TY - GEN
T1 - Fabrication and PD-initiated Breakdown of Simulated Mica Tape Insulation Containing Epoxy Nanocomposites
AU - Iizuka, Tomonori
AU - Liu, Xuping
AU - Mai, Jun
AU - Tatsumi, Kohei
AU - Tanaka, Toshikatsu
AU - Mabuchi, Takahiro
AU - Yin, Xiaohong
AU - Umemoto, Takahiro
AU - Muto, Hirotaka
N1 - Funding Information:
The authors are indebted to NEDO (Advanced Industrial Dielectrics Material partial financial support.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/18
Y1 - 2020/10/18
N2 - Mica epoxy insulation as used for generator stator windings is required to be improved as regards withstand electrical stress and heat dissipation. Replacement of epoxy resins by epoxy nanocomposites is a useful method to fulfil a purpose of such improvement. This paper is aimed to evaluate PD-initiated breakdown (BD) performances as one of the most crucial characteristics using simulated model specimens. Two constituent materials, i.e. mica tapes and resin layers were set as about 40 and 10 μm in thickness, respectively. EDX analysis shows that the model specimens include silica nanofillers properly dispersed in narrow nanocomposite regions and are suitable for PD initiated BD experiments. It was found that PD initiated BD lifetime was 2.8 times in nanocomposites than in neat epoxy under a rather high electric stress condition.
AB - Mica epoxy insulation as used for generator stator windings is required to be improved as regards withstand electrical stress and heat dissipation. Replacement of epoxy resins by epoxy nanocomposites is a useful method to fulfil a purpose of such improvement. This paper is aimed to evaluate PD-initiated breakdown (BD) performances as one of the most crucial characteristics using simulated model specimens. Two constituent materials, i.e. mica tapes and resin layers were set as about 40 and 10 μm in thickness, respectively. EDX analysis shows that the model specimens include silica nanofillers properly dispersed in narrow nanocomposite regions and are suitable for PD initiated BD experiments. It was found that PD initiated BD lifetime was 2.8 times in nanocomposites than in neat epoxy under a rather high electric stress condition.
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U2 - 10.1109/CEIDP49254.2020.9437432
DO - 10.1109/CEIDP49254.2020.9437432
M3 - Conference contribution
AN - SCOPUS:85099315320
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 334
EP - 337
BT - CEIDP 2020 - 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2020
Y2 - 18 October 2020 through 30 October 2020
ER -