1 10000 4th time coordi-
nate for defining
LVRT curve
Recovery time 5 0...300000 ms 1 10000 5th time coordinate
for defining LVRT
curve
Recovery time 6 0...300000 ms 1 10000 6th time coordinate
for defining LVRT
curve
Recovery time 7 0...300000 ms 1 10000 7th time coordinate
for defining LVRT
curve
Recovery time 8 0...300000 ms 1 10000 8th time coordinate
for defining LVRT
curve
Recovery time 9 0...300000 ms 1 10000 9th time coordinate
for defining LVRT
curve
Recovery time 10 0...300000 ms 1 10000 10th time coordi-
nate for defining
LVRT curve
4.5.8.9 LVRTPTUV Monitored data
Table 858: LVRTPTUV Monitored data
Name
Type Values (Range) Unit Description
LVRTPTUV Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.5.8.10 Technical data
Table 859: LVRTPTUV Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured
voltage:
f
n
±2 Hz
±1.5% of the set value or ±0.002 × U
n
Table continues on the next page
1MRS759142 F Protection functions
REX640
Technical Manual
907
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