Last 2 days, GT Hitachi had a major problem that cause 1st alarm before machine completely trip. HUHUHU.. They suspected instrument may cause the problem due tu unstable temperature reading in turbine exhaust that shows in control room. All engineers and i rushing to the site to attend the problem and swap suspected broken thermocouple to spare thermocouple.
The solution relieved the operation guy temporarily as the machine trip for next day. Aiyaaark..
Mechanical team removed the fuel nozzle and fine out the gasket not as spec required. Wrong installed gasket causing gas flow chocked and improper burning process . The temperature in exhaust should shows around 300 to 400 degree celcius and if the some thermocouple shows low reading automatically machine will trip. As fast as lightning they changed the gasket and everybody is happy that day. LALALALALA..
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