Current Measurement On A Load; Figure 22: Current Measurement On A Motor With Current Transformers (Left) - WAGO 750-495/040-00 Series Manual

100 Connect Devices
7.4.3

Current Measurement on a Load

For measuring the currents of a 3-phase load, connect it to CAGE CLAMP
connections I1+ and I1−, I2+ and I2− and I3+ and I3− via current transformers. If
the neutral conductor current is also to be measured, connect it to IN+ and IN−
via current transformers. These are thus differential inputs (+ and −).
With the Rogowski coil version, the connection is made not via current
transformers, but rather via Rogowski coils.
Complete measured values (frequency, power, phase angle etc.) are only
available if the voltage paths and current paths are connected. See also the
sections "Power Measurement with 4-Wire Connection on Y Networks" and
"Power Measurement with 3-Wire Connection on Y/Δ Networks."
Figure 22: Current Measurement on a Motor with Current Transformers (Left) and Rogowski Coils
(Right)
Pos : 95 /D okumentation allgemei n/Glieder ungs elemente/---Seitenwechs el--- @ 3\mod_1221108045078_0.doc x @ 21810 @ @ 1
Manual
Version 1.2.0
750-495/040-00x 3-Phase Power Measurement Module 690 V
WAGO-I/O-SYSTEM 750 XTR
®