Study on Location Accuracy of Partial Discharge Locator

2019 ◽  
Author(s):  
Katsuya Yamashita ◽  
Takuma Miyake ◽  
Tatsuya Sakoda ◽  
Wataru Kawano
Keyword(s):  
Partial Discharge ◽  
Location Accuracy

scholarly journals Partial Discharge Pulse Segmentation Approach of Converter Transformers Based on Higher Order Cumulant

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 415
Author(s):  
Dingqian Yang ◽  
Weining Zhang ◽  
Guanghu Xu ◽  
Tiangeng Li ◽  
Jiexin Shen ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Pulse Signal ◽  
Original Data ◽  
High Order ◽  
Segmentation Method ◽  
Data Simulation ◽  
Pulse Interference ◽  
Location Accuracy ◽  
Discharge Pulse ◽  
Segmentation Approach

As one of the most effective methods to detect the partial discharge (PD) of transformers, high frequency PD detection has been widely used. However, this method also has a bottleneck problem; the biggest problem is the mixed pulse interference under the fixed length sampling. Therefore, this paper focuses on the study of a new pulse segmentation technology, which can separate the partial discharge pulse from the sampling signal containing impulse noise so as to suppress the interference of pulse noise. Based on the characteristics of the high-order-cumulant variation at the rising edge of the pulse signal, a method for judging the starting and ending time of the pulse based on the high-order-cumulant is designed, which can accurately extract the partial discharge pulse from the original data. Simulation results show that the location accuracy of the proposed method can reach 94.67% without stationary noise. The field test shows that the extraction rate of the PD analog signal can reach 79% after applying the segmentation method, which has a great improvement compared with a very low location accuracy rate of 1.65% before using the proposed method.

Noise Discrimination Method for Partial Discharge Current Focused on Damped Oscillation Waveform

2018 ◽  
Vol 138 (2) ◽  
pp. 64-70
Author(s):  
Hirotaka Torii ◽  
Yuji Hayase ◽  
Keisuke Yamashiro ◽  
Satoshi Matsumoto
Keyword(s):  
Discharge Current ◽  
Partial Discharge ◽  
Damped Oscillation ◽  
Discrimination Method

Partial Discharge Activity of Inter-turn Insulation under Different Parameters of Square Wave Voltage

2009 ◽  
Vol 129 (12) ◽  
pp. 922-930 ◽  
Author(s):  
Kai Zhou ◽  
Guangning Wu ◽  
Xiaoxia Guo ◽  
Liren Zhou ◽  
Tao Zhang
Keyword(s):  
Partial Discharge ◽  
Square Wave ◽  
Discharge Activity ◽  
Turn Insulation

Comparison of Partial Discharge Resistance of Several Nanocomposites

2011 ◽  
Vol 131 (6) ◽  
pp. 414-420 ◽  
Author(s):  
Tomonori Iizuka ◽  
Toshikatsu Tanaka
Keyword(s):  
Partial Discharge

Influence of Space Charge Accumulation by Pre-stress on Partial Discharge Inception Voltage

2020 ◽  
Vol 140 (5) ◽  
pp. 276-284
Author(s):  
Maimi Mima ◽  
Tokihiro Narita ◽  
Hiroaki Miyake ◽  
Yasuhiro Tanaka ◽  
Masahiro Kozako ◽  
...  
Keyword(s):  
Space Charge ◽  
Partial Discharge ◽  
Charge Accumulation ◽  
Inception Voltage

DC Partial Discharge Characteristics of Polyphenylenesulfide / Calcium Carbonate Composite Insulating Material

2017 ◽  
Vol 137 (9) ◽  
pp. 536-541
Author(s):  
Tomohiro Kawashima ◽  
Tomohiro Yamada ◽  
Yoshinobu Murakami ◽  
Masayuki Nagao ◽  
Sou Ozaki ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Partial Discharge ◽  
Discharge Characteristics ◽  
Insulating Material

Basic Study on Partial Discharge Location for Cross-bonding Cables

2014 ◽  
Vol 134 (6) ◽  
pp. 428-429
Author(s):  
Junichi Kitajima ◽  
Tatsuya Sakoda ◽  
Kiyonori Watanabe
Keyword(s):  
Partial Discharge ◽  
Basic Study ◽  
Discharge Location

Investigation of Partial Discharge Characteristics Induced by X-ray Irradiation in Artificial Cavity in Epoxy Resin

2012 ◽  
Vol 132 (4) ◽  
pp. 284-290 ◽  
Author(s):  
Masakazu Higashiyama ◽  
Hajime Takada ◽  
Masayuki Hayashi ◽  
Masahiro Kozako ◽  
Masayuki Hikita ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Partial Discharge ◽  
Discharge Characteristics ◽  
X Ray ◽  
Artificial Cavity

Development of the Partial Discharge Inception Calculation Model in a Non-uniform Air Gap Considering the Effect of Humidity

2011 ◽  
Vol 131 (12) ◽  
pp. 1017-1023 ◽  
Author(s):  
Norihito Yanagita ◽  
Tatsuro Kato ◽  
Toshiaki Rokunohe ◽  
Takeshi Iwata ◽  
Hiroki Kojima ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Calculation Model ◽  
Air Gap
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