Power transformers for 287.5 kv service

Autotransformers rated at 65,000 kva recently built for use at the receiving end of the Boulder Dam-Los Angeles transmission lines are among the largest transformers so far constructed, and incorporate a number of new developments, such as a novel form of tank, an unusual arrangement of radiators and air blast equipment, and improved bushings. The design and method of shipment of these transformers are described in this paper.