ABB XT7, Руководство по эксплуатации и обслуживанию

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ABB | SACE Tmax XT
Ekip Touch - Measurements | 1 - Standard Measurements 109 | © 2020 ABB | 1SDH001821A1002 - ECN000135670
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 109
Events
List of events, status changes, alarms, recorded by the Trip unit 109
Trip
List of current protection trips (TRIP) 109
Min-Max measurements
History of minimum and maximum currents, recorded at a settable
interval
111
Maintenance CB status: contact wear and last maintenance 112
Operation counters Number of mechanical and electrical operations 112
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):
Measurement
Monitor time
(min-max) Normal operating
range Accuracy of
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 and Ekip Touch Measuring 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 116
(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
Type of measurement
Measurement <
min value Measurement <
max value “_ _ _” displayed:
(not available) due to
Internal earth fault and
phase currents
. . . . > [64 In] Sensors disconnected
External earth fault
current
. . . . > [4 In toroid]
Toroid not activated and/
or disconnected
Residual current . . . . > 32 A
Toroid not activated and/
or disconnected