Title :
Distribution transformer BIL reduction feasibility study
Author :
Baranowski, J.F. ; Goedde, G.L.
Author_Institution :
McGraw-Edison Power Syst., Franksville, WI, USA
fDate :
1/1/1990 12:00:00 AM
Abstract :
A summary is presented of an investigation into the feasibility of reducing basic insulation levels (BILs) for oil-immersed distribution transformers. A projected market make-up of popular kVA and system voltages was determined for the 5-35 kV insulation classes of pole-type and pad-mount distribution transformers. Reduced BIL design cases were used to determine the impact on the transformer´s design and performance. The final results provide both industry cost and total owning cost savings
Keywords :
power transformers; transformer insulation; 5 to 35 kV; basic insulation levels; distribution transformers; oil-immersed distribution transformers; pad-mount distribution transformers; pole-type distribution transformers; ANSI standards; Costs; Electrical equipment industry; Manufacturing; Oil insulation; Power generation economics; Power system economics; Power transformer insulation; Power transformers; Protection;
Journal_Title :
Power Delivery, IEEE Transactions on
