Partial Discharge Measurements of Cryogenic Dielectric Materials in an HTS Transformer Using HFCT

A Novel Diagnosis Method for Void Defects in HVDC Mass-Impregnated PPLP Cable Based on Partial Discharge Measurement

“…Therefore, it can be analyzed using a phase-resolved partial discharge (PRPD) and a phaseresolved pulse sequence (PRPS), which are analyzed using the phase, magnitude, and frequency of the partial discharge pulse. AC partial discharge characteristics of each defect have been studied sufficiently, and are currently used for insulation diagnosis of Highvoltage alternating current (HVAC) cables [28][29][30][31][32]. In the case of DC partial discharge, since there is no phase information as there is with AC voltage, the same analysis method used for AC partial discharge cannot be used.…”

Prediction of salt contamination in the rotating blade of wind turbine under lightning strike occurrence using fuzzy c‐means and k‐means clustering approaches

“…The high-frequency current transformer (HFCT) was widely employed to detect partial discharge (PD) signals for assessing insulation conditions on a power cable; transformer and a threephase transmission line [10][11][12][13][14][15]. The lightning strike current is measured by clamping HFCT around the grounding line when the lightning strike surge experiment of each salt contaminated blade was conducted by turns.…”