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Ekip Touch - Measurements | 3 - Class 1 Power & Energy Metering
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:
Measurement
Monitor time (min-max)
Normal operating range
Accuracy of
read value
Phase currents
(6)(8)
0,004 ÷ 64 In
Standard IEC61557-12,
tables 20-22
0,5 %
(1)
Internal earth fault current
(2)
0,08 ÷ 64 In
Standard IEC61557-12,
table 20
0,5 %
(1)
Line frequency
30 ÷ 80 Hz
(3)
fn ± 10 %
(4)
± 0,02 Hz
Total active and apparent
power
(7)
|Pmin ÷ Pmax|
(5)
Standard IEC61557-12,
tables 8-11-14
1 %
(1)
Active and apparent phase
power
|Pmin ÷ Pmax|
(5)
Standard IEC61557-12,
tables 8-11-14
1 %
(1)
Total active and apparent
energy
1 kWh ÷ 2 TWh; 1 kVARh ÷ 2
TVARh; 1 kVAh ÷ 2 TVAh
Standard IEC61557-12,
tables 8-11-14
1 %
(1)
Power factor
0,5 ÷ 1
Standard IEC61557-12,
table 27
1%
(1)
(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 chapter 4.3 of the standard
PMD-DD
Temperature
Operating: T= -25°C to +70°C; Storage:
T = -30°C to +70°C; Class: K70
humidity and altitude
Up to 90% relative humidity without
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 IEC61557 12 information page,
which can be consulted in the
About
menu
Figure 34
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)
