WCA November 2013

Upgrade gives more power to downtown Mumbai

“Further, lightweight conductor was mandatory in order to improve ground profile as well as maintain existing clearances. These three factors were considered while selecting the conductor,” Mr Deodhar added. Tata Power introduced Sterlite’s carbon composite core with trapezoidal annealed wires to replace the old ACSR conductors. The complete re-conductoring exercise was supervised by Sterlite and carried out using specialised tensioners and pullers to eliminate any possibility of winding force between the carbon core and the trapezoidal annealed wire conductors. The core of the ACCC conductors is claimed to be 25 per cent stronger and 60 per cent lighter than traditional cores, and its lower coefficient of thermal expansion leads to less sag at higher temperatures. Sterlite Technologies Ltd – India Website : www.sterlitetechnologies.com

transmission capacity of the existing IIT Powai to Saki transmission line, which crosses a thickly populated slum area on hilly terrain. “The lines on which ACCC conductors have been installed are very old lines traversing through populated areas,” said M V Deodhar, assistant engineer – projects, Tata Power. “The idea was to go for lightweight conductor so that we can retain our existing structures and augment the line capacity.

Sterlite has completed the installation and commissioning of a challenging project in the centre of Mumbai, India, upgrading the power carrying capacity of a Tata Power line. The project involved design, supply and installation of high capacity, high strength carbon composite core conductors on an existing critical arterial 22kV line. A unique solution has resulted in an exponential increase in the power Technologies

An important choice The selection of proper dies and lubricants are two of the most important and essential requirements for wire drawing applications. This determines the quality and helps reduce the cost of drawing, in terms of maintenance and by increasing the life of the die and reduction of lubricant consumption. Kay Pee Dies, established in 1968, produces tungsten and carbide dies for wire, bar, tube, drawing, cold heading, extrusion and special applications, and services customers from India, South East Asia, Nepal, the Middle East and Africa. It also acts as an exclusive distributor for Pan Chemicals SpA, Italy, for distribution and sale of its wire drawing lubricants. Kay Pee Dies – India Website : www.kaypeedies.com

$30m contract for Iraq grid expansion

The power and automation technology group ABB has won an order worth around $30 million from Zagros Energy to build four new transmission and distribution substations in the Kurdistan region of Iraq, part of an initiative to expand and strengthen the regional power grid. The project is scheduled for completion in 2014. Due to industrial growth, construction projects and economic development, demand for reliable power is growing at a rate of 10 to 25 per cent per year. The Kurdistan power grid supplies around 2,750MW of electricity with more than 90 per cent of the capacity owned and operated by independent power companies. The increasing demand for electricity means that outages and blackouts are frequent. In the short term, a capacity expansion to about 4,000MW is planned; the long-term ambition is to reach 10,000MW, which would open up the possibility of exporting power to neighbouring countries. ABB’s project scope includes the design and supply of the substations to enable an additional 600MW of power to the region. The substations are based on GIS technology, selected for its compact footprint since they will be located in the centre of the city. Two will be connected with 132kV underground cables, due to the lack of space for overhead lines. ABB – Switzerland Website : www.abb.com

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Wire & Cable ASIA – November/December 2013