Measuring Measure - ABB SACE Tmax XT2 User Manual

27 - Measuring Measure

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