A non-contact directional sensor for partial discharge measurements

Sack, Kevin; Su, Chuqi

doi:10.1109/elinsl.2010.5549556

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…A similar time-domain approach employs the concept of signal propagation time, where the origin of the PD is defined by a travel–time analysis from either a single measurement point or using multiple sensors (Mardiana and Su, 2011; Mashikian et al, 1990; Sack and Su, 2010). However, this method is subject to the influence of reflections at each characteristic impedance change point within the circuit, which may lead to incorrect conclusions.…”

Section: Introductionmentioning

confidence: 99%

“…PD source site is further complicated when there are multiple PD sources at different points along the cable (Ishimaru and Kawada, 2011). Different approaches to this topic are being developed by analysing the arrival direction or using directional couplings (James et al, 2009; Sack and Su, 2010). The mere presence of PD activity is sufficient to remove the cable from service and testing offline, regardless of their magnitude.…”

Section: Introductionmentioning

confidence: 99%

“…Magnetic or high-frequency current transformer (HFCT) sensors that are placed on top of the shield are commonly used for PD detection. Using these sensors, PD activity is measured mainly at joints (Gong et al, 2014; Sack and Su, 2010).…”

Section: Introductionmentioning

confidence: 99%

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A simple approach of partial discharge source location in high voltage cables

Ramírez-Niño

Azcarraga

Pascacio

et al. 2017

Transactions of the Institute of Measurement and Control

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This article presents a new approach of partial discharges (PD) source location in power cables. The main advantage of this approach is the detection of the propagation direction of the PD. The method provides a pattern named by the authors PD+D, which, in contrast to the well–known phase-resolved partial discharge (PRPD) pattern, graphically shows the direction of PD propagation and uses the polarity of a sensor array on top of the magnitudes of the positive and negative parts of each PD pulse to detect the direction of propagation, is described in detail. The proposed technique is useful for the evaluation and diagnosis of power cables, since it can identify incipient faults. The attained results that demonstrate the value of this methodology and their scope and limitations are discussed.

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Section: Introductionmentioning

confidence: 99%