118 Connect Devices
WAGO-I/O-SYSTEM 750 XTR
750-495/040-00x 3-Phase Power Measurement Module 690 V
Manual
Version 1.2.0
Figure 27: Connection Schematic for Ungrounded 3-Phase Network with Neutral Conductor for
Power Measurement and Voltage Measurement on 3 Line Conductors for U
LN
≤
400 V
RMS
and u
LN
≤
400 V
RMS
Table 34: Legend for Figure “Connection Schematic for Ungrounded 3-Phase Network with Neutral
Conductor for Power Measurement and Voltage Measurement on 3 Line Conductors for
U
LN
≤
400 V
RMS
and u
LN
≤
400 V
RMS
”
No. Explanation
1 Generator:
Generator or transformer in Y connection, without grounding
2 Loads with impedances (Zx):
- Load connection: in Y connection
- Load type: symmetrical (I
N
= 0) or asymmetrical (I
N
≠ 0)
3 Current transformer for current measurement in the neutral conductor
(optional)
4 Connection terminal N:
Reference potential for all voltage inputs and differential current inputs