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Recently, non-contact radio-frequency (RF) methods have shown promising potential to be used as a complement to the IEC 60270 standard method for the detection and localization of partial discharge (PD) in high voltage insulation. This paper reports the results of an experimental investigation on the characteristic of partial discharge in an air gap using the (RF) method combined with the high-frequency...
Partial Discharge (PD) measurement is well known as powerful method to identify the condition of high-voltage insulation. This paper investigates the properties of the ultra-high frequency (UHF) electromagnetic (EM) wave emanating from the air discharge (corona) under high voltage DC source. By applying both positive and negative high voltage DC ranging up to 135 kV, a rod antenna and a horn antenna...
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