1SDH002031A1002 ECN000092998 Rev. B SACE Tmax XT2 – XT4 | 103
28 - Class 1 Power & Energy Metering
The Class 1 Power & Energy Metering package allows obtaining higher measurement accuracy
for the following dimensions:
Measurement range
(min-max)
Accuracy of
detected value
IEC61557-12 standard,
tables 20-22
IEC61557-12 standard,
table 20
Total active and
apparent power
IEC61557-12 standard,
tables 8-11-14
Active and apparent
phase power
IEC61557-12 standard,
tables 8-11-14
Total active and
apparent energy
1 kWh .. 2 TWh;
1 kVARh .. 2 TVARh;
1 kVAh .. 2 TVAh
IEC61557-12 standard,
tables 8-11-14
IEC61557-12 standard,
table 27
NOTES:
(1) accuracy refers to normal operating ranges and conditions according to IEC
61557-12, for each declared dimension and class
(2) Available with LSIG versions
(3) Available for voltages greater than 30 V (with Un < 277 V) or 60 V (with Un
277 V)
(4) 45 .. 55 Hz with fn = 50 Hz; 54 .. 66 Hz with fn = 60 Hz
(5) Pmin = 0.5 In x 5 V; Pmax = 3 x 16 In x 690 V
Functional
characteristics
The measurement performance of the Class 1 Power & Energy Metering package are
guaranteed in the following conditions (from table 43 of the IEC61557-12 standard):
Measurement device classification (PMD)
according to chapter 4.3 of the standard
Operating: T= -25 °C .. +70 °C;
Storage: T = -30 °C .. +70 °C;
Class: K70
Relative humidity up to 90% without
condensation; from 0 to 2000 meters
Performance class for power and active energy
The Class 1 Power & Energy Metering package activates the information page IEC61557-12,
which can be viewed in the Information menu (page 30).
The page shows the activation status of the Class 1 Power & Energy Metering package
(Active/Inactive) and the serial numbers of some accessories mounted on the CB specifically to
respond to the characteristics of the package (assembly of electronic units and internal current
sensors)