Page 128 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
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
Counts the total number of minutes in which total distortion exceeds
THD Voltages
current threshold THD Threshold
Counts the total number of minutes in which total distortion exceeds
THD Current
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] THD Current count of the last seven days of activity, calculated using
number of THD C. 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] THD Voltages count of the last seven days of activity, calculated using
number of THD C. 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 30

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 31
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).

126 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Measurements | 5 - Network Analyzer