MI 3101 EurotestAT: Measurements
Voltage, frequency, phase sequence
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5.6 Voltage, frequency and phase sequence
Voltage and frequency measurement is always active in the terminal voltage monitor. In
the special
voltage
menu the measured voltage, frequency and information about
detected three-phase connection can be stored. Phase sequence measurement conforms
to the EN 61557-7 standard.
See
4.2 Single test
for keys functionality
Figure 5.27: Voltage in single
phase system
Test parameters for voltage measurement
There are no parameters.
Circuits for voltage measurement
L3
L2
L1
N
PE
N
/L
2
N
/L
2
L
/L
1
L
/L
1
P
E
/L
3
P
E
/L
3
result 1.2.3
result 2.1.3
Figure 5.28: Connection of universal test cable and optional adapter in three-phase system
L1
L2
L3
N
PE
R
E
Ro
L
PE
N
L/L
1
N/L2
PE/L3
N/
L
2
L
/L
1
PE
/L
3
Figure 5.29: Connection of plug commander and universal test cable in single-phase
system
