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
A Word Child turns stirring, witty, painful and joyous, the novel was received to great critical acclaim on its release. A Word Child A Word Child is the 17th novel by Iris Murdoch. First published in 1975 by Chatto and Windus, "A Word Child" charts the trials and tribulations of the title character, the "word child", Hilary Burde as he attempts to recover his soul from the misery of his troubled past. Filled in the usual Murdoch style with an array of colourful, fully rounded characters who people Hilary's world, the novel is a complex and thoughtful exploration of the possibility and meaning