ABB Relion REC615 - Frequency Measurement FMMXU

Name Type Values (Range) Unit Description
3=high-high
4=low-low
8.1.7.6 Technical data
Table 612: RESVMMXU Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured voltage: f/f
n
=
±2 Hz
±0.5 % or ±0.002 × U
n
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
RMS: No suppression
8.1.7.7 Technical revision history
Table 613: RESVMMXU Technical revision history
Technical revision Change
B -
C
Residual voltage angle and demand value
added to Monitored data view
D
Internal improvement
E
Internal improvement
8.1.8 Frequency measurement FMMXU
8.1.8.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Frequency measurement FMMXU F F
8.1.8.2 Function block
Figure 298: Function block
Measurement functions
1MRS758755 C
592 REC615 & RER615
Technical Manual