1b) Welding Current And Electrical Terms Flashcards
The amperage output provides heat that ranges from __ to ___ amps
25 to 500 amps
Voltage output produces the welding current that ranges ___ to ___ volts
18 to 36 volts
What is alternating current
Electrical current having alternating positive and negative values. Current flows in one direction for the first half then opposite direction for the second half
What is direct current
An electrical current that flows in one direction
What is electrical circuit
Path taken by an electric current in flowing through a conductor from one terminal of the source of supply to the other
What is amperage
The amount or rate of current that flows in a circuit
What is volt
The force that causes the current to flow in a circuit
What is static electricity
Electricity that is not moving
What is dynamic electricity
Electricity that is in motion in an electrical current
What is an open circuit voltage
Voltage produced when the machine is running and no welding is being done . 50v to 100v
What is arc voltage
Amount used when welding is in progress. 18v to 36v
Electrode holder connected to the negative pole of the welding machine and the work to the positive pole
Straight polarity
Electrode holder connected to the positive Pole of the welding machine and the work to the negative pole
Reverse polarity
Used for gas welding or tig. Welding voltages caused by changes in the arc lengthS
Constant current machine
Gas welding, maintains a constant value between the welding voltage and arc length.
Constant potential welding machine
