Title :
On-line detection and location of low-level arcing in dry-type transformers
Author :
Sidhu, Tarlochan S. ; Sagoo, Gurinder S. ; Sachdev, Mohindar S.
Author_Institution :
Power Syst. Res. Group, Saskatchewan Univ., Saskatoon, Sask., Canada
fDate :
1/1/2002 12:00:00 AM
Abstract :
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
Keywords :
arcs (electric); computerised monitoring; fault location; power transformers; 115 V; 15 kVA; 21 inch; 230 V; 30 inch; dry-type transformers; gas insulated switchgear; generator bus-ducts; low-level arcing; metal-clad LV/MV switchgear; metal-clad electrical apparatus; metallic enclosure; online arcing detection; online arcing location; Acoustic sensors; Acoustic signal detection; Cameras; Gas insulation; Infrared sensors; Power system reliability; Switchgear; Testing; Thermal stresses; Transformers;
Journal_Title :
Power Delivery, IEEE Transactions on
