Maximum And Minimum Voltage; Maximum And Minimum Power - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

Maximum and Minimum voltage Path
Maximum and minimum power Path
112 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
Main page - Menus - Measurements - Historicals - Measurements
NOTE: for details on the pages, see the chapter Menu pages and menus, and the
paragraph Measurement history, beginning from page 46.
Description
The Maximum and Minimum Voltages are recordings of the measurements of maximum and minimum phase-
to-phase voltages made by the trip unit, and that can be displayed by selecting U Max and U Min in the
menu Historicals - Measurements.
The interval between one measurement and the other can be set through the parameter Monitor time,
available in the menu Historicals.
The recordings can be reset through the command Reset measurements, available in the menu Historicals
- Measurements.
Correlated information
Al measurements are correlated with the following information:
• The time interval since the previous measurement.
• The phase-to-phase voltage to which it refers, and value in Volt.
• The date and time (of the internal clock).
• Graphical representation in the form of a histogram on a time axis.
NOTE:
• If the value is less than 5 V, "..." is shown instead of the Volt values.
• The graphical representation is in reference to 1 Un, with a maximum value of 1.25 Un
• When the parameter Monitor time is modified , the trip unit performs an immediate recording.
Main page - Menus - Measurements - Historicals - Measurements
NOTE: for details on the pages, see the chapter Menu pages and menus, and the
paragraph Measurement history, beginning from page 46.
Description
The maximum and minumun power are the recordings of the measurements of total maximum and minumun
active power made by the trip unit, and that can be displayed by selecting P Max and P Min in the menu
Historicals - Measurements.
The interval between one measurement and the other can be set through the parameter Monitor time,
available in the menu Historicals.
The recordings can be reset through the command Reset measurements, available in the menu Historicals
- Measurements.
NOTE: with external communication, recordings of total, maximum and average reactive and
apparent power measurements are also available.
Correlated information
Al measurements are correlated with the following information:
• The time interval since the previous measurement.
• The value in kW.
• The date and time (referring to the internal clock).
• Graphical representation in the form of a histogram on a time axis.
NOTE:
• If current and voltage are lower than the minimum measurable values, the power measurement
indicates "..." instead of the value in kW.
• The graphical representation is related to 1 Sn, with maximum value of 1.25 Sn.
• If the value is negative, the corresponding bar is represented with different color from those
with positive value.
• When the parameter Monitor time is modified , the trip unit performs an immediate recording.
Ekip Touch protection trip unit | 16 - Ekip Measuring Measurements
ABB | SACE Emax 2