METREL EurotestXE, Instruction Manual

Page: 34 / 114

MI 3102(H) BT Eurotest XE Measurements
34
Voltage measurement procedure

Select the VOLTAGE TRMS function using the function selector keys.

Connect test cable to the instrument.

Connect test leads to the item to be tested (see Figure 5.2 and Figure 5.3 ).

Store voltage measurement result by pressing the MEM key (optional).
Measurement runs immediately after selection of
VOLTAGE TRMS function.
Figure 5.4: Examples of voltage measurement in three-phase system
Displayed results for single phase system:
Uln ........... voltage between phase and neutral conductors
Ulpe ......... voltage between phase and protective conductors
Unpe ........ voltage between neutral and protective conductors
f ................ frequency
Displayed results for three-phase system:
U12 ........... voltage between phases L1 and L2
U13 ........... voltage between phases L1 and L3
U23 ........... voltage between phases L2 and L3
1.2.3 ......... correct connection
– CW rotation sequence
3.2.1 ......... invalid connection
– CCW rotation sequence
f ................ frequency
Displayed results for IT system (MI 3102 BT only):
U12 ........... voltage between phases L1 and L2
U1pe ........ voltage between phase L1 and protective conductor
U2pe ........ voltage between phase L2 and protective conductor
f ................ frequency