HFO Power Plant, 24 MW

Description

  1. Prime Mover
    1. Quantity: 4 units (Wartsila - Finland)
    2. Type: Vasa 18V32E
    3. Modified LN stage 01, year of manufacture 1997
    4. Number and arrangement of cylinders: 18, V type
    5. Cylinder bore diameter: 320 mm
    6. Stroke length: 350 mm
    7. Engine speed: 750 rpm
    8. Mean piston speed: 8.75 m/s
    9. Swept volume per cylinder: 28.15 dm3
    10. Compression ratio: 12:01
    11. Governor manufacture: Woodward, type 721, electronic governor
    12. Governor actuator type: PG-EG 58
    13. Wet sump capacity: 4,020 liters
    14. Cooling water volume of engine: 1,360 liters
    15. Turbocharger: ABB - Switzerland, type VTR 354 P – 11, approximate speed 21,000 rpm, lubrication self
  2. Generator
    1. Quantity: 4 units (ABB Industry Oy - Helsinki, Finland)
    2. Type: HSG 900XS8
    3. Year of manufacture: 1997
    4. Rated apparent power: 7,500 kVA
    5. Rated power: 6,000 kW
    6. Voltage: 11,000 V
    7. Current: 394 A
    8. Frequency: 50 Hz
    9. Phase: 3
    10. Speed: 750 rpm
    11. Poles: 4 pairs
    12. Connections: Y (star)
    13. Power factor: 0.8
    14. Bearings type: shell type, self-lubricating
  3. Electrical Systems
    1. Station transformer: 1 unit (Lanka Transformers Ltd. -), rated power 1,600 kVA, rated frequency 50 Hz, no of phases 3, rated voltage (HV/LV) 11,000/415 V, rated current (HV/LV) 83/2,225 A, connection symbol DYN 11, types of cooling ONAN, approx. masses total 4,240 kg, oil 1,118 kg, no of tap positions
    2. Medium voltage switchgear system: ABB Transmit Oy, type MH 12 C 31.5, operating voltage 11,000 V, rated voltage 12,000 V, rated current 2,500 A, frequency 50 Hz, no of phases 3, generator cubicles 4 units, breaker type HPA 12/631 MH 08, specifications 12 kV, 630 A, SF6, station transformer cubicle 1 unit, breaker type HPA 12/631 MH 08, specifications 12 kV, 630 A, SF6, outgoing cubicle 2 units, breaker type HPA 12/1631 MH 08, specifications 12 kV, 1600 A, SF6, bus tie cubicle 1 unit, breaker type HPA 12/2531 MH 10, specifications 12 kV, 2500 A, SF6
    3. Low voltage switchgear system: Veo Switchgears, type Veda 5000, rated voltage 400 V, rated current 2,500 A, frequency 50 Hz, phases 3, main breakers Q1 and Q2 (Merlin Gerin), type M25N1 (Masterpact), air circuit breaker specifications 690 V, 2500 A, main breakers Q3 and Q4 (Merlin Gerin), type C 801N Compact, circuit breaker specifications 750 V, 800 A, frequency converter 4 units – one per engine (Vassa Control (Veo)), type Vacon CX 90 4A0N0, specifications 380-440 V
    4. High voltage switchgear system: AEG T & D, rated voltage 33 kV, main breakers 2 units, type SF6 circuit breaker S1-72.5 F1/2520, rated voltage 72.5 kV, rated normal current 2000 A, rated frequency 50/60 Hz, isolator switch details: main isolator with earth switch - Mesa (Spain), type SGPT-36/1.250, specifications 36.0 kV, 1250 A, weight 228 kg, isolators of two feeders - Mesa (Spain), type SGP-36/1.250, specifications 36.0 kV, 1250 A, weight 228 kg
    5. DC system rated voltage: 110 VDC
  4. Mechanical Systems
    1. Oil lubrication purification system: Lo separator – 4 units (one per engine), Alfa Laval model LOPX 707 SFD - 34, rated capacity 3200 L/hr, sludge production 5 liters/discharge, max water consumption 5 liters/discharge, bowl speed 5175 rpm, separator el motor capacity 12 kW, type ABB MBT 160 M, feeder pump el motor capacity 1.1 kW, type ABB M2AA 90 LA, pump capacity 2000 L/h, 2 bar, type IMO ACE 038K, electrical heater capacity 50 kW, type AL EHM 50
    2. Fuel purification system: HFO separator – 2 units (one per engine), Alfa Laval model FOPX613 TFD-20, rated capacity 9600 L/hr for fuel viscosity 180 CST/50°C, sludge production 11 liters/discharge, max water consumption 11 liters/discharge, bowl speed 4,140 rpm, separator el motor capacity 16 kW, type ABB MBT 160 L, feeder pump el motor capacity 2.2 kW, type ABB M2AA 100 LA, pump capacity 6000 L/h, 1 bar, type IMO ACP 045N, electrical heater capacity 160 kW, type Vesta EO 160
    3. Fuel transfer unit: LFO transfer unit, transfer pump 2, type ACE 038 N2 NTBP T4B, capacity 7.5 m3/h, make IMO, el motor 2, type MT90L MK 110 050, capacity 2.2 kW, make ABB; HFO transfer unit, transfer pump 2, type ACE 038 N2 NTBP T4B, capacity 8.3 m3/h, 4 bar, make IMO, el motor 2, type MBT112M MK 142031-B, capacity 4.0 kW, make ABB, electrical heater 2, type E072, capacity 72 kW, make Vesta, flow rate 8.3 m3/h