ABB SACE Tmax XT2 - Measuring Measure

1SDH002031A1002 ECN000092998 Rev. B SACE Tmax XT2 – XT4 | 100
27 - Measuring Measure
List
The Measuring measurements are:
Name
Description
Page
Real-time voltages
Real-time measurements of line-to-line voltages and
currents
100
Real-time powers
Real-time measurements of active, reactive, apparent
phase and total powers
100
Real-time frequency
Measurement of the grid frequency
100
Openings
List of trips (TRIP) for voltage, frequency, and power
protections
101
Min-Max-Avg
measurements
Log of minimum, maximum and average voltages and
powers, recorded with an range that can be set
101
Peak factor
Real-time measurement of the current peak factor
102
Power Factor
Real-time measurement of the power factor
102
Energy counters
Measurement of active, reactive, apparent energies
102
With the Ekip Synchrocheck module, the related associated measures are activated (page 161).
Real-time
measurements
Real-time voltages, available in the Summary pages, are the real-time measurements of line-to-
line and phase voltages expressed in effective value.
The display, measurement range and performance depend on the rated voltage set (Un).
Real-time powers, available in the Summary pages, are the real-time measurements of the total
and phase active powers.
The display, measurement range and performances depend on rated voltage set (Un) and on the
rated current defined by the rated size of the Trip unit (In). Moreover, the reference changes
based on the type of measurement:
 Sn for total powers (Sn = In * Un * √3).
 Pn for phase powers (Pn = In * Un / √3).
NOTE: phase voltages and powers are available with CB 4P and 3P + N
Measurement
Measurement
range (min-max)
Normal operating
range
Accuracy of
detected
value
(1)
Line-to-line voltages
5 V .. 1.25 Un
100 .. 690 V
0.5 %
Phase voltages
5 V .. 1.25 Un
50 .. 400 V
0.5 %
Grid frequency
30 .. 80 Hz
(2)
f -10 % .. f +10 %
(4)
0.1 %
(3)
Total active, reactive and
apparent power
|Pmin .. Pmax|
(5)
|0.3 .. 1.2 Sn|
2 %
(3)
Active, reactive and
apparent phase power
|Pmin.. Pmax|
(5)
|0.3 .. 1.2 Pn|
2 %
(3)