METREL MultiServicerXD MI 3325, Инструкция по эксплуатации

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MI 3325 MultiServicerXD Single tests
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Figure 6.105: Examples of Trip-out current measurement result
6.2.30 RCD Auto
– RCD Auto test
Warning!

MI 3325 checks voltage on RCD-PE before running test and disables test in case
the hazardous live voltage is detected. In this case, immediately remove supply
from tested circuit, find, and eliminate problem before any other activity! See
chapter
1.2 Testing potential on TP1-PE terminal for installation tests for more
information.
RCD Auto test function performs a complete RCD test (trip-out time at different residual
currents, trip-out current and contact voltage) in one set of automatic tests, guided by the
instrument.
Figure 6.106: RCD Auto test menu
Test results / sub-results
t I∆N x1, (+)
Step 1 trip-out time (I

=I

N, (+) positive polarity)
t I
∆N x1, (-)
Step 2 trip-out time (I

=I

N, (-) negative polarity)
t I
∆N x5, (+)
Step 3 trip-out time (I

=5

I

N, (+) positive polarity)
t I
∆N x5, (-)
Step 4 trip-out time (I

=5

I

N, (-) negative polarity)
t I
∆N x0.5, (+)
Step 5 trip-out time (I

=½

I

N, (+) positive polarity)
t I
∆N x0.5, (-)
Step 6 trip-out time (I

=½

I

N, (-) negative polarity)
I
∆ (+)
Step 7 trip-out current ((+) positive polarity)
I
∆ (-)
Step 8 trip-out current ((-) negative polarity)
Uc
Contact voltage for rated I

N
Test parameters
Use RCD / PRCD selection [fixed, PRCD, PRCD-S, PRCD-K]
Selectivity Characteristic [G, S]
Type RCD type [AC, A, F, B, B+]