Typology of activities on site for 72 KV to 420 KV circuit switch:

  • motor-compressor unit maintenance
  • Replacing opening and closing valves
  • Audit diagnostic with analysis of gas quality Sf6 the compartments
  • visual inspections, integrity, hardware, connection to ground network
  • Sf6 of gas pressure checks and topping up of all equipment
  • Functional tests signals, alarms, SF6 blocks
  • resistance main contacts measures
  • time surveys and absorptions maneuver, discrepancies
  • Check features and compressor run time and verification of compressor tripping
  • Checks on the opening and closing times of switch AT
  • Measurements of the absorptions of apert circuit