6. Auxiliary equipment
To operate, plasma torches need five auxiliary devices.
6.1 Generators
To stabilize the arc, whose voltage ( U ) – current (I) characteristic is generally decreasing (d U/dI < 0), and all the more so as the current is low, torches are supplied with direct current by a current source that keeps the current constant whatever the voltage and its variations. Two main types of source are used:
thyristor sources theoretically...
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Auxiliary equipment
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- (1) - FAUCHAIS (P.) - Plasmas thermiques : aspects fondamentaux. - . Base documentaire « Convertisseurs et machines électriques » (2005).
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