GIS

Under the contract, Alstom will supply a total of six B105 gas insulated switchgear bays, which include 245kV, 31.5 kA, 3150 A, for the substation.

Alstom Grid’s most advanced 245 kV GIS, the B105 features the highest availability on the market and the lowest maintenance requirements.

The Petäjäskoski substation, which was designed to support increasing energy demands in Northern Finland, is being modernized aimed to enhance the security system as part of the existing development plan for the transmission grid in Lapland.

Alstom will engineer, manufacture and test the GIS at its factory in France. The GIS is scheduled to be delivered in November 2015.

Infratek is responsible for the turnkey construction of the substation, which is one of Fingrid’s largest substation projects to date.

Alstom Grid country sales director Risto Peltola said: "We are pleased to re-enter the GIS market in Finland.

"It is clear that our efforts in R&D are paying off and that our products are bringing added value to our customers. Our continued partnership with Infratek has proven to be a successful formula for this project. "

Image: Alstom’s B105 gas-insulated switchgear. Photo: courtesy of ALSTOM 2015.