ABB | SACE Tmax XT
Ekip Touch - Measurements | 5 - Network Analyzer
125 | © 2020 ABB | 1SDH001821A1002 - ECN000135670
THD Voltages and Currents
Certain counters relating to harmonic distortion are available in the
Counters
-
Day
-
1 and Counters
-
Cumulative
submenus:
Counters (Swells Long)
Description
THD Voltages
Counts the total number of minutes in which total distortion exceeds
current threshold
THD Threshold
THD Current
Counts the total number of minutes in which total distortion exceeds
voltage threshold
THD Threshold
NOTE:
the counters saturate at 65535 minutes (45 days); they can be reset by a service
connector command (via Ekip Connect) or via communication from the system bus
Additional List
Counters (Swells Long)
Description
Actual minutes
THD Current
count for the current day [min]
Actual [day -2 ... day -7]
number of THD C.
THD Current
count of the last seven days of activity, calculated using
the internal clock of the unit
Counters (Swells Long)
Description
Actual minutes
THD Voltages
count for the current day [min]
Actual [day -2 ... day -7]
number of THD C.
THD Voltages
count of the last seven days of activity, calculated using
the internal clock of the unit
Waveforms
The
Network Analyzer
-
Waveforms
menu provides graphic representations of:
• phase currents L1, L2, L3, Ne (for units configured with 4 phases)
• line-to-line voltages V12, V23, V31
When one of the available quantities is selected, Ekip Touch acquires and displays the waveform
Figure 36
The detected waveform and the value at the time of selection are displayed in the window that appears. A
new waveform and the relative measurement can be acquired with the Refresh command (1).
Harmonics
The waveform window will propose the
Harmonics
(2) command if harmonic analysis of currents and/or
voltages has been selected. This command accesses the histogram of the harmonics (relating to the grid
frequency set in the menu) that make up the waveform.
Figure 37
Touch the sides of the display to scroll the harmonics after (3) and before (4) the selected harmonic, displayed
on a flashing graph with value shown in the center of the page. The command for exiting the page is at the
top left (5).
