Alstom T&D India and Power
Grid Corporation of India
recently inaugurated the
world's first 1200kV double-knee type
disconnector, supplied by Alstom
T&D India's Padappai manufacturing
plant, in Tamil Nadu. The equipment
will be installed at PGCIL's 1200kV
national test station at Bina in
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
T&D India's integrated Supergrid
offer. This technological
breakthrough is a major step
following the inauguration of the
1,200kV capacitor voltage
transformer and optical current
transformer provided by Alstom T&D
India for the 1,200kV national test
station. Alstom T&D India's 1,200kV
optical current transformer, from its
COSI range, was unveiled in
September 2012. PGCIL's test station
will facilitate field testing of 1,200kV
equipment prior to the deployment of
the country's ultra high voltage AC
transmission system.
Alstom Grid is the world's largest
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,
an official statement noted. 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.
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