Hobart 60CU24, Operation And Maintenance Manual With Illustrated Parts List, Page: 18 / 234

OM-2098C / Operation and Maintenance Manual
60CU24 / Series 500060C / 400 Hz. Generator Set
November 16, 2007
Revision 8 Chapter 1-1
Page 4
GENERATOR PROTECTIVE SYSTEM
Over voltage Trips at 126 volts after a 1 second time delay.
Trips at 140 volts in 160 milliseconds.
Trips at 180 volts in 50 milliseconds.
Under voltage Trips at any voltage below 100 volts after 7 seconds.
Over frequency Trips at any value between 420 Hz and 480 Hz after a 5 second time
delay. Trips immediately at any frequency exceeding 480 Hz.
Under frequency Trips at 380 Hz. or less after a 7 second time delay.
Overload time delay Trips in approximately 5 minutes at 125% load of 90 kVA on either
output or 125% of 120 kVA on both outputs combined.
DC OUTPUT (OPTIONAL, SEE APPENDIX A)
Output Voltage 28.5 VDC
Amps (Continuous) 600 A
Amps (Peak/Starting/Overload) 2700 A for 2 seconds
2000 A for 10 seconds
1500 A for 30 seconds
1200 A 90 seconds
750 A 600 seconds
ENGINE
Manufacturer Cummins Engine Company
Model No. QSB4.5
Type In-Line 4 cylinder, 4 cycle diesel, electronic controlled
Bore and Stroke 4.02 in. x 5.42 in. (102 mm x 138 mm)
Displacement 275 in
3
(4.5 L)
Horsepower 110 hp (82 kW)
Idle speed 1000 ± 50 rpm
High speed limiting 2750 ± 75 rpm
Normal governed speed 2400 rpm
Firing Order 1-3-4-2
Electrical system 12 VDC
Ground Negative
Lubricating oil capacity (w/ filter)
10 quarts (9.5 liters)
Coolant capacity system 38 quarts (36 liters)
Specifications and Capabilities
Figure 2 (Sheet 2 of 2)
6) Engine and Generator
The engine and generator comprise the principal components of the generator set. They are mounted on
the welded steel frame of the chassis. The engine coolant radiator is also mounted on the frame just
forward of the engine-generator combination. Figures 4 and 5 are illustrations showing the location of all
major components and sub-assemblies.