Early fuse cut-out

[Trade Journal]

Publication: American Electrician

New York, NY, United States
vol. 8, no. 1, p. 35, col. 2-3


THE VINDEX TRANSFORMER.

 

The transformer shown in the accompanying cut has been especially designed to obtain the smallest possible variation of secondary E; M. F. between no load and full load. To this end the cross section of copper has been increased, which not only improves the regulating qualities of the transformer, but also reduces the temperature of the coil, which runs at but slightly increased temperature over that of the surrounding atmosphere. It will be noticed that the coil of the transformer is very short, whereby a more efficient radiating surface is secured and the magnetizing or leakage current reduced. The iron laminae of the core proper of the Vindex transformer have very close contact from being p