Certified for US EPA-Tier 2 / Constant Speed
Standard Model [1250kWe/60Hz]
MITSUBISHI
S12R-Y2PTAW-1
SPECIFICATION SHEET
DIESEL ENGINES
GENERAL ENGINE DATA
Type
4-Cycle, Water Cooled
Aspiration
Turbo-Charged, Inter Cooler
(Fresh water to Cooler)
Cylinder Arragement
No.of Cylinders
60oV
12
Bore mm(in.)
170
180
49.03 (2992)
14.5:1
(6.69)
(7.09)
Stroke mm(in.)
Displacement liter(in3)
Compression Ratio
Dry Weight - Engine only - kg(lb)
Wet Weight - Engine only - kg(lb)
PERFORMANCE DATA
Steady State Speed Stability Band at any Constant Load
Electric Governor - %
Maximum Overspeed Capacity - rpm
Moment of inertia of Rotating Components - kgf・m2(lbf・ft2)
(Includes Std.Flywheel)
5270 (11620)
5555 (12249)
±0.25 or better
2100
75.3
(1787.2)
(3255.6)
Cyclic Speed Variation with Flywheel at 1800rpm
1/576
ENGINE MOUNTING
Maximum Bending Moment at Rear Face of Flywheel Housing - kgf・m(lbf・ft)
AIR INLET SYSTEM
450
Maximum Intake Air Restriction (Includes piping)
With Clean Filter Element - mm H 2O (in.H2O)
With Dirty Filter Element - mm H2O (in.H2O)
EXHAUST SYSTEM
400
635
(15.7)
(25.0)
Maximum Allowable Back Pressure - mm H2O (in.H2O)
LUBRICATION SYSTEM
600
(23.6)
Oil Pressure at ldle - kgf/cm2(psi)
2～3 (29～43)
5～6.5 (71～93)
at Rate Speed - kgf/cm2(psi)
o
Maximum Oil Temperature - C(oF)
110
150
108
180
6.5o
6.5o
22.5o
230
(40)
(28.5)
(47.6)
Oil Capacity of Standard Pan
High - liter (U.S.gal)
Low - liter (U.S.gal)
Total System Capacity (lncludes Oil Filter) - liter (U.S.gal)
Maximum Angle of lnstallation (Std. Pan)
(Engine Only)
Front Down
Front Up
Side to Side
COOLING SYSTEM
Coolant Capacity of Jacket (Engine only) - liter (U.S.gal)
Coolant Capacity of Air cooler (Engine only) - liter (U.S.gal)
Maximum External Friction Head at Engine Outlet - kgf/cm 2(psi)
(For Jacket and Air Cooler)
116
14
(30.6)
(3.7)
0.35
10
(5.0)
(32.8)
Maximum Static Head of Coolant above Crankshaft Center - m(ft)
o
Standard Thermostat (modulating)Range of Jacket - C(oF)
71～85 (160～185)
42～55 (108～131)
98
o
Standard Thermostat (modulating)Range of Air Cooler - C(oF)
o
Maximum Coolant Temperature at Engine Outlet of Jacket - C(oF)
(208)
Minimum Coolant Expansion Space - % of System Capacity
(For Jacket and Air Cooler)
10
45
10
(0.4)
(113)
(0.4)
o
Maximum Coolant Temperature at Intercooler lnlet, PTAW type - C(oF)
Maximum Air Restriction on Discharge Side of Radiator and Fan - mm H 2O(in.H2O)
APPLICATION : GENERATOR
Pub. No. T13-0634-E
Oct. '06 Printed in Japan
Certified for US EPA-Tier 2 / Constant Speed
Standard Model [1250kWe/60Hz]
MITSUBISHI
S12R-Y2PTAW-1
SPECIFICATION SHEET
DIESEL ENGINES
FUEL SYSTEM
Fuel Injector
Mitsubishi PS6 Type × 2
Maximum Suction Head of Feed Pump - mm Hg (in. Hg)
Maximum Static Head of Return Pipe - mm Hg (in.Hg)
STARTING SYSTEM
Battery Charging Alternator - V- Ah
Starting Motor Capacity - V - kW
75
150
(3.0)
(5.9)
24-30
24-7.5 × 2
1.5
Maximum Allowable Resistance of Cranking Circuit - m Ω
Recommended Minimum Battery Capacity
At 5oC (41oF) and above - Ah
300
600
Below 5oC (41oF) through - 5oC (23oF)
The specifications are subject to change without notice.
Pub. No. T13-0634-E
APPLICATION : GENERATOR
Oct. '06 Printed in Japan
Certified for US EPA-Tier 2 / Constant Speed
Standard Model [1250kWe/60Hz]
MITSUBISHI
S12R-Y2PTAW-1
ENGINE RATING
SPECIFICATION SHEET DIESEL ENGINES
All data represent net performance with standard accessories such as air cleaner, inlet /exhaust manifolds, fuel oil system,
L.O. pump, etc. under the condition of 100kPa(29.6inHg) barometric pressure, 77oF(25oC) ambient temperature and 30%
relative humidity.
STAND-BY POWER
60Hz
PRIME POWER
60Hz
ITEM
UNIT
rpm
Engine Speed
1800
1800
No. of Cylinders
12
Bore
mm
(in.)
170
(6.69)
180
Stroke
mm
(in.)
(7.09)
49.03
Displacement
liter
(in.3)
(2992)
Brake Horse power without Fan
HP
1881
(1403)
19.4
1709
(1275)
17.7
(kW)
kgf/cm2
Brake Mean Effective Pressure
without Fan
(psi)
(276)
10.8
(252)
10.8
Mean Piston Speed
m/s
(ft/min)
HP
(2126)
193
(2126)
193
Maximum Regenerative Power
Absorption Capacity without Fan
Intake Air flow
(kW)
(144)
135
(144)
121
m3/min
(CFM)
m3/min
(CFM)
liter/min
(U.S. GPM)
liter/min
(U.S. GPM)
m3/min
(CFM)
HP
(4767)
356
(4273)
320
Exhaust Gas Flow
Coolant Flow
(12570)
1850
(489)
340
(11299)
1850
(489)
340
Coolant Flow to Intercooler
(PTAW only)
(90)
(90)
Cooling Air Flow
－
－
(Std. Fan)
Allowable Fan Loss Horse Power
67
67
(kW)
(50)
(50)
Radiated Heat to Ambient
Heat Rejection to Coolant
kcal/hr
(BTU/min)
kcal/hr
(BTU/min)
kcal/hr
(BTU/min)
kcal/hr
(BTU/min)
dB(A)
101344
(6703)
439159
(29045)
439159
(29045)
1192141
(78847)
110
91105
(6026)
394787
(26111)
394787
(26111)
1059861
(70098)
108
Heat Rejection to Air Cooler
(PTAW Version)
Heat Rejection to Exhaust
Noise Level (1 m height & distance)
(excludes, lntake,Exhaust & Fan)
The specifications are subject to change without notice.
Pub. No. T13-0634-E
APPLICATION : GENERATOR
Oct. '06 Printed in Japan
|