NDLI: On-line and on-site PD monitoring and diagnosis of power transformer

Content Provider	IEEE Xplore Digital Library
Author	Chun-She Xu Zhen-Quan Sun Guan-Jun Zhang
Copyright Year	2012
Description	Author affiliation: State Key Lab of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China (Chun-She Xu; Guan-Jun Zhang) \|\| R&D center of smart distribution grid, Shaanxi Regional Electric Power Group Co., LTD, Xi'an, Shaanxi 710061, China (Zhen-Quan Sun)
Abstract	Assessing the insulation condition of high-voltage transformers is essential for repairing and maintaining based on condition of equipment. For the instant diagnostic examination of PD with oil-paper insulated transformers, basically physical method directly related to PD is currently used electric signals. Based on advanced sensor technology, PD detectors with enhanced options for discriminating disturbances were carried out on-site and on-line. PD values condition changes of the insulation system can early be identified and evaluated with simple trending. Consequently, PD monitoring and diagnosis systems allow conditioned based maintenance strategies, serve asset appraisements and permit continuous risk assessment. The reliability and safety of the HV equipment and the system operation of the power network can be increased. The application of on-line and on site PD diagnosis of power transformers in service is a powerful tool to detect defects in the coil insulation. The approach with long term monitoring with remote access through substation communications or the web is important for the lifetime management of ageing transformers The techniques are described, together with cased studies of their application on the engineering practice field.
Starting Page	293
Ending Page	296
File Size	3316056
Page Count	4
File Format	PDF
ISBN	9781467310192
e-ISBN	9781467310208
DOI	10.1109/CMD.2012.6416434
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-23
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Partial discharge measurement Insulation Current measurement transformer online on site Monitoring Power transformer insulation partial discharge
Content Type	Text
Resource Type	Article

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