INARC-1000 I/ 1250 I
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Principle & Technical data
INARC-1000 I series Block diagram of principle
Figure 1: Block diagram of principle
This series welding machines apply IGBT soft switch inverter technology. 3- Phase input are
rectified by rectifier, inverted into HF AC, reduced by HF transformer, rectified and filtered by
HF rectifier, then output DC power suitable for welding. After this process, the welder’s
dynamical responsive speed has been greatly increased, so the welder size and weight are
reduced noticeably result in energy saving.
Power source enjoy sound anti-fluctuating ability and high-quality performance during external
context changes (As to fluctuation in input power supply and extended welding cables). Easy
to arc start, stable arc length, pretty weld formation and capability of continuous regulation the
welding current and arc-force current.
Figure 2: Volt-Ampere curve
3 phase
Rectifier
HF
Inverter
HF
Transforme
Rectifier
& Filter
Control circuit
HF Arc-starting
Device
90–
20 –
0
U=20+0.04I
I(A)
Imin
Imax
