Archive for 2012

Authorised reseller agreement

Canadian Solar Inc recently announced that Romano Group will become an authorised Canadian Solar reseller in South Africa. The announcement comes as Canadian Solar looks to increase its local photovoltaic (PV) module market share via a deliberate partner-led approach. The Romano Group has a Solar PV division that operates as an EPC contractor for large-scale […]

Panel discussion on lightning and surge protection

by Hans van de Groenendaal, EngineerIT Lightning and surge protection methods are frequent topics of discussion amongst engineers and technicians. While all agree that protective measures are essential, not everyone has the same view on implementation. We invited industry players to participate in a virtual panel discussoin to discuss various aspects of lightning protection.   […]

IGBT drive unit for inverters up to 400 kW

The new Skyper 42 LJ drive unit by Semikron combines the benefits of digital signal consistency while maintaining full functionality. It is a dual-channel IGBT driver unit for 600, 1200 and 1700 V IGBT modules and controls IGBT modules up to 1000 A with an output current of 80 mA and a maximum switching frequency […]

Energy saving seminar

The ECA Highveld Region invites you to be part of this seminar where Sustainable Energy Society of Southern Africa ombudsman Carel Ballack will discuss the following topics: Eskom rebate schemes. Growing into solar as an electrical contractor. Renewable energy technologies including, biogas, solar water heating etc. Ballack has had a diversified career in the building […]

Energy savings for HVAC/R

Permafrost NMR is a multi-patented, surface science technology in a dense liquid form to enhance the thermal transfer ability of any HVAC/R system permanently. One once-off application restores the unit to near original operating efficiency, while eliminating oil fouling and preventing it from recurring. The product has been tested in laboratories in the United States […]

LED street lighting for long-term cost efficiency

When new street lighting was required by the community in Ndwedwe, close to Stanger, in KwaZulu-Natal, the predominant requirement was long-term cost efficiency. Johannesburg-based PD Naidoo & Associates compared the efficiencies of various technologies and suppliers before a solution by Beka was chosen as it offered the most economical cost per km of road lighting […]

Power supplies with arbitrary waveform

TDK Corporation announces the arbitrary waveform generation capabilities of the TDK-Lambda Z+ series of high-density, 2U format benchtop and rack mounted 200 W and 400 W power supplies. The ability to create and store up to four application specific test waveforms removes the need for an external controller in basic simulation tasks. Up to twelve […]

Lighting upgrade saves 40%

Rawlyn LED Lights has conducted an energy audit at railway industry turnout manufacturer Voestalpine SA’s Isando head office to assess the existing lighting in the building. Based on the assessment findings, the company was presented with a proposal on the expense and projected savings of implementing energy reduction measures. With the Eskom rebate, there was […]

In conversation with Yokogawa team

Hans van de Groenendaal in conversation with the Yokogawa team Working across continents has advantages –this became clear in an interview with Takeo Kobayashi, senior vice-president Yokogawa global headquarters; Harry Hauptmeijer, president Yokogawa Europe & Africa and Johan Louw, MD Yokogawa South Africa. Team players: Yokogawa’s Harry Hauptmeijer,Takeo Kobayashi and  Johan Louw. For the first […]

New fast-drying direct-to-metal coating

A new anti-corrosive coating with a drying time of just 60 min promises to increase line-speeds for wind tower manufacturers by at least 50%, compared to standard two- and three-coat systems. Launched recently by international coatings manufacturer Hempel, Hemperea DTM 55973 can be applied directly to metal and is suitable for C3 corrosive environments. This […]