Presented by Jerod Day, VP/Lead Applications Engineer at Vacuum Interrupters

Vacuum interrupters are among the most efficient and powerful overcurrent protection devices available for medium voltage (1000 volts to 38 kV) power distribution equipment. Common uses for vacuum interrupters include power distribution applications that require repetitive switching, motor inrush current interruption, fault protection, overcurrent, and short-circuit protection. This webinar will discuss how vacuum interrupters work, their failure modes, and the best methods for maintaining and testing vacuum interrupters. This includes discussions on magnetron atmospheric condition (MAC) test equipment used to test vacuum interrupters in the field by measuring their current response to portable magnetic fields.