Technical Data
@Perkins ®
1100 Series 1103A-33G
Gen Set 30,4 kWm @ 1500 rev/min
35,4 kWm @ 1800 rev/min
Basic technical data Performance
Number of cylinders . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3 Steady state speed stability at constant load:
Cylinder arrangement ... ... ... ... ... ... ... ... ... ... ... ... Vertical in-line - G2 ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ± 0.75%
Cycle. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Four stroke Note: All data based on operation to ISO 3046/1, BS 5514 and
Induction system... ... ... ... ... ... ... ... ... ... ... ... Naturally Aspriated DIN 6271 standard reference conditions.
Compression ratio. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 19.25 : 1 Test conditions
Bore .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 105 mm (4.13 in)
Air temperature. . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 25 °C
Stroke .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 127 mm (4.99 in)
Cubic capacity .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3.3 litres Barometric pressure... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 100 kPa
Relative humidity ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 30%
Direction of rotation... ... ... ... ... ... ... ... .Clockwise view from front
Firing order ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 1,2,3 Sound level
Total weight (engine only) Overall sound pressure level (cooling pack and air cleaner fitted):
-dry ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...412 kg - at 1500 rev/min ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 88.1dBA
-wet ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...430 kg - at 1800 rev/min ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 90.7dBA
Overall dimensions
Sound pressure level from the mean of 4 microphones at the front,
-height... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 951 mm (37.44 in)
left, right and above the engine. Exhaust was piped away out of the
-length... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 1029 mm (40.51 in)
-width (including mounting brackets) ... ... ... ... 629 mm (24.76 in) test cell.
Moment of inertia (mk²) If the engine is to operate in ambient conditions other than those of
Engine: the test conditions, suitable adjustments must be made for these
- longitudinal . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 23.3 kgm² changes. For full details, contact Perkins Technical Service
- horizontal ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 38.1 kgm² Department.
- axial ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 24.4 kgm²
Flywheel (polar) ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1.14 kgm²
Centre of gravity (wet)
- forward from rear of block... ... ... ... ... ... ... ... .. 210 mm (8.26 in)
- above centre line of block... ... ... ... ... ... ... ... .. 120 mm (4.72 in)
- offset of RHS of centre line. ... ... ... ... ... ... ... ... 40 mm (1.57 in)
General installation
Type of Operation and Application
Designation Units Prime Stand-by Prime Stand-by
50 Hz 50 Hz 60 Hz 60 Hz
Gross engine power kWm 28,2 31,0 33,2 36,5
Brake mean effective pressure kPa (lbf/in²) 684 (99.2) 752 (109.0) 669 (97.0) 736 (106.7)
Mean piston speed m/s (ft/s) 6,35 (20.8) 6,35 (20.8) 7,62 (25.0) 7,62 (25.0)
ElectropaK net engine power kWm 27,7 30,4 32,2 35.4
125,5 125,5 151,0 151,0
Engine coolant flow 35 kPa restriction I/min (UK gal/min)
(27.6) (27.6) (33.2) (33.2)
Combustion air flow m³/min (ft³/min) 2,16 (76.2) 2,15 (75.9) 2,6 (91.8) 2,57 (90.7)
Exhaust gas flow (max) m³/min (ft³/min) 5,7 (201.2) 5,8 (204.8) 6,4 (226.0) 6,6 (233.0)
Exhaust gas temperature (max) in manifold °C (°F) 500 (932) 520 (968) 520 (968) 530 (986)
Cooling fan air flow m³/min (ft³/min) 53,0 (1871.6) 53,0 (1871.6) 70,0 (2472.0) 70,0 (2472.0)
Overall thermal efficiency % 39,2 39,2 40,0 37.3
kWe 24,0 26,4 27,9 30,6
Typical genset electrical unit (0.8 pf 25° C
kVA 30,0 33,0 34,9 38,2
Assumed alternator effiency % 87
Energy balance
Power in fuel (Fuel heat of combustion) kW (Btu/min) 72,0 (4098.2) 79,0 (4496.6) 83,0 (4724.3) 98,0 (5578.1)
Power output (gross) kW (Btu/min) 28,2 (1605.1) 31,0 (1764.5) 33,2 (1889.7) 36,5 (2077.5)
Power to cooling fan kW (Btu/min) 0,5 (28.4) 0,6 (34.1) 1,0 (56.9) 1,1 (62.6)
Power output (net) kW (Btu/min) 27,7 (1576.6) 30,4 (1730.3) 32,2 (1832.8) 35,4 (2014.9)
Power to coolant and lubricating oil kW (Btu/min) 16,0 (910.7) 18,0 (1024.5) 18,0 (1024.5) 22,0 (1252.2)
Power to exhaust kW (Btu/min) 22,0 (1252.2) 25,0 (1422.9) 27,0 (1536.8) 34,0 (1935.2)
Power to radiation kW (Btu/min) 5,0 (284.5) 6,0 (341.5) 5,0 (284.5) 6,0 (341.5)
Caution: The airflows shown in this table will provide acceptable cooling for an open power unit operating in ambient temperatures of up
to 53 °C (127 °F) or 46 °C (114.8 °F) if a canopy is fitted. If the power unit is to be enclosed totally, a cooling test should be done to check
that the engine cooling is acceptable. If there is insufficient cooling, contact Perkins Technical Service Department.
