We have two (2) SGT 800s (50MW each) on a recently commissioned CHP plant, we have had approximately 5 incidents where the machines went into 40hrs barring block as a result of varying issues. In a nutshell, the barring block is a protection for the GT if barring is not achieved on coast down, hence time required to have machine properly cooled prior to start. But staff experience to avoid this issue translates to a reliability issue. Barring block is initiated 10 minutes after loss of power to starting motor, 30 minutes if ventilation is lost.
My questions are:
Does any one here operates the SGT 800 and has experienced this and how did to avoid the recurrences?
Does any one here operates the SGT 800 and carried out OEM modifications on this such as DC barring or Barring back-up?
My questions are:
Does any one here operates the SGT 800 and has experienced this and how did to avoid the recurrences?
Does any one here operates the SGT 800 and carried out OEM modifications on this such as DC barring or Barring back-up?