What does Turbine TRIP mean?

Boiler trip :

  • Stops fuel feed to Furnace
  • Purpose – To clear out combustibles from the Boiler and prevent any explosive condition from persisting

Turbine trip :

  • Close all steam admission valves (ESV, GOV Valves)
  • Purpose – Stop steam admission to ensure turbine coasts down and Open all drain lines of steam admission pipes upstream / down stream valves to prevent accumulation of water which may enter the Turbine

Generator trip :

  • Opens CB connecting Generator to Grid

    Purpose – Isolate system from faulty generator

  • Opens Field Circuit Breaker to cut-off excitation