Monitored Data; Technical Data; Low-Voltage Ride-Through Protection Lvrtptuv; Identification - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.5.7.10
4.5.7.11
4.5.8
4.5.8.1
816

Monitored data

Table 773: OEPVPH Monitored data
Name Type
START_DUR FLOAT32
T_ENARESTART INT32
VOLTPERHZ FLOAT32
OEPVPH Enum

Technical data

Table 774: OEPVPH Technical data
Characteristic
Operation accuracy
1)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite-time mode
Operate time accuracy in inverse-time mode
1) Includes the delay of the signal output contact

Low-voltage ride-through protection LVRTPTUV

Identification

Function description
Low-voltage ride-through protection
Values (Range) Unit
0.00...100.00 %
0...10000 s
0.00...10.00 pu
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
±3.0% of the set value
Frequency change:
Typically 200 ms
Voltage change:
Typically 40 ms
Typically 40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±50 ms
IEC 61850 IEC 60617
identification identification
LVRTPTUV U<RT
1MRS759142 C
Description
Ratio of start time /
operate time (in %)
Estimated time to reset of
block restart
Excitation level, i.e U/f
ratio or Volts/Hertz
Status
ANSI/IEEE C37.2
device number
27RT
REX640
Technical Manual