Alternator Cooling; Technical Data - Whisper Power W-SC3 User Manual

INFORMATION
Figure 6: Pressure valve in the return line to prevent the
engine to overflow as a result of siphoning
When it is not possible to drain the oil from the radiator
every time the oil is changed, one should pump out the
engine oil as good as possible from the engine sump and
increase the oil change intervals to every 50 running
hours.

2.5.14 Technical data

GENERAL
Model
RPM
Alternator
Engine
Number of cylinders
Displacement
Bore X stroke
Combustion air consumption
Continuous power engine
Cooling system
Cooling water pump
Fuel lift pump engine
Starting battery (optional)
Fuel consumption
Control
ELECTRICAL SPECIFICATIONS
Output voltage
Output rating
Voltage tolerance
Frequency tolerance
Alternator
12
W-SC3
valve
W-SC3 mobile
3000
water cooled, synchronous
Kubota diesel, model OC60 (Japan)
1
276 cm3
72x68 mm
0,38 m3/min. at nominal RPM
2,5 kW
Oil cooling by radiator
PTO driven Whisper Power self priming impeller pump, type K
electric pump (12 V DC), additional pump available upon request
55-90 Ah
0.7-1.4 litre/hour, load dependent
Digital Diesel Control including automatic start/stop
230V 50 Hz alternating current (AC) single phase
3,6 KVA cos phi = 0,8; 3 KVA = 3 kW cos phi = 1
± 5%
± 5%
brushless, two pole, synchronous

2.5.13 Alternator cooling

The alternator is cooled by cooling liquid. The capacity of
the system depends on the capacity of the radiator piping
and other parts of the cooling system. We recommend not
using water but cooling liquid that is marketed for the use
,
in combustion engines. Cooling liquid protects the system
against frost until minus 25° C. Also it protects the system
against corrosion. Filling of the alternator cooling system
has to be done via the expansion tank. When the system
is on temperature the liquid will expand and the redundant
liquid will be pressed into the expansion tank. This tank
has to be filled up till the mark. On the tank is an overflow
connection. This should be open. A hose can be
connected to drain the overflow to outside the vehicle.
When cooling liquid is not available clean fresh water
could be used with an additive of anti freeze. When using
water with anti freeze the right mixture has to be
calculated according to the information of the supplier of
the anti freeze. The cooling system is not pressurised.
January 2011 / W-SC3 Mobile / EN