Beckhoff SCT Series Documentation page 76

Application example
• The current is measured via 4 current transformers (e.g. from the Beckhoff SCT series) and the
connections I , I , I
L1 L2
Fig. 56: 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.
76
and I (star point of the current transformers).
L3 N
Version: 1.1 SCTxxxx