Partial Discharge Simulation and Detection in 750V DC XLPE Cables

Soh, C. B.; Liew, Chin Kian; Cao, Shuyu; Tseng, King Jet; Low, Pearl M. Z.; Woo, Wai Lok

doi:10.23919/emctokyo.2019.8893657

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Consequently, the PD pulses of AC stresses have frequency components on the range of MHz to GHz [9,10]. Although DC PD pulse analysis has been a rare research topic, in recent years, researchers have increasingly reported their studies on individual PD waveforms under DC stresses [11][12][13][14][15][16]. Their findings show that DC PD pulses consist of double exponential functions and that their temporal characteristics are similar to those of AC PD pulses.…”

Section: Introductionmentioning

confidence: 99%

Design of Transmission Line and Electromagnetic Field Sensors for DC Partial Discharge Analysis

Rostaghi-Chalaki

Yousefpour

Donohoe

et al. 2020

IEEE Trans. Dielect. Electr. Insul.

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Accurate measurement circuit and high-frequency sensors with sufficient bandwidth are necessary for the analysis of individual partial discharge (PD) pulses. In this paper, a testbed is designed and constructed for the investigation of DC PD pulses. The testbed is equipped with a 50 Ω transmission line (TL) that terminate to an oscilloscope for measuring the charge displacement current generated by PD pulses. Besides the oscilloscope measurements, two types of electromagnetic field sensors (D-dot and B-dot) were developed to capture the EM fields of the PD pulses propagating through the TL. The main goal of this paper is to investigate the DC PD pulses through the EM fields and the corresponding discharge current pulses that are considered as calibrating signals for the developed D-dot and B-dot sensors. The results of DC cavity discharge measured by the constructed testbed and the EM field sensors demonstrate close agreement with the reference PD pulses measured via oscilloscope.

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