Electricity + Control August 2016

CONTENTS

4

14

22

40

Control systems + automation 4

Ultra-fast Communication and Power Supply in a Single Cable Thomas Rettig, Beckhoff

8

Round UP

Electrical protection + safety 14

Lightning and Surge Protection Systems for Free Field Solar Farms Trevor Manas, Pontins

20

Round UP

Temperature measurement 22

Making ‘cents’ in Pasteurisation Benjamin Mlangeni and Natlee Chetty, Endress+Hauser

24 Troyeville Hotel’s Heat Pump pays for Itself in just over Two Months Information provided by Eskom 26 Round UP

Transformers + substations 30

Smart Transformer Condition Monitoring with Smart Meter ‘Rogowski Coils’ Patrick Schuller, LEM

33

Round UP

Energy + enviroFiciency 40

In Conversation With… Peter Middleton talks to ABB’s Tony Duarte Thorium… a Safe Nuclear Fuel Trevor Bench, Steenkampskraal

44 47

Round UP

Regulars

Cover

1 Comment 21 Cover article 48 A sense of Africa 49 Light + Current 49 Bizz Buzz 51 Social engineers 52 Clipboard

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FEATURES: • Control systems+ automation • Electrical protection+ safety

• Temperaturemeasurement • Transformers+ substations • Energy+ enviroFiciency: FocusStandby+ back-up

www.electricityandcontrolmagazine.co.za