1. J

    Moisture in CPD sensing lines

    Hey Folks, Just curious if anyone has experienced problems arising from moisture in the CPD pressure transmitter sensing lines. We recently experienced a trip when two of the three CPD sensors stopped tracking and slowly trended upwards until we reached the trip point. The unit is a frame 7AE...
  2. J

    Nexus meter

    Hey Folks, Just wondering if anyone has any info on nexus meters as they relate to generator control. We recently upgraded our frame 7AE to include a nexus meter during a recent outage. Since, we've seen the machine drop load unexpectedly and even run itself offline. The short term fix has...
  3. J

    GE frame 7AE flame out on transition out of premix SOLVED

    Hey Folks, Just a some info sharing if you're experiencing a similar issue at some point in the future- Background: Our frame 7AE DLN unit was tripping off on flame out whenever we attempted to transition out of premix and back to primary firing mode. It was a tricky problem to troubleshoot as...
  4. J

    IBH (inlet bleed heat) has lost its marbles

    Hey folks, quick question for those of you with experience running GE frame 7AE or similar units with DLN combustors. Recently our unit's IBH system lost its marbles. We think that its a problem with the CV positioner. Long story short, the IBH valve's feedback was becoming flaky (dropping to...
  5. J

    GE frame 7AE main hydraulic oil pump failure SOLVED

    Morning, Thought I might share the results of an investigation we recently had into the failure of our main hydraulic oil supply pump/pressure coming up from an outage. Long story short, operations noticed that the auxiliary hydraulic oil pump auto-started shortly after the unit reached FSNL...
  6. J

    Mark VIe isoch speed control

    Wondering if anyone can confirm my assumptions about how to achieve frequency control mode on the Mark VIe... Our unit has always run in droop speed control as it is grid connected. Our black start procedure is asks us to start the GT (90 MW frame 7) as soon as possible, prior to re-establishing...
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