Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging

Yanhui Wei; Mingxiao Zhu; Xiaoyu You; Junbo Deng; Haibao Mu; Guanjun Zhang

doi:10.1109/ICPADM.2015.7295297

Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging

Yanhui Wei
, Mingxiao Zhu
, Xiaoyu You
, Junbo Deng
, Haibao Mu
, Guanjun Zhang

School of Electrical Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

The degradation of oil-paper caused by thermal aging seriously affects the lifetime of power equipment such as transformers. In order to investigate the relationship between partial discharge (PD) and degradation of oil-paper insulation, PD characteristics and trap parameters of the paper are measured. In this work, we fabricate oil-paper model with cavity discharge, and the adopted oil-immersed paper specimens with different degree of polymerization (DP) are achieved by thermally accelerated aging to simulate transformers with different operation time. For each sample, the phase resolved partial discharge (PRPD) spectrogram is recorded. The trap parameters such as density and energy of different aged paper specimen are obtained by thermally stimulated depolarization current (TSDC) method. Furthermore, the microstructure of each paper specimen is observed by scanning electron microscope (SEM). Experimental results show two levels of trap existing on the surface of oil-paper: shallow (0.10-0.59 eV) and relatively deep (0.60-0.90 eV) energy level. Further analysis illustrates that thermally aging makes the trap energy deeper. It is considered that the change of PD and trap characteristics is of great significance for insulation condition assessment, and the trap parameter is promising to be new characteristic for aged paper insulation.

Original language	English
Title of host publication	ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	416-419
Number of pages	4
ISBN (Electronic)	9781479989034
DOIs	https://doi.org/10.1109/ICPADM.2015.7295297
State	Published - 8 Oct 2015
Event	11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015 - Sydney, Australia Duration: 19 Jul 2015 → 22 Jul 2015

Publication series

Name	Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
Volume	2015-October

Conference

Conference	11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015
Country/Territory	Australia
City	Sydney
Period	19/07/15 → 22/07/15

Keywords

Oil-paper
Partial discharge
Thermal aging
Trap parameter

Access to Document

10.1109/ICPADM.2015.7295297

Cite this

Wei, Y., Zhu, M., You, X., Deng, J., Mu, H., & Zhang, G. (2015). Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging. In ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (pp. 416-419). Article 7295297 (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials; Vol. 2015-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICPADM.2015.7295297

Wei, Yanhui ; Zhu, Mingxiao ; You, Xiaoyu et al. / Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging. ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 416-419 (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials).

@inproceedings{6b72c5a02cd84803a24e80438073b4e9,

title = "Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging",

abstract = "The degradation of oil-paper caused by thermal aging seriously affects the lifetime of power equipment such as transformers. In order to investigate the relationship between partial discharge (PD) and degradation of oil-paper insulation, PD characteristics and trap parameters of the paper are measured. In this work, we fabricate oil-paper model with cavity discharge, and the adopted oil-immersed paper specimens with different degree of polymerization (DP) are achieved by thermally accelerated aging to simulate transformers with different operation time. For each sample, the phase resolved partial discharge (PRPD) spectrogram is recorded. The trap parameters such as density and energy of different aged paper specimen are obtained by thermally stimulated depolarization current (TSDC) method. Furthermore, the microstructure of each paper specimen is observed by scanning electron microscope (SEM). Experimental results show two levels of trap existing on the surface of oil-paper: shallow (0.10-0.59 eV) and relatively deep (0.60-0.90 eV) energy level. Further analysis illustrates that thermally aging makes the trap energy deeper. It is considered that the change of PD and trap characteristics is of great significance for insulation condition assessment, and the trap parameter is promising to be new characteristic for aged paper insulation.",

keywords = "Oil-paper, Partial discharge, Thermal aging, Trap parameter",

author = "Yanhui Wei and Mingxiao Zhu and Xiaoyu You and Junbo Deng and Haibao Mu and Guanjun Zhang",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015 ; Conference date: 19-07-2015 Through 22-07-2015",

