Whisper Power W-SQ-Pro User Manual page 6

INTRODUCTION
Fig. 1: Identification plate.
1 The identity of the generating set is given by the
SERIAL NUMBER.
When this number is available the manufacturer can
trace the specifications of the generating set. On the
identification plate are also some basic features of the
set:
2 POWER
The identification plate gives the nominal maximum
380
continues load in kVA (= kW) calculated with power
factor one. When calculating a load one should always
take into account the power factor or cos phi of this
load. The power should never exceed the nominal
power as shown on the identification plate. Power is
rated at an ambient temperature of 25ºC. For higher
6
temperatures the generating set has to be derated. To
drive the radiator fan (230 V or 230/400 V fan) output
could be taken from power generated by the genset. In
that case net power will be less than specified on the
identification plate
3 VOLTAGE shows the nominal voltage.
This voltage should be within the specified tolerance at
the nominal frequency and a balanced load. The W-
SQ-Pro 15/10.8 Three Phase can be connected as 3-
phase 230/400 Volt (STAR) or as 3-phase 230 Volt
(DELTA). The alternator is not designed and rated for
single phase applications.
applications Whisper Power offers another model that
has dedicated windings. The nameplate indicates the
connection as made in the factory; BE AWARE THAT
THE CONNECTIONS COULD BE RECONNECTED
BY FORMER USERS.
4 FREQUENCY is shown in Hz and is determined by the
speed of the engine (RPM). 50 Hz correlates with 1500
rpm. Whisper Power offers generators for 1800 rpm 60
Hz applications as well. When necessary a W-SQ-Pro
15/10.8 Three Phase model can be reconnected and
set for 60 Hz applications. A 60 Hz special manual is
available upon request.
5 CURRENT shows the maximum current that is
acceptable at the specified frequency, voltage and
power factor. The indicated current is the current
between two phases that can be taken off three times.
6 WEIGHT shows the net dry weight (approximately) in
kg. This is without fuel, oil, cooling liquid, packing and
external installation equipment
7 CE-marking: the "CE" symbol shows that the
generating set is build according to European
Community safety regulations. This includes the
regulations regarding the safety of pleasure craft,
safety of machinery, electric safety and electric
magnetic compatibility (EMC) and other relevant
directives.
Safety also relies on the installation, application and
circumstances. See also the remarks in this manual under
SAFETY. Before changing a factory setting you are advised
to consult the manufacturer. When the generating set you
have to identify is not new you have to take into account the
possibility that former users may have changed the settings.
Check the settings (voltage, frequency, rpm) when there is
any doubt.
February 2020 / W-SQ-Pro 15/10.8 / W-SQ-Pro 18/15,5
For single phase