Electricity + Control July 2016

CONTENTS

16

20

34

38

Control systems + automation 4

Impact of energy management on Process Automation Systems Peter Hogg, Schneider Electric

10

Round UP

Drives, motors + switchgear 16

Matching load and servo motor sizes Glyn Craig, Techlyn

20 22

OPINION: Energising energy planning David Claassen, Zest WEG Group

Round UP

Flow measurement + instrumentation 28

Traceability and validation of liquid flow measurands Dr Nicolaus Mathies, Krohne

31

Round UP

Valves + actuators 34

Assessing control valves and their performance Jim Shields, Fluke Corporation

36

Round UP

Energy + enviroFiciency 38 Helping communities adapt to Climate Change – approaches to drought and flood in North-Central Namibia Margaret N Angula and Dian Spear, Adaptation at Scale in Semi-Arid Regions (ASSAR) project 41 Round UP

FEATURES: • Control systems+ automation • Drives,motors+ switchgear • Flowmeasurement+ instrumentation • Valves+ actuators • Energy+ enviroFiciency

Regulars

Cover

1 Comment 13 Cover article 42 A sense of Africa 43 Light+Current 43 Bizz Buzz 47 Social engineers 48 Clipboard

The NanoView from CBI-elec- tric : low voltage is an exciting new energy and water monitoring device suitable for household as well as commercial consumers. Read more on page 13.

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www.electricityandcontrolmagazine.co.za