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On-line detection and location of low-level arcing in dry-type transformers

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3 Author(s)
Sidhu, T.S. ; Power Syst. Res. Group, Saskatchewan Univ., Saskatoon, Sask., Canada ; Sagoo, G.S. ; Sachdev, M.S.

This paper describes the development of a microprocessor based system, based on four different physical phenomena, for reliable and accurate detection and location of arcing in dry-type transformers. The proposed technique was tested for actual arcing, generated on a 15-kVA, 230/115-V Y/Δ transformer enclosed in a 30" × 30" × 21" metallic enclosure. Some results showing the performance of the detection and location system are presented in the paper. The technique can be applied to detect arcing in metal-clad low-voltage/medium voltage switchgear, drives, gas insulated switchgear (GIS), generator bus-ducts, and other metal-clad electrical apparatus against arcing

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Power Delivery, IEEE Transactions on  (Volume:17 ,  Issue: 1 )