Practical Demonstration of High-impedance Fault Detection Technology in MV Distribution Network

Thumbnail Image

Files

CIRED 2019 - 490.pdf (356.03 KB)

Paper number

490

Working Group Number

Conference name

CIRED 2019

Conference date

3-6 June 2019

Conference location

Madrid, Spain

Peer-reviewed

Yes

Short title

Convener

Authors

Tianyou, LI, Fujian Electricity Power Co. LTd., China
Chaoyi, Huang, Quanzhou Electric Power Supply Company, China

Abstract

In MV distribution network, theprobabilityofsingle-phase-to-groundfaultisashighas60% to 80%. Some of these faults can cause personal electric shocks or fire incidents, such as broken wires and wires discharged through the branches. They are classified as high-impedance faults (HIF). The existing faulty line selection and protection devices cannot reliably detect HIF. To ensurespublic safety，it is necessary to develop new technologies for HIF detection in distribution network.This article focuses on these issues, and introduces the research and demonstration of HIF detection technology in Fujian electricity Power Co. Ltd. In addition, artificial grounding tests were conducted to simulate ground faults through resistance, spherical gap, devices, wet earth and dry earth.

Table of content

Keywords

Publisher

AIM

Date

2019-06-03

Published in

CIRED 2019 Conference

Permanent link to this record

https://cired-repository.org/handle/20.500.12455/36
http://dx.doi.org/10.34890/76

ISSN

2032-9644

ISBN

978-2-9602415-0-1