Multiple Partial Discharge Source Localization in Power Cables Through Power Spectral Separation and Time-Domain Reflectometry

2019 ◽  
Vol 68 (12) ◽  
pp. 4703-4711 ◽  
Author(s):  
Guillermo Robles ◽  
Muhammad Shafiq ◽  
Juan Manuel Martinez-Tarifa
Keyword(s):  
Source Localization ◽  
Time Domain ◽  
Partial Discharge ◽  
Time Domain Reflectometry ◽  
Power Cables ◽  
Discharge Source ◽  
Power Spectral ◽  
Spectral Separation

scholarly journals Research on Partial Discharge Source Localization Based on an Ultrasonic Array and a Step-by-Step Over-Complete Dictionary

Energies ◽  
2017 ◽  
Vol 10 (5) ◽  
pp. 593 ◽  
Author(s):  
Shuguo Gao ◽  
Ying Zhang ◽  
Qing Xie ◽  
Yuqiang Kan ◽  
Si Li ◽  
...  
Keyword(s):  
Source Localization ◽  
Partial Discharge ◽  
Discharge Source ◽  
Ultrasonic Array ◽  
Step Over

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

2017 ◽  
Vol 40 (12) ◽  
pp. 3507-3514
Author(s):  
Jose Ramírez-Niño ◽  
Carlos G Azcarraga ◽  
Alberth Pascacio ◽  
Rito Mijarez ◽  
Joaquin Rodríguez-Rodríguez
Keyword(s):  
Sensor Array ◽  
Partial Discharge ◽  
Source Location ◽  
Simple Approach ◽  
Propagation Direction ◽  
Partial Discharges ◽  
Power Cables ◽  
New Approach ◽  
Discharge Source ◽  
Incipient Faults

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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