Partial discharge (PD) occurs when insulation containing voids is subjected to high voltage
(HV). If left untreated, PD can degrade insulation until, eventually, catastrophic insulation
failure occurs. The detection of PD current pulses, however, can allow incipient insulation
faults to be identified, located, and repaired prior to plant failure. Traditionally, PD is detected
by using galvanic contact methods or capacitive/inductive coupling sensors. This article
discusses the use of software-defined radio (SDR) for PD detection and localization and …

Partial discharge (PD) occurs if a high voltage is applied to insulation that contains voids. PD
is one of the predominant factors to be controlled to ensure reliability and undisrupted
functions of power generators, motors, Gas Insulated Switchgear (GIS) and grid connected
power distribution equipment. PD can degrade insulation and if left untreated can cause
catastrophic insulation failure. However, PD pulse monitoring and detection can save cost
and life prior to plant failure. PD is detected using traditional methods such as galvanic …