ABB RELION REX640 - 10.2 Voltage total harmonic distortion, DC component (THD, DC) and individual harmonics VHMHAI (ANSI PQM VTHD,VDC); 10.2.1 Identification; 10.2.2 Function block; 10.2.3 Functionality

10.2 Voltage total harmonic distortion, DC component
(THD, DC) and individual harmonics VHMHAI (ANSI
PQM VTHD,VDC)
10.2.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Voltage total harmonic distortion,
DC component (THD, DC) and indi-
vidual harmonics
VHMHAI PQM3VH PQM VTHD,VDC
10.2.2 Function block
Figure 963: Function block
10.2.3 Functionality
Harmonic voltage values are available as measurements for each harmonic and THD.
There are also direct current component and fundamental frequency values. The
values of three phases are calculated separately.
Power quality measurement functions
1MRS759142 F
1820 REX640
Technical Manual