WAGO I/O System 750 XTR
Connect Devices 79
750-495/040-010 3-Phase POM 20KV 300A XTR
Manual
Version 1.0.0
Pos: 89 /Serie 750 (WAGO I/O SYSTEM)/Anschließen/Anschlussbeispiele/Analogeingänge/Leistungs-, Spannungs-, Strommessung 750-0495/040-010 @ 35\mod_1561047364614_21.docx @ 548662 @ 2 @ 1
7.4
Measurement of Voltage, Current and Power
Use only standards-compliant sensors, and pay attention to the technical
data
Use only voltage sensors approved per IEC 60044-7 (new version: IEC 61869-7)
and current sensors per IEC 60044-8 (new version: IEC 61869-8), and do so in
accordance with the information in the section “Technical Data.”
Do not confuse the current and voltage connections
When connecting, be sure not to confuse the current and voltage paths. If power
measurements erroneously yield negative power values, check whether you
have connected the corresponding voltage and current sensors in the correct
orientation.
Do not ground sensors
All sensors are internally connected (N) to PE on one side and thus must not be
grounded on the module side, since otherwise ground loops can occur..