Loss Of Phase, Undercurrent Phptuc - ABB RELION 620 Series Technical Manual

Protection functions
4.1.9.8 Monitored data
Table 354: LOFLPTUC Monitored data
Name Type
START_DUR FLOAT32
LOFLPTUC Enum
4.1.9.9 Technical data
Table 355: LOFLPTUC Technical data
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
4.1.9.10 Technical revision history
Table 356: LOFLPTUC Technical revision history
Technical revision
B
C
4.1.10

Loss of phase, undercurrent PHPTUC

4.1.10.1 Identification
Function description
Loss of phase, undercurrent
358
Values (Range) Unit
0.00...100.00 %
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured current: f
Hz
±1.5% of the set value or ±0.002 × I
Typically 300 ms
Typically 40 ms
Typically 1.04
<35 ms
±1.0% of the set value or ±20 ms
Change
Internal improvement
Internal improvement
IEC 61850
identification
PHPTUC1
1MRS757644 H
Description
Ratio of start time / op-
erate time
Status
n
IEC 60617 ANSI/IEEE C37.2
identification device number
3I< 37
Technical Manual
±2
n
620 series