Stublach Gas Storage — Protection & Arc Flash
A full suite of studies for an onshore gas storage plant
The challenge
Aurora was approached by Storengy to undertake power system studies to support the connection of two new 9.5 MW VSD compressors, along with additional studies to assess system performance following faults and subsequent arc flash requirements.
What Aurora did
We began by developing an ETAP model of the whole power system, including the existing and new equipment and the associated solution mining loads. Once the model had been created and validated against existing site operation, Aurora undertook loadflow and short circuit studies to confirm the system operating parameters. Aurora then re-evaluated the existing protection coordination settings across the whole plant, from LV up to the 132 kV connection, before undertaking a new grading exercise for the new VSDs and associated auxiliary loads.
Aurora was subsequently tasked with carrying out an arc flash investigation using the new protection settings, to determine incident energy levels and required PPE for operatives.