Simplified Measurement Method for Partial Discharge Inception Voltage under Repetitive Impulses

2012 ◽  
Vol 132 (9) ◽  
pp. 811-812 ◽  
Author(s):  
Kazunori Kadowaki ◽  
Yujiro Takemura ◽  
Sakae Nishimoto
Keyword(s):  
Measurement Method ◽  
Partial Discharge ◽  
Inception Voltage

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

High Temperature Partial Discharge Inception Voltage under Repetitive Impulse Voltage Applied to Motorette Samples

2020 ◽  
Author(s):  
Yasutaka Nishigaki ◽  
Takakazu Matsuzoe ◽  
Sho Takenouchi ◽  
Masahiro Kozako ◽  
Masayuki Hikita ◽  
...  
Keyword(s):  
High Temperature ◽  
Partial Discharge ◽  
Impulse Voltage ◽  
Inception Voltage

Moisture effects on AC dielectric strength and partial discharge inception voltage in natural monoesters

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Emeric Tchamdjio Nkouetcha ◽  
Ghislain Mengata Mengounou ◽  
Adolphe Moukengue Imano
Keyword(s):  
Water Contamination ◽  
Partial Discharge ◽  
Palm Kernel ◽  
Dielectric Strength ◽  
Glycerol Solution ◽  
Humid Environment ◽  
Insulating Liquids ◽  
Moisture Effects ◽  
Dielectric Performance ◽  
Inception Voltage

Abstract It is essential to analyse the dielectric performance in a humid environment of insulating liquids of plant origin, considered as alternatives to mineral oil (MO) which is not environmentally friendly. This paper focuses on the effects of different moisture levels on the dielectric strength and partial discharge initiation voltage of two natural monoesters, based on castor oil (CO) and palm kernel oil (PKO), and MO. The different samples were moistened with a glycerol solution, then sealed and stored for 12 days to allow further diffusion of moisture into the samples. Dielectric strength was statistically evaluated from IEC 60156. Partial discharge inception voltage (PDIV) experiment was performed in conformity with a modified IEC 61294 purpose at ambient temperature. Based on the experimental observations, the moisture has different behavior on dielectric strength and PDIV of insulating oils. Monoesters have a better withstand to water contamination than MOs in power transformers.

Partial Discharge Inception Voltage of Enameled Cellular Wire under Impulse Voltage

2018 ◽  
Author(s):  
Kenta Maeda ◽  
Tomohiro Kubo ◽  
Tomoki Uchimura ◽  
Hikaru Mizoguchi ◽  
Masahiro Kozako ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Impulse Voltage ◽  
Inception Voltage
Sign in / Sign up

Export Citation Format

Share Document