GAS-INSULATED SUBSTATIONS

  1. PROJECTS
  2. GAS-INSULATED SUBSTATIONS

TRANSITIONING TO GAS-INSULATED SUBSTATIONS (GIS)

To enhance reliability and adopt modern practices, the CEB is transitioning from Air-Insulated Substations (AIS) to Gas-Insulated Substations (GIS) as part of its infrastructure upgrades. Unlike AIS, which relies on atmospheric air for insulation, GIS uses sulfur hexafluoride (SF6) gas, providing superior insulation and several key benefits:

Key Advantages of GIS:

  • Compact Design: Requires less space, ideal for urban and limited-space locations.
  • Enhanced Insulation: SF6 gas ensures higher reliability and resilience.
  • Integrated Components: Fully enclosed high-voltage equipment offers better protection against environmental factors.
  • Reduced Maintenance: Enclosed design minimises exposure to contaminants, lowering maintenance needs.
GIS substations are planned at the following strategic locations:
  • FUEL,
  • AML (Airport of Mauritius Limited),
  • Wooton,
  • Ebène,
  • L'Avenir,
  • and other key sites.

These projects are part of the CEB’s commitment to modernising Mauritius' energy infrastructure, ensuring a reliable, efficient, and future-ready electricity supply.