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Investigation of Partial Discharge in Solid Dielectric under DC Voltage

Investigation of Partial Discharge in Solid Dielectric under DC Voltage
Investigation of Partial Discharge in Solid Dielectric under DC Voltage
A partial discharge, or PD, is defined as an electrical discharge that is localized within only a part of the insulation between two separated conductors. Recent research on PD mainly focuses on the study of PD characteristics under AC voltage. Compared with DC, PD under AC is more serious and can be easily detected in terms of PD number. As the results of these concentrated research, the understanding of PD under AC condition has been significantly improved and features extracted from PD measurements have been used to diagnose the insulation condition of many power apparatus.
Recently, rapid development in HVDC transmission and power grids connection, and widely applied DC cable and gas-insulated switchgear because of their benefit in long distance usage lead to an increasing concern about PD under DC. However, available study for the condition is little and related research is therefore necessary and essential for understanding the lifetime and reliability of apparatus.
He, M
24cefbbd-e114-42cb-b4d0-094e5458a1fc
Tian, J
248916ee-499f-44dd-b75a-5ba18b2a393f
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
He, M
24cefbbd-e114-42cb-b4d0-094e5458a1fc
Tian, J
248916ee-499f-44dd-b75a-5ba18b2a393f
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

He, M, Tian, J, Chen, G and Lewin, P L (2014) Investigation of Partial Discharge in Solid Dielectric under DC Voltage. UHVNet 2014, United Kingdom. 15 - 16 Jan 2014.

Record type: Conference or Workshop Item (Poster)

Abstract

A partial discharge, or PD, is defined as an electrical discharge that is localized within only a part of the insulation between two separated conductors. Recent research on PD mainly focuses on the study of PD characteristics under AC voltage. Compared with DC, PD under AC is more serious and can be easily detected in terms of PD number. As the results of these concentrated research, the understanding of PD under AC condition has been significantly improved and features extracted from PD measurements have been used to diagnose the insulation condition of many power apparatus.
Recently, rapid development in HVDC transmission and power grids connection, and widely applied DC cable and gas-insulated switchgear because of their benefit in long distance usage lead to an increasing concern about PD under DC. However, available study for the condition is little and related research is therefore necessary and essential for understanding the lifetime and reliability of apparatus.

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Published date: 15 January 2014
Venue - Dates: UHVNet 2014, United Kingdom, 2014-01-15 - 2014-01-16
Organisations: EEE

Identifiers

Local EPrints ID: 366667
URI: http://eprints.soton.ac.uk/id/eprint/366667
PURE UUID: 50120879-d817-4be2-b04a-753c713ad69e

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Date deposited: 04 Jul 2014 15:06
Last modified: 18 Jul 2017 02:09

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