Operating The Generator (Working Safely With Electrical Equipment) - Bottarini GDP21 Maintenance And Operating Manual

11. Generator option
11.4 Operating the generator
(Working safely with electrical
equipment)
This state-of-the-art synchronous
generator has been designed and built
with maximum safety in mind. It will help
you get the most out of your work or
leisure activities. However, like all
electrical equipment, it can represent a
source of danger (e.g. risk of electric
shock) if the operating instructions in this
section are not followed exactly. Please
observe the instructions and the notes on
dangers affixed to your generator.
Before starting the generator, all devices
must be unplugged and switched off. Only
plug the devices in (one after the other)
and switch them on after the engine
driving the generator has reached its
nominal operating speed.
Keep the glass cover over the circuit
breaker on the front panel closed at all
times. Tighten the knurled screws by hand
to maintain IP protection.
Do not open the generator or the
switchbox. The brushless synchronous
design does not require maintenance.
Do not modify the internal wiring.
Repairs to electrical components and to
electrical operating equipment (supply
cables, loads) may only be carried out by
suitably trained electricians.
The circuit breakers, control, alarm and
release devices and the insulation
monitors are specially designed for the
generator and its sockets. Only use
original spare parts if replacements are
needed.
The generator meets the requirements
of the Protective isolation with equi-
potential bonding conductor and insulation
monitoring with circuit breakers regulation
in IEC 60364-5-551 and the German Gas
Installation and Plumbing Association
(DVGW) regulation GW 308. The system
is an IT type, with neutral and PE
(equipotential bonding conductor).
The generator does not have to be
earthed (with a ground rod for example) to
ensure adequate safety protection.
However, if desired or required, defined
earthing of the generator can also be
provided.
Earthing of the neutral (N), or connecting
of the neutral to the equipotential bonding
conductor (PE), is prohibited on the
generator, the distribution system and all
other devices. The use of so-called
neutralised devices is not permitted, and
would lead to insulation monitoring being
enabled automatically.
The generator must not be used to inject
power into a construction site distribution
system.
To avoid unwanted interaction, do not
connect distribution systems with
additional insulation monitors to the
generator with its built-in equivalent.
During insulation and voltage tests
carried out on the generator by trained
electricians, disconnect the insulation
monitor.
Because the generator is not earthed,
fault current circuit breakers used in
distribution systems and equipment
cannot be relied upon to operate correctly
when such units are connected to the
generator, and, due to the Electrical
isolation with insulation monitoring and
circuit breaking protective measure, are
not actually required.
The insulation monitor and circuit
breaker should be checked daily when the
generator is in use, following the quick
reference instructions for Testing/
insulation monitoring/starting/connecting
equipment which are affixed to the
generator.
Attention
Devices connected the generator
which cause the circuit breaker to
release, and the red indicator lamp for
Insulation fault to light up, must not be
connected to other generators (without
insulation monitoring), or to the public
mains. Have equipment with insulation
faults immediately replaced or repaired
by the manufacturer or a suitable
electrical specialist.
When working in restricted conductive
areas, i.e. as defined in DIN/VDE 0100
706 (e.g. in boilers), only one power tool
or mobile measuring instrument may
be connected to the generator, or for
each such load an additional isolating
transformer, or one isolating transformer
with several secondary windings, should
be used. Handheld lights may only ever
be used in restricted conductive areas
when operated off a SELV (safe extra low
voltage) isolating transformer.
Many portable power tools conform to
German protection class II (i.e. they are
double insulated, symbol ■
■
devices should be used if possible. Use a
cable and plug to connect any protection
class I device (i.e. with metal housing
parts that are not double insulated) to be
used to the PE (equipotential bonding)
conductor.
Only connect devices and distribution
systems which are in good condition to the
generator. The insulation, and plug and
socket combinations, must be in good
condition to ensure user safety. Do not
use any damp or dirty connectors.
The distribution systems (e.g. extension
cables, device leads) must be carefully
chosen, laid and maintained. Check the
electrical cables regularly, replacing rather
than repairing any that are faulty.
To cope with the greater mechanical
strains and stresses on the generator's
distribution system, use rubber-sheathed
cables to the minimum standard of H07RN-
F or A07RN-F in accordance with DIN/VDE
0282 Part 810, or equivalent designs, as
moveable (extension) cables. Where the
cables may be under severe stress, lay
them in mechanical protection systems, or
with strong covers, or
use NSSHöü cables in accordance with
VDE 0250.
The lengths and conductor cross
sections of the extension cables must
match the type of equipment and the duty.
It is essential to ensure supply cables do
not exceed the maximum lengths
specified! When using extension cables or
moveable distribution systems, the sum of
the lengths of all extension cables
connected to a generator must not exceed
250 metres (for a copper conductor cross
section of 2.5 mm
total length of the extension cable, or the
moveable distribution system, connected
to any particular socket must not exceed
60 m for a copper conductor cross section
of 1.5 mm
2.5 mm 2
Note
For defined releasing of the circuit
breaker, a loop resistance of 1.5 Ω per
socket must not be exceeded.
The circuit breaker must not be used for
routine switching on of the 3-phase
generator. If several devices, particularly
those with different power consumption
levels, are connected to the AC sockets,
different voltage drops can arise, depend-
ing on the turn-on time of the neutral.
Avoid overloading the generator. In
particular, to ensure user safety and
optimum performance, it is essential to
observe the following rules:
1. Only devices whose voltage and fre-
quency data on the load identification
plate conform to those on the generator
). These identification plate may be connected.
2. Only devices whose power
consumption does not exceed the
output specified on the generator
identification plate may be used. The
total power consumption of all of the
loads connected to the generator must
not exceed its output.
2 - for all sockets). The
2 , or 100 metres for one of
.
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