Electricity + Control July 2015

LIGHT + CURRENT

LED systems for industrial lighting and floodlighting

ACDC Dynamics is the sole distributor of the Italian designed Gewiss product ranges in SouthernAfrica.We would like to intro- duce you to the Smart [4] LED lighting range for industrial lighting and floodlighting applications. Intelligent lighting provides the ability to adapt to the environment. This can be achieved by se- lecting the best solutions in terms of effectiveness and efficiency, for any application and in any environment. Smart [4] is the new lighting range by GEWISS that interprets intelligence exactly from these points of view and provides ver-

photometry’s depending on the different applications.The benefit of the new luminaires guarantees optimal lighting performance in any application, from industrial to sports environments, indoor or outdoor. That is not all. The horizontal and vertical modularity of the new product is combined with the ease of installation and maintenance, with the use of ‘green’ materials and with the unmistakable style of an Italian design. Energy efficiency, light quality and an immediate return on investment, ease of use and speed of implementation: these are the characteristics that make Smart [4] a truly intelligent product. Benefits of Smart [4] include: • Performance: Smart [4] was developed by the GEWISS research centres to reduce the Total Life Cycle Cost and therefore make it affordable to replace lighting systems. • Energy consumption: Using Smart [4] products instead of tra- ditional light sources yields energy savings of up to 60 %, in comparison to other systems and up to 80 % in comparison to obsolete or poorly maintained systems. • Configuration: Various methods and configurations ensure a flex- ible solution for any application • Installation: The entire Smart [4] product range was designed and developed tomake it easy to install and retrofit on existing devices and in obsolete lighting systems. ACDC prides itself in providing only the highest quality product ranges. Enquiries:Tel. Charlton Opperman.Tel. 010 492 3100 or email CharltonO@acdc.co.za

satility and adaptability, thereby defining the unique aspects of its identity and in doing so, offering sustainable lighting. Another unique point would be that Smart [4] offers the most varied types of application and in which lighting performance is a must. Smart [4] can be a floodlight, high bay or ceiling light as needed, offering different

Meet ACDC Dynamics at the FESPA/Lighting Africa Exhibition from 22 – 24 July 2015 at Gallagher Estate, Hall 1, Stand 20, 21, 23, 24.

New to the biogas generator market

With the build of our first biogas fuelled generator, Diesel Electric Services has now entered the biogas market, one that is sure to grow as we look for alternative sources of energy. In this case, the source of the energy is waste material from a chicken abattoir. The gas generated from the digestion of this material has sufficient quantities of methane to generate power. The unit supplied can export 150 kWof electrical power.The prime mover is a 6 cylinder, spark ignited recipro- cating piston engine with turbocharging and LEM , Geneva, Switzerland has released a new range of current transducers designated the HO series.The HO series is a breakthrough in the trade- off between performance, cost, size and mounting versatility. The six families cover nominal current ranges from 2,67 A to 250 A. PCB, through-hole, surface-mount or multiple panel mounting ver- sions. Apertures, or integrated primary conductors, are also available.The LEM HO series is based on new LEM ASIC (Application Specific Integrated Circuit) which brings open-loop transducer perfor- mance closer to closed-loop types, providing better control and higher accuracy at a significantly lower price. Important features include:

intercooling.To gain as much use out of the biogas as possible, 230 kW of heat is recov- ered from the engine jacket, oil cooler and exhaust gas.This heat is used to heat water from ambient conditions to 80 °C which is then used at various places in the process. The generator will operate on a continuous, 24/7/ 365 basis, parallel to mains and offset the load from the rest of the plant. In the event of a power failure, the generator will supply power to the auxiliary systems of the biogas plant to ensure there is no loss

in production of the biogas. As is often the case with new technologies, several ‘teeth- ing’ problems were encountered once the build was complete. These were overcome through extensive in-house testing, made possible by the installation of a permanent natural gas line earlier in the year. The end result is a product delivered to site that only requires minor adjustment of settings to ac- commodate the biogas fuel. Enquiries: Alain Bonfrer.Tel. 086 110 6633

New range current transducers

Single +5 V or +3,3 V power supply

Fast response time from 2,5 to 3,5 μs

Up to 8 mm creepage and clearance

Over-drivable reference voltage

Half the offset and gain drifts of previous generations Fault report function Overcurrent detection on a dedicated connection

Enquiries: DenverTechnical Products.Tel. 011 626 2023 or 083 601 8438/9 or email denvertech@pixie.co.za Versatile panel mounting version (3 ways). -40 to 105°C operation

Electricity+Control July ‘15

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