The conditions for which the ratio of no-load current to standstill current of an induction motor is greater than unity are discussed in algebraic and graphical terms. For a special case, where the Goodness Factor equals unity, the maximum ratio occurs when R1/Xm equals the Golden ratio.
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References
1.
LaithwaiteE. R., Induction Machines for Special Purposes, Newnes, (1966).
2.
GardnerM., More Mathematical Puzzles and Diversions, Pelican, (1961).
