Page 119 - Sace Emax 2 Manual for design engineers

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:
Accuracy of
Measurement Monitor time (min-max) Normal operating range
read value
Standard IEC61557-12,
Phase currents (6)(8) 0,004 ÷ 64 In 0,5 % (1)
tables 20-22
Standard IEC61557-12,
Internal earth fault current (2) 0,08 ÷ 64 In 0,5 % (1)
table 20
Line frequency 30 ÷ 80 Hz (3) fn ± 10 % (4) ± 0,02 Hz
Total active and apparent |Pmin ÷ Pmax| (5) Standard IEC61557-12, 1 % (1)
power (7) tables 8-11-14
Active and apparent phase (5) Standard IEC61557-12, (1)
power |Pmin ÷ Pmax| tables 8-11-14 1 %
Total active and apparent 1 kWh ÷ 2 TWh; 1 kVARh ÷ Standard IEC61557-12, 1 % (1)
energy 2 TVARh; 1 kVAh ÷ 2 TVAh tables 8-11-14
Standard IEC61557-12,
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 IEC61557-12):
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 to
Temperature
+70°C; Class: K70
Up to 90% relative humidity without condensation; From
humidity and altitude
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 IEC61557 12 information page,
which can be consulted in the About menu

Figure 28

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)

117 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Measurements | 3 - Class 1 Power & Energy Metering