Page 112 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
Ekip Touch - Measurements

1 - Standard Measurements

List The Standard measurements are:
Parameter Description Page
Instantaneous currents Phase current and earth fault measurements in real time 110
Events List of events, status changes, alarms, recorded by the Trip unit 110
Trip List of current protection trips (TRIP) 110
History of minimum and maximum currents, recorded at a
Min-Max measurements 112
settable interval
Maintenance CB status: contact wear and last maintenance 113
Operation counters Number of mechanical and electrical operations 113

Instantaneous currents The instantaneous currents, available in the Measurements pages, are real time measurements of the phase
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):
Monitor time Normal operating Accuracy of
Measurement
(min-max) range value read (1)
Phase currents (4) 0,004 ÷ 64 In 0,2 ÷ 1,2 In 1% (3)
Internal earth fault current (2) 0,08 ÷ 64 In 0,2 ÷ 1,2 In 2 % (3)
External earth fault current (2) (5) 0,08 ÷ 4 In 0,2 ÷ 1,2 In 2 %
Residual current (2) (5) 2 ÷ 32 A 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 117
(4) the higher phase currents are also available in the Histograms, Measuring instruments and Measurement
summary pages
(5) available by activating the presence of toroid S.G.R or Rc

Special representations

Measurement < Measurement < “_ _ _” displayed:
Type of measurement
min value max value (not available) due to
Internal earth fault and . . . . > [64 In] Sensors disconnected
phase currents
External earth fault Sensor not activated
current . . . . > [4 In sensor] and/or disconnected
Sensor not activated
Residual current . . . . > 32 A
and/or disconnected

110 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Measurements | 1 - Standard Measurements