DIFFERENTIAL EXPANSION
It is prohibited to raise the speed of turbine rotor or the load if the relative expansion (+) or contraction (-) of the rotor reaches the maximum permissible values asRead More
AIR PRE HEATER
Air Preheater Air preheater is an heat recovery device, used in the last stage in the boiler It is a heat exchanger that absorbs heat from exit flue gas in boiler andRead More
NRV IN EXTRACTION LINES
Non return valves has been installed on the non regulated extraction lines to prevent racing of TG set by reverse flow of steam at the time of tripping or shutRead More
VACCUM PULLING
Close RH vents (IP turbine and LP turbine direct coupled if RH vents not closed then air from atmosphere is coming in the condenser via IP and LP turbine) &Read More
GENERATOR SEAL OIL SYSTEM
SYSTEM DESCRIPTION Shaft seals are supplied with pressurized seal oil to prevent hydrogen losses at the shaft and air entry into the hydrogen-cooled generator. As long as the seal oilRead More