MI 3152(H)
Eurotest
XC (2,5 kV)
Tests and measurements
92
Stop the measurement.
Save results (optional).
Figure 7.4: Example of Voltage measurement in single-phase system
Figure 7.5: Examples of Voltage measurement in three-phase system
Measurement results / sub-results
Single-phase TN/TT system
Uln
voltage between phase and neutral conductors
Ulpe
voltage between phase and protective conductors
Unpe
voltage between neutral and protective conductors
Freq
frequency
Single-phase IT earthing system
U12
voltage between phases L1 and L2
U1pe
voltage between phase L1 and PE
U2pe
voltage between phase L2 and PE
Freq
frequency
Three-phase TN/TT and IT system
U12
voltage between phases L1 and L2
U13
voltage between phases L1 and L3
U23
voltage between phases L2 and L3
Freq
frequency
Field
1.2.3
- correct connection
– CW rotation sequence
3.2.1
- invalid connection
– CCW rotation sequence