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  1. J

    Maintenance Guidelines, New Power Generation

    Hello everyone, In one of our LSTK project of Gas Turbine, 15MW,BHEL (bharat heavy electricals Ltd) make turbine & generator with Mark-VIe control, the contractor has supplied the Turbine and the generator separately, and waiting for the foundation/skid to be ready in install both. But...
  2. J

    Grid Frequency Instability & base load operations

    Hello Sir, kindly permit me to put the following queries which comes up day to day during the operation of our gas turbine plant. GE frame-v, 19.6 MW, three nos with mark-VIe control and synchronised with grid. 1. During normal condition all GTs are in LCM mode (fixed load) with say 15 MW...
  3. J

    Gas Turbine Alternator RTDs Meaning and Explanation

    Thank you so much....Lots of inputs! Regards
  4. J

    Gas Turbine Alternator RTDs Meaning and Explanation

    Hello CSA ... Yes this will help. recently the RTD DTGSA-4 was increasing gradually till 96 deg C (normal 70-74 deg C) and operator raised alarm. While troubleshooting b instrument engineer, the GT got somehow tripped. Later we came to know its trip setting is 120 deg C. Now I have a...
  5. J

    Gas Turbine Alternator RTDs Meaning and Explanation

    Hello everyone, We are in operation of 19.6 MW GE make gas turbine (Mark Vie control system) with Brush make alternators. There are nine RTDs installed for alternator i.e. : 1. Stator coupling end : 3 nos, (DTGSF1, DTGSF2, DTGSF3) 2. Stator collector end : 3 nos : (DTGSA4, DTGSA5...
  6. J

    Functional Description of Starting of Gas Turbine

    Hello everyone, please throw some light on this. When we give a start command to a gas turbine (say GE make, 19.6 MW, Frame-5, Mark-VIe control with prime mover is diesel engine), what are the steps through which it reaches FSNL (full speed no load). i.e., Functional description of starting...
  7. J

    Fire Protection System of a Gas Turbine

    Hello CSA.. Thanks a lot for your time and sharing your vast knowledge with us. This really helps. (1) Regarding the Forced signal, actually the R(Instt) was handling the issue immediately and will discuss with him about it, if something was done like this. (2) Why CO2 was not...
  8. J

    Fire Protection System of a Gas Turbine

    Thank you so much CSA! I have seen the drawing and was trying to understand the function of 45CR1 & 45CR2 and also 45CP. Can you help out? Recently one of our GT tripped on false fire signal. When we analysed the alarms, we found the alarm "Manual CO2 release/turbine area zone-1"(black...
  9. J

    Fire Protection System of a Gas Turbine

    Hell everyone, Myself engage in operation of GE make gas turbine generator (19.6 MW, Frame-5, Mark-VIe control). kindly explain the fire protection system of the turbine-generators. As per the schematic, there are UV detectors & thermal detectors in aux compartment, turbine compartment, L/G...
  10. J

    Start Command of Auxiliary Motors of Gas Turbines

    Respected CSA... Thank you so much for the input. It is a great help indeed. Regards
  11. J

    Start Command of Auxiliary Motors of Gas Turbines

    Thanks again CSA, Also please inform how many P&ID will be there for a gas turbine? I knew recently that aux motors P&ID is one of them. I am trying to find copies of all for our turbine. Regards
  12. J

    Critical Gas Turbine Parameters

    Hello CSA .... Excellent write up for beginners like us and it is explained so nicely. Thank you sir and must say I am overwhelmed...This will definitely help us to for better understanding. Regards
  13. J

    Critical Gas Turbine Parameters

    Hello everyone... I am working on gas turbine operation (19.6 MW, frame-V, GE make turbine, Brush make Alternator). I would like to know what are the MINIMUM turbine parameters which are to be monitored by us to keep our turbine healthy (log sheet is too huge to monitor) along with its set...
  14. J

    Start Command of Auxiliary Motors of Gas Turbines

    Yes this is very helpful indeed. Kindly also help to make out, how actually the control system detects OR which components physically senses that AOP (and EOP) is to be started or stopped. Also Once the component senses that the pump is to started, how it is then transmitted to the control...
  15. J

    Start Command of Auxiliary Motors of Gas Turbines

    Hello everyone.... I am working in operation of Gas turbine (19.6 MW, Frame-5 with Mark-VIe). My query on staring logic of auxiliary motors was explained in this forum (Thanks CSA..) Can anyone help me also to make out how the auxiliary motors (AOP & EOP) get the start command and also...
  16. J

    Starting Logic of Auxiliary Motors of Gas Turbine

    Hello CSA.. Thank you so much for elaborate write up. As advised I will also try to get some input from instrumentation. Thanks and regards
  17. J

    Starting Logic of Auxiliary Motors of Gas Turbine

    Hello everyone, I am working in a captive power plant having GE make gas turbine @19.6 MW capacity (frame-V) with Mark-VIe control system. Kindly help me understanding the logic of starting of auxiliary motors like (i) Aux Lube oil pump motor, (ii) emergency lube oil pump motor, (iii)...
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