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 384
which sixphases can be obtained from three phases by the use of only three trans-formers. Each transformer has two secondary coils. One secondary of each trans-former is first connected into a delta, then the remaining secondary coils are TRANSFORMER CONNECTIONS. 371 connected up into a delta, but… … Fig. 59. Diagrams of Connections for Changing from Three-Phase toSix-Phase. In the same way the two secondaries can be connected up Y, and one Y turned 1S0° to obtain six phases. The disadvantage of Y connec-tion, however, is that in case one transformer is burned out, it is not possi-ble to…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
