LAPSE:2018.0480
Published Article
LAPSE:2018.0480
Dual-Temperature Evaluation of a High-Temperature Insulation System for Liquid-Immersed Transformer
September 21, 2018
A high-temperature oil⁻paper insulation system offers an opportunity to improve the overloading capability of distribution transformers facing seasonal load variation. A high-temperature electrical insulation system (EIS) was chosen due to thermal calculation based on a typical loading curve on the China Southern Power Grid. In order to evaluate candidate high-temperature insulation systems, Nomex® T910 (aramid-enhanced cellulose) immersed in FR3 (natural ester) was investigated by a dual-temperature thermal aging test compared with a conventional insulation system, Kraft paper impregnated with mineral oil. Throughout the thermal aging test, mechanical, chemical, and dielectric parameters of both paper and insulating oil were investigated in each aging cycle. The thermal aging results determined that the thermal class of the FR3-T910 insulation system meets the request of overloading transformer needs.
Record ID
Keywords
dual-temperature, liquid-immersed transformer, natural ester, Nomex T910, thermal aging
Subject
Suggested Citation
Zhang X, Ren L, Yu H, Xu Y, Lei Q, Li X, Han B. Dual-Temperature Evaluation of a High-Temperature Insulation System for Liquid-Immersed Transformer. (2018). LAPSE:2018.0480
Author Affiliations
Zhang X: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Ren L: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Yu H: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Xu Y: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Lei Q: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Li X: Electric Power Research Institute of Guangdong Power Grid Corporation, No.6–8 Dongfeng East Road, Guangzhou 510062, China
Han B: Guangdong Zhongpeng Electricity Co., Ltd., No.19 Qianjin Road, Foshan 528000, China
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Ren L: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Yu H: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Xu Y: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Lei Q: State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China
Li X: Electric Power Research Institute of Guangdong Power Grid Corporation, No.6–8 Dongfeng East Road, Guangzhou 510062, China
Han B: Guangdong Zhongpeng Electricity Co., Ltd., No.19 Qianjin Road, Foshan 528000, China
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Journal Name
Energies
Volume
11
Issue
8
Article Number
E1957
Year
2018
Publication Date
2018-07-27
Published Version
ISSN
1996-1073
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Original Submission
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PII: en11081957, Publication Type: Journal Article
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LAPSE:2018.0480
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doi:10.3390/en11081957
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[v1] (Original Submission)
Sep 21, 2018
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Sep 21, 2018
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https://psecommunity.org/LAPSE:2018.0480
Original Submitter
Calvin Tsay
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