|
|
|
Footprints
by Mike Rycroft, editor
 We are all familiar with the term carbon footprint, which is used widely today, but is actually a bit of a misnomer, and it should be called the fossil fuel footprint. All technologies leave an environmental footprint, and the long term effects of some of the newer technologies is unknown... ( more) |
|
Chair prominent in global energy issues
Information from SANEA
 The 21st World Energy Congress, held in Montreal from 13 to 16 September 2010 attracted some 8000 delegates from almost 150 countries around the world. In addition to his role as chairman of SANEA, Statham is now also the chair of studies for the World Energy Council (WEC) for the next 3 years... ( more) |
|
The Jacob Marley column: New lamps for old
Eskom has completed exchanging no fewer than 8-million electricity-guzzling incandescent light bulbs for the new super-efficient CFL type. But my friend Faraday pointed out that even if 8-million 60 W light bulbs were switched off immediately and permanently, demand would fall by less than 500 MW... (more) |
|
Renewable energy in South Africa - where to from here?
by Mike Rycroft, editor of Energize
Other than an announcement that Eskom would be the sole purchaser of RE (at least in the initial stages), nothing has happened. No power purchase agreements (PPAs) have been signed, no tenders have been issued, and the RE programme has ground to a halt... (more)
|
China and nuclear energy: Very real fears. Part 1
by Chris Meyer, technical journalist
Why would the Soviet Union have seriously considered launching a large-scale pre-emptive nuclear strike against the People's Republic of China (PRC) in 1969? This is just one of the fascinating pieces of history about the Chinese nuclear programme that is largely forgotten today... (more) |
|
Stray flux testing
by David Tarrant, DTEC and Michael Price, Sebenzana Consulting
This article describes the problem of shorted turns in generator rotors, listing the more common causes of these as well as the the traditional off-line test methods. The main industry-accepted and proven method of testing for shorted turns on-line used today, is the stray flux test... (more)
|
|
Corona: a predictive maintenance indication?
Information from Uvirco
Corona appears often on SA transmission lines stretching from the coal power station at Witbank and surroundings, to the Witwatersrand urban and industrial areas. Corona can also be heard and observed at medium and high voltage substations... (more)
|
|
Copper theft prevention: Analysis of current strategies
by Neil Arendse, Metals Theft Unit, City of Cape Town
"Cable theft is draining the resources of the Cape Town's electricity services and hampering our efficiency in attending to other public electricity complaints," said Clive Justus, mayoral committee member responsible for Cape Town utilities... (more) |
Torque balance of overhead conductor with helical formed fittings
by A Duckham, Preformed Line Products
This paper describes part of a study conducted on composite overhead conductors that are terminated with helical dead ends to determine the torque balance of the assembly. It also considers mechanisms that eventually cause bird caging and considers the link of torque balance to this phenomena... ( more) |
|
Complex HV installations require specialist skills
by Dale Pudney, High Voltage Technology SA
Involvement in a number of HV contracts involving complex installations for Eskom and international OEMs, has developed specialist skills.The lesson learnt is that only when these skills are supported by proper safety and quality systems, does the "site services" business become sustainable... (more)
|
Renewable energy systems power off-grid BTS
by Mike Rycroft, editor
A mast standing 56 m tall is playing a vital role in bridging the digital divide, by bringing communication through connectivity to a remote community in the Northern Cape. Riemvasmaak, situated 120 km west of Upington, has joined the global village thanks to an off-grid base station erected by MTN South Africa... (more)
|
|
Sodium-metal halide batteries for stationary applications
by Richard Bourgeois, Energy Storage Technology, GE Transportation
The benefits of sodium batteries in electric vehicles have been long explored, but their advantages also make them a sound choice for critical stationary applications including uninterrupted power sources and telecommunication back-up systems... (more) |
|
Institute and industry news
|
|
Views, comment and opinion
|
|
Conferences, exhibitions and training
Power electrical engineering events |
|
|
|
|
|
|
Get your free e-Zines!
(Flash flip-page edition) 
(Flash flip-page edition)
|
|
Published by
EE Publishers
P O Box 458 Muldersdrift 1747 South Africa
Tel: 0115437000 Fax: 0115437025 |
|
Copyright
© Copyright 2010 -
EE Publishers (Pty) Ltd.
All rights reserved. | |
