Electrical measuring instruments : grand prize Louisiana Purchase Exposition, St. Louis, 1904 (1904)
Leeds and Northrup Company · leaf 33
al induction. Non-inductive resistances are also pro-vided and arranged so that when a spool of self-induction is cut out anon-inductive resistance of equal value and of wire having the same tem-perature co-eflicient is put in circuit, and thus the resistance of the box isalways the same, while the… … nating current waves. Without these curves one can gain only aninadequate idea of the inner workings of a dynamo, motor or transformer.And considering the rapid multiplication of alternating current apparatus,both of single phase and multiphase varieties, it is evident that the heldof usefulness of…
