ABB has announced the launch
of its new generation 420kV
Gas Insulated Switchgear
(GIS) during the Hannover Fair,
Germany, April 23-27, 2012. The new
design reduces product volume
(width x depth x height) by up to 33
per cent compared to its predecessor
resulting in a considerably smaller
footprint, a statement by ABB said.
The compactness of the unit
makes it ideally suited for
installations where space is a
constraint and also reduces the
amount of SF6 (sodium hexafluoride)
insulating gas requirement by as
much as 40 per cent making it more
environment-friendly.
The new GIS can be factory
assembled, tested, and shipped as one
bay in a container instead of multiple
assembly units, saving site
installation and commissioning time
by up to 40 per cent compared with
traditional designs. Frontal access to
drives, position indicators and service
platforms enable easier operation,
inspection and maintenance.
Standardized modules and
connection elements also enable
flexibility in terms of configurations
and building optimization.
The product features a fast single interrupter
dual motion circuit
breaker and has been designed for
current ratings up to 5000A. It is
capable of providing protection to
power networks with rated shortcircuit
currents up to 63kA.