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Measurements
1 - Standard Measurements
Instantaneous currents The instantaneous currents, available in the Measurements pages, are real time measurements of the phase
38 | © 2019 ABB | 1SDH001316R1002 - ECN000086501 - Rev. A
List The Standard measurements are:
Parameter
Instantaneous currents
Events
Trip
Min-Max measurements
Maintenance
Operation counters
and earth fault currents expressed in root mean square value; the monitor time and performance depend on
the rated current defined by the Rating plug (In):
Measurement
Phase currents
(4)
Internal earth fault current
External earth fault current
Residual current
(2) (5)
(1)
the accuracies refer to normal operating ranges, as established by IEC 61557-12
(2)
available with LSIG versions
(3)
accuracies based on Ekip Touch without Class 1 Power & Energy Metering package; if the Class 1 Power &
Energy Metering package is present and for all other trip unit models, check the indicated performance values
from page 41
(4)
the higher phase currents are also available in the Histograms, Measuring instruments and Measurement
summary pages
(5)
available by activating the presence of sensor S.G.R or Rc
Description
Phase current and earth fault measurements in real time
List of events, status changes, alarms, recorded by the Trip unit
List of current protection trips (TRIP)
History of minimum and maximum currents, recorded at a settable interval
CB status: contact wear and last maintenance
Number of mechanical and electrical operations
Monitor time
(min-max)
0,004 ÷ 64 In
0,08 ÷ 64 In
(2)
0,08 ÷ 4 In
(2) (5)
2 ÷ 32 A
ABB | SACE Emax 2
Normal
Accuracy of
operating range
value read
0,2 ÷ 1,2 In
1%
(3)
0,2 ÷ 1,2 In
2 %
(3)
0,2 ÷ 1,2 In
2 %
5 %
Measurements | 1 - Standard Measurements
(1)
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