Mitsubishi Diesel Engine Generators (Year 2008) Model: S12R-PTA (1250 kva, 3300V, 50Hz)

Transcription

1 Mitsubishi Diesel Engine Generators (Year 2008) Model: S12R-PTA (1250 kva, 3300V, 50Hz) 1. Condition Engine starts within 40 seconds after Automatic Start ordered. Lubricating Oil must be Operating Condition: supplied as required. Installation: Outdoor Ambient Temperature: -5 to 40 degrees C Relative Humidity: less than 80% Altitude: Lower than 300 meters above sea level Seismic Qualification: Horizontal 1.0G, Vertical 0.5G 2. Diesel engine (1) Engine Main Items Type: 4 Cycle, Water-Cooled direct injection, V-shaped Turbo system, Air-cooling machine Model: Mitsubishi S12 R-PTA Num. of cylinder: 12 Bore x Stroke: 170mm x 180mm Engine Total L Displacement : Power/RPM: Nominal Output 1,080 kw/1,500 min-1 Net brake mean 1.76 MPa (at Nominal Output) effective pressure: Mean piston speed: 9. 0m/s Applicable Fuel: Bunker A Fuel consumption rate: kg/kw h +5% margin (rated output) Lubricating oil: API CD class, SAE number 30, inventory 180L Lubricating oil Approx L/h (rated output) consumption: Cooling type: Radiator-Water Cooled system Cooling water: Freshwater + antifreeze (non-amine)30% mixed water Cooling water capacity: Approx. 280L( Engine: 125 L, Radiator: 135L, Others: 20L ) Speed fluctuation rate: at Stabilization less than 5 %, at instant less than 10 % Rotation direction: CCW from the flywheel side Engine dimension: (excluded auxiliary equipment) L 2,320mm W 1,360mm H 1,565mm Engine weight: Dry 4,800kg, in Operation 5,090kg 1

2 (2)Individual Equipment Items a) Fuel system Filter: Paper element type Supply pump: Push piston Injection pump: (2) Mitsubishi PS6 Injection valve: BOSCH hole nozzle Governor: Electric type, Constant speed, Governor control box (in the engine hood) b) Lubricating oil system By the wet sump, install a 150L's oil pan under the crank case and engine parts are lubricated by the engine drive gear pump forcibly. Engine drive gear type, with relief valve, Discharge volume 4.80L/min Discharge Pump: pressure 0.4 to 0.65 MPa Cooler: Fresh water cooling-multiplate type, with thermoregulation valve Filter: Paper element type, with DP alarm switch Priming pump: 3P 200 V 1.5 kw c) Air supply system Mitsubishi Radial flow exhaust turbine, Boost pressure: 0.17 MPa, Speed: 64,000 Supercharger: min-1, Max. Speed: 72,000 min-1 Air cleaner: Turbine silencer Air cooler: Fresh water cooling-multiplate type d) Cooling System The cooling method is radiator cooling type using fresh water. The engine side coolant circulates by the water pump of the engine drive and when it is cold, bypass the radiator with the thermostat which is installed in the engine. Engine driving, Centrifugal spiral type, Capacity 1,650L/min (at the discharge Engine side pump: pressure MPa) When cooling water temperature is less than 71 degrees C, bypass the coolant and Thermostat: prevent the supercooling of the engine Water heater: (2)3P 200 V 2 kw (Thermostat switch control) e) Starting system Electrical starting by starter DC24 V, (2)7.5 kw, Relay of reclosing preventive device, Relay of non-gear Starter: preventive device Battery: DC24 V HS-400EX12 (in the engine hood) f) Shutdown system Shutdown solenoid: DC24 V 15 A (Fuel cutoff by exciting coil) Manual Shutdown: by manual lever 2

3 3. Three-phase AC synchronous generator Type: NTAKL-SEK Rating: Sequence Rated output: 1,250 kva(1,000 kw) Number of pole: 4P Speed: 1,500 min-1 Voltage: 3,300 V Current: 219 A Frequency: 50 Hz Power factor: 0.8 PF(lagging) Brushless system(shunt winding) by AC exciter, Automatic voltage regulator (in the Excitation system: generator BOX) Connection: Star, 3 phase 3 line, Neutral grounding Rotate Direction: CCW from the anti-direct connection side Terminal drawer Top right from the anti-direct connection side direction: Bearing type: One side rolling bearing Insulation: Stator winding F type, Rotor winding F type Specification: JEC Direct engine: Diesel engine 4. Dimension&Weight 6,535L x 3,350W x 3,820H mm In Dry : 18,000 kg, In Operation 18,450 kg 5. Remarks The System is originally designed for parallel operation by two generators. The individual Lot can be operated by stand-alone, and each lot includes single operation-board which is removed from the master board for parallel Operation. One side of each single operation-board requires the additional safety-cover. 3

4

5

6

7

8

9