CIGWELD TRANSTIG 300 AC/DC, Service Manual, Page: 17 / 134

SERVICE MANUAL TRANSTIG 300 AC/DC
June 30, 2008 2-3
2.05 Description
The Cigweld Transtig 300 AC/DC is a self contained
three-phase AC/DC arc welding power source with
Constant Current (CC) output characteristics. This
unit is equipped with a Digital Volt/Amperage Meter,
gas control valve, built in Sloper and Pulser, lift arc
starter, and high-frequency arc starter for use with
Gas Tungsten Arc Welding (GTAW), Gas Tungsten Arc
Welding-Pulsed (GTAW-P) Gas Tungsten Arc Welding-
Sloped (GTAW-S), and Shielded Metal Arc Welding
(SMAW) processes. The power source is totally
enclosed in an impact resistant, flame retardant and
non-conductive plastic case.
300A 5A (A)
(V)
OCV
S TICK P r oce ss
Lift TIG P r oce ss
HF TIG P r oce ss
300A 25A
(A)
(V)
OCV
10V
300A (A)
(V)
OCV
5A
NOTE
Volt-Ampere curves show the maximum
Voltage and Amperage output capabilities
of the welding power source. Curves of
other settings will fall between the curves
shown.
Figure 2-1:
Transtig
300 AC/DC Volt-Ampere curve