MI 3321 MultiservicerXA
Switchgear testing operating mode
161
Voltage and rotary filed measurement procedure
Select the
Voltage
single test.
The measurement starts immediately after entering in the Voltage menu.
Connect
three wire test cable to the TP1 test port on the instrument.
Connect
L and N and PE wires of the three wire test cable to terminals to be
tested (L, N, PE for single phase and L1, L2, L3 for three phase systems)
Press
SAVE
(F4) key for storing the result (optional).
Examples of voltage measurement results
Displayed results for single phase system:
Ul-n ........................ Voltage between phase and neutral conductors,
Ul-pe ...................... Voltage between phase and protective conductors,
Un-pe ..................... Voltage between neutral and protective conductors,
f.............................. frequency.
Displayed results for three-phase system:
UL1-L2 ................... Voltage between phases L1 and L2,
UL1-L3 ................... Voltage between phases L1 and L3,
UL2-L3 ................... Voltage between phases L2 and L3,
Phase rotation: 1.2.3 .... Correct connection
– CW rotation sequence,
Phase rotation: 2.1.3 .... Invalid connection
– CCW rotation sequence,
f.............................. frequency.
Notes:
Consider any displayed warning before starting test!
10.2.7 RCD test
Description in chapter
9.2.6 RCD tests
can be used as reference.
10.2.8 PRCD test
Description in chapter
6.2.10 PRCD test
can be used as reference.
10.2.9 Functional test
In its simplest form a functional check is simply a check to ensure that the switchboard
is working properly.
