ABB RELION Series, Technical Manual

Page: 685 / 804

10.2.8 Monitored data
Table 689: VMHAI Monitored data
Name Type Values (Range) Unit Description
Max demand THD
UL1
FLOAT32 0.00...500.00 % Maximum demand THD
for phase A
Max demand THD
UL2
FLOAT32 0.00...500.00 % Maximum demand THD
for phase B
Max demand THD
UL3
FLOAT32 0.00...500.00 % Maximum demand THD
for phase C
Time max dmd THD
UL1
Timestamp Time of maximum
demand THD phase A
Time max dmd THD
UL2
Timestamp Time of maximum
demand THD phase B
Time max dmd THD
UL3
Timestamp Time of maximum
demand THD phase C
3SMHTHD_A FLOAT32 0.00...500.00 % 3 second mean value of
THD for phase A
DMD_THD_A FLOAT32 0.00...500.00 % Demand value for THD
for phase A
3SMHTHD_B FLOAT32 0.00...500.00 % 3 second mean value of
THD for phase B
DMD_THD_B FLOAT32 0.00...500.00 % Demand value for THD
for phase B
3SMHTHD_C FLOAT32 0.00...500.00 % 3 second mean value of
THD for phase C
DMD_THD_C FLOAT32 0.00...500.00 % Demand value for THD
for phase C
10.2.9 Technical revision history
Table 690: VMHAI Technical revision history
Technical revision Change
B Internal improvement.
C Internal improvement.
10.3 Voltage variation PHQVVR
10.3.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Voltage variation PHQVVR PQMU PQMV
1MRS758755 A
Section 10
Power quality measurement functions
REC615 and RER615 679
Technical Manual