Electricity + Control January 2018

CONTENTS

4

Features

Control systems + automation 4 Industrie 4.0 Meets Building Automation Michel Matuschke, Beckhoff Automation

6 Ageing Systems and Expansion Drive Modernisation Marc Ramsay, Schneider Electric

10 Round UP

Drives, motors + switchgear 16 Load Management Through Utilisation of VSDs on Water Transfer Schemes JP de Wet, W Schoeman, JF van Rensburg, North-West University

22 Round UP

Earthing + lightning protection 24 Surge-Protective Devices for Low-Voltage Power Systems Holger Heckler, Phoenix Contact 27 Lightning protection and education at SA schools is critical Hannes Ackermann, DEHN Africa

29 Round UP

24

Pressure + level measurement + instrumentation 30 Renewable Electricity from Traffic! Clement Mokoenene, Epitome Consulting

34 Twice as easy: On the safe side with differential measurement Florian Burgert, VEGA

36 Round UP

30

Regulars

1 Comment by Ian Jandrell 11 Cover Article 38 Light+Current

39 Social Engineers 40 Not to be missed 40 Brain Block 40 Advertisers 40 Write @ the back

34

2 Electricity + Control

JANUARY 2018