Page 43 - ACB-E1.2-E2.2-E4.2-E6.2

P. 43

ABB | SACE Emax 2

3 - Class 1 Power & Energy Metering

List and performance Presence of the Class 1 Power & Energy Metering package allows higher measuring accuracy to be
obtained for the following quantities:
Normal operating Accuracy of
Measurement Monitor time (min-max)
range read value
Standard IEC 61557-12,
Phase currents (6) (8) 0,004 ÷ 64 In 0,5 % (1)
tables 20-22
Internal earth fault 0,08 ÷ 64 In Standard IEC 61557-12, 0,5 % (1)
current (2) table 20
Line frequency 30 ÷ 80 Hz (3) fn ± 10 % (4) ± 0,02 Hz
Total active and |Pmin ÷ Pmax| (5) Standard IEC 61557-12, 1 % (1)
apparent power (7) tables 8-11-14
Active and apparent (5) Standard IEC 61557-12, (1)
phase power |Pmin ÷ Pmax| tables 8-11-14 1 %
Total active and 1 kWh ÷ 2 TWh; 1 kVARh ÷ 2 TVARh; Standard IEC 61557-12, (1)
apparent energy 1 kVAh ÷ 2 TVAh tables 8-11-14 1 %
Standard IEC 61557-12,
Power factor 0,5 ÷ 1 1% (1)
table 27
(1) the accuracy values refer to the normal operating intervals and conditions established by IEC
61557-12, for each quantity and class declared
(2) available with LSIG versions
(3) available for voltage values of over 30 V (with Un < 277 V) or 60 V (with Un ≥ 277 V)
(4) 47 ÷ 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 900 V
(6) the higher phase currents are also available in the Histograms, Measuring instruments and
Measurement summary pages
(7) the higher total powers are also available in the Measuring instruments and Measurement
summary pages
(8) internal phase current; in the presence of an external Neutral, the accuracy of current Ne is 1%

Functional characteristics The measuring performance of the Class 1 Power & Energy Metering package is guaranteed in the
following conditions (from table 43 of standard IEC 61557-12):
Characteristic Value
Classification of performance measuring and
monitoring device (PMD) in accordance with PMD-DD
chapter 4.3 of the standard
Operating: T= -25°C to +70°C; Storage: T = -30°C
Temperature
to +70°C; Class: K70
Up to 90% relative humidity without
humidity and altitude
condensation; From 0 to 2000 meters
Performance class for active energy and power 1

Information page Presence of the Class 1 Power & Energy Metering package activates the IEC 61557-12 information page,
which can be consulted in the About menu

Figure 21

The page shows the activation state of the Class 1 Power & Energy Metering package (Activated/
Deactivated) and the serial numbers of certain accessories installed on the CB for the specific purpose of
conforming to the characteristics of the package (electronic units and internal current sensors)

38 39 40 41 42 43 44 45 46 47 48