frako EM-PQ 2500, Руководство по эксплуатации

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53
Configuration - measurement
Illu. Example for current measurement using 3
current converters in a 3 phase 4 conductor net-
work.
A connection diagram does not have
to be configured for measurement in-
puts V4 and I4.
C
Connection diagram for current
measurement
You can select between the following connec-
tion diagrams for current measurement:
3p4w - 3 phase 4 conductor, 3 current conv.
3p5w - 3 phase 4 conductor, 4 current conv.
The fourth current transformer can be
used for measuring the neutral
conductor e.g.
3p2i - 3 phase 4 conductor, 2 current conv.
For networks under symmetric load.
3p2i0 - 3 phase 3 conductor, 2 current conv.
Aron connection for networks without
a neutral conductor. The third current
will be calculated.
1p2i - 1 Phasen 2 Leiter, 2 Stromwandler
Factory pre-setting: 3p4w