Variable factors in Arc Control

Variable factors

To investigate the influence of Ag/C contact
materials on the arc root motion from the contact
region, a piece of Ag/C is welded on the fixed and
the moving contact when the anode and cathode
power supply are set in the fixed and moving
contacts.
To inspect the influence of the short circuit current
level on the arc root commutation from the contact
region, three levels of the short circuit current are
expected: 500 A, 1400 A and 2000 A. The Capacitor
Discharge System (CDS) is charged up with
capacitor 47.4 mF, inductor 224 μH and resistance
30 mΩ [2].

Reference: 

Arc Control in Circuit Breakers: Low Contact Velocity