Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 352
Figs. 6 and 7. Natural Draft Transformer — Showing Case Removed. coils are built up high and thin, and assembled with spaces between them,the air being forced through these spaces. The iron core is also built upof numerous openings through which the air is forced for cooling pur-poses. This style… … Fig. 8. Air-Blast Transformer.Si Heating* Tests. Transformers in their cases. (Ford.) Rise Watts ra-diated persq. in. of Case. w2. Watts ra-diated Rise Watts ra-diated per Watts ra-diated No. inTempera- per sq. in.of Core No. inTempera- sq. in. of Case. per sq. in.of Core ture °G. and Coils. ture…
Electrical engineering
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