44
Generator-powered operation
Generator-pow-
ered operation
The power source is generator-compatible.
The maximum apparent power S
1max
of the power source must be known in order to select
the correct generator output.
The maximum apparent power S
1max
of the power source is calculated as follows:
S
1max
= I
1max
x U
1
See device rating plate or technical data for I
1max
and U
1
values
The generator apparent power S
GEN
needed is calculated using the following rule of
thumb:
S
GEN
= S
1max
x 1.35
A smaller generator may be used when not welding at full power.
When using single-phase devices with a three-phase generator, note that the specified
generator apparent power is often only available as a whole across all three phases of the
generator. If necessary, obtain further information on the single-phase power of the gener-
ator from the generator manufacturer.
NOTE! The generator apparent power S
GEN
must always be higher than the max-
imum apparent power S
1max
of the power source.
NOTE! The voltage delivered by the generator must never exceed the upper or
lower limits of the mains voltage tolerance range. Details of the mains voltage tol-
erance can be found in the "Technical data" section.
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