Table of Contents
Advertisement
INSTALLATION
2.5.4.2
Starter battery
For starting, the generator set requires a 12V starter battery of
at least 145Ah. The generating set can be connected with the
main engine battery or have its own battery.
We strongly recommend the use of a separate battery for the
generating set and to keep the wiring system for the vehicle
engine and the domestic DC supply system completely separate
and individually connected to separate batteries.
However, the negative of all the batteries on the vehicle should
be interconnected to avoid difference in the voltage level of the
earth on different places causing trouble to electronic devices
which might be in the system.
The above recommendation is not valid for vehicles having the
starter battery of the vehicle engine or other auxiliary
equipment positive grounded. When this is the case an expert
should be consulted.
A battery switch may be used to interrupt the positive
connection.
The starter battery is charged by the alternator on the engine.
An additional battery charger will help to keep the battery in
good condition when the generating set is not used.
A battery charger is not included in the standard supply. A high
efficiency battery charging unit can be ordered from
WhisperPower which is able to charge both the vehicle's main
battery and the starter battery. Also a small charger can be
used to charge the starter battery only, such as the WBC-
Handy 70. A battery switch and a charger are included in the
battery installation kit, art. no. 40290108.
2.5.4.3
Other recommendations and warnings
The battery should be secured for poor road conditions and the
terminals should be insulated. For extra safety the battery can
be enclosed in a wooden, plastic, fiberglas etc. (non metal) box.
Even when the earth return system is applied a negative
battery cable should be used and the vehicle should not to be
used as a conductor.
The battery cables are supplied in a standard length of 1.5 m, if
longer cables are required a larger cross sectional area should
be considered to compensate for voltage reduction.
When two batteries are used in series to provide a
24 Volt supply system, never take off 12 Volt
(starting) power from one of these batteries. This
will result in severe damage to both batteries
within a short time.
Disconnect the battery leads if electrical welding is to be carried
out, otherwise damage will be caused to the diodes of the
alternator.
14
As explosive hydrogen gases may be discharged
during charging, the battery should be located in a
well-ventilated room. Ensure that the supplied
battery cable connectors are properly fitted and
never remove during or shortly after charging as
sparking can occur, which may ignite the
hydrogen gasses.
2.5.5
AC power system (230 / 400 Volt)
2.5.5.1
General
The electric power supplied by the generator is of
a high voltage and dangerous to people. Before
working (installation) on the system read the
sections on safety in the user's manual.
Be aware that people are not used to have
230/400 Volt available on a vehicle. Put warning
signs on wall sockets and on junction boxes.
Instruct non-regular users of the vehicle. Warn
maintenance personal of garages that do service
on the vehicle.
Generators used on vehicles that are operated in
a hazardous environment often have to fulfill
special regulations and additional measures have
to be taken accordingly.
Be sure that all electrical installations (including all safety
systems) comply with all required regulations of the local
authorities. All electrical safety/shutdown and circuit breaking
systems have to be installed onboard as the generating set
itself cannot be equipped with such equipment for every
possible variation.
The vehicle's power supply system should be suitable and safe
for the AC voltage which is applied and the power that will be
generated. Special attention has to be paid on dividing the
system in branches which are fused individually.
It is absolutely essential that each and every circuit in the
electrical system is properly installed by a qualified electrician.
With the W-SQ 27 kVA / 25 kW connected as a three phase
230/400 Volt generator (star configuration), 3x 400 Volt is
available between the phases. At the same time 230 Volt is
available between every phase and neutral, the maximum
output being 15 kW for a single phase.
In general, the installation should be laid out in such a way that
there is a reasonable balance of load between the three
phases. To avoid problems with unbalanced loads one could
apply a 400V 3 phase to 230V single phase transformer.
W-SQ 27 kVA / 25 kW — October 2014 — EN
Advertisement
Table of Contents
