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  1. R

    Indirect method of Equipment Running Feedback

    Is there any logic that Steam Turbine Manufacturers sometimes use indirect signal like Pressure Switch/Pressure Transmitter for Equipment running feedback? The operators are in the blind condition when the PS/PT not in resetting condition to know which equipment is running?
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    MV Motors Start Permissive Time Delay after Shutdown

    Hi all, Is there any logic behind to use 60 sec Time delay to get the start permissive after a normal shutdown of a MV motor?
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    Does Prolong Turning Gear Operation impacts Generator Outage for F-class/H-Class Gas Turbine?

    Thank you very much. Appreciate your supportive issue.
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    Does Prolong Turning Gear Operation impacts Generator Outage for F-class/H-Class Gas Turbine?

    Hi, Can anyone please explain about the subject matter with reference documents for GE or other Manufacturers Gas Turbine Generator? Apart from that "Is Power Factor control mode not normally recommended for large capacity generator??" Regards, RU
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    APM & OPM-PI

    Thank you very much for your reply. We are going to implement both APM & OPM for our project, it's a 750MW Combined Cycle Power Plant comprising with two GE-9FA.04 GT and one D-11 ST along with some other major equipments of BOP. Want to learn some from you who have the experience on...
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    APM & OPM-PI

    Hello folks, Can anyone share the experience of working with GE OPM & APM? We are going to implement them for our project. We were familiar with OSM but the OPM-PI and APM are our new to us. If anyone has some information/case studies, please share. Thank you in advance. Regards.
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    GE-9E wheelspace temperature Abnormal

    Dear CSA, Here I have attached the photographs(1st one to 3rd one respectively) of all three thermocouples for your reference. Regards, Rokan
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    GE-9E wheelspace temperature Abnormal

    Dear CSA, We replaced the TC three times but still the problem is persisting. We have run our unit with this problem(no other abnormalities have been traced so far). Only the thing is each time the TC was found in broken condition. Regards, Rokan
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    Clutch of GT Frame 9E Main Fuel Oil Pump is not engaging

    We also faced similar problem with our frame-9E machine during commissioning with liquid fuel. After trending the variables related with HP fuel pump start up as well as flame loss we found that HP fuel pump clutch solenoid coil became weak. Although the supply side voltage is okay the coil...
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    GE-9E wheelspace temperature Abnormal

    Thank you very much CSA for your nice feedback.
  11. R

    GE-9E wheelspace temperature Abnormal

    One little information that I have missed regarding old T/C-The old T/C was found broken.
  12. R

    GE-9E wheelspace temperature Abnormal

    Dear MattIce & CSA There is no chance to remain a valve in closed condition since we apply LOTO for offline water wash and maintain it smoothly. During offline water wash wheelspace T/Cs values were very close to each other and it continues smoothly for 13 days.At 13th days TTWS3FO1 fluctuation...
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    GE-9E wheelspace temperature Abnormal

    Dear all, We are operating two GE-9E machines with dual fuel combustion facility(non-DLN burner; standard burner).These machines have been operated for seven years.Schedule maintenance(CI,HGPI) also carried out regularly. One of our unit recently experiencing high differential temperature alarm...
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    Free Governor Mode of Operation

    Dear CSA, Please find the picture of our Gas Turbine Control console at http://feed3.tinypic.com/rss.php?u=56NdKG8Rc120nEpCSLzMkA%3D%3D. The picture was taken when the unit in FGMO. Will get back to you with the data. Regards, Rokan
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    Free Governor Mode of Operation

    Dear CSA, Thank you very much. I will get back to you soon after collecting all the data. Regards, Rokan
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    Free Governor Mode of Operation

    Dear CSA & Esoteric, Please find my replies into the brackets. Apologize for include the whole things (your replies)!!! I don't understand how you can keep saying that you want to get the unit to hold a steady load at 50.0 Hz, when you now say the grid frequency won't be at 50.0 Hz for...
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    Free Governor Mode of Operation

    Dear CSA, Our machines are standard combustion machines. Regarding FGMO enable, We normally use preselect mode to hold GT load say at 98MW and when we find 50.0HZ frequency for a moment (I told you our transmission line frequency is very unstable, and it is not possible to get 50.0HZ...
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    GT13E2 Turbine Operation Manual

    Hi, Can I have the manual of GT13E2 too? Can anybody share or send it to [email protected].
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    Free Governor Mode of Operation

    Dear CSA, Thanks for your long valuable reply.My primary intension is to find out the clue of different loads at same frequency at different times when we are not changing anything. Say at 50.0HZ frequency we get 99MW load and at another 50.0Hz Frequency we get 93MW load. Why we will not get...
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    Free Governor Mode of Operation

    Our plant consists of two GE-9E machines,two HRSGs and one ST. The GE-9E machines each with rated load 117900 KW at 32°C, 80% RH and 1013 mbar (atm). The nominal frequency is 50Hz. For grid stability the transmission company now emphasize to run the plant on FGMO (Free Governor Mode of...
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