World premiere in Ultra High Voltage Alstom Grid inaugurates the first 1200 kV disconnector

Alstom Grid and Power Grid Corporation of India (PGCIL) have inaugurated the world’s first
1200 kV double knee type disconnector1, supplied by Alstom Grid’s Padappai
manufacturing plant, in southern India. The equipment will be installed at PGCIL’s 1200 kV
national test station, located in Bina (Madhya Pradesh).

The innovative technology used for this new double knee type disconnector enables this
type of equipment to achieve unparalleled voltage levels and completes Alstom Grid’s
integrated Supergrid offer. This technological breakthrough is a major step following the
inauguration of the 1200 kV capacitor voltage transformer and optical current transformer
provided by Alstom Grid for the 1200 kV national test station. Alstom Grid’s 1200 kV optical
current transformer, from its COSI range, was unveiled in September 2012. PGCIL’s test
station will facilitate field testing of 1200 kV equipment prior to the deployment of the
country’s Ultra High Voltage AC transmission system.

Alstom Grid is the world’s N° 1 disconnector manufacturer, with ten production facilities in
seven countries, and has delivered and installed over 140,000 units in more than 130
countries around the world. The double knee type disconnector is unique as it does not
require any special tools in order to be adjusted. Alstom’s solution is recognised worldwide
as easy to install and adjust, with high performance and reliability. With its lifetime greased
parts and corrosion-free material, it is virtually maintenance-free.

Grégoire Poux-Guillaume, Alstom Grid President, said: “This project represents an
important milestone for Alstom Grid and reinforces our leadership position in India. As the
foremost supplier for the majority of the 765 kV Extra High Voltage (EHV) substations in
India, Alstom is proud to partner with PowerGrid and build tomorrow’s 1200 kV level
transmission products and solutions”.

1 The term double knee type refers to the opening and closing movement of the disconnector, both vertically and horizontally. The product is also known as a semi-pantograph disconnector.

About Alstom
Alstom is a global leader in the world of power generation, power transmission and rail
infrastructure and sets the benchmark for innovative and environmentally friendly technologies.
Alstom builds the fastest train and the highest capacity automated metro in the world, provides
turnkey integrated power plant solutions and associated services for a wide variety of energy
sources, including hydro, nuclear, gas, coal and wind, and it offers a wide range of solutions for
power transmission, with a focus on smart grids. The Group employs 92,000 people in around 100 countries. It had sales of €20 billion and booked close to €22 billion in orders in 2011/12.

Alstom Grid has over 100 years of expertise in electrical networks. Whether it is for public utilities or electro-intensive industries, or to facilitate the trade of power, Alstom Grid brings energy to clients’ projects. Alstom Grid is among the 3 largest companies in the power transmission sector, with annual sales revenue of over €4 billion. It has 20,000 employees and over 90 manufacture and engineering units around the world. At the Smart Grids development center, Alstom Grid offers integrated products, services and solutions for power management all over the value chain - from power generation and transmission and distribution networks to the end user.

Press Contacts
Aline Besselièvre (Alstom Grid) – Tel: +33 1 49 01 69 04 –
Pooja Thakran (Alstom Grid India) – Tel: +91- 8800 99 48 73 –