Alstom T&D commissions digital solution for substation in Gujarat

12 Jul 2012 Evaluate

Alstom T&D India has successfully commissioned one bay of a 220 Kv substation with its patented Optical Instrument Transformer, the next step towards India’s first digital substation. The substation, which is located at Jambuva in the Vadodara district of Gujarat, was contracted by the state transmission utility - Gujarat Electric Transmission Corporation (GETCO). The contract was awarded to company in August 2011 as a pilot project to deliver Alstom’s Compact Optical Sensor Intelligence (COSI- CT) range of instrument Transformers.

This first of its kind installation in India uses Alstom's range of COSI products manufactured at Phoenix, USA, locally supported by Alstom's Instrument Transformer unit in Hosur and Substation Automation Solution unit in Pallavaram in the State of Tamil Nadu, the COSI range enables the digitisation of currents and voltages signals through Optical Ethernet Connectivity, enhancing accuracy, significantly reducing the use of copper cables and strengthening the reliability of the system. It will also facilitate Current Transformer sizing calculations. Besides, it is operationally safe, with no risk of explosion, and the absence of oil and SF6 ensures no environmental costs on end-of-life disposal.

Alstom T&D India is part of Alstom Grid, a global player in electrical grids. Company’s India operations account for over 13% of overall revenues garnered by Alstom Grid’s global operations. Apart from India business, other major contributors are the operations in France, the US, Germany and China.

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