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  1. Ghaith123

    VIGV and pressure ratio

    I am an operations engineer at a power plant responsible for managing Alstom 13E and MS9001E gas turbines. Both units are equipped with variable inlet guide vanes (VIGV) at the compressor inlet. I'm focusing on the MS9001E frame for this inquiry. At base load, the VIGV is fully open at 83...
  2. Ghaith123

    CPD Pressure

    Dear CSA I am working as operation engineer in a power plant and I am in charge of Alstom13E and MS91001E frame..both have variable inlet guide vanes at the inlet of the compressor..now let's take the the 9E frame as an example At base load the VIGV will be adjusted to be fully open at 83 degree...
  3. Ghaith123

    Steam tripping after one minute of the GCB closed and the first alarm is STG power factor

    Yes I have.. My shift is starting today.. I will attach all the trends to you.. When I saw it.. I noticed a a drop in reactive power and yes the problem is why the high voltage had opened.. It should not be opened as a protection for a Loss of excitation
  4. Ghaith123

    Steam tripping after one minute of the GCB closed and the first alarm is STG power factor

    Sorry for being late, I didn't noticed that you are following up with me.. I am now on two weeks off but I can assure you that the alarm that are associated with trip case are just what I have provided.. All other alarm before and after those alarm are related to drum level, pressure and...
  5. Ghaith123

    Steam tripping after one minute of the GCB closed and the first alarm is STG power factor

    It was on VAR mode. I am sorry I don't have the manual but I do have the code for the alarm which is TGB-CABA3108
  6. Ghaith123

    Steam tripping after one minute of the GCB closed and the first alarm is STG power factor

    Hi all, I'm new with steam turbine control and operation. It is a combined cycle 100 MW operated steam turbine of Fuji type. yesterday our unit tripped and the alarms generated was As the follow 1) at 4:37:05 STG power factor 2) at 4:37:06 AVR LIGHT FAULT (30AVR) 3) at 4:37:11 ST 400KV BRAKER...
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