Developing test methods for interfacial ageing in composite insulators

P. D. Bastidas; S. M. Rowland

doi:10.1109/CEIDP.2015.7352083

Developing test methods for interfacial ageing in composite insulators

P. D. Bastidas, S. M. Rowland

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

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Abstract

High voltage insulation systems consist of a combination of different insulating materials, exposed to multiple stresses during operation. Outdoor composite insulators used in transmission lines are typically made of two solid polymeric materials bonded together to form the insulator. Work reported here contributes to the evaluation of degradation within internal interfaces by developing tests to investigate interfacial tracking, with a view to replicating the tracking phenomena seen within composite insulators in service. The present paper highlights high voltage tests on dielectric interfaces with needle electrodes generating local high fields to initiate tracking. FEA has been used to design an experiment with controlled electric field magnitudes over a 1 m sample. Moreover, information from monitoring partial discharges and surface temperature is used to understand the inception and propagation of tracking activity within the structure.

Original language	English
Title of host publication	host publication
Publisher	IEEE
Pages	294-297
Number of pages	4
DOIs	https://doi.org/10.1109/CEIDP.2015.7352083
Publication status	Published - 2015
Event	Conference on Electrical Insulation and Dielectric Phenomena - Des Moines Duration: 1 Jan 1824 → …

Conference

Conference	Conference on Electrical Insulation and Dielectric Phenomena
City	Des Moines
Period	1/01/24 → …

Keywords

interface; interfacial; partial discharges; tracking; composite insulator; needle; FEA

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10.1109/CEIDP.2015.7352083

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title = "Developing test methods for interfacial ageing in composite insulators",

abstract = "High voltage insulation systems consist of a combination of different insulating materials, exposed to multiple stresses during operation. Outdoor composite insulators used in transmission lines are typically made of two solid polymeric materials bonded together to form the insulator. Work reported here contributes to the evaluation of degradation within internal interfaces by developing tests to investigate interfacial tracking, with a view to replicating the tracking phenomena seen within composite insulators in service. The present paper highlights high voltage tests on dielectric interfaces with needle electrodes generating local high fields to initiate tracking. FEA has been used to design an experiment with controlled electric field magnitudes over a 1 m sample. Moreover, information from monitoring partial discharges and surface temperature is used to understand the inception and propagation of tracking activity within the structure.",

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AU - Rowland, S. M.

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AB - High voltage insulation systems consist of a combination of different insulating materials, exposed to multiple stresses during operation. Outdoor composite insulators used in transmission lines are typically made of two solid polymeric materials bonded together to form the insulator. Work reported here contributes to the evaluation of degradation within internal interfaces by developing tests to investigate interfacial tracking, with a view to replicating the tracking phenomena seen within composite insulators in service. The present paper highlights high voltage tests on dielectric interfaces with needle electrodes generating local high fields to initiate tracking. FEA has been used to design an experiment with controlled electric field magnitudes over a 1 m sample. Moreover, information from monitoring partial discharges and surface temperature is used to understand the inception and propagation of tracking activity within the structure.

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T2 - Conference on Electrical Insulation and Dielectric Phenomena

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ER -

Developing test methods for interfacial ageing in composite insulators

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