Application example
SCT7xxx
44
Version: 1.2
• The current is measured via 4 current transformers (e.g. from the Beckhoff
series) and the
connections I
L1
, I
L2
, I
L3
and I
N
(star point of the current transformers).
Fig. 24: EL3453, power measurement at a machine
Negative power values
If negative power values are measured on a circuit, please check whether the associated current
transformer circuit is connected correctly.
