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What is the formula for the slot pitch factor in design of rotors?(a) slot pitch factor = 3.14*rotor diameter*number of rotor slots(b) slot pitch factor = 3.14/rotor diameter*number of rotor slots(c) slot pitch factor = 3.14*rotor diameter/number of rotor slots(d) slot pitch factor = 1/3.14*rotor diameter*number of rotor slotsI have been asked this question in an internship interview.This question is from Design of a Small Reluctance Motor in portion Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines

Answer» CORRECT answer is (c) slot PITCH factor = 3.14*rotor DIAMETER/NUMBER of rotor slots

Easy explanation: First the rotor diameter and the number of rotor slots are first calculated. On substitution the slot pitch factor can be obtained.


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