ABB Relion 620 Series - Loss of Phase, Undercurrent PHPTUC

4.1.9.8 Monitored data
Table 354: LOFLPTUC Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time / op-
erate time
LOFLPTUC Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.1.9.9 Technical data
Table 355: LOFLPTUC Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2
Hz
±1.5% of the set value or ±0.002 × I
n
Start time Typically 300 ms
Reset time Typically 40 ms
Reset ratio Typically 1.04
Retardation time <35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
4.1.9.10 Technical revision history
Table 356: LOFLPTUC Technical revision history
Technical revision Change
B Internal improvement
C Internal improvement
4.1.10 Loss of phase, undercurrent PHPTUC
4.1.10.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Loss of phase, undercurrent PHPTUC1 3I< 37
Protection functions 1MRS757644 H
358 620 series
Technical Manual