Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 398
ELECTRICITY The Tricity elements consist of nichrome ribbon wound over thinmica and clamped between thin sheets of mica and metal. Themethod of winding provides for uniform distribution of heat at anyloading. The Bastian or Quartzalite element consists of a spiral of ni-chrome wire or ribbon coated… … SINGLE ELEMENT VWWWWWVAAAAA 1 /WWWWWWWW DOUBLE ELEMENT B VSAAAAAAAAAAAAAA Fig. 4,400.—Arrangement of internal circuit for heaters giving three heating values. In thediagram A, represents one third of the heating circuit; BB, two thirds. With switch S on,one-third of full heat is given; with S\ two…
Electrical engineering
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