5 / 56
Regulars
Control systems and automation
4
IEC-61850 – Promise and pitfalls
by K Mahoney, Casco Systems LLC
8
MAC meets market needs effectively
information provided by Omron
10
Round UP
Flow measurement and instrumentation
18
Particle Time of Flight: Reflections on gas flow measurement in hazardous environments
by T Moorhouse (ex Photon Control), S Ante (contributor), S Braver, Martec Asset Solutions
21
Round UP
Drives, motors and switchgear
26
Brushless Servo operating principles
by G Craig, Techlyn
29
70 % Savings on power costs with modular energy saving system
by N Maleka, SEW EURODRIVE
31
Round UP
Valves and actuators
36
How to select the right valve
by T Young, Vortex
39
Round UP
Energy and enviroFiciency
42
Seeking cleaner and safer energy solutions
Information compiled by The South African Civil Society Information Services (SACSIS)
46
Round UP
The only manufacturer of circuit
breakers and related devices in
Africa,
CBi-electric
is a truly
South African success story.
Read
more on page 17.
FEATURES:
• Control systems and automation
• Flowmeasurement and instrumentation
• Drives,motors and switchgear
• Valves and actuators
• Energy and enviroFiciency
E+C July 2015 cover.indd 1
2015/06/25 10:12:06AM
Cover
CONTENTS
1 Comment
17 Cover article
48 Light+Current
49 Bizz Buzz
51 Social Engineers
52 Clipboard
Visit our innovative
online technical
resource for the
engineering industry.
www.eandcspoton.co.za4
26
36
42
www.electricityandcontrolmagazine.co.za