INSTALLATION
8
November 2011 / W-BD3.5/W-BD5 BeltPower / EN
The following table give a recommendation for cables that
are rated accordingly:
Model
Maximum single phase output
current
W-BD 3.5
16 Amps 3x 2.5mm
2
max 100 m
W-BD 5
25 Amps 3x4 mm
2
max 100 m
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
inverter itself cannot be equipped with such equipment for
every possible variation.
The vehicle’s/boat’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.
5
FUSE
An output fuse (between the inverter set and the electrical
installation) should be installed to protect the installed
electrical system. The following maximum single phase
output current applies:
Model
Maximum single phase
output current
W-BD 3.5
16 Amps
W-BD 5
25 Amps
The fuses must be of the slow reacting type. For electrical
motors connected to the system, a motor protection switch
could be installed
6
GROUNDING
The AC output generator windings are NOT grounded. The
housing of the generator, inverter and all other metal parts
are grounded.
There is a connection between the housing of the generator
and the housing of the inverter to be made by the yellow
green wires that is connected to in inner copper sheet of the
shielded cable inverter. Also, the 230 v output cable should
have a yellow/green wire for grounding. The L1 and -0- of
the 230V AC output wiring are
NOT
grounded.
To make a connection between “neutral” and “ground” of
the AC 230V output could be necessary as part of a specific
insulation failure protection system. This should only be
done by experts when installing such an insulation failure
system, earth leakage system or RCCB.
It is possible that the electric installation in the vehicle must
be protected against insulation failures. Methods of
protection are subjected to rules that can be different
depending on the use of the vehicle and local standards.
Experts in this field should be consulted
The same is true for boats. Pleasure craft smaller than 24
m in Europe is subjected to the CE recreational craft
directive that refers to ISO 10133 (DC) and ISO 13297 (AC).
7
TRANSFER SWITCH
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. This switch must ensure that all AC consumers can
be switched off at once. This switch should also be installed
to keep the inverter set and shore (grid) power systems
separate.
Transfer switches - to switch over from a land line to vehicle
or from generating set to the inverter - should be well
designed to switch over all wires including neutral (and not
only phases or line) and there should be provisions with the
aid of timers to prevent relays from clattering.
A manual double pole transfer switch with a -0 - position in
the middle is the most simple, reliable and low-cost solution.
Figure 11
Figure 10: inverter connections
Figure 7
