160 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 40: Connection Schematic for 3-Phase Network without Neutral Conductor with Star Point
Grounded on the Source Side for Power Measurement with the 2-Wattmeter Method for
U
LL
≤
400 V
RMS
and u
LL
≤
400 V
RMS
Table 47: Legend for Figure “Connection Schematic for 3-Phase Network without Neutral Conductor
with Star Point Grounded on the Source Side for Power Measurement with the 2-Wattmeter
Method for U
LL
≤
400 V
RMS
and u
LL
≤
400 V
RMS
”
No. Explanation
1 Generator:
Generator or transformer in Y connection, with star point grounding
2 Loads with impedances (Zx):
- Load connection: in
∆
connection
- Load type: symmetrical or asymmetrical
3 Loads with impedances (Zx):
- Load connection: in Y connection
- Load type: symmetrical or asymmetrical
Note that an asymmetrical load leads to a star point shift in the load.
4 Connection terminal N:
Reference potential for all voltage inputs and differential current inputs