MC3V-X/10-4
Doc. N°
MO-0355-ING
Microe
ner
- Copyright 20
11
FW
940.09.01.x
Date
06
.0
1
.20
11
Rev.
4
Pag.
6
of
32
2.2 - Operation and Algorithms
2.2.1 - Reference Input Values
Display
Description
Setting Range
Step
Unit
V1
10
kV
Rated Primary voltage of phase V.T.
0.05 -
500 0.01
kV
V2
100
V
Rated Secondary voltage of phase V.T.
50 -
400 0.01
V
Freq
50
Hz
System rated frequency
50 -
60
10
Hz
2.2.2 - Input quantities
2.2.2.1 - Mains Frequency (Freq)
The relay can operate either in 50Hz or 60Hz systems.
The rated Mains Frequency “ Freq “ must be set accordingly.
2.2.2.2 - Phase Voltage inputs
Input voltages are supplied to 3 internal adapting transformers; the rated input voltage (phase-to-
phase) can be programmed in the range (50 - 400)V.
The display shows the measurement of the phase-to-neutral voltages in primary volt according to
the programmed reference input values.