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OM-2254 Page 14
3-4. Symbols And Definitions
A
Amperage Panel
Alternating
Current (AC)
V
Voltage
Output Circuit Breaker Remote On
Off
Gas Tungsten Arc
Welding
Negative Voltage Input
Direct Current
(DC)
Positive Inductance
Protective Earth
(Ground)
Constant Current Constant Voltage Foot Control Line Connection
Arc Force
Shielded Metal Arc
Welding (SMAW)
Gas Metal Arc
Welding (GMAW)
Three Phase Static
Frequency Con-
verter-
Transformer-
Rectifier
U
0
Rated No Load
Voltage (Average) U
1
Primary Voltage
U
2
Conventional
Load Voltage
X
Duty Cycle
Hz
Hertz
IP
Degree Of
Protection
I
2
Rated Welding
Current
%
Percent
Pulsed
Lift-Arc Trigger
Hold Operation
(GTAW)
Single Phase Three Phase
I
1max
Rated Maximum
Supply Current
I
1eff
Maximum Effective
Supply Current
Increase
Lift-Arc Operation
(GTAW)
Scratch Start TIG
Voltage Sensing
Feeder