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Introduction to Marine Engineering

Section 8.2 Generators

Four 4000 kW, 6600 volt, three-phase generators provide electrical power for propulsion and for all other normal ship’s requirements. Each generator is directly driven by a 16-cylinder, 4-stroke, 4200 kW diesel engine. Since the generators have eight poles, when driven at 900 rpm they produce 60 Hz AC.
Table 8.2.1. Main Generator Specifications
Manufacturer Hyundai
Model HSJ9 913-08P
Type 8 pole, cylindrical rotor, brushless, separately excited
Rated Output 5066 kVA / 4053 kW
Rated Voltage 6.6 kV AC
Current 443.2 A
Speed 900 rpm
Frequency 60 Hz
Power factor 0.8
Excitation voltage 60 V DC
Excitation current 4 A DC