NDLI: Through fault current monitoring system to predict the degradation of transformer withstand capability

Content Provider	IEEE Xplore Digital Library
Author	Maryono, H. Septiyani, H.I. Muhlis, M. Nugraha, M.N.
Copyright Year	2011
Description	Author affiliation: PT PLN (Persero) P3B Jawa Bali West Jawa Regional Offices - Maintenance Department, Jl. M. Toha km 04 Cigereleng, Bandung - Indonesia 40255 (Maryono, H.; Septiyani, H.I.; Muhlis, M.; Nugraha, M.N.)
Abstract	PLN P3B Jawa Bali is a unit that responsible for managing and operating the transmission system in Jawa and Bali area. For this utility, power transformer is one of the equipments that has important role in the transmission system, therefore various efforts have been done to prevent transformer failures. To prevent unexpected transformer failure, the condition assessment of distribution transformers is done. Distribution transformer failure analysis has been done as the early stage of the assessment. The results of the analysis indicate that faults on 20 kV feeders are the main root cause of the damage on distribution transformer (150/20 kV and 70/20 kV). Some references also mentioned that the transformer failures caused by 20 kV feeder faults are highly affected by the fault currents and duration. Therefore, this paper will presents about the development of the through fault current (TFC) monitoring system to predict the degradation of transformer withstand capability and its application on distribution transformers 150/20 kV 60 MVA. This system consists of TFC logger, PC concentrator and web based database system. TFC logger will record the fault current and duration that exceed the normal current on the transformer and then send the data to the server. The cumulative TFC data will be used to predict the degradation of transformer withstand capability.
Starting Page	1
Ending Page	4
File Size	1052289
Page Count	4
File Format	PDF
ISBN	9781457707537
ISSN	21556830
e-ISBN	9781457707520
DOI	10.1109/ICEEI.2011.6021713
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-17
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	TFC monitoring system Current transformers Windings Through fault current transformer withstand capability Monitoring Stress Power transformer insulation Fault currents
Content Type	Text
Resource Type	Article

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