ABB Relion REC615 - Unbalance Protection; Negative-Sequence Overcurrent Protection NSPTOC

Name Type Values (Range) Unit Description
operating quan-
tity
MFADPSDE Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.2.7.9 Technical data
Table 411: MFADPSDE 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
Start time
1
Typically 35 ms
Reset time Typically 40 ms
Operate time accuracy ±1.0% of the set value or ±20 ms
4.3 Unbalance protection
4.3.1 Negative-sequence overcurrent protection NSPTOC
4.3.1.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Negative-sequence overcurrent pro-
tection
NSPTOC I2> 46
1
Includes the delay of the signal output contact, results based on statistical distribution of 1000
measurements
1MRS758755 C Protection functions
REC615 & RER615
Technical Manual
409