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Gas turbine was running on part load i.e., 15.8 MW (rated 20 MW) and suddenly naptha pressure before 3 way valve reduces to 0.17 (normally it is 5 kg/cm2) due to naptha controller malfunctioning. And then again without any appreciable delay, pressure increases to 2.59 kg/cm2. But the gas turbine tripped due to 'Loss of flame'. Then after fuel changeover to Distillate took place. Why did not fuel changeover take place before tripping?
The gas turbine is GE frame 5 machine running only on liquid fuel (naptha and HSD).
The gas turbine is GE frame 5 machine running only on liquid fuel (naptha and HSD).