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Trap characterization in composite of solid-liquid using dual-level trap model and TSDC method

Trap characterization in composite of solid-liquid using dual-level trap model and TSDC method
Trap characterization in composite of solid-liquid using dual-level trap model and TSDC method
Charge trap is considered to be one of the effective characteristic parameters for qualitatively evaluating the aging status of insulating material. In this paper, the trap characteristics in oil-impregnated paper with different aging types (non-treatment, thermal treatment and electrical treatment) are investigated using a dual-level (shallow and deep energy) trap model based on space charge profiles and thermally stimulated depolarization current (TSDC) data. The simulated results based on the model are well consistent with the experimental results. On
the other hand, the TSDC method can acquire much information related to the shallower traps, and the dual–level trap model can obtain much charge dynamics
characteristics. It has been observed that thermally aging makes the shallow trap energy become deeper while electrically aging makes it shallower. Moreover, the
trap density in oil-impregnated paper increases after aging regardless of thermal or electrical aging.
2158-3226
1-8
Wei, Yanhui
97c4d288-f13b-4b8d-beb2-d9b256fdb48b
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zhang, Guanqun
000b7313-be76-4957-b23c-87d2ee38ddc2
Liu, Ning
f7db88b0-49eb-4cc4-9d98-c73be7da1784
Li, Guochang
7a26eb97-9f95-4264-86f6-c38555375df4
Wei, Yanhui
97c4d288-f13b-4b8d-beb2-d9b256fdb48b
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zhang, Guanqun
000b7313-be76-4957-b23c-87d2ee38ddc2
Liu, Ning
f7db88b0-49eb-4cc4-9d98-c73be7da1784
Li, Guochang
7a26eb97-9f95-4264-86f6-c38555375df4

Wei, Yanhui, Chen, George, Zhang, Guanqun, Liu, Ning and Li, Guochang (2016) Trap characterization in composite of solid-liquid using dual-level trap model and TSDC method. AIP Advances, 6 (75120), 1-8. (doi:10.1063/1.4960214).

Record type: Article

Abstract

Charge trap is considered to be one of the effective characteristic parameters for qualitatively evaluating the aging status of insulating material. In this paper, the trap characteristics in oil-impregnated paper with different aging types (non-treatment, thermal treatment and electrical treatment) are investigated using a dual-level (shallow and deep energy) trap model based on space charge profiles and thermally stimulated depolarization current (TSDC) data. The simulated results based on the model are well consistent with the experimental results. On
the other hand, the TSDC method can acquire much information related to the shallower traps, and the dual–level trap model can obtain much charge dynamics
characteristics. It has been observed that thermally aging makes the shallow trap energy become deeper while electrically aging makes it shallower. Moreover, the
trap density in oil-impregnated paper increases after aging regardless of thermal or electrical aging.

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Accepted/In Press date: 18 July 2016
e-pub ahead of print date: 28 July 2016
Organisations: EEE

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Local EPrints ID: 402952
URI: http://eprints.soton.ac.uk/id/eprint/402952
ISSN: 2158-3226
PURE UUID: 78f7cdd7-5dcf-422a-9116-998812df9398

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Date deposited: 21 Nov 2016 09:13
Last modified: 06 Oct 2020 20:23

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