Electricity + Control

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Electricity and Control August 2017Such important messages were relayed at the recent PowerGen & DistribuTECH Africa 2017 held at the Sandton Convention Centre in Johannesburg. With 75 international exhibitors and over 2 800 delegates in attendance, only good – surely – will come out of it.

Host utility Eskom's new Interim Chairman, Zethembe Khoza, said that the spirit of progress, innovation, partnership and integrated advancement of our industry will help us unite as a single African super grid.

George Njenga, Regional Executive, Gold sponsor GE Power South Africa, said power sector progress and innovative business models across Africa were cause for optimism with new technologies and digital solutions – including the Internet of Things and data analytics – finding a place in the pan-African power sector.

And there were many more great messages.

• ‘Africa is the new nuclear frontier, the optimal energy mix’.
• ‘We have to look at reliability and affordability, but it’s also important to have a low carbon emissions technology in place and to look at the benefits when it comes to industrialisation, localisation and job creation. We therefore need to look at a mix that can balance these factors’.
• ‘A country like South Africa, with one of the highest radiation levels in the world, we need to take advantage of solar’.
• ‘We also have coal for baseload power, but it’s important that when we use our coal resources, we use clean technology’.
• ‘Emerging technologies such as gas can also support baseload power'.

However, I thought that this year there was an air of caution and a sense of uncertainty as to what the future holds. This underlying mindfulness may have been influenced by South Africa’s Minister of Public Enterprises, Lynne Brown, having to allude to the fact that the country’s power utility is ‘allegedly’ steeped in corruption and that investigations were underway.

As a potential investor ... how would this make you feel?

‘Til next time!

Wendy Izgorsek
Editor, Electricity+Control
Tel. +27 (0) 11 622 4770


Articles in Electricity+Control, August 2017

• Control systems + automation

Using AMI Data to Analyse the Safety of the Distribution Network -  Desmond Mabilo, Siemens

Advanced Metering Infrastructure (AMI) systems can offer much more than the ability to accurately produce a bill to customers on their electricity consumption.


• Electrical protection + safety

Is a UPS Alone Sufficient for your Power Requirement?  - Kevin Norris, Jasco Power

Experience and the results of many site surveys have shown that UPSs are not completely effective on their own, and need to be supported by additional power conditioning equipment.

From the Sensor to the Controller: Reliable Signal Transmission in Confined Spaces - Dipl.-Ing. Ralf Hausmann, Phoenix Contact GmbH & Co. KG, Blomberg

The world's narrowest surge protection for Measurement, Control and Regulation (MCR) technology has been recently launched.


• Temperature measurement

Ground Water Cooling System - Jesper Thurbo, Danfoss

Thanks to a groundbreaking heating and cooling system hidden in the basement, Crowne Plaza Copenhagen Towers Hotel has trimmed its CO2 footprint and the energy bill.

3 Ways to Connect Pt100 to the Transmitter - Roland Sachs, WIKA

Pt100, Pt1000 and NTC are the most-used measuring elements in resistance thermometers. This article explores the question of connection types in greater detail.


• Transformers + substations

IN CONVERSATION: Cast resin transformer technology: An Efficient Low Risk Option

Crown Publications editor, Peter Middleton, discusses Cast Resin Transformer technology with Mervyn Low, Managing Director of Greenergi.


• Standby + back-up

Energy Storage Solutions in South Africa - Charlotte Smith, Arup

This article is focused on the electrochemical storage options available that are considered more applicable to household or small industrial/commercial consumers.

New IPC platform empowers engineers with the latest advances in IT - Driaan Coetzer, Omron

The Industrial PC platform from Omron (IPC) has been designed to empower engineers to develop machines and factories that are better, safer, and faster by giving them the freedom and flexibility to explore the opportunities provided by modern IT.



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