The Pxxx0MEL 5kA Series and Pxxx0FNL 3kA Series SIDACtor protection thyristors offer on-state voltage values that are much lower than the arc voltage
of a traditional gas discharge tube.
14 it is shown that, real-time measured arc voltage
shows similarity with the arc voltage
obtained by flicker effect by using simulation, and this model can be used to define the arc voltage
The input parameters in subsequent range of arc voltage
(12-20V), welding speed (60-100mm/min) and welding current (60-100 A).
Many researchers have concentrated on the influence of either the geometric parameters, such as the process distance and the laser beam focal position [5-7, 19], or the energy parameters, such as arc voltage
, arc current and laser power [8-10], an increase in the penetration depth [11, 12], the accuracy of the weld butt joint surface and improved misalignment tolerance , increased welding speed, porosity reduction and weld stability [13, 17].
To correct this problem, reduce the welding current, decrease the welding arc voltage
and adjust the electrode angle as needed.
In connection with this different methods of control, based on indirect parameters of technological processes, were suggested [1-9]: use of information about harmonic composition of current or arc voltage
[1-5], values of operation inductive resistance , change of constant component of the phase voltage [8, 9], etc.
ESAB's TrueArcVoltage system ensures that the correct arc voltage
is maintained regardless of the length of the cables used, and three inductance outlets make it easy for operators to optimise the settings for different applications.
The arc voltage
increases with the decrease of the current from the peak value and finally, the arc discharge extinguishes.
The arc gas is controlled by means of a mechanical compensation system to give a steady arc voltage
The Transmatic Lynx Arc has an arc voltage
range of 17 to 35Vdc and can be used on open circuits of 30 to 1 100V dc.
Also available are welding lathes, arc voltage
controls, magnetic arc controls, complete welding systems, and contract welding services.
By monitoring the arc voltage
of its plasma torch, a gantry-style shape-cutting machine holds the torch at a constant distance from the work and so cuts steel plate to fairly accurate dimensions.