WAGO-I/O-SYSTEM 750 XTR
Table of Contents
3
750-495/040-00x 3-Phase Power Measurement Module 690 V
Manual
Version 1.2.0
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Table of Contents
Notes about this Documentation ............................................................. 9
Validity of this Documentation................................................................. 9
Subject to Changes .......................................................................... 13
Personnel Qualifications .................................................................. 13
Use of the 750 Series in Compliance with Underlying Provisions ..... 13
Technical Condition of Specified Devices......................................... 14
Disposal ...................................................................................... 14
Electrical and Electronic Equipment ........................................ 14
Packaging ............................................................................... 15
Safety Advice (Precautions) ................................................................. 16
Data Contacts/Local Bus .................................................................. 22
Power Jumper Contacts/Field Supply .............................................. 22
Connectors ............................................................. 23
Operating Elements .............................................................................. 26
Schematic Diagram .............................................................................. 26
Device Data ..................................................................................... 29
Power Supply ................................................................................... 29
Measurement Inputs ........................................................................ 29
Measured Values ............................................................................. 31
Measurement Accuracy ................................................................... 32
Communication ................................................................................ 33
Connection Technology ................................................................... 33
Mechanical Conditions ..................................................................... 33
Climatic Environmental Conditions ................................................... 34
Electrical Isolation ............................................................................ 34
Standards and Guidelines .................................................................... 37
Measurement Principle ......................................................................... 43
Measured Value Overview .................................................................... 43
Description of the Measured Values ..................................................... 49
Measurement Errors ............................................................................. 56
2-Wattmeter Method (Aron Circuit/Blondel’s Theorem) .................... 58