Simultaneous Evaluation of Conductive/Near-Field Noise Suppression in Co-Zr-Nb Film Using Magnetic Circuit

2017 ◽  
Vol 53 (11) ◽  
pp. 1-4 ◽  
Author(s):  
Sho Muroga ◽  
Yasushi Endo
Keyword(s):  
Noise Suppression ◽  
Magnetic Circuit ◽  
Near Field ◽  
Simultaneous Evaluation ◽  
Field Noise

Identifying Power Equipment Partial Discharge Signals via Pulse Appearance Frequency, Duration, and Pulse Polarity

2011 ◽  
Vol 354-355 ◽  
pp. 1228-1234 ◽  
Author(s):  
Ju Chu Hsieh ◽  
Yu Hsun Lin
Keyword(s):  
Pulse Duration ◽  
Laboratory Experiments ◽  
Noise Suppression ◽  
Partial Discharge ◽  
Power Equipment ◽  
Shape Features ◽  
Duration Time ◽  
Field Noise ◽  
Pulse Polarity ◽  
Appearance Frequency

At present, the contribution of partial discharge (PD) to power equipment insulation diagnosis is highly valued globally. However, most PD measurements are still performed in the laboratory, the main reason being that the effects of on-field noise suppression are still limited and unsatisfactory. To date, among noise suppression methods, wavelet de-noising is the most common. This study focuses on improving the effects of on-field noise suppression. The shape features (pulse equivalent bandwidth and pulse duration time) can be analyzed, and PD signals can consequently be discovered. This study applied the proposed method to on-field and laboratory experiments, and presents a discussion of the outcomes regarding the effects on noise suppression. This method can improve the effects of noise suppression.

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