Case Study on GIS Internal Latent Fault

doi:10.11930/j.issn.1004-9649.2014.7.86.4

Abstract

Abstract: Based on gaseous DPD (decomposition products detection) and PD(partial discharge) detection, three typical cases of internal latent fault cases of GIS are introduced, which have different characteristics: the gaseous DPD result is abnormal but the PD signal is not detected; the gaseous DPD result is normal but the PD signal is detected; the gaseous DPD result is abnormal and the PD signal is detected. The equipment are verified to have defects through disintegration examination. Therefore, gaseous DPD and PD detection technologies have expectable application prospect in the internal latent fault detecting of GIS.

Key words: GIS, internal latent fault, gaseous decomposition products detection, partial discharge detection

CLC Number:

TM506

LUO Hong-tao, HUANG Wen-wu, ZOU Hong-min, LI Si, CHEN Zhi-xiong. Case Study on GIS Internal Latent Fault[J]. Electric Power, 2014, 47(7): 86-90.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.7.86.4

https://www.electricpower.com.cn/EN/Y2014/V47/I7/86

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