Ekip Measuring Measurements - ABB SACE Emax 2 Manual

2 - Ekip Measuring Measurements

Instantaneous measurements Instantaneous currents, available in the Summary pages, are real time measurements of the line-to-line and
39 | © 2019 ABB | 1SDH001316R1002 - ECN000086501 - Rev. A
List The Measuring measurements are
Condition
Instantaneous voltages
Instantaneous powers
Instantaneous frequency
Trip
Min-Max-Med measurements
Peak factor
Power factor
Energy counters
The relative associated measurements are activated by means of the Ekip Synchrocheck module.
phase voltages expressed in root-mean-square value.
Representation, measuring range and performance depend on the set rated voltage (Un).
Available in the Summary pages, the instantaneous powers are real time measurements of the phase and
total active powers.
Representation, measuring range and performance depend on the set rated voltage (Un) and on the rated
current defined by the rated size of the Trip unit (In); in addition, the reference changes on the basis of the
type of measurement:
• Sn for total powers (Sn = In * Un * √3).
• Pn for phase powers (Pn = In * Un / √3).
NOTE: the phase powers and voltages are available with 4P and 3P + N CBs
Measurement
Line-to-line voltages
(6)
Phase voltages
Line frequency
Total active, reactive and
apparent power
(7)
Active, reactive and
apparent phase power
(1)
the accuracies refer to normal operating ranges, as established by IEC 61557-12
(2)
available for voltage values of over 30 V (with Un < 277 V) or 60 V (with Un > 277 V)
(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)
45 to 55 Hz with set frequency = 50 Hz; 54 to 66 Hz with f = 60 Hz
(5)
Pmin = 0,5 In x 5 V; Pmax= 3 x 16 In x 900 V
(6)
the higher line-to-line voltages 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)
without transformers; 0.7 % with class 0.2 external transformers
(9)
without transformers; with transformers, multiply the min and max values for the transformer ratio between
primary and secondary voltages
Access
Phase and line-to-line voltage measurements in real time
Real time measurements of the active, reactive, apparent phase and
total powers
Measurement of the line frequency
List of trips (TRIP) due to voltage, frequency, power protections
History of minimum, maximum and mean voltages and powers
recorded within a settable range
Real time measurement of the peak factor of the currents
Real time measurement of the power factor
Measurement of active, reactive, apparent energy
Monitor time Normal
(min-max) operating range
5 V ÷ 900 V 100 ÷ 690 V
(9)
5 V ÷ 900 V 50 ÷ 400 V
(9)
30 ÷ 80 Hz f -10 % ÷ f +10 %
(2)
|Pmin ÷ Pmax| |0,3 ÷ 1,2 Sn|
(5)
|Pmin ÷ Pmax| |0,3 ÷ 1,2 Pn|
(5)
ABB | SACE Emax 2
Accuracy of
value read (1)
0.5 %
(8)
0.5 %
(8)
0,1 %
(4) (3)
2 %
(3)
2 %
(3)
Measurements | 2 - Ekip Measuring Measurements