scholarly journals Uncertainty Sources in the Estimation of the Partial Discharge Inception Voltage in Turn-to-Turn Insulation Systems

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 157510-157519
Author(s):  
Manuel Gomez La De Calle ◽  
Juan Manuel Martinez-Tarifa ◽  
Angel Manuel Gomez Solanilla ◽  
Guillermo Robles
Keyword(s):  
Partial Discharge ◽  
Uncertainty Sources ◽  
Insulation Systems ◽  
Turn Insulation ◽  
Inception Voltage

scholarly journals Comparative Tests of Partial Discharges in Nomex® 910 Paper and Cellulose Paper

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 647
Author(s):  
Hubert Moranda ◽  
Hanna Moscicka-Grzesiak ◽  
Piotr Przybylek ◽  
Krzysztof Walczak ◽  
Radoslaw Szewczyk
Keyword(s):  
Moisture Content ◽  
Partial Discharge ◽  
Mineral Oil ◽  
Partial Discharges ◽  
Comparative Tests ◽  
Cellulose Paper ◽  
Pure Cellulose ◽  
Insulation Systems ◽  
Four Levels ◽  
Inception Voltage

The article presents the results of comparative investigations of partial discharges in two insulation systems; aramid-enhanced cellulose paper-mineral oil, and pure cellulose paper-mineral oil. Partial discharges were investigated in a diagonal electric field with vertical and horizontal components. This field is treated as the most dangerous for insulation. The research was carried out on Nomex® 910 paper and cellulose paper samples, each paper being 0.25 mm thick. Samples of the two materials were tested at four levels of moisture. The inception voltage of partial discharges of all samples tested decreased as their moisture content increases. It was also proved that Nomex® 910 has a significantly higher partial discharge inception voltage than the cellulose paper, although this difference decreased with increasing moisture content.

Partial Discharge Inception Voltage in DC insulation systems: a comparison with AC voltage supply

2019 ◽  
Author(s):  
Paolo Seri ◽  
Leonardo Cirioni ◽  
Hadi Naderiallaf ◽  
Gian Carlo Montanari ◽  
Robert Hebner ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Voltage Supply ◽  
Insulation Systems ◽  
Inception Voltage

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

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
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