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Technical Specification for
PG6581B Gas Turbine Generating Set
1.
Manufacturing
The gas turbine generating set is produced under Manufacture
Associate Agreement with GE Company of
2.
Structure
PG6581B gas turbine generating set is a package unit and can be
installed for outdoor operation. It is composed of four blocks i.e. the
gas turbine and accessories compartment, control compartment, load gear box
enclosure and generator compartment.
The control panel of gas turbine, control panel and protection panels of
generator, motor control center ( M.C.C. ) are located in the control
compartment. Neutral point and outgoing leads cabinet are situated at
each sides of the generator compartment. The whole unit is furnished with
necessary ventilation, lighting and fire-fighting system. There is air
conditioners in the control compartment. 1.
Technical
Specification. 3.1
Base load ( ISO condition ) ( guaranteed value )
Distillate oil Natural gas
Output
kW
40950 41890
Heat rate
kJ/kW.h
11342 11247
Inlet temp. of turbine
oC
1140
1140
Exhaust temperature
oC
544
546
Exhaust gas flow
kg/h x10x3
526
525
Note: above performance is
measured at generator terminals and
includes allowances for the effects on shaft driven auxiliaries, and
2.55 in H2O ( 6.48 mbar ) inlet and 2.52 in H2O ( 6.4 mbar ) exhaust
pressure drops and a NON DLN combustors.
3.2
Performance
correction on the non-ISO conditions. 3.2.1
Altitude correction on curve 416HA662 Rev A. 3.2.2
Ambient temperature correction on curve 544HA876-2 Rev 0 and 544HA875-2Rev
0. 3.2.3
Effect of modulating IGV’s on exhaust temperature and flow on
curve 544HA876-3Rev 0.and 544875-3 Rev.0 3.2.4
Humidity correction on curve 498HA697 Rev B. 3.2.5
Effect on pressure drop. l
Air inlet
pressure loss increase every 996 Pa, results an output
decrease of 1.50%, and a heat rate increase of 0.50%, exhaust
temperature increase 1.2 oC. l
Exhaust
pressure loss increase every 996 Pa, results an output decrease of 0.50%, and a
heat rate increase of 0.50%, exhaust temperature increase of 1.2 oC. 3.2.6
NOx emission
168 ppmVD for natural gas
327 ppmVD for distillate oil 3.2.7
Noise
93 dB (A) at 1m from each machine 3.4
Generator
Type:
QFR-38-2
Output:
38000 kW
Voltage:
10500 V
Current:
2611.8
A
Frequency:
50 Hz
Power factor:
0.8
Speed:
3000 rpm
Efficiency:
97.7%
Protection type:
IP
44
Synchronous reactance (saturated):
247%
Transient reactance (saturated):
22%
Sub-transient reactance (saturated):
14.8%
Negative sequence reactance (saturated):
19%
Short circuit ratio:
≥0.46
Insulation class:
F
Connection:
Y
Cooling mode:
CACW
Cooling temperature
32℃ Note:
The output of generator can be matched with the gas turbine output requirement.
Attached
Curves: 416HA662
Rev.A Altitude vs Atmospheric
Pressure and Altitude vs
Correction Factor for Gas Turbine Output and Fuel
Consumption 544HA420
Rev.0 Effect of Compressor Inlet
Temperature on Output,
Heat Rate, Heat Consumption, Exhaust Flow and
Exhaust Temperature at Base Load 544HA421
Rev.0 Effect of Inlet Guide Vane on
Exhaust Flow and
Temperature as a Function of Output and
Compressor Inlet Temperature 498HA697
Rev.B Correction to Output and heat
Rate for Non-ISO
Specific Humidity Conditions |
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