INTRODUCTION
EN / W-BD3.5/W-BD5 BeltPower / October 2011
3
1 INTRODUCTION
1.1
GENERAL
This installation manual applies to the installation of the
Belt-Power belt driven generators, first launched in June
2010. This manual is valid for the following models:
Part number Description
41301000
W-BD 3.5, 230V 50 Hz
41302000
W-BD 5, 230V 50 Hz
For other models and products see our website:
www.whisperpower.eu.
FIRST READ THE SAFETY CHAPTER IN THE USERS
MANUAL!
WARNING
A warning symbol draws attention to special
warnings, instructions or procedures which, if
not strictly observed, may result in damage or
destruction of equipment, severe personal
injury or loss of life.
DANGER
This danger symbol refers to electric danger
and draws attention to special warnings,
instructions or procedures which, if not strictly
observed, may result in electrical shock which
will result in severe personal injury or loss of
life.
WARNING
!
Before working (installation) on the system
read the section safety instructions in the
user’s manual
WARNING
!
Never connect the inverter output to a 230V
connection of the public grid.
When a connection to the public grid is
required, a “shore” or “land” power source
selector switch much be installed between the
inverter and the boat’s/vehicle’s electrical
system.
1.2
THE APPLICATION OF BELT DRIVEN
GENERATOR
1.2.1
Belt driven generators
A belt driven generator is a very good solution for vehicles
and small boats that require AC power and does not have
enough space for a diesel generator. As the inverter works
independently from a battery the installation is not as heavy
as a battery-based inverter system and also more efficient,
because a fully battery based inverter system has a battery
efficiency loss of at least 20% + a transformer loss of 10%.
Especially when high power is needed from 2 kW up to 5kW
the belt driven generator system is superior.
For some applications where power is needed while the
vehicle cannot run or when the engine runs at a too low
speed (RPM) a combination with a battery-based
inverter/charger (COMBI) system is recommended.
While the engine is not running (or running at too low speed)
the battery-based inverter can take care of power supply
and when the engine is running again the belt driven
generator can charge the batteries via the charger. As both
inverters can work in parallel, they can work together to
provide extra power for short periods or handle inrush
currents for motor starting (starting up air conditioners or
compressors).
1.2.2
How does it work
A special designed generator (generator) has to be
mounted on an available engine such as the main
automotive engine or propulsion engine in a boat.
This generator generates a high voltage between 200 Volt
and 340 Volt (on a very high frequency) that is converted to
a 230 Volt 50 Hz sine wave output by a special designed
inverter, independently of the rpm of the engine with a very
high efficiency of about 94%.
There are two benefits that makes this system superior to
systems that work on low DC voltage (12V or 24V). First
high voltage means low currents and little resistant losses
and thinner cables. Secondly the inverter does not need to
transfer a low battery voltage up to 230 Volt which saves a
transformer or step up module. All together the efficiency is
much higher and the installation much easier.
There are two hurtles to overcome to apply a belt driven
generator successfully. This manual will help to deal with
these issues:
•
One has to mount the generator in a proper way on the
engine.
•
One has to determine the RPM of the generator and
calculate the drive pulleys in a way that the rpm will
match the application.
