50
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:
The generator apparent power S
GEN
needed is calculated using the following rule of
thumb:
A smaller generator may be used when not welding at full power.
IMPORTANT! The generator apparent power S
GEN
must always be higher than the maxi-
mum apparent power S
1max
of the power source.
When using single-phase devices with a 3-phase generator, note that the specified gener-
ator apparent power is often only available as a whole across all three phases of the gen-
erator. If necessary, obtain further information on the single-phase power of the generator
from the generator manufacturer.
3-phase devices:
S
1max
= I
1max
x U
1
x √3
Single-phase devices:
S
1max
= I
1max
x U
1
See device rating plate or technical data for I
1max
and U
1
values
S
GEN
= S
1max
x 1.35
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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