POWER PLANT 260 MW OIL FIRED POWER PLANT
2 x 260 MW Oil- Fired- Power- Plant
Power plant built in the late 60’th as strategic reserve and moth- balled after few years of
operation
Technical Data for 260 MW type
Boiler: Svenska Maskinverken
Type Horizontal design, forcedcirculation
Fuel Diesel, Bunker C and WRD oil
Steam pressure 160 bar
Steam temperature 540 degree C
Steam capacity 810 tons/hour
Steam Turbine: ABB Stal
Type: Durax, radial and axial turbine systems, 3000 rpm
Generator: ASEA
Type 50 Hz, hydrogene-cooled
Voltage 12.5 kV
Main Transformer: ACEC and ELIN
Voltage 130 / 12,5 kV
Start-up Transformer: ASEA
Voltage 130 / 6 kV
Auxiliary Transformers: ASEA
Voltage 6 / 0.5 kV
Steam Condenser: Water-cooled,
Water flow 8.5 m3/sec.
NOx emissions 50 mg/MJfuel with diesel
95 mg/MJfuel with bunker C
Efficiency 38 % net.
Operating Data: Operated hours: 50 000 hours
Number of starts: 1 000 starts
Year of commissioning Plant B3 in 1967,
Plant B4 in 1969.
Condition of the plant moth- balled in very good condition
Ref : 11226
HFO 210 MW FIRED POWER PLANT
Power Plant major milestones
• Commissioning1974
• VKW boiler in conservation during1983-1989. LMZ turbine in operation, connected
to another boiler.
• End of preserving in 1989. LMZ steam turbine and VKW oil-fired boiler have been
reconnected.
• Generator overhaul1981
• Peak and reserve unit since1989
Note:
The plant can be operated for test purpose.
Technical Description of Main Equipment
Boiler:
Type : Benson, 561 MW (fuel) VKW heavy fuel fired once through type boiler. Tower-type design.
Manufacturer : VKW, Germany 1973
Pressure & temperature : 182 kg/s, 190 bar, 540 oC, superheated steam. reheater 150 kg/s, 25 bar, 540 oC
Burners : 16 nos. in 4 levels on one wall, VKW, pressure type atomizers
Fuel spec : HFO, 115-1000 cSt (50 oC), Sulphur content max 3,5%, LFO in start ups (burner level 2), All burners are needed for 100% steam output
Combustion air system : FD-fans, 2 pcs, 86 Nm3/s, motors 10,5 kV, 1500 kW, Rotating air preheater “LUVO”, 30 000 m2, Note! Boiler has overpressure combustion without flue gas fans.
Hours operated : 19 000h. Boiler was isolated from turbine and conserved from 1983 until 1989. After 1989 plant has been in operation less than 2000 h.
Emissions : NOx 650 mg/nm3, 02=3% dry gas particles 20 mg/nm3, 02=3% dry gas
Turbine:
Type : LMZ K-200-181-1
High pressure cylinder : 181 bar, 182 kg/s, 535 oC out 25 bar, 277 oC
Medium pressure cylinder : 23 bar 535 oC out 1 bar, 150 kg/s
Low pressure cylinder : Double flow type incl. Bauman stage Outlet 0,030 bar
Condenser : Material of condencer tubes: CuNi30, 9000 m2 Cooling water: Baltic sea water 7 m3/s
Generator : Elektrosila TBB-200-2A, water/hydrogen cooled, 250 MVA, 50 Hz, 15,75 kV
Hours operated : 35000 h. From 1983 until 1989 turbine was connected with coal fired boiler “Kristiina 2”
Feed water system:
Feed water pumps : Hallberg RBS150/40 / HDV150Cx9 electrical motors: Stromberg 10,5 kV, 4800 kW, 2 nos., 60% each
Feed water tank : Volume 240 m3, length 27 m, diameter 3.4 m equipped with deaerator, Stork, 20-200 kg/s
Feed water heater : 3 HP-heaters, 3 LP-heaters,
Vacuum system : 2 pcs sea water ejectors for 100% load
Make-up water: 2 pcs make-up water pumps for 100% load
Auxiliaries: Block transformer 15,75 / 110 kV, 50 Hz 250 MVA
Dimensions: HxWxL
Weight: total
Auxiliary transformers : 15,75 kV/10.5 kV, 25 MVA
Dimensions: HxWxL
Weight: total
Fuel system : Four transfer pumps with piping,
Process automation: Siemens 1974
Performance
• Plant gross output (electrical) is 220 MWe
• Internal consumption is 10 MW
• Netto electrical output is 210 MWe.
Ref : 11227
HFO FIRED POWER PLANT, 160 MWEL + 175 MWTH
Power Plant major milestones
• Commissioning 1972
• ID fans capacity increase 1976
• VKW boiler in conservation during 1982-1998 (operating hours therefore only
44 200). Parsons turbine in operation connected to another boiler.
• LP turbine full retrofit by Skoda 1994 (approx. 125 000 operating hours totally).
• Generator AVR retrofit by ABB 1997
• Unit automation replaced with DCS by Metso Automa-tion 1998
• Peak and reserve unit since 1998.
Note:
The plant can be operated for test purpose.
Technical Description of Main Equipment
Boiler
Manufacturer : VKW
Type: Benson type tower boiler with reheat
Steam parameters: 147 kg/s, 180 bar, 535 deg C
Fuel: Heavy fuel oil, Gas firing easy to retrofit
Emissions : NOx 160 mg/MJ Particles 20 mg/MJ in oil firing
Turbine
Manufacturer: C. A. Parsons
Nominal gross electr. Output : 170 MW
Net electrical output : 160 MW
Generator
Rating: 165 MW
Apparent rating 206 MVA
Power factor 0,8
Voltage 14 500 Volt
Current 8 212 A
Speed 3 000 rpm
Frequency 50 Hz
Transformer
Main transformer 14,5 / 110 kV
Block transformer 14,5 / 10 kV
Scope of supply
Complete power plant, fully operational, with the exception of fuel storage tanks.
Ref : 11228
MAN B&W AUGSBURG – AEG – ACEC - 30 MW DIESEL GENERATOR
Engine:
Manufacturer MAN B&W Augsburg Germany
Type 12 KSZ 90/160
Stroke 2
Rated Power 29:440 kWel
Max.Power 32.280 kWel
Running hours 12.800 hrs
Last comprehensive overhaul 1 000 h ago
Manufacturing Date 1979
Speed 125 rpm
Fuel HFO
Fuel consumption (100 %load) 225 g/KWH
Alternator:
Manufacturer AEG
Rated Power 39 MVA
Voltage 10,5 KV
Frequency 50 Hz
Cos Phi 0,8
Heat recovery Boiler:
13 t/h / 220-250°C
Dimensions:
Length 25,6 m
Height 10,8 m
Width 7 m
Weight 1.120 t
Type of turbochargers:
2xMAN ZA 90/54
Constant pressure
Cooling System:
Idem+Intermediate
circuit exchangers
Exciter :
Manufacturer AEG
Rated output (kW) 213
Rated voltage (V) 344
Rated current (A) 619
Speed (rpm) 1.500
Weight (ton) 3
Transformer :
Manufacturer ACEC
Type indoor
Rated output (MVA) 39,1
Rated current prim (A) 2.126
Rated current sec (A) 604
Voltage ratio 10.6/36 kV
Cooling water cooled
Ref : 11230
