Answer / Sudhir Kumar

Thermal power stations generate electricity using fossil fuels (coal, oil, natural gas) or nuclear fuel as a primary energy source. The main operations involved are:
1. Fuel Preparation: This includes pulverizing coal, cleaning the fuel, and supplying it to the boiler.
2. Heating: In the boiler, water is heated by combusting the fuel, turning it into steam.
3. Steam Turbine: The high-pressure steam produced in the boiler drives a steam turbine, which generates electricity through its rotor.
4. Electrical Generation: As the steam turbine spins, it drives a generator to produce electricity. This electricity is then transmitted to the power grid for distribution.

There is one 40MVA oil cooled transformer (yet to commission), filled with 95% oil and we are trying to fill 5% Nytrogen in that transformer so that there should not be any foreign component inside. But even though there is no leakage, nytrogen is not withstanding inside transformer, within a day or two pressure guage is showing 0. Why is it soooo? Pls reply.

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