Designation of the protective functions according to CEI 0-21
Device parameters acc. to CEI 0-21
Overvoltage >S1 1st overvoltage med. (59 S1)
Overvoltage >S2 2nd overvoltage (59 S2)
Undervoltage <S1 1st undervoltage (27 S1)
Undervoltage <S2 2nd undervoltage (27 S2)
Overfrequency >S1 1st overfrequency (81>S1)
Overfrequency >S2 2nd overfrequency (81>S2)
Underfrequency <S1 1st underfrequency (81<S1)
Underfrequency <S2 2nd underfrequency (81<S2)
Measurement screen
The initial screen shows the measured values of the real time line-to-neutral voltages. Use the arrow buttons to switch between the real time
line-to-neutral voltages and the 10-min average line-to-neutral voltages.
Real time line-to-neutral voltages
(L-N)
10-min average line-to-neutral
voltages (L-N)
Menu structure
The following tables show the submenu structure and configuration possibilities as well as the pre-settings according to
CEI 0-21, which can be loaded in the submenu “General settings” -> “Load settings”. Additionally, 5 sets of self-defined pre-settings can
be saved in the memory and loaded by the user.
Submenu: Nominal voltage
Contents of submenu Configuration possibilities Step size CEI 0-21
Measuring principle [3L-N], [3L-L], [1L-N] 3L-N
Nominal voltage [100] - [230.9] V L-N / [173.2] - [400.0] V L-L 0.1 V 230 V L-N
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