Tender Document for Construction of Ghorasal 300-450 MW ... - BPDB

t. Fire detection by flame detectors, UV detectors and CO 2 fire
protection system.
u. On base piping.
V. Load coupling.
w Compartment lighting
x. Compressor washing system (Off & On line)
2. Generator Package
a Outdoor enclosure.
b. Stator winding with class F insulation.
c. Cylindrical forged steel rotor with class F insulation.
d. Air-cooled system.
e. Lubrication system integral with gas turbine lubrication system.
f. Platinum RTD temperature detectors imbedded in the stator
windings.
g. Structural steel base.
h. Speed reduction gear. (if required)
i. Excitation system
j. Generator space heater (s)
3. Generator switchgear
a. Outdoor enclosure.
b. SF 6 Generator circuit breaker for one GTG & STG
b. Potential transformers.
c. Current transformers.
d. Lightning arresters.
e. Neutral grounding transformers,
f. Connections to generator power leads and unit step up
transformers by phase segregated copper bus duct.
g. Lighting and heating equipment.
h. Ventilation system.
i. Connections to auxiliaries transformer.
j. 15.75 kV Generator breaker having adequate capacity to meet the
requirements (as per single line diagram)
4. Inlet Air System.
a. Filter compartment with:
• Support structure.
• Multi-stage (3 stage) filtration system, complete in all respects.
• High efficiency media filtration.
• Pressure measuring instrumentation.
• Inlet ducting.
• Access door.
• Lighting.
• Air inlet system special corrosion protection.
• Air inlet system bypass door.
b. Inlet silencing.
c. Transition piece from inlet duct to inlet plenum.
d. Structural support.
5. Exhaust System (Vertical)
a. Exhaust ducting.
b. Exhaust silencing.
Ghorasal 300-450 MW CCPP Project (Vol-2A of 2) 10