TP-6137 5/03 1Section 1 Specifications
Section 1 Specifications
1.1 General
This manual covers the operation, maintenance,
troubleshooting, and repair of the alternating current
marine generator sets.
Have an authorized service dealer/distributor perform
required servicing to assure your unit continues to meet
USCG requirements.
Please take a few moments to read this manual, then
carefully follow all service recommendations. Keep this
manual aboard your craft for future reference. See
Figure 1-1 for identification and location of components.
Your craft is equipped with a dependable 120 volt
(60 Hz) or 230 volt (50 Hz), single phase, alternating
current generator set.
The 4EOZ/3.5EFOZ models are powered by a
Farymann one-cylinder, direct water-cooled, four-cycle
diesel engine.
Kohler Co. develops all Kohlerr marine generator set
ratings using accepted reference conditions of 25_C
(77_F) and pressure of 98.9 kPa (29.2 in. Hg) dry
barometer. ISO 3046 and ISO 8528-1 include reference
conditions and output calculations. Obtain technical
information bulletin (TIB-101) on ratings guidelines for
complete ratings definitions.
1.2 Generator
Generator Model 4EOZ 3.5EFOZ
Dimensions, mm (in.)
Length 560 (22.05)
Width 390 (15.35)
Height 490 (19.29)
Weight, kg (lbs.) 209.5 (95.0)
Air requirements—combustion, L/min. (cfm) 436 (15.4) 363 (12.8)
Fuel consumption, Lph. (gph) at % load
25% 0.64 (0.17) 0.60 (0.16)
50% 1.02 (0.27) 0.96 (0.25)
75% 1.36 (0.36) 1.28 (0.34)
100% 1.70 (0.45) 1.60 (0.42)
Generator type 2 pole, rotating field
Coupling type Tapered hub
Excitation type Brushless exciter
Shaft RPM 3600 3000
Number of output leads 4 2
Voltage regulation model Capacitor type
Voltage regulation ±5%
Frequency regulation ±3%
Voltage 120 230
Amps @ 25 °C(77°F) 29.2/14.6 13.9
kW/kVA@25°C(77°F) 3.5 3.2
Phase (Hz) 1 (60 Hz) 1 (50 Hz)
Cold main field (rotor) resistance (ohms) 2.57
Cold stator resistance (ohms)
1--2 0.96 1.23
3--4 0.96 --
C1--C2 2.32 2.87
10--11 0.068 0.091
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