Electricity + Control March 2015

CONTENTS

Control systems and automation 4

Convergence of energy data acquisition and ‘Big Data’… by M Holländer, Beckhoff Automation

8

Round UP

Hazardous areas and safety 12

Substation accident – a case study… by B Gass, Training Manager

15

Round UP

Drives, motors and switchgear 20 Intensive transformation in the engineering profession… by Engineering Council of South Africa (ECSA) 22 Power quality meets operational efficiency… by H Dettmer, Impact Energy 25 Round UP

Plant maintenance, test and measurement 30

Commanding the highest efficiency of core system functions... by S Blanckensee, Enviropower

32

Round UP

Temperature measurement 36 Integrated energy efficiency strategy for deep mine ventilation and refrigeration – a study… by Dr AJ Schutte and Professor M Kleingeld, North West University 44 Round UP

Energy and enviroFiciency 46

Climate change and the grid… by Dr LE Jones, Alstom Grid Inc

48

Round UP

FEATURES: • Control systems and automation

• Hazardous areas and safety • Drives,motors and switchgear • Plantmaintenance, test andmeasurement

• Temperaturemeasurement • Energy and enviroFiciency

Regulars

Cover

1 Comment 29 Cover article 48 Greenie Beanie 50 CESA News 52 Bizz Buzz 54 Social Engineers 56 Clipboard

Catering to the growing needs of its southern African customer base, Schneider Electric has introduced its EasyPact TVS range of low-voltage motor starters for applications from 6 – 95 A to this market. Read more on page 29.

Visit our innovative online technical resource for the engineering industry. www.eandcspoton.co.za

E+CMar 2015 cover.indd 1

2015/02/23 11:26:08AM