Fagor DDS APS-24, Hardware Manual

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Load duty cycles
Load cycle S1
Continuous duty. Operation with constant load and long enough to achieve
thermal balance.
Load cycle S3-5%
Periodic intermittent duty. Succession of identical duty cycles each having a
period at constant maximum load and a period at constant rated load. In this
duty cycle, the overheating effect of the start-up current is negligible. The 5
% running factor means that for a 10 s cycle, it works at constant current I
S3-
5%
(2xI
N
) for 0.5 s and at rated current (I
N
) for 9.5 s.
Load cycle S6-40%
Periodic uninterrupted duty cycle with intermittent load. Succession of
identical duty cycles, each with a running period under constant load and
another period without load. There is no rest period. The 40 % running factor
indicates that for a 10 minute cycle, it works at constant current I
S6-40%
for
4 minutes and without load for 6 minutes (with magnetizing current = 0.7 x
rated current I
N )
.
F. H3/84
Load cycle S1.
F. H3/85
Load cycle S3-5%.
F. H3/86
Load cycle S6-40%.