Partial discharge measurements and pulsed resonant wave excitation

A transient technique, referred to as the pulsed resonant wave technique, for in situ testing of extruded polymeric cable is discussed. A small, cost-effective power supply is used for energizing large capacitance specimens. This power supply has many of the benefits of testing at power line frequencies and none of the drawbacks of the other current methods, which are discussed for comparison. A digital noise reduction technique that mitigates the effects of interference is also used.< >