Partial discharge Partial discharge In electrical engineering, partial discharge (PD) is a localized dielectric breakdown (DB) of a small portion of a solid or fluid electrical insulation (EI) system under high voltage (HV) stress, which does not bridge the space between two conductors. While a corona discharge (CD) is usually revealed by a relatively steady glow or brush discharge (BD) in air, partial discharges within solid insulation system are not visible. PD can occur in a gaseous, liquid or solid insulating medium. It often starts within gas voids, such as voids in solid epoxy insulation or bubbles in transformer oil. Protracted partial
Broken Crown Halo Broken Crown Halo Broken Crown Halo is the seventh studio album by Italian gothic metal band Lacuna Coil. It was released through Century Media Records on March 31, 2014 in Europe, Australia and New Zealand, and on April 1 in North America. This is the last album to feature drummer Cristiano "Criz" Mozzati and guitarists Marco "Maus" Biazzi and Cristiano "Pizza" Migliore, who retired from the band on Valentine's Day, February 14, 2014, marking the end of the band's longest-standing line-up. On February 8, 2014, a second track from the album titled "Die & Rise" was added to the Amazon