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2
STARTER BATTERY
For starting, the WhisperPower requires a battery with a
capacity of at least 120 Ah. 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
propulsion engine and the domestic DC supply system
completely
separate
and
separate batteries.
230VAC
IVO 12/10
A
B
+
-
12V
Fig. 18 Starter battery
However, the negative of all the batteries on the vessel
should be interconnected (when on earth) 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 ships having
the starter battery of the propulsion 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 ship's main battery and the starter battery. Also a small
charger can be used to charge the starter battery only,
such as the IVO SMART 12/10. A battery switch and a
charger are included in the battery installation kit, art. no.
50230226
EN / M-SQ25 / Oktober 2010
individually
connected
to
3
OTHER RECOMMENDATIONS AND WARNINGS
The battery should be secured for seagoing 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
vessel 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
the 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.
As explosive hydrogen gases are 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.
INSTALLATION
15
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