Kohler 9 KVA Generator 9EFOZD

We chose the Kohler 9 KVA because it was water cooled, quiet and 1500 revs to give a long life (we hope). We thought the 9 Kva would give us enough power to cope with charging the large battery bank (at approx 3.2KW) while also running all the domestics. We didn't want such a big generator that it would be running at low capacity through its life. We tend to run it at 50% to 75% of its capacity which we think is about right. It is mounted on a dexian shelf in the engine room and seems pretty quiet, but I would put it on heavier gauge bed if I had the choice again so that the small vibrations we feel through the boat would be less. You can hardly hear it when outside the barge, just the cooling water splashing.

Genny

Engine Specifications @ 50 Hz


Type 4 cycle
Cylinder, quantity 3
Displacement, L (cu. in.) 1.33 (81.14)
Bore and stroke, mm (in.) 82 x 84 (3.23 x 3.30)

Compression ratio 19.2:1
Combustion system Direct injection
Rated rpm 1500
Max. power at rated rpm, HP 15.1
Cylinder block material Cast iron
Cylinder head material Cast iron
Piston rings: quantity, type 2 compression/1 oil
Crankshaft material Forged steel
Connecting rod material Forged carbon steel
Governor, type Centrifugal, mechanical

Engine Electrical System 50 Hz

Battery, voltage 12 volt (standard)
24 volt (optional)
Battery, charging 40-amp alternator
Battery, minimum recommendation 500 CCA, 100 amp hr.
Starter motor 1.8 kW Bendix,
gear-reduction
automotive type

Air & Cooling Requirements 50 Hz

Engine combustion air requirements, L/min. (cfm) 900 (31.8)

Engine/generator cooling requirements, L/min. (cfm) 3964 (140)

Cooling water flow (raw) Lpm (gpm) 18.9 (5.0)

Fuel Consumption 50 Hz
Diesel, Lph (gph) at % load

100% 75% 50% 25%
3.2 (0.84) 1.8 (0.47) 1.7 (0.45) 1.1 (0.3)

Engine Features

• One-side serviceability of fuel system, lubrication system,
seawater pump, and air cleaner
• Low oil pressure shutdown
• High engine temperature shutdown
• Loss of coolant shutdown
• Seawater pump impeller failure shutdown
• Focused vibromounts
• Belt guard
• Disposable oil filter
• Oil drain valve and hose
• Full flow cooling system (thermostat bypass)
• Air intake heater circuit for cold starting (optional)

Generator Features

• Brushless, rotating field design permits power to be obtained from stationary leads.
• Rotor and stator are vacuum impregnated and coated with high-bond epoxy varnish. Varnish helps prevent corrosion in high-humidity areas.
• Rotors are dynamically balanced to minimize vibration.
• Copper windings ensure minimal heat buildup. Insulation meets NEMA standards for class H insulation.
• Direct connected to the engine, the generator has sealed precision ball bearings with a precision-machined steel sleeve in the end bracket to prevent shaft misalignment and extend bearing life.
• Mounted on a drip-proof tray.
• Equipped with a four-lead reconnectable stator.

Generator Features

• Brushless, rotating field design permits power to be obtained from stationary leads.
• Rotor and stator are vacuum impregnated and coated with high-bond epoxy varnish. Varnish helps prevent corrosion in high-humidity areas.
• Rotors are dynamically balanced to minimize vibration.
• Copper windings ensure minimal heat buildup. Insulation meets NEMA standards for class H insulation.
• Direct connected to the engine, the generator has sealed precision ball bearings with a precision-machined steel sleeve in the end bracket to prevent shaft misalignment and extend bearing life.
• Mounted on a drip-proof tray.
• Equipped with a four-lead reconnectable stator.

Weights and dimensions

With Sound shield 310 Kg

Dimensions (mm) LxWxH 934 x 578 x 664

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