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Wei, Y, Zhu, M, You, X, Deng, J, Mu, H & Zhang, G 2015, Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging. in ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials., 7295297, Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials, vol. 2015-October, Institute of Electrical and Electronics Engineers Inc., pp. 416-419, 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, Sydney, Australia, 19/07/15. https://doi.org/10.1109/ICPADM.2015.7295297

Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging. / Wei, Yanhui; Zhu, Mingxiao; You, Xiaoyu et al.
ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. Institute of Electrical and Electronics Engineers Inc., 2015. p. 416-419 7295297 (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials; Vol. 2015-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging

AU - Wei, Yanhui

AU - Zhu, Mingxiao

AU - You, Xiaoyu

AU - Deng, Junbo

AU - Mu, Haibao

AU - Zhang, Guanjun

PY - 2015/10/8

Y1 - 2015/10/8

N2 - The degradation of oil-paper caused by thermal aging seriously affects the lifetime of power equipment such as transformers. In order to investigate the relationship between partial discharge (PD) and degradation of oil-paper insulation, PD characteristics and trap parameters of the paper are measured. In this work, we fabricate oil-paper model with cavity discharge, and the adopted oil-immersed paper specimens with different degree of polymerization (DP) are achieved by thermally accelerated aging to simulate transformers with different operation time. For each sample, the phase resolved partial discharge (PRPD) spectrogram is recorded. The trap parameters such as density and energy of different aged paper specimen are obtained by thermally stimulated depolarization current (TSDC) method. Furthermore, the microstructure of each paper specimen is observed by scanning electron microscope (SEM). Experimental results show two levels of trap existing on the surface of oil-paper: shallow (0.10-0.59 eV) and relatively deep (0.60-0.90 eV) energy level. Further analysis illustrates that thermally aging makes the trap energy deeper. It is considered that the change of PD and trap characteristics is of great significance for insulation condition assessment, and the trap parameter is promising to be new characteristic for aged paper insulation.

AB - The degradation of oil-paper caused by thermal aging seriously affects the lifetime of power equipment such as transformers. In order to investigate the relationship between partial discharge (PD) and degradation of oil-paper insulation, PD characteristics and trap parameters of the paper are measured. In this work, we fabricate oil-paper model with cavity discharge, and the adopted oil-immersed paper specimens with different degree of polymerization (DP) are achieved by thermally accelerated aging to simulate transformers with different operation time. For each sample, the phase resolved partial discharge (PRPD) spectrogram is recorded. The trap parameters such as density and energy of different aged paper specimen are obtained by thermally stimulated depolarization current (TSDC) method. Furthermore, the microstructure of each paper specimen is observed by scanning electron microscope (SEM). Experimental results show two levels of trap existing on the surface of oil-paper: shallow (0.10-0.59 eV) and relatively deep (0.60-0.90 eV) energy level. Further analysis illustrates that thermally aging makes the trap energy deeper. It is considered that the change of PD and trap characteristics is of great significance for insulation condition assessment, and the trap parameter is promising to be new characteristic for aged paper insulation.

KW - Oil-paper

KW - Partial discharge

KW - Thermal aging

KW - Trap parameter

UR - https://www.scopus.com/pages/publications/84962619775

U2 - 10.1109/ICPADM.2015.7295297

DO - 10.1109/ICPADM.2015.7295297

M3 - 会议稿件

AN - SCOPUS:84962619775

T3 - Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials

SP - 416

EP - 419

BT - ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015

Y2 - 19 July 2015 through 22 July 2015

ER -

Wei Y, Zhu M, You X, Deng J, Mu H, Zhang G. Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging. In ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. Institute of Electrical and Electronics Engineers Inc. 2015. p. 416-419. 7295297. (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials). doi: 10.1109/ICPADM.2015.7295297

Partial discharge characteristics and trap parameters analysis of oil-paper after thermal aging

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