PPT,ATRS1

AUTOMATIC TURBINE RUN UP SYSTEM

SGC OIL •

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SGC Oil supply directly acts on the following systems SLC turning gear SLC AOP 1 SLC AOP 2 SLC EOP SLC JOP AOP 1 is switched on as first step to provide the lubricating oil at the required ends.

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This program switches on the oil temp controller, which maintains the oil temperature in the header supplying oil to the bearings. The controller actuates a three valve which thereby controlling the quantity of oil being cooled in the oil cooler and quantity of  oil being taken directly from the tank to the header.

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SGC oil supply also ensures supply of motive oil to the hydraulic turbine of turning gear as the SLC turning gear is switched on by the SGC oil. The jacking oil pumps are also hooked up in SLC mode . SGC oil switches on this SLC for  jacking oil system. Shut down program of SGC oil can only be started if HP casing temperature, both top and

SGC - EVACUATION •

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SGC evacuation directly acts on condensate pumps, vacuum pumps, its SLC and its associated drives. Although SLC drains is primarily hooked up with SGC Turbine, SGC evacuation also switches it on. Shut down program can also be initiated by operator provided the following release criteria are available Speed of turbine