John Deere IDLC125-3J - Manual
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Engine Performance Curves
6068 - Generator
June 2007
Ref: Engine Emission Label
Tier-3 Emission Certifications:
Certified by:
Notes:
ENGINE PERFORMANCE CURVE
Air Intake Restriction ................... 12 in.H
2
O (3 kPa)
Exhaust Back Pressure ........... 30 in.H
2
O (7.5 kPa)
Gross power guaranteed within + or - 5% at SAE J1995
and ISO 3046 conditions:
77 °F (25 °C) air inlet temperature
29.31 in.Hg (99 kPa) barometer
104 °F (40 °C) fuel inlet temperature
0.853 fuel specific gravity @ 60 °F (15.5 °C)
Conversion factors:
Power: kW = hp x 0.746
Fuel: 1 gal = 7.1 lb, 1 L = 0.85 kg
Torque: N•m = lb-ft x 1.356
All values are from currently available data and are subject
to change without notice.
STANDARD CONDITIONS
All OEM Gen Set Engine Applications must be pre-
screened for torsional vibration compatibility with the
respective alternator end hardware.
OEM Engine Application Engineering will perform this
computer-based analysis work upon request.
- PRIME
- STANDBY
70
(32)
50
(23)
30
(14)
Fuel -- lb/hr (kg/hr)
20
(15)
220
(164)
260
(190)
140
(104)
180
(134)
60
(45)
100
(75)
Brake Power -- hp (kW)
300
(224)
PowerTech E
TM
6.8L Engine
Model: 6068HF285
180 hp (134 kW) Prime
197 hp (147 kW) Standby
[See Option Code Tables]
Rating:
Gross Power
Application: Generator (60 Hz)
Target:
125 kWe Standby Market
* Revised Data
Curve 6068HF2851800197 ............................. Sheet 1 of 2
June 2007
Nominal Engine Power @ 1800 RPM
Prime
Standby
HP
kW
HP
kW
180
134
197
147
Generator
Efficiency
%
Fan Power
(6% of Standby)
Power
Factor
Prime Rating
2
Standby Rating
1,2
ISO 8528 G2
Block Load
Capability
hp
kW
kWe
kVA
kWe
kVA
88-92
10.9
8.1
0.8
111-116
139-145
122-128
153-160
100%
Note 1: Based on nominal engine power.
Note 2: kWe / kVA rating assumes 90% efficiency. “Generator Efficiency %” will vary.
CARB; EPA
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