Gas Turbine Generator Power Plant

1# Gas Turbine
Firstly, technical specification of 1# gas turbine:
Manufacturer: China Nanjing Turbine and electrical machinery Co.
Model: PG***1B
Under the condition of ISO(Air Temperature *5℃, Atmospheric Pressure  1.**3×**5Pa), under basic load, technical performance indicators of the units are as follows:***0T/M GT Rotational speed, Intake pressure loss **6Pa,  Exhaust pressure loss **2Pa.
 When units use GEI*****7 fuel, units parameters in single cycle operation are as follows:
Operation Mode  Basic Load
Fuel                                             Light Oil      Heavy Oil
Output Power        kW                  ****5         ****0
Heat Rate   KJ/KW.h                     ****6         ****9
Heat Consumption **6KJ/h           **9.8          **5.8
Turbine Inlet Temperature    ℃    ***4           ***8
 Exhaust Temperature           ℃    **9             **9
 Air Flow  **3Kg/h                         **1            **1
 Oil Consuming Rate   g/KW.h       **6            **9
* Calculate light oil low calorific value based on ****0KJ/Kg

Secondly, genenrator technical specifications of 1# GT are as follows:
Manufacturer Nanjing Turbine and Electric Machinery Co.
Model                  QFR****2
Product Standard QJ/***1  NQ*****9
Power                 *6MW
Voltage               *0.5KV
Electric Current    ***4A
Power Factor       0.8
Frequency           *0HZ
Rotational Speed    ***0 rpm
Excitation voltage   **0V

Excitation Current   **9A
Stator insulation     B
Rotor insulation      F(Examination on B Grade)

Thirdly, GT Operation
1#GT is in operation from Octo in ***6, until now start it 1,**0 times, among them ignition it 1,**3times. In total, it operates *2,**6 hours, among them, operation burning fuel(light oil) is *2,**2 hours, gas fuel(gas) **4 hours.

Fourthly, Introduction to Inspection and Repair
1. in April in ***9, after operating 3,**0 hours, GT goes into combustion inspection. We replace the flame tubes 1#, 3# and *0#.
2. in March in ***3, operating 6,**2 hours, GT goes into half-way repair. We replace flame tube 9# and positive flame connecting tubes **2 and **3; *0 transition portions are sent to Shenyang Liming to repair, replacing inside and outside floating seal and spraying coating again.
3. in March in ***4, after operating 8,**0 hours, generator goes into large-scale repair, replacing Bearing 4#, repairing Bearing 3#; The generator guard ring shifts, generator sent to Nanjing Turbine and Electric Machinery Co. to reassemble.
4. in March of ***5, after operating *1,**2 hours, GT goes into overhauling.
Overhaul appendix gear box: replace Bearing 2# and Tile 3#, Bearing 3A# and Tile 5#, Bearing 3B# and Tile #, Bearing 4# and 4 tiles inside and outside.
Overhaul generator: send generator rotor back to Nanjing company to replace its guard ring.
Overhaul GT body: replace the first level sprayer, *0 transition portions and tiles of Bearings 1# and 2#.


2# Gas Turbine
Firstly, Technical specifications:
Manufacturer: China Nanjing Turbine and Electric Machinery Co.
Model: PG***1B
Under the condition of ISO(Air temperature *5℃, Atmospheric Pressure 1.**3×**5Pa, Relative Humidity *0% ), under the basic load, units technical specifications are as follows:
GT Rotational speed 5,**3T/M, intake pressure loss **6Pa, exhaust pressure loss **2Pa. When units use liquid fuel GEI*****7 and gas fuel GEI—****0E, units parameters in single cycle operation are as follows:
Operation Model Basic Load
Fuel Light                                    Oil           Gas
Output Power   kW                      ****0      ****0
Heat Rate KJ/KW.h                     ****4       ****0
Heat Consumption **6KJ/h         **9           **3
Turbine inlet temperature   ℃    ***4        ***4
Exhaust temperature       ℃        **2          **2
Air Flow   **3Kg/h                       **9          **9

Secondly, Generator technical specifications
Manufacturer Nanjing Turbine and Electric Machinery Co.
Model                 QFR****2
Phase Number    3
Pole Number      2
Power                *8MW
Voltage              *0.5KV
Electric Current  ***1．8A
Power Factor     0.8
Frequency         *0HZ
Rotational Speed     ***0 rpm
Excitation Voltage   **2V
Excitation Current    **0A
Insulation Class        F
Stator Connection    Y

Thirdly, GT Operation
      3#GT starts operation from July in ***3, until now start **4 times, among them ignition **7 times. In total, it operates for 6,**1 hours, among which operation burning liquid fuel (light oil) for 5,**2 hours, burning gas fuel (gas) for **9 hours. At present, the operation of 3# GT is  normal.

Fourthly, the Introduction to Inspection and Repair
1. in Nov of ***4, after operating 4,**4 hours, GT goes into combustion inspection(not to dismantle transition), replacing flame connecting tubes in 7#*8#(including 7#) and 3#*2#(including 2#), and flame tube like *0#.
2. in April of ***4, after operting 5,**0 hours, Gt goes into combustion inspection. We replace flame connecting tubes in 7#*8#(including 7#) and 9#*8#(including 9#). We sent 5 transition portions to Liming to repair: among them, the attrition of left side tail frame nearby negative camber is so severe as to be sent to repair.