IEEE Power & Energy Magazine - May/June 2019 - 10

Figure Captions
The following lists four figures and captions from Joseph J. Cunningham's "History" column (see [1]), included here for convenience.

(a)

figure 3. Tesla's model induction motor as demonstrated before the AIEE in 1888 May. (Image courtesy of
the National Museum of American History, Smithsonian
Institution.)

figure 5. Sheet 2 of Tesla Patent 381968, "Electromagnetic Motor," dated 1 1888 May, which shows Tesla's
initial two-phase generator and induction motor.

10

ieee power & energy magazine

(b)

figure 4. Engineers working for George Westinghouse refined
Tesla's concept and introduced this two-phase motor in 1888.
(a) A front view and (b) side view. (Photos courtesy of the National Museum of American History, Smithsonian Institution.)

figure 6. Sheet 3 of Tesla Patent 381968. This threephase concept was a harbinger of the future trend and
eventual dominance of three-phase systems. "The
peculiar advantage of this disposition is in obtaining a
more concentrated and powerful field," as stated by
Tesla on page 3, line 70 of the patent text.

may/june 2019



IEEE Power & Energy Magazine - May/June 2019

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - May/June 2019

Contents
IEEE Power & Energy Magazine - May/June 2019 - Cover1
IEEE Power & Energy Magazine - May/June 2019 - Cover2
IEEE Power & Energy Magazine - May/June 2019 - Contents
IEEE Power & Energy Magazine - May/June 2019 - 2
IEEE Power & Energy Magazine - May/June 2019 - 3
IEEE Power & Energy Magazine - May/June 2019 - 4
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IEEE Power & Energy Magazine - May/June 2019 - Cover3
IEEE Power & Energy Magazine - May/June 2019 - Cover4
